Aero-engine discs are very critical parts since they are exposed to high stress and temperature during flights. Engine disc components such as bearing rings, fan and compressor discs are subjected to extensive inspections during the different manufacturing stages, including dimensional controls up to the detection of the tiniest surface flaws on rolling surfaces (bearing raceways).

First, a little history. The alternating current field measurement (ACFM) nondestructive testing technique was developed in the ‘80s to detect and estimate penetration depth of fatigue cracks in underwater welded tubular intersections of offshore oil platforms. 

In 1968, Zetec won a government contract to inspect steam generator tubing and developed an analog, single-frequency eddy current tester, a state-of-the-art instrument at the time. Over the next 20 years, Zetec’s eddy current testing equipment, training, and methodology became industry standards for nuclear power NDT, then in balance-of-plant and process industry applications.

Aerospace market, increasing number of oil and gas refineries to fuel growth of eddy current NDT equipment market through 2026.

Eddy current displacement sensors combine several advantages. They provide high precision and resolution on a wear-free, noncontact basis. They are resistant to external influences such as dirt, pressure and fluctuating temperatures and therefore are ideally suited to harsh industrial environments.

Digital transformation is a competitive technology and business strategy that leverages data gathering to drive business efficiencies, new revenue growth, and new business models.

Pulsed eddy currents (PEC) are a versatile nondestructive testing (NDT) technique uniquely suited to detect corrosion under insulation (CUI). 

When I was 19 years old, my first paying job in the nondestructive testing (NDT) industry was inspecting a weld repair on a water intake pipe at the Seabrook Station nuclear power plant in New Hampshire.

We test our products to ensure that they ship without defects. This helps reduce our scrap and warranty costs, and above all, create and deliver products that meet our customers’ needs.

Eddy current testing uses the principle of electromagnetic induction to detect flaws in conductive materials.