Three-dimensional electrical capacitance tomography measurement system based on an impedance analyzer

Author

Yinggang Zhou ; Delong Liu ; Hua Yan

Author_Institution

Sch. of Inf. Sci. & Eng., Shenyang Technol. Univ., Shenyang, China

fYear

2013

fDate

22-23 Oct. 2013

Firstpage

415

Lastpage

418

Abstract

This thesis designs a three-dimensional (3D) electrical capacitance tomography (ECT) measurement system based on an impedance analyzer. The measurement system is consisting of a 3D ECT sensor with 12 electrodes, a WK65120B impedance analyzer, a specially designed multi-channel switched system and a PC. Using the QT software to control multi-channel switch system and impedance analyzer, we can achieve the automatic capacitance measurement of 12 plates of 3D capacitance sensor without affecting the measurement accuracy, and save the measurement data on the computer. Compared with direct impedance analyzer, the measurement speed and stability are improved. Experiments show that the system can automatically measure all the 66 capacitance values generated by the 3D ECT sensor with low drift, high resolution and high accuracy.

Keywords

capacitance measurement; capacitive sensors; computerised instrumentation; electric impedance imaging; electrodes; pulse height analysers; 3D ECT measurement system; 3D ECT sensor; 3D capacitance sensor; PC; QT software; WK65120B impedance analyzer; automatic capacitance measurement; electrode; multichannel switched system; stability; three-dimensional electrical capacitance tomography measurement system; Capacitance; Capacitance measurement; Electrodes; Impedance; Impedance measurement; Semiconductor device measurement; Three-dimensional displays; 3D capacitance sensor; Impedance analyzer; Multi-channel switched system; QT;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques (IST), 2013 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4673-5790-6

Type

conf

DOI

10.1109/IST.2013.6729733

Filename

6729733