Dynamic Hysteresis Loop Measurement Equipment

DESCRIPTION / TECHNICAL SPECIFICATIONS

Introducing an essential experimental system for investigating the dynamic (AC) characteristics of magnetic materials a critically important topic as most components like transformer cores and electric motors operate in an AC state This apparatus is designed to provide a hands-on understanding of the magnetization curve and hysteresis loop of both soft and hard magnetic materials comparatively

The primary function of this device is to allow students to visually observe and quantitatively measure the hysteresis loops of two very different material types soft magnetic ferrite and hard magnet die steel By comparing the shape and size of the loops from both materials students can directly understand the fundamental differences in properties like permeability remanence and coercivity

One of the most unique pedagogical values of this apparatus is its emphasis on instrument calibration The experiment explicitly teaches students how to calibrate the division values of the X and Y axes of their oscilloscope This skill transforms the oscilloscope from a simple viewing device into a powerful quantitative measurement tool allowing them to accurately determine key magnetic parameters directly from the hysteresis loop display

More than just static measurements this equipment enables the investigation of the influence of AC frequency on magnetic characteristics By using the continuously adjustable frequency sine wave signal generator students can observe how the shape of the hysteresis loop changes as the frequency increases providing critical insight into AC losses and the behavior of materials under different operating conditions

Designed with safety and accuracy as priorities the AC signal source is isolated from the main power supply to ensure safe operation A high-accuracy AC digital voltmeter and a finely adjustable sine source ensure that the data obtained is reliable and repeatable The apparatus is perfectly suitable for a range of educational levels from trade schools to basic physics and comprehensive research experiments at universities

Overall this apparatus is a complete and practical workstation for any electrical engineering materials science or modern physics laboratory It provides obvious physical phenomena reliable experimental data and most importantly invaluable practical skills in both magnetic material characterization and instrument calibration for future engineers and scientists