Fibre optic sensor with bonded dye
AssigneeImperial Chemical Industries PLC
InventorsJohn H. W. Cramp, Robert T. Murray, Robert F. Reid, Roy M. Mortier
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Abstract
For detecting changes in chemical or physical parameters an optical fibre core has bonded to its surface a chromophore responsive to the parameter. The core preferably has a porous surface with the chromophore coating extending into the porous structure.
Claims10
An optical sensor comprising an optical fibre core and a sensitive chromophore chemically bonded to the surface of the said core, the chromophore being variable in colour, in response to changes in a predetermined chemical or physical parameter, in combination with fibre optic means for launching light into the sensor and for collecting the light after it has been transmitted through the sensor;
- whereby on being passed through the sensor, light is modified according to the colour response of the chromophore to the parameter to which the chromophore is sensitive.
Dependencies are inferred from the claim text.