Magnetisation Curve and Hystersis Loop

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SUMMARY

The discussion focuses on identifying key parameters of the Hysteresis Loop in magnetic materials, specifically the saturation field and relative permeability values. The saturation field is defined as the point where the curve levels out, indicating maximum magnetization. The initial relative permeability is calculated as the slope of the B versus H curve at the origin, divided by the permeability of free space (μ0). The maximum relative permeability is determined by the maximum slope of the B versus H curve, and it is not infinite.

PREREQUISITES
  • Understanding of Hysteresis Loop concepts
  • Familiarity with magnetic permeability and its calculations
  • Knowledge of SI units, particularly permeability of free space (μ0)
  • Basic grasp of magnetic field (H) and magnetic flux density (B) relationships
NEXT STEPS
  • Research the calculation methods for saturation field in magnetic materials
  • Study the derivation of initial relative permeability from B versus H curves
  • Explore the significance of maximum relative permeability in material science
  • Investigate practical applications of Hysteresis Loops in magnetic material characterization
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Students and professionals in materials science, electrical engineering, and physics, particularly those involved in magnetic material analysis and characterization.

drcrabs
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Ok. I am having trouble identifing the saturatoin field on the Hysteresis Loop. How do I find it?Also the initial and maximum relative permeability. Is the maximum relative permeability infinte?
 
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drcrabs said:
Ok. I am having trouble identifing the saturatoin field on the Hysteresis Loop. How do I find it?Also the initial and maximum relative permeability. Is the maximum relative permeability infinte?
The "saturation field" is the field at which the curve just about levels out.
The initial relative permeablilty is the slope (divided by mu0 in SI units)
at the origin for H starting from zero.
The max RP is the max slope of the B vs H curve.
 

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