1) counter-frequency meter
计数频率计
2) frequency count
频率计数
1.
The function of frequency counter and serial communication with computer was realized by using Verilog HDL hardware descriptive language on a chip of complex programmable logic device (CPLD).
硬件通过利用复杂可编程逻辑器件(CPID)实现频率计数和串行通信功能；软件采用图形化编程语言。
3) PLC
计数频率
1.
ANALYSIS OF COUNT FREQUENCY OF PLC;
可编程控制器计数频率问题的分析
4) digital frequency counter
数字频率计
1.
Study and design of adaptive digital frequency counter based on VHDL and FPGA;
基于VHDL和FPGA的自适应数字频率计的研究与设计
2.
The design and simulation of simplified digital frequency counter based on Multisim9.0
基于Multisim9.0简易数字频率计的设计与仿真
3.
By the example of the digital frequency counter design on FPGA, this paper introduces the design of SOC(System On Chip) based on FPGA/CPLD.
通过例举基于FPGA的数字频率计的设计 ,阐述了如何利用FPGA/CPLD实现片上系统。
5) digital cymometer
数字频率计
1.
A 12-bit uniform precision digital cymometer with automatic switching range;
量程自动转换的12位十进制等精度数字频率计
2.
Design of Digital Cymometer Based on VHDL;
基于VHDL的数字频率计设计
3.
Design digital cymometer of using FPGA;
用FPGA设计数字频率计
6) timer frequency
计数器频率
补充资料：计数
统计（数目）；计算：不可～ㄧ难以～。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条