hybridfree/eevblog-posts huggingface dataset:
Why some thermal cameras can stand direct sun light while others can't? - Page 1
Forum section: electronics / general

author: hoki
author_rank: Newbie
timestamp: February 19, 2019, 06:06:35 pm
content: Hello.I remember most BST and A-Si cameras will suffer damages if point at the sun, but most VOx cameras won't, why?Some product sheet list that as "built-in solar protection", so is that a kind of protect film in front of the sensor, and not the nature of different sensor technonogy? How does that protect material work?Thanks.

author: Bill W
author_rank: Super Contributor
timestamp: February 19, 2019, 06:32:31 pm
content: BST sensors were generally OK, it was a lump of ceramic bonded to a substrate so didn't get that hot. i suppose you could melt the chopper if you tried hard enough though.In principle all A-Si are vulnerable as it is a thin wafer of material up in a vacuum, so the sun can get that quite hot and must change pixels permanently. Nothing a factory recalibration won't fix though.All sensors have a number of anti-reflection coatings on both windows and top layers, so together with any tweaks to the material itself done right that must protect A-Si enough to avoid permanent damage. It is unlikely to be done as an additional film.All cameras will show some minutes or more of 'burn in' from a very hot object as the sensor and underlying circuitry got hot and need to cool back down.Someone else can talk for V-Ox, not used enough of them, but on the face of it should not be a lot better than A-Si but may be protected the same way too. You can burn a VOx camera temporarily with block at 700°CBill

author: tuzakeyiwe
author_rank: Newbie
timestamp: April 25, 2019, 10:05:51 am
content: I remember I saw a Raytheon A-Si camera core on both ebay and Youtube, which have a curved line of pixels that do seems to be permanently burnt, not only temporarily shifted.I also have a blurry memory that the owner said the camera was used as a CCTV camera outdoor, then it was burned by the rasing sun in the morning.I cannot find the source for now...

author: Fraser
author_rank: Super Contributor
timestamp: April 25, 2019, 01:43:58 pm
content: It was Andrews camera at RTF TechnologiesHe is a member of this forum.http://www.rtftechnologies.org/general/thermal-imager-L3-thermal-eye-2500AS-2620AS.htmlhttp://www.rtftechnologies.org/general/thermal-imager-comparison.htmlFraser
Why do some Flir TG series have a separate thermal sensor? - Page 1
Forum section: electronics / general

author: vucaxi
author_rank: Newbie
timestamp: April 24, 2019, 02:24:21 pm
content: Hello,As title, I don't understand that, why they do such a design that will even increase their cost?Thanks.

author: Vipitis
author_rank: Frequent Contributor
timestamp: April 24, 2019, 02:50:32 pm
content: They cheap out on calibration. The low resolution sensor only gives relative values. The pyrometer is calibrated to give absolute values.
Does anyone play around with hikvision Thermal products? - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: May 05, 2019, 11:25:06 pm
content: For example this one:https://www.hikvision.com/en/Products/Thermal-Camera/Handheld-Observational-Camera/I was looking into the Price list and got shocked for that products.The Image quality for the "Handheld Observational Thermal Monocular" who I could found on Youtube was ok.So does anyone here play around with hikvision products?
What to look for shopping for a  Flir E4 - Page 1
Forum section: electronics / general

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: April 23, 2019, 09:15:53 pm
content: Trying to find out what yr. , model , version etc. to look for in a Flir E4 ?How to ID , what to look for for upgradability ?
Fraser is looking to rehome some ISG Talisman Project cameras - Page 1
Forum section: electronics / general

author: Fraser
author_rank: Super Contributor
timestamp: April 23, 2019, 10:49:24 am
content: Hi,As some may know I am having a major purge on unused equipment and projects that I have never got around to starting. Amongst the projects are a bunch of ISG Talisman thermal cameras. They are ex fire service cameras that use a BST sensor array. Most came to me as faulty which is why I bought them. I like repairing stuffOK, I paid £80 each for the project cameras. They are complete and I have not even opened their casings. The faults could be simple or complex, I honestly have no idea. It may well be a ‘quick win’ to make one good camera from two faulty units. The parts donor may then be repaired in slow time using the good unit as a reference for tests etc. A nice little fun project for not a lot of money were my thoughts when I purchased them.I do have one fully working Talisman BST with new battery and new charger. That cost me somewhat more than £80 but it will also be rehomed. Likely price will be £150.If anyone wants to take on these project cameras for some fun learning about the technology and hopefully returning the cameras to full operation, please get in contact. A bulk sale is possible. I think I have 4 faulty, 1 good and one early PEvicon version. The real Germanium lens assembly in these cameras is worth at least £40 on its own.These are waterproof cameras so great for external observation, CCTV or wildlife spotting.Fraser
Best 320x240 Camera Hardware/Software for around $500 USD - Page 1
Forum section: electronics / general

author: beanflying
author_rank: Super Contributor
timestamp: May 11, 2019, 06:18:46 am
content: Firstly I HATE this sort of thread as it promotes mine is better than yours or 'I heard once of site X online Brand X is ....' instead of actual factual information.I am not interested in tinkering or having to mod/rebuild or program a better mousetrap (that may change of course), so what is the best readily available commercial solution to this sort of spec. In this day and age most of us have a tablet or smart phone so having a screen on the camera or not is unimportant and better spec is more important.320x240 Camera or a bit more to the TE-Q1Temperature Range -10 or more to 300C9 FPS is fine and keeps any potential import issues minimalAbility to be remote mounted from the attached device if possible.Options?TE-Q1 ProSEEK Compact ProXtherm T3 ProHT-19 (bit more than the budget?)Dianyang 320x240 which will run on the SEEK software. Guinea Pig option but I am tempted to take the plunge @ $399Other better Apps or Software that will work with any of the above?any others I should be considering?

