Detector system and method to detect or determine a specific gas within a gas mixture

US8373568B2 · kind B2 · utility

Assignee

• GasSecure AS · NO

Inventors

• Sigurd Moe · Kongsberg, NO
• Niels Peter Ostbo · Oslo, NO
• Knut Sandven · Oslo, NO
• Håkon Sagberg · Oslo, NO

Key dates

• Filing date: Jul 16, 2008
• Grant date: Feb 12, 2013
• Expiry date: Nov 8, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/1704
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

To achieve gas detection in a precise and reliable way, but at the same time without consuming too much energy, a gas detection system is provided which generally comprises a pair of two different gas detectors. The first detector (DLP) is active continuously and sense substantially for an unspecific change in the local gas mixture. As a reaction upon the change, the second detector (DHP) of the pair is activated. This detector (DHP) performs the determination of the concentration of a specific gas or several specific gasses. The second detector (DHP) may be of a type which consumes more power, but will be active for a short period of time before returning to an inactive state where only the first detector (DLP) is active. The first detector (DLP) however is of a type using little power.