Posted inNon Destructive Testing
Multiple Frequency Techniques
Multiple frequency eddy current techniques simply involve collecting data at several different frequencies and then…
Posted inNon Destructive Testing
Advanced Techniques – Scanning
Eddy current data can be collected using automated scanning systems to improve the quality of…
Posted inNon Destructive Testing
Thickness Measurements of Non Conducting Coatings on Conductive Materials
The thickness of nonmetallic coatings on metal substrates can be determined simply from the effect of liftoff on impedance.…
Posted inNon Destructive Testing
Thickness Measurements of Thin Material
Eddy current techniques can be used to perform a number of dimensional measurements. The ability…
Posted inBasics
Verification of Heat Treatment
With some materials, such as solution heat treatable aluminum alloys, conductivity measurements are often made verifying that…
Posted inNon Destructive Testing
Conductivity Measurements
One of the uses of eddy current instruments is for the measurement of electrical conductivity.…
Posted inNon Destructive Testing
Tube Inspection
Eddy current inspection is often used to detect corrosion, erosion, cracking and other changes in…
Posted inNon Destructive Testing
Surface Crack Detection Using Sliding Probes
Many commercial aircraft applications involve the use of multiple fasteners to connect the multi-layer skins.…
Posted inNon Destructive Testing
Signal Filtering
Signal filtering is often used in eddy current testing to eliminate unwanted frequencies from the…
Posted inNon Destructive Testing
Reference Standards
In eddy current testing, the use of reference standards in setting up the equipment is…