Methane sensor automatic baseline calibration
US11549924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for baseline calibration of methane sensor includes receiving data characterizing methane detection by a sensor and sensor measurement parameters. The received data characterizing methane detection includes a plurality of methane measurements and detection times associated with the plurality of methane measurements. The method also includes determining a first plurality of calibrated methane measurements by at least calibrating the plurality of methane measurement based on the sensor measurement parameters and one or more of a humidity and a temperature associated with the sensor. The method further includes calculating an offset parameter based on a difference between a global baseline reference and one of a previous baseline value and a measurement baseline value associated with the first plurality of calibrated methane measurements. The method also includes providing a second plurality of calibrated methane measurements by at least subtracting the offset parameter from the first plurality of calibrated methane measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.