AN IMPROVED MEASUREMENT ALGORITHM FOR INCREASING THE ACCURACY OF SING-AROUND TYPE ULTRASONIC FLOW METERS

  • J. R. Gatabi Iran Univ. of Science and Tech. Tehran
  • I. R. Gatabi K. N. Toosi- Univ. of Tech.
  • M. Soltani Iran Univ. of Science and Tech.
  • P. Mohammadi Iran Univ. of Science and Tech.
  • M. Dabbaghian Amiri Mazandaran University of Science and Technology
  • S. Ebrahimi Iran Univ. of Science and Tech.
Keywords: measurement algorithm, accuracy of sing-around type ultrasonic flow meters

Abstract

In this paper a new sing-around type flow meter is proposed. Although sing-around type flow meters encounter problems when the flow is not stable, the proposed measurement method is approximately two times more accurate than current ultrasonic sing-around type flow-meters. The device comprises two ultrasonic-based flow-sensitive oscillators, one is installed upstream and another is installed downstream with respect to the flow direction. Unlike existing method, the upstream and downstream oscillators "synchronous-sly" start generating signals for each sampling cycle. The accuracy of the proposed method was compared with the existing method numerically, and its effectiveness was demonstrated with quantitative results.

DOI: http://dx.doi.org/10.5755/j01.mech.18.2.1560

Published
2012-04-20
Section
DESIGN AND OPTIMIZATION OF MECHANICAL SYSTEMS