Optics: measuring and testing – By particle light scattering – With photocell detection
Reexamination Certificate
2005-01-11
2005-01-11
Stafira, Michael P. (Department: 2877)
Optics: measuring and testing
By particle light scattering
With photocell detection
Reexamination Certificate
active
06842243
ABSTRACT:
A small size turbidity sensor for underwater in-situ measurements in the wide range of turbidity values is disclosed that may be integrated into a housing with other underwater sensors. The turbidity sensor incorporates micro focusing devices and light stop that gives no divergence excitation beam with convergence less than 1.5 degrees and the measuring angle between the optical axis of the incident radiation and mat of the diffused radiation 90 ±2.5 degrees. Another embodiment includes internal and external optical calibrators that allows the sensor to work longer without human intervention.
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International Search Report dated Jun. 30, 2004.
Goin José
Owen Christopher
Skirda Anatoly
Slobodyan Viktor
Tokhtuev Eugene
A. Marquez, Esq. Juan Carlos
Apprise Technologies, Inc.
Fisher Esq. Stanley P.
Stafira Michael P.
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