THE EFFECT OF PROPELLANT SLOSHING ON THE STABILITY OF AN ACCELEROMETER CONTROLLED RIGID SPACE VEHICLE
Effect of propellant sloshing on stability of accelerometer controlled rigid space vehicle
ACCELEROMETER↗
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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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The evaluation of several commercially available accelerometers
Accelerometer test program to determine instrument error and reliability
ACCELEROMETER↗
Superconducting suspension for a sensitive accelerometer.
Permanent magnet suspension over superconducting surface used as linear bearing for low level accelerometer
ACCELEROMETER↗
Design, development, fabrication, and delivery of three /3/ strain gage accelerometers Final report, Jun. 23, 1964 - Jun. 23, 1965
Strain gauge accelerometer based on anisotropic stress effect in P-N junctions using piezoelectric crystals
P-N JUNCTION↗
Feasibility study of piezotransistor accelerometers Annual report
Feasibility of using p-n-junction devices as transducer for accelerometer - mechanical stress effects on electric characteristics of p-n junction devices
P-N JUNCTION↗
Design of a rectilinear accelerometer Final report
Design of rectilinear spring-mass accelerometer for lateral control of Saturn launch vehicle
ACCELEROMETER↗
Development of a Miniature Electrostatic Accelerometer /MESA/ for low g applications Summary report
Design, fabrication, and testing of miniature digital electrostatic accelerometer for low gravity measurements in space
DIGITAL TRANSDUCER↗
Investigation of lateral acceleration-bending coupling for a large booster utilizing multi accelerometers
Selection of accelerometer positions to predict system stability of lateral acceleration-bending coupling in large flexible booster
ACCELEROMETER↗
Approximation of reentry angles of attack for a spinning body from rate-gyro and accelerometer data
Approximation of reentry angles of attack for spinning body from rate-gyro and accelerometer data
ACCELEROMETER↗
Measuring rotational motion with linear accelerometers.
Vehicle angular velocity determined, using configurations with only linear accelerometers and no gyroscopes for inertial navigation systems
LINEAR ACCELERATOR↗
Feasibility study of piezotransistor accelerometers Annual report, Sep. 1965 - Oct. 1966
Piezojunction effect and silicon needle considered as sensory devices in accelerometers and transducers
PIEZOELECTRIC PRESSURE GAUGE↗
Highly sensitive accelerometer
Development of three-directional electrostatic accelerometer with capacitive detection
ENGINEERING DEVELOPMENT↗
Measuring rotational motion with linear accelerometers.
Vehicle angular velocity determined, using configurations with only linear accelerometers and no gyroscopes for inertial navigation systems
INERTIAL GUIDANCE↗
Miniature electrostatic accelerometer /MESA/.
Miniature electrostatic accelerometer featuring suspension and force rebalance systems, discussing performance, applications and accuracy acceleration measurement
ELECTROSTATIC INSTRUMENT↗
(abstract) A Miniature, High-Sensitivity, Electron-Tunneling Accelerometer
A prototype low-noise accelerometer has been fabricated with an electron-tunneling transducer. By measuring the tunneling current between an electrode on the proof mass and a feedback-controlled monitor electrode, very small accelerations can be detected with high responsivity. This particular prototype (10x10x1.5 mm) was designed for underwater acoustic measurement from a few hertz to 1 kHz. The measured responsivity below the fundamental device resonance at 100 Hz is roughly 1500 volts per m/s(sup 2) with a measured noise spectral density of 10(sup -6) m/s(sup 2) per root hertz or less between 30 and 300 Hz. The noise floor is controlled primarily by 1/f noise in the tunneling current although the noise floor reaches the theoretical molecular-agitation limit at 100 hertz. The responsivity and directivity of the device were measured in a standard gradient-hydrophone calibrator; the noise floor was determined in a vacuum-ionization chamber assembled from commercial off-the-shelf components; and the detailed dynamics of the proof-mass motion were examined using a heterodyne laser interferometer that was scanned across the surface and synchronously detected with respect to the excitation.
accelerometer electron tunneling acoustic measurem↗
A Miniature High-Sensitivity Braodband Accelerometer Based on Electron Tunneling Transducers
This paper describes the successful fabrication and demonstration of a new dual-element micromachined silicon tunnel accelerometer that extends the operational bandwidth beyond the resonant frequency of the proof mass.
microsensors miniature accelerometers↗
A New Force Balanced Accelerometer Using Tunneling Tip Position Sensing
In this paper, we report the initial development of a single-axis bulk micromachined accelerometer. The device employs an electron tunneling tip as a position detector in a force feedback control system. Control electrodes are placed above and below the proof mass and act as electrostatic force plates. Using the force plates, the position of the proof mass relative to the tunneling tip can be controlled.
accelerometers sensors position detectors↗