hybridfree/eevblog-posts huggingface dataset:
CO2 beam expander as thermal telephoto lens...? - Page 1
Forum section: electronics / general

author: Ultrapurple
author_rank: Super Contributor
timestamp: September 09, 2020, 03:06:01 pm
content: I have done some playing with lasers over the years and have occasionally used a beam expander.Collimated laser beams aren't everquiteparallel and so they spread out, to a greater or lesser extent, with distance. This spread of the beam is known as divergence and it is usually expressed in milliradians (mrad), one-thousandth of a radian, or about 0.06°.The gas lasers I've used have had a divergence on the order of 1mrad (some rather better than that, but I'm only concerned with order-of-magnitude here).All other things being equal, if you expand the diameter of the beam by X times, you reduce the divergence by 1/X. This means that, at a distance, you end up with a smaller diameter beam.A kindly soul explained to me that if you use a telescope in reverse you end up with ... a beam expander! So a cheap plastic x3 or x5 toy telescope can give you a much-improved spot size when you're pointing it at a distant hillside or whatever. It worked like a charm and cost far less than lab-grade beam expanders. I used to saw toy binoculars into two so I got two beam expanders for the price of one!What has this got to do with thermal imaging, I hear asked by those who are still awake at this point. Well, a quick search on eBay for "CO2 beam expander" yielded beam expanders for 10.6µm CO2 lasers in powers from x2 to x8 available for prices in the region of GBP100.Looking at the photos, they appear to have ZnSe optics.Has anyone played with these to see if they will work as a telescope for a thermal camera?I don't expect performance to be brilliant but for many applications I suspect that, if it works, it would suffice. I have certainly found my x3 telescope useful in certain circumstances.The image below is taken from one of the ads for CO2 beam expanders and comes complete with the original dodgy spelling. (Their Engrish is far better than my Chinese so it's churlish to complain).

author: Uho
author_rank: Frequent Contributor
timestamp: September 10, 2020, 05:46:36 am
content: Hey. Several years ago I bought such a beam expander for experiments. In theory, it works like a telephoto lens. In practice, it has large image distortion and loss of sensitivity. The higher the magnification, the worse it works. Only the negative eyepiece lens is of value. If you replace the first lens with a large diameter lens, the lens works. I did x2.

author: Flukav
author_rank: Contributor
timestamp: September 10, 2020, 09:01:06 am
content: Very interesting, I indeed followed your refracting telescope made of ZnSe CO2 lenses times ago.By any chance, do you know the focal length of the concave lens to be found in such expander?

author: Uho
author_rank: Frequent Contributor
timestamp: September 10, 2020, 10:41:56 am
content: I do not remember exactly. About -25 mm.
How to check the serial number for Flir C2/C3 by software? - Page 1
Forum section: electronics / general

author: Jenny
author_rank: Contributor
timestamp: September 03, 2020, 01:16:11 pm
content: Can anyone help me?Is there a menu to show the SN info?Thanks!

author: Chanc3
author_rank: Frequent Contributor
timestamp: September 06, 2020, 10:03:33 am
content: Trying to remember off the top of my head. Go to settings menu, then hold the right key for 12 seconds, hidden menu should appear. Serial number should be in there. I think if you connect to FLIR tools you can also see the serial number.

author: Jenny
author_rank: Contributor
timestamp: September 06, 2020, 10:23:49 am
content: Thank you very much.
Another Cavity Blackbody project for Fraser - yes another one !  - Page 1
Forum section: electronics / general

author: Fraser
author_rank: Super Contributor
timestamp: September 04, 2020, 03:23:21 pm
content: As readers of my recent post will know, I purchased an IR Industries high temperature Cavity type Blackbody from the USA. Well I also found another that caught my eyeI saw an anonymous Electro-Optical Industries Cavity Blackbody head that looked to be compact and in nice condition. It appears to have a useful 1" cavity diameter rather than the much smaller cavities often found in the more contact head units.A close look at the auction pictures lead me to believe that the head was likely a "Special" custom product based upon the EOI "LS" series. The seller provided me with pictures of the calibration labels and it would appear that the head unit was checked for accuracy at specific temperature of 227C. The calibration labels also indicated that the head unit was part of an FPA test bench. This would appear to have come from a thermal FPA or camera manufacturer. Such units are relatively rare and expensive so I could not resist it as the asking price. It is currently en-route to me from the USA.This Blackbody will require a temperature controller as that is missing. I am not worried abut that though as a suitable controller can be made with a decent PWM drive PID. Many of the EOI controllers are overly complex fro my needs and are large 19" rack units. I will make a more portable controller unit.The pictures are from the auction.It seems Blackbodies are like buses for me....... nothing for ages .... and then two come along together !Fraser

author: Fraser
author_rank: Super Contributor
timestamp: September 04, 2020, 03:25:29 pm
content: EOI LS series datasheet
Abruzzo, Italy Hti-301 - Page 1
Forum section: electronics / general

author: alex871
author_rank: Regular Contributor
timestamp: August 30, 2020, 10:27:24 am
content: https://youtu.be/PHzTfYR0Nhk

author: Fraser
author_rank: Super Contributor
timestamp: August 30, 2020, 03:05:14 pm
content: If only the Xinfrared logo was not present. It really distracts the eye

author: Fraser
author_rank: Super Contributor
timestamp: August 30, 2020, 05:41:56 pm
content: Looking at your video, whilst very nice image quality, it is apparent that the ‘rolling shutter’ effect is very noticeable when the cameras is moving. That is a pity as the camera is performing pretty well in other respects.Fraser

