一种消除磁阻脉冲传感器温度影响的新方法

提出了一种克服外界缓变物理量（如温度）对半导体型脉冲传感器影响的电压跟随比较法，与传统的电压直接比较法相比，该方法只跟随传感器触发的正弦波原始信号的变化趋势，与外界缓变物理量温度等的变化无关；然后整形成矩形波，有铲地消除温度漂移的提高，提高了传感器的稳定性，此外，还分析了信号处理电路中各参数的选取及注意事项等。

New Method of Eliminating the Effect of Temperature on Magnetor-resistance Pulse Sensors

A method called voltage following and comparing is introduced, which eliminaies the effect of temperature on semiconductor pulse sensors.Compared with the method of voltage comparing directly which was used traditionally, it only follwos the tredency of original sine wave which is triggered by MR elements and has no relation with temperature;then shape it to square wave; thus eliminates the effect of temperature efficiently and elevates the encoder's working stability. In addition, the choices of circuitparameters and the application have been analysed.