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Design of a High Precision Ultrasonic Gas Flowmeter [PDF]
Sensors, 2020 Aiming at the problems of substantial pressure loss, small range ratio and contact measurement in traditional gas flowmeters, this paper designs a new type of data-filtering ultrasonic gas flowmeter. The flowmeter is composed of hardware circuits such as
Jianfeng Chen +3 more
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A Gas Flow Measurement System Based on Lead Zirconate Titanate Piezoelectric Micromachined Ultrasonic Transducer [PDF]
Micromachines, 2023 Ultrasonic flowmeter is one of the most widely used devices in flow measurement. Traditional bulk piezoelectric ceramic transducers restrict their application to small pipe diameters.
Tao Liu +8 more
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Energies, 2021 The transit-time ultrasonic gas flowmeter plays a vital part in the measurement field with its unique advantages. In recent years, it has developed into a research hotspot in the field of gas flow measurement.
Bin Li +3 more
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Applied 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
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Time Delay Study of Ultrasonic Gas Flowmeters Based on VMD–Hilbert Spectrum and Cross-Correlation [PDF]
SensorsThe accuracy of ultrasonic flowmeter time delay measurement is directly affected by the processing method of the ultrasonic echo signal. This paper proposes a method for estimating the time delay of the ultrasonic gas flowmeter based on the Variational ...
Lingcai Kong +4 more
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Beam Drift Mitigation and Wide-Range Measurement in a Miniaturized Ultrasonic Gas Flowmeter [PDF]
MicromachinesTo mitigate acoustic beam drift, which degrades the signal-to-noise ratio (SNR) and limits the measurement range in ultrasonic gas flowmeters (USFMs), we present a miniaturized transit-time USFM that integrates a single piezoelectric micromachined ...
Shanfeng Hou +4 more
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Research on a Hybrid Intelligent Method for Natural Gas Energy Metering [PDF]
Sensors, 2023 In this paper, a Comprehensive Diagram Method (CDM) for a Multi-Layer Perceptron Neuron Network (MLPNN) is proposed to realize natural gas energy metering using temperature, pressure, and the speed of sound from an ultrasonic flowmeter.
Jingya Dong +6 more
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Research on Measurement Error Distribution and Optimization Measurement Method of Clamp-On Ultrasonic Flowmeter in Downstream Pipeline Disturbance [PDF]
SensorsClamp-on ultrasonic flowmeters serve as an important tool for on-site testing of gas flow meters. However, its accuracy is significantly affected by the actual flow field, thus limiting its application scenarios. To address this issue, this study focuses
Zhongzhi Yang +5 more
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Numerical and experimental analysis of flow distortion induced by ultrasonic transducers in gas flowmeters [PDF]
Scientific ReportsThis study investigates the flow field distribution near the transducer and quantifies the distortion of the velocity profile along ultrasonic paths.
Wenlin Chen +5 more
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Sensors, 2018 Ultrasonic flowmeters with a small or medium diameter are widely used in process industries. The flow field disturbance on acoustic propagation caused by a vortex near the transducer inside the sensor as well as the mechanism and details of flow-acoustic
Yanzhao Sun, Tao Zhang, Dandan Zheng
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