OPTICAL MONITORING METHOD
First Claim
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1. A method of monitoring a substrate comprising:
- (a) providing a mixture containing a plurality of dyes each having an optical property which is sensitive to an external factor, wherein said optical properties of the different dyes are individually monitorable;
(b) enabling the mixture of dyes to interact with the substrate which provides said external factor, thereby influencing said optical properties of the dyes;
(c) monitoring said optical properties of said plurality of dyes to provide a corresponding plurality of output signals; and
(d) subjecting said plurality of output signals to a pattern recognition method, thereby to characterise the substrate or a parameter or condition thereof.
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Abstract
A mixture of dyes each having an optical property (e.g. fluorescence intensity) which is sensitive to an external factor is caused to interact with a system that is to be monitored, such that the system provides the external factor and therefore influences the optical properties of the dyes. The optical properties of the individual dyes are individually measurable (e.g. being spectral intensities at different wavelengths). Their values are subjected to pattern analysis, e.g. using an artificial neural network analysis, leading to an output that characterises the system or its state.
19 Citations
15 Claims
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1. A method of monitoring a substrate comprising:
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(a) providing a mixture containing a plurality of dyes each having an optical property which is sensitive to an external factor, wherein said optical properties of the different dyes are individually monitorable; (b) enabling the mixture of dyes to interact with the substrate which provides said external factor, thereby influencing said optical properties of the dyes; (c) monitoring said optical properties of said plurality of dyes to provide a corresponding plurality of output signals; and (d) subjecting said plurality of output signals to a pattern recognition method, thereby to characterise the substrate or a parameter or condition thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification