Method for functionally testing a leak detector
US8850866B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2010 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Jun 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/207
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to functionally test a leak detector (20) that comprises a partial pressure sensor (21), a testing device (30) having a variable volume (33) is connected to the leak detector. Said testing device can be a syringe. By changing the volume (33), the partial pressure of the test gas contained in the ambient air is changed. A test is carried out to check whether the leak detector (20) indicates the change. According to the invention, a vacuum pumping device having mechanical vacuum pumps is not required. The method is suitable for testing vacuum systems that contain a vacuum pumping device that is used in the leak test to generate a required vacuum. The service technician can perform the functional test of the leak detector (20) separately from the system and the vacuum pumping device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.