Automated system and method for spectroscopic analysis
US6549861B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Mar 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2866
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automated method for modeling spectral data is provided, wherein the spectral data generated by one of diffuse reflectance, clear transmission, or diffuse transmission. The method includes accessing a set of spectral data, the set of spectral data including, corresponding spectral data for each of a plurality of samples, the spectral data for each of the plurality of samples having associated therewith at least one constituent value, the at least one constituent value being a reference value for a target substance in the sample which is measured by a independent measurement technique. A plurality of data transforms are applied to the set of spectral data to generate, for each sample, a set of transformed and untransformed spectral data. The set of transformed and untransformed spectral data, with its associated constituent values, is divided into a calibration sub-set and a validation sub-set, and one or more of a partial least squares, a principal component regression, a neural net, or a multiple linear regression analysis is applied to the transformed and untransformed calibration data sub-sets to obtain corresponding modeling equations for predicting the amount of the target …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.