Automated leak detection apparatus and method therefor

Details Automated leak detection apparatus and method therefor Automated leak detection apparatus and method therefor

1990-03-01

1991-04-30

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

G01M 320

Patent

active

050107615

ABSTRACT:
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.

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