Title :
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
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;
Conference_Titel :
SICE Annual Conference (SICE), 2011 Proceedings of
Conference_Location :
Tokyo
Print_ISBN :
978-1-4577-0714-8
