Eddy-current Testing in Practice |
Common terms and phrases
0.6 RESISTIVE COMPONENT 6061 ALUMINUM ALLOY amplitude apparent infinite thickness austenitic balancing network calibration curve Coil in Presence coil's impedance conductivity and permeability conductivity equal curves of Fig DIAL SETTING dimensional variations discontinuity signals eddy-current method eddy-current testing effects electrical conductivity encircling coil exciting coil exciting current f/f ratio f/fc function IACS illustrated in Fig impedance curves Impedance Plane Impedograph Inconel tube INCREASING induced currents induced eddy currents instrument Intergranular Corrosion large number magnetic permeability Mark X MTR Mark X Probe MARK XI mechanical and thermal Metal Identification Meter metal specimen metal surface mils MINIMUM CLADDING THICKNESS MTR Fuel Plate Nondestructive Testing operating frequency oscillator phase angle phase detectors Plane of Mark probe coil reactance resistive and reactive RESISTIVE COMPONENT Fig sensitivity separation shown in Fig signal trace stainless steel tube wall tuning dial UNCLASSIFIED ORNL-LR-DWG values of f/f variable-frequency oscillator variables varying thickness voltage wall thickness