Method and apparatus for sampling and detecting gases in a fluid
US5357781A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Jan 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0052
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed a method and apparatus for repetitively taking samples of a predetermined quantity of a test gas in a liquid and introducing these samples to a test chamber. Each sample is agitated to release therefrom the test gas. The released gas is then conveyed to a sensor, which monitors the released gas for the presence of a concentration above the threshold level to produce an alarm indicative thereof. The samples of the test gas in a liquid may be repetitively taken from one zone of a plurality at a time until each zone is sampled. After one sample has been tested in the test chamber, it is discharged therefrom and the test chamber is flushed with a sample of the liquid and test gas taken from the next zone of the plurality before introducing the next sample from the same, next zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.