| 摘要 |
PURPOSE:To simplify the constitution of a device, to miniaturize and to make it lightweight, by forming a closed magnetic path by joining an upper and a lower cores by interposing a nonmagnetic elastic body. CONSTITUTION:The upper and the lower cores 1a and 1b are joined by interposing the resin 4 of the nonmagnetic elastic body. By applying pressure on the cylindrical plane of the upper core 1a, a gap width (t) formed with the resin 4 changes, and the change of the pressure can be detected by the change quantity of the inductance of a coil wound on a winding window 2. Therefore, it is possible to simplify the constitution of the device and to miniaturize and make it lightweight.
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