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Open AccessArticle

FPGA Implementation of ECT Digital System for Imaging Conductive Materials

by 1,2
1
Department of Computer Science in Jamoum, Umm Al-Qura University, Makkah 25371, Saudi Arabia
2
Computers and Systems Engineering Department, Mansoura University, Mansoura 35516, Egypt
Algorithms 2019, 12(2), 28; https://doi.org/10.3390/a12020028
Received: 3 December 2018 / Revised: 14 January 2019 / Accepted: 16 January 2019 / Published: 22 January 2019
This paper presents the hardware implementation of a stand-alone Electrical Capacitance Tomography (ECT) system employing a Field Programmable Gate Array (FPGA). The image reconstruction algorithms of the ECT system demand intensive computation and fast processing of large number of measurements. The inner product of large vectors is the core of the majority of these algorithms. Therefore, a reconfigurable segmented parallel inner product architecture for the parallel matrix multiplication is proposed. In addition, hardware-software codesign targeting FPGA System-On-Chip (SoC) is applied to achieve high performance. The development of the hardware-software codesign is carried out via commercial tools to adjust the software algorithms and parameters of the system. The ECT system is used in this work to monitor the characteristic of the molten metal in the Lost Foam Casting (LFC) process. The hardware system consists of capacitive sensors, wireless nodes and FPGA module. The experimental results reveal high stability and accuracy when building the ECT system based on the FPGA architecture. The proposed system achieves high performance in terms of speed and small design density. View Full-Text
Keywords: capacitance measurements; electrical tomography; image reconstruction algorithm; LFC; FPGA capacitance measurements; electrical tomography; image reconstruction algorithm; LFC; FPGA
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Deabes, W. FPGA Implementation of ECT Digital System for Imaging Conductive Materials. Algorithms 2019, 12, 28.

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