Identification of combustible gas species via pulsed operation of a combustible gas sensor
US10234412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2016 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combustible gas sensor includes a first sensing element, which includes a catalyst and a heating element in operative connection with the catalyst to heat the catalyst above a temperature to combust gas analytes of interest, and electronic circuitry in operative connection with the heating element of the first sensing element to periodically cycle the first sensing element between a temperature above the temperature to combust the analytes of interest and a temperature at which the catalyst is substantially inactive to catalyze oxidative combustion of the analytes of interest. The electronic circuitry is adapted to determine a species of at least one of the gas analytes of interest from a first output of the combustible gas sensor during an ON time within a cycle duration. The electronic circuitry is further adapted to determine a concentration of the species of gas from a second output of the combustible gas sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.