Strain Gauge 101 - Part 1: Everything You (maybe) Wanted to Know About Load Cells

This video is the first in a series discussing the fundamentals of load cells and strain gauges and how to select the proper size one for your application. In this video, I introduce strain gauge 101 including how they work and where you can find them. I also demonstrate how a voltage divider works and the principles of the Wheatstone Bridge circuit.

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[chrisdrake]

I have a suggestion, if you don't mind - it would be awesome if you did a video that leaves out all the useless gumpf we do not need to know (more specifically, assumes we're not total n00bs) - for this topic, you only need to cover the *reason* for sizing (briefly), the need for amplification of small signals (related to sizing, for accuracy), and connecting an ADC - so maybe 2 minutes max.

[chrisdrake]

p.s. @18:29 - You know the HX711 is designed for load cells (tiny voltages) and the ADS1256 is not, right? You can't just use the ADS1256 - you'll need an analogue signal amplifier between it and load load cell, or else you'll only get a fraction of the ADC bits ever getting used. They're both 24bit by the way, so your "low resolution: comment isn't right. XH711=Slow, yes, but low-res, no.

[ridvanmelihsahin]

Hello Matt again, I watched this video now and my question is If I use ADS1256 with Teensy and my wheatstone bridge is a full bridge, can I calculate the torque of rotary, it's possible or not? I want to use a your previous video "Calibrating Torque Sensor". But I am not sure the your code is useful for me. But I like your representation and information. I am searching every day torque sensor. And If you are available this week could you please make a video for Rotary Torque Sensor with ADS1256 & Teensy. Thank you for helping and your videos