Non-contact linear slider for cryogenic environment
arXiv:2402.00557 · doi:10.1016/j.mechmachtheory.2011.09.002
Abstract
A non-contact linear slider based on stable superconducting magnetic levitation with a long permanent magnet as a slider and two fixed superconducting disks which define the slide way has been designed, built and tested. The slider can be moved stably along a stroke of 11.5mm by supplying a low current in a coil located at the end of the stroke while the levitation remains stable providing a reliable mechanism for linear displacement in a cryogenic environment. The response is linear with a sensitivity of 52 μm/mA for displacements lower than 6 mm. Run out, pitch, yaw and roll have been measured demonstrating an overall good performance. In all cases the measured hysteresis was lower than 250 μm and the measured run out was also lower than 250 μm both for Y and Z axis. Roll and yaw were always below 300 μrad, that is one order of magnitude lower than the pitch (4500 μrad).
Cited by in corpus (5)
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- Superconducting Noncontact Device for Precision Positioning in Cryogenic Environments
- Engineering and performance of a contactless linear slider based on superconducting magnetic levitation for precision positioning
- Improving Resolution and Run Outs of a Superconducting Noncontact Device for Precision Positioning
- Dynamics of a Superconducting Linear Slider