Ultrasonic rangefinder

Details Ultrasonic rangefinder Ultrasonic rangefinder

1985-05-28

1988-04-26

Kyle, Deborah L.

Acoustics

Echo system

367 99, 367140, 181144, 181148, 181151, 181152, 181139, 181160, 181177, G01S 1500, H05K 500, G10K 1300, H04R 700

Patent

active

047398604

ABSTRACT:
An ultrasonic rangefinder capable of detecting a distance between a vehicle and an object with high accuracy is shown. The measurements for microphones for transmitting and receiving ultrasonic waves are chosen so that detour waves are restricted.

REFERENCES:
patent: 2190466 (1940-02-01), Bennett
patent: 2580439 (1952-01-01), Koch
patent: 2611445 (1952-09-01), Meeker et al.
patent: 3234501 (1966-01-01), Sicuranza
patent: 3427866 (1969-01-01), Weighart
patent: 4463049 (1984-07-01), Krache

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