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Electromagnets JC-NDE-3018


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Full course description

Course Description

Electromagnets have a wide variety of uses in all areas of industry. Additionally, the ability to temporarily create an electromagnet from a part made of ferromagnetic metals is key to performing magnetic particle examinations.

By the end of this course, you will be able to

• Define magnetic field strength

• Understand the unit of measure for magnetic field strength

• Differentiate between B and H fields

• Understand the effect of a material's permeability on the B field

• Define relative permeability

• Understand why a ferromagnetic metal has varying permeability

• Define coercive force

• Understand the relationship among residual magnetism, retentivity, and saturation

• Understand the relationship of magnetic field strength and magnetic flux density fields as represented by a hysteresis loop

• Understand the effects the properties of a ferromagnetic metal have on the hysteresis loop

Estimated completion time (hours): 1.5