冲击、振动的环境试验在日常生产中常是一项必不可少的工作内容,特别在汽车、精密机械、精密仪器和航天、航空工业部门更为重要。随着生产中对测试要求的不断提高,国标 GB2423《冲击碰撞试验方法》中已明确规定,以脉冲的幅值、脉冲宽度及其速度变化量和波形容差限等几项特征指标作为描述标准冲击试验信号的依据。可是目前测量冲击脉冲信号的系统,常以电荷放大器配峰值保持表所构成,它只能测出脉冲幅值(峰值加速度),有的仪器虽能测出脉冲宽度(脉冲持续时间),但其误差很大,即使利用国外进口仪器,有时仍达不到测量速度变化量的目的。在测量振动方面,虽用丹麦 B+K 公司1047仪 Impact and vibration environmental tests are often an indispensable task in daily production, especially in the automotive, precision machinery, precision instruments and aerospace, aviation industry sector is more important. With the continuous improvement of test requirements in production, the national standard GB2423 “impact test method” has clearly defined the pulse amplitude, pulse width and speed variation and waveform tolerance limits and several other characteristics as a description of the standard Impact test signal basis. However, the system for measuring the impact pulse signal is often composed of a charge amplifier and a peak hold table. It can only measure the pulse amplitude (peak acceleration). Although some instruments can measure the pulse width (pulse duration), The error is very large, even if the use of imported equipment, and sometimes still can not achieve the purpose of measuring the speed of change. In measuring vibration, although the Danish B + K company 1047 instrument