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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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Direct drive electromechanical system is composed of brushless dc torque motor, offset-tooth magnetic sensor that derives position and rate information directly from output shaft, and rotary power transformer that transfers electrical power from external source to proper load. System has high servo loop stiffness and minimum power consumption.
Calculation of motion drive signals for piloted flight simulators
Optimum design considerations of traction drive for lunar roving vehicle
Motion drive signals for piloted flight simulators
Diagnostic, testing, and maintenance procedures for hydraulic drive systems for large steerable antennas
Nuclear reactor control rod assembly with improved driving mechanism
Simulator servo drive system dynamic requirements for single-axis manual control task using pilot models and computer
Optimal traction drive system design for lunar roving vehicle, considering weight, energy consumption, operational flexibility, power supply, motor and power train
Apollo 11 drive-tube core samples from Tranquillity Base, expressing lunar surface environmental processes
Hydraulic drive mechanism for leveling isolation platforms
Antibacklash circuit for hydraulic drive system
Describing device for velocity control of electromechanical drive mechanism of scanning mirror of interferometer
Incremental motion drive system applied to interferometer components
Design, fabrication, and test of research model roller-gear drive consisting of transmission driven by dc motor
Drive system for parabolic tracking antenna with reversible motion and minimal backlash
Automatic power supply circuit design for driving inductive loads and minimizing power consumption including solenoid example
Digital memory system with multiple switch cores for driving each word location