Portable photometer

Details Portable photometer Portable photometer

1980-12-08

1983-07-12

Arnold, Bruce Y.

Optics: measuring and testing

By shade or color

Fluid color transmission examination

G01N 2127

Patent

active

043927467

ABSTRACT:
A portable photometer for measuring the transmission properties of a fluid contained in a container having a transparent bottom is disclosed which is characterized in that there is provided: a monochromatic light source and a collimator assembly, both of which are contained within the base of a moveable member; a locating member arranged to contact the top of the container to thereby locate the end of the tubular member at a predetermined position with respect to the bottom of the container; and a photodetector device positioned beneath the container to receive the light from the collimator.

REFERENCES:
patent: 3580683 (1971-05-01), Schulkind
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4003662 (1977-01-01), Retzer et al.
patent: 4193694 (1980-03-01), Smith

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