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Development of a drive system for a sequential space cameraBreadboard models of single and dual motor drives for the shutter, claw and magazine of a space camera system were designed and tested. The single motor technique utilizes a single electronically commutated motor to drive the claw and shutter without resorting to a solenoid actuated clutch for pulse operation. Shutter speed is established by a combination of the cinemode speed and the opening of the conventional DAC two piece shutter. Pulse mode operation is obtained by applying power at a fixed clock rate and removing power at an appropriate point in the mechanical cycle such that the motor comes to rest by system friction. The dual motor approach utilizes a stepper motor to drive the shutter and an electronically commutated dc motor to drive the claw and magazine functions. The motors are synchronized electronically.
Document ID
19760018450
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Sharpsteen, J. T. (Perkin-Elmer Corp. Pomona, CA, United States)
Solheim, C. D. (Perkin-Elmer Corp. Pomona, CA, United States)
Stoap, L. J. (Perkin-Elmer Corp. Pomona, CA, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1976
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-CR-147759
SPO-30352-ADD
Accession Number
76N25538
Funding Number(s)
CONTRACT_GRANT: NAS9-14573
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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