LDM

This video shows the first part of the teardown of a Countermeasures Infrared Sensor from Northrop Grumman.

[@SlocketSeven]

Why do i always have to find amazing channels like this from other people. The algorithm never points me to places like this.

[@marcorizza274]

Agreed!

[@guarenchafa4912]

Same here....

[@fairnut6418]

Algorithm wants you to binge watch random crap.

[@N00B283]

Well the algorithm just gave me this channel so it does work sometimes

[@procactus9109]

Yep, but almost half the time they have crap audio... If this device didn't look so interesting I would easily have given up within 10 seconds.. even then I could only make out about half of what was said.

[@AttilaAsztalos]

6:10 I suspect those "things" stuck to the top of the ceramic IC are a heater element and a temperature sensor, going to a regulation circuit, for keeping the ceramic IC underneath at a desired temperature; maybe it simply wasn't available in a low temperature tolerant version or maybe it contains something that needed a narrow temperature range to be precise enough for the purpose...

[@dale116dot7]

The potting ‘slime’ looks a lot like a silicone encapsulation gel we use in the automotive industry for under hood modules like ignition drivers in ignition coils. These teardowns are very interesting.

[@peepopalaber]

These are potted with way harder epoxy, this is a gel for vibration resistance.

[@buckstarchaser2376]

I was thinking "This looks like the potting gel that EEV blog showed on his reserve parachute automatic activator circuit teardown."

[@whatevernamegoeshere3644]

@@peepopalaber I forget what it's called but it's a potting gel that allows later serviceability usually. But here I have to agree, it's likely for absorbing shock

[@wwaldes]

no oczywiscie, to żadna nowość, to zwykła galareta z nóżek świńskich

[@wwaldes]

@@peepopalaber nie! nieprawda

[@thethoughtfield]

8:58 that's amazing, looks like a balanced full bridge VDR, resistor, I assume the optics focus the IR signature of missile and delivers an accurate differential value to the amplifiers for later processing, very clever!

[@airattoz]

I think you should definitely announce those "A few moments later" captions yourself. 😂

[@ronaldwanders]

🤣🤣🤣🤣

[@makostyniak1]

hahahahahahaha

[@johno9507]

When Bill Clinton and Airforce One came into Sydney in 1996 it was parked at the Qantas jet base where I worked, I was inspecting the IR jamers and I got a little too close and a large angry Airman chased me off. 😂🇦🇺

[@roryevans5032]

The mystery 4 wire part (at 6:20) by the transistor looks like a 4 wire temperture sensor, probably for compensation. Wrapping foil back over the top of is reccomended for cryo sensors and should increase accuracy at other temperatures too. The additional smaller sensor areas in the sensor package might be for offset compensation of the case temperature, functioning as blind pixels that are subtracted from the quadrant measurements to remove the thermal dependent offset.

[@lelabodemichel5162]

The two "sensors" inside the sensor capsule are connected to anything. I think they are used during production to test something, maybe the value of the square resistance.

[@MeatVision]

I don't understand electronics but your channel is incredible, great content

[@remaslaser9900]

dude, your channel and content is very amazing, thank you for your work y'all

[@miaudottk9080]

My guess is we're seeing something similar to a Wheatstone bridge measured on all 4 resistors with a big diode in center. In other words the light comes at an angle, is filtered to reject the unneeded part, and passes trough that round filter window, shining on part of the semiconductor inducing a voltage. The Wheatstone circuit will tell which part was illuminated, hence where the missile is coming from. The micro controller interprets the data and sends a 2D bearing (0-360 degree) to the control unit. If I were the enemy all I'd want to know is the characteristics of that filter.

[@Zodliness]

Thank you for uploading a genuinely interesting video with original content, it makes a refreshing change from the usual TikTok reaction videos.

[@-szega]

Very interesting. The optics look like an ultra-wide lens for large field coverage. The PSD surface is quite heavily distorted - I'm guessing that's for correcting both the distortion of the optics and the position non-linearity of the device itself.

