Apprise Technologies, Inc.

José Goin

Eugene Tokhtuev

Christopher J Owen

Anatoly Skirda

Viktor Slobodyan

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 &#xb1;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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Duluth, MN, United States of America

José Goin