国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to realize the high-precision measurement, range adaptive and automatic testing of explosive bridge wire resistance measurement and insulation inspection during the comprehensive testing of weapon systems. The application scenario, overall architecture, hardware design requirements and software design requirements of explosive bridge wire resistance measurement were studied. By adopting the technology of switching different measurement channels with multiple-choice switch matrix and the security guarantee technology of automatic detection before the constant voltage source and constant current source are connected to the measurement circuit, range adaptive high precision bridge resistance tester can realize an innovation of range self-adaptation compatible with 2-wire and 4-wire resistance measurement. By experimental testing, the measurement error absolute value of small resistance is less than 0.5% and the measurement error absolute value of large resistance is less than 1%. At the same time, it can realize range adaptive and automatic testing of the explosive bridge wire resistance measurement. By practical application, it can meet the requirements of the bridge wire resistance measurement and insulation inspection.