Patent ID: 9709696
Date: 2017-07-18
CPC Classifications: E21B,G01J,G01N,G01V,G02B

Claim:
1. An optical computing device to determine a characteristic of a sample, the optical computing device comprising: a first polarizer that optically interacts with electromagnetic radiation to produce first polarized light that optically interacts with a sample to produce sample-interacted light; a first optical element that optically interacts with the sample-interacted light to produce optically-interacted light which corresponds to a characteristic of the sample; a second polarizer that optically interacts with the optically-interacted light to produce second polarized light which corresponds to a first characteristic of the sample, wherein the first and second polarizers produce a polarization state that approximates a multivariate regression vector corresponding to the first characteristic of the sample; and a first detector positioned to measure the second polarized light and thereby generate a first signal utilized to determine the first characteristic of the sample.