摘要
功率超声设备中,频率自动跟踪技术是一个重要课题。本文叙述了用CD4046锁相环实现频率自动跟踪的电路结构和工作原理。经两项实验测试表明:该系统的跟踪性能良好,电路又较简便。
It is important that the frequency of ultrasonic generator tracks the transducer mechanical resonance in the power ultrasonic equipment. This paper describes the electronic structure of which automatic frequency-tracking has been implemented with help of IC model CD4046 and its operating principle. We did two tests and got satisfactory results.
出处
《中国医学物理学杂志》
CSCD
1993年第1期42-45,共4页
Chinese Journal of Medical Physics
关键词
超声
锁相环
频率跟踪
Ultrasonic
Phase locked loop
Frequency-tracking
