Eddy Current

What is Eddy Current Testing?

Eddy Current is a versatile non-destructive testing (NDT) method used to detect surface and near-surface defects in conductive materials. It is widely applied in industries where quality and safety are paramount, providing reliable results without causing any damage to the components being tested.

How does Eddy Current work?

The process involves the following key steps:

Preparation: The surface of the test object is cleaned to remove any debris or contaminants that could interfere with the test results.
Inducing Eddy Currents: An alternating electrical current is passed through a coil, creating a magnetic field. When the coil is brought close to a conductive material, it induces eddy currents within the material.
Detection of Flaws: If there are any discontinuities (e.g., cracks, corrosion) in the material, they disrupt the flow of the eddy currents, causing detectable changes in the magnetic field.
Inspection and Evaluation: The inspector analyses these changes using specialized equipment, allowing them to locate and evaluate any flaws or inconsistencies in the material.

Advantages of using Eddy Current

Non-Invasive: Eddy Current is a non-contact method, making it ideal for inspecting delicate or sensitive materials.
Efficient: Eddy Current offers quick results, enabling prompt decision-making in both manufacturing and maintenance settings.
Detailed Detection: Eddy Current is sensitive to small surface and near-surface flaws, including cracks, corrosion, and wear.
Versatile Material Testing: Eddy Current can be used on a wide range of conductive materials, including metals and alloys, without the need for extensive surface preparation.

Applications of Eddy Current

Eddy Current Testing is commonly used across several industries due to its adaptability and precision:

Aerospace: For inspecting fuselage components, engine parts, and landing gear.
Oil & Gas: Used for detecting corrosion in pipelines, heat exchangers, and support structures.
Petrochemical: Ideal for testing pressure vessels, piping systems, and reactors.
Power Generation: Used to examine turbine components, condenser tubes, and other critical equipment.
Fabrication: For inspecting welds, structural components, and high-stress metal assemblies.

Comprehensive Reporting

With every Eddy Current job, we provide thorough written reports that detail our findings, including an overview of the inspection process, the test results, and any detected flaws. These reports ensure that you have clear insights into the component’s condition and any suggested actions.

Our Skilled Team

At Testa, our highly trained and experienced team brings a wealth of expertise in Eddy Current Testing. All our technicians are certified to PCN standards (Personnel Certification in Non-Destructive Testing) in accordance with BS EN ISO 9712, ensuring that each inspection is conducted with precision, safety, and professionalism.