NASA NTRS · 19760000497
DC drive system for cine/pulse cameras
Abstract
Camera-drive functions are separated mechanically into two groups which are driven by two separate dc brushless motors. First motor, a 90 deg stepper, drives rotating shutter; second electronically commutated motor drives claw and film transport. Shutter is made of one piece but has two openings for slow and fast exposures.
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Gerlach, R. H., Sharpsteen, J. T., Solheim, C. D., Stoap, L. J.. 1977-03-01. DC drive system for cine/pulse cameras. https://ntrs.nasa.gov/citations/19760000497
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