Parametric Image Reconstruction for ECT-like Sensor with Applications in Two-Phase Flow

Hector Lise de Moura, Daniel Rodrigues Pipa, Aluisio do Nascimento Wrasse, Marco Jose Da Silva

DOI: 10.14209/sbrt.2015.53

Evento: XXXIII Simpósio Brasileiro de Telecomunicações (SBrT2015)

Keywords: ECT image reconstruction parametric methods alternate minimization two-phase flow stratified flow

Abstract

Electrical Capacitance Tomography (ECT) is a technique developed to estimate phase distribution in pipelines. Most ECT instruments, however, suffer from high peripheral / low central sensitivities. This ill conditioning causes the recon- struction to be unstable, producing low quality images. This paper presents a new method for an ECT inspired sensor that was developed in a previous work of our group. Although the sensor was designed with few electrodes for simplicity, this worsened general sensitivity, restricting the use of classical reconstruction methods. This paper addresses this issue by applying a parametric approach, improving overall quality of the reconstructed image.

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