The common measurement method of frequency is to utilize the frequency characteristics of the circuit to measure frequency, and also to adopt numerical method of utilizing pulse counting to measure frequency.
常用的频率测量方法既有模拟的利用电路频率特性测量频率的方法,又有利用脉冲计数测量频率的数字方法。
参考来源 - 基于FPGA的频率计的设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The key of design for pulse counting is discussed.
讨论了脉冲计数法设计方案的要点，给出了设计电路；
Speed using the SCM, you can use a simple pulse counting method.
使用单片机进行测速，可以使用简单的脉冲计数法。
Pulse counting with gate controlling have been two counted modes that the gate with counter are divided or combined.
门控脉冲计数有闸门与计数器分开和一体两种方式。
应用推荐