Dynamic performance improvement of ERT system [electrical resistance tomography]

Author

Wenhui, Wang ; Feng, Dong ; Yanbin, Xu ; Junwen, Liu

Author_Institution

Dept. of Autom., Tianjin Univ., China

Volume

2

fYear

2004

fDate

18-20 May 2004

Firstpage

1433

Abstract

Electrical resistance tomography (ERT) is the embranchment of process tomography (PT). In this paper, the bottleneck of system real-time performance is analysed. The dynamic performance of the system can be improved by increasing the signal frequency, placing the band pass filter (BPF) parallel and replacing the low pass filter (LPF) used to obtain the amplitude information by a digital measurement method. Based on these analyses, an improved ERT system is designed, and a method of peak value measurement used to obtain the amplitude of the measurement signal is put forward.

Keywords

band-pass filters; electric admittance measurement; electric impedance imaging; electric resistance measurement; peak detectors; tomography; ERT system dynamic performance improvement; ERT system real-time performance; band pass filter; conductance distribution; digital measurement method; electrical resistance tomography; peak value measurement; process tomography; Band pass filters; Design methodology; Electric resistance; Frequency measurement; Low pass filters; Performance analysis; Real time systems; Signal analysis; Signal design; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE

ISSN

1091-5281

Print_ISBN

0-7803-8248-X

Type

conf

DOI

10.1109/IMTC.2004.1351336

Filename

1351336