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DRIRU I/SKIRU - The application of the DTG to spacecraft attitude controlThe dynamically tuned gyro (DTG) was developed to replace the floated, rate integrating gyro used for space attitude control, as the DTG fulfills cost, performance, and reliability requirements not satisfied by its predecessor. The use of this gyro in the Dry Gyro Inertial Reference Unit I (DRIRU I) marked the first application of a DTG in a spacecraft attitude reference unit. Design and performance characteristics of DTG application in the Singer-Kearfott Inertial Reference Unit (SKIRU) are outlined, for example its minimal weight (7 lb), and operational reliability. The DTG has accomplished 156,000 failure-free hours, and a chart, logging test performance, indicates that this and other requirements were more than sufficiently satisfied. The unit has an unparalleled life span, with several units still operating after 70,000 to 130,000 hours, and a random drift which always remains under 0.0005 deg/h. Potential for improvements, such as drift performance, are considered.
Document ID
19820055464
Document Type
Conference Proceedings
Authors
Swanson, C. O. (Singer Co., Kearfott Div., Wayne NJ, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
AIAA PAPER 82-1624
Meeting Information
Guidance and Control Conference(San Diego, CA)
Distribution Limits
Public
Copyright
Other