摘要
文中介绍了一种模拟量信号的红外传输与采集系统，提出了用双频调制检出异常传输状态和用Ｖ／Ｆ变换及频率测量进行Ａ／Ｄ转换的方法。
An infrared transmission and collection system for analog signals is introduced.The method for checking the abnormal transmission state by double frequency modulation and that of analog digital conversion by voltage frequency conversion and frequency measurement are put forward.The principle and the accuracy of the system are analyzed.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1997年第1期116-121,共6页
Journal of Southwest Jiaotong University
关键词
红外传输
模拟量信号
电力设备
泄漏电流
测量
voltage frequency conversion
frequency modulation
infrared trans mission
frequency measurement interface
