NDLI: A Specific Data Acquisition Scheme for Electrical Tomography

Content Provider	IEEE Xplore Digital Library
Author	Ziqiang Cui Huaxiang Wang Lei Tang Lifeng Zhang Xiaoyan Chen Yong Yan
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin (Ziqiang Cui; Huaxiang Wang; Lei Tang; Lifeng Zhang; Xiaoyan Chen)
Abstract	Electrical tomography techniques have been developed for monitoring the internal behavior of industrial processes. The electrical tomography offers some advantages over other tomography modalities, such as low cost, no radiation and being non-intrusive. In the past, individual data acquisition systems have been used for tomographic measurement, e.g., for ECT, ERT and EMT, most of which are in analog hardware. Generally, it is difficult to transfer these systems to other modalities. This paper presents a FPGA based data acquisition scheme, which can be used to facilitate the hardware design of electrical tomography. Improvements in system performance are achieved by implementing most functions in digital rather than analog hardware. Currently, individual ECT and ERT data acquisition systems have been used for achieving dual-modality tomography, which will result in poor hardware integration and data combination. With this scheme, multi-modality measurement techniques could be integrated into a system based on a single FPGA chip, providing effective integration. Preliminary results show that the signal to noise ratio is greater than 74 dB.
Starting Page	726
Ending Page	729
File Size	1911812
Page Count	4
File Format	PDF
ISBN	9781424415403
ISSN	10915281
DOI	10.1109/IMTC.2008.4547132
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-12
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Data acquisition Hardware Electrical capacitance tomography Field programmable gate arrays Electric variables measurement Signal generators Automation Costs Demodulation Conductivity measurement field programmable gate arrays electrical tomography multimodal measurement data acquisition
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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