Feature: T&M
its magnetosphere are brought close to an electrical conductor, eddy currents, or the moving electrons, begin to flow through the wire. The eddy current in the metal combines with the magnetic field of a coil. Via mutual inductance, it then generates its own magnetic field. A knowledgeable user can map
fluctuations in resistivity using eddy current equipment. In seeking out changes in the material to be measured, phase differences can also be used. The global market is expected to rise as new eddy current testing methods are invented. Average penetration is defined as the
point where the eddy flow rate is 37% of the surface value. The test frequency, polarisability and conductivity of test samples can all be used to calculate this depth. Changes in the conductivity of test
materials might have an impact on precision, test receptivity and solubility. It can also be influenced by the coil’s design, with alternating current driving the circuit and the material’s magnetic permeability. High standards for material, design
and durability are required by the global aircraft industry. Numerous fatal occurrences and grave injuries can result from smoothness, roughness and crevice breakdowns. Whereas in the oil and gas business eddy current testing is frequently used for safety inspections and to find flaws on surfaces and tubes. Since flaws here can cause catastrophic accidents and stop the entire production process, it is anticipated that demand for eddy current testing will increase.
The eddy current testing market We expect the size of the global market to reach $2.6bn by 2032, increasing steadily between 2023 and 2032, at a CAGR of 8.3%. Last year, the eddy current testing market was worth $1.1bn. In 2021, the North-American
eddy current testing market stood at $434.4m. This is expected to nearly double to $821.5m by 2032.
www.electronicsworld.co.uk June 2023 33
Since flaws in the oil & gas industry can cause catastrophic accidents and stop the entire production process, it is anticipated that demand for eddy current testing will increase
In the UK, the same market is likely
to broaden at a CAGR of 5% in the forecast period; in China it will reach $212.1m in 2032. In comparison, the remote field-
testing segment exhibited no growth from 2017 to 2021.
R&D To develop novel solutions, leading businesses in the worldwide eddy current testing market are concentrating on research and
development operations. Other businesses are forming alliances, mergers and acquisitions with regional small businesses, in the effort to increase their geographic presence and jointly develop novel solutions. For instance, in June 2021, ETher
NDE announced the launch of ETi- 300n, which was developed to improve end-to-end inspection workflow. Equipment was developed to inspect non-ferrous tubing and deliver accurate inspection results.
The aircraft and oil and gas industries are just two examples where eddy current testing will continue to grow to 2032
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