Working principle of pressure transmitter

- Jul 15, 2020-

When the pressure acts directly on the surface of the measuring diaphragm, causing a slight deformation of the diaphragm, the high-precision circuit on the measuring diaphragm transforms this tiny deformation into a highly linear voltage

When the pressure acts directly on the surface of the measuring diaphragm, causing a slight deformation of the diaphragm, the high-precision circuit on the measuring diaphragm transforms this tiny deformation into a highly linear voltage signal which is proportional to the pressure and the excitation voltage, and then use a dedicated chip to convert this voltage signal into a standard 4-20mA current signal or 1-5V voltage signal.

Because the measuring diaphragm of the pressure transmitter UPB2 adopts standard or integrated circuit, which contains linear and temperature compensation circuits, it can achieve high precision and high stability. The transmission circuit uses a dedicated two-wire chip, which can ensure the output of two-wire 4-20mA current signal.

For details, please contact Qi Huang