Photoacoustic sensor with baseline and span correction
US9086364B2 · kind B2 · utility
3Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1704
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photoacoustic detector wherein a detector response transfer function can be measured at various times under predetermined conditions during the life of the detector. One or more of the time related transfer functions each can, when acquired, be compared to the stored initial transfer function established at initial manufacture and calibration of the detector. Span and baseline correction values can be determined. These values can be used to compensate detected output values during normal operation. Time related transfer functions can be compared to each other as well as to the stored initial transfer function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.