The influence of permittivity models on phantom images obtained from electrical capacitance tomography

Measurement Science and Technology

Volumn 13, Issue 12, 2002, Pages 1822-1830

  McKeen, Timothy R ^a   Pugsley, Todd S ^a  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

Author keywords

Electrical capacitance tomography; Fluidized bed; Image reconstruction; Iterative reconstruction; Linear back projection; Maxwell model; Parallel model; Phantom; Relative permittivity; Series model; Voidage

Indexed keywords

CAPACITANCE; CATALYSTS; FLUIDIZED BEDS; PERMITTIVITY;

PACKED-BED RELATIVE PERMITTIVITY;

TOMOGRAPHY;

ELECTRICAL TECHNIQUE; FLUIDIZED BED; IMAGING METHOD; PERMEABILITY; TOMOGRAPHY;

EID: 0036995602     PISSN: 09570233     EISSN: None     Source Type: Journal    
DOI: 10.1088/0957-0233/13/12/304     Document Type: Article

References (17)

1. Dyakowski T, Edwards R B, Xie C G and Williams R A 1997 Application of capacitance tomography to gas-solids flows Chem. Eng. Sci. 52 2099-110
2. Yang W Q, Gamio J C and Beck M S 1997 A fast iterative image reconstruction algorithm for capacitance tomography Sensors and their Applications vol 8 pp 47-52
3. Yang W Q, Spink D M, York T A and McCann H 1999 An image-reconstruction algorithm based on Landweber's iteration method for electrical-capacitance tomography Meas. Sci. Technol. 10 1065-9
4. Dyakowski T, Jeanmeure L F C and Jaworski A J 2000 Applications of electrical tomography for gas-solids and liquid-solids flows-a review Powder Technol. 112 174-92
5. Maxwell J C 1873 A Treatise on Electricity and Magnetism vol 1 (Oxford: Clarendon)
6. Wiesendorf V and Werther J 2000 Capacitance probes for solids volume concentration and velocity measurements in industrial fluidized bed reactors Powder Technol. 110 143-57
7. van Beek L K H 1967 Dielectric behavior of heterogeneous systems Prog. Dielectrics 7 69-114
8. Jaworski A J and Bolton G T 2000 The design of an electrical capacitance tomography sensor for use with media of high dielectric permittivity Meas. Sci. Technol. 11 743-57
9. Huang S M, Xie C G, Thorn R, Snowden D and Beck M S 1992 Design of sensor electronics for electrical capacitance tomography IEE Proc. G 139 83-8
10. Isaksen O 1996 A review of reconstruction techniques for capacitance tomography Meas. Sci. Technol. 7 325-37
11. Lionheart B 2001 Reconstruction algorithms for permittivity and conductivity imaging Proc. 2nd World Congr. on Industrial Process Tomography. pp 4-11
12. Malcus S, Chaplin G and Pugsley T 2000 The hydrodynamics of the high-density bottom zone of a CFB riser analyzed by means of electrical capacitance tomography (ECT) Chem. Eng. Sci. 55 4129-38
13. Wang S J, Dyakowski T, Xie C G, Williams R A and Beck M S 1995 Real time capacitance imaging of bubble formation at the distributor of a fluidized bed Chem. Eng. J. 56 95-100
14. Process Tomography Ltd 1999 Calculation of volume ratio for ECT sensors PTL Application Note AN2
15. Louge M and Opie M 1990 Measurements of the effective dielectric permittivity of suspensions Powder Technol. 62 85-94
16. Ostrowski K, Luke S P, Bennett M A and Williams R A 1999 Real time visualization and analysis of dense powder conveying Powder Technol. 102 1-13
17. Halow J S, Fasching G E, Nicoletti P and Spenik J L 1993 Observations of a fluidized bed using capacitance imaging Chem. Eng. Sci. 48 643-59