Ultrasonic flowmeter with a flow path inner wall surface with a draft of a mold for integral molding
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United States of America Patent
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Oct 31, 2023
Grant Date -
N/A
app pub date -
Jul 25, 2019
filing date -
Aug 31, 2018
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Abstract
An ultrasonic flowmeter includes a measurement flow path and a pair of ultrasonic sensors arranged upstream and downstream on a first surface of the measurement flow path. In addition, the ultrasonic flowmeter includes a flow rate calculator that detects a flow rate of a fluid to be measured based on a propagation time until ultrasonic signals transmitted from one of the ultrasonic sensors propagate with one or more reflections on a second surface of the measurement flow path facing the first surface, and are received by the other one of the ultrasonic sensors. Furthermore, the measurement flow path has an inner wall surface provided with a draft of a mold for integral molding, and the ultrasonic sensors are fixed to the measurement flow path, incident angles of ultrasonic signals transmitted from the ultrasonic sensors on reflection surface of the second surface where the ultrasonic signals are reflected being equal.
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