Corrosion control for buried pipelines has been proceeded by maintaining the pipe-to-soil potential of the pipeline using a cathodic protection system. Measurement of pipe-to-soil potential is therefore a very important requirement for the corrosion control of the pipeline. However, conventional methods of measuring this potential require a lot of labor and cost. As a result, the frequency of mesurement is prolonged once or twice a year, and the desirable level of maintenance for corrosion control is not achieved.

To solve these problems, the authors have successfully developed a pipe-to-soil potential automatic monitoring system. This system automatically records data on the pipe-to-soil potential measured at each test point without the need for any labor and at any time it is required.

Details of this highly economical automatic monitoring system is introduced in this paper.

Subject
Voltage, Cathodic protection, Electrochemical noise, Pipe to soil potential, Impedance, Pipelines, Rods, Potential measurements, Transmission lines, Equipment, Attenuation, Below ground pipelines, Electrode potential
© 1983 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1983
Association for Materials Protection and Performance (AMPP)
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