Surface acoustic wave( SAW) pressure sensors have been got more attention by both domestic and foreign research institutions recent years as a new kind of sensor which have the benefits of wireless and powerless transmission features and could break through the limitation of wire connections for the traditional sensors. The calibration technology of SAW pressure sensors was discussed and the calibration of a kind of commercial sensor was carried out. The calibration results were processed by the least square method and the uncertainty was evaluated. The results showed that the sensor can meet certain accuracy requirements on the index such as error,linear and repeatability. This sensor is quite hopeful to get practical application in the aerospace engineering after further development.
Journal of Astronautic Metrology and Measurement
Surface acoustic wave