Eddy Current

Eddy current testing is one of the oldest nondestructive testing (NDT) methods. However, it wasn’t until the last few decades of the twentieth century that the eddy current method started to reach its true potential in the marketplace. One reason for this is that general purpose, user-friendly eddy current instruments are a relatively recent phenomenon. Whereas portable ultrasonic instruments offering considerable versatility have been available since the 1960s, comparable eddy current portables only became available in the 1980s. In addition, it is only recently that eddy current theory became widely understood by NDT professionals. The early 1980s, in particular, produced excellent explanatory material that made eddy current theory understandable to persons without advanced technical backgrounds. Modern microprocessor-based instruments, plus the availability of high-quality operator training, ensure the continued growth of this versatile, high-performance NDT method.

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Format

Title

Edition

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1

HB

PDF

ASNT - Fundamentals of Eddy Current Method

N/A

This book was prepared for The American Society for Nondestructive Testing. Inc. (ASNT) for instruction In the sublecl of eddy current testing (El). Eddy current testing is one of the most widely applicable of the nondestructive testing methods. It depends on measuring the changes In the Impedance of a coil due to changes in the flow of eddy cuments Induced In a conductor.

ASNT

Upon Requist

2

HB

PDF

ASNT - Level III Study Guide - Eddy Current method - Continuing Education in Nondestructive testing

N/A

Early experimenters in the field of magnetism and electromagnetism established the basis for the principles of electromagnetic nondestructive examination used today.

ASNT

Upon Requist

3

HB

PDF

ASNT - NDT Handbook - Volume 5 - Electromagnetic Testing

2004

Electromagnetic nondestructive test methods have come a long way since the work reported by S.M. Saxby concerning magnetic techniques for inspecting gun barrels in 1868 and the early eddy current experiments conducted by D.E. Hughes in 1879. The level of sophistication of these methods has grown considerably with time as has the diversity of applications. Progress in the fields of electronics, sensor technology and computer engineering has facilitated the development of new and interesting approaches for improving the sensitivity and resolution of such techniques

ASNT

Upon Requist

4

S

PDF

ASTM - E 426 - Standard practice for Electromagnetic (Eddy-Current) Examination of Seamless and Welded Tubular Products, Austentic Stainless Steel and Similar Alloys

2003

This practice covers procedures that may be followed for eddy-current examination of seamless and welded tubular products made of stainless steel and cimilar alloys such as nickel alloys. Austenitic chromium-nickel stainless steels, which are generally considered to be nonmagnetic, are specifi-cally covered as distinguished from the martensitic and fenitic straight chromium stainless steels which are magnetic.

ASNT

Upon Requist

5

S

PDF

ASTM - E 428 Standard practice for Fabrication and Control of Steel Reference Blocks Used in Ultrasonic Examination

2000

 This practice covers a procedure for fabrication and control of metal alloy reference blocks used in ultrasonic examination that have a flat-surface sound entry, are cylindrical in shape, and contain flat-bottom holes (FBH) which may be used for checking the performance of ultrasonic examination instrumentation and search units and for standardization and control of ultrasonic examination of metal alloy products. The reference blocks described are suitable for use with either the direct-contact method or immersion pulse-echo ultrasonic methods.

ASNT

Upon Requist

6

S

PDF

ASTM - E 571 - Standard Practice for Electromagnetic (eddy Current) Examination of Nickel and nickel Alloy Tubular Products

2003

This practice' covers the procedures for eddy-current examination of nickel and nickel alloy tubes. These procedures are applicable for tubes with outside diameters up to 2 in. (50.8 mm), incl, and wall thicknesses from 0.035 to 0.120 in. (0.889 to 3.04 mm), incl. These procedures may be used for tubes beyond the size range recommended, by contractual agreement between the purchaser and the producer.

ASNT

Upon Requist

7

S

PDF

ASTM - E 690 Standard Practice for In Situ Electromagnetic(eddy-Current) Examination of Nonmagnetic Heat Exchanger Tubes

2004

This practice describes procedures to be followed during eddy-current examination (using an internal, probe-type, coil assembly) of nonmagnetic tubing that has been installed in a heat exchanger.

ASNT

Upon Requist

8

S

PDF

ASTM - E 703 - Standard Practice for Electromagnetic(Eddy-Current) Sorting of Nonferrous Metals

2004

This practice describes a procedure for sorting nonfer-rous metals using the electromagnetic (eddy-current) method. The procedure is intended for use with instruments using absolute or comparator-type coils for distinguishing variations in mass, shape, conductivity, and other variables such as alloy, heat treatment, or hardness that may be closely correlated with the electrical properties of the material. Selection of samples to evaluate sorting feasibility and to establish standards is also described.

ASNT

Upon Requist

9

GL

PDF

AWS - B1.10M - Guide for the Nondestructive Examination of Welds

2016

This gitirde acquaints the user with the nondestructive examination methods commonly used to examine weldments. The stan9ard also addresses which method best detects various types of discontinuities. The methods included are visual, liquid pfnetrant, magnetic particle, radiographic, ultrasonic, electromagnetic (eddy current), and leak testing.

