Title :
Magneto-optical visualizer-magnetometer of high magnetic fields
Author :
Valeiko, M.V. ; Vetoshko, P.M. ; Rononov, R.I. ; Perlov, A.Ya. ; Sharonov, M.Yu. ; Toporov, A.Yu.
Author_Institution :
Lal Ltd., Moscow, Russia
fDate :
11/1/1995 12:00:00 AM
Abstract :
A device for visualization of the magnetic fields in the range 10-105 Oe by the magneto-optical method with spatial resolution ~10 microns is proposed. Thin epitaxial ferrite-garnet “easy axis in-plane” films were used as the measuring element. The dynamic range of the device was limited by 8-bit frame-grabber and radio-frequency circuit noise and was really equal to 42 dB. To broaden the range of visualized magnetic fields a set of epitaxial films with different parameters were applied. Some possible applications of this device are considered
Keywords :
garnets; magnetic epitaxial layers; magneto-optical sensors; magnetometers; 8 bit; dynamic range; epitaxial ferrite-garnet easy axis in-plane films; frame-grabber; magnetic field visualization; magneto-optical magnetometer; radio-frequency circuit noise; spatial resolution; Circuit noise; Dynamic range; Ferrite films; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetooptic devices; Radio frequency; Spatial resolution; Visualization;
Journal_Title :
Magnetics, IEEE Transactions on