author: zrq
author_rank: Frequent Contributor
timestamp: September 01, 2020, 08:23:51 pm
content: Quote from: Fraser on August 30, 2020, 05:41:56 pmI also find it deteriorates the performance of superresolution algorithms, especially when the temperature contrast is low. It's like a motion blur.
What non-fogging glue to re-seal Seek Thermal housing? - Page 1
Forum section: electronics / general

author: LarryR
author_rank: Contributor
timestamp: September 02, 2020, 03:40:21 pm
content: Hi,I was playing with the internal USB interface on my (original) Seek Thermal camera but now want to re-seal the housing.I want to use a non-fogging type glue so nothing will be deposited on the surface of the thermal sensor.Any ideas of something that is commonly available?I do not want to have to buy any type of industrial glue from Miller, Loctite, etcThanksLarry

author: eKretz
author_rank: Frequent Contributor
timestamp: September 03, 2020, 01:49:37 pm
content: I used the UV curing stuff on my FLIR E40 after removing the front lens to get a look at how it was constructed. I have removed it twice now, using the UV glue both times with no apparent fogging.

author: LarryR
author_rank: Contributor
timestamp: September 03, 2020, 05:00:09 pm
content: I have some LOCA (for LCD displays) which may work.I'll give it a try.Thanks!
seek reveal pro screen broken - Page 1
Forum section: electronics / general

author: wolfpack
author_rank: Newbie
timestamp: August 24, 2020, 01:19:11 pm
content: Hello together,on my seek reveal pro the screen broke.Does anyone have an idea what the name of the screen is and if I can buy it somewhere.Thanks for your help.Best wishes,Wolfpack

author: Fraser
author_rank: Super Contributor
timestamp: August 24, 2020, 04:49:05 pm
content: It is thankfully a standard screen. The part number on the rear will normally find listings for it (edit: in your case the number is not so helpful though) I found the details when looking for a screen in case I ever needed one. I think it will have to come from China though.I will look on my archive to see if I have the details your need.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 24, 2020, 04:56:32 pm
content: You need to source a panel part number TM024HDH71 made by Tianma.https://www.panelook.com/TM024HDH71_Tianma_2.4_LCM_overview_23563.htmlFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 24, 2020, 04:58:17 pm
content: http://www.lcd-source.com/Product_Overview_Tianma_TM024HDH71https://www.lcds-display.my/products/TM024HDH71_TIANMA_LCM_2.4-inch_240x320_parameter.htmlFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 24, 2020, 05:06:23 pm
content: Mouser sell this display but with a “49” suffix rather than the “71”. I have not discovered what the difference between the two versions would be. Cheap at £16 thoughThis is the display panel I was going to buy if the need had arisen whilst repairing a Reveal Pro FF unit.https://www.mouser.co.uk/ProductDetail/Tianma/TM024HDH49-00?qs=%2Fha2pyFaduidndI3KNgvuc6rKTqQN40CL1HXrUFgeMs%3Dhttps://www.panelook.com/TM024HDH49_Tianma_2.4_LCM_overview_24851.htmlFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 24, 2020, 05:15:43 pm
content: Datasheet for the “64” suffix panel in case it is of interest.https://datasheetspdf.com/pdf/1110300/TIANMA/TM024HDH64/1Fraser

author: wolfpack
author_rank: Newbie
timestamp: August 25, 2020, 04:45:39 pm
content: Hi Fraser,thank you for your efforts
"True" Thermal Camera vs Imaging IR Thermometer  - Page 1
Forum section: electronics / general

author: handydandyman
author_rank: Newbie
timestamp: August 17, 2020, 07:56:04 pm
content: Hi, newbie here.I'm looking for a thermal device for personal vehicle diagnostics.Mainly for looking at radiators, coolant hoses, HVAC, etcThis is for casual and infrequent use so Im looking at lower end devices:TG165-X, Flir One Pro/Pro LT, or Seek Compact/ProI've read the TG165 is not a true thermal camera, but more of a spot thermometerCan someone please explain the pro/cons of that for my use?Are the smartphone devices also not true thermal cameras?Thank you

author: DaJMasta
author_rank: Super Contributor
timestamp: August 17, 2020, 10:08:33 pm
content: It basically comes down to calibration. The sensor in the TG165 is the same kind as other thermal cameras, but it doesn't have the calibration values included to get accurate temperature data from every pixel. Instead, it measures temperature from just the center, but then the remaining pixels on the sensor will still give you consistent relative measurements and a normal thermal image. In FLIR cameras where this is optional, the option is usually called "radiometric", but these cameras and their standard inspection cameras will export images that are fully calibrated so you can read a temperature (within the specification of the sensor and with differences in emissivity and such) from any and every pixel on the screen - this also means you can just have the camera look for hotspots in software and point them out in places other than the center.This can count for a lot in some kinds of industrial and scientific applications, but for inspection purposes it probably isn't essential. Many less expensive cameras are configured like this and as mentioned, some can be optioned up for higher prices for the required calibration.

author: Lord of nothing
author_rank: Super Contributor
timestamp: August 20, 2020, 02:18:07 pm
content: HiIf you want to use it for "Home use" I orderd a Hand Held Camera from China who have a Flir Sensor in it.It called HT-19 and have a 320*240 Thermal Resolution. For my Home need affordable enough.LG

author: handydandyman
author_rank: Newbie
timestamp: August 21, 2020, 02:38:57 am
content: I ended up buying a Seek Compact XR.I just got it about 2 hours ago. I really like it so far. Very cool device!I'm still learning my way around the focus and the app features.
Req: Fir One Pro 3D Image - Page 1
Forum section: electronics / general

author: masterprince
author_rank: Newbie
timestamp: July 10, 2020, 01:41:11 am
content: Hi All,Hope all is well with youI am in need of the attached 3D model for my Flir One Pro or anything which can fit lens in. Appreciate if any one has it please upload itThanksHassan

author: rek
author_rank: Newbie
timestamp: August 19, 2020, 02:41:03 pm
content: I have Fusion 360 models of FLIR One tripod adapters I've designed, it should be trivial to add a 20mm lens mount to the front of them. I have one of those 20mm ZnSe lenses on order to work with, however I no longer have any FLIR Ones (sold them to fund an E4)I need to check my design history but I definitely have a holder for the Gen3 and pretty sure I have one for the Gen2 as well.This is how I had an F1G3 set up to take measurements over time. (There are holes in the bottom of the mount to access the power button and supply external power to the FLIR pod)
FLIR lepton 3.5 Radiometric available (5Units) - Page 1
Forum section: electronics / general

author: 123Dante123
author_rank: Newbie
timestamp: August 10, 2020, 01:15:20 pm
content: Good day,I bought a few units too much for my DiY projects of FLIR lepton 3.5 radiometric. If anyone is interested I am selling manufacture new lepton's here:https://www.ebay.de/itm/224112863037(5 units available)
CAT S62 soon: new public Lepton spec? - Page 1
Forum section: electronics / general

author: Vipitis
author_rank: Frequent Contributor
timestamp: July 28, 2020, 09:35:30 am
content: A few weeks ago, CATtheir upcoming S62 "Pro" phone. From that short video I was really skeptical: it looked like yet another Lepton based camera with all the issues: bad MSX alignment, nothing in focus, low framerate. However they still called out next gen thermal over and over again.So yesterday they put up anothernotice, confirming a Lepton and what It looks like the usual FLIR One app. As far as I know, theS61used a 160x120 lepton module with two gain modes - but there are conflicting reports. As FLIR themselves said it was the 80x60 kind and the MSX is high resolution.We know that there are multiplepublic Lepton specs, but all of them are "slow video". There is a 30hz version of the Lepton but that was never available to the public. Torrey Pines Logic used to sell rifle sights thatoperate at 30hzfor the 80x60 version. FLIR has a 160x120 Lepton that certainly not runs at 8hz for it's Black Hornet drone as well.As the full specs will be announced later today, I want to see what the answer is. It could likely just be another case of using higher reresolution visible images for MSX, but some of the shots shown in the video looks really good, while others did not.

author: chris_leyson
author_rank: Super Contributor
timestamp: July 28, 2020, 09:56:11 am
content: CAT website says Lepton 3.5

author: Vipitis
author_rank: Frequent Contributor
timestamp: July 28, 2020, 10:28:26 am
content: website didn't tell the specs when I wrote this, also found some press releases already. Seems to be an overall downgrade from the S61 (camera, battery, connectivity, features). I will test the ergonomics once I find it on a shelf somewhere before I decide to upgrade or go elsewhere.If they claim it's a better camera, than that means the S61 was just a 80x60 model?
Noob question about thermal-eye 4000m  - Page 1
Forum section: electronics / general

author: SpikeX77
author_rank: Newbie
timestamp: July 25, 2020, 11:45:34 pm
content: I recently got a thermal-eye 4000m, but just the pan/tilt camera. It was dusty/dirty, I've cleaned it. But I don't know how to power it or get the video out. Is it the same as the ones in a cadillac? A +, B -, C n D = video?
UNI-T UTi192M - Page 1
Forum section: electronics / general

author: graybeard
author_rank: Frequent Contributor
timestamp: July 24, 2020, 04:44:32 am
content: I was checking outUNI-T thermal imagerson thereAli Express storebecause I am interested in one for electronic trouble shooting and want one that will image individual components.It was not clear from any of the specifications if any of the thermal imagers they sell would focus close enough to be useful to see individual components so I contacted them. "George" quickly replied that none of the models they have in that store will work for component level troubleshooting. However they do make amanual focus model UTi192Mthat will work and sent me this image of it being used.So I messaged them back and said "theUTi192Mlooks interesting, how much is it?" George replied that it is $2700 + shipping, it is part of their industrial line. So I replied that was a bit beyond my budget for hobby use, and thanked him for his answers.In looking at the specs it has a 25 Hz update rate and that may be part of the elevated price.
i7  - Page 1
Forum section: electronics / general

author: ignat750
author_rank: Contributor
timestamp: July 09, 2020, 07:09:40 pm
content: The Mk2 i7 (the black one) uses a 320x240 microbolometer limited to 140x140...i7 black, кто то сделал 320х240???

author: ignat750
author_rank: Contributor
timestamp: July 09, 2020, 07:12:58 pm
content: please tell me where to download flirtool or the best analogue.

author: ignat750
author_rank: Contributor
timestamp: July 11, 2020, 07:40:55 pm
content: And is there a protection for the lens from particles, dust particles, sand, chips falling into it?For example, you look at the bearings of a motor, and grains of sand fly from it ...

author: ignat750
author_rank: Contributor
timestamp: July 12, 2020, 07:01:18 pm
content: 518F maximum ... no longer possible?

author: Uho
author_rank: Frequent Contributor
timestamp: July 13, 2020, 06:25:06 am
content: Quote from: ignat750 on July 11, 2020, 07:40:55 pmSimple and cheap protection is a thin film of polyethylene. I did mount the protection on e8. Or filter protection. It is more expensive but more efficient.

author: ignat750
author_rank: Contributor
timestamp: July 13, 2020, 07:32:07 am
content: Thanks!

author: Uho
author_rank: Frequent Contributor
timestamp: July 13, 2020, 07:40:30 am
content: The last photo is a macro lens holder for the Flir I7. Instead of a macro lens, you can put a filter. Then it will be a defense.

