Journal of South China University of Technology (Natural Science Edition) ›› 2018, Vol. 46 ›› Issue (7): 94-99,108.doi: 10.3969/j.issn.1000-565X.2018.07.013

• Mechanical Engineering • Previous Articles     Next Articles

Design of 3D Multi-Path Model for Transit-Time Ultrasonic Flow-meter

CHEN Guoyu LIU Guixiong   

  1.  School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2018-02-05 Revised:2018-04-27 Online:2018-07-25 Published:2018-06-01
  • Contact: 陈国宇( 1990-) ，男，博士生，主要从事精密检测与仪器仪表研究 E-mail:mechenguoyu@hotmail.com
  • About author:陈国宇( 1990-) ，男，博士生，主要从事精密检测与仪器仪表研究
  • Supported by:
     Supported by the Science and Technology Planning Project of Guangdong Province ( 2016A040403044)

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Abstract: Focusing on the problems such as low track coverage and weak adaptability to the irregular flow field in the current symmetrical track model of transit-time ultrasonic flow-meter，the design theory of 3D multi-path model is explored． Firstly，the formula for calculating the minimum number of paths satisfying the expected coverage is deduced． The distance between each path and the center of the pipeline is solved． The number of paths and the number of 2D track model are calculated． The angle between adjacent path segments of a 2D track model of a single path is calculated． Then，the coordinates of multi-path topology node are solved． Finally，multi-path topology is designed． The example calculation and application show that the design method of transit-time ultrasonic flow-meter 3D multi-path model is feasible，advanced and practicable．

Key words: transit-time ultrasonic flow-meter, track coverage, 2D ultrasonic track model, 3D ultrasonic track model

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