CAJ | 학술논문

非接触式超声泄漏检测方法在国外已应用于载人航天器在轨检漏。文章基于气体泄漏超声产生机理及声压与泄漏量的关系，搭建了一套超声泄漏检测系统，研究了泄漏判断及漏孔评估算法，并进行了综合试验测试。结果表明，该方法能有效地对泄漏是否发生进行判断，并可粗略评估泄漏量的大小和漏孔直径，为我国空间站密封舱在轨泄漏检测提供参考。
비접촉식초성설루검측방법재국외이응용우재인항천기재궤검루。문장기우기체설루초성산생궤리급성압여설루량적관계，탑건료일투초성설루검측계통，연구료설루판단급루공평고산법，병진행료종합시험측시。결과표명，해방법능유효지대설루시부발생진행판단，병가조략평고설루량적대소화루공직경，위아국공간참밀봉창재궤설루검측제공삼고。
This paper proposes a method of non-contact ultrasonic leak detection, and builds a system of ultrasonic leak testing based on the principle of gas leak ultrasonic generation and the relation between the sound level and the leakage. An algorithm is developed for the leak testing and several experimental tests are carried out. It is shown that this method can determine whether a leak event occurs and give a leakage amount approximately, which may provide a reference for on-orbit leak detection of the sealed cabin of China’s space station.