Eddy Current Test and Inspection Services

The Merrick Group’s Eddy Current Tube Inspection

Eddy current testing is a method of non-destructive testing (NDT) that is based on the principles of electromagnetism. When an eddy current probe is energized at a given alternating frequency while in close proximity to a conductive test specimen, eddy currents are induced in the test specimen by means of electromagnetic induction.

The Merrick Group Advantage is a set of principles we instill in our global team. The quality and reputation we offer make us an industry leader with decades of experience. When you are choosing your next eddy current testing company, remember that Merrick Group’s core values include reliability, efficiency, dependable technology, and safety.

When you choose The Merrick Group for your next eddy current tube inspection, you are choosing to work with a family-owned business that focuses on employee training and growth.

What’s Covered in Our Eddy Current Tube Inspection?

Eddy Current Testing Company

Our Eddy Current Tube Inspection encompasses a comprehensive array of services to ensure thorough evaluation and reliable results. With meticulous attention to detail, Your inspection includes:

  • Level III Project Managers
  • Remote Field Testing
  • Array and MRPC techniques
  • Video probe inspections
  • Detailed Final Reports that discuss the component conditions, damage mechanisms, and recommendations.

It doesn’t matter where you are located, The Merrick Group can assist with your eddy current tube inspection today.

Why Choose The Merrick Group for Your Eddy Current Testing Needs?

The Merrick Group offers Non-Destructive Examination services (NDE) as part of our catalog of capabilities that use the most dependable technology. When choosing an eddy testing company, The Merrick Group is proud of our project execution, quality, and technical expertise.


The Merrick Group has implemented a Quality Assurance Program in accordance with ASME NQA-1-2008, 2009 Addendum, and 10CFR50, Appendix B. Our QA Program has been audited and approved by NUPIC.The Merrick Group’s non-destructive testing personnel are certified to the requirements of ASNT SNT-TC-1A and CP-189 through our Training, Qualification, and Certification Program which sets us apart from our competition.


The Merrick Group has decades of experience performing industrial testing of all kinds. We are committed to providing the highest quality service to our clients at the best possible value. Our ability to handle all maintenance, inspection, and Eddy Current Testing activities on a component allows for the most efficient use of resources, schedule time, and budget.


Read our blog to more about what is an eddy current test. If you are ready to choose the Merrick Group for eddy testing services then contact us today! Our team will be happy to help you schedule our worldwide, industrial services.

Thank you agai, Team Merrick. The team was fantastic. Ashley, Brant and Russ’s leadership stood out to me as well. We are very pleased with the work that was performed.

– EDWIN PITILLO, McGuire SR. Nuc. Support

FAQs about Eddy Current Testing Services

Consistent performance of eddy current inspections permits accurate forecasting of maintenance and repair or replacement activities. Maintaining high levels of heat exchanger and condenser performance and system reliability requires regularly scheduled maintenance and inspections.

Ideally, an eddy current test will occur approximately every 3 to 5 years, possibly more frequently if there is active damage occurring that should be monitored. The actual amount of time between testing periods will rely on a number of factors, such as the amount of damage that was identified in the heat exchangers or condensers.

Every situation is unique, The Merrick Group uses the latest technology coupled with extensive experience to determine your components’ condition. Our knowledgeable staff will provide guidance for operational and maintenance activities to improve system performance and reliability.

Contact The Merrick Group today to schedule your eddy current test.

An eddy current test is extremely sensitive to defects in the tube wall and is the most efficient method for detecting and depth-sizing tubing flaws.

Accurate depth sizing requires the use of calibration standards that mimic the damage mechanism. Eddy current testing is best used as a method to assess the condition of a component, particularly the tubing in a component, but other information on component condition can be identified. As part of the condition assessment program, degradation detected by current testing can be re-inspected over time to determine if degradation is ongoing and to trend degradation through the life cycle of the component.

Eddy current inspections can detect various defects, including cracks, corrosion, material thickness variations, and changes in material composition. It is particularly effective for detecting surface cracks and near-surface defects in conductive materials.

ECT can provide high levels of accuracy, particularly for detecting surface and near-surface defects. However, the accuracy of the results depends on various factors, including equipment calibration, operator proficiency, and the nature of the material being tested.