Communications: electrical – Land vehicle alarms or indicators – Of relative distance from an obstacle
Patent
1993-06-17
1996-12-03
Peng, John K.
Communications: electrical
Land vehicle alarms or indicators
Of relative distance from an obstacle
340903, 340943, 340436, 280734, 180167, 180169, 367 93, 367 94, 338114, 338 13, 338 15, 338 18, B60Q 100
Patent
active
055812325
ABSTRACT:
An obstacle detection apparatus includes a rubber-like elastic body interspersed with electroconductive particles, and means for applying a voltage to the rubber-like elastic body to obtain an ultrasonic wave reception signal from a change in electrical resistance of the elastic body. An ultrasonic wave transmission apparatus is mounted on a support member for transmitting an ultrasonic wave outward. The rubber-like elastic body interspersed with electroconductive particles is provided along an outer periphery of the support member, and a voltage is applied to the rubber-like elastic body to obtain an ultrasonic wave reception signal from a change in electrical resistance of the elastic body as a result of receiving the ultrasonic wave reflected from an obstacle.
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Ito Shigeru
Tanaka Masashi
Tanaka Takashi
Taniguchi Yoichi
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Peng John K.
Pope Daryl C.
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