Imported high precision and high stability pressure sensitive chips are selected for diffused silicon pressure transmitter. Sensitive chips are fabricated by advanced micro-mechanical etching process, which forms Wheatstone bridge by diffusing four high-precision resistors with temperature compensation on silicon wafers. Because of piezoresistive effect, there are some changes on the resistance values of the four bridge arm resistance, so as to make the bridge unbalanced, and then the sensor outputs an electric signal corresponding to the change of pressure. The output electric signal is compensated by amplification and non-linear correction circuit, which generates voltage and current signals which correspond linearly to the input pressure.

Applications

•  Industrial process control
•  Petroleum industry
•  Chemical industry
•  Paper industry
•  Metallurgy

Features

•  Compact structure and easy to install.
•  Advanced diaphragm/oil-filled isolation technology.
•  High stability and reliability.
• Seismic resistance and anti-radio frequency interference.
•  316Lstainless steel isolation diaphragm structure.
•  High precision, all stainless steel structure.
•  Micro-amplifier, voltage and current signal output.
•  Strong anti-interference and long-term stability.
•  Variety of process connections are available.
•  Wide range of measurement.
•  Anti-vibration and anti-impact