Computer Science – Sound
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986srbr.conf..169h&link_type=abstract
IN: Conference on Sounding Rockets, Balloons and Related Space Systems, 7th, Ocean City, MD, October 28-30, 1986, Technical Pape
Computer Science
Sound
Data Acquisition, Rocket-Borne Instruments, Sounding Rockets, Spaceborne Experiments, Actuators, Doors, Halley'S Comet, Servomechanisms, Spaceborne Photography
Scientific paper
Doors that allow scientific instruments to record and retrieve the observed data are often required to be designed and installed as a part of sounding rocket hardware. The motor-actuated vacuum door was designed to maintain a medium vacuum of the order of 0.0001 torr or better while closed, and to provide an opening 15 inches long x 8.5 inches wide while open for cameras to image Halley's comet. When the electric motor receives the instruction to open the door through the payload battery, timer, and relay circuit, the first operation is to unlock the door. After unlatching, the torque transmitted by the motor to the main shaft through the links opens the door. A microswitch actuator, which rides on the linear motion conversion mechanism, is adjusted to trip the limit switch at the end of the travel. The process is repeated in the reverse order to close the door. 'O' rings are designed to maintain the seal. Door mechanisms similar to the one described have flown on Aerobee 17.018 and Black Brant 27.047 payloads.
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