PILOT MANUFACTURING FOR SPACECRAFT
Spacecraft materials - manufacture of bearings, accelerometers and electronic equipment
MANUFACTURING↗
SEARCH · Search NASA
Results for “Accelerometer”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Design for a digitally-rebalanced, closed-loop velocity meter providing a discrete output.
Design for accelerometer providing discrete output signal for data processing applications
ACCELEROMETER↗
Gimballess Inertial Navigation Systems. Semi- Annual Progress Report, 1 Nov. 1964 - 30 Apr. 1965
Accelerometers for sensing angular velocity in gimballess inertial navigation system
INERTIAL NAVIGATION↗
Investigation of the use of penetrometers to determine the capability of dust materials to support bearing loads
Use of accelerometer-equipped spherical penetrometers to determine capability of dust materials to support bearing loads
ACCELEROMETER↗
An introduction to analytic platforms for inertial guidance
Analytic platform inertial navigation system using single axis reference and pendulous integrating gyro accelerometer measuring devices
MEASURING APPARATUS↗
Analytical and experimental investigations of low level acceleration measurement techniques
Construction techniques for accelerometer with low level threshold sensitivity
SENSITIVITY↗
Wind tunnels
Supersonic wind tunnel test data, angle of attack envelope computations, and accelerometer package for reconstructing density profile of unknown atmosphere
ACCELEROMETER↗
Dynamic measurements - Transducer calibration
Michelson interferometer and laser source for measuring oscillatory motion for calibration of miniature accelerometers
ACCELEROMETER↗
Microelectronics for the air-bearing servo loop electronics Phase completion report
Microelectronics for air bearing gyro and accelerometer servo loops
GYROSCOPE FLOTATION↗
Guidance and control engineering.
Guidance and control technology examining inertial guidance systems, Apollo space system, gyros, accelerometers and computers
INERTIAL GUIDANCE↗
Small Inertial Measurement Units - Soures of Error and Limitations on Accuracy
Limits on the precision of small accelerometers for inertial measurement units are enumerated and discussed. Scaling laws and errors which affect the precision are discussed in terms of tradeoffs between size, sensitivity, and cost.
micromachined silicon accelerometers precision sen↗
Giant Magnetoresistive (GMR) Sensor Microelectromechanical System (MEMS) Device for Nondestructive Evaluation (NDE) Health Monitoring Applications for International Space Station (ISS)
This paper discusses the fabrication aspects of an accelerometer device that is based on a sputter deposited, multilayer, and giant magnetoresistive field sensor.
Mission Assurance accelerometer Giant Magnetoresis↗
A METHOD OF DETERMINING THE SOURCE OF ERRORS IN GUIDANCE MEASUREMENTS AND THE RESULTANT ERRORS IN EARTH-FIXED COMPONENTS
Analysis of guidance system errors resulting from initial misalignments of both the accelerometer and stabilizing gyros, the drift of the stabilized element during flight and errors in measuring the vehicle motions
GUIDANCE (MOTION)↗
An Adaptive System for Load Relief and Accurate Control of Launch Vehicles
An adaptive load relief control system for a SATURN type vehicle which significantly reduces aerodynamically induced structural loads without incurring excessive velocity dispersions has been studied. This control system utilizes pendulous accelerometers to measure the angle between the total vehicle acceleration vector and the vehicle body. This measurement is used to fly the vehicle along the nominal trajectory to minimize velocity dispersions. However, if unusually high values of wind velocity are encountered, the system will cause the vehicle to turn into the wind to reduce the lateral structural loads. Results of an anal6g computer study show that the adaptive system can reduce aerodynam3cally induced peak structural loads as much as 50 percent under those encountered using conventional control techniques. relief is used only when required, velocity dispersions are held to a minimum.
ADAPTIVE CONTROL SYSTEM↗
Propellant vibrations in rocket tanks and their effect upon overall stability <treibstoffschwingungen in raketenbehaeltern und ihr einfluss auf die gesamtstabilitaet<.
Effect of propellant sloshing upon stability of rocket having simple coordinate system with accelerometer
LIQUID SLOSHING↗
Crystal measures short-term, large-magnitude forces
By using the magnitude of piezoelectric crystal response to distortion and compression, this device measures transient accelerations and their rate of change. The invention could be used in a servo control system by supplementing the accelerometer and taking over its function when its range was exceeded.
Pfeiffer, C. G.↗
Signal conditioning circuit for an oscilloscope display of bending
Oscilloscope display of space vehicle bending motions using switching circuit for sampling accelerometer outputs from vehicle
OSCILLOSCOPE↗
An optical-inertial space navigation system.
Optical-inertial space navigation system combining gyros, image tube tracker, electrostatic accelerometer and advanced computer
SPACE NAVIGATION↗