Eddy Current Impedance Plane Analysis
Eddy current impedance plane analysis is a graphical method for measuring the complex impedance of a test coil, separating both conductivity and lift-off effects. It improves accurate flaw evaluation in electromagnetic material testing.
Physical-chemical mechanism of action
Eddy current impedance plane analysis measures the complex resistance of a test coil under the influence of eddy currents. This resistance consists of a real component (conductivity) and an imaginary component (lift-off effects).
Metallurgical relevance & risks in welding
This analysis enables a more precise flaw evaluation in electromagnetic material testing. Incorrect interpretations can lead to inaccurate results, compromising the reliability of the test.
Workshop practice & instructions
To perform the eddy current impedance plane analysis correctly, the test coil must be placed under a constant current flow. The measurement should be done in a quiet environment to minimize interfering factors. The results should be thoroughly interpreted and compared with reference data.