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  • 1
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    Unknown
    Torque Simulator for Rotating Systems (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: New torque brake simulates varying levels of friction in bearings of rotating body. Rolling-tail torque brake uses magnetic force to produce friction between rotating part and stationary part. Simulator electronics produce positive or negative feedback signal, depending on direction of rotation. New system allows for first time in-depth study of effects of tail-fin spin rates on pitch-, yaw-, and roll-control characteristics.
    Keywords: MECHANICS
    Type: LAR-12751 , NASA Tech Briefs (ISSN 0145-319X); 6; 3; P. 311
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Dynamic Calibration of Pressure Transducers (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Sinusoidal calibration signal produced in 4- to 100-Hz range. Portable oscillating-pressure device measures dynamic characteristics of pressure transducers installed in models or aircraft at frequency and oscillating-pressure ranges encountered during unsteady-pressure-measurement tests. Calibration is over range of frequencies and amplitudes not available with commercial acoustic calibration devices.
    Keywords: MECHANICS
    Type: LAR-13094 , NASA Tech Briefs (ISSN 0145-319X); 8; 4; P. 517
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    Fatigue-failure load indicator (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Device easily and economically records loads at instant of failure.
    Keywords: MECHANICS
    Type: LAR-12027 , NASA Tech Briefs (ISSN 0145-319X); 2; 2; P. 3
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Flow equation for porous plug and capillary tube flow restrictors (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Development of flow measuring apparatus for determining low flow performance of resistojet thruster is discussed. Diagram of test equipment is presented. Operation of test equipment is described and numerical relationships are explained.
    Keywords: MECHANICS
    Type: GSC-11387
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 5
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    Liquid-Level Monitor for Pressurized Vessels (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Technique for monitoring water levels in pressurized stainless-steel cylinders, based on differences in gamma-ray attenuation coefficients in water and air, developed. Full-scale laboratory prototype system constructed to test technique. Technique usable with liquids other than water, since linear attenuation coefficients for intermediate-energy gamma rays in air considerably lower than in liquids. Also adaptable for continuous monitoring of liquid levels in resevoir systems and in underground storage tanks.
    Keywords: MECHANICS
    Type: LAR-13208 , NASA Tech Briefs (ISSN 0145-319X); 9; 3; P. 128
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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