Method for measuring optical attenuation in a liquid medium
US9983055B1 · kind B1 · utility
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6References
5Claims
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Key dates
| Filing date | Sep 28, 2017 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4769
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a meter and method of use for measuring an optical attenuation coefficient in a liquid medium. In operation, a collimated beam, produced by a laser of the attenuation meter apparatus, propagates thru the liquid medium with filtered back-scattered light arriving at a camera of the meter. A light image is formed at a focal plane of the camera. The light image is recorded and analyzed by a microcomputer to provide optical beam attenuations coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.