Gas detection apparatus and gas detection method
US9182366B2 · kind B2 · utility
20Cited by
5References
9Claims
0Family size
Assignee
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Key dates
| Filing date | May 23, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/128
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas is detected using a MEMS gas sensor. The electrical power to a heater in the gas sensor is changed between a low level, a high level suitable for detection of detection target gas, and a 0 level, and, therefore, poisonous gas is evaporated or oxidized at the low level, and the detection target gas is detected at the high level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.