一种通用高精度存储式冲击波测试系统设计

针对现有冲击波测试系统精度不足及爆炸测试后易损坏的问题,设计了一种通用式高精度存储式冲击波测试系统。首先,该系统以通用、模块化的总体设计思想,在此基础上把操作面板、传感器、采集电路、存储电路集成一体。测试系统以FPGA为主控芯片,采用ICP型压力传感器,将采集到的信号通过高精度A/D转换器进行数/模转换,并存储在NAND Flash中,待爆炸结束后将数据进行回读。最后通过减小系统体积,降低测试系统被破片击中的概率。多次试验结果表明,该系统在军工领域有较高的工程应用价值。

Design of Universal High Precision Memory Shock Wave Test System

Aiming at the lack of accuracy of the existing shock wave testing system and the problem of easy damage after explosion test,a universal high precision memory shock wave testing system is designed.Firstly,the system integrates the operation panel,sensor,acquisition circuit and storage circuit on the basis of general and modular design idea.The test system takes FPGA as the main control chip and uses ICP pressure sensor.The collected signals are converted from digital to analog through high-precision A/D and stored in NAND Flash.The data will be read back after the explosion.Finally,by reducing the volume of the system,the probability of the test system being hit by the fragments is reduced.The experiment results show that the system has high engineering application value in military industry.