ROTATION SENSOR

摘要

A rotation sensor that has good sealing performance preventing entry of water from the outside, in which a sensor component and a circuit portion in the periphery of the sensor component are not damaged by external force and by internal thermal distortion due to internal heat generation and a change in the temperature of the outside environment, and that can be produced at low cost. The rotation sensor (A) is fixed to a sensor fixation member (7) mounted on a bearing for a wheel. A sensor unit (B) is constructed from a sensor element, a cable (10), and a substrate (11). The sensor unit (B) is fixed to the sensor fixation member (7) by using the substrate (11). Around the sensor unit (B) is provided a molding section (8) where a molding material is molded and bonded to the substrate (11). The substrate (11) has a metal pattern (13) made as a metal coating formed on that portion of the substrate surface which is in the periphery of an electricity conduction pattern (3), and the molding material is bonded to the metal pattern (13).