Probe for transmitting light through a fluid

Details Probe for transmitting light through a fluid Probe for transmitting light through a fluid

1991-08-01

1993-01-26

Lee, John D.

Optical waveguides

Miscellaneous

385141, G02B 600

Patent

active

051827913

ABSTRACT:
The present device is a light transmission probe which is designed to transmit light through a fluid, which is held by a tank or in a pipe or the like. By analyzing the change in amplitude and/or frequency of the light transmitted, certain parameters of the fluid can be determined. The present light transmission probe, in a preferred embodiment, includes a sapphire rod or window as the light conducting medium. Further, in a preferred embodiment, the sapphire rod has a layer of titanium molymanganese metallized to its lengthwise surface and the metallized larger is fused to the inside cylindrical aperture of a stainless steel housing. The combination just described provides a probe which does not react to the presence of chemicals normally used in the chemical industry and can withstand relatively high pressures and relatively high temperatures.

REFERENCES:
patent: 4834497 (1989-05-01), Angel
patent: 4988163 (1991-01-01), Cohen et al.
patent: 5061026 (1991-10-01), Clarke et al.

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