基于磁电式转速传感器宽频转速检测系统研究

摘要

针对磁电式转速传感器信号调理电路无法兼顾低频段小信号检测和高频段抗干扰的问题,设计了一种双阈值调理电路,并使用仿真软件Multisim对其进行了仿真分析,仿真结果验证了电路的功能.同时基于该电路特性设计了表决算法,经试验验证表明,所设计的转速检测系统在测量频率很宽时能达到很高的精度.%For the problem that magnetoelectric rotational speed sensor signal conditioning circuit is unable to satisfy the measurement of small signals in low frequency ranges and anti-interference in high frequency ranges,this paper presented a conditioning circuit with double threshold.Multisim simulation software for simulation analysis was carried out,the simulation results verify the function of the circuit.Voting algorithm based on the circuit characteristics design was designed at the same time,the test shows that the designed speed detection system in the measurement frequency can achieve high precision when the frequency is very wide.