Eddy Current Testing Service

Eddy Current Array (ECA) is a type of nondestructive eddy current testing that involves operating eddy current coils in a probe assembly electronically. Each coil in the probe generates a signal whose strength is determined by the phase and amplitude of the item it is placed over. The data from this signal can be captured and measured. This information can then be linked to an encoded position and time, and visualised as a C-scan image.Eddy current inspections are a type of non-destructive testing that uses the electromagnetic induction concept. When alternating current is delivered to a conductor, such as an eddy current probe, a magnetic field forms around it that varies in strength as the current alternates. A current will be induced in another conductor, in this case the material being tested, if it is brought close to the initial field. If this material has any faults, the eddy current that emanates from it will be warped. ECA is capable of reproducing the flaw detection techniques of most other eddy current methods. This method though had several distinct advantages such as: Being able to scan a larger area at one time while maintaining a high resolution, A lesser need for complex robotics to actually move the probe, Improved flaw detection due to the C-scan imaging, and Complex shapes can be inspected using this method because the probes can be customized to the profile of the part being inspected. This method is widely used for a number of industry applications. It can be used both measuring the thickness of steels and detecting corrosion. ECA can be used on materials as diverse as vessels, columns, storage tanks & spheres, piping systems, and even structural applications.

Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.

Eddy current testing continuous wave eddy current testing is one of several non-destructive testing methods that use the electromagnetism principle. Conventional eddy current testing utilises electromagnetic induction to detect discontinuities in conductive materials. A specially designed coil energised with alternating current is placed in proximity to the test surface generating changing magnetic-field which interacts with the test-part producing eddy current in the vicinity. Variations in the changing phases and magnitude of these eddy currents is then monitored through the use of receiver-coil(s), or by measuring changes to the alternate current flowing in the primary excitation-coil. The electrical conductivity variations or magnetic permeability of the test-part, or the presence of any discontinuities, will cause a change in eddy current and a corresponding change in phases and amplitude of the measured current. the changes are shown on a screen for easy interpretation. Another method of using the eddy current principle is pulsed eddy current testing. methods are being developed to investigate surfaces through protective coatings, weather sheetings, corrosion products and even the insulation materials. Inspection of surfaces at high temperature are possible with the eddy current technique as it is a non-contact method.

Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials. The two major applications of eddy current testing are surface inspection and tubing inspections. Surface inspection is used extensively in the aerospace industry, but also in the petrochemical industry. The technique is very sensitive and can detect tight cracks. Surface inspection can be performed both on ferromagnetic and non-ferromagnetic materials

Trinity NDT is your trusted provider of Eddy Current Testing (ECT) services, specializing in the detection of cracks and material defects in a wide range of industries. We are dedicated to ensuring the integrity and safety of critical components and materials through our advanced ECT solutions. Our Eddy Current Testing Services Include: Crack Detection: We utilize high-frequency alternating current to inspect conductive materials, identifying surface and subsurface cracks, corrosion, and other imperfections with precision. Material Sorting and Conductivity Assessment: Trinity NDT can assist you in evaluating material properties, sorting materials, and ensuring quality control in manufacturing processes. Automated Testing: Our state-of-the-art equipment and automated testing solutions provide efficient and accurate inspections, reducing downtime and costs. Customized Services: We tailor our Eddy Current Testing services to suit the specific requirements of your project, offering flexibility and personalized solutions. Industry Expertise: With experience in industries like aerospace, automotive, power generation, and more, Trinity NDT is well-equipped to address diverse testing needs. We adhere to stringent quality and safety standards to guarantee the utmost accuracy and reliability in our Eddy Current Testing services. At Trinity NDT, we take pride in contributing to the safety and performance of your projects. Contact us today to learn how Trinity NDT's Eddy Current Testing services can enhance the quality and safety of your materials and components.  

Eddy current testing is performed on non-ferromagnetic materials for surface and sub surface discontinuities, and on ferromagnetic materials for surface breaking discontinuities in accordance with ASME V, BS EN 1711, AS4544 and other Standards. Eddy current testing electrical currents are generated a conductive material by an induced magnetic field. Distortions in the flow of the electric current (eddy currents) caused by imperfections or changes in a materials conductive properties will cause changes in the induced magnetic field. These changes, when detected, indicate the presence of the imperfection or change in the test material.

This ndt method is based on the principles of electromagnetic induction. The flow of electricity, under certain circumstances, can cause magnetism. Magnetism under certain circumstances causes the flow of electricity. When an alternating current (ac) is passed through a coil, a changing magnetic field is generated. This method can be applied to tubing, sheets, cylinders and coatings and provides a means for measuring conductivity, detecting discontinuities, and determining the thickness of coating or plating on articles. Since a continuous indication is a part of the basic testing system, automatic production testing is particularly feasible.

Eddy current testing a modern Nondestructive testing – NDT method that has become one of the primetool for quality control of products, materials and structures at various stages of manufacturing and in-service inspections. Eddy current inspection can be used to find finest surface and subsurface flaws in any conductive material. Spectrums of quality control engineering applications are existing applying Eddy current principles. PresentEddy current NDT method has applications in Aerospace Component Inspections, Heat exchanger tube inspections and other critical engineering applications.

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