基于T-V转换的极短时间间隔测量方法  

The measurement method of very short time interval based on time to voltage convert

作　　者：王鹏[1] 景新幸[1] 冯卫[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2013年第2期102-105,共4页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(60961002)

摘　　要：针对时频测量出现的±1误差,即极短的时间间隔,提出一种基于多周期同步与模拟内插结合的时间电压转换法。利用D触发器、集成运放等设计了该方法的相应电路,成功实现了不受时钟频率影响的测量模块,并将测量误差减小至0.02%,减小了极短时间间隔对测量精度的影响。Aiming at ±1 error in the measurement of time-frequency, which is a very short time interval, a time to voltage conversion method based on multi-cycle synchronization and analog interpolation combination is proposed. A circuit is designed to implement this method by using D flip-flop and integrated operational amplifier. The measuring module regardless of the clock frequency is successfully achieved, the measurement error is reduced to 0.02%, the effect of measurement accuracy by the very short time interval is effectively reduced.

关 键 词：极短时间间隔 多周期同步 模拟内插 T-V转换 

分 类 号：TP202.2[自动化与计算机技术—检测技术与自动化装置]