Process for operating a gas sampling device for colorimetric gas analysis
US8718954B2 · kind B2 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/783
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for controlling the delivery of a quantity of gas to be measured through a test gas tube (60) with a pump (20), a sensor system for pressure and flow measurement (12, 14, 16) and a control and regulating unit (30). A common mode offset of a differential pressure sensor (14), determined in a calibration process, is taken into account in the process for operating the gas sampling device to increase the accuracy of a gas volume being delivered with pump (20) from the measuring environment (50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.