[@PBnFlash]

The silicon disk is an electron cascade amplifier. So it must photo electric effect then get electron flow onto that resistive star shape

[@mrshyman1257]

​​@@PBnFlashЭто предположительно микроканальный фотоэлектронный умножитель.Такой ,как применяется электронно-оптических преобразователях 3 поколения для приборов ночного видения.Возможно на стороне прикладываемой к фоторезисторной матрице нанесен люминофор.

[@Cyrob-org]

Hello, magnifique techno !

[@msylvain59]

Thanks this a very unusual device !

[@RobertERider]

My new favorite channel.

[@canaksoy3987]

I was expecting the optics section to be disassembled too. It must contain spherical/unspherical lenses with optic filters in that section. May be the UV blind optic filter is in that section too.

[@alexwang007]

Fascinating teardown! The big sensor must be a position sensitive detector (PSD); it is very similar to a quadrant photodiode, except they don't have the micrometer gaps between the photocells. I'm very interested in the element in front of the sensor, could you perhaps take a deeper look at it next time?

[@lelabodemichel5162]

This is an image intensifier using 2 MCP plates. You can see the inside of this element in the video #252. You're right about the sensor, I plan to test it some day.

[@alexwang007]

@@lelabodemichel5162 woah impressive! The potting must be for the power supply then, I will watch the new video now. I am designing a throw back missile seeker that can actually track stuff, might be very educational. I got my hands on a cooled PbSe detector to do 3-5 um tracking ;)

[@dumbguy2y463]

@@lelabodemichel5162MCP’s!? Those are so expensive

[@TecKonstantin]

cool, those polyimide flex PCBs are not cheap, and all the ec2216 though :). This is the thermal control of the IC with the heater thing, very interesting. Maybe the Atmel is a TS68332VA16 but just a guess, hard to say footprint alsolookes different

[@alexandervonzoller-sakharo6386]

The large Atmel chip is a Digital Signal Processor Chip. The DIP-28 chip under all the heat sensors is a microcontroller with UVEPROM given that it has a windowed gold cap. The DIP-24 IC is probably a Programmable Logic Gate Array of some kind.

[@jinpingthebear110]

Luv you for the content & for the accent.

[@rsmrsm2000]

amazing

[@buckstarchaser2376]

It looks like the ring around the back of the IR sensor (with the black wire at each end, and a yellow wire about 2-3cm up from each end) is some kind of RF antenna. I suspect that it inducts a signal into the short wires on the other side of the ceramic board, and whatever reactive change in the sensor material - due to light from the environment - causes a phase shift in the signal that returns. The return paths are the 4 capacitors that are attached to the back of each quadrant, which block DC voltage from the bus (the resistors that are coming from that one line to all the connectors). I'm curious if the goofy wire coils and heavy (brass?) studs that go through the board are to keep the connection resistance as low as possible, so that it doesn't cause thermal 'ghosts'. It's an awful lot of expensive hardware to give the parameters: "Is a hotspot getting closer" and "Is a hotspot coming or going". It seems very easy to trick and defeat. I sure hope that tech this abhorrently outdated is not still being used; especially with only 2 stages of photo-multiplier plates. Meanwhile, in the '91 gulf war, relic battleships were detecting oil well fires (presumably on land) as missile launches (or alternately, they were anti-ship missiles... depending on which of the same-source stories you want to believe), and firing multi-million-dollar countermeasures in a desperate self defense, which triggered other ships to detect the decoys as threats, resulting in automated bullet-hosing of the decoys and the ships that launched them. Now THAT'S a high-dollar military budget in action, when you expend your munitions stores "just in case", while lesser militaries can't even detect those non-threats to misidentify them.

