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Hey everyone, I’m currently working on an electromagnetic flow meter project and have finished the assembly, including the electrodes and Faraday cage. Now, Iām moving on to the circuitry, but Iām facing some challenges. The signals from the electrodes are in the mV range (or smaller), so Iāll need an amplifier circuit for proper signal processing. Additionally, Iām looking for a suitable H-bridge or similar setup for controlling the electromagnets.
As a second-year undergraduate student, I donāt have enough experience to confidently move forward with the design. Could anyone recommend resources or guidance on how to approach the circuit design for these requirements?
Hello @accur4te for the signals you can use an op amp to get a boosted signal like you said. For the H-bridge, what is the voltage and current is needed for to power your magnet?
This is a good resource on the explanation and circuit also that you can potential use with H-Bridge. talks about shows a basic process control system that uses a flow meter and actuator to control liquid flow rate, various approaches you and use and some circuit diagram. https://www.analog.com/en/resources/analog-dialogue/articles/electromagnetic-flow-meters-achieve-high-accuracy.html
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