Uncertainty control method for flow calibration by using high-temperature ultrasonic flowmeter

Uncertainty control method for flow calibration by using high-temperature ultrasonic flowmeter

The invention discloses an uncertainty control method for flow calibration by using a high-temperature ultrasonic flowmeter, which comprises the following steps: firstly, calibrating the qualified high-temperature ultrasonic flowmeter by using an ASME flow nozzle which is verified to be qualified, a...

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Hauptverfasser: CHEN HUIYONG, WEI LIANGWEI, XUE ZHIHENG, SUN WEIJIA, YANG KE
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
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creator CHEN HUIYONG
WEI LIANGWEI
XUE ZHIHENG
SUN WEIJIA
YANG KE
description The invention discloses an uncertainty control method for flow calibration by using a high-temperature ultrasonic flowmeter, which comprises the following steps: firstly, calibrating the qualified high-temperature ultrasonic flowmeter by using an ASME flow nozzle which is verified to be qualified, and the calibration process is required to be carried out in the same pipeline environment as a calibrated working medium; secondly, selecting an optimal ultrasonic flowmeter to calibrate a measuring point; secondly, accurately measuring pipeline parameters, such as pipeline diameter and wall thickness, which have important influence on flow calculation; thirdly, a dual-track measurement technology is adopted for the same measurement point; and finally, the measurement environment condition of the working medium in the calibration and calibration process is controlled, and high-precision calibration of the flow device which is inconvenient to disassemble in the power station is achieved. By means of the method, the
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subjects MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
PHYSICS
TESTING
title Uncertainty control method for flow calibration by using high-temperature ultrasonic flowmeter
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