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1. CN103676622 - High-precision method and device for measuring interval between positive time and negative time

Office China
Application Number 201310512907.1
Application Date 28.10.2013
Publication Number 103676622
Publication Date 26.03.2014
Grant Number 103676622
Grant Date 17.08.2016
Publication Kind B
IPC
G04F 10/04
GPHYSICS
04HOROLOGY
FTIME-INTERVAL MEASURING
10Apparatus for measuring unknown time intervals by electric means
04by counting pulses or half-cycles of an ac
Applicants THE 41ST INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
中国电子科技集团公司第四十一研究所
Inventors LIU ZHUWEI
刘朱伟
DU NIANWEN
杜念文
MAO LIMING
毛黎明
BAI YIRONG
白轶容
MENG HAIYING
蒙海瑛
Agents gong xieyang
北京众合诚成知识产权代理有限公司 11246
Title
(EN) High-precision method and device for measuring interval between positive time and negative time
(ZH) 一种高精度的正负时间间隔测量方法及装置
Abstract
(EN)
The invention provides a high-precision method and device for measuring an interval between positive time and negative time. The device comprises a signal shaping and measuring gate extracting unit, a synchronization and interpolation unit, a clock counting unit, a storage unit and a data processing unit, wherein the signal shaping and measuring gate extracting unit, the synchronization and interpolation unit, the clock counting unit, the storage unit and the data processing unit are in connection with one another and in communication with one another. The signal shaping and measuring gate extracting unit conducts comparing and shaping on input signals according to a trigger level, converts measured signals into ECL level signals, and extracts gate signals corresponding to the measured signals through an ECL trigger. The synchronization and interpolation unit samples the two routes of gate signals through a counting clock. By means of the scheme, various types of signal input can be achieved, and the wide input dynamic range can be supported; a channel circuit is obtained through a high-speed ECL device, the channel bandwidth is large, narrow-pulse measurement can be achieved, the minimum measurable pulse width can reach 2.5ns, and the measurement resolution ratio can reach 40ps.

(ZH)
本发明提供一种高精度的正负时间间隔测量方法及装置,其中装置包括信号整形和测量闸门提取单元、同步和内插单元、时钟计数单元、存储单元、数据处理单元以及相互连接和相互通讯;所述信号整形和测量闸门提取单元,依据设置的触发电平,对输入信号进行比较整形,将被测信号转换成为ECL电平信号,通过ECL触发器提取被测信号对应的闸门信号;所述同步和内插单元,利用的计数时钟对两路闸门信号进行采样。采用上述方案,不仅可以实现多种类型的信号输入,而且可以支持较宽的输入动态范围;通道电路采用高速ECL器件来实现,通道带宽大,可以实现窄脉冲测量,最小可测脉冲宽度可达2.5ns,测量分辨率可以达到40ps。