Focus drive mechanism for the International Ultraviolet Explorer

Details Focus drive mechanism for the International Ultraviolet Explorer Focus drive mechanism for the International Ultraviolet Explorer

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988spie..887..102s&link_type=abstract

IN: Acquisition, tracking, and pointing II; Proceedings of the Meeting, Los Angeles, CA, Jan. 14, 15, 1988 (A89-15847 04-17). Be

Computer Science

Iue, Mechanical Drives, Spacecraft Instruments, Mirrors, Structural Design, Voltage Regulators

Scientific paper

The mechanical design of the compact and robust focus drive apparatus developed for the IUE's scientific instrumentation is based on a novel planetary drive that converts the angular increments of a permanent magnet stepping motor into simultaneous linear displacements of three ball screws supporting the secondary mirror. Significant torque margins are thus produced while yielding exceptionally smooth and reliable operation. Attention is given to mechanical drive materials-selection criteria.

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