What does the analysis of signal strength in Eddy Current Testing help to determine?

The analysis of signal strength in Eddy Current Testing plays a crucial role in identifying and quantifying the presence and size of defects within a material. When eddy currents are induced in a conductive material, any discontinuities such as cracks, pits, or inclusions will disrupt the flow of these currents, resulting in changes in the signal received by the testing equipment.

By interpreting these fluctuations in signal strength, technicians can effectively determine both the existence of defects and their relative sizes based on the amplitude and phase shifts of the signal. Larger defects will typically produce more significant changes in signal strength, allowing for a degree of quantitative analysis regarding the severity or extent of the imperfection.

This ability to correlate signal strength with defect characteristics makes it an essential element of Eddy Current Testing, facilitating efficient inspections for structural integrity and performance evaluations in various applications.