| 摘要 |
PROBLEM TO BE SOLVED: To provide a device which can obtain a stabilized detection result while obtaining good detection sensitivity in simple constitution. SOLUTION: A magnetic type displacement sensor device detects the information about a detected material 3 using a detecting signal outputted from a coil 13 corresponding to the relative-position change between two or more magnetic type displacement sensors 10 and the detected material 3. When connecting each of the coils 13 in two or more sensors 10 with the one commonalized excitation oscillator 21A and exciting each of the coils 13 with the same oscillation frequency and the same phase, the device is constituted so that the mutual interference by the magnetic field between two or more sensors may be prevented favorably.
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