Self-referencing remote optical probe

Details Self-referencing remote optical probe Self-referencing remote optical probe

1990-02-12

1991-08-13

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

By comparison

356436, 356440, G01N 2105, G01N 2185

Patent

active

050392247

ABSTRACT:
A probe for remote spectrometric measurements of fluid samples having a hollow probe body with a sliding reflective plug therein and a lens at one end, ports for admitting and expelling the fluid sample and a means for moving the reflector so that reference measurement can be made with the reflector in a first position near the lens and a sample measurement can be made with the reflector away from the lens and the fluid sample between the reflector and the lens. Comparison of the two measurements will yield the composition of the fluid sample. The probe is preferably used for remote measurements and light is carried to and from the probe via fiber optic cables.

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patent: 3841765 (1974-10-01), Lambert et al.
patent: 4447546 (1984-05-01), Hirschfield
patent: 4451152 (1984-05-01), Topol et al.
patent: 4519710 (1985-05-01), Luce et al.
patent: 4715710 (1987-12-01), Andersen
patent: 4762798 (1988-08-01), Deutsch

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