Is the pressure sensor output a pressure signal or an electrical signal?
Since it is a sensor, it is usually output voltage or current signal, so that the instrument can read.
We have 3 kinds of pressure sensors: 1, the output voltage signal (1-5V), also known as analog signals;2, the output current signal (4-20mA), also known as analog signals3 、 output 24V positive voltage, called switch signal
Generally speaking, there are three kinds of pressure sensors in the market now: the strain type, the voltage type and the charge typeIs the resistance strain type and varies linearly with the variation of the external pressure, through the acquisition system itself into a Wheatstone bridge voltage measurementVoltage signals can be directly entered into the instrument for measurementsThe charge output type pressure sensor needs to be converted into a voltage signal by a charge converter or a charge amplifier before it can be measured.At present, all data acquisition systems in the market only support voltage signal input in the final analysis
