【作者】 徐继辉； 韩韬； 吉小军；

【Author】 XU Ji-hui,HAN Tao,JI Xiao-jun (Shanghai Jiao Tong University,Shanghai,200240)

【机构】 上海交通大学电子信息与电气工程学院；

【摘要】 本文针对船舶传动轴扭矩检测特殊性,设计了一种卡环安装方式的单端口SAW谐振型无线扭矩传感器,并对传感原理及回波信号的处理进行了分析和讨论。传感器的设计考虑了安装误差及附加应力的影响,从而采用差动方法进行测频。对谐振器回波信号的处理方法展开了详细的讨论,并在Y切石英谐振器上进行了实验。通过讨论及实验,表明了本文提出的扭矩检测方法有效性。更多还原

【Abstract】 A wireless fixture torque sensor,based on two one-port SAW resonators,is presented in the paper,which is suit for propeller shaft on ship.Theory of sensor and signal processing is discussed.Design of the sensor allows for disturbing influences from an installation error and additional stresses effects,and then reducing them with by measuring the change of difference frequency.The echo signal processing is discussed in detail.The analysis shows the effectiveness and feasibility of the plans,as well as the achieved experiments on Y-cut quartz SAWR.更多还原