Speed measurement device

Details Speed measurement device Speed measurement device

G - Physics

01

P

349/39

G01P 5/00 (2006.01) G01F 1/66 (2006.01) G01P 5/24 (2006.01)

Patent

CA 1331052

ABSTRACT Speed Measurement Device A fluid speed measurement device includes a pair of ultrasonic transducers T1,T2 spaced in a measuring chamber. A transmitter and receiver system is controlled by a microprocessor 100 which generates pulses which periodically invert and these are switched by switches 140,150 to allow alternate direction of transmission. Reception and detection of signals is effected by blocks 152-168. Time calculation is determined by counter 109 and results are used to calculate flow speed or volume using the microprocessor. A speed increase in the measurement region is effected using a venturi device.

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