Accession Number : ADD015950

Title :   Electrode Array Electromagnetic Velocimeter.

Descriptive Note : Patent Application, Filed 18 Mar 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kasper, Rolf G ; Langston, Lee S

Report Date : 18 Mar 1993

Pagination or Media Count : 20

Abstract : A velocimeter for measuring the velocity field characteristics of a conductive fluid moving over a surface is provided. A magnet has a central axis that is aligned with a direction of fluid movement of interest such that a plurality of magnetic flux lines extend generally normal from the surface. A plurality of electrode pairs provide electrical output signals that are proportional to variations in the magnetic flux lines as the conductive fluid flows there-through in accordance with Lorentz forces. Each electrode pair is disposed symmetrically about the central axis of the magnet. The plurality of electrodes are mounted in a fixed relation with the magnet. The electrical output signals from the electrode pairs are processed and displayed as the velocity field characteristics of the fluid in the direction of interest.

Descriptors :   *ELECTRODES, *VELOCIMETERS, *PATENT APPLICATIONS, *ARRAYS, *ELECTROMAGNETIC PROPERTIES, FLUIDS, MAGNETS, OUTPUT, SIGNALS, SURFACES, VARIATIONS, VELOCITY, LIQUIDS, SOLIDS, CONDUCTIVITY, ELECTRICAL PROPERTIES, LORENTZ FORCE, POLARIZATION

Subject Categories : Electricity and Magnetism
      Fluid Mechanics
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE