Electromagnetic Linear Stage for cryogenic environment

The invention concerns an electromagnetically driven linear stage, specially designed for use in a cryogenic environment. Due to this approach, a fully contactless drive concept without any friction can be realized to create movement. Special attention has been made to cope with the differences in t...

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Bibliographische Detailangaben
Hauptverfasser:	IR BARTHOLOMEUS CATHARINA THOMAS BREE VAN, IR HUBERTUS LEONARDUS MATHIAS MARIE JANSSEN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BEARINGS BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CONVEYING DYNAMO-ELECTRIC MACHINES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HANDLING THIN OR FILAMENTARY MATERIAL HEATING LIGHTING MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS ROTARY BODIES OTHER THAN GEARING ELEMENTS SEMICONDUCTOR DEVICES SHAFTS SHOP CONVEYOR SYSTEMS STORING THERMAL INSULATION IN GENERAL TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention concerns an electromagnetically driven linear stage, specially designed for use in a cryogenic environment. Due to this approach, a fully contactless drive concept without any friction can be realized to create movement. Special attention has been made to cope with the differences in thermal expansion while cooling down to a few Kelv in. Also, dissipation has been minimized by keeping the electromagnetic coils in a temperature range of low resistance by cooling them and monitoring their resistance and temperature. An actively controlled element, which creates a friction-based locking between the moving table and the base frame, has been introduced as an option to cancel out any d issipation in the coils when the desired end position is reached.