Probe for liquid sample analysis by light transmission

Details Probe for liquid sample analysis by light transmission Probe for liquid sample analysis by light transmission

1994-02-25

1995-05-23

Rosenberger, Richard A.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356442, G01N 2101, G01N 2159

Patent

active

054186153

ABSTRACT:
A probe for liquid sample analysis is disclosed which causes radiation to pass through the sample at a gap formed in the probe housing. A single radiation transmission is used to avoid problems of radiation back scatter and sample reliability. Windows are provided on opposite sand and and and and and and ides of the gap to accommodate the shape of the beam in the gap, which may either be collimated, or focused in the gap. A retroreflector may be used to reverse the radiation direction in the probe. The light to and from the probe is preferably transmitted by optical fiber cables. Within the probe, light guides other than optical fibers may be used.

REFERENCES:
patent: 3164663 (1965-01-01), Gale
patent: 4534651 (1985-08-01), Minikane
patent: 4893935 (1990-01-01), Mandel et al.
patent: 4989942 (1991-02-01), Koenigsberg et al.

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