Magnetic sensors used in NDT or NDE
2023-Jan-21: Ramos, Science Direct (2014): Ramos, Helena G., and A. Lopes Ribeiro. "Present and future impact of magnetic sensors in NDE." Procedia Engineering 86 (2014): 406-419. https://www.sciencedirect.com/science/article/pii/S187770581402013X/pdf?md5=fcd2f5583c592beb867b38163a3c157b&pid=1-s2.0-S187770581402013X-main.pdf Sensitivities Comparison among Different types of commonly-used Magnetic Sensors in NDT Research GMR sensors Methods: 1) Eddy Current Testing (ECT) and 2) Magnetic Flux Leakage (MFL). In both of them a magnetic field is applied to the object under test and any resulting changes in the magnetic flux density in the region of interest are observed. ECT or ECTP (Eddy Current Testing Probes) MFL (Magnetic Flux Leakage) method - see figure 4 above. With MFL methods a magnetic field is induced inside the part test and the distribution of the resulting lines of magnetic flux is determined by the magnetic permeability c...
