Optical flow meter

Details Optical flow meter Optical flow meter

G - Physics

01

F

354/31, 73/59

G01F 1/704 (2006.01) G01F 1/708 (2006.01) G01P 5/20 (2006.01)

Patent

CA 1332980

Flow meter which is used to measure the volume flow of fluid in a pipe. A light source (e.g. a semiconductor diode laser) illuminates scattering particles suspended in the fluid. A lens images the scattered light onto a multi-element photodetector. A digital processor interfaced to the detector calculates a time-delayed spatial correlation function, and hence the magnitude and direction of the flow velocity at one or more points in the pipe.

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