author: ignat750
author_rank: Contributor
timestamp: July 13, 2020, 08:04:50 am
content: I realized that this can be done independently. Thank.

author: ignat750
author_rank: Contributor
timestamp: July 13, 2020, 11:53:33 am
content: I see in i7, the resolution is 240x240. Please reset the original file with E8 320x240.

author: ignat750
author_rank: Contributor
timestamp: July 16, 2020, 06:55:49 am
content: Help. The device turned on -518F ... after switching on and off, turned on with a reading of -150F. After resetting to factory settings, it worked as it should ... What was that?

author: ignat750
author_rank: Contributor
timestamp: July 20, 2020, 04:24:49 pm
content: What is the problem? i7 turns on and freezes on 523F, forcibly turn it off and on, shows 334F ... And it helps to restore the operation of the device, only reset to factory settings ...

author: ignat750
author_rank: Contributor
timestamp: July 21, 2020, 04:03:13 am
content: HELP!
IRAY SDK for LT Modules - Page 1
Forum section: electronics / general

author: rmp94
author_rank: Newbie
timestamp: May 16, 2020, 02:05:00 am
content: I've been looking for the SDK to grab, view, analyze images from an IRAY LT640 thermal imager. I haven't been able to find any downloads or software page on Infiray's site:http://www.infiray.com/ltjx.html.Is there a place these are posted for download? I just assumed there would be something like FLIR Tools.

author: 1os
author_rank: Regular Contributor
timestamp: May 18, 2020, 05:56:01 pm
content: hi I want to ask a question off topic. I would like to know the cost of such a module thank you for your answer

author: 1os
author_rank: Regular Contributor
timestamp: May 18, 2020, 06:01:19 pm
content: the matrix may look like this

author: rmp94
author_rank: Newbie
timestamp: July 20, 2020, 10:57:42 pm
content: I'm not sure of the cost on these. Similar 640x512 models for FLIR long wave Tau 2 core are on the order of 9-10K USD.

author: Spirit532
author_rank: Frequent Contributor
timestamp: July 21, 2020, 12:44:03 am
content: Around $2500 for a 640x512 module with no lens.
Seek Shot Pro - live video - Page 1
Forum section: electronics / general

author: Hoich
author_rank: Newbie
timestamp: July 12, 2020, 03:51:03 pm
content: Hi, I'm new here, EEVblog seems to be the main forum where thermal camera users (with the engineering attitude 'can I break it) get together. Thus, I thought to share with you some findings of the Seek Shot Pro I have now since a week.To start with, I'm underwhelmed by that thermal camera. The price is still rather high and the quality of the images like back in the 90s. Since it's my first cam I am unsure whether I keep it or go for the FLIR C5 right away as long as I can bring the other one back.Still, I've tried to find out what you can do with it and by accident I've seen how stream the live feed to your PC (or phone).Essentially, the Seek Shot opens a hotspot you can connect to and then the SeekView mobile app could show the live image. Inside seems to run VLC, which opens the URL rtsp://192.168.100.1/stream0 . That could be used for live streaming, maybe even at night (not sure though how stable the sensor is if it's permanently on).In the SeekView app there is extra information on spot temperature readings etc., which is not part of the video stream. Maybe this is grabbed via HTTP as there is also a web server running on the Seek Shot (Pro) - and also a FTP and DNS.Via the FTP you can also get the images as JPEG. I have no idea where the radiometric image is stored or how to get it, but I really wonder why that info is not available.So maybe this helps others, I may still send it back (for the following reasons):* photo resolution is 90s (640x480)* manual alignment of photo and thermal image for SeekFusion hard to find in the menu - but it's always off depending on distance! So if it's not automatic it should be easily accessible* noisy image* interrupted video due to unpredictable shutter actions* no RAW image - just the fused one (how do I get this .hir file btw. -SeekView seems to list those, not the JPEGs as via FTP)* connection only as hotspot, not as WiFi client or Bluetooth* display is dull* touch screen hard to use if you are not a kid - always opening the wrong menus due to the small controlsStill, RTSP is nice and may be useful for some, and I may also have too high expectations.

author: Vipitis
author_rank: Frequent Contributor
timestamp: July 12, 2020, 05:47:26 pm
content: A FLIR C5 is worse in a lot of ways.The seek with the QVGA core is already pretty good resolution for that price. You will have to spend a lot more for VGA and beyond. Image quality is also a question of lens. What is the biggest issue to me is the awful framerate on low end devices.Shot is a odd product in some sense and has its issues. If you want to have an IP camera you can look into those products. But expect to pay more and no radiometric features.
It's Alive! - Page 1
Forum section: electronics / general

author: Elk-ECE56
author_rank: Contributor
timestamp: July 10, 2020, 03:48:08 am
content: So finally, I got the lens screws for the 2000as today and the core works perfect to my surprise! Here is a picture of me holding a cold water bottle. Thanks to everybody who helped me out in my last post
How do you know if thermal cam has "real time continuous hottest spot location"? - Page 1
Forum section: electronics / general

author: ocset
author_rank: Super Contributor
timestamp: June 22, 2020, 09:32:55 pm
content: Hi,Do you know how one can find out which thermal cameras on the market have “continuous, real time highest temperature location” feature?None of their datasheets tell if they do or don’t have this feature.This feature is pretty essential for electronics repair work (at least extremely useful) , and for general electronics thermal monitoring. This is because one does not have to hold one’s hand still………the camera will , in real-time, put a cross hair on the highest temperature spot in the view window, and also indicate exactly how hot that spot is….even if you are not holding the camera very still. This is extremely useful in electronics.One can of course, rig up a tripod, but in many lab environments, its not time-effective to keep doing this.No thermal camera on the market seems to say whether or not it has this feature.The "Dong Guan Xintai HT-04" does have this feature…however, this camera is battery only, and the batteries run out fast. (I actually converted an HT-04 to run off a 9V wall wart, but nearly ripped off a ribbon cable when doing this…it was quite an awkward job).As you can see..no mention of this most important feature.....https://www.amazon.co.uk/KKmoon-Infrared-Thermometer-Transformer-Maintenance/dp/B074QMHJYX?ref_=fsclp_pl_dp_3

author: Unknown
author_rank: Unknown
timestamp: July 05, 2020, 05:31:08 pm
content: My Seek Compact does that.