[@volvoman177]

Very interesting🎉

[@StreuB1]

Michal, at 3:45, the material you refer to as "silicone stuff" is a material called re-enterable encapsulant. Likely 3M Scotchcast, 3M High Gel, or 3M Gella.

[@mrshyman1257]

Скорей всего этом мягкий полиуретановый компаунд.

[@AlexanderGee]

Interesting design! Do you know the dates for this part? It seems they've been producing the AAR54 since the mid eighties. In some form or another.

[@gehardcev]

MANTAP 🌟👍

[@reedpetersen]

What year is this sensor from? Looks to be fairly old. Always interesting to see how they packaged electronics like this, especially when trying to remain concise. It seems like the basic operating principle is that the sensor filters most frequencies of light out except those which the missiles would emit, probably through a specific heat signature.

[@Digithaiz]

Supercool thanks

[@BGTech1]

That large chip must be some kind of custom cpu or fpga as indicated by its close proximity to the eprom

[@deang5622]

I doubt it's an FPGA, not in that package. ASIC perhaps.

[@atheroswiki]

Disassembly and reserve enginering

[@mrsaizo0000]

Would be very interesting to see that "CPU" part of it all. Do you have that as well?

[@MrPlytiger]

The last part looked like a photo multiplier tube, it seems to have a microchannel plate also.

[@testboga5991]

Nope, it's a filter and position sensitive detector.

[@brydenquirk1176]

Is it some kind of 4 channel photomultiplyer tube ? Or a big weird APD ?

[@kardanium]

Оптическая линза специальной конфигурации фокусирует приходящий луч в маленькую точку на поверхности детектора. В зависимости от угла приходящего луча по отношению к линзе, точка будет формироваться на том или ином участке детектора. Далее, её местоположение на детекторе вычисляется по соотношению сопротивлений между всеми выводами детектора. Информация о месте положения точки и информация с гироскопов самолета уже используются для вычисления азимута атаки. (Комментарий изменил, так как понял, что это бортовой инфракрасный детектор ракетной атаки)

[@JemmettOddJobber]

English Translation. Thank you @kardanium An optical lens of a special configuration focuses the incoming beam to a small point on the surface of the detector. Depending on the angle of the incoming beam in relation to the lens, a point will be formed on one or another part of the detector. Further, its location on the detector is calculated by the ratio of resistances between all detector outputs. The missile itself, receiving data from its gyroscope and from this homing head, calculates the location of the illuminated target relative to itself. After that, it calculates course errors and correction parameters and control signals to the rudder servos.

[@idopshik]

Опа, вот за это спасибо. А то сижу, голову ломаю, как же эта штука предупредит о ракете. А это система наведения.🎉

[@kardanium]

@@idopshik Да, я писал комментарий во время просмотра. Потом уже понял, что это детектор предупреждения о ракетной атаке. Но основной принцип работы с датчиком все равно остаётся прежним. Результирующий сигнал просто используется для отображения стороны, с которой летит ракета.

[@Nexalian_Gamer]

Quick question. Where do you buy this stuff? I'd like to buy some of these old machines here in the US

[@kamu38]

Can't be easy to find.

[@linuxuberuser]

Is this all from ebay?

[@yangni007]

It's so simple and smart ! It's based on a solar-blind UV image intensifier tube and a PSD. SB UV emitted by missile booster is detection by the UV tube and its position is measured by the PSD. The PSD should be made by selenium thin film ?

[@AlexanderGee]

The optics must be pretty expensive if they were working sum 280nm

[@yangni007]

@@AlexanderGee the most expensive should be the solar blind bandpass filter ! The UV tube is sensitive to visible light too, so you have to filter out these photons in order to detect only solar blind UV signals which are emitted by missile booster at launch stage.

[@user-kq8os5jq1t]

Круто.

[@user-pt7mz6oi3l]

По моему, у вас хороший английский. По крайней мере, я распознавал те слова что знал, притом, что я плохо знаю английский.

