Principles and Applications of sapphire pressure sensor

The use of strain gauges working principle, the use of silicon - sapphire as semiconductor sensitive element, with unparalleled metrological characteristics. Department of the sapphire single crystal insulator elements, hysteresis does not occur, fatigue and creep; sapphire be strong than silicon, higher hardness, deformation afraid; sapphire has a very good Engine Cooling Temperature Sensor flexibility and insulation properties (1000 OC or less), therefore, the use of silicon - sapphire manufactured semiconductor sensitive element is not sensitive to temperature change, even in high temperature conditions, but also has good operating characteristics; sapphire strong anti-radiation properties; Further, silicon - sapphire semiconductor sensitive element, without pn drift, Therefore, fundamentally simplifies the manufacturing process, improve repeatability, ensuring high yield.