| 摘要 |
PROBLEM TO BE SOLVED: To enable a huge variety of inspection and measurement to be carried out by separating a magnetic impedance effect element portion from the other portion in a magnetic impedance effect sensor and by selecting the magnetic impedance effect element portion. SOLUTION: The magnetic impedance effect sensor comprises; the magnetic impedance effect element 1; an exciting current generating circuit 2 for energizing the magnetic impedance effect element; and a detecting circuit for carrying out a detection 3 of an output of the magnetic impedance effect element in which exciting current is modulated by signal information applied to the magnetic impedance effect element, and carrying out an amplification 4 of detection signal information in order to detect it. A negative feedback coil 6 and a bias magnetic field coil 7 are attached to the magnetic impedance effect element. The exciting current generating circuit and the detecting circuit are mounted on a first substrate, and the magnetic impedance effect element, the negative feedback coil and the bias magnetic field coil are mounted on a second substrate. The first substrate is connected to the second substrate detachably. COPYRIGHT: (C)2007,JPO&INPIT
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