首页>
外国专利>
Speed sensor based on electrical ripple and calibratable using mechanical motor signals
Speed sensor based on electrical ripple and calibratable using mechanical motor signals
展开▼
机译:基于电纹波的速度传感器,可使用机械电机信号进行校准
展开▼
页面导航
摘要
著录项
相似文献
摘要
The tachometer comprises a microphone for disposition next to the exhaust of the vehicle and an accelerometer for disposition adjacent to its engine. A selected one of the outputs is connected to an ADC which provides digital samples to a central processing unit. Also, the ripple from the battery is sampled and provided to the CPU. The CPU calculates a constant representing the relationship of the frequencies of the ripple samples and the mechanical samples and responds to the ripple samples and the constant to provide output signals corresponding to the speed of the engine. The speed is displayed. MATH
展开▼