Dynamic Hysteresis Loop Measuring Apparatus

DESKRIPSI / SPESIFIKASI TEKNIS

Dynamic Hysteresis Loop Measuring Apparatus

Magnetic materials are extensively used in many fields such as communication, data storage, electric power, electronic instrument and vehicle. Magnetization curve and hysteresis loop represent magnetization characteristics of materials, according to which they can be used in motors, transformers, electric magnet and magnetic memory. Dynamic hysteresis loop represents ac magnetic characteristics of materials, which has important use in industry, because cores of ac motors and transformers are all operating at ac state.

Features

►► Two types of typical materials such as soft magnetic ferrite and hard magnet die steel are provided for measuring, of which the magnetic characteristic parameters are obviously different, parameter of hysteresis loop of hard magnetic material at low magnetic intensity can be measured.

►► Sine signal source is separated from 220 v ac power supply, so experiment is safe and reliable.

►► High accuracy ac digital voltmeter and fine adjustable sine source are provided. Calibration of division value of x and y axis of the oscilloscope is very convenient and accurate. It is a high grade apparatus for observing dynamic hysteresis loop and it is suitable for basic physics experiment in universities and colleges and trade schools, design and comprehensive experiment as well as lecture experiment.

Experiments

►► Measuring fundamental magnetic curve and hysteresis loop of soft magnetic ferrite and hard magnet die steel, finding out the relationship of saturation induction density, coercive force and residual induction and magnetic permeability to magnetic field.

►► Observing effluence of ac frequency to magnetic charac.

►► Learning how to calibrate division value of x and y axis of the oscilloscope parameters of ellipse hysteresis loop.

►► Observing ellipse hysteresis loop of hard magnetic materials at low field intensity, measuring ac magnetic characteristic.

Specification