冲击信号测量系统中下限频率的正确选取

Correct Selection of Lower Cut-off Ftcquency in the Shock signal Measuring System

本文通过分析冲击信号测量系统下限频率对三种典型冲击信号测量的影响，得出一组冲击信号脉宽及峰值的测试误差与系统下限频率、信号脉宽之间的关系曲线。同时，本文还给出了一套在给定误差的条件下，正确选取冲击信号测量系统下限频率的方法。关键词：

In this paper, we will analyse the influence of lower cut--off frequency in the shock sighnal measuring system on measuring three kinds of typical shock signal, and a group of thecurves which give the relation among the measuring errors of pulse width and peak value ofshock signal, the lower cut -off frequency and the pulse width of the signal. Morever, we also give the method of the correct selection of the lower cut--off frequency in the shock signalmeasuring system on the condition of the given error.