Active feedback system for suppression of alternating magnetic fields
作者： Curt Dunnam
DOI:
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摘要: The present invention features a magnetic field compensation system for suppressing alternating or time-varying fields in large volume of space. A sensor detects within predetermined range frequencies and generates signal. coil pair Helmholtz drive coils is positioned into containing the sensor. preamplifier connected to amplifying signal processor receiving providing phase correction gain. has both an averaging absolute peak detector determining average excursions. power amplifier processed applying it coils.
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