What role does a test probe play in Eddy Current Testing?

In Eddy Current Testing, the test probe serves a vital function by collecting data that is essential for analyzing the structural integrity of conductive materials. The probe typically contains coils through which an alternating current flows, generating alternating magnetic fields. As the probe is moved over the material being tested, these magnetic fields induce eddy currents in the material. The response of these induced eddy currents is affected by various factors, such as material conductivity, thickness, and the presence of defects or discontinuities. By analyzing the data collected from the probe, technicians can assess the material's condition, identify flaws, and ensure that components meet safety and quality standards.

Other options do not accurately describe the role of a test probe in this context. Generating a permanent current or enhancing the magnetic field is not typical functions of a test probe in Eddy Current Testing, as these processes relate more to the power supply and the testing technique itself. Additionally, measuring temperature is unrelated to the primary purpose of the probe, which is focused on detecting material properties and defects through induced eddy currents.