摘要
针对放入式电子测压器在测试火炮膛压时,内部的微型脉冲供电式光电倒置开关无法正常上电的问题,设计了倒置开关的检测系统。该系统由CPLD控制A/D转换器的数据采集和外部闪存的存储,将采集的数据传输到计算机中进行分析处理。系统能满足高温、常温和低温环境下信号的采样频率,并可根据信号参数验证倒置开关的可靠性。试验结果表明,该检测系统精确度高,且被测倒置开关功耗低、可靠性高。
For electronic piezo gauge used for testing gun chamber pressure, its internal miniature pulse-powered photoelectric invert switch cannot often be powered up normally. To solve this problem, a test system for invert switch is presented to verify the reliability of the invert switch. The test system uses complex programmable logic device （CPLD） to control data acquisition of A/D converter and data storage of external flash memory, and then transmits the acquired data to a computer for data analysis and processing. The test system can provide the required sampling frequency of the signal in high temperature, normal temperature and low temperature environments, and the reliability of the invert switch can be verified according to the signal parameters. The results show that the test system has high precision and the tested invert switch has low power consumption and high reliability.
关键词
倒置开关
存储测试
CPLD
测试系统
invert switch
storage measurement technology
complex programmable logic device （CPLD）
test system
