Use an Arduino Mega to measure the level of a liquid by means of a 4-20mA submersible pressure transducer. By connecting a resistor in series with the transducer, the voltage across the resistor can ...

Code for Arduino Network to read the output of a 4-20mA 25MPa pressure transducer and publish it as a JSON object over HTTP. The Arduino measures the voltage drop across a resistor placed in the ...

Abstract: In this article, a piezoelectric active proportional regulation valve with high differential pressure is proposed based on a bending transducer. The output flowrate of the valve can be ...