Ammonia sensor using wavelength modulation spectroscopy
US9121838B2 · kind B2 · utility
2Cited by
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36Claims
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Key dates
| Filing date | Feb 25, 2014 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Mar 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ammonia sensor can include a laser detector configured to provide stable sample readings. The sensor can implement a method including processing the recorded intensity of the laser beam to determine a first harmonic component and a second harmonic component and the amount of ammonia in the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.