Rayleigh measurement system and Rayleigh measurement method
US10620019B2 · kind B2 · utility
1Cited by
2References
6Claims
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Key dates
| Filing date | Mar 11, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Apr 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Initial data and target data are frequency-analyzed to obtain an initial Rayleigh-scattering spectrum (RSS) and a target RSS, respectively. A distance correction is performed for the target RSS by comparing the target RSS with the initial RSS, and a Rayleigh spectrum shift is determined on the basis of a correlation coefficient between the initial RSS and the target RSS after distance-corrected.
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