Electrochemical sensor
US7651597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2004 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Sep 8, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dual gas sensor is described, having first and second working electrodes separated by a gas impermeable portion. The electrodes are preferably located on a gas permeable polymer support, with the gas impermeable portion being formed by compression of the permeable support. The sensor may also include one or more filters for location adjacent the electrodes to filter certain gases from the air. The preferred sensor is able to detect carbon monoxide and hydrogen sulfide. The sensor housing is formed with four connection pins, allowing a standard sensor housing to be used for dual sensors as well as single sensors having a dummy pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.