Results 21 to 30 of about 251,869 (196)

Ultrasonic methods for determining flows and velocity fields [PDF]

open access: yesEPJ Web of Conferences, 2022
This paper introduces research and development of a modern non-invasive device for determining flows and velocity fields. This device is based on the ultrasonic method.
Barraclough Veronika   +5 more
doaj   +1 more source

Multi-Angle Liquid Flow Measurement Using Ultrasonic Linear Array Transducer

open access: yesSensors, 2020
Most ultrasonic flowmeters utilize several wedge sensors for transmission and reception. Thus, the location and alignment of the sensors are critical factors that determine the performance of the ultrasonic flowmeter.
Thi Huong Ly Nguyen, Suhyun Park
doaj   +1 more source

Effect of incident angle on ultrasonic transmission in steam flow for use with clamp-on ultrasonic flowmeter

open access: yesMechanical Engineering Journal, 2020
Energy management in industrial plants requires measurements of the steam flow rates at each usage location. A clamp-on ultrasonic flowmeter can be used to effectively measure the steam flow rates in existing pipes.
Hideki MURAKAWA   +6 more
doaj   +1 more source

A new method for processing ultrasonic gas flowmeter signal in wet gas

open access: yesIET Science, Measurement & Technology, 2021
Gas velocity as an important characteristic parameter of wet gas has become a very active research issue in engineering field. Among many gas velocity measurement techniques, the ultrasonic flowmeter technique is more suitable for actual working ...
Mi Wang   +4 more
doaj   +1 more source

The Investigation on the Flow Distortion Effect of Header to Guarantee the Measurement Accuracy of the Ultrasonic Gas Flowmeter

open access: yesApplied Sciences, 2021
The quantification of the flow distortion effect on the measurement accuracy of the ultrasonic gas flowmeter downstream of the header is important but an area that has been of less concern in the research. By experiments and computational fluid dynamics (
Wenlin Chen, Jianjun Wu, Chunhui Li
doaj   +1 more source

Automatic tracking method of reference waveform of mine ultrasonic gas flowmeter

open access: yesGong-kuang zidonghua, 2022
The accuracy of mine ultrasonic gas flowmeter needs to be improved. The cross-correlation detection signal has 'signal hopping' phenomenon and affects the measurement precision of ultrasonic transit time.
BAI Sizhong
doaj   +1 more source

Influence of steam wetness on steam flow rate measurement using ultrasonic flow meter

open access: yesNihon Kikai Gakkai ronbunshu, 2017
In industrial fields, as the steam is commonly utilized for heat supply, drying process and so on, it is important to be aware of the steam flow rate in the view point of energy management.
Ryo MORITA   +5 more
doaj   +1 more source

Flow Measurement Model of Ultrasonic Flowmeter for Gas-Liquid Two-Phase Stratified and Annular Flows

open access: yesAdvances in Mechanical Engineering, 2014
An error correction model for ultrasonic gas flowmeter was proposed to explore the potential of an ultrasonic flowmeter for metering gas-liquid stratified and annular flows.
Lanchang Xing   +3 more
doaj   +1 more source

Development of an Ultrasonic Airflow Measurement Device for Ducted Air [PDF]

open access: yes, 2015
In this study, an in-duct ultrasonic airflow measurement device has been designed, developed and tested. The airflow measurement results for a small range of airflow velocities and temperatures show that the accuracy was better than 3.5% root mean square
Andrew B. Raine   +9 more
core   +1 more source

Demonstration of Non-Uniformity of Velocity Profiles Using 2D PIV [PDF]

open access: yesMATEC Web of Conferences, 2022
This paper deals with the demonstration of the non-uniformity of velocity profiles in a DN 200 air circular pipe as part of the development of a newly designed tomographic ultrasonic flowmeter. The flowmeter should measure the flow quality independently.
Pulec Jaroslav   +3 more
doaj   +1 more source

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