author: bugi
author_rank: Regular Contributor
timestamp: May 11, 2019, 09:06:48 am
content: The TE-Q1 non-Pro can also do higher than their specified temperature "limits". A quick check with their android app default setup using my TE-Q1 with 13mm lens measured a stove going up to around 240C (value changed only slightly depending on the camera orientation/direction). Whether that was the limit of the stove (i do not think this was the case) or the camera and how accurate that high temperature value is, or e.g. whether the camera has been calibrated for the 13mm/1 lens or 6.8mm/1.3 lens, are something I don't know. (The SDK's internal temperature tables go from -30 to 260, but I think those values are missing +20 of ambient correction or something.) I've read in older thread of TE-Q1 showing values up to around 280C, but I've not read anywhere that this model would have reached 300C, so might still not qualify.

author: Vipitis
author_rank: Frequent Contributor
timestamp: May 11, 2019, 09:10:55 am
content: The Xinfrared dongles do compare to the ThermExpert rather well. There is a side by side post and some said that it won. Worth considering. ThermApp might be an option as you can likely get it used for your budget.

author: beanflying
author_rank: Super Contributor
timestamp: May 11, 2019, 09:23:42 am
content: Quote from: bugi on May 11, 2019, 09:06:48 amThanks, I really need to be around the 300C. Coffee Roasters I play with run at Air Temps of 230+ and the metal above that in places. General Commercial Ovens will be up there too and I do play with them from time to time.Quote from: Vipitis on May 11, 2019, 09:10:55 amThanks I will add any reasonable options to the first thread if any others want to follow later
FLIR Thermal Studio released - Page 1
Forum section: electronics / general

author: Hyper_Spectral
author_rank: Regular Contributor
timestamp: April 18, 2019, 06:26:09 pm
content: Looks like FLIR finally got that software out that gives users functionality they should have had years agoI haven't had much time to explore the software yet, but here's a brief description from FLIR:QuoteThe software has a bit of a steep learning curve, but it appears that it's mostly intended for batch modification of images so it definitely fits a role. Whether or not that's worth the $899...well it's probably not worth that much... but I'm sure my company will still pay for ithttps://www.suasnews.com/2019/04/flir-announces-thermal-studio-for-drone-pros/

author: Fraser
author_rank: Super Contributor
timestamp: April 18, 2019, 06:58:30 pm
content: $300 rebate for FLIR TOOLS+ and Reporter licence holders.I have several licenced versions of FLIR Reporter but I am more into the image analysis side of things so ResearchIR 4 MAX is more appropriate for me.Fraser

author: Vipitis
author_rank: Frequent Contributor
timestamp: April 18, 2019, 07:21:01 pm
content: hm, there seems to be a free trail - got to see the terms for it.https://www.flir.com/products/thermal-studiohttps://www.flir.com/globalassets/imported-assets/document/flir-thermal-studio-datasheet2.pdfit looks like the main features are batch processing and video enhancement.

author: Hyper_Spectral
author_rank: Regular Contributor
timestamp: April 18, 2019, 09:12:29 pm
content: I will say the program overall is much more stable than the prior FLIR tools but it still doesn't make much sense to me as to why the main portion of the program is licensed when the images themselves are already a proprietary format.I'm pleased that they allow you to turn off the image overlays and branding, at least for the cameras that capture with no branding
IRay A8 IR IPC is coming - Page 1
Forum section: electronics / general

author: Davidli
author_rank: Contributor
timestamp: April 13, 2019, 02:04:26 pm
content: 240*180 6.8MM 25HZ ONVIF NTSC .

author: Davidli
author_rank: Contributor
timestamp: April 13, 2019, 02:17:23 pm
content: add more picture

author: frenky
author_rank: Unknown
timestamp: April 15, 2019, 07:32:52 am
content: And price is?
New 2000AS FFC - Page 1
Forum section: electronics / general

author: Elk-ECE56
author_rank: Contributor
timestamp: April 12, 2019, 10:01:58 pm
content: First off, I want to thank everybody who helped me out on my last post about the 2000AS, however I got some FFC's today that I ordered online. Which I am questioning if they would work(See the pictures) They are much shorter than the original which shouldn't effect the functionality because they are long enough for what I am using the 2000AS for, but before I power it on I just wanted to verify if they would work. Thank you.Pictures(They were too big to upload so I linked them with imgbb):https://ibb.co/prVv3J7https://ibb.co/g3VFmPHhttps://ibb.co/fH76MCzhttps://ibb.co/rdwfKSn

author: Fraser
author_rank: Super Contributor
timestamp: April 12, 2019, 10:32:17 pm
content: If the contact width, pitch, total ribbon width and thickness are the same as the original, the new ribbons will work. Whether the ribbon will cope with what you are doing with it is another matter. Only time will tell.Most of these ribbons are intended for inter PCB connection so are not regularly flexed. PCB interconnects that will experience regulat slewing or abrasion are heavier duty and carefully designed to cope with such use. A perfect example is the ribbon that connects a CD or DVD drive laser head to the main PCB.Fraser

