Abstract
This paper presents the implementation of a Dynamic Link Library (DLL) and Signal Conditioning System for on-line qualitative reconstruction and analysis of Electrical Impedance Tomography (EIT) images. Three different finite element circular meshes were developed for use with the DLL: 104, 464 and 1016 triangular elements. The library allows the user to choose between three different post-reconstruction options for data visualization: raw data, bilinear interpolation and radial basis function (RBF) interpolation. The DLL can thus be imported into a Virtual Instrumentation software, such as National Instruments LabWindows© and Agilent Technologies HPVEE© to ease the implementation of virtual instrumentation for EIT measurements. A case study is presented: in-phantom object tracking in laboratory test trials. The results suggest that the EIT DLL can be used as part of a virtual instrumentation program, reducing development time for on-line real-time analysis in multiple applications.
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