The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1998
Filed:
Dec. 18, 1995
Chang Hak Soo, Seoul, KR;
Changmin Co., Ltd., Seoul, KR;
Abstract
A measurement method for distances between ultrasonic transducers installed on opposite banks of a river or open water channel is provided. Ultrasonic transducer clusters having two transducers spaced by a known distance are used for multichannel ultrasonic flowrate measurement. The distance between ultrasonic transducers installed in the water on both sides of the river is determined by the measurement of the horizontal average flow velocity directly by ultrasonic waves. A calibration and testing method is provided for the distance between two ultrasonic transducers included in the clustered ultrasonic transducer for the calibration and testing method of the flowrate measurement error for a multichannel ultrasonic flowrate measurement system, and for the clustered ultrasonic transducer apparatus.
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