Hydrocarbon analysis based on low resolution raman spectral analysis
US5139334A · kind A · utility
48Cited by
16References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Sep 17, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/65
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is disclosed for measuring properties of samples associated with the distribution of hydrocarbons in the sample. The system includes a low resolution laser Raman spectrometer coupled to photodetectors that integrate the intensity of the scattered Raman radiation. The system further includes microprocessor means that separate the Raman spectrum into two spectral ranges, calculates a ratio of the integrated intensities corresponding to these ranges and interpolates that ratio with a correlating function to obtain the measurement of the property of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.