CONSITENCY PROFILE MEASUREMENT IN PULP BASED ON ELECTRICAL IMPEDANCE TOMOGRAPHY

Shaomin Zhou, Jouko Halttunen

Abstract

This paper describes a low cost system to measure the consistency profile of pulp based on electrical impedance tomography (EIT). A 16-electrode sensor is applied to acquire the cross-sectional data. Data acquisition is controlled by a single-chip computer, which receives commands from host computer, initializes hardware, acquires data and sends them to host computer via a serial port. All the measurement parameters such as the amplitude and frequency of the injected current can be set by software in host computer. The consistency profile image is reconstructed by modified Newton-Raphson algorithm. Comparing to conventional method, it is non-invasive and low cost.

Keywords

tomography, EIT, consistency profile

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PWC-2003-TC7-025.pdf

DOI

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IMEKO TC

TC7 - Measurement Science

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