Application of SOI pressure sensor to working resistance monitoring of hydraulic support

In order to improve reliability of monitoring of hydraulic support working resistance, a new silicon SOI pressure sensor was developed. The sensor fuses strain meter with double-deck resistance grid and stainless steel elastomer, the control circuit uses sampling mode with constant value and time to ensure effectiveness and coherence of the data. The field application results show that the new silicon SOI pressure sensor can get accurate monitoring data and can be used to analysis of mine roof supports crushing accident.