Variable path length light transmission probe

Details Variable path length light transmission probe Variable path length light transmission probe

1991-09-26

1994-04-12

McGraw, Vincent P.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356436, 359838, G01N 2100, G01N 2115

Patent

active

053030362

ABSTRACT:
A probe for use in situ analysis of light absorbing fluids wherein light emitted from a source is collimated by a lens and transmitted through a fluid onto and substantially perpendicular to a reflector. Light is reflected by the reflector back through the fluid and focused by the lens onto a reflected light collector for transmission to analyzing apparatus. The length of the path traversed by the emitted and reflected light is adjustable.

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patent: 4081807 (1978-03-01), Urano et al.
patent: 4579457 (1986-04-01), Guigues
patent: 4637729 (1987-01-01), Schoch
patent: 4678326 (1987-07-01), Harjunmaa
patent: 4753530 (1988-06-01), Knight et al.
patent: 4786171 (1988-11-01), LeFebre et al.

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