author: Elk-ECE56
author_rank: Contributor
timestamp: April 12, 2019, 11:35:21 pm
content: Ribbon width is the same, as for the contact width Im not too sure I couldn't measure it out but the pictures and IRL look pretty much the same to me. But I see.
Theory of Flir E4 hack - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: November 26, 2018, 06:41:21 pm
content: My understanding of resolution hack of Flir E4 (changing to 320 x 240 resolution ) isthatcommon_dll.dllandconf.cfcfilesmust be replaced with new/modifiedcommon_dll.dllandconf.cfcfiles . How do these new files differ from those default files?I followed tutorial athttps://fubar.gr/hacking-the-flir-e4/but when trying to modify files withpython apply.py apply 192.168.0.2I received the following error= CONNECT TO FTP= CREATING BACKUP DIR backup-20180509022127= RETR /FlashBFS/system/common_dll.dllraceback (most recent call last):File "apply.py", line 90, in <module>assert found, "UNKNOWN %s: digest/len is %s" % (name, h)ssertionError: UNKNOWN common_dll.dll: digest/len is 75b37c3c755409cc355d2875eadfa128f8e6e27a1b2adf92273656a20ceb5037Can anyone explain?Thank you

author: waelbh
author_rank: Newbie
timestamp: April 13, 2019, 01:32:30 pm
content: hellowhat happened to ur cam , did u performed the hack or no?best regards

author: tmbinc
author_rank: Frequent Contributor
timestamp: April 14, 2019, 07:41:10 pm
content: I'm not sure if you want to understand the theory behind the hack, or just figure out a way to make this work. In case of the former:The CFC file contains the feature limitations (resolution, noise, some menu enablements). But the file is signed so it can't be modified (unlike earlier version's CFC files which just had a CRC).common_dll.dll contains the code to validate the signature. However, common_dll.dll is hash-checked at boot, and the software doesn't autostart if the hash doesn't match. So removing the signature check from common_dll.dll must be done without affecting the computed SHA digest.Is that possible?In theory, this would require a hash collision between the original common_dll.dll and the patched common_dll.dll. But in practice, FLIR can't code and messed up their hash; it uses signed chars when shifting the input bytes to words. This means that under certain circumstances, the sign bit (which is repeated on right-shifts for signed chars) is masking the data, which allows this data to be modified without the hash being affected. By "cleverly" (meaning: took ~10 minutes) searching a location which a.) removes the CFC signature check and b.) doesn't affect the common_dll.dll hash, it was possible to modify the firmware to enable higher resolution etc.In your case, the hack version doesn't understand the firmware version on the device. Which version do you have installed on the cam?
Dark auras in white hot thermography - Page 1
Forum section: electronics / general

author: Conure
author_rank: Contributor
timestamp: April 21, 2019, 09:00:49 am
content: I have noticed that on some white-hot pictures of thermal imagers there is a dark aura around hot objects. I have never seen these myself using TE-Q1. What causes those?The building against the sky.Dark around the antelopes.Around the people.On the first from the left.Around the airplane and some people.

author: tszaboo
author_rank: Super Contributor
timestamp: April 21, 2019, 09:25:07 am
content: Probably some algorithm, enhancing contrast. They might be running some edge detection, and decrease the intensity outside.

author: hamster_nz
author_rank: Super Contributor
timestamp: April 21, 2019, 10:13:16 am
content: Maybe it ia an effect similar to the "orthicon halo' in old video cameras, where parts of the sensor interact in an unhelpful way.

author: Rerouter
author_rank: Super Contributor
timestamp: April 21, 2019, 10:22:49 am
content: atleast on the video, i would definatly put it down to a contrast compression algorithm, the glowing white tyres have a dark halo around them, and the brighter the object the darker the halo.

author: Vipitis
author_rank: Frequent Contributor
timestamp: April 21, 2019, 12:19:34 pm
content: In the ThermApp example those are from the processing. It's the simplest form of sharpening and here it has some smoothing.It may also mimick BST based cameras. Those have this half/aura effect by how the sensor works.

author: Ultrapurple
author_rank: Super Contributor
timestamp: April 22, 2019, 02:02:15 pm
content: Vipitis is right - it's down to the processing, not any kind of fault or behaviour of the sensor. Here are four views of the same object (a tumble drier) taken with a Therm-App 384x288 9Hz with 6.8mm f/1.4 lens and ThermViewer driver software in various modes:Black HotWhite HotEnhancedNight VisionAll of these are essentially the same image, just processed differently. Enhanced, in particular, looks quite like the samples by the OP.
Handling .IRB Files - Page 1
Forum section: electronics / general

author: RHilland
author_rank: Newbie
timestamp: March 28, 2019, 08:51:36 am
content: Hi there, I've recently come in to possession of an InfraTec VarioCAM, but the output files are .IRB and I can't find any good information on how to handle these. Does anyone have any experience with this file type or am I condemned to use their software?

