| 摘要 |
PROBLEM TO BE SOLVED: To provide a displacement sensor capable of being miniaturized and improving environmental resistance to dust and oil or the like. SOLUTION: In this displacement sensor, an excited coil 9 and a movable body K moving in accordance with a displaced amount of a detection target object are provided on a sensor main body 4, an exciting coil 6 is provided on the movable body K, and an induced current is generated in the excited coil 9 by feeding an alternating current to the exciting coil 6 for detecting a change of the induced current of the excited coil 9 due to movement of the exciting coil 6. The exciting coil 6 is a printed coil with a plurality of coil patterns 15 formed in a predetermined pitch arrangement on a substrate main body 7A and adjacent coil patterns 15 connected to each other. The excited coil 9 is a printed coil with a plurality of coil patterns 15 formed in a predetermined pitch arrangement on a substrate main body 10A and adjacent coil patterns 15 connected to each other.
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