Ellipsoidal mirror reflectometer including means for averaging the radiation reflected from the sample Patent
Ellipsoidal mirror reflector for measuring reflectance
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.
Ellipsoidal mirror reflector for measuring reflectance
Polynomial expressions for planetary equators and orbit elements in relationship to earth coordinate system
Low cost entry probes and orbiter missions for exploration of planet Venus
Photographic method for measuring viscoelastic strain in solid propellants and other materials
Electromagnetic energy detection by thermal sensor with vibrating electrode
Development of method for measuring electron density gradients of plasma sheath around space vehicle during atmospheric entry
Automatic estimation of signal to noise ratio and other parameters in signal communication systems
Improved microwave transmission by adding rapidly evaporating liquid droplets to plasma sheath to remove free electrons
Tensile, fatigue, and creep rupture properties of extruded nickel-based aluminum, titanium carbide, and beryllium oxide alloys and aluminum-based silicon, copper, and iron alloys
Measurements of electronic free paths in argon discharge using interaction between plasma electrons and slow wave on helix
Design and characteristics of time of flight mass spectrometer to measure or analyze gases at low pressures and time of flight of single gas molecule
Development of method for synchronizing clocks at several ground stations based on signals received from spacecraft or satellites
Development of systems for automatically and continually suppressing or attenuating bending motion in elastic bodies
System for maintaining motor at predetermined speed using digital pulses
Input radio frequency circuit for switching type absolute temperature measuring radiometer for noise sources
One shot multivibrator circuit for producing long duration output pulses
Digital magnetic core memory with sensing amplifier circuits
Longitudinalfilm gate and lock mechanism for securing film in motion picture cameras under vibration and high acceleration loads