SEARCH · Engineering Papers
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.
Data reduction of lunar photography and infrared measurements
Plastic foam generator for space vehicle instrument payload package flotation in water landing
Book on space probes and planetary exploration emphasizing space vehicle design, instrumentation, American missions and support systems
Mariner spacecraft design, discussing space flight operations, deep space instrumentation, launch vehicle and spacecraft systems
Special tool seals electrical conductors connecting instrumentation within space vehicle cryogenic fuel tanks and oxidizer tanks. An inner sleeve of fluorinated ethylene-propylene and an outer sleeve of tetrafluoroethylene enclose a bundle of conductors and are heated with the tool to form a tight seal of the bundle and each individual wire.
Strapdown inertial reference system with single degree of freedom instrumentation for space vehicles
Cryogenic technology research dealing with fluid mechanics, propellant storage, and instrumentation in support of space vehicle programs
Apollo Applications Program - objectives, experiments, instrumentation, funding, and space vehicles
Space electrical power requirements for future space vehicles and communications instrumentation
Space vehicle guidance and control systems and components and instrumentation systems
The Langley Research Center is in the process of obtaining emissivity measuring apparatus. This apparatus will be used to measure the solar absorptance and low-temperature emittance of space-vehicle materials. Two types of instrumentation will be used. One type will be the total hemispherical emissivity apparatus being constructed at this Center. The other will be double-beam photoelectric ratio-recording spectrophotometer apparatus which is being purchased.
Checkout functions for onboard testing of Saturn instrument unit and S-IVB stages, and implementation guidelines for incorporation into space vehicle system
Critical Data Recorder /CDR/, small autonomous instrumentation package to be carried aboard space vehicle and furnish data on series of maneuvers
Spacecraft structural response, blast overpressure data, and effectiveness of flight instruments for blast effect measurements
Trajectory and performance analysis instrument unit and payload envelope for Saturn IB space vehicle program
Aerobee rocket instruments for low energy cosmic ray heavy nuclei data in flight - recoverable payload
Current estimates indicate that the bulk of interplanetary gas consists of protons with energies between 0 and 20 kev and concentrations of 1 to 105 particles/cu cm. Methods and instrumentation for measuring the energy and density distribution of such a gas are considered from the standpoint of suitability for space vehicle payloads. It is concluded that electrostatic analysis of the energy distribution can provide sufficient information in initial experiments. Both magnetic and electrostatic analyzers should eventually be used. Several instruments designed and constructed at the Ames Research Center for space plasma measurements, and the methods of calibration and data reduction are described. In particular, the instrument designed for operation on solar cell power has the following characteristics: weight, 1.1 pounds; size, 2 by 3 by 4 inches; and power consumption, 145 mw. The instrument is designed to yield information on the concentration, energy distribution, and the anisotropy of ion trajectories in the 0.2 to 20 kev range.
Direct measurements of the space density of cosmic dust particles in the vicinity of the earth have been made from rockets, satellites, and space probes. The largest data samples have been obtained from crystal transducer sensors that detect the impact-impulses occurring from the collision of dust particles on sensitive surfaces of space vehicles. Preliminary results from satellite 1959 Eta show: (1) over 1500 impacts and an area-time product greater than 10(exp 1O) sq cm-sec; and (2) a daily variation in the dust particle density near the earth. The dust particle instrumentation of 1959 Eta and sensor calibration techniques are discussed in this paper. The results of direct measurements from space vehicles prior to 1959 Eta are summarized with respect to 1959 Eta information.