AWS

Upon Requist

10

S

PDF

BS EN ISO 15548-1 - Non-destructive testing - Equipment for the eddy current examination - Part 1 - Instrument characteristics and verification

2013

This part of ISO 15548 identifies the functional characteristics of a general-purpose eddy current instrument and provides methods for their measurement and verification.

ISO

Upon Requist

11

S

PDF

BS EN ISO 15548-2 - Non-destructive testing - Equipment for eddy current testing - Part 2 - Probe characteristics and verification

2013

This part of ISO 15548 identifies the functional characteristics of a probe and its interconnecting elements and provides methods for their measurement and verification.

ISO

Upon Requist

12

GL

PDF

Eddy Current - Engineering, Materials and Components Sector

2002

Natural Resources Canada (NRCan), through the Materials Technology Laboratory (MTL) of the Minerals and Metals Sector (MMS), is the NDT Certifying Agency for the Canadian Nondestructive Testing Personnel Certification Program. NRCan certifies individuals according to CAN/CGSB 48.9712 standard.

NDT

Upon Requist

13

HB

PDF

Handbook of Nondestructive Evaluation

2003

One may wonder why the title of this Handbook contains the word “evaluation” instead of the generic term “testing” that is usually used in connection with “Nondestructive.” The American Heritage Dictionary properly defines “nondestructive” as “Of, relating to, or being a process that does not result in damage to the material under investigation or testing.” The most appropriate definitions of the word “test(ing)” from the same source, are “to determine the presence or properties of a substance” and, “to exhibit a given characteristic when subjected to a test.” There are also several other definitions that do not really apply.

Charles J.Hellier

 

Upon Requist

14

GL

PDF

IAEA - Eddy Current Testing at Level 2 - Manual for the Syllabi Contained in IAEA-TECDOC-628.Rev. 2 - Training Guidelines for Non destructive Testing Techniques

2011

The International Atomic Energy Agency has been active in the promotion of non-destructive testing (NDT) technology in the world for many decades. The prime reason for this interest has been the need for stringent standards for quality control for safe operation of nuclear as well as other industrial installations. It has successfully executed a number of programmes including technical co-operation (TC) projects (national and regional) and the coordinated research projects (CRP) of which NDT was an important part. Through these programmes a large number of persons in the Member States have been trained, leading to establishment of national certifying bodies (NCB) responsible for training and certification of NDT personnel. Consequently, a state of self-sufficiency in this area of technology has been achieved in many of them.

IAEA

 

Upon Requist

15

HB

PDF

Introduction to nondestructive testing - A training guide

2005

This book has been written to provide a single volume with basic background information needed to help students and nondestructive testing (NDT) personnel qualify for Levels I, II, and III certification in the NDT methods of their choice, in accordance with the American Society for Nondestructive Testing (ASNT) Recommended Practice No. SNT-TC-1A (2001 edition). It is also recommended that students and NDT personnel become thoroughly familiar with the most current recommended practice as well

John Wiley & Sons, Inc., Hoboken, New Jersey

 

Upon Requist

16

S

PDF

ISO 10893-2 - Non-destructive of steel tubes - Part 2 - Automated eddy current testing of seamless and welded(except submerged arc-welded) steel tubes for the detection of imperfections

2011

This part of ISO 10893 specifies requirements for automated eddy current testing of seamless and welded tubes with the exception of submerged arc-welded (SAW) tubes, for the detection of imperfections according to the different acceptance levels as shown in Tables 1 and 2. It is applicable to the inspection of tubes with an outside diameter greater than or equal to 4 mm.

ISO

Upon Requist

17

S

PDF

ISO 17643 - Nom-destructive testing of welds - Eddy Current testing of welds by complex-plane analysis

2015

This International Standard defines eddy current testing techniques for detection of surface breaking and near surface planar discontinuities, mainly in ferritic materials (weld material, heat-affected zones, base material).

ISO

Upon Requist

18

Paper

PDF

Magnetic Eddy Current In-Line Inspection Tool Development for CRA Pipelines

2015

Conventional In-Line Inspection (ILI) technology is based on ultrasonic (UT) or magnetic flux leakage (MFL) sensors, both of which are unable to inspect pipelines mechanically lined with Corrosion Resistant Alloy (CRA). UT sensors cannot transmit the sound wave through the interface between the CRA liner and carbon steel base pipe. MFL cannot inspect the carbon steel pipe because of the inability to permeate the magnetic field through the CRA liner.

Stefanie Asher - Andreas Boenisch -  Konrad Reber

 

Upon Requist

19

Paper

PDF

NBIC - Part 2 - Inspection

2019

The NBIC recognizes three important areas of post-construction activities where information, understanding,and following specific requirements will promote public and personal safety.

NBIC

 

Upon Requist