Piezoresistive Pressure Sensors

The diffusion-type semiconductor pressure gauge used by Micro Sensor is made by diffusing P-type impurities on a high-resistance N-type silicon substrate. A set of equivalent resistors are diffused in the fixed direction of the monocrystalline silicon, and the resistors are formed into a Wheatstone bridge. When the pressure changes, the monocrystalline silicon produces pressure, causing the bridge resistance directly diffused on it to produce a change proportional to the measured pressure, and then the corresponding voltage output signal is obtained by the bridge circuit. The semiconductor pressure gauge has high sensitivity, low hysteresis, small creep, and small size so the pressure sensor has higher precision and a wider application range.

The pressure sensor plays an important role in the detection part of the industrial automation production process, it is the core part of the smart industry. As a pressure sensor manufacturer, MicroSensor designs and develops types of industrial pressure sensors, differential pressure transmitters, and submersible level sensors and transmitters so far and we will continue to provide more advanced pressure transmitters for the process industry to buy.