公开(公告)号：US20170003328A1

公开(公告)日：2017-01-05

申请号：US15146227

申请日：2016-05-04

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Qinchuan ZHANG ,  Kuojun YANG ,  Lianping GUO ,  Hao ZENG ,  Jia ZHAO ,  Jinpeng SONG

IPC: G01R19/25

CPC classification number: G01R13/0272 ,  G01R13/0254

Abstract: A method for measuring waveform capture rate (WRC) of DSO based on average dead time measurement. First generating ramp signal or symmetric triangular wave signal as base signal, a trigger signal, the frequency which is higher than the nominal maximum waveform capture rate of the DSO under measurement; secondly, setting the parameters of DSO for measuring; then obtaining a plurality of test signals by delaying base signal K times with different delay time, for each test signal, inputting it the trigger signal simultaneously to DSO, calculating dead time between two adjacent captured waveforms according to their initial voltages, finally calculating waveform capture rate based on average dead times. The waveform capture rate obtained can effectively reflect the overall capturing capacity of DSO, more tellingly, the waveform capturing capacity of acquisition system of DSO.

Abstract translation: 基于平均死区时间测量测量DSO的波形捕获率（WRC）的方法。 首先产生斜坡信号或对称三角波信号作为基准信号，触发信号，其频率高于测量的DSO的标称最大波形捕获率; 其次，设置测量用DSO的参数; 然后通过以不同的延迟时间延迟基本信号K次来获得多个测试信号，对于每个测试信号，将触发信号同时输入到DSO，根据它们的初始电压计算两个相邻捕获波形之间的死区时间，最后计算波形捕获 基于平均死亡时间。 获得的波形捕获率可以有效反映DSO的整体捕获能力，更具体地说，是DSO采集系统的波形捕获能力。