author: ocset
author_rank: Super Contributor
timestamp: July 07, 2020, 08:18:25 pm
content: Thanks the seek compact looks very good.https://www.thermal.com/compact-series.htmlI cant find a datasheet saying that it does do the "max temp spot hold" feature though....but the marketing image certainly seems to show itIt appears it can be connected to a laptop aswell.Actually It looks like you can lock on to a "certain" temperature, but not the maximum temperature in the window...thats a shame.https://www.thermal.com/uploads/1/0/1/3/101388544/compact_series_user_manual-web.pdf
Get radiometric frame from msx video - Page 1
Forum section: electronics / general

author: Effe
author_rank: Newbie
timestamp: July 07, 2020, 02:15:14 pm
content: Hi,Im using the parrot anafi thermal, the thermal camera is FLIR Lepton® 3.5I am able to split msx images in rgb and radiometric using python + exiftool, and I would like to achieve the same result, but with the msx videos.using ffmpeg i found these streams:Code:Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1440x1080 [SAR 1:1 DAR 4:3], 16140 kb/s, 9.08 fps, 9 tbr, 9 tbn, 18 tbc (default)Metadata:creation_time : 2020-07-02T14:14:58.000000Zhandler_name : DefaultVideoStream #0:1(eng): Data: none (mett / 0x7474656D), 8 kb/s (default)Metadata:creation_time : 2020-07-02T14:14:58.000000Zhandler_name : ParrotVideoMetadataStream #0:2(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1440x1080 [SAR 1:1 DAR 4:3], 3071 kb/s, 9.07 fps, 9 tbr, 9 tbn, 18 tbcMetadata:creation_time : 2020-07-02T14:14:58.000000Zhandler_name : ParrotThermalVideoStream #0:3(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 384 kb/s (default)Metadata:creation_time : 2020-07-02T14:14:58.000000Zhandler_name : DefaultAudioStream #0:4: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 240x180 [SAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 90k tbc (attached pic)I can get the RGB video stored in Stream #0:2 using this command:Code:ffmpeg -i .\P0720438.MP4 -map 0:2 -vcodec copy -an rgb.mp4But I have no idea how to get the radiometric thermal video, or better radiometric frame by frame.Has anyone had the same problem?I am looking for something in batch like ffmpeg/exiftool or python / c++ codeHere e test video:https://drive.google.com/file/d/1WGC1SOjeyMZpZ6uolob4USjI_u9EZZ3n/view?usp=sharing
2000AS lens screws  - Page 1
Forum section: electronics / general

author: Elk-ECE56
author_rank: Contributor
timestamp: July 01, 2020, 11:50:56 pm
content: Hi guys! It's been a while since I've been on the forum but I picked up a 2000as core off of ebay and have the lens from an older one I had, however I seem to have lost the screws that hold the lens to the coreI'm going to dig around my garage and look for them but I just wanted to know if anybody knew the size and what they're called so I could order some? If I remember correctly they were hex headed but it's been over a year since I used this camera but I reckon as a last resort if I knew the size I could order some, so I thought I'd ask here. Thanks in advance!

author: Bill W
author_rank: Super Contributor
timestamp: July 03, 2020, 02:26:22 pm
content: Yes, hex fitting in a 2-56 size.regardsBill

author: Fraser
author_rank: Super Contributor
timestamp: July 03, 2020, 02:36:00 pm
content: Bill,You never cease to amaze me with your extensive knowledgeI was going to check my units screws but realised the thread would be imperial UNF or UNC and I do not have imperial thread gauges.Fraser

author: Bill W
author_rank: Super Contributor
timestamp: July 03, 2020, 05:31:58 pm
content: Quote from: Fraser on July 03, 2020, 02:36:00 pmJust reading off the drawing...., mainly to warn those who bought my spare AS2000's to keep good care of the screw.It was bad enough trying to get US screws for the Raytheon kits when we were building cameras at EEV. The optic block mounting holes were tricky to get as well.Bill

author: jpanhalt
author_rank: Super Contributor
timestamp: July 03, 2020, 08:01:04 pm
content: I am not disagreeing with the 2-56 assignment; however,when dealing with optical devices in particular, one must be aware of the possibility of a Whitworth thread. If a standard 2-56 fits and feels OK, that is probably correct as 56 pitch is not a standard Whitworth pitch.In my experience, an imperial fastener in a Whitworth thread of the same pitch will feel loose. Wikipedia lists the standard Whitworth pitches. Scan down to where it mentions current uses:https://en.wikipedia.org/wiki/British_Standard_WhitworthOne can come across them in strange places. My Harbor Freight horizontal band saw uses a 1/2" screw as a pivot. It measures 1/2-12, which is a Whitworth pitch. There is no standard 12 pitch imperial screw. Don't lose those screws. There are 2 of them.

