Lab Equipment for Teaching Physics

Features

• Easy to use, simple structure, and stable performance

• Ample experimental examples

• 3 different samples

  
  

Introduction

Magnetic materials have a wide range of applications. Magnetization curve and hysteresis loop reflect the magnetization characteristics of magnetic materials under the impact of external magnetic fields. Dynamic hysteresis loop is the AC magnetic characteristic of magnetic materials, which has important applications in the industry, because the core of AC motors and transformers works in AC state.

The magnetic properties of a ferromagnetic material change with the change of temperature. When the temperature rises to a certain value, the material will transit from ferromagnetic state to paramagnetic state. This temperature is called Curie temperature. Determining the curie temperature of ferromagnetic materials is not only of great significance to the research and development of magnetic materials and magnetic devices, but also to the applications of engineering technology.

This experimental apparatus can not only measure the magnetic properties, but also observe the shape change of hysteresis loop caused by the change of magnetic moment with temperature variation, and measure the temperature when the spontaneous magnetization disappears (i.e. Curie temperature). The apparatus is simple in structure and stable and reliable in performance. Through the experiments of measuring Curie temperature and hysteresis loop of soft magnetic ferrite materials, students can deepen the understanding of the basic characteristics of magnetic materials. The following experiments can be performed:

1. Measure the Hysteresis Loop of Soft Magnetic Ferrite Material:

   Students can generate and analyze the hysteresis loop, from which the coercive force (the intensity of the external magnetic field required to reduce the magnetization to zero) and residual magnetism (the remaining magnetization after the external field is removed) of the material can be obtained.

2. Measure the Magnetization Curve of Soft Magnetic Ferrite:

   Students will investigate the basic magnetization curve of soft magnetic ferrite and study the relationship between magnetic field strength and magnetic conductivity. This curve provides insights into the material’s magnetic permeability and how it responds to external magnetic fields.

3. Determine the Curie Temperature of the Ferromagnetic Material:

   By analyzing the temperature-dependent change in magnetization, students can determine the Curie temperature, the point at which the material transitions from ferromagnetic to paramagnetic behavior.

The instruction manual contains comprehensive materials including experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.

Specifications