Estimation by regularized process tomography of partially filled flow with electro-magnetic induction

Author

Sakuratani, Miki ; Honda, Satoshi

Author_Institution

Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan

fYear

2011

fDate

13-18 Sept. 2011

Firstpage

2335

Lastpage

2340

Abstract

Electromagnetic flowmeters have been one of the standard instrument to measure the conductive liquid flowrate in industry. It is possible to evaluate velocity profiles through the proper design of the magnetic field and the electrodes. In this study, we try to reconstruct the flow field in partially filled pipes (open channels) by using the weight vector corresponding to the water level, which is an expansion from fully filled flow tomography. The accuracy is improved by regularization technique and multiple regularization parameters are optimized rapidly by minimizing Minimum Distance Function related to an L-surface.

Keywords

channel flow; electrodes; electromagnetic devices; electromagnetic induction; flow measurement; flowmeters; pipe flow; tomography; L-surface; electrodes; electromagnetic flowmeters; electromagnetic induction; filled flow tomography; magnetic field; minimum distance function minimization; multiple regularization parameters; partially filled pipe flow; regularized process tomography; water level; Accuracy; Boundary conditions; Electrodes; Electromagnetics; Noise; Noise level; Tomography; Electromagnetic Flowmeter; Flow Tomography; Inverse Problem;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference (SICE), 2011 Proceedings of

Conference_Location

Tokyo

ISSN

pending

Print_ISBN

978-1-4577-0714-8

Type

conf

Filename

6060364