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  • Other Sources  (2)
  • CYBERNETICS  (1)
  • Tectonics  (1)
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  • Other Sources  (2)
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  • 1
    facet.materialart.
    Unknown
    Strength variation and deformational behavior in anisotropic rock (1964)
    Elsevier
    In:  Professional Paper, State of Stress in the Earth Crust, Amsterdam, Elsevier, vol. 146, no. 16, pp. 281-300, (ISBN 1-4020-1729-4)
    Details
    Publication Date: 1964
    Keywords: CRUST ; Tectonics ; Stress ; Strength ; Anisotropy ; ERYBACKI
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
    facet.materialart.
    Unknown
    Tracking 3-D body motion for docking and robot control (1987)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An advanced method of tracking three-dimensional motion of bodies has been developed. This system has the potential to dynamically characterize machine and other structural motion, even in the presence of structural flexibility, thus facilitating closed loop structural motion control. The system's operation is based on the concept that the intersection of three planes defines a point. Three rotating planes of laser light, fixed and moving photovoltaic diode targets, and a pipe-lined architecture of analog and digital electronics are used to locate multiple targets whose number is only limited by available computer memory. Data collection rates are a function of the laser scan rotation speed and are currently selectable up to 480 Hz. The tested performance on a preliminary prototype designed for 0.1 in accuracy (for tracking human motion) at a 480 Hz data rate includes a worst case resolution of 0.8 mm (0.03 inches), a repeatability of plus or minus 0.635 mm (plus or minus 0.025 inches), and an absolute accuracy of plus or minus 2.0 mm (plus or minus 0.08 inches) within an eight cubic meter volume with all results applicable at the 95 percent level of confidence along each coordinate region. The full six degrees of freedom of a body can be computed by attaching three or more target detectors to the body of interest.
    Keywords: CYBERNETICS
    Type: Jet Propulsion Lab., California Inst. of Tech., Proceedings of the Workshop on Space Telerobotics, Volume 2; p 31-43
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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