Brake disc stack wear measurement

The invention relates to brake disc stack wear measurement. In some examples, a brake wear measurement system includes an emitter configured to emit a signal and a passive powered sensor system including a controller and a sensor configured to sense the signal emitted by the emitter. The emitter and the sensor of the sensor system are mounted on the brake assembly such as the emitter and the sensor may be configured to move relative to each other as the brake disc stack wears. Thus, a characteristic of the signal emitted by the emitter and sensed by the sensor may change as a function of the brake disc stack wear. The brake wear measurement may further include a processor configured to receive the output generated by the sensor and determine, based on the output, an amount of wear of the brake disc stack assembly. 本发明涉及制动盘堆叠的磨损测量。在些实例中，种制动器磨损测量系统包括构造成发射信号的发射器和无源地提供动力的传感器系统，该传感器系统包括控制器和构造成检测由发射器所发射信号的传感器。传感器系统的发射器和传感器被安装在制动组件上，例如发射器和传感器可构造成当制动盘堆叠发生磨损时相对于彼此运动。因此，由发射器所发射且由传感器所检测的信号的特征可作为制动盘堆叠磨损的函数而变化。制动器磨损测量还可包括