author: railrun
author_rank: Regular Contributor
timestamp: March 28, 2019, 10:11:03 am
content: Can you upload a file? Thanks

author: joe-c
author_rank: Frequent Contributor
timestamp: March 28, 2019, 12:19:56 pm
content: Quote from: RHilland on March 28, 2019, 08:51:36 amHello,interesting, you are the other one who buy the camera.i was in contact with the seller on "EbayKleinanzeigen" but you may faster. Was it a good buy?anyway, upload a few .IRB frames ans lets see whats inside.best wishes

author: Fraser
author_rank: Super Contributor
timestamp: March 28, 2019, 12:48:48 pm
content: RHilland,This thread may be of some interest to you. The IR-TCM 384 static thermal camera.https://www.eevblog.com/forum/thermal-imaging/the-story-of-an-unusual-thermal-camera-purchase-by-fraser/Your camera is basically the hand held version of the static camera detailed in the thread. I own two of them they are both working with the only software I could find on the internet to drive them.If you have later software, I would love to hear from you 🙂Fraser

author: mahony
author_rank: Regular Contributor
timestamp: March 29, 2019, 09:36:39 pm
content: I did reverse engineer some file from a 1024x768 Variocam some time ago - basic file reading display should be easy. The file layout is a bit off from what I have seen on other IR camera (FLIR .ptw, .sfmov and so on). Here is roughly what it is about:Code:private const int IRBISFileHeaderSize = 512;private const int IRBISDummyDataSize = 6400;private const int IRBISFrameHeaderSize = 512;private const int IRBISFrameFooterSize = 6400;private const int IRBISImageHeaderSize = 7761;//where Video structure is://FileHeader + Dummy+FrameHeader+Frame+FrameFooter + Dummy+FrameHeader+Frame+FrameFooter + ... + + Dummy+FrameHeader+Frame+FrameFooter//offset to data of frame N is://offset = 512 + 6400 + 512 + N*(w*h*2 + 6400 + 6400 + 512)//and file size is://size = 512 + N*(6400 + 512 + w*h*2 + 6400)//or N from file size://N = (size - 512) / (6400 + 512 + w*h*2 + 6400)The nasty thing is that image width and height can not be found in the header, but instead in each frame footer. So I choose to read the last frame footer and get image size from there to be able to read all the rest of the data.For the camera data I dealt with image width was at offset 196 and height at offset 198 in each frame footer encoded as 16-bit integer.I did not mess around with any of the calibration data - just reading the raw pixel data and displaying it. Hope this helps...
Need specs for several thermal cameras... - Page 1
Forum section: electronics / general

author: lawizigef
author_rank: Newbie
timestamp: February 04, 2019, 04:12:04 am
content: Hello guys.I need specs for the following thermal cameras, but I cannot find them on internet.Bullard T3Cadillac Thermal Night VisionE2V Argus 3ISI Vision 3ISG Firecam k80I need to know the sensor type, resolution, frame rate, and FOV.If anyone can help, thanks a lot.

author: Vipitis
author_rank: Frequent Contributor
timestamp: February 04, 2019, 07:35:03 am
content: Information on the Argus here:http://www.fire-tics.co.uk/A3.htmE: corrected the link.

author: Bill W
author_rank: Super Contributor
timestamp: February 16, 2019, 08:50:02 pm
content: Quote from: lawizigef on February 04, 2019, 04:12:04 amThe original Bullard T3 used a Raytheon 2000AS, and moved up as cores improved. 50° FoVCadillac Thermal Night vision used a Raytheon BSTe2v/Marconi Argus 3 used both Raytheon BST or 2000AS, as Vipitis says the specs are on my website. 50° FoVISI Vison 3 used a Raytheon BST. 50° FoV Photo below.A close cousin of the ISG K90ISG Firecam 80 was an early ULIS sensor (need to check which). 55° FoV

author: parkerg
author_rank: Newbie
timestamp: March 28, 2019, 08:29:44 am
content: I need specs for the following thermal cameras, but I cannot find them on internet.some of the infoBullard T3Sensor: 160x120 (a-Si) 19,200 pixelsFOV: 50º horizontalNETD <100 MKCadillac Thermal Night VisionE2V Argus 3Sensors: 320x240 (BST) - 160x120 (a-Si) limited number of Lockheed (BAE) 320x240 (VOx)FOV: 50º (BST & aSI), 44.7° VOxMDTD: <100mKISI Vision 3Sensor: 320 X 240 BSTRefresh rate: HzFOV: 59º horizontalISG Firecam k80ISG – K80 Firecam (USA market)Sensor: 160x120Refresh rate: HzFOV: º horizontal
Figuring out some low-cost options for a rm, 160x120 (or better) IR imager - Page 1
Forum section: electronics / general

author: frogg
author_rank: Regular Contributor
timestamp: March 25, 2019, 04:05:56 pm
content: Hi folks,I'm new here, so likely I'll be posting more questions than answers at this pointOne thing I'm trying to do is figure out the most cost effective way to obtain at least a 160x120 pixel radiometric IR imaging device.The first option I'm considering is a radiometric Lepton 3.5 on a Purethermal 2 board ($354) or a Purethermal 1 board ($349). The pricing, I assume, is there to encourage the purchase of the newer board. I like this option since it also has decent associated software support.Another option is the radiometric lepton 3.5 on a lepton breakout board, which brings costs down to around $290, but the extra cost of building the interface might make this a false economy ( for me, at least )the original/old Seek Reveal is currently in the low $300 range, has the advantage of being a self-contained unit, but also uses a noisy sensor, and is pretty limited in terms of interface. The same goes for the Android/iOS ThermalXR, which as I understand it, doesn't have particularly good 3rd party software support if I want to connect it to a windows or linux box (Seek-o-fix). The Flir ONE Pro seems to have the same issues. (Maybe i'm wrong there?)That's about the extent of my limited knowledge on the subject. Are there any new products that might fit the bill?I know that there is some discussion about the 220 x 160 IR HTI handhelds that are now selling for around $409. There are bunch of older fluke-style handheld meters, but they seem to have software-based limitations on max temp, no savings images, no PC connection, etc.Any thoughts on something like the HTI HT-18 vs a Lepton radiometric 3.5 on a groupgets board? I know they are two very different products - one is a handheld imager with a display, the other is PC-only.Thanks

author: Vipitis
author_rank: Frequent Contributor
timestamp: March 25, 2019, 06:33:10 pm
content: Hey,as far as HTI goes - that is a seek core rehoused. I don't know how comfortable you feel about it - but a good trick in the past has been to pickup a used FLIR ONE on eBay and take out the Lepton core.

