Lab Equipment for Teaching Physics

Features

• Rotary base plate with adjustable leveling

• High sensitivity magnetoresistive sensor

• Measures horizontal/vertical components and declination of the earth's magnetic field

  
  

Introduction

The Earth's magnetic field serves as a natural magnetic source with diverse applications in military, aviation, marine, industrial, medical, and scientific fields. This apparatus employs a Permalloy magnetoresistive (MR) sensor to measure geomagnetic field parameters. Through hands-on experiments, students can learn calibration techniques for a magnetoresistive sensor and use it to measure the horizontal and vertical components of the Earth's magnetic field, as well as its declination angle.

This instrument is designed with the following features:

1. A rotatable base plate with adjustable horizontal and vertical levels for precise positioning.  

2. A highly sensitive magnetoresistive sensor with a sensitivity of 50 V/T and a resolution reaching 10⁻⁷ to 10⁻⁸ T.  

3. Capable of measuring the strength, direction, and horizontal/vertical components of magnetic fields.

Using this instrument, the following experiments can be accomplished:

1. Measure weak magnetic fields using a magnetoresistive sensor

2. Determine the sensitivity of a magneto-resistance sensor

3. Measure the horizontal and vertical components of the geomagnetic field and calculate its declination

4. Compute the total geomagnetic field intensity

The instruction manual provides comprehensive experimental configurations, theoretical principles, step-by-step procedures, and sample results. For further details, click Experiment Theory and Contents  to learn more about this apparatus. 

Parts and Specifications