You might even be using a strain gauge-based weighing transduce

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      You might even be using a strain-gauge weighing transducer-based machine every morning without even realizing it. It might look like this:

      Classic mechanical scales use a series of levers to distribute the applied weight and drive springs connected to the mechanical dial, while most digital models today use load cells based on multiple strain gauges to calculate your weight.

      When your foot is pressed once on the measuring board, the microcontroller will "wake up" and perform a zero-offset calibration of the strain gauge. Then, the digital display will show 0.0 kg (or pounds), and you can step on and weigh yourself.

      In a better digital bathroom scale, a weighing transducer based on a strain gauge is placed on each of the four corners of the scale. In fact, they are usually built into the "feet" of the scale. Two of the load cells are positioned in tension mode, and the other two are positioned in compression mode.

      When you step on the scale, the microcontroller takes its output and converts it to the total weight value in the selected unit of measurement, and displays that number on the gauge. Since strain gauges are sensors based on resistance and are affected by temperature, some models even use thermocouples to measure the ambient temperature and use it as a factor in the equation.

      Okay, that's interesting, but now let's take a look at weighing transducers for scientific measurement DAQ applications.

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