author: johnparker
author_rank: Newbie
timestamp: March 26, 2019, 01:42:52 am
content: Recently tried out the PerfectPrime IR0018 and seems pretty great. The resolution is 220 x 160 and images are quite good.Not sure if discounts are reusable, but they gave me this (5DHIOWHSK) to get 5% off. You can try it out.Excellent product for its value.Here is the link to the IR0018:https://perfectprime.com/products/ir0018
DIY-Thermocam help in Sydney - Page 1
Forum section: electronics / general

author: Rycroft
author_rank: Contributor
timestamp: March 11, 2019, 03:38:24 am
content: Hi,A few years ago I built Max Ritter's DIY Thermocam.https://github.com/maxritter/DIY-ThermocamIt went together fine but I couldn't program the Teensy microcontroller. I only have Macs and couldn't get my head around the Mac upload procedure. I convinced a work colleague with a PC to have a go and after a bit of work he managed to get the firmware installed.I couldn't leave well enough alone and I tried to update the firmware with the procedure for a Mac and it failed and I believe it wiped the original firmware.I was hoping someone in Sydney, Australia, with more knowledge than me in programing (that's not going to take much) could have a go at reinstalling the firmware for me. I'm happy to pay for your time.I've fumbled my way around uploading to Arduinos a couple times but it seems the Teensy needs something more than I can do.Thanks,Rick

author: Spirit532
author_rank: Frequent Contributor
timestamp: March 18, 2019, 12:36:27 am
content: Just install a Windows VM if you're unable to run it on the Mac directly.
FLIR TAU 2 - Page 1
Forum section: electronics / general

author: adamp
author_rank: Newbie
timestamp: March 12, 2019, 12:04:07 pm
content: Hi GuysNot sure if this is allowed here but I am selling my Flir TAU 2.It is on ebay at the moment but if anyone wants to make me a sensible offer I can take it down and sell privately.Here is the link,http://ebay.us/NzcjTo?cmpnId=5338273189I also have the internals of the F-334 camera with the nexus server if anyone wants it.Again sorry if I have posted this in the wrong place.
Import Regulation help - 25Hz thermal sensor - Page 1
Forum section: electronics / general

author: timmystewart
author_rank: Newbie
timestamp: March 14, 2019, 02:24:27 am
content: Hi,Does anyone know if there are any regulations or restrictions to import a 25Hz thermal sensor from China to USA?If a license is needed, where can we apply for the license?Thank you in advance.

author: Bill W
author_rank: Super Contributor
timestamp: March 15, 2019, 03:42:24 pm
content: There are only export restrictions for thermal technology, ie it is the exporter who has to get it right and be allowed to send it out of the country.Import restrictions are usually on things like food and medical items where there is a hazard to the country it arrives in.There are also import taxes/duties, which you'd need to pay as the importer.As mentioned above, you can end up with items stuck in the 'fussiest' country, you got it in OK but now cannot get it back out. US is the biggest problem, even for UK sourced items.Bill
FLIR PM575 on eBay - possibly a good buy - not mine ! - Page 1
Forum section: electronics / general

author: Fraser
author_rank: Super Contributor
timestamp: March 09, 2019, 12:24:57 am
content: There is a very nice condition FLIR PM575 on eBay at the moment. It is not one of mine and I have no connection to the seller or auction. It may go for a good price as some people are put off by these cameras age and format. Me ? .... I love themhttps://www.ebay.co.uk/itm/Flir-PM-575-Thermal-Imager/292993941629?_trksid=p2485497.m4902.l9144The battery packs are a relatively easy rebuild as they contain eleven size ‘A’ Mi-Mh cells that can be replaced with 2Ah or higher capacity size ‘AA’ cells very cheaply. No nasty battery management chips in these batteries. The camera normally stores its images to a PCMCIA flash card but you can use a CF to PCMCIA adapter and most CF flash cards of 512MB or smaller capacity.I would normally buy this camera, but I am behaving myself these days so there will be no competition from me. I know how to repair and maintain these PM series cameras so there is at least some support for them via this forumThe images stored by these cameras may be viewed using the free Image Explorer 99 software that is available from the FLIR software download site. Researcher software may also be used but it is not free. Note that due to the era of this camera, software generally needs a Win XP platform on which to run correctly.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: March 09, 2019, 02:37:54 pm
content: Full disclosure. I made contact with the seller of the camera and he is now a member of this forum as a result.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: March 13, 2019, 11:51:07 am
content: The PM575 sold for decent money yesterday.Was the buyer a member of this forum ? If so, please feel free to ask any questions and I will see if I can helpThe FLIR information archive site contains the manuals, software etc........https://flir.custhelp.com/app/account/fl_downloadsTo download software you need to register but it is no great problem. FLIR will provide an account. Downloading manuals does not require registration.If the camera came with any software user manuals, you should find the activation licence code on a label inside the front cover or fly sheet.To view the captured images on a PC you use Image Explorer 99 which is a free program. FLIR Researcher is used for detailed image analysis. IIRC FLIR Tools does not support the image format, but I could be wrong.Fraser

