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Non-magnetic

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  • PPS-series can be customized to operate in a non-magnetic environment

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Description

Non-Magnetic
 
Magnetically sensitive applications require motion systems that are compatible with a defined magnetic environment. In practice, there are two primary requirements: positioners that must not generate a magnetic field, and positioners that must remain unaffected by external magnetic fields, which means using low-permeability materials. Both conditions need to be clearly specified, as they directly affect measurement accuracy, imaging quality, and overall system performance.
Magnetic permeability is a measure of how a material responds to a magnetic field. Materials with a relative permeability near 1 are generally considered non-magnetic because they neither concentrate nor distort magnetic fields. For example, aluminum has a relative permeability of approximately 1.000022, making it nearly invisible to magnetic fields, while soft iron has a relative permeability of 200-5000, which can strongly influence sensitive magnetic environments. Careful material selection, component sourcing, and assembly ensure the system meets the necessary permeability requirements.
 
Piezo Motor Technology, Intrinsically Non-Magnetic
 
Micronix piezo-based stages are the foundation for non-magnetic applications. Unlike electromagnetic motors, piezo elements operate through solid-state deformation rather than magnetic fields or current-driven coils. This means the motors themselves produce no magnetic field and are unaffected by external magnetic influences.
To support demanding applications, Micronix positioners are constructed using low-permeability, non-magnetic materials throughout. This allows the stage to deliver precise, repeatable motion while operating near sensitive magnetic equipment.
 
Typical Materials Used in Non-Magnetic Configurations 
 
  • Bare aluminum structural elements
  • Compatible encoders with glass scales
  • Ceramic and titanium bearings and hardware
  • Non-magnetic D-sub connectors for motor and encoder
  • Silver-braided cable jackets
  • Brass threaded inserts
 
Contact us to discuss your next non-magnetic application. 
 
 
 

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