Title :
Heat Transfer Effects in Scanning Anisotropic Magnetoresistive Imaging
Author :
He, D.F. ; Jia, J.P.
Author_Institution :
Nat. Inst. of Mater. Sci., Tsukuba, Japan
Abstract :
In our experiments of magnetic microscope and magnetic particle detection using an anisotropic magnetoresistive (AMR) sensor, we found that any nonmagnetic materials can also produce signals when they were close to the AMR senor. By simultaneously monitoring the temperature and the output signal of AMR sensor, we proved that these signals were caused by the thermal disturbance induces by the noncontact specimens.
Keywords :
heat transfer; magnetic anisotropy; magnetic field measurement; magnetic particles; magnetic sensors; magnetoresistive devices; temperature measurement; anisotropic In magnetoresistive sensor; heat transfer effects; magnetic field measurement; magnetic microscope; magnetic particle detection; noncontact specimens; nonmagnetic materials; scanning anisotropic magnetoresistive imaging; temperature monitoring; thermal disturbance; Copper; Magnetic particles; Magnetic resonance imaging; Materials; Temperature measurement; Temperature sensors; Voltage measurement; Anisotropic magnetoresistive (AMR); magnetic field measurement; thermal disturbance;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2088131
