A tire pressure sensing system taking tire capacitor impedance and SAWR as sensor was introduced in this paper.Since the change of the tire pressure could cause corresponding change of the impedance of tire inner wire and rubber constitution,the variation of impedance could be regard as an attribute quantity of the tire pressure,and could be transformed into radio frequency signal under the function of matching network and SAWR.Wireless measurement of tire pressure could be realized by measure the frequency...
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刘庆,张向文.基于轮胎电容阻抗和SAWR的胎压传感器[J].压电与声光,2011,33(1). LIU Qing, ZHANG Xiangwen. Tire Pressure Sensing System Based on Surface Acoustic Wave Resonator and Tire Capacitor Resistance[J]. PIEZOELECTRICS AND ACOUSTOOPTICS