How Accelerometers Work - The Learning Circuit
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- เผยแพร่เมื่อ 5 มิ.ย. 2024
- In this video, Karen teaches about accelerometers. Accelerometers are electro-mechanical sensors used in an immeasurable number of devices today. Karen explains what acceleration is and how force comes into play when measuring it. Learn about how MEMS and piezoelectric accelerometers work, what sensitivity and measurable ranges you can find, and hear from the other element14 VCPs about where they use accelerometers in devices and projects: bit.ly/2Hz1cK6
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I worked in a vibration analysis company that used all types of accelerometers, piezoelectric where used for balancing shafts, and the MEMS where used in battery-operated wireless sensors. Very cool.
I didn't know much about gyroscopes before, but after I studied, I chose ERICCO gyroscopes, and the working ability is very good
Thanks, Karen! I don't remember hearing about the Gal unit before.
Airpods have optical sensors on each side that are able to detect when they are in your ear. The tapping function is measured by accelerometers.
IR Sensors actually. Airpods actually do have accelerometers and gyroscopes but they're primarily uses for spatial audio head tracking.
Hiya Karen, my current project with an Accelerometer is a dog collar/harness with WS2812b strip LEDS that show how and where the dog is moving along. Red=left side, green = right side and White in front, with changes in display as it moves.
That's cool. How does it change with movement?
@@maker_karen1785 The Sides, Red + Green Go up and down like a VU meter as his direction changes and accelerates, while the Front, White, adds rows of white across his chest and get brighter as he picks up speed. It is a big loop around his neck, one strip divided into groups, and I might add small side bars to extend the Red/Green
Always a good day when I see Karen has posted another video :)
No offense but your movies suck.
@@BariumCobaltNitrog3n Yeah, they are pretty bad
@@BariumCobaltNitrog3n When I make a movie I don't want director's credit for, I typically use the pseudonym Steven Spielberg
@@alansmithee183 And to be honest, I don't think I would recognize you on the street. Keep trying though!
So interesting, never new they were printed directly onto the board I expected something much more complex. I like your top 😁
Amazing, I hadn’t realised how they worked, I remember when gyros used to be super expensive, so amazing that they are on a chip! (That was many years ago!) in terms of project, I have always been interested in programming stability control in a drone or helicopter or even an rc car.
Thanx for the great vid!
Ammazing!
You drive me crazy with elektroniks
Good explanation
Thanks
Great video
Hi, im designing a head impact monitoring device and i would appreciate some information on what accelerometer is best to use?
Thanks a lot for your efforts and the great expalanation ❤❤
Actually i think of using it for patients who suddenly lose consciousness, so this sensor can detect the sudden falling and send a signal to someone to help
Than'x for interesting video
Hi Karen, this episode educates me as an engineer and with MEMS background. Your shows are super for dad-son learning. What are the tools that you used for the animated portions high lighting the cells in a table, the wave plot clipping, and the rotating coordinates?
Thank you! Our videos are made using the Adobe Suite. We edit in Premiere and animate using After Effects.
In wearables this could be used to attain positive, or correct, body positions: fix slouching, improve dance posture, public speaking problems, athletes stance and movement (track a pitcher or QB's throw) or monitor physical therapy progress in real time, sense a sleep driver, feedback for a fit app, detect an infant in vulnerable sleeping position, use for location finding, map tracking, direction for hikers, Alzheimer's patients, and more.
Read up on UWB. They are starting to implement EXACTLY what you commented :)
@@stevenrogersfineart4224 Please refresh my memory, UWB?
i have one dout mam that in phizo electric sensor as you said its force applied is directllyproportional to charge between plate and that charge flow is calculated by what circuit? is it contain any capacitor?
That was great.👍
how big voltage does CE620 piezoelectric accelerometer requires? do I need op-amp if I use it with esp32, I want to get infromattion about vibrations of the flat surface? what devices do I need to show the vibration informattions on the screen, except the CE620 piezoelectric accelerometer, screen and cabels, thank you very much I hope you will help me to fund the answer.
