Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Patent
1998-09-17
1999-09-14
Dougherty, Elizabeth L.
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
G01F 120
Patent
active
059525835
ABSTRACT:
A method of measuring a horizontal average flow velocity at a plurality of depths using an ultrasonic beam to obtain the flowrate of a river comprises steps of emitting continuous ultrasonic beams along a selected flowrate measuring free crosssection from one skirt of a river and measuring a moving distance of paired ultrasonic receiving transducers spaced away in an interval from each other until the outputting voltages of the paired ultrasonic receiving transducers become equal to each other and then measuring a horizontal average flow velocity, in which the paired ultrasonic receiving transducers are electrically connected to differential amplifiers in order to measure the position at a moment that their outputting voltage differences becomes zero, and furthermore steps of testing and correcting an apparatus for performing the method.
REFERENCES:
patent: 3546935 (1970-12-01), Bruha
patent: 3564912 (1971-02-01), Malone et al.
patent: 4094193 (1978-06-01), Gerlach
patent: 5515721 (1996-05-01), Kim et al.
patent: 5734111 (1998-03-01), Soo
patent: 5780747 (1998-07-01), Soo
patent: 5804739 (1998-09-01), Hermann et al.
Chang Min Tech Co., Ltd.
Dougherty Elizabeth L.
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