Shock wave pressure testing two-channel storage

According to the problem of low stable system, not high test circuit integration, unitary measured data,and data easy to lose in testing overpressure signal during the explosion,methods of stored testing and measuring by using Internal and external control trigger modeare presented. In this method, the explosion signal is collected and memoried by two channels at the same time. The first channel to capture the signal changes in the value of trigger signals, and the data stored in memory channel 1; the second channel used the explosion of ammunition as external interrupt to control signal collecting,and the data stored in memory channel 2. Analysis and tests show that the combination of two memory testing methods is able to maximize the impact of reduced external interference signals; the data is stored in nonvolatile memory during the data collection process and kept real time, which can effectively improve the reliability of a single test and maximize the system availability.