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  • 1
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    Unknown
    An electric motor with magnetic bearings: A concept (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Because same magnetic flux is used to control rotor as to drive it, size, weight, and power required are minimized. Constant total current keeps motor torque invarient, and absence of mechanical bearings eliminates wear and reduces frictional power loss.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: XGS-07805
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    Rotary Transformer Seals Power In (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Rotary transformer originally developed for spacecraft transfers electrical power from stationary primary winding to rotating secondary without sliding contacts and very little leakage of electromagnetic radiation. Transformer has two stationary primary windings connected in parallel. Secondary, mounted on a shaft that extends out of housing, rotates between two windings of primary. Shaft of secondary is composed of electrically conducting inner and outer parts separated by an insulator. Electrical contact is made from secondary winding, through shaft, to external leads.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: GSC-12595 , NASA Tech Briefs (ISSN 0145-319X); 6; 1; P. 9
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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