Superconducting magnet facility for plasma physics research.
Split pair of superconducting magnetic field coils of zirconium alloy wire for plasma physics research
PLASMA PHYSICS↗
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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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Improved tool easily removes brazed tube connectors
Portable, compact tool quickly and cleanly removes brazed connectors from system tubes. The tool uses an induction coil to melt the braze and a compression spring to automatically separate the connection. An inert gas is force-fed about the heated area to prevent oxidation of the tube.
Schoppman, R. A.↗
Electrodeless discharge lamp is easily started, has high stability
Electrodeless discharge borosilicate glass lamp is used in various high-resolution optical systems. It is partially charged with krypton, contains small amounts of rubidium, and is enclosed in a hermetically sealed envelope that maintains the lamp at an optimum temperature during discharge. The lamp is quickly started by its excitation coil.
Bell, W. E.↗
Sheet metal strip unrolls to form circular boom
Preformed metal strip, coiled flat on a storage drum, unrolls to form a cylindrical boom. Tabs and slots on opposite sides of the strip interlock to form a continuous circular cross section. This retractable boom can be used as a spacecraft antenna, gravity gradient, or positioning device.
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Noncontacting transducer measures shaft torque
Transducer for measuring the output torque of a rotating shaft uses a magnetically permeable sleeve fitted over a section of the shaft which deflects axially in direct proportion to the output torque. A corresponding change in reluctance occurs in pickup coils mounted in close proximity to the sleeve. This change is measured by attached conventional circuitry.
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Mounting improves heat-sink contact with beryllia washer
To conduct heat away from electrical components that must be electrically insulated from a metal heat sink, a metal washer and a coil spring are placed between one end of the electrical component and the beryllia washer mounted on the heat sink. The thermal paths are formed by the component lead and base, the metal and beryllia washers, and the compressed spring.
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Gas-injection valve operates at high speed
Fast acting gas valve is used for injecting a short pulse of gas into a vacuum chamber during plasma acceleration experiments. It contains a lightweight closure disk that is forced away from the valve seat when an electromagnetic coil is momentarily energized and immediately rebounds from a stop back onto the seat.
Hoh, F. C.↗
Metal tube can be folded for compact stowage, is self-erecting
Metal tube configuration reduces the section modulus to that of a thin plate, thus permitting the section to be bent into a coil for stowage in limited space without destructive yielding of the material. It is readily released to serve as a rigid fluid transportation conduit or structural member.
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Solenoid magnetic fields calculated from superposed semi-infinite solenoids
Calculation of a thick solenoid coils magnetic field components is made by a superposition of the fields produced by four solenoids of infinite length and zero inner radius. The field produced by this semi-infinite solenoid is dependent on only two variables, the radial and axial field point coordinates.
Brown, G. V.↗
Electronic circuit provides accurate sensing and control of dc voltage
Electronic circuit used relay coil to sense and control dc voltage. The control relay is driven by a switching transistor that is biased to cutoff for all input up to slightly less than the threshold level.
Loftus, W. D.↗
The tungsten lamp as a secondary standard for total radiant flux
Coiled tungsten-filament quartz-iodine lamp for use as secondary standard in measurement of total radiant flux
TUNGSTEN↗
New concepts for high energy rate forming system Summary report
High energy rate forming - investigation of high pressure waves, acoustic pressure pulse, pressure transducers, coil design, and storage system
TRANSDUCER↗
Optimization of adiabatic magnetic mirror fields for controlled fusion research
Design of magnetic mirror machines for controlled fusion research apparatus, and optimization of magnetic field coils by adiabatic confinement of largest number of particles for given cost
OPTIMIZATION↗
Superconducting magnet facility for plasma physics research.
Superconducting magnet with coils in variable- spacing horizontal-axis split pair configuration for plasma physics studies
SUPERCONDUCTING MAGNET↗
Stabilized Nb-Zr strip and its use in large magnets.
Nb-Zr strip superconductor for stabilization of critical current anisotropy and coil degradation in magnets
NIOBIUM↗
Residual magnetism holds solenoid armature in desired position
Holding solenoid uses residual magnetism to hold its armature in a desired position after excitation current is removed from the coil. Although no electrical power or mechanical devices are used, the solenoid has a low tolerance to armature displacement from the equilibrium position.
Crawford, R. P.↗
High-energy-rate magnetohydraulic metal forming system
In the magnetohydraulic metal forming system, a sonic shock wave is generated in a liquid medium by a coil energized by an electrical discharge. These waves transfer energy from a metal diaphragm, actuated by a pulsed magnetic field, to a metal workpiece. In the development a study was made of the pressure pulse phenomenon in a liquid medium.
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System precisely controls oscillation of vibrating mass
System precisely controls the sinusoidal amplitude of a vibrating mechanical mass. Using two sets of coils, the system regulates the drive signal amplitude at the precise level to maintain the mechanical mass when it reaches the desired vibration amplitude.
Hancock, D. J.↗