An open source implementation of a data acquisition system for a current pulse ERT system using an industry standard interface

K.H. Hauslaib1, E.W. Randall2

1Electrical Engineering, University of Cape Town, Rondebosch 7701, South Africa

2Chemical Engineering, University of Cape Town, Rondebosch 7701, South Africa

Abstract

The design and applications of the Current Pulse Electrical Resistance Tomography (ERT) system developed at the University of Cape Town (UCT) has been described in several journal papers and at previous world congresses.Details of the electronic circuits were published at WCIPT6. This paper deals with the replacement of the USB DAQ and two micro-controllers with an industry standard IO system available from National Instruments and enables the transmission of data at 1000 fps over an TCP/IP network. The LabVIEW code will be placed in the public domain to coincide with WCIPT7. This will provide a complete open source design for an ERT system.

Keywords: Electrical Resistance Tomography, current pulse, National Instruments, RIO, LabVIEW