Two-channel ultrasonic water flowmeter based on time difference method

For the small and medium diameter mono ultrasonic flowmeter due to the small number of channels vulnerable to uneven flow field distribution, a dual-channel ultrasonic water flowmeter based on the time difference method is proposed. The hardware system of the flowmeter consists of STM32L431 low-powe...

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Main Authors: Liu Wei, Qin Huibin
Format: Article
Language:zho
Published: National Computer System Engineering Research Institute of China 2023-01-01
Series:Dianzi Jishu Yingyong
Subjects:
Online Access:http://www.chinaaet.com/article/3000157975
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author Liu Wei
Qin Huibin
author_facet Liu Wei
Qin Huibin
author_sort Liu Wei
collection DOAJ
description For the small and medium diameter mono ultrasonic flowmeter due to the small number of channels vulnerable to uneven flow field distribution, a dual-channel ultrasonic water flowmeter based on the time difference method is proposed. The hardware system of the flowmeter consists of STM32L431 low-power module, high-precision timing module TDC-GP22 and other components. According to the dual-channel pipe segment structure, the data fusion method based on Kalman filter algorithm is proposed to fuse the measurement data of the two channels and complete the filtering process, which improves the measurement accuracy of the flowmeter. The experimental test shows that the flowmeter measurement error is within 2.5%, and the Kalman fusion filtering algorithm can effectively improve the flowmeter measurement accuracy.
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spelling doaj.art-a742e0ecce7f40b7a76cdda0e7fa50572023-11-30T09:14:31ZzhoNational Computer System Engineering Research Institute of ChinaDianzi Jishu Yingyong0258-79982023-01-01491586210.16157/j.issn.0258-7998.2229533000157975Two-channel ultrasonic water flowmeter based on time difference methodLiu Wei0Qin Huibin1Institute of New Electron Device and Application,Hangzhou Dianzi University,Hangzhou 310018,ChinaInstitute of New Electron Device and Application,Hangzhou Dianzi University,Hangzhou 310018,ChinaFor the small and medium diameter mono ultrasonic flowmeter due to the small number of channels vulnerable to uneven flow field distribution, a dual-channel ultrasonic water flowmeter based on the time difference method is proposed. The hardware system of the flowmeter consists of STM32L431 low-power module, high-precision timing module TDC-GP22 and other components. According to the dual-channel pipe segment structure, the data fusion method based on Kalman filter algorithm is proposed to fuse the measurement data of the two channels and complete the filtering process, which improves the measurement accuracy of the flowmeter. The experimental test shows that the flowmeter measurement error is within 2.5%, and the Kalman fusion filtering algorithm can effectively improve the flowmeter measurement accuracy.http://www.chinaaet.com/article/3000157975 kalman filterfusion methodultrasoundflowmeterbinaural
spellingShingle Liu Wei
Qin Huibin
Two-channel ultrasonic water flowmeter based on time difference method
Dianzi Jishu Yingyong
kalman filter
fusion method
ultrasound
flowmeter
binaural
title Two-channel ultrasonic water flowmeter based on time difference method
title_full Two-channel ultrasonic water flowmeter based on time difference method
title_fullStr Two-channel ultrasonic water flowmeter based on time difference method
title_full_unstemmed Two-channel ultrasonic water flowmeter based on time difference method
title_short Two-channel ultrasonic water flowmeter based on time difference method
title_sort two channel ultrasonic water flowmeter based on time difference method
topic kalman filter
fusion method
ultrasound
flowmeter
binaural
url http://www.chinaaet.com/article/3000157975
work_keys_str_mv AT liuwei twochannelultrasonicwaterflowmeterbasedontimedifferencemethod
AT qinhuibin twochannelultrasonicwaterflowmeterbasedontimedifferencemethod