基于漏磁原理的非接触式电磁阀检测技术应用研究

摘要

电磁阀是重要的控制部件,应用于各类航天飞行器.根据电磁阀阀芯动作特性,结合目前漏磁检测的一些研究,提出了一种基于漏磁原理的非接触式电磁阀检测方法,对飞行器的电磁阀极性进行测试,并设计了电磁阀极性检测系统.在此基础上对检测系统应用进行研究,验证漏磁检测技术应用到航天器极性测试中的可行性和准确性.结果表明:基于漏磁原理的非接触式检测技术应用于电磁阀动作检测,与控制指令相比,检测结果准确可靠.%Solenoid valve is an important controller unit and it is used widely in serious of aerospace crafts. According to the characters of valve element and the present research results of solenoid valve detection technology, this paper proposes a method of contactless solenoid valve detection based on the theory of magnetic flux leakage. The purpose of the method is to test the polarity of solenoid valve and a polarity detector system is designed. It analyzes the application of the detection system and verifies the feasibility and accuracy of magnetic flux leakage detection technology applied on the polarity testing on aerospace craft. The result indicate: Contactless detection technology based on magnetic flux leakage theory apply on solenoid valve working test,compared with control command, the test result is accurate and credible.