A Study of Leakage Magnetic Flux Detector Using Hall Sensors Array
It is important to estimate a magnetic field’ intensity distribution for the application of to industrial nondestructive evaluations. A magnetic camera provides the same spatial resolution and a distribution of a quantitative magnetic field with homogeneous lift-off. The method for arraying sensors is important on the magnetic camera because it must obtain a high spatial resolution. This work proposes an equation to evaluate the limitation of spatial resolution on the condition of the decided size of a magnetic sensor package. The possibility of obtaining the high spatial resolution in spite of the above-mentioned limitation would also be verified.
Ichsan Setya Putra and Djoko Suharto
J. Y. Lee et al., "A Study of Leakage Magnetic Flux Detector Using Hall Sensors Array", Key Engineering Materials, Vols. 306-308, pp. 235-240, 2006