author: Elk-ECE56
author_rank: Contributor
timestamp: July 04, 2020, 01:31:40 am
content: Thank you so much! I thought I would never figure this out, I appreciate your help.
My seek compact pro has defect?  - Page 1
Forum section: electronics / general

author: cempelai
author_rank: Newbie
timestamp: June 12, 2020, 11:10:12 am
content: I just get my seek compact pro last week from amazon, i just noticed my camera sensor have permanent mark/spot in video and picture, can I claim warranty I'm so disturbing me after I noticed that.. I'm so disappointed

author: Fraser
author_rank: Super Contributor
timestamp: June 12, 2020, 11:21:09 am
content: Yes that would be described as a manufacturing defect. It is likely contamination of the sensor window. Request an exchange from Amazon. They are normally very good when problems occurFraser

author: Mechatrommer
author_rank: Super Contributor
timestamp: June 12, 2020, 11:35:05 am
content: Quote from: cempelai on June 12, 2020, 11:10:12 amthats the clear cut.. return it and get refund.

author: pauledd
author_rank: Regular Contributor
timestamp: June 12, 2020, 01:08:51 pm
content: I got my Compact Pro exchanged 3! times from Amazon because of bad image quality / way off temp readings, but finally the third device works great even two years later

author: cempelai
author_rank: Newbie
timestamp: June 25, 2020, 04:40:39 am
content: Just returned my seek compact pro, get full refund money back, thank you all, any suggestions for good 400usd thermal images?
FLIR Lepton 3 thermal camera module for sale - Page 1
Forum section: electronics / general

author: 123Dante123
author_rank: Newbie
timestamp: July 26, 2020, 03:35:34 pm
content: Anyone who were looking for FLIR lepton 3, I have good news this one is for sale:https://www.ebay.co.uk/itm/224094813783
New Seek Reveal Case for get full potential of this cam  - Page 1
Forum section: electronics / general

author: LogoXXL
author_rank: Contributor
timestamp: June 16, 2020, 01:00:09 pm
content: hi friend,i decide to share my first project with seek thermal Reveal Pro. My first impression after getting this device in the past was.... not good. I start my own project and you can get the results right now.The cam has a high potential for getting good pictures, but the lens is the very bad.... If you change the case and the lens, you see a other world :-)Feel free to ask me for DXF/DWG/3DM/STL files....To use this case you need two additional parts (ok three with new lens)1. polarization glas to make the screen darker2. eye lens to compensize near view to the screenAll i can support and my prices can be very different than ebayEnjoy!

author: yag-freak
author_rank: Newbie
timestamp: June 22, 2020, 08:40:19 pm
content: HiThe front part of the seek is made from metal and also used for cooling the system or at least get a thermal equilibrium faster.Did you experience some sort of thermal problems with your setup?Steffen

author: yag-freak
author_rank: Newbie
timestamp: June 22, 2020, 08:53:27 pm
content: I just saw, that the metal part is the heatsink for the LED.Still: Is your setup stable during prolonged use?Steffen

author: LogoXXL
author_rank: Contributor
timestamp: June 22, 2020, 09:03:27 pm
content: Hi,i use this Reveal Pro now for 3 Years and have never problems with Heat cooling. The sensor not attach the metal only the plastik holder around the sensor body...

author: yag-freak
author_rank: Newbie
timestamp: June 22, 2020, 09:27:43 pm
content: Do you have a measurement of the threads of the objective?Or a hint for suitable objectives?
Looking for Flir Lepton 3.5 thermal camera module  - Page 1
Forum section: electronics / general

author: 123Dante123
author_rank: Newbie
timestamp: June 19, 2020, 01:09:14 pm
content: Hello everyone! At the moment I am making a project of accurately detecting elevated human body temperature using raspberry pi 4 and TE-Q1 Plus. Instead of the TE camera, I want to try other cheaper thermal cameras. I want to get a thermal camera of no more than 50mK. The best, in my opinion, would be Lepton 3.5 module for the price. The problem is that it's not in the stock at the moment anywhere in Europe I contacted a few websites and they said they will have Lepton just at the end of July. So if anyone has it and is not using please consider it for selling to me. Feel free to respond if you know any good price <50mK thermal cameras.

author: Uho
author_rank: Frequent Contributor
timestamp: June 21, 2020, 04:49:59 am
content: I have a FLIR One 2 thermal imager board. I can sell.https://www.eevblog.com/forum/buysellwanted/i-want-to-change-flir-lepton-to-ssd-or-sell-it/msg2801812/#msg2801812

author: Uho
author_rank: Frequent Contributor
timestamp: June 21, 2020, 07:47:27 pm
content: I can not send you a letter.PM could not be sent to '123Dante123' as their inbox is full!
Fast Low resolution imaging - Page 1
Forum section: electronics / general

author: AkiTaiyo
author_rank: Contributor
timestamp: June 19, 2020, 01:34:43 pm
content: Been playing with a Heimann 32x32 HTPA thermopile array, and have had some success with getting high speed images out.There’s a setting for adjusting the frequency and resolution, which if you tweak them you can get the readout very fast! On my test I use a micro to poll the sensor to see if a new frame is ready, then when its available download the A+B segments (the readout is strange!), then trigger a new measurement as soon as the readout is complete.I can get approximately 170Hz out of the sensor, which isn’t bad (32x8 res)! Of course because of the weird readout, if you want the full frame, then you actually have to perform 4 measurements, which reduces the framerate and adds a lot of tearing..The image attached shows the I2C readout with a measurement from start of polling of one frame to the start of polling for the next.The calibration build into the sensor becomes garbage though so you need to do your own cal, which is easy enough to do roughly provided the module doesn't change temperature too much.I suspect I can go faster but my little EFM32 really doesn't like the I2C running much above 1MHz, also the waveforms on the I2C are starting to look horrible, even though the pull ups are probably as low as I really want to go.They do an SPI version, I'd like to get hold of one to see how fast its possible to get data out of it without the I2C limitation.

