Experimental study of phase sensitive detection technique in ECT system

Author

Xiaochen Ren ; Shi Liu

Author_Institution

Sch. Of Control & Comput. Eng., North China Electr. Power Univ., Beijing, China

Volume

1

fYear

2014

fDate

13-16 July 2014

Firstpage

121

Lastpage

125

Abstract

Electrical capacitance tomography (ECT) techniques have been developed to visualize industrial processes with dielectric materials. Phase sensitive demodulation is a key part of ECT system to improve speed and accuracy. Methods of demodulation are demonstrated in this paper, including analogue and digital methods. The problems about applying digital quadrature demodulation in ECT were simulated by SIMULINK. Validation shows that the digital phase sensitive demodulation is complete enough to meet the requirements of ECT system in accuracy and speed.

Keywords

capacitance measurement; demodulation; dielectric materials; electric impedance imaging; phase measurement; phase modulation; ECT system; SIMULINK simulation; analogue method; dielectric material; digital method; digital phase sensitive demodulation; digital quadrature demodulation; electrical capacitance tomography technique; industrial processing; phase sensitive detection technique; Abstracts; ECT; Phase sensitive demodulation; Quadrature demodulation; SIMULINK;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics (ICMLC), 2014 International Conference on

Conference_Location

Lanzhou

ISSN

2160-133X

Print_ISBN

978-1-4799-4216-9

Type

conf

DOI

10.1109/ICMLC.2014.7009103

Filename

7009103