Episode 1174 chip of the day instrumentation amplifier and application Be a Patron: / imsaiguy
Пікірлер: 34
@darinmorgan35202 жыл бұрын
when learning about Op-Amps I started by building a discreate op-amp on a bread board and played with it to gain a more intuitive understanding of its function. Math is not a substitution for hands on experience in the lab. I learn kinetically. Thank you for your instruction. I enjoy your method of teaching.
@davidharms35622 жыл бұрын
Great video! I have to say I agree with you, while I enjoy arduino’s like everyone else. This channel is great because it’s nice to get an understanding what’s happening at the component level. Thanks and keep it up! 👍🏻
@urlkrueger2 жыл бұрын
Many many years ago I was interested in learning electronics but it was so hard to make a change to a circuit and I got frustrated with probe cords getting all tangled up so I evolved into software design since it was so much easier to make a change and it didn't really cost anything to write a program. Now, after many many years of writing software I am tired of it and find the "simplicity" of hardware much more interesting and fun.
@fredmitchel12362 жыл бұрын
I loved the BB INA101...for all our load cells.IA Thanks IMSAI GUY On the same wavelength thats good...We used a 10 VDC reference was buffered to drive 10 VDC excitation for load cell, 350 ohm foil resistors...turned into 0-5 VDC for digital readout...0-500 lbs of force.. There was zero and Rg span pots for cal... Have a good weekend
@dang252725492 жыл бұрын
Thanks so much for such a valuable knowledge.👍
@HA7DN2 жыл бұрын
Just seeing it took me back to the middle of the semester, when we learned this stuff in 'Measurement theory'...
@michaelrtreat2 жыл бұрын
Like what you said about learning old school analog stuff.
@BrendaEM2 жыл бұрын
Lol! I have some of those. They are fairly accurate. They want a ball contact to elliminate angle from the force. I think that mine go to 20lbs. The blue cover was slid off on one. (They can also be read with an HX711 I2C breakout.) Keeping it analog, perhaps it could servo a motor.
@cornwallonline2 жыл бұрын
That brought back some memories! Back in the late 80's, I worked for Entran in the UK (micro piezoresistive transducers). My then boss and I developed a range of AD524 -based amps to go with the transducers. Just had a look to see if they are still around - £60 - 70 each these days!!! Mind you, here in the UK, you can just about buy a gallon of gas for that! Ok, I exaggerate, but give it a week or two 🤣🤣
@winsrrow81252 жыл бұрын
i thing the best is to learn really well how to work with simple transistors and diodes, after that u can buy an opamp if u want... Great video, the instrumentation amplifier its a really usefull chip.
@stamasd85002 жыл бұрын
I love instrumentation amps. I recently used an INA128 as preamp for a custom-built ribbon microphone.
@IMSAIGuy2 жыл бұрын
you might like this: kzbin.info/www/bejne/oHTQmXiigN2cpMU
@clems69892 жыл бұрын
Love these type of videos, thanks.
@miningbruno2 жыл бұрын
Out of curiosity, I went to check this part (the INA114AP specifically), and it is out of stock on Digikey, Mouser, and TME; Digikey says it will restock in 35 weeks, and Mouser states that the first restock will occur on the 13th of April 2023, with a factory lead time of 77 weeks.
@stamasd85002 жыл бұрын
A very similar part which I use, INA128, is in stock at both mouser and digi-key.
@hubercats2 жыл бұрын
Interesting video. Thanks for making and sharing it. I’m curious to know if instrumentation amps are appropriate as preamps for piezo-electric devices such as hydrophones. My intuition suggests not as I don’t think a piezo-electric crystal is a differential mode device but I’d appreciate any comments you might have on this notion. - Thanks again! - Jim
@tseckwr37832 жыл бұрын
"lbf" pounds (force) vs "lbm" (mass). thanks for the video. never easy to make especially if you have to start and stop and edit then upload...
@lespoils Жыл бұрын
Thanks !
@jstro-hobbytech2 жыл бұрын
You're right. I never use arduinos anymore incase I have to. Infact I donated over 30 of them to a local makerspace.
@Edisson.2 жыл бұрын
Interesting video 👍, I got an idea so I looked at the price and availability🤔so 114 availability zero and price in the Czech Republic😲for that I would buy some 75 pieces of NE555 😂 128 would be in stock, but the price is similar = No attempts 🤪 Nice day 🙂 Tom
@muhammadawais-m7k Жыл бұрын
for stress analysis in mechanical mechanism what do you think which amplifier is good
@andymouse2 жыл бұрын
Great video and yes Arduino is fantastic but as far as actual electronics goes you very quickly reach a learning plateau...cheers.
@clems69892 жыл бұрын
I enjoyed the ardruino platform. But it did get kind of boring quickly. Like after you build a couple circuuts, write a few programs. Your kind of done....
@andymouse2 жыл бұрын
@@clems6989 Yeah useful if an actual need comes up.
@samtzam37742 жыл бұрын
Corrections: The gain of this Instrumentation amplifiers given as G= 1+50k/Rg, so with 10Kohm you get gain 6 and not 2.5. The transducer is rated for 25 pounds not foot-pound, and this is the force that if applied on the transducer will provide 1mV/V at the output .
of course you are right about the gain. What makes it worse is, I did a video on that exact equation: kzbin.info/www/bejne/q3aWeXqArpWspKc
@urlkrueger2 жыл бұрын
Oooo, that was a gotcha on me. I guess I have never seen where force was labeled lb-f. Maybe we should just stick with metric ( insert smiley face here ).
@1shARyn32 жыл бұрын
@@urlkrueger standard nomenclature in the engineering and physics world
@t1d1002 жыл бұрын
Thanks for the video. Agreed; Arduino teaches you coding, not electrical engineering.
@mr1enrollment2 жыл бұрын
Consider defining cmr for your audience. Cheers from Ireland
@IMSAIGuy2 жыл бұрын
good idea for a video, I did cover that in other videos briefly but not as a separate topic.
@saturn5tonyАй бұрын
My thoughts about arduino? Follow someone else's drivers and Don't learn (barely) anything! Old school rules! Thanks for sharing 😊
@frankowalker46622 жыл бұрын
Arduino is fine if you want to learn how to program and use peripherals, or just build something quick and easy, but it's no good for learning about electronics.