author: Ultrapurple
author_rank: Super Contributor
timestamp: March 13, 2019, 02:19:07 pm
content: It wasn't me, though I did bid. I dropped out around the £500 mark.
Flir One Pro internally wired to charge from device - Page 1
Forum section: electronics / general

author: Leftfield
author_rank: Newbie
timestamp: March 12, 2019, 05:43:56 am
content: Took the Flir One Pro apart and connected the ground and vcc from the male usb-c output to the female charge port. Now my Flir One charges itself from the device. Stays 100% all the time.(don't mind the tape, I was gonna stick it to the back of my device)I don't think it even needed a battery. They probably put in their to limit usage.(if your gonna try this do so at your own risk, I kinda just winged it)
Thermal Imaging Discord - Page 1
Forum section: electronics / general

author: Vipitis
author_rank: Frequent Contributor
timestamp: March 05, 2019, 04:57:45 pm
content: A few of your have already got a PM from me about this. For those who already know Discord, you can find the invite link at the bottom.Discord is a chatting platform initially marketed towards gamers, but now there are many other communities on Discord. It works by having users on a Server with different channels(chatrooms), it also allows for voice communication. I am fairly active on Discord in servers about 3D printing, esports betting, photography, cinema cameras, games as well as a few small groups of direct friends. By pure chance I met another forum member and flooded a borderline related chatroom with a discussion about thermal cameras. The idea was born to start a Discord dedicated to Thermal Imaging. While there is basically nothing on there yet, gaining users will bring structure and new ideas to the Discord server.This is not an attempt to replace this forum 1:1 and the general idea is that it is two different entities. But there are a lot of advantages Discord has I would like to note: chatrooms offer fast and direct communication and discussion, it is easy to share files and images (you get up to 8MB with the free account and up to 50MB with the voluntary subscription),emotes ,a great search feature, private instant messaging, voice and video calls, works from mobile and desktop(client or browser), many other communities to Discover.You can learn more about Discord ontheir website. Should you be interested about the technical side of things behind all of it I recommend the blog.To join you simply follow the link below. I would love to get a few users from the forum on there. I will also reach out to other communities about thermal imaging soon. You can target any questions at me directly or post in this thread. Also share suggestions here so we can discuss them. All opinions welcome.Invite link:https://discord.gg/JSFcJSd

author: Spirit532
author_rank: Frequent Contributor
timestamp: March 05, 2019, 07:32:50 pm
content: Just checking in - I created the server after talking with Vipitis, who suggested it.It would be nice to have a more generic active conversation going on in the chat, while the forum is more suited for structured topic-based discussion with thought-out answers.A few people have already joined, so I'm looking forward to see how many are interested.

author: Bud
author_rank: Super Contributor
timestamp: March 05, 2019, 09:02:04 pm
content: Discord is such a stupid name for a forum platform. Let's see what definition the Cambridge Dictionary gives to the word:QuoteMerriam Webster Dictionary:Quote

author: Spirit532
author_rank: Frequent Contributor
timestamp: March 05, 2019, 10:57:33 pm
content: Quote from: Bud on March 05, 2019, 09:02:04 pmSure, that doesn't stop it from having over 130 million users though.
Perfect Prime thermal camera - IR0018 or IR0019? - Page 1
Forum section: electronics / general

author: johnparker
author_rank: Newbie
timestamp: February 28, 2019, 03:25:36 am
content: Hey guys,I am currently in the market for a new thermal camera for my home inspection business. I recently played around with the IR0018 from PerfectPrime, which was owned by a friend of mine, and thought it was a pretty good quality camera for its price. It’s got a decent resolution, got some good features and is generally quite easy to use. I went on their website and saw the IR0019 (https://perfectprime.com/collections/thermal-imaging-camera/products/ir0019) which seems like the same as the IR0018 but with higher resolution (320 x 240). Has anyone here tried the IR0018 or IR0019? Is the difference in resolution worth the price difference? Would appreciate any advice.

author: Fraser
author_rank: Super Contributor
timestamp: February 28, 2019, 09:21:32 am
content: You may wish to read these threads.......https://www.eevblog.com/forum/thermal-imaging/chinese-ht-18-220x160-8-hz-handheld-thermal-camera/https://www.eevblog.com/forum/thermal-imaging/we-have-a-20-off-discount-code-for-hti-18-thermal-camera-ir-resolution-220x160/

author: mpaton
author_rank: Newbie
timestamp: March 05, 2019, 09:37:59 pm
content: Just thought I'd add that I just bought the HT-19 from Amazon. It's not branded as perfect prime, although they seem much the same. However, it's my first thermal imaging camera, so i really can't give you a valid comparison to any other one. I'm still learning how to use it and what it can and can't do.
RS700 Thermal Imaging Camera - Page 1
Forum section: electronics / general

author: apelly
author_rank: Unknown
timestamp: March 12, 2019, 01:19:37 am
content: Just saw a promo email for this: 80x80 @ 50Hzhttps://nz.rs-online.com/web/p/thermal-imaging-cameras/1365667/Couldn't find any info here. Has it been discussed and I missed it? 50Hz sounds interesting...

