光电测速传感器及其信号调理电路

Speed measurement photo-electricity sensor and its signal adjustment circuit

介绍了光电测速传感器的组成 ,分析了该传感器的工作原理。在分析该传感器信号的基础上 ,用SD 380动态分析仪作了频谱分析。设计了相应的信号调理电路 ,并据此制作了车速仪 ,其准确度高 ,实用性强。

The constitution of the sensor is analyzed. Based on the analysis of the sensor signal, the frequency spectrum is made with a SD-380 instrument.The circuit adaptable to adjust the sensor signal is designed.By using the circuit the speed meter is made,which is high in precision and practicable.