RF IMPEDANCE PROBE MEASUREMENTS OF IONOSPHERIC ELECTRON DENSITIES
Ionospheric electron density profiles obtained by the cw propagation technique and by rf impedance probe techniques
IONOSPHERIC ELECTRON DENSITY↗
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Results for “RF”
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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High-pass RF coaxial filter rejects dc and low frequency signals
A low-loss RF filter element for coaxial transmission provides dc isolation and eliminates low frequency signals. The characteristic impedance of the transmission line is not affected, as the design permits direct connection of the filter to the line.
Bailey, J. W.↗
Preliminary observations of rf power transfer to a hydrogen plasma at frequencies near the ion cyclotron frequency.
Ion cyclotron resonance device for heating hydrogen plasma, using continuous rf power source
HYDROGEN PLASMA↗
Specification, rf test console, appendix a part of the final report
Design and fabrication requirements for transmitter-receiver combination - rf test console
EQUIPMENT SPECIFICATIONS↗
Unified s-band rf system compatibility test program
Unified S-band RF system compatibility test for Apollo program
RADIO FREQUENCY↗
Ferroelectric bolometer measures RF absolute power at submillimeter wavelengths
Two ferroelectric bolometer sensing elements measure low rf absolute power at millimeter and submillimeter wavelengths. The sensing elements are mounted in sections of waveguide and connected in series in a standard temperature compensating bridge circuit.
Cohn, M.↗
Mechanical device accurately measures rf phase differences in vhf or uhf ranges
Dual range linear measurement device accurately measures RF phase differences in either VHF or UHF ranges. The device has a capability consisting of a course range extending to 30 cm readable to 1 mm and any fine range portion of 2.5 cm readable to .01 mm.
Hopp, L. A.↗
Experiments on ion-cyclotron-wave generation using an electrostatically-shielded rf coil
Power absorption measurement by rf coil and resulting sinusoidal field distortion in hydrogen plasma
COIL↗
Effect of magnetic beach on rf power absorption in ion cyclotron resonance
Effect of magnetic beach on RF power absorption in ion cyclotron resonance
MAGNETIC FIELD DISTURBANCE↗
Electron temperatures in several RF-generated plasmas.
Electron temperatures in several RF-generated plasmas, using air as medium
GAS DISCHARGE↗
Effect of magnetic beach on RF power absorption in ion cyclotron resonance.
Magnetic beach effect on RF power transfer to ion-cyclotron waves in hydrogen and deuterium plasmas
RADIO ATTENUATION↗
RF propagation and absorption measurements in a magneto-plasma near electron cyclotron resonance.
RF propagation and absorption calorimetric measurements in magnetoplasma near electron cyclotron resonance, noting power conversion
PLASMA ACCELERATOR↗
RF inductor has high Q, is stable at higher temperatures
Encapsulated RF inductor with an insulated coil has a high Q and remains stable for long periods of time at high temperatures. The coil is wound on a core and both are encapsulated in an epoxy resin. Two terminals are soldered to the coil.
Wiler, E. M.↗
Design of a main-bus switching regulator with low RF interference for the radio astronomy Explorer satellite.
Variable ratio DC transformer regulator used in voltage boost configuration of power system in Radio Astronomy Explorer /RAE/ spacecraft, noting RF interference reduction
VOLTAGE REGULATOR↗
Electrocardiograph transmitted by RF and telephone links in emergency situations
Electrocardiograph of an injured human subject is transmitted by RF and telephone links from the ambulance at the emergency scene, to the hospital emergency facilities. This system eliminates delay in the diagnosis of required therapy, thereby enhancing emergency and rescue operations.
Carpenter, L. R.↗
System converts optical phase changes to RF phase changes
System converts phase changes at optical frequencies to equal phase changes at RF. This system operates in conjunction with either a Michelson interferometer or conventional interferometers.
Logue, S. S.↗
RF ion mass spectrometer calibration ion source system Final report, Oct. 1964 - Mar. 1968
Plasma-ion source system for ground calibration of Bennett RF ion mass spectrometer
Source record↗
Analysis of polar cap absorption event 5 RF profiles, active solar regions and associated phenomena, requirements for a proton warning system
Polar cap absorption correlated with RF profiles active solar regions, and associated phenomena
Jonah, F. C.↗