Ferrite Rod Geometry for Magnetorquer Design

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SUMMARY

The discussion focuses on the design of solenoid magnetorquers for cubesats using unique ferrite rod geometries, specifically 19.6 cm in length and 0.67 cm in diameter. Participants highlight that the fluted design may require longer wire to achieve the same magnetic properties as a simple cylindrical rod, potentially increasing weight. The primary goal is to maximize the magnetic dipole moment for effective torque against Earth's magnetic field. Further information on part numbers and manufacturers is currently being sought by the team.

PREREQUISITES
  • Understanding of solenoid magnetorquer design principles
  • Familiarity with magnetic dipole moment concepts
  • Knowledge of ferrite materials and their properties
  • Basic principles of electromagnetism
NEXT STEPS
  • Research the impact of ferrite rod geometry on magnetic performance
  • Explore the design and optimization of solenoid magnetorquers
  • Investigate the weight implications of different ferrite rod designs
  • Look into manufacturers and part numbers for specialized ferrite rods
USEFUL FOR

Engineers and designers working on cubesat projects, aerospace professionals, and researchers interested in magnetorquer technology and ferrite material applications.

inversquare
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Hello!

We are working with some ferrite rods to build solenoid magnetorquers for a cubesat design. The geometry on these rods is unique. Are there benefits to this type of a geometry?
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They are 19.6 cm length x .67cm diameter.
 

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Can you give us a part number or a link to the manufacturer of the 6 fluted rods? What are they designed to do?

Since your coil does not contain ferrite where the flutes are, you will need a longer wire to surround the same section of ferrite. That will weigh more than when wound on a simple cylindrical rod.
 
I see! Good to know, so you would even recommend to just use a simple cylinder? We are trying to maximize magnetic dipole moment for torque against the magnetic field of the Earth.

As to part numbers etc, I wish. I have no part information. I am working on our team leads to get some more data on them. In the meantime, I thought I would ask on here from a physics standpoint how the flutes will affect things.
 

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