Electromagnetric Tomography (EMT):Theoretical Analysis of the Forward Problem

XIONG Han-liang; XU Ling-an

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 2000 > 21(9): 933-941

XIONG Han-liang, XU Ling-an. Electromagnetric Tomography (EMT):Theoretical Analysis of the Forward Problem[J]. Applied Mathematics and Mechanics, 2000, 21(9): 933-941.

Citation:

XIONG Han-liang, XU Ling-an. Electromagnetric Tomography (EMT):Theoretical Analysis of the Forward Problem[J]. Applied Mathematics and Mechanics, 2000, 21(9): 933-941.

Citation:

XIONG Han-liang, XU Ling-an. Electromagnetric Tomography (EMT):Theoretical Analysis of the Forward Problem[J]. Applied Mathematics and Mechanics, 2000, 21(9): 933-941.

PDF( 383 KB)

Electromagnetric Tomography (EMT):Theoretical Analysis of the Forward Problem

School of Electrical Automation and Energy Engineering, Tianjin University, Tianjin 300072, P R China

Received Date: 1999-01-29
Rev Recd Date: 2000-06-15
Publish Date: 2000-09-15

Abstract

Abstract

Inductance-based electromagnetic tomography(EMT)is a novel industrial process tomographic technique.Exact expressions of the magnetic field distribution in a two-dimensional object space were derived by analytically solving the forward problem for a particular two-component flow. The physical mechanisms within the sensor and the detectability limits of the EMT technique were quantitatively analyzed.Direct mathematical expressions for the field sensitivity and the sensitivity maps were established.To a certain extent,mathematical and theoretical bases are given for quantitative design of the sensor,detectability analysis of the EMT technique and image reconstruction of two-compontnt processes based on the linear back-projection algorithm.
- electrodynamics,
- multi-phase flows,
- tomography,
- sensor technique,
- electromagnetical measurement technique

FullText(HTML)

References(8)

References

[1]	Dickin F J, Hoyle B S, Hunt A, et al. Tomographic imaging of industrial process equipment:techniques and applications[J]. IEE Proc G,1992,139(1):72-82.
[2]	Huang S M, Xie C G, Thorn R, et al. Design of sensor electronics for electrical capacitance tomography[J]. IEE Proc G,1992,139(1):83-88.
[3]	Seager A D, Barging D C, Brown B H. Electrical impedance imaging[J]. IEE Proc A,1987,134(2):201-210.
[4]	Yu Z Z, Peyton A J, Conway W F, et al. Imaging system based on electromagnetic tomography (EMT)[J]. Electron Lett,1993,29(7):625-626.
[5]	Yu Z Z, Peyton A J, Xu L A, et al. Electromagnetic inductance tomography (EMT): sensor, electronics and image reconstruction algorithm for a system with a rotatable parallel excitation field[J].IEE Proc A,1998,145(1):20-25.
[6]	Xie C G, Huang S M, Hoyle B S, et al. Electrical capacitance tomography for flow imaging: system model for development of image reconstruction algorithms and design of primary sensor[J]. IEE Proc G,1992,139(1):89-98.
[7]	Harpen M D. Eddy current distribution in cylindrical samples: effect on equivalent sample resistance[J]. Phys Med Biol,1989,34(9):1229-1238.
[8]	Smythe. Static and Dynamic Electricity[M]. New York: McGraw-Hill,1951.