High sensitivity absorptiometer

Details High sensitivity absorptiometer High sensitivity absorptiometer

1977-02-11

1978-06-13

Corbin, John K.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

353 52, G01N 2122

Patent

active

040946096

ABSTRACT:
A high sensitivity absorptiometer comprises a light source lamp accompanied inevitably with heat generation, a sample container through which the light from the light source is transmitted and a detector device for detecting the light which has transmitted through the sample container. The light emitted from the light source lamp and directed to the sample container is adapted to pass through a chamber which is formed fluid-tight on a surface portion of the light source lamp or through a solid state optical conductor such as optical fiber having a light inlet end face closely fitted to the surface portion of the lamp, thereby to suppress movement and turbulence of air as caused by heat generated by the light source lamp with a view to excluding noise and drift ascribable to the air movement or turbulence phenomenon from the signal obtained from the detector device.

REFERENCES:
patent: 2033038 (1936-03-01), Lee
patent: 3730627 (1973-05-01), Kent
patent: 3778162 (1973-12-01), Gant et al.

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