公开(公告)号：US3762212A

公开(公告)日：1973-10-02

申请号：US3762212D

申请日：1971-07-15

Applicant: ADVANCED TECHNOLOGIES INC

Inventor： MORLEY J ,  FORGASH P

IPC: G01M3/20

CPC classification number: G01M3/202

Abstract: Leak testing a device forming a chamber wherein the device is placed in a test chamber following which a differential pressure is established between the chamber of the device and the test chamber. A tracer gas is introduced to the higher pressure chamber and communication is established between the lower pressure chamber and detecting apparatus such as a mass spectrometer which is sensitive to the tracer medium so as to detect any leakage of the tracer medium from the higher pressure chamber to the lower pressure chamber. At the inlet to the detecting apparatus is established a pressure chamber as to provide laminar flow from the lower pressure chamber to the inlet to the detecting apparatus.

Abstract translation: 泄漏测试形成腔室的装置，其中将装置放置在测试室中，随后在装置室和测试室之间建立差压。 示踪气体被引入到较高压力室中，并且在较低压力室和检测装置之间形成连通，例如对示踪介质敏感的质谱仪，以便检测示踪介质从较高压力室泄漏到 低压室。 在检测装置的入口建立一个压力室，以便从下压力室向检测装置的入口提供层流。