基于磁敏电阻的齿轮转速传感器设计  

Circuit Design of the Gear Velocity Sensor Based on Magnetosensitive Resistance

作　　者：朱志平[1] 

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714099

出　　处：《渭南师范学院学报》2015年第2期30-37,共8页Journal of Weinan Normal University

基　　金：渭南师范学院特色学科建设项目:电气工程与秦东工业(14TSXK07)

摘　　要：介绍了一种基于磁敏电阻的齿轮转速传感器,该传感器利用磁阻效应原理制成,对铁磁性齿轮的转速进行测量.对不同转速的铁磁性齿轮进行转速测量实验.实验结果表明,在0-150 Hz的频率范围内,转速传感器工作状态稳定;在测试距离5 mm范围内,传感器信号输出可靠.该转速传感器灵敏度高、抗干扰能力强、电路简单、成本较低,可适用于低速和高速的齿轮转速测量.A gear rotational speed measuring sensor based on magneto resistive was introduced. It measures the rotational speed of the ferromagnetism gear with the principle of magneto-resistance effect. Ferromagnetism gears with different rotational speed were measured in the experiment. The experimental result shows that the performance of the sensor is stable in the frequency range of 0- 150Hz, and its output is reliable within the security distance of five millimeters. The sensor has high sensitivity and high anti-inter- ference ability. Furthermore, it has simple structure and low cost. It adapts for the high and low rotational speed of the ferromagnet- ism gear.

关 键 词：磁敏电阻 转速 传感器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]