Electricity: measuring and testing – Magnetic – Hysteresis loop curve display or recording
Patent
1998-02-19
2000-08-08
Strecker, Gerard
Electricity: measuring and testing
Magnetic
Hysteresis loop curve display or recording
324211, 324222, 324225, 324239, G01R 3312, G01R 3314, G01N 2772
Patent
active
061006858
ABSTRACT:
A high frequency magnetic properties measuring system is used for measurement of high frequency magnetic properties, for example high frequency core-loss and magnetic hysteresis curve (coercivity force, magnetic flux density, permeability) in soft magnetic materials such as ferrites, permalloy and amorphous magnetic cores used in inductors, transformers and filters of various electric and electromagnetic systems and devices such as computers and multimedia devices. A digital oscilloscope is operated as a waveform detection unit for measuring magnetic fields and magnetic flux density. A signal generator and a power amplifier are operated as a signal input unit. The digital oscilloscope and the signal generator are remotely controlled through a General Purpose Interface Bus by the computer. The high frequency magnetic properties are measured by remote control and the resulting data can be outputted and stored by the computer. When measuring the high frequency signal, the core-loss can be analyzed by applying suitable waveforms.
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Kim Ki Uk
Song Jae Sung
Korea Electrotechnology Research Institute
Strecker Gerard
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