-
公开(公告)号:US5010761A
公开(公告)日:1991-04-30
申请号:US487596
申请日:1990-03-01
申请人: Bernard Cohen , Don B. Caplan , Edward G. Edwards
发明人: Bernard Cohen , Don B. Caplan , Edward G. Edwards
IPC分类号: G01M3/22
CPC分类号: G01M3/229
摘要: A programmable and automated leak detection apparatus performs automated handling and leak testing of varying sized objects. In one embodiment, the apparatus seals one portion of the object to form an inner chamber and also forms an enclosure about the entire object. Different partial vacuums are drawn on the chamber and the enclosure and a test gas injected into the enclosure. The chamber is monitored for test gas leakage from the enclosure. The apparatus includes an automated measuring subsystem for obtaining a physical parameter of the object which is then compared with data in a program controller's memory to determine a pass/fail leak rate for that particular object. The vacuum system used has separate vacuum lines to the enclosure and chamber and the test gas purging system combined with the use of separate vacuum lines results in the efficient and rapid purging of test gas prior to testing the next object.
摘要翻译: 可编程和自动化的泄漏检测装置执行不同大小的物体的自动处理和泄漏测试。 在一个实施例中,装置密封物体的一部分以形成内室,并且还围绕整个物体形成外壳。 在室和外壳上绘制不同的部分真空,并将注入到外壳中的测试气体。 监测该室以测试气体从外壳泄漏。 该装置包括用于获得物体的物理参数的自动测量子系统,然后与程序控制器的存储器中的数据进行比较,以确定该特定对象的通过/失败泄漏率。 所使用的真空系统具有到外壳和腔室的独立的真空管线,并且测试气体净化系统结合使用分开的真空管线导致在测试下一个物体之前有效和快速地吹扫测试气体。