Gas sensing device and a method for sensing gas
US11079318B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a gas sensing device for sensing a certain gas that is associated with a certain spectral band, the gas sensing device may include a passive gas sensor that is configured to generate passive gas sensor detection signals that are responsive to the certain spectral band; a passive dummy sensor that is configured to generate passive dummy sensor detection signals that are indifferent to the certain spectral hand; and at least one circuit that is configured to detect a presence or absence of the certain gas within a certain volume that is located within the fields of view of the passive gas sensor and the passive dummy sensor based on a comparison between the passive gas sensor detection signals and the passive dummy sensor detection signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.