A comparison of satellite drag measurement techniques.
Drag measuring requirements and comparison of accelerometer or drag-free satellite control systems usage for atmospheric density determination
Debra, D. B.↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Experimental strapdown redundant sensor inertial navigation system.
Strapdown redundant experimental sensor inertial navigation package containing gyros and accelerometers, discussing signal real time processing by digital computer
Evans, F. A.↗
Saturn V navigation update.
Navigation state vector update effect on lunar mission completion capability for Saturn 5, emphasizing hardware and scheme errors and accelerometer failure
Obrien, R. M.↗
Prediction of faults in components of machinery in motion
Mechanical vibrations of individual moving parts are sensed with piezoelectric accelerometers and measured electronically from outside the working machine.
Tatge, R. B.↗
Dynamic precession damper for spin stabilized vehicles Patent
Dynamic precession damping of spin-stabilized vehicles by using rate gyroscope and angular accelerometer
Garner, H. D.↗
Recent advances in single degree of freedom inertial sensors.
Floated single degree of freedom gyroscope and pendulous integrating gyroscope accelerometer, discussing design features as inertial sensors for future space missions
Andersen, J. P.↗
Gravity - First measurement on the lunar surface.
Apollo 11 lunar module gravity measurement on lunar surface with pulsed integrating pendulous accelerometer to compute anomaly and radius at landing site
Nance, R. L.↗
Comparative in-flight thrust measurements of the SERT II ion thruster
In-flight thrust measurement methods on SERT 2 ion thrustors, using accelerometer, electrical parameters and orbit change
Berkopec, F. D.↗
Experimental strapdown redundant sensor inertial navigation system
Strapdown redundant experimental sensor inertial navigation package containing gyros and accelerometers, discussing signal real time processing by digital computer
Evans, F. A.↗
Tracking antenna deformation program
Computer program provides capability for analyzing accelerometer data obtained from impulsive testing of large antennas, and of determining from that data pertinent characteristics /amplitude, frequency, damping/ of the structural modes excited by the impulse.
Galef, A. E.↗
Servo-controlled decoupler eliminates oscillations in fluid flow - A concept
Active control technique, using accelerometer-controlled servovalve to operate a compensating piston, effectively eliminates pressure fluctuations due to longitudinal structural vibration within a relatively long bandwith.
Fenwick, J. R.↗
Omnidirectional acceleration device Patent
Omnidirectional liquid filled accelerometer design with liquid and housing temperature compensation
Geipel, D. H.↗
Some notes on torque generator reaction torque and its effect on inertial instruments operating in the pulsed balance mode
Permanent magnet torque generator reaction torque effect in precision gyros and accelerometers
Fuhrman, T. A.↗
Some applications of ferrofluid magnetic colloids
Subdomain magnetic particles ferrofluid colloidal dispersions, for energy conversion devices, viscous dampers, accelerometers, gyroscope supports and specific gravity meters
Kaiser, R.↗
Peak acceleration limiter
Device is described that limits accelerations by shutting off shaker table power very rapidly in acceleration tests. Absolute value of accelerometer signal is used to trigger electronic switch which terminates test and sounds alarm.
Chapman, C. P.↗
Control of acceleration in sine/random vibration tests
Sampling output levels of accelerometers using largest output or any combination of outputs provide control of shaker for spacecraft vibration qualification tests.
Woodbury, R. C.↗
Gravitational gradiometer measures mass changes
Differential angular accelerometer, utilizing complex geometric configurations and spring-coupled rotating masses, demonstrates feasibility of measuring mass distributions of celestial bodies by detecting spatial gradients of their fields from orbiting vehicles. Applications include mineralogical surveying, geodetic engineering, and solar system investigation.
Bell, C. C.↗
Linear accelerator: A concept
Design is proposed for inexpensive accelerometer which would work by applying pressure to fluid during acceleration. Pressure is used to move shuttle, and shuttle movement is sensed and calibrated to give acceleration readings.
Mutzberg, J.↗