摘要
针对25 Hz相敏轨道电路的信号特点,以高精度电流互感器为核心器件,利用运算放大器和AD转换器进行25 Hz轨道电路信号的调理和采集,设计一种能够实时采集25 Hz相敏轨道电路信号的电路模块,最终实现25 Hz相敏轨道电路信号的数字化。
According to the signal characteristics of 25 Hz phase sensitive track circuit,using high precision current transformer as the core device,using operational amplifier and AD converter to adjust and collect 25 Hz track circuit signal,A circuit module which can collect 25 Hz phase sensitive track circuit signal in real time is designed.
作者
粟昆
Su Kun(Hunan Zhongche Times Communication Signal Co.,Ltd.,Changsha Hunan 410005)
出处
《现代工业经济和信息化》
2021年第5期53-55,共3页
Modern Industrial Economy and Informationization
关键词
25HZ相敏轨道电路
信号采集模块
电流互感器
25 Hz phase sensitive track circuit
signal acquisition module
current transformer
