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  • Exploring New Directions In Multi-Modal Spatial Data Access
    The FuSe Map System is composed of several elements that include a magnetic touch board (composed of a grid of solenoids and H-bridge circuits), relays, a micro- controller, a single 12 & 5 volt power supply and a PC database.
  • Electrically-Controlled Demand-Thrust Rockets for Satellite Guidance
    A typical power supply for this application would comprise a 12 - volt nickel-cadmiiumii battery weighing 0.75 pound and a solar cell recharge system which would weigh as much as 4 pounds. The magnetic amplifier would be of the 2- or 3-stage transistor type weighing 0.5 pound and furnishing 2 watts to the solenoid coil controlled by an input signal of 50 micro- amps.
    For a solenoid with an inner diameter of 5 cm and an outer diameter of 12 cm, using 14 gauge wire, this translates into about 110 W of power required (4 Amps at 28 Volts ); the temperature change of the solenoid due... ...indenter and load train except for the solenoid yoke are made of non- magnetic 303 stainless steel.
  • Over the makeshift construction of eye magnet
    c) By the Schumanns marriages, I £ iesenmagneten (kind G.M. 3n) operated with 220 volts Wachselstrom according to leaflet 10--12 cms, measured on dam Schumannsahen t ~... ...11 em ~ The together. the eye magnet assembled to our simple... the AbschluBpl ~ tte of the solenoid or the winding projects out.
  • Aerospace Engineering on the Back of an Envelope
    ...a 10% duty cycle and NI ¼ 9,080 ampere- turns as recommended by Magnetic Sensor Systems . Voltage ¼ 24.2 volts ; or two 12 volt batteries ...for the maximum force and maximum energy (or delivered work) for our model solenoid given the solenoid/plunger...
  • Developments in chlorine detection in concrete using NMR
    ...using this equation a ratio of SNR values is computed where it is assumed that every parameter remains the same except for Bo and coil diameter), B1 = magnitude of the transverse magnetic field, i = unit current... ...temperature, Vnoise = noise in volt , and Peck et al. 12 derived the relationship of the SNR per unit volume for a solenoid shaped coil taking into account conductive and dielectric losses: .
  • Alternative poloidal field configurations for ITER
    Segmentation of the lTER Central Solenoid , Design Study by the United States Home Team, December 1996 ITERDetailed Design Report, 12 November 1996 J. A. Crotinger, et al., “Corsica: A comprehensive simu- lation of toroidal magnetic fusion devices�?, LLNL Re... ...Ejima, et al., “ Volt -second analysis and consumption...
  • Noise in Traveling-Wave Tubes
    To conclude a discussion of the optics of the tube; the magnetic field was produced by a solenoid 12 inches in diameter and 36 inches long giving a field uniform within 2 per cent over a distance of 18 inches on the... ...any attention was paid to the noise factor worked at approximately 1,600 volts , had helices 3...
  • Strain rate behavior of magnetorheological materials
    The application of an electromagnetic field requires a solenoid coil, which was made of 405 turns of 20 gauge solid copper wire on a radius of 0.6785 inches and driven by 12 volt battery at one ampere direct current to induce... ...did in fact produce a 0.01 Tesla electromagnetic field at the center of the magnetic field.
  • Determination of the Planck constant using a watt balance with a superconducting magnet system at the National Institute of Standards and Technology
    ...Burroughs C J, Harvey T E and Christian L A 1997 Stable 1 volt programmable voltage standard... ...R F 2000 Comparison of quantum Hall effect resistance standards of the NIST and the BIPM Metrologia 37 173–6 [ 12 ] Haddad D, Waltrip B... ...T 1972 A noncontacting magnetic pickup probe for measuring... ...pitch of a precision solenoid IEEE Trans. Instrum. Meas.
  • Electron Beam Focusing with Periodic Permanent Magnet Fields
    ...of current focused to the collector with a beam voltage of 1,800 volts the rf gain... This corresponds closely to operation in a uniform solenoid . DYNAMICS The equations of motion for the electron beam in the periodic magnetic field of Fig. 12 are derived with the following assumptions.
  • "Space Television"
    12 . The television system will operate from a voltage source of 24-32 volts direct current (VDC), negative... Voltage transients (spikes) on the input power line developed by magnetic fields as in solenoid and armature type relays with voltage levels as high as 80 volts for a period of 20 milliseconds.