Howard L Ogushwitz

US Patent:

52355594, Aug 10, 1993

Filed:

Jun 1, 1992

Appl. No.:

7/891266

Inventors:

Paul R. Ogushwitz - Denville NJ
Howard L. Ogushwitz - Storrs CT

International Classification:

G01S 1500

US Classification:

367 99

Abstract:

The invention generally pertains to apparatus for determining bedload thickness of a bedload on a bed surface in an aquatic medium. An acoustic source is operative when energized for producing incident acoustic waves in the medium directed at the bed surface resulting in reflected waves. An acoustic sensor is movably locatable between the acoustic source and the bed surface and is responsive to the incident and reflected waves for producing a variable output representative of the sum of the incident and reflected waves. The sum varies between a maximum and a minimum with distance from the bed surface. A height sensor is responsive to the position of the acoustic sensor relative to the bedload thickness for producing an output indicative thereof. A processor responsive to the acoustic sensor output and the height sensor output produces an output indicative of the thickness of the bedload thickness. A method for determining bedload thickness is disclosed as well as a model for simulating the bedload in a non-aquatic medium.