基于等精度原理双踪频率计的设计  

Design and Realization of Double Trace Frequency Meter with Equal Precision Measurement

作　　者：龚晓晖[1] 袁赟[1] 柯炜[1] 殷奎喜[1] 

机构地区：[1]南京师范大学物理科学与技术学院,江苏南京210097

出　　处：《微计算机信息》2007年第06S期150-151,132,共3页Control & Automation

基　　金：地理信息科学江苏省重点实验室开放基金资助(JK20050304)

摘　　要：介绍了一种实用型双踪频率计的实现方法,内容主要包括该频率计的工作原理和硬件结构以及软件仿真结果。该频率计采用等精度测量的原理,通过硬件和软件的结合,实现对同时输入的两路信号频率精确的测量,并能够保证在100MHz以下频段范围内对输入信号的测量精度达到1Hz,具有较高的灵敏度。该频率计具有的可双踪测量、简单实用、精度较高、灵敏度较高等特点,使其能够广泛应用于实验室、高频信号测量等众多环境,具有相当广阔的使用前景。This paper introduces a new way to realize a kind of practical double trace cymometer. And the contents include the hardware configurations and the primary working principle. Base on the equal precision measurement theory, with the combination of hardware and software, this eymometer can calculate the frequency of the double trace input signal precisely and can reach the precision of 1Hz within the input frequency scope of 0Hz to 100MHz, and so high sensitivity is one of its maim characters. Based on these characters which include double trace calculate, simple and practical, high precision and high sensitivity, this eymometer can be well used in lab and other situations, and it has considerable application prospect.

关 键 词：频率计 双踪测量 实用型 高精度 高灵敏度 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]