Mystery object quiz - Page 1
Forum section: electronics / projects

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: April 21, 2014, 11:31:56 am
content: Can anyone guess what this is (yes, I do know).It isn't RF.The answer is a 4 letter word.

author: Richard Crowley
author_rank: Super Contributor
timestamp: April 21, 2014, 11:43:20 am
content: I think it is a piezoelectric ultrasonic acoustic transducer.I don't get the "4 letter" part?

author: amyk
author_rank: Super Contributor
timestamp: April 21, 2014, 11:49:59 am
content: Quote from: mikeselectricstuff on April 21, 2014, 11:31:56 am"Tube"? My second guess is the "base" of one.

author: PA0PBZ
author_rank: Super Contributor
timestamp: April 21, 2014, 11:57:09 am
content: Looks like some kind of filter or delay line, but 4 letters?

author: SeanB
author_rank: Super Contributor
timestamp: April 21, 2014, 12:03:56 pm
content: Do not know, but round ceramic with a silvered coat, cut into sections. Possibly a piezo driver, might even be a XY driver for an atomic force or STM microscope. Do not think it is a filter, round will mean it is an echo unit as the pulses will keep on going round till they decay, and there are way too many sections.

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2014, 12:09:37 pm
content: First thought was an oven, but with the IC as a possible clue, transmission line STUB?

author: Richard Crowley
author_rank: Super Contributor
timestamp: April 21, 2014, 12:09:59 pm
content: "PING"?

author: apelly
author_rank: Unknown
timestamp: April 21, 2014, 12:13:59 pm
content: horn?

author: VK5RC
author_rank: Unknown
timestamp: April 21, 2014, 12:19:20 pm
content: Part of CRT deflection assembly?Has an O ring type seal around the base, presume it is out of its working environment.Great quiz!

author: komet
author_rank: Unknown
timestamp: April 21, 2014, 12:22:31 pm
content: "item"Thanks for the prize.

author: peter.mitchell
author_rank: Super Contributor
timestamp: April 21, 2014, 12:26:17 pm
content: MEMS assembly or some sort?Slip Ring?

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2014, 12:31:59 pm
content: Coil?

author: han
author_rank: Frequent Contributor
timestamp: April 21, 2014, 12:55:51 pm
content: GYRO?

author: Recyclojunk64
author_rank: Contributor
timestamp: April 21, 2014, 01:47:15 pm
content: Tilt sensor? With a can around it partially filled with some liquid (hence the o-ring seal) that's partly conductive?

author: firewalker
author_rank: Super Contributor
timestamp: April 21, 2014, 02:05:44 pm
content: A plug?Alexander.

author: Wytnucls
author_rank: Super Contributor
timestamp: April 21, 2014, 02:27:53 pm
content: A lens...

author: Rigby
author_rank: Super Contributor
timestamp: April 21, 2014, 03:08:04 pm
content: It's a TI SN75176BP.Easy.

author: GiskardReventlov
author_rank: Frequent Contributor
timestamp: April 21, 2014, 03:29:37 pm
content: One is a chip.One is a coil.

author: tonyarkles
author_rank: Regular Contributor
timestamp: April 21, 2014, 06:06:41 pm
content: It looks like some kind of variable capacitor maybe?Is the RS485 line driver a hint at all? Or just for scale?

author: cosmos
author_rank: Regular Contributor
timestamp: April 21, 2014, 06:24:49 pm
content: excitation signals for some kind of rotary encoder or sensor?

author: AndyC_772
author_rank: Super Contributor
timestamp: April 21, 2014, 06:25:04 pm
content: Junk?

author: leppie
author_rank: Frequent Contributor
timestamp: April 21, 2014, 06:29:21 pm
content: Did you rip that out of that xray spectrometer's optics?

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: April 21, 2014, 08:05:47 pm
content: Quote from: han on April 21, 2014, 12:55:51 pmGot it!

author: tautech
author_rank: Super Contributor
timestamp: April 21, 2014, 08:09:18 pm
content: Now a tear dowm please

author: wiss
author_rank: Frequent Contributor
timestamp: April 21, 2014, 08:10:18 pm
content: Quote from: mikeselectricstuff on April 21, 2014, 08:05:47 pmHow?

author: PA0PBZ
author_rank: Super Contributor
timestamp: April 21, 2014, 08:11:00 pm
content: Quote from: tautech on April 21, 2014, 08:09:18 pmIt's pretty torn down already if you ask me

author: Richard Crowley
author_rank: Super Contributor
timestamp: April 21, 2014, 08:49:49 pm
content: Quote from: tautech on April 21, 2014, 08:09:18 pmThe mystery element appears to be monolithic. So "teardown" may amount to simply smashing it to bits.And it appears to be a bog-standard plug, leaving nothing but those lead-wires to cut.I suspect the top part of the enclosure would be a clue (perhaps a strong clue) to identifying it.If it were a horn, then my guess about a piezo transducer might be sgrengthend.Likewise, if it were some sort of sub-surface hull device (like for sonar, etc.)But the cylindrical shape remains mysterious.My next guess is: "gyro".It is a single-axis, ultrasonic gyroscope.Doh! I just noticed that han already guessed it! Congrats!

author: zapta
author_rank: Super Contributor
timestamp: April 21, 2014, 08:59:37 pm
content: It must be used in this system:

author: JeanF
author_rank: Regular Contributor
timestamp: April 21, 2014, 10:07:34 pm
content: thanks for the new vid ! A little issue with the link though. Pretty obvious fix for most of us, but here you are guys :Thanks Mike !!