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! 👍🏻
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.
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.
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
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 🤣🤣
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.
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.
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: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uE3HGJy0ynE.html
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 ).
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.
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
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....
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
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.
