The benefits of magnetic levitation in neutron choppers - ISIS

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$Single Crystal Diffraction: Shelx tutorial - ISIS$

Contact Free Rotation • Magnetic bearings are standard technology for • Semiconductor manufacturing • Turbomolecular pumps • CO 2 Laser gas blowers • Neutron choppers • Lubrication free, high speed rotation…in vacuum • No activated grease or oil • Low vibration using auto-balancing software • Low and consistent drag, helps phase performance 2012-09-19 ©SKF Slide 16 [Code] SKF [Organisation] Slide 16
Availability and Reliability • No contact = no wear = zero maintenance • Demonstrated Mean Time Between Failures (for full systems): • Turbomolecular pumps > 500,000 hours (~57 years) • Semiconductor RTP > 1,000,000 hours (~114 years) • 3.25M hours for RTP controller alone • Critical for beam up-time and reducing maintenance of activated parts • Rotors and actuators have little that can fail if made properly • Like all electronic assemblies, controllers can fail over time, but… • …they are easily replaced (outside the beam line) 2012-09-19 ©SKF Slide 17 [Code] SKF [Organisation] Slide 17
Page 1 and 2: The Benefits of Magnetic Levitation
Page 3 and 4: SKF Knowledge Slide 3
Page 5 and 6: Introduction to SKF Magnetic Bearin
Page 7 and 8: Slide 7 How Magnetic Bearings Work
Page 9 and 10: Slide 9
Page 11 and 12: Rotordynamic Modeling and Simulatio
Page 13 and 14: Magnetic Bearings: no longer a nich
Page 15: Technology Advantages Contact Free
Page 19 and 20: Things to Watch For • Benefits co
Page 21 and 22: SKF global installations bring expe
Page 23 and 24: Drive controller • Fully integrat
Page 25 and 26: Meeting Industry Trends 5th generat
Page 27: Slide 27

The benefits of magnetic levitation in neutron choppers - ISIS

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