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Surface Crack Detection Using Sliding Probes
Many commercial aircraft applications involve the use of multiple fasteners to connect the multi-layer skins.…
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Signal Filtering
Signal filtering is often used in eddy current testing to eliminate unwanted frequencies from the…
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Reference Standards
In eddy current testing, the use of reference standards in setting up the equipment is…
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Impedance Matching
Eddy current testing requires us to determine the components of the impedance of the detecting…
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Coil (Probe) Design
The most important feature in eddy current testing is the way in which the eddy…
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Probes – Shielding & Loading
One of the challenges of performing an eddy current inspection is getting sufficient eddy current…
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Probes – Configurations
Eddy current probes are classified by the configuration and mode of operation of the test…
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Absolute Probes
Absolute probes generally have a single test coil that is used to generate the eddy…
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Display – Analog Meter
Analog instruments are the simplest of the instruments available for eddy current inspections. They are…
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Display – Complex Impedance Plane
Electrical Impedance (Z), is the total opposition that a circuit presents to an alternating current. Impedance, measured…