Self-calibrating gas detector and method
US7640783B2 · kind B2 · utility
3Cited by
5References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Oct 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable, calibratible gas detector includes a multi-position gas inflow limiting orifice. When this orifice is in a calibrating position, a source of calibrating gas can be activated to provide a quantity of gas that diffuses into ambient atmosphere flowing through the orifice. The calibration gas can then be sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.