Gas sensor
US9546948B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Dec 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/067
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensor is proposed, which can detect a gas by a novel configuration while reduction in size is achieved. The gas sensor (1) does not need a light absorption path as in a prior art so that the size can be reduced correspondingly. Further, in the gas sensor (1), a gas is absorbed in an ionic liquid (IL), and a dielectric constant of the ionic liquid (IL) that changes by absorbing the gas can be measured according to a change in light intensity that occurs by a surface plasmon resonance phenomenon in a metal layer (7). Thus, the gas sensor (1) including the novel configuration that can detect a gas based on the change in the light intensity can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.