基于时-空关系的时间间隔与频率测量方法研究  

Research on the method of time interval and frequency measurement based on the relationship of time-space

作　　者：偶晓娟[1] 周渭[1] 李琳[1] 王斌[1] 杨喜光[1] 

机构地区：[1]西安电子科技大学测量与仪器系,西安710071

出　　处：《仪器仪表学报》2006年第z2期1036-1038,共3页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(60072037);(60571060)资助项目

摘　　要：利用信号的时-空关系通过对被测时间信号与其在长度上传输延迟的重合检测来测量短时间间隔,以此为基础可完成各种时间间隔与频率测量仪器。可比较容易地获得ns至10ps量级的分辨率。这种利用信号传递速度的稳定、准确这一自然现象所保证的高精度比国内外传统的基于频率处理的方法精度更高,价格也更有优势,而且还能够解决特高频率的测量问题。A new approach of time interval and frequency measurement is proposed, which can be used to measurement short time interval by detecting the phase coincidence point between the signal and its transfer delay with related length. The precision from several ns to 10ps can be easy acquired. The method using the natural phenomenon of stability and precision of signal transfer can guarantee much higher accuracy than other traditional ones being dealt with frequency. The measurement problem of super-high frequency can also be resolved.

关 键 词：时空关系 时间间隔 频率测量 

分 类 号：TH7-55[机械工程—仪器科学与技术]