Sample conditioning and environmental control techniques for gas sensor
US7352465B2 · kind B2 · utility
17Cited by
22References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2005 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | May 31, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3545
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is a system and method of conditioning the sample and surrounding environment of an exhaled breath sensor. It includes (i) using a particular molecular sieve for a triple purpose: (a) maintaining the sensor at a constant relative humidity during storage, (b) equilibrating the incoming breath stream to the same relative humidity as the sensor, and (c) eliminating the analyte from the environment around the sensor during storage. The present invention also includes removal of interfering components from the exhaled breath, such as carbon dioxide, as well as a thermal management technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.