Sensor for detecting changes in magnetic fields

Patent · 01 January 1981

OSTI ID:864074

Praeg, Walter F ^[1]

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1. Palos Park, IL

A sensor for detecting changes in the magnetic field of the equilibrium-field coil of a Tokamak plasma device 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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4305785
• OSTI ID: 864074
• Country of Publication: United States
• Language: English

Related Subjects

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action
bifilar
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circumferentially
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outside
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plasma
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time
tokamak
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