New and reconfigurable data storage instrument for pressure measurement

In order to acquire destroy effect data of the missile explosion shock wave, a new and reconfigurable data storage instrument for pressure measurement has been designed making use of CPU and FPGA, and depending on the embedded technology of data acquisition. There was a piezoelectricity pressure sensor inner the instrument. In order to actualize double precise measurement, a two channel analog amplifying circuit and numeric control-storage circuit are adopted in the design. The inner/outer spring based on differential input was carried out for anti-jamming and increasing the reliability. It has successfully measured the explosion shockwave pressure of dynamic missile warhead, and has proved that the instrument is possessed of good practicability, reliability and expansibility.