| 摘要 |
Disclosed is a method for achieving miniature fluxgate circuits capable of remotely sensing local dynamic magnetic fields. By synchronizing the excitation currents of the sensor core with the time-varying magnetic signals, the sensitivity can thus be improved, thereby enabling dynamic measurements at high speed. Also disclosed is a magnetic recording head device which uses a fluxgate magnetometer to measure a sequence of magnetic digital data bits, capable of providing dual reading and writing functions at high speeds, whose fabrication is fully compatible with the current printing circuit technologies.
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