PRECISION AND ACCURACY IN SPACE EXPLORATION
System constraints and environmental factors in design of instrumentation for space exploration
SPACECRAFT INSTRUMENTATION↗
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Results for “accuracy”
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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Multiple port pressure scanner valve features greater accuracy, quicker data
Fast, accurate, multipressure measuring system, which employs a multiple port pressure scanning valve that connects a pressure transducer to many pressures, is described.
Vincent, E. R.↗
A Study of the Navigator's Sighting Accuracy Using a Simulated Vehicle-Mounted Space Sextant and a Description of the Sextant Simulator
Sextant simulator for midcourse guidance of manned spacecraft during interstellar travel
MIDCOURSE GUIDANCE↗
A method employing star backgrounds for improving the accuracy of the location of clouds or objects in space
Star background to reduce position error in photographic geodetic observations
POSITION ERROR↗
A method employing star backgrounds for improving the accuracy of the location of clouds or objects in space.
Simultaneous photographs taken at different ground stations against star backgrounds used to correct measurements of objects moving in upper atmosphere
CLOUD PHOTOGRAPH↗
Accuracies and calibration techniques of turbine-type flowmeters
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Smith, O. L.↗
Thermistor connector assembly increases accuracy of measurements
Isolation of the thermistor from spurious heat transfer for accurately measuring ambient air temperatures is accomplished by a mounting consisting of a transparent plastic film bonded to a U-shaped phenolic board with depositions of aluminum on each face and upper edge, and a variable capacitor for fine tuning.
Source record↗
Evaluation of high accuracy products corporation model pc-202 automatic particle counter
Automatic particle counter for fluid contamination
CONTAMINATION↗
Some practical accuracy considerations of smoke trail wind profile data
Smoke trail photographic measurement of wind velocity profiles
WIND VELOCITY↗
A high accuracy instrumentation system with on- line data processing for static rocket test firing.
On line analog-to-digital data processing system for static rocket test firing
DATA PROCESSING↗
Unambiguous accuracy of an interferometer angle-measuring system.
Two or three collinear antennas to make unambiguous interferometric estimates of direction of arrival of RF energy with plane wavefronts
RADIO FREQUENCY RADIATION↗
Accuracy estimate of approximate computation of eigenfunctions by the galerkin method <otsenka tochnosti priblizhennogo vychisleniya sobstevennogo znacheniya metodom galerkina<
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Petrov, G. I.↗
High-accuracy fm/fm telemetry
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Meyer, J. F.↗
Special mount improves remote transducer accuracy
Transducer-mounting device allows measurement of transient pressure in a hostile environment. The device provides free passage areas and a controlled environment for the measuring instrument.
Layton, J. P.↗
Densitometer system for liquid hydrogen has high accuracy, fast response
Developmental densitometer system for cryogenic liquids uses two balanced ionization chambers containing xenon gas, with X rays as the radiation source. The X rays are heavily filtered with a lead shield to make the energy spectrum much less dependent on the voltage applied to the X ray tube.
Source record↗
Satellite range and tracking accuracy as a function of oscillator stability
Frequency stability requirements for pulsed Doppler MTI radars - master oscillator requirements for coherent radar sets
COHERENT RADAR↗
A study of the accuracy of estimating the orbital elements of a lunar satellite by using range and range-rate measurements
Lunar satellite orbital element estimation using range and range-rate measurement - trajectory analysis
RANGE MEASUREMENT↗
On the accuracy of the gravitational potential as derived from camera observations of artificial satellites Research in space science
Gravitational potential from satellite photography and from determinations of tesseral and zonal harmonic coefficients
TESSERAL HARMONICS↗