冲击波场高速数据采集系统

Blast Wave Field Multichannal HighSpeed Data Acquisition System

介绍了一种测试瞬态冲击波压力场的３２通道高速采集及实时处理系统。设计了由Ｉｎｔｅｌ４８６和ＤＳＰ（数字信号处理器）构成的三级ＣＰＵ分布系统，解决了多通道采样同步、自动触发、数据传输阻塞、实时处理等高速采集中的常见问题，为冲击波等瞬态信号的测试提供了一种切实可行的方法。由于采用了模块化设计思想，该系统的采集处理部分能够单独做为一套通用测试设备。

Introduces a kind of multichannal acquisition system which can test the blastwave in pressure field. A threeleveled CPU system constructed of Intel486 and DSP (digital signal processor) is designed. It solves the problems such as synchronism of multichannal sampling, automatic triggling, data transferring jam and realtime processing which often happen in high speed acquisition.It provides a reasonable and possible method to test dynamic and shorttime signal. Because of the modular designing, the acquisition and processing part could be applied in varity of applications such as general testing and industrial monitoring equipment.