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Passive magnetic field sensors having magnetostrictive and piezoelectric materials
Passive magnetic field sensors having magnetostrictive and piezoelectric materials
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机译:具有磁致伸缩和压电材料的无源磁场传感器
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摘要
Passive solid-state magnetic sensors comprise a magnetostrictive material in contact with a piezoelectric material. The magnetostrictive material strains under the influence of an external magnetic field and imparts stress to the piezoelectric material to produce a detectable voltage signal indicative of the external field. Sensors have applications in rotor speed detection, electrical current measurements, magnetic imaging, magnetic field detection, read heads, and MRAM, for example.
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