摘要
针对冲击波超压测试存在的问题,设计了一套小型冲击波存储测试系统。系统选取了美国PCB公司的压电传感器,并针对此传感器设计了相应的电荷放大器,放大器和滤波器。系统以FPGA为核心驱动外围AD和FIFO完成数据采集。对关键时序采用Modelsim软件进行了仿真。使用该系统对某爆炸20 m处的冲击波超压信号进行了检测,并给出了波形。
Considering the deficiency of measuring method for shock wave,a small stored measurement system for shock wave is designed. A PCB piezoelectric sensor is used in the system. The charge amplifier,amplifiers and filters is designed for the PCB piezoelectric sensor. The peripheral AD and FIFO are driven by FPGA to accomplish the data acquisition. The critical timing simulation is done on the Modelsim software. The system is selected to measure a shock wave signal at 20 m,and the waveform is drawn.
出处
《电子器件》
CAS
北大核心
2014年第1期119-122,共4页
Chinese Journal of Electron Devices
基金
国家自然科学基金项目(50730009)
关键词
存储测试
冲击波
FPGA
modelsim
storage measurement
shock wave
FPGA
modelsim
