摘要
介绍了锁相环集成电路CD4046的内部结构及其工作原理。设计了一种由CD4046锁相环实现的电动机转速测量装置,利用锁相倍频原理,抑制了电磁辐射等因素的干扰,弥补了光学rpm转速测量法的不足。
This paper introduces the inner structure and its working principle of phase lock loop CD4046, and designs the measurement of electromotor rotation speed by using phase lock loop CD4046. It can resist the interference of electromagnetic radiation, and make up for the weak points of optical rpm measurement method of rotation speed.
出处
《重庆科技学院学报（自然科学版）》
CAS
2007年第1期49-52,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
锁相环
锁相倍频
转速测量
phase lock loop
phase-locked frequency multiplication
the measurement of rotated speed