[@HeaanLasai]

If it says "surface may get hot" this could indicate it features heat pump cooling. Once you turn such a system off, the cold side will eventually experience a temperature spike. The average latent heat in the cooling loop is often high, and once you power down the pump, you get that heat back into the cold side. It's less of a problem in boiling-coolant systems like refrigerators, which is why your home freezer doesn't have an isolation valve. Wold be interesting to see the sensor's mounting, if it does in fact feature the plumbing you'd expect for external adiabatic cooling. One factor speaking for this is when you filmed down into the housing. At the back, you saw a grey pad. This pad looked similar to a thermal pad of unknown composition, pressed against the capacitors. This, in turn, could potentially indicate that it is indeed a simple lens & IR detector set to detect the incandescent hot microparticles in the exhaust plume of a missile's booster engine. Since jet engines don't have many microparticles, even though they can get to similar temperatures (though not quite the same), jet engines don't glow anywhere near as intensely in IR as a solid rocket booster does. This could perhaps allow it to discriminate between airbreathers and solid propellant. (Jet or rocket.) This may mean it could not discriminate between rockets and flares. If it can't discriminate, this would mean that a chasing aircraft launching one of its flares would cause this sensor to misinterpret that as a missile launch. The target aircraft would then launch multiple flares. This could potentially allow an attacking aircraft to deplete the target's flare magazine prior to launching an actual IR missile. But on the other hand, a flare is surprisingly small, and a missile's booster motor is absolutely MASSIVE. So perhaps there is enough of a difference in intensity to allow for discrimination between flares and rockets, I don't know. Hypothesis: If what you thought was an LCD aperture is indeed an LCD aperture, this could allow for rapid sampling of thermal output in watts, not adjusted for distance. Simply block the sensor until baseline reading. Then un-blind the sensor, and measure how quickly it reaches "detection". This will correspond to a given wattage at a given distance, and could allow for plotting a curve of the missile's thermal output. This could hypothetically allow the sensor to differentiate between boost phase (sudden, high output followed by rapid drop) and cruise (constant output slowly increasing as the distance decreases). This in turn perhaps allow the system to tell if a second weapon is launched, requiring additional countermeasures to achieve probable soft kill.

[@lelabodemichel5162]

There is actually a heater on the glass, it is the reason of this warning message.

[@HeaanLasai]

@@lelabodemichel5162 OK. I'm still curious how the system would react to blackbody radiation in the 1-3000 K range. A common incandescent lightbulb does reach those temperatures, and at close range, should emulate the output of a rocket motor at long range. I get if you don't want to test it, though.

[@appercumstock3017]

High tech!

[@TheoSmith249]

I wish you would have said, 'A few minutes later'. 😂

[@josepyzowski9107]

Yo pensé que nos iba a mostrar en modo " banco de pruebas " como funcionaba , así que todo esto es " cuestión de fe " !

[@nicolasriva7605]

C est un bon michmich👍👌

[@amandaholden1362]

where/how do you find these things…?

[@vladcompellius1295]

I think this thing is from the Paris flea market :)

[@brealistic3542]

Laser warning reciever for detecting laser tracking systems ? 🤔

[@miggi666]

thanks for very exclusive review. Is this thing pretty old right ? because I see very brutal microchips, elements and wires. Currently it might be 2-3 times more compact in term of schematics.

[@canaksoy3987]

Nope, because of the optics section you cannot make smaller IR MWS. By the way nowadays, ceramic chips, passives and rigid flex PCBs are same/similar to this unit.

[@Azzidos]

What is the gelatine like material at 7:25 and what is the purpose it serves?

[@KallePihlajasaari]

Probably encapsulates the High Voltage PSU for the mircochannel plate image intensifier that was in front of the position sensitive photodetector.

[@robertbezak7605]

oh, really good quality product, too bad they don't make such consumer products

[@lansdragon2542]

Очень интересный набор систем и устройств. Еще б был разбор как это все железно работает. Но судя по мозгам это оч интелеатуальный фотоумножитель. Пожалуй стоимостью в десяток штук баксов. Если не больше.

