The performance simulation of a novel SAW pressure sensor

In order to solve the problems of complicated wiring and inconvenient operation existing in traditional pressure sensor, based on the surface acoustic wave (SAW) theory, a wireless passive pressure sensor with hollow cylinder sealing beam structure is designed in this paper. The sensor is resistant to electromagnetic interference, and the temperature compensation is adopted to obtain the strain that the pressure causes exactly. In addition, the mechanical properties analysis and finite element simulation analysis about the structure is done to verify its effectiveness in this paper. Based on the principle of SAW, this sensor can form a complete sense of passive wireless sensor system. Compared to traditional pressure sensor, the sensor designed in this paper has a high accuracy and application flexibility.