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- Опубліковано 11 лип 2024
- This video shows the teardown, the reverse engineering and test of an EPR indicator used in a simulator for an airliner Airbus A300-600.
00:00 - Intro
01:24 - Teardown - Electromechanical assembly
03:48 - Electronic boards
08:24 - Schematic diagram from reverse engineering
09:31 - EPR test
About EPR:
skybrary.aero/articles/engine... - Наука та технологія
This is like engineering ASMR for me. Thank you, Michel!!!!
I have several EPR indicators SiADS type 2047-02-10 but unfortunately there are ASIC inside and there is no way to run it without documentation.... As well as plenty of other avionics devices from Soviet to Israel or USA/Europe. I am Ukrainian, but my English is fluent. Michel, if you're interested in, we can exchange the knowledge, I can show huge number of interesting stuff. As well I am running this equipment and have a big schematic database.
Excellent tear-down! I have found that almost every high-end simulator uses all DC servo loops that run from either 0-10 VDC or -10 to +10 VDC. And the construction is superb. All metal and coated glass with nothing looking sloppy or in any way different from the real indicator. The output power stage is very typical as well between vendors. I sure wish I could send you some instruments to reverse-engineer. You could keep them as well. I have a real 747-300 analog cockpit I had cut off of a real 747 aircraft and have been restoring it for years. More instruments than you can count. Both real and simulated instruments. And you English is just fine. I never have any problems understanding you.
I will be happy to reverse-engineer and test other indicators. I have a storage address in USA. You can contact me by email.
Fascinating! These on-board instruments are always a thing of beauty. They are also surprisingly complex inside, considering that outwardly they implement a relatively simple display function.
electronique et micromécanique !! beau travail !!
Thank you for the great video, I really find your videos fascinating.
Much love and respect from Detroit, Michigan!
Ayeee I’m from Rochester hills mi
New video ! Very nice my friend !
Chaîne vraiment intéressante. Comment vous procurez-vous tous ces equipements? Mais ce sera intéressant d'expliquer d'une manière générale à quoi sert l'équipement que vous démontez dans l'engin qui le reçoit avant de passer au schéma détaillé
Hello, simple et efficace !
You make very interesting and fun excellent videos! Highly appreciated for sure! I hope you’ll keep at it. It are devices you don’t see every day. Do you also repair or design? Tnx, 👍😊
I don't design stuffs for military or avionics, this is just a hobby for me. As a professional I design devices for general instrumentation and for nuclear power plants.
Quite complex inside for a simple display. Is that a 7 segment readout as well as analog?
I think you said in the last video that we might see a reverse engineering of the photodiode sensor. Is this still planned? I am looking forward to that!
Maybe it was a rhetorical remark? It seems Michel has already said everything that could be said about that sensor in the last video.
It is a small 16 pixel 1D array of photodiodes, with a pre-amplifier for each photodiode and an analog 16:1 multiplexer, to scan the pixels sequentially and output the signal into the image processing system. The sensor is used in the X-101 cruise missile.
@@cogoidI'll see if I can find the timestamp but it sounded to me like he was going to attempt some type of restoration/get a signal out of it. I recall him mentioning that he would make a separate video about that sensor.
EDIT: Check 2:16 in that video, it seems pretty clear to me.
I will do it in next video, but it won't be possible to test the sensor because the photo-diodes are disconnected. I will try to reconnect one ore more diodes using conductive glue but I am not sure that this will work.
@@cogoidWhen you say bond wires to the photodiodes, do you mean the tiny ones to the individual sensors, or to the golden 'pads' on the outside? If it's the first then I agree with you, the latter seems like it could be resolved with jumper wire though. files.catbox.moe/sq8p5e.jpg
@@lelabodemichel5162Good luck, and I look forward to the video regardless.😊
Nice work! I wonder if it’s possible to use a arduino to make one of those indicators work
Forget Arduino, use real electronic !!
I try@@fredericimbert5969
Almost certainly! With reverse engineering it is quite easier, but it can be done with level shifting through the original interface. You would need a deep knowledge of how the interface works though.
Для чего этот прибор?
Engine Pressure Ratio (EPR) is a means of measuring the amount of thrust being produced by a jet engine.
У совков было мало таких приборов, такого типа, единственное что знаю - УОД, указатель отношения давлений.
Ur ascent is a little hard to understand but good content 👍
Friend, after you get used to watching videos with the French accent you will get much better at it, it just takes a little practice 😸
zamzam water