| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic sensor capable of easily and accurately detecting the distance and angle to an obstacle. SOLUTION: The ultrasonic sensor 100 includes: a transmission sensor 110 for transmitting ultrasonic waves; and a plurality of reception sensors 120, 130, 140 for receiving ultrasonic waves transmitted from the transmission sensor 110. In the ultrasonic sensor 100, the plurality of reception sensors 120, 130, 140 are arranged at a half-wavelength interval of ultrasonic waves transmitted from the transmission sensor 110. COPYRIGHT: (C)2009,JPO&INPIT
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