Spectrophotometric probe

Details Spectrophotometric probe Spectrophotometric probe

1992-09-29

1994-08-02

Rosenberger, Richard A.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356440, G01N 2105, G01N 2159

Patent

active

053350677

ABSTRACT:
A support structure bearing at least one probe for making spectrophotometric measurements of a fluid using a source of light and a spectrophotometer. The probe includes a housing with two optical fibers and a planoconvex lens. A sleeve bearing a mirror surrounds the housing. The lens is separated from the mirror by a fixed distance, defining an interior space for receiving a volume of the fluid sample. A plurality of throughholes extending through the sleeve communicate between the sample volume and the exterior of the probe, all but one hole bearing a screen. A protective jacket surrounds the probe. A hollow conduit bearing a tube is formed in the wall of the probe for venting any air in the interior space when fluid enters. The probe is held at an acute angle so the optic fibers carrying the light to and from the probe are not bent severely on emergence from the probe.

REFERENCES:
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patent: 3560099 (1971-02-01), Boe et al.
patent: 3740155 (1973-06-01), Keller et al.
patent: 3746864 (1973-07-01), Tick et al.
patent: 3819278 (1974-06-01), Muller
patent: 3849002 (1974-11-01), Hach
patent: 4514257 (1985-04-01), Karlsson et al.
patent: 4561779 (1985-12-01), Nagamune et al.
patent: 4725148 (1988-02-01), Endo et al.
patent: 4740709 (1988-04-01), Leighton et al.
patent: 4872356 (1989-10-01), Barnett et al.
patent: 5046854 (1991-09-01), Weller et al.

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