[Wotian share] The difference between diffused silicon piezoresistive pressure sensor and strain gauge pressure sensor

We share the differences between diffused silicon piezoresistive pressure sensors, ceramic piezoresistive pressure sensors, and sputtered film pressure sensors. Today we continue to share the differences between diffused silicon piezoresistive pressure sensors and strain gauge pressure sensors. The difference.

Material of strain gage pressure sensor

It works based on the principle of resistance strain effect. There are two types of resistance strain gauges: metal strain gauges (metal wire or metal foil) and semiconductor strain gauges. The measured pressure strains the strain gauge.

Diffused silicon piezoresistive pressure sensor is made according to the principle of piezoresistive effect

Characteristics of strain gauge pressure sensor

Strain gauge pressure sensor has small thickness, large working current, long life, easy mass production, and is widely used in stress measurement.

Diffused silicon piezoresistive pressure sensor with high accuracy and small linearity

Structure of strain gage pressure sensor

It consists of a base material, a metal strain wire or strain foil, an insulation protection sheet, and a lead-out wire.