基于铷原子钟和双TDC-GP2的高精度时间基准测量系统的设计  

The Design of High precision Time Reference Measurement System Based on Rubidium Disciplined Crystal Oscillator and Double TDC GP2

作　　者：崔永俊[1,2] 刘阳 杨兵[1,2] CUI Yongjun1,2 ,LIU Yang1,2, YANG Bing1,2(1. National key laboratory for Electronic Measurement Technology, North University of China, Taiynan 030051, China; 2. Ministerial Key Laboratory for Instrument Science and Dynamic Test, North University of China, Taiyuan 030051, China)

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,太原030051

出　　处：《电子器件》2017年第5期1072-1077,共6页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61335008)

摘　　要：针对目前精密时间基准测试仪测量精度低、分辨率低、测量范围小、设计复杂等不足,结合最新的时间-数字转换技术,设计了基于铷原子钟和双TDC-GP2的高精度时间基准测量系统。结合FPGA和上位机,在简化设计的基础上实现了时间基准偏差的高精度、高分辨率、大量程连续测量。经过测试,系统测量量程为1 ns^1 s,时差测量分辨率达到100 Ps,精度达0.001 5%±0.3 ns,满足设计要求。Combined with the latest Time-to-Digital Converter technology,a high-precision time reference measurement system design is put forward,which is based on rubidium disciplined crystal oscillator and double TDC-GP2 for the problem of the low precision,low resolution,small measuring range and design complex of the precision time benchmark for the moment. Combined with FPGA and PC then the high precision,high resolution and large range continuous measurement of the time base error were realized based on simplified design. After testing,the system measurement range is 1 ns ~ 1 s,the resolution reaches 100 ps,the precision up to 0.001 5%±0.3 ns,which meets the design requirements.

关 键 词：高精度基准偏差测量 TDC-GP2 铷原子钟 直接脉冲计数法 

分 类 号：TM935[电气工程—电力电子与电力传动]