Can a direct piezoelectric effect be incorporated in a MEMS or are those two always seperate? :)
is the frequency of MEMS accelerator a LCR circuit resonant frequency?
What is a good book that I can buy that has different circuits that can be built. Interesting circuits not simple ones.
Thank you, I learnt a lot from that. I like how you explain, and you are always so happy, and so beautiful too!
Thank you for your clear explanation,but I think there's an error in your video.In 6:45,in the middle of the left photo,the"Y" accelerometer should be "Z" accelerometer,because only "Z" accelerometer needs this assymetry mess distribution.
Thank you so much ma'am, for lighting the bulb.
With lab-like clarification of accelerometer n their numerous micro apps. Jyssojuan
Looks like you only major in digital electronics so far, wish to see your tutorial on F.M transmitter and receiver(R.F)
7:38 I had to rewatch because the NES used light tracking NOT accelerometers. However, this appears to be a new version that plugs into laptops so maybe it's different :P
Cool
The duck hunt game, uses a light gun. in the arcade and home versions they use light sensors on a progressive strobe onscreen to determine what segment of the screen that was being pointed at, and not accelerometers. Although I'm not familiar with the specific one he was using in his segment, it strongly resembles the nintendo home light gun.
It works even simpler like that. Electronic pens had accurate time sensing like you describe. The NES gun is super dumb tech, it is just a photodiode with a lens. The screen turns black when you pull the trigger, with a small white square remaining on the place of the duck. So if the light drops on the photodiode in the gun you have missed, if it keeps seeing a bright spot you have a hit. With 2 birds there are 2 black frames in succession so it can tell which bird is hit. 4 birds would be near impossible as you will get very long black frames. That was probably the reason it wasn't used much. A game like Terminator or Commando would be impossible with the tech.
@@2kBofFun on that game, yeah, but on one's like hogan's ally, they actually cycled through to tell which one was hit. But yes, it was a focused photodiode to tell what part of the screen was lit.
Hi Karen 👍👍👍
I've watched vids about large and very complex mechanical gyroscopes like used for the moon landings and the Nazi V2 flying rockets. We now have this technology mass produced on a chip the size of half a grain of rice. Blows my tiny mind.
how did v2 do guidance? any vid you can recommend?
love math!!! God bless math
ty
I have some MPU6050 (MEMS). My target is to help students build a display for distance travelled, fuel consumed, tax (VAT), labor and total amount (USD) by means of arduino or NODE MCU ESP8266. Has somebody done this before? How to do it?
Gyroscope plz
I didn't know much about gyroscopes before, but after I studied, I chose ERICCO gyroscopes, and the working ability is very good
Before accelerometers they use to use mercury switches.
8:43 Wrong. That is a gyro sensor that sometimes work in pair with an acc.sensor. Acc. sensors are logical but gyro sensors are not. They are based on Faradays paradox, that even Einstein did not get and was unable to explain. In aircraft they were first based on rotating gyros, then lasers in a box the finally the invention of the modern gyro sensor, that is based on really weird science that even work in space.
Most of the use is for the gyroscope (see your own examples), not the accelerometer. How do they make that one on a tiny scale? Totally curious about that. And the NES gun is a BAD example. It has nothing to do with accelerometers nor gyroscopes. It is a photodiode that measures whether there is light at the position of the duck in the blackout frame you hardly see when you pull the trigger.
derivation ds/dt
Well... All the applications of "accelerometers" mentioned are actually GYROSCOPES. Technically they are frequently combined in one chip now days, yet again the video has to be educational, not misleading.
I use "Gyroscope" in my micro:bit tutorials because of that. Most libraries deliver X,Y,Z rotation, and then students start to treat it as acceleration in their code. They freak out. I now say the micro:bit has a gyroscope and the code challenges make way more sense. Maybe it is time for the micro:bit organisation to change the small print on the bit itself to orientation/direction sensor or something like that.
"PEW!"
noice
Please stop cutting out with interstitial content. I would prefer to watch for the content itself. Not edited movie flashes.
derivation ds/dt