METHOD FOR DEFINITION OF A FLUID STREAM RATE Russian patent published in 2005 - IPC

FIELD: measuring technique.

SUBSTANCE: the invention presents a method for definition of a fluid stream rate, is dealt with the field of measuring technique. The method provides for visualization of a flow structure and definition of a fluid stream rate by a rate of transportation of marks irregularly existing on the visualized plotting. Visualization of a stream structure is realizes with the help of the infrared imager using formation of a thermal image based on infra red emission of the stream surface. The method provides for registration of the existing on the stream surface local fields of natural fluctuations of temperature in respect to its background value and on the produced thermal image marks by contour lines the zones with a characteristic temperature relief formed by the local fields. The rate of the stream is determined by local speeds of motion in direction of the stream movement of the contours points of these zones occupying different transversal positions on the stream thermal image of the surface of the stream. The technical result is increased accuracy of definition of the fluid stream rate with a displaced field of speeds.

EFFECT: the invention ensures increased accuracy of definition of the fluid stream rate with a displaced field of speeds.

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