[@testboga5991]

I guess it's basically a wide-angle lens with a filter and a position sensitive detector behind it. The shape of the detector probably somehow compensates for lens effects. The filter is probably sensitive to a thermal signature that's emitted by starting missiles. The position sensitive detector helps to identify the direction and course of the missile, maybe to help blind it with a laser. In addition to the specific infrared range that it's sensitive too, it's probably also fairly selective in the time domain, ignoring fires etc. And only reacting to sudden flashes of IR.

[@testboga5991]

The sensor itself could well be a thermopile

[@paristo]

"The position sensitive detector helps to identify the direction and course of the missile, maybe to help blind it with a laser." "And only reacting to sudden flashes of IR." If I now understood correctly, those are countering each others. It can't be reacting to only sudden flashes of IR spectrum, if it as well can track the IR spectrum missile that's nose heats up by high speed even after the missile plume is gone after rocket motor shutoff. The Russian L-370 Vitebsk is system that uses four sensors similar to this to detect and track the IR signatures, the detection sensitivity is high enough to detect a SAM launch even from 200 km, and MANPADS size launch well past 10 km, but it will track and symbolize these launches only at 6-8 km ranges when it is considered a threat. So the system detects the launch, track the missile and warns the pilot when the missile is calculated by its trajectory to be a threat to aircraft. And then based to knowledge of launch range, missile time the system will time the release of chaff/flare at proper close range and then use IR lamp/laser turrets to fire a beam (IIRC about 2.5 degree cone) on the missile seeker to blind it, and the turret has as well a RF jammer to jam the SARH/ARH missiles seekers. The older system has only the fisheye lens to detect the short periods of flashes, that comes from launching a missile. As well when firing a cannon or explosion. So such old system gets triggered all the time and they can't track the threats so they don't know where missile is coming or what, and then reacts to them instantly. So if pilot has automatic flare On, the system will trigger flares release every time when a friendly tank at ground fire cannon or wingman launches rockets or missile. The triangulation of the threat can be done with two sensors, so you know the location that way.

[@user-di2mf2fn7n]

Clarify the use of the thermal battery, and safety from its danger.** What are the risks of reversing the polarity of a thermal battery?

[@sgtellioman]

I did this when I was a kid except I had no idea what I was doing or what I was looking at…

[@nicoras8803]

Comments are amazing

[@dilshadk1843]

sir where is you work

[@Vinlaell]

This, when the technician assigned to learn everything from captured hardware decides to make KZbin videos

[@Kim_Jong_Un_2023]

Where can I buy these in bulk order

[@floorpizza8074]

Just across your northern border.

[@fieur]

never know if hes talking english or french

[@konohaneoas6070]

QUAL O ANO DE FABRICAÇÃO?

[@Ag89q43G0HyA]

9:06 i see that it has been made on litography, i wonder HOW they discovered this tech?! this is certainly alien bluprints.

[@bellidoify]

El sensor parece un LDR

[@zainalhaque1316]

It is a rare conten on youtube...that i have ever seen...that is be a secret some country..

[@yetizero5563]

Le labo de Michel спасибо

[@eiandolo]

I bet it’s not going to work anymore…

[@user-ko2lk8rf8w]

Что это?

[@mjrFPV]

damn, 3rd world countries don't need to spy this days

[@marvinochieng6295]

All this beautiful technology for killing others

[@resetcoder]

or protecting?

[@marvinochieng6295]

@@resetcoderprotecting by killing

[@maximtem6717]

дуже схоже на тепловізійний датчик.

[@uawinwin]

Не похоже вообще, у тепловизора используют германиевую линзу. а в конце должна быть матрица. А это больше похоже на какойто диод

[@bbmindianhi-techsongs8741]

old time sersorte

[@tor7860]

Похоже на тепловизор

[@deepmaze1]

Sensors for this light band contain VERY DANGEROUS chemicals. Do not touch IR devices with bare hands!!

[@odissey2]

This one is likely a sapphire, which is absolutely safe. Other materials, like ZnSe is OK also, I had no any problems cutting or polishing it. However, manufacturing ZnSe in bulk is another story.

[@23lkjdfjsdlfj]

Tech needs to be constantly updated and improved or it and the company around it becomes obsolete. The design of this board is _ancient_. If this is an average indication of Northrop Grumman tech then this is looking like sweet sweet opportunity.

[@jetwrench2854]

400hz

[@Red-ic5zj]

У вас много различной электроники с содержанием золота на продажу в украину ?) Я мог бы покупать у вас испорченные компоненты в больших обьемах для добычи из них драгоценных металлов есть знакомые люди котрые могут привезти из франции в украину для переработки. Как с вами связаться обсудить данный вопрос ?

[@lelabodemichel5162]

I don’t care about gold, I hate people who recovers gold from these precious electronics.

[@Red-ic5zj]

@@lelabodemichel5162 неисправные детали использовать по назначению уже не получится ! Вот я и перерабатываю то что сломано .

[@lansdragon2542]

Даже автор согласен с тем что б вас послать.. афинажникам не место в электронике.

[@idopshik]

Всегда был в шоке от того, как они просто корёжат дорогую технику.

[@Red-ic5zj]

@@idopshik господа одно дело корежить приборы которые можно использовать а другое дело корежить детали от ракет которые кроме смерти ничего принести не могут и от агрегатов которые в нынешнее время уже не актуальны ,я на личном примере убедился когда продавал осциллограф с1-64 по стоимости драг металлов в нем и никто абсолютно из радиолюбителей не проявил никакого интереса к данному прибору ! Все уважающие себя электронщики давно перешли на более современные и малогабаритные образцы . Хранить как достояние общественности я не собираюсь потому как общественности вообще насрать на эти приборы и на то чтобы их сохранить , поэтому господа с уважением конечно к вашим талантам в электронике, но хватит здесь мудеть какие вы все правильные и достойные ! Все выживают как могут умеют и считают правильным .

[@matthieu573]

C'est dommage d'avoir quelqu'un de compétent en France qui aborde ces passionnants sujets en anglais.

[@Cyrob-org]

Hello, le pb c'est que le public intéressés est minime, alors si on se limite aux Français ça fera peu d'audience. Et puis faire de l'électronique sans Anglais de nos jours. NoWay. Une excellente occasion d'apprendre, c'est de l'Anglais facile :)

[@shavingsdiy]

И шо это за поебень ? Ниодного слова по русски....чёта разобрал-сломал и выбросил в мусорку,не рассказав что это и хде применяется(применимо) и чем может помочь😂😊

[@lansdragon2542]

Тебе ни чем не может помочь.. скудоумие заразно.

[@idopshik]

Говорит , микроволновка сломалась. Выковыривает драгметалы.

[@Serg777sx]

this is old militari device?

[@randomman057]

Yes and no. Northrup is currently marketing it for use on commercial planes. So, it'd old enough that the military likely has something newer/better and doesn't care and it's still good enough for Northrup to sell publicly.

[@Serg777sx]

@@randomman057 I recently drove through the fields where I live and collected electronic payments from missiles that were shot down. There are components from 1986, but somehow it flies. The crazy USSR could not make a normal car, but the missiles hit first of all. There's a lot of precious metal in these components.

[@idopshik]

​@@Serg777sxтеперь все чаще картон и алюминий с гераней собирать будешь. Так что губы не раскатывай сильно.

[@Serg777sx]

@@idopshik мне складывать уже некуда. А за то что вы желаете мне смерти, бог вам судья. Весь мир видит что происходит...

[@2003gratziani]

And?