Electromagnetic generator for fast current and magnetic field pulses, for example, for use in magnetic metal working
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United States of America Patent
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Nov 4, 1997
Grant Date -
N/A
app pub date -
Jul 29, 1994
filing date -
Aug 7, 1993
priority date (Note) -
Expired
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Abstract
An electromagnetic generator for working electrically conducting objects with current and magnetic field pulses having a high rate of rise as expressed by dI/dt and dB/dt includes primary windings of a pulse transformer that are arranged in pairs so that their primary currents generate a single current pulse on the secondary side of the pulse transformer. The pulse transformer has as secondary coil comprised of a longitudinally slit pipe on which the insulated primary windings are placed. Contact blocks are attached as current outputs next to the longitudinal slit and in the middle of pipe for the connection of an external low-ohmic peak-current loop which encloses a magnetic field concentrator that is made in one or several parts and that can accept one or several metal work pieces.
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