Permeability Measurement Performance of PHR Sensor According to Direction of Driving Current
JOURNAL OF THE KOREAN MAGNETICS SOCIETY(2023)
摘要
In order to analyze the permeability measurement performance of the PHR sensor, Type A and Type B sensors with different driving current directions were fabricated. In Type A and B sensors, the magnetic field dependence of the PHR signal V and the signal by self-field V was measured, and these results were well agreed with the calculated results by single domain model. In particular, V was reflected the magnetic sensitivity of Vf, and increased as much as AV by the NiFe disk array specimen placed on the sensor. The permeability measurement performance of Type A and B sensors obtained from AV were high resolution of Ap= 0.45 and 0.75, respectively.
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关键词
phr sensor,permeability measurement performance,driving current
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