IN-SITU EDDY CURRENT INSPECTION OF HEAT EXCHANGER TUBES

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WCNDT '96 - New Delhi
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ET - ECT - Electrical and Electromagnetic Testing Techniques

IN-SITU EDDY CURRENT INSPECTION OF HEAT EXCHANGER TUBES

Ashok J. Trivedi and Rajul R. Parikh
Foerster Electronic & Engineering Company (I) Pvt. Ltd., Mumbai, India

Keywords: Eddy Current, In-service inspection, Calibration, Multi frequency systems, NDT

ABSTRACT

The paper describes:

The type of coil and instrument used for the inspection.
The reference calibration standard as per ASME.
Calibration and test procedure.
Evaluation of flaws under support plates in heat exchanger tubes. * Use of multi frequency eddy current testing equipments.
Advantages of multi frequency systems.

ET - ECT - Electrical and Electromagnetic Testing Techniques

Publication Source: Trends in NDE Science & Technology; Proceedings of the 14th World Conference on Non-Destructive Testing, New Delhi, 8-13 December 1996.Vol. 3, pages 1729 - 1736
Publisher: Ashgate Publishing Company