Rotating sample manipulator for nano imaging
Technology demonstrator
A rotating sample manipulator for nano imaging was developed for material and life sciences research.
Working for several scientific institutes and industrial partners, MI-Partners recognized the need for a high accuracy sample manipulator (tomography, x-ray crystallography and microscopy). Because of our broad experience in (cryogenic) mechatronics, we were able to translate needed research functionality into a sample manipulator concept.
The sample manipulator, based on contactless magnetic levitation, offers highly repeatable off-center accuracy in the nanometer range during rotation. This off-center rotation allows for 3D sample imaging. See the video.
Challenges
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Actuator design with very low heat dissipation
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Sensor signal synchronization
Key Competences
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Actuator development
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Electro-magnetic simulations
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Metrology
Results
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6DoF floating (endless lifetime)
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+/- 3 mm stroke
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Nanometer accuracy (< 5 nm)
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60 RPM
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Vacuum and cleanroom compatible
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Step or flyscan mode
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Hollow center design (allows for cryogenic cooling)