Engineering reference

Engineering reference

Linear Halbach Magnet Arrays – Benefits & Considerations

Linear Halbach arrays self-shunt the field to one side, but they need high-coercivity materials and careful assembly fixturing to be cost-effective.

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Engineering reference

Halbach Magnet Assemblies & Halbach Arrays: Are They Right For Your Application?

Halbach arrays produce a strong one-sided field, but added cost and assembly complexity mean they aren't always the right choice. Pros, cons, and trade-offs.

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Engineering reference

Magnets In Harsh Environments

Chemicals, heat, fluids, opposing fields, and sterilization all change the magnet you should specify. A guide to selecting material and coating by environment.

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Engineering reference

Factors to Consider when Designing & Manufacturing a Permanent Magnet Dipole Assembly

Gap size, field strength, overall envelope, and operating environment all interact when designing a permanent magnet dipole assembly.

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Engineering reference

Permanent Magnet Simulations

Six variables — coatings, steel, temperature, grade, exposure, and prototype validation — that determine whether a magnet simulation matches reality.

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Engineering reference

The Attraction of Repelling Magnets

When two magnets have very different permeance coefficients, opposing-pole pairs can attract — a result of partial demagnetization, not a violation of Coulomb's law.

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Engineering reference

FEA for Permanent Magnetic Circuit Simulations

A practical primer on using Finite Element Analysis to predict flux density, magnetic force, and sensor behavior in permanent magnet circuits.

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Engineering reference

Magnetic 3D Mapping Systems

Inside the custom 3D field mappers SM Magnetics uses — from the Brockhaus 460 to the Senis MMS-1A-RS — and how the data drives design, validation, and final…

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Engineering reference

Insights on Electromagnets vs Permanent Magnets

Permanent magnets win on close-distance force without power; electromagnets win on switchable, precisely controlled fields. A practical selection guide.

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Engineering reference

Magnetic Measurements Techniques

A practical tour of the measurement methods SM Magnetics uses every day — Helmholtz coils, hysteresisgraphs, VSMs, field mappers, force testers, and soft magnetic testers.

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