Monofibre optical meter for chemical measurement

Details Monofibre optical meter for chemical measurement Monofibre optical meter for chemical measurement

2011-01-25

2011-01-25

Lyons, Michael A (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

Reexamination Certificate

active

07876447

ABSTRACT:
Apparatus for determining a parameter of a sample has an optical sensor in the form of a monofibre waveguide having a distal end coated with a film that is placed in a sample. The waveguide has an input channel connected to a radiation light source and an output channel connected to a photodiode and amplifier to receive signals representative of the interference patterns created at the interface between the film and the sample. A computer receives the signals via an analogue to digital converter for processing the information and providing a measurement of the parameter. The measurement of the parameter may be used to control a process or system.

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