Spectrographic analysis instrument and method based on discontinuum theory
US5912730A · kind A · utility
6Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Nov 4, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method and apparatus for analyzing an unknown material, the spectra of absorption and remission coefficients are determined by means of equations relating to remission, absorption and transmission fractions through layers of material of different thicknesses in accordance with a discontinuum theory. To determine the concentration of an absorber in an unknown material, the absorption coefficients are determined for the unknown material and for samples of known material. The concentrations of absorbers in the unknown material are determined from the absorption coefficients by regression analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.