Sensor for detecting changes in magnetic fields

Title: Sensor for detecting changes in magnetic fields

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Abstract

A sensor is described for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device that comprises a pair of bifilar wires disposed circumferentially, one inside and one outside the equilibrium-field coil. Each is shorted at one end. The difference between the voltages detected at the other ends of the bifilar wires provides a measure of changing flux in the equilibrium-field coil. This difference can be used to detect faults in the coil in time to take action to protect the coil.

Inventors:: Praeg, W.F.

Issue Date:: 1980-02-26

OSTI Identifier:: 7072533

Assignee:: Dept. of Energy TIC; ERA-06-004402; EDB-81-003196

DOE Contract Number:: W-31-109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MAGNET COILS; SAFETY; TOKAMAK TYPE REACTORS; FAILURES; MAGNETIC PROBES; WIRES; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; PROBES; THERMONUCLEAR REACTORS; 700202* - Fusion Power Plant Technology- Magnet Coils & Fields

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                    Praeg, W.F. Sensor for detecting changes in magnetic fields.  United States: N. p., 1980. 
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                    Praeg, W.F. Sensor for detecting changes in magnetic fields.  United States.

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                    Praeg, W.F. Tue .  
        "Sensor for detecting changes in magnetic fields".  United States.

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@article{osti_7072533,

  title        = {Sensor for detecting changes in magnetic fields},

  author       = {Praeg, W.F.},

  abstractNote = {A sensor is described for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device that comprises a pair of bifilar wires disposed circumferentially, one inside and one outside the equilibrium-field coil. Each is shorted at one end. The difference between the voltages detected at the other ends of the bifilar wires provides a measure of changing flux in the equilibrium-field coil. This difference can be used to detect faults in the coil in time to take action to protect the coil.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1980},

  month        = {2}

}

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