Cursillo de corrientes de Foucault multielementos
Cursillo de corrientes de Foucault multielementos

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Eddy current array (ECA) is a nondestructive testing technology that provides the ability to electronically drive multiple eddy current coils, which are placed side by side in the same probe assembly. Each individual eddy current coil in the probe produces a signal relative to the phase and amplitude of the structure below it. This data is referenced to an encoded position and time and represented graphically as a C-scan image. Most conventional eddy current flaw detection techniques can be reproduced with ECA inspections; however, the remarkable advantages of ECA technology allow improved inspection capabilities and significant time savings.

ECA technology includes the following advantages:

  • A larger area can be scanned in a single-probe pass, while maintaining a high resolution.
  • Less need for complex robotics to move the probe; a simple manual scan is often enough.
  • C-scan imaging improves flaw detection and sizing.
  • Complex shapes can be inspected using probes customized to the profile of the part being inspected.

1.0 Introduction

1.1 General Introduction to Eddy Current (EC) Testing
1.2 History of Eddy Current Testing
1.3 Equipment

2.0 What is Eddy Current Array (ECA) Testing?

2.1 Basic Concepts
2.2 Depth of Penetration
2.3 Multiplexing
2.4 Normalization
2.5 Benefits of Eddy Current Testing

3.0 Probes

3.1 EC Probes
3.2 Eddy Current Array Probes
3.3 Probes Design
3.4 Probes Parameters
3.5 Custom Probes
3.6 Calibration Standards

4.0 Typical Applications

4.1 Rivet Inspection
4.2 Corrosion Detection

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