发明名称 |
Vakuum-Meßgerät für die integrale Dichtigkeitskontrolle mit leichten Gasen |
摘要 |
In a vacuum meter for integral tightness checking using light gasses, such as helium, as test gas and having a sample enclosed in a test container, either the test container contains the test gas and the sample is connected to a vacuum pump by a gas-tight line that starts at the test container and within which is arranged a test gas detector, or alternatively the sample contains the test gas and the test container is linked to a vacuum pump by a gas-tight line within which is arranged a test gas detector. In both alternative embodiments of the vacuum meter, a significant increase in the reaction accuracy is achieved in different test conditions by arranging in the line (41) a first valve (20) designed as a shutt-off member and a first vacuum pump (30) at the end of the line, and by arranging between the test container (40) and the valve (20) a branch line (42, 43) with a second valve (21) designed as a shutt-off member, a test gas detector (50) at the end of the branch line and therebetween a turbomolecular pump (31) whose high-vacuum side (31b) is oriented towards the detector (50).
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申请公布号 |
DE4228149(A1) |
申请公布日期 |
1994.03.03 |
申请号 |
DE19924228149 |
申请日期 |
1992.08.25 |
申请人 |
LEYBOLD AG, 63450 HANAU, DE |
发明人 |
REICH, GUENTER, DR., 5000 KOELN, DE |
分类号 |
G01M3/20;(IPC1-7):G01M3/20;B65D90/50;G01N27/00 |
主分类号 |
G01M3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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