ULTRASONIC MULTI-CHANNEL FLOW MEASURING METHOD

ULTRASONIC MULTI-CHANNEL FLOW MEASURING METHOD

An ultrasonic flow rate measuring method comprises steps of measuring an inn er diameter of a pipe in a manner to subtract a corrosive resistance layer and its possible thickness deviation from the maximum deviation of an inner diameter presente d as a pipe size within the range of being able to be...

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1. Verfasser: SU, TYAN KHAK
Format: Patent
Sprache:eng ; fre
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INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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description An ultrasonic flow rate measuring method comprises steps of measuring an inn er diameter of a pipe in a manner to subtract a corrosive resistance layer and its possible thickness deviation from the maximum deviation of an inner diameter presente d as a pipe size within the range of being able to be estimated, measuring a flow rate Q I of the ideal circular section having the measured inner diameter based on the ultrasonic multi-channel flow rate measuring method, calculating a flow rate Q II of the remaining section according to a flow velocity distribution curve and adding the flow rate Q II to the flow rate Q I to calculate a total flow rate Q. Therefore, the method can enhance the accurac y of the flow rate measurement, if the section area of a pipe can't be measured, exactly, and the inner diameter of the pipe has a deviation due to an ovalness.
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subjects INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
title ULTRASONIC MULTI-CHANNEL FLOW MEASURING METHOD
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