Methods and devices for optically determining a characteristic of a substance
First Claim
1. A method of determining a desired characteristic of a sample, comprising:
- optically interacting an electromagnetic radiation source with the sample and at least two integrated computational elements, wherein at least one of the at least two integrated computational elements is configured to be disassociated with the desired characteristic of the sample and to return a regression vector associated with a second characteristic of the sample different from the desired characteristic of the sample, and wherein at least one of the at least two integrated computational elements comprises at least two adjacent layers of material having different indices of refraction;
producing optically interacted light from the at least two integrated computational elements;
receiving with at least one detector the optically interacted light from the at least two integrated computational elements, thereby generating a first signal and a second signal; and
computationally combining the first and second signals to determine the desired characteristic of the sample.
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Abstract
Optical computing devices are disclosed. One exemplary optical computing device includes an electromagnetic radiation source configured to optically interact with a sample and at least two integrated computational elements. The at least two integrated computational elements may be configured to produce optically interacted light, and at least one of the at least two integrated computational elements may be configured to be disassociated with a characteristic of the sample. The optical computing device further includes a first detector arranged to receive the optically interacted light from the at least two integrated computational elements and thereby generate a first signal corresponding to the characteristic of the sample.
139 Citations
20 Claims
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1. A method of determining a desired characteristic of a sample, comprising:
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optically interacting an electromagnetic radiation source with the sample and at least two integrated computational elements, wherein at least one of the at least two integrated computational elements is configured to be disassociated with the desired characteristic of the sample and to return a regression vector associated with a second characteristic of the sample different from the desired characteristic of the sample, and wherein at least one of the at least two integrated computational elements comprises at least two adjacent layers of material having different indices of refraction; producing optically interacted light from the at least two integrated computational elements; receiving with at least one detector the optically interacted light from the at least two integrated computational elements, thereby generating a first signal and a second signal; and computationally combining the first and second signals to determine the desired characteristic of the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16, 17, 18, 19, 20)
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9. A method of determining a desired characteristic of a sample, comprising:
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optically interacting an electromagnetic radiation source with a sample and at least two integrated computational elements, wherein at least one of the at least two integrated computational elements comprises at least two adjacent layers of material having different indices of refraction; producing optically interacted light from the at least two integrated computational elements, wherein at least one of the at least two integrated computational elements is configured to be disassociated with the desired characteristic of the sample and return a regression vector associated with a second characteristic of the sample different from the desired characteristic of the sample; and receiving with at least one detector the optically interacted light from the at least two integrated computational elements, thereby generating a first signal corresponding to the desired characteristic of the sample. - View Dependent Claims (10, 11, 12)
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13. A method of determining a desired characteristic of a sample, comprising:
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optically interacting electromagnetic radiation radiated from the sample with at least two integrated computational elements, wherein at least one of the at least two integrated computational elements comprises at least two adjacent layers of material having different indices of refraction; producing optically interacted light from the at least two integrated computational elements, at least one of the at least two integrated computational elements being configured to be disassociated with the desired characteristic of the sample and to return a regression vector associated with a second characteristic of the sample different from the desired characteristic of the sample; and receiving with at least one detector the optically interacted light from the at least two integrated computational elements, thereby generating a first signal corresponding to the desired characteristic of the sample. - View Dependent Claims (14, 15)
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Specification