3D Presentation of Images with Capacitance Tomography

Haigang Wang1, Shi Liu1, Fan Jiang1 and Wuqiang Yang2

1 Institute of Engineering Thermophysics, Chinese Academy of Sciences, PO Box 2708, Beijing 100080, China, wanghaig@hotmail.com

2 Dept. of Electrical Engineering and Electronics, UMIST, PO Box 88, Manchester M60 1QD, UK, w.yang@umist.ac.uk

ABSTRACT

Electrical capacitance tomography (ECT) technology has been developed to provide 2D images of a cross section of industrial processes. For some applications, e.g. to investigate gas/solids distribution in circulating fluidised beds (CFBs), 3D presentation of images provide valuable information. This paper presents a data processing method, using Visual C++ Open-GL, to present 3D images, based on 2D images obtained from an ECT system. Experimental results are given.

Keywords Capacitance tomography, 3D image, Open-GL, Fluidised bed