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    • 4. 发明授权
    • Tire sensor and method of assembly
    • 轮胎传感器和组装方法
    • US06951139B2
    • 2005-10-04
    • US10729600
    • 2003-12-05
    • Rene Francois ReuterClaude Ernest Félix BoesPeter Phelps RochRene Jean ZimmerDamian Georges
    • Rene Francois ReuterClaude Ernest Félix BoesPeter Phelps RochRene Jean ZimmerDamian Georges
    • G01L1/14G01B7/16
    • G01L1/142
    • A stress sensor includes two capacitor plates held in a spaced-apart relationship by a connector block situated therebetween. The connector block includes a plurality of rods protruding from opposite connector block sides and extending into a respective capacitor plate to attach peripheral portions of each capacitor plate to the connector block. A small air gap is maintained between peripheral portions of the capacitor plates by the inclusion of a spacer member. Terminal end portions of the protruding rods are deformed such as by the application of heat over an outer surface of the capacitor plates to retain the capacitor plates in a fixed mutual relationship. The terminal end portions of the rods further serve to prevent horizontal or vertical slippage between the capacitor plates when the sensor is vulcanized into rubber compounds such as in a tire. Once embedded within the rubber compound, the gap between the capacitor plates varies responsively to stress within the rubber compound whereby varying proportionately the capacitance of the device. A signal is directed into the sensor device and an antenna positioned proximate to the device detects the capacitance value between the capacitor plates. As the capacitance varies proportionately with stress within the material, the antenna detects the changes and transmits data to a remote reader that interprets the data to ascertain measured stress within the rubber compound.
    • 应力传感器包括通过位于其间的连接器块以间隔开的关系保持的两个电容器板。 连接器块包括从相对的连接器块侧面突出并延伸到相应的电容器板中的多个杆,以将每个电容器板的周边部分附接到连接器块。 通过包括间隔件,在电容器板的周边部分之间保持小的气隙。 突出杆的端子端部例如通过在电容器板的外表面上施加热而变形,以将电容器板保持在固定的相互关系。 当传感器硫化成诸如轮胎中的橡胶化合物时,杆的末端部分还用于防止电容器板之间的水平或垂直滑动。 一旦嵌入在橡胶混合物中,电容器板之间的间隙响应于橡胶混合物内的应力而变化,从而使装置的电容成比例地变化。 信号被引导到传感器设备中,并且靠近设备定位的天线检测电容器板之间的电容值。 由于电容随材料内部的应力成比例地变化,天线会检测到变化,并将数据传输给远程读取器,以解释数据以确定橡胶混合物内的测量应力。