Does the pressure sensor have to work with an exciting power source?
The pressure sensor requires a power supply. Pressure sensors generally have two wire system and three wire system, the two-wire power supply can be provided by instrument or module, and the three wire system can also be supplied by switching power supply or regulated power supply. The work principle and function are same.
The piezoelectric does not produce the charge, and the signal is adjusted to change the voltage.The resistance type is connected to an external power supply
General sensors require working power supplies.A pressure sensor consisting of a bridge connected resistance strain gauge, two terminals connected to an excitation source, and two terminals to an output voltage.
