| 摘要 |
An acceleration sensor-attached tire is provided which can detect acceleration in one arbitrary direction, in two or more directions where vectors are linearly independent of each other, or in two or more directions where vectors of the detected acceleration cross each other generated in a tire in a practical velocity range. A sensor unit 100 is embedded inside a tire, and the acceleration in three directions crossing each other and generated in the tire 300 is detected by an acceleration sensor provided in this sensor unit, and the detected acceleration is transmitted. The acceleration sensor is a micro electro mechanical systems (MEMS) type sensor and comprises a semiconductor acceleration sensor.
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