Stationary microvariation station with photoelectronic amplification
Geomagnetic field microvariation measurement using photoelectronic amplification
GEOMAGNETIC FIELD↗
SEARCH · Engineering Papers
Results for “PHOTOELECTRIC APPARATUS”
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.
Perspectives of photon count application in the photoelectric tracking systems utilized in astronomy <perspektivy primeneniya scheta fotonov v fotoelektricheskikh sledyashchikh sistemakh ispol'zyuyemykh v astronomii<
Photon count application in photoelectric tracking systems for astronomy
ASTRONOMY↗
Observations of the white light corona from a rocket
White light solar corona observations by rocketborne photographic and photoelectric coronagraphs
CORONAGRAPH↗
Design and applications of optical interferometers in astronomy Final report
Interferometer application to optical instrument testing, double star separation measurements, and photoelectric techniques for stellar diameter measurements
OPTICAL INSTRUMENT↗
High-sensitivity fast-response laser detection systems.
High sensitivity fast-response laser detection system, describing microwave response photoelectric detector with amplification and mixing functions
MICROWAVE CIRCUIT↗
Simple sunfollower assembly.
Sunfollower assembly for maintaining horizon scanner in Sun vertical
PHOTOELECTRIC APPARATUS↗
A photoelectric skylight polarimeter.
Photoelectric skylight perimeter for Stokes parameter measurements in plane polarized light
PHOTOELECTRIC APPARATUS↗
Laser experiments for determining satellite orbits.
Pulsed ruby laser photoelectric receiver experiments determining satellite orbits, supplementing Baker-Nunn camera network
RUBY LASER↗
A Photoelectric Skylight Polarimeter Scientific Report No. 1
Photoelectric polarimeter for measuring skylight polarization characteristics in visible spectrum
VISIBLE SPECTRUM↗
Photoelectric device for recording occultations of stars by the moon
Photoelectric device for recording occultations of stars by moon
PHOTOELECTRIC APPARATUS↗
The effect of the earth's radiation belts on an optical system.
Photoelectric optical imaging system survival in earth radiation belt, noting noise level and total energy absorption
OPTICAL EQUIPMENT↗
UV-sensitive photoemitters.
Far UV transmitting windows, particularly lithium fluoride, and response measurements below 2000 angstroms, noting fabrication on solar blind materials
ULTRAVIOLET PHOTOMETRY↗
Narrow pass band - photoelectric spectrometry of stars of first spectral types <spectro- metrie photoelectrique a bande passante etroite des etoiles des premiers types spec- traux<
Apparatus for narrow pass band photoelectric spectrometry of stars of first spectral type
STELLAR SPECTROPHOTOMETRY↗
Equipment for Thermal-Balance Studies in the Langley Instrument Research Division
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.
Spiers, Robert B., Jr.↗
A new polarimeter for faint astronomical objects.
Photoelectric two-cell polarimeter with rotating achromatic half-wave plane noting wavelength restriction
MEASURING APPARATUS↗
Plane-level gives electrical output.
Photocell-mounted spirit level as two-axis surface level detector with DC output
PHOTOELECTRIC CELL↗
An automated resilience apparatus for polymer studies from -196 to plus 180 deg C.
Automated rebound resilience apparatus for polymer dynamic mechanical properties studies over wide temperature range, using photoelectric device
Robbins, R. F.↗
Recent developments in density, temperature and momentum fluctuation measurement
Attention is drawn to recent advancements in the fluctuating line-reversal temperature measurement, the development of the two-dimensional drag-sensing probe into a three-dimensional drag-sensing probe, and the fluctuating density gradient cross beam Schlieren technique. An experimental apparatus is explained whereby the temperature fluctuation in a pulsating air-fuel ratio Bunsen burner is measured by means of sodium D-line reversal methods with a new photoelectric circuit to obtain both fluctuating and mean temperature data. The three-D drag probe is made possible by a newly invented differential and total magnetic sensing system that separates signals due to three orthogonal movements so that the vectorial momentum fluctuation can be measured. In the case of the Schlieren technique, the effect of anisotropic density gradients with respect to the angle between the polarization plane and the knife edge of a laser Schlieren system is studied.
Battle, T. M.↗