A portable laser instrument for vibration analysis and transducer calibration
Portable laser heterodyne system for broadband measurement of structural vibrations and calibration of electromechanical transducers
Carter, R. R.↗
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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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Interfacial relaxation overstability in a tangential electric field
Dynamic model for charge relaxation effects on electromechanical polarization surface waves of electric field
Melcher, J. R.↗
Advanced technological satellite electro-mechanical despun antenna Final report
Microwave frequency electromechanical despun antenna system for advanced technological satellites
Blaisdell, L.↗
Advanced technological satellite electro-mechanical despun antenna. Appendices Final report
Radio frequency pattern and impedance tests, vibration tests, radiated and power line interference measurements, and thermal energy behavior for electromechanical despun antenna
Blaisdell, L.↗
Use of an electroluminescent display in manual tracking and in a reading task
Performance comparison of electromechanical and electroluminescent displays in closed loop manual tracking task and reading accuracy tests
Foster, J. D.↗
Welding skate with computerized torch angle and welding speed control.
Welding skate with computerized torch angle and speed control maintained without mechanical, electromechanical or photoelectric transducers
Wall, W. A.↗
Electrode problems in central nervous monitoring in performing subjects.
Electrode problems in recording skin responses in freely moving subjects noting implantation, electromechanical and radio signal interference
Adey, W. R.↗
Two devices for analysis of nystagmus
Electromechanical Slope Computer /ESC/ and Electronic Summation Device /ESD/ facilitates rapid analysis of nystagmus records. The ESC reads out the slope and time of each nystagmus wave form. The ESD provides much faster analysis than the ESC. It provides an immediate analog display and digital display of analyzed nystagmus.
Guedry, F. E., Jr.↗
Separation simulator
Separation simulator, consisting of a control panel and an electromechanical simulator unit, simulates electrical separation of space flight vehicle stages. Simulation is accomplished by electrically inserting the simulator between the normal interstage couplings of the vehicle. Actual separation is accomplished by energizing two solenoids.
Phlieger, G. A., Jr.↗
Simplified, reliable circuit sorts binary numbers in order of magnitude
Circuit includes a single-word input/output register and a multiword serial memory which are circulated in synchronism. It puts out data at a rate compatible with relatively slow-speed electromechanical devices.
Anderson, T. O.↗
Stability and dynamics of rotating dielectrophoretic equilibria
Design of dielectrophoretic liquid orientation and expulsion systems for zero gravity environments with maximum electromechanical effects of imposed electric field
Calvert, R. T.↗
Interfacial relaxation overstability in a tangential electric field.
Interfacial charge relaxation overstability in tangential electrical field, discussing electromechanical polarization surface waves propagation and dielectrophoretic orientation of liquids in zero gravity space
Melcher, J. R.↗
Electrohydrodynamics - A review of the role of interfacial shear stresses.
Electrohydrodynamics of fluids having uniform electrical properties, emphasizing shear effects for interfacially confined electromechanical coupling
Melcher, J. R.↗
Two devices for analysis of nystagmus.
Electromechanical slope computer and electronic summation device for measurement of nystagmus and analysis of nystagmus data
DATA PROCESSING↗
Safe/armed explosive squib
Safe/Armed Firing-Type Initiator /SAFTI/ combines the safety features of existing electromechanical safe-arm devices with the weight and size of a standard initiator and the functioning speed of a relay.
Parker, L. C.↗
Electronically controlled motor drive system has ultra-high reliability and long lifetime
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.
Veillette, L. J.↗
Spectral analysis of oscillation instabilities in frequency standards
Phase and frequency fluctuations, inherent in oscillators used as frequency standards, are measured over spectral frequency range of 1 Hz to 5 kHz. Basic measurement system consists of electromechanical phase-locked loop that extracts phase and frequency fluctuations and error multiplier that extends threshold sensitivity.
Lippincott, S.↗
Electronic strain-level counter
Counter for aircraft counts and records number of times the strain at a point in a structural member exceeds each of four preset levels. Counter uses 28 volt dc power supply, metallic resistance strain gage bridge as sensor, integrated and solid state circuits for signal processing, and electromechanical counters for data storage and readout.
Pitts, F. L.↗