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Magnetic Fields of an Electric Guitar Pickup - PowerPoint PPT Presentation


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Magnetic Fields of an Electric Guitar Pickup. A Finite Element Analysis ( FEA ) using flexPDE. Craig E. Nelson - Consultant Engineer. Purpose of the Numerical Experiment:

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Presentation Transcript
slide1

Magnetic Fields of an Electric Guitar Pickup

A Finite Element Analysis ( FEA ) using flexPDE

Craig E. Nelson - Consultant Engineer

slide2

Purpose of the Numerical Experiment:

The purpose of this numerical experiment is to learn something about the magnetic fields in and around a guitar string magnetic pickup coil.

slide3

Steel Guitar String

Coil Wound Around a Iron Core Creates an Electromagnet

Line of Symmetry

Vector Plot of the Magnetic Field Intensity – the H field

slide4

Steel Guitar String

Coil Wound Around a Iron Core Creates an Electromagnet

Line of Symmetry

Normalized Vector Plot of the Magnetic Field Intensity – the H field

slide5

Steel Guitar String

Coil Wound Around a Iron Core Creates an Electromagnet

Line of Symmetry

Vector Plot of the Magnetic Flux Density – the B field

slide6

Steel Guitar String

Coil Wound Around a Iron Core Creates an Electromagnet

Line of Symmetry

Normalized Vector Plot of the Magnetic Flux Density – the B field

slide7

Steel Guitar String

Coil Wound Around a Iron Core Creates an Electromagnet

Line of Symmetry

Log Plot of the Magnitude of the Magnetic Flux Density – the B field

slide10

Summary and Conclusions

A finite element model has been developed that allows insight into the nature and magnitude of magnetic fields in and around a guitar pickup sensor.

The model could be developed in many further ways.