author: Fraser
author_rank: Super Contributor
timestamp: June 19, 2020, 04:27:22 pm
content: Do you consider the frequency response of the thermopile pixels to be a limitation in your tests ? I would expect the thermal response coefficient of their design to dictate the maximum useable sample rate, even if the ROIC can operate at a faster rate.A black body equipped with a rotary shutter wheel would help test the true maximum response rate of the pixels.Fraser

author: bap2703
author_rank: Regular Contributor
timestamp: June 19, 2020, 05:19:59 pm
content: Their older generation 32x31 was "8ms for Xenon or about 50ms for vacuum".https://www.ama-science.org/proceedings/download/Zmp1Their 32x32 appears here with an indication about its speed.https://www.ama-science.org/proceedings/download/ZGxmBD==Their 80x64 is said here to have a 4ms time constant.http://www.sensolution.co.kr/Datasheets/HTPA80x64dR1L10_0k7(Hi)S_Rev13_Datasheet.pdfBut their 16x4 is 0.8 ms for example.https://www.heimannsensor.com/Datasheets/Datasheet_HTPA_16x4L3_6eA_R08.pdfI guess they decided the user doesn't need to now to pixel speed for their 32x32d.
Anyone come across this MobIR phone dongle? - Page 1
Forum section: electronics / general

author: alexwhittemore
author_rank: Frequent Contributor
timestamp: June 03, 2020, 10:15:42 pm
content: I was just looking for a thermal app in the iOS App Store and ended up stumbling across this new MobIR device on Amazon:https://smile.amazon.com/Anti-peep-Temperature-Detection-Camcorder-Smartphone/dp/B083SPBLLW?sa-no-redirect=1&th=1It looks like the amazon listing is shipped from China, and it looks like the app may itself only exist in chinese at the moment. And the resolution seems pretty crappy at only 120x90. BUT all that aside, it claims to be 25Hz, and I don't think I've ever come across anyone selling a 25Hz imager for USD $300.

author: Fraser
author_rank: Super Contributor
timestamp: June 03, 2020, 10:24:51 pm
content: https://pdf.directindustry.com/pdf/guide-sensmart/mobir-air-thermal-imaging-camera-smartphone/213873-882249-_2.html

author: Fraser
author_rank: Super Contributor
timestamp: June 03, 2020, 10:26:43 pm
content: CE approved model available.https://nightoptics.en.made-in-china.com/product/SBknHyZPlcUo/China-Ce-Approved-Smartphone-Thermal-Camera-for-HVAC-and-Building-Inspection-120X90-25Hz.html

author: Fraser
author_rank: Super Contributor
timestamp: June 03, 2020, 10:28:15 pm
content: Wow! .... take a look at the MobIR Pro !It is like something James Bond would have in his arsenalA main unit with various deployment options..... I like this ideahttps://ifworlddesignguide.com/entry/272394-mobir-pro-thermal-imaging-cameraFraser

author: Fraser
author_rank: Super Contributor
timestamp: June 03, 2020, 10:34:28 pm
content: https://www.guideir.com/product/detail/id/32.html

author: Fraser
author_rank: Super Contributor
timestamp: June 03, 2020, 10:38:43 pm
content: CES 2020https://www.guideinfrared.com/news/detail/id/693.html

author: alexwhittemore
author_rank: Frequent Contributor
timestamp: June 04, 2020, 12:53:01 am
content: Quote from: Fraser on June 03, 2020, 10:28:15 pmYeah - this is the model that the app has in cartoon form in its setup instructions screenshot on the app store. Looks pretty serious, but I have no idea how to find pricing or (detailed) specs.EDIT: And the T-series looks like exactly what I want to buy right now for quick use, though I assume it'd be in the $400 or 500 range based on the $300 phone dongle with the same core, so probably too expensive for that slot.

author: tonykids
author_rank: Regular Contributor
timestamp: June 04, 2020, 01:26:41 am
content: MobIR Air by GUIDE from ChinaThe price is about $180 now,but I remember it was $140 several months ago

author: alexwhittemore
author_rank: Frequent Contributor
timestamp: June 04, 2020, 02:13:21 pm
content: Quote from: tonykids on June 04, 2020, 01:26:41 amWhere is it $180? I can't find it available for purchase (in the US, at least) anywhere but Amazon for $299, shipped from china.

author: tonykids
author_rank: Regular Contributor
timestamp: June 04, 2020, 03:21:27 pm
content: Quote from: alexwhittemore on June 04, 2020, 02:13:21 pmAlmost every online shop in Chinahttps://detail.1688.com/offer/608100375288.htmlhttps://item.jd.com/60306316852.html
A Very Basic Low Sensitivity 4K Infrared Thermal Camera From Any Smartphone ! - Page 1
Forum section: electronics / general

author: Kedar264
author_rank: Regular Contributor
timestamp: May 27, 2020, 01:46:29 pm
content: Every Camera Sensor has ability to see Infrared i.e. Thermal Part of The Light but Infrared Blocking Filter Inside Digital Cameras protects The CCD Sensor From burning with high energy Infrared light such as sunlight. Now, If We remove the blocking Infrared Filter the camera can also able to see Infrared Part of The Spectrum of Light that is the night vision camera. Which Is Pretty Cool Because After This Hack You Can See Hot Objects in Infrared camera With this Camera Glowing More As They Emit More Infrared Energy & Many Other Things You Can Do Like See Through Some Clothes , Black Objects Which Takes Tear down To a Next Level and use this as camera as infrared camera and night vision camera. aka camera infrarouge.As a hobbyist ,considering i paid 5-10 $ for smartphone camera module and lens parts ,its something i can get my handson + it captures 4K and 240 fps slomo !Please let me know your ideas to improve this camera , Thanks.# Here's the video showing details on how to remove ir filter from any smartphone camerahttps://youtu.be/S_otDBRFmGI# Also check out the amazing results of the converted infrared camerahttps://youtu.be/Z1WrbujPYuE