author: Vipitis
author_rank: Frequent Contributor
timestamp: March 12, 2019, 06:46:27 am
content: Very narrow fov, because it's windowed. The datasheet reveals there is a 160*120 model aswell.50hz is nice but not worth the asking price

author: Spirit532
author_rank: Frequent Contributor
timestamp: March 18, 2019, 12:32:18 am
content: Quote from: Vipitis on March 12, 2019, 06:46:27 amNo, it's this:https://www.ulis-ir.com/media/catalog/datasheet/micro80p.pdfThey do have a 160x120 version too.
FCC Flir cameras teardown - Page 1
Forum section: electronics / general

author: netpac
author_rank: Contributor
timestamp: March 04, 2019, 02:55:05 pm
content: here we go - Flir Thermal cameras teardown for FCC certificationhttps://fccid.io/ZLV

author: Fraser
author_rank: Super Contributor
timestamp: March 04, 2019, 03:12:31 pm
content: Yes, the FCC database can be an invaluable source of internal pictures when disassembling a camera. Sadly the technical details and schematics are normally redacted due to a confidentiality request. I have found mistakes where they are still present for an equipment thoughThe FCC database holds details of unit’s that contain RF emitters (Wi-FI, BT etc) so sadly if an equipment is not capable of containing such technology, you are unlikely to find it in this database.I also search for the manufacturers Patents on the Google Patent search engine. Patents often detail equipment design and technology notes that are very useful. There is a lot of useful Patent information held on thermal imaging cameras.Fraser
What's the difference of images between uncooled LWIR and cooled MWIR? - Page 1
Forum section: electronics / general

author: gucuv
author_rank: Newbie
timestamp: February 23, 2019, 06:53:30 am
content: Hi.Have anyone used both uncooled LWIR and cooled MWIR cameras? What's the main difference of real images between them to human eye? Are MWIR images just "cleaner" because of the higher sensitivity, or they do have different details because of the different spectrum range?Thanks.

author: Vipitis
author_rank: Frequent Contributor
timestamp: February 23, 2019, 01:39:57 pm
content: There are many differences on the camera side. But your question is only about the images.I suggest you just google image search for "MWIR vs LWIR" and can find many side by side images as well as articles and paper discussing it.From what I have seen, and I only own LWIR cameras, is that there are different bands in MWIR that correspond to the windows in the atmosphere. Meaning some MWIR images look vastly different on day vs on night because the spectrum they look at has low reflection and almost all transmission.There is also different penetration powers to each wavelengths, so some applications need to look through thick smoke from a burning house or just fog.

author: Fraser
author_rank: Super Contributor
timestamp: February 23, 2019, 02:36:09 pm
content: As Vipitis has stated, there is much on the Topic of MWIR Vs LWIR imaging to be found using google.In my experience, the images produced by a cooled MWIR camera are very clean with none of the noise common on microbolometer and BST cameras. The reason is simple. The cameras sensor array is being cooled to 77K in order to reduce its own internal noise to a level where it can perform as a sensitive thermal sensor array. At 77K the cooled sensors internal noise is far lower than that of a microbolometer sensor. The cooled sensor array is stabilised at 77K which is a distinct advantage over non temperature stabilised sensors and the cooled photon collection technology requires no FFC flag so you do not get the image freezing found on microbolometer camera that use an FFC flag.Now the killer on the hardware front though...... a cooled thermal camera that operates the sensor array at 77K uses either Liquid Nitrogen in a total loss system or a Stirling mechanical Cooler that has a finite life. If you buy a used Stirling Cooled camera you take the very real risk of the cooler either being at, or near the end of its life. Once the cooler loses its Helium Fill pressure or suffers excessive wear, you are basically stuck with a very expensive paperweight. The OEM may offer a cooler rebuild service but expect to pay between $7K and $15K for the rebuild plus calibration costs. (The sensor array is part of the cooler assembly)In most circumstances outside a lab or the military, uncooled LWIR thermal imaging cameras have developed to the point that their noise is no longer an issue. They have the distinct advantage over a Stirling Cooled camera that they do not contain what is effectively an operational life limiting mechanical device.Fraser
Get wavelength values for every pixel - Page 1
Forum section: electronics / general

author: xors01
author_rank: Newbie
timestamp: February 19, 2019, 08:14:41 pm
content: Hi,Recently I bought a thermal camera (DH-TPC-BF2120) with the purpose of building some software behind it and run my own analysis in a certain place.However, once with the camera on my hands I'm unable to access the "raw" matrix file with the wavelength values for each pixel, getting the colored picture with the hotter and colder areas is fun but not so useful in my case, so I'm not sure if that's something to do with my inability got get it, with the model if it doesn't allow that or with the whole Dahua brand.Any ideas?

author: Vipitis
author_rank: Frequent Contributor
timestamp: February 19, 2019, 08:41:04 pm
content: From the data sheet and product page, it looks like the camera is exactly what it is intend to be and nothing more. A low resolution security camera and not for any inspection purposes. You only get access to a upscaled video stream that gets compressed for streaming, no hint of raw data and not a word about radiometric access.You also won't get any wavelength information out of a radiometric camera meant for inspection or research, you get a temperature for each pixel based on some calculations form the sensor response and it's own temperature etc. LWIR is a very broad spectrum because radiation gets lower in power the longer the wavelength. If you are interested in spectroscopy, or even (far)infrared spectroscope - you will need to spend a lot more money. Even low pass, high pass(cut-) filters for the LWIR spectrum cost a few hundred.Good luck. It isn't unheard of badly designed firmware in network cameras that allow you to hack them(more like a network intrusion and less of a liberation of hidden features, but look into that for a chance).

