Related Experiment Video
Updated: Jul 2, 2026
08:50
High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
Published on: May 12, 2023
Inexpensive moving magnet-stationary sample susceptibility balance
1Department of Chemistry, University of Colorado at Denver, Denver, Colorado 80202Department of Chemistry, University of Denver, Denver, Colorado 80208.
The Review of Scientific Instruments
|July 1, 1978
Summary
This study introduces a novel magnetic susceptibility system. It utilizes Hicorex permanent magnets, enabling precise measurements using standard analytical balances.
Area of Science:
- Physics
- Materials Science
Background:
- Magnetic susceptibility is a fundamental property for characterizing magnetic materials.
- Traditional methods for measuring magnetic susceptibility can be complex and require specialized equipment.
Purpose of the Study:
- To describe a new magnetic susceptibility system.
- To enable accurate measurements using readily available analytical balances.
Main Methods:
- The system measures changes in magnet weight.
- Hicorex (cobalt rare earth) permanent magnets are employed.
- The magnet's weight is designed to be compatible with standard analytical balances.
Main Results:
- A functional magnetic susceptibility system was successfully constructed.
- The system allows for weight-based measurement of magnetic properties.
Conclusions:
- The described system offers a practical approach to magnetic susceptibility measurements.
- The use of Hicorex magnets within standard balance capacity simplifies the experimental setup.
Related Concept Videos
01:17Magnetic Damping
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
01:31Magnetic Susceptibility and Permeability
In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...
01:26Diamagnetism
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.