| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sensor bearing with ground capable of preventing malfunction or breakage of an electronic circuit of the sensor bearing even in a severe electromagnetic environment having many external noises, and simultaneously preventing unnecessary radiation from a built-in circuit to the outside or superimposition of a noise on external wiring, and a method capable of connecting simply a ground pattern of a built-in circuit board in the sensor bearing to a sensor casing in addition to realize the sensor bearing with ground. <P>SOLUTION: This sensor bearing including at least one or more sensors for measuring physical quantities such as a temperature, rotational speed, a rotation angle or vibration of a bearing part, and an electronic circuit 31 attached thereto, wherein a conductive casing is used as the casing 21 of a sensor part, has a constitution wherein a frame ground circuit 40 equipped with a noise removing element 41 is provided on a board for the electronic circuit 31, and a power source/signal ground 32c of the electronic circuit 31 and a power source 32a are connected electrically to the casing 21 of the sensor part respectively through the frame ground circuit 40. <P>COPYRIGHT: (C)2008,JPO&INPIT |
