MAGNETIC SENSOR
PROBLEM TO BE SOLVED: To shorten the length of a coil and to increase a magnetic flux which passes an MI element even when the number of turns is reduced. SOLUTION: A magnetic impedance effect element 1 is provided. A coil 2 which applies a bias magnetic field to the magnetic impedance effect elemen...
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To shorten the length of a coil and to increase a magnetic flux which passes an MI element even when the number of turns is reduced. SOLUTION: A magnetic impedance effect element 1 is provided. A coil 2 which applies a bias magnetic field to the magnetic impedance effect element 1 is provided. A magnetic member 3 is provided. The magnetic impedance effect element 1 is arranged inside the coil 2. The magnetic member 3 is arranged near the outside of the coil 2 along the axial direction of the coil 2, Thereby, even when the length of the coil is made nearly identical to the length of the magnetic impedance effect element, a magnetic flux which passes the magnetic impedance effect element can be increased. |
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