Portable photometer
AssigneePortalab Instruments Limited
InventorsGraham A. W. Rook, Colin H. Cameron
Life of this patent
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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.
Claims5
A photometer for measuring the transmission properties of a fluid contained in a container having a transparent bottom, said photometer comprising:
- a monochromatic light source of a fixed wavelength;
- a source of direct current connected to said monochromatic light source;
- a collimator assembly for said light source to form a collimated, narrow beam of light;
- a moveable tubular member having a base containing said light source and said collimator assembly;
- a locating member arranged to contact the top of the container and to thereby locate the end of the tubular member at a predetermined position with respect to the transparent bottom of said container;
- a photodetector device positioned beneath said container and arranged to receive said collimated, narrow beam of light.
Dependencies are inferred from the claim text.