author: xors01
author_rank: Newbie
timestamp: February 22, 2019, 06:43:56 pm
content: Thanks a lot for your reply Vipitis, that actually made me think that a feasible chance could be to ask the brand directly and so did I.They told me firmware modification on demand was possible, so I'm waiting for a quotation, but expensive as it might be it will always be cheaper than a new camera with that option enabled by default, so I'll just wait and see what their offer is. In the end the change is just a matter of removing the colour autoscale by a fixed one, with that I'll be able to calibrate it and use the thermal image to get the temperature per pixel.
Extracting Zoomed Image Data in .CSV Format from FLIR T620 - Page 1
Forum section: electronics / general

author: emd802
author_rank: Newbie
timestamp: February 20, 2019, 08:49:06 pm
content: Recently took some thermal images from a tower, which required me to zoom in a lot on my T620 (4X zoom; 120 X 160 pixels) for zoomed-in thermal data. However, when I post process the image into FLIR Tools to export into a .CSV, all it does convert the first 120 X 160 pixels into the .CSV file, instead of the pixels I was focused on the image.Has anyone had this problem before when converting ZOOMED FLIR .jpg files to .CSV files??Any information would be greatly appreciated.

author: eKretz
author_rank: Frequent Contributor
timestamp: February 20, 2019, 11:46:59 pm
content: That's likely all that it's going to do. It's digital zoom. My E40 is the same...

author: emd802
author_rank: Newbie
timestamp: February 21, 2019, 03:58:50 pm
content: Thank you, I shoulda known that...
Digital Zoom FLIR T620 Question - Page 1
Forum section: electronics / general

author: emd802
author_rank: Newbie
timestamp: February 21, 2019, 03:58:10 pm
content: Does anyone know how the digital zoom feature on the FLIR T620 works within the software. From what I can tell, the "zoomed" in image that is saved and displayed in FLIR Tools has gone through some sort of image processing to sharpen up the spatial resolution of the image. The raw image saved out in .CSV format is much coarser than what is seen in FLIR Tools.

author: railrun
author_rank: Regular Contributor
timestamp: February 21, 2019, 06:07:28 pm
content: Please upload a normal and a zoomed-in picture. Thanks

author: Fraser
author_rank: Super Contributor
timestamp: February 21, 2019, 06:32:32 pm
content: In my experience the industrial FLIR cameras that I have used always enhance the zoomed image. That is to say they take the reduced number of physical pixels in the zoomed image and interpolate them back up to the cameras full resolution. I did some tests on my PM695 switching between using a close up lens at 6" distance and a digital zoomed image from a greater distance without the close up lens. The FOV was approximately the same in both cases. I was surprised that I initially could not see the normally lower resolution, more pixelated, zoomed image. Both the close up lens and digital zoomed images looked similar. The reason was the zoomed image had been interpolated using a decent algorithm and actually looked very good.In addition, many FLIR industrial thermal cameras offer constantly variable zoom instead of just stepped X2, X4, X8 zoom. The Interpolation algorithm must be pretty sophisticated to cope with captured image to display resolution mismatches.Fraser
still looking for unwanted flir one g2, need some parts! - Page 1
Forum section: electronics / general

author: firehopper
author_rank: Frequent Contributor
timestamp: February 20, 2019, 11:56:44 pm
content: I need case back and battery. please let me know! thanks!

author: nsrmagazin
author_rank: Regular Contributor
timestamp: February 21, 2019, 06:41:00 am
content: Please give a better description. Some of us are not experts in all fields and its very hard to search the suppliers for parts that have no description.Look at this thread:https://www.eevblog.com/forum/thermal-imaging/flir-one-g2-battery-for-replacement/Batteries:http://www.cfcbazar.com/?s=402050+batteryConnector:https://www.molex.com/molex/products/family?key=picoezmate&channel=products&chanName=family&pageTitle=Introduction&parentKey=wire_to_board_connectors

author: Fraser
author_rank: Super Contributor
timestamp: February 23, 2019, 11:53:14 am
content: Fire hopper,Sadly you face a challenge obtaining these parts. I doubt FLIR will want to help as they consider the F1G2 a unit not worth repairing and so do exchanges under warranty. Outside warranty, the units are normally beyond economic repair.I used to buy dead units for around $100 and repair them for resale but there was just not enough margin when selling them to make it worth the effort. I still have 5 dead F1G2 units that I have not bothered to repair. I can sell you a complete non working unit for what I paid for it but the postage will be the issue. It would likely become uneconomic for you. Buying a used unit in your own country may be a better option it the F1G2 prices seem to be quite high.FraserFraser

author: firehopper
author_rank: Frequent Contributor
timestamp: February 24, 2019, 05:57:23 pm
content: I havent seen any f1g2's on ebay. it seems to be mostly the newer ones. As it is now, I cant use it. so I need a battery at the very least.. I was trying to get the same one.. but guess I could go for a replacement even if its smaller capacity.I just thought there would be more used broken ones than there are.

author: mahony
author_rank: Regular Contributor
timestamp: February 26, 2019, 08:43:12 pm
content: For some time there were lots of them on eBay. Now there is nothing basically. I bought 2 some time ago but already dispose all except the working Lepton cores. Sorry!But finding some replacement battery sounds doable as it is a simple single cell pack of quite low capacity most likely.