author: Vipitis
author_rank: Frequent Contributor
timestamp: May 27, 2020, 02:35:27 pm
content: while it is *cool* it is not a thermal camera. technically any camera is a thermal camera, but we call thermal cameras those that see blackbody radiation in the LWIR or MWIR. a truly passive camera.Your video is just clickbaiting at times. You seem to know enough to make a proper educational video about the topic but chose not to.

author: karamba
author_rank: Contributor
timestamp: May 29, 2020, 09:55:35 pm
content: Quote from: Vipitis on May 27, 2020, 02:35:27 pmNo need to be rude, you are always welcome to go and make a better video with a true cool camera.

author: Ultrapurple
author_rank: Super Contributor
timestamp: June 03, 2020, 03:21:16 pm
content: As has been mentioned, itispossible for a normal CMOS-type camera to see theshort wavelengthradiation fromvery hotitems that aren't hot enough to beincandescentand thus be visible to the naked eye. Here's a backyard example.I had been burning some wood waste in my garden brazier earlier in the day, only leaving it after the flames had died down. Some hours later, well after dark, I was surprised to see it apparently glowing brightly on my security camera. It's just a cheap visible / near-IR auto-switch camera, nothing special, but it saw the heat from the brazier. Virtually nothing was visible to the naked eye; it wasn't even glowing dim-red. This implies it was cooler than theDraper Point(~525°C, 977°F); as has been noted elsewhere, anything over about 400°C begins to emit a small amount of energy in the wavelengths that can be detected by silicon sensors (ie about 1.1µm or 1100nm).
Seek Thermal Compact (Pro) not working on incompatible Android - Page 1
Forum section: electronics / general

author: tony359
author_rank: Frequent Contributor
timestamp: June 12, 2020, 06:48:08 pm
content: Hi there,My Seek Thermal Compact Pro is not recognised on my Xiaomi Android mobile - which indeed is not listed as a compatible device on Seek website. I kind of find weird that some mobile won't allow this USB device to work and I was trying to find out whether someone has found a solution.It does work on my old Sony Xperia tablet - via an extension cable as Seek didn't bother to add a simple "rotate" feature for those "incompatible" devices where the picture ends up with the wrong rotation.Any help?Thanks!Tony

author: Fraser
author_rank: Super Contributor
timestamp: June 12, 2020, 07:43:38 pm
content: Some Important information is missing from your question.....Exact Model of mobile phone ?Android Version running on Mobile Phone ?Is mobile phone stated as being OTG capable ?Does the Seek Thermal Application install and run ?

author: tony359
author_rank: Frequent Contributor
timestamp: June 12, 2020, 07:58:55 pm
content: You are an absolute star!! OTG disables itself after 10 minutes of inactivity on my mobile! I went in settings, enabled it and it's now working! Shame on Seek support, they just dismissed my query with "it's not compatible".Thank you a lot!!

author: Fraser
author_rank: Super Contributor
timestamp: June 12, 2020, 09:46:07 pm
content: Good newsYou were fortunate. Some people have found that their mobile phone does not support OTG and they are truly stuck. I am pleased that yours was just sleepingFraser
Identify Flir Thermacam connector - Page 1
Forum section: electronics / general

author: kosomsk
author_rank: Regular Contributor
timestamp: May 30, 2020, 10:50:26 am
content: Hi AllWho can help me with indentify this connectors (need marking of male part)

author: railrun
author_rank: Regular Contributor
timestamp: May 30, 2020, 11:19:24 am
content: Looks like LEMO connectorsCould be:FGG.1B.310FGG.1B.305FGG.1B.307But please double-check

author: Fraser
author_rank: Super Contributor
timestamp: May 30, 2020, 11:23:37 am
content: Lemo connectors on a FLIR PM Series camera.From memory ( but do check data sheets to be certain)Power/Video/RS232 is 2B-310Mic/headset is 0B-305video out is 0B-307Lemo catalogue is available on line ..... they are expensive ! I do hold stock of the PM series connectors however.Pinout for all three connectors appears in the cameras user manual.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: May 30, 2020, 12:10:50 pm
content: I just dug our the three plugs to confirm identity.They are:10 pin LEMO FGG 2B-3107 pin LEMO FGG 0B-3075 pin LEMO FGG 0B-305I attach pictures.The FGG 2B-310 in particular can be very expensive.Fraser

author: kosomsk
author_rank: Regular Contributor
timestamp: May 30, 2020, 01:01:35 pm
content: Thanks for help-------------------------------Omg10 pin LEMO FGG 2B-310 $104,79 4-5 weeks7 pin LEMO FGG 0B-307 $46,34 4-5 weeks5 pin LEMO FGG 0B-305 $42,20 4-5 weeks (not interesting for me)151$ for two connectorWho know cheapest analogs, may be from Ali

author: Fraser
author_rank: Super Contributor
timestamp: May 30, 2020, 01:03:14 pm
content: I can do them much cheaperPM me but you need a way to pay me that we can both use.Fraser

author: railrun
author_rank: Regular Contributor
timestamp: May 30, 2020, 02:03:18 pm
content: Check it on ebay. Sometimes you can buy connectors already with a piece of cable. It‘s much easier this way