Gas sensor
US10859523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Mar 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a gas sensor for detecting hydrogen gas in a measurement gas atmosphere, including: a first installation part defining a first inner space in communication with the measurement gas atmosphere through a solid electrolyte membrane member; a second installation part defining a second inner space in direct communication with the measurement gas atmosphere; first and second sensor elements respectively installed in the first and second inner spaces; and a calculation unit configured to calculate the concentration of the hydrogen gas according to a potential between the first and second sensor elements. The gas sensor further includes a current detecting portion that detects a current flowing through the first and second sensor elements. The calculation unit is configured to, when the current detected by the current detecting portion is larger than or equal to a threshold value, judge that the hydrogen gas is present at high concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.