【摘要】 介绍一种基于PC机的瞬态过程分析测试系统,该系统可用于爆炸、光脉冲、振动和材料破坏等各种非周期性随机信号的分析测试;系统采样速度四档可调,最高可达20MHz,其它分别为10MHz,5MHz和2.5MHz,以适用于不同速度的信号。采用数据存储与计算机复用存储器技术,计算机可马上对所采集的数据进行处理,免去数据传送的过程,用存储器页面管理虚存技术,解决了大数据量存储问题;用交叉存储技术,解决了存储器速度慢的瓶颈问题。更多还原

【Abstract】 An analysis &. measure system for instantaneous state is presented in this paper. It is connected with a personal computer. This system is employed to measure and analyze the random signals,such as exploding, light pulse, vibration and breaking etc. There are four kinds of A/D converter speeds (20MHz,10MHz,5MHz and 2. 5MHz). which can be adjusted to adapt to different situations. The data storage memory can be used by the CPU,so that the computer can process the acquird data stored in the data memory immediately, the data transfer process is omitted, and much time is saved. The technology of page management of RAM is utilized to solve problems in large amount of data storage. The acquired data are stored in different memory bodies in proper order,so the problem between low read & write speed of memory and high speed data generated by A/D converter can be solved effectively.更多还原