Ultrasonic measuring system

Details Ultrasonic measuring system Ultrasonic measuring system

1994-01-28

1996-02-13

Ramirez, Ellis B.

Boots, shoes, and leggings

G06F 1700

Patent

active

054916488

ABSTRACT:
An ultrasonic measuring system detecting state informations of a vehicle other than a vehicle speed. An ultrasonic transducer TR1 directly detects the vehicle speed. A second ultrasonic transducer and a third ultrasonic transducer are disposed respectively in front of and at a back of a rotational center of the vehicle and separated from each other at a predetermined distance. They respectively transmit ultrasonic waves at right angles to the running direction of the vehicle and respectively at second and third predefined down-angles relative to the road. A two-dimensional speed of the vehicle can be measured on the basis of the speeds obtained by the transducers TR2 and TR3.

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patent: 4933864 (1990-06-01), Evans, Jr. et al.
patent: 5075864 (1991-12-01), Sakai
patent: 5339259 (1994-08-01), Puma et al.
patent: 5373446 (1994-12-01), Mizukoshi

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