Ultrasonic vehicle rangefinder

Details Ultrasonic vehicle rangefinder Ultrasonic vehicle rangefinder

1984-10-03

1987-06-30

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

367 99, 367107, 367112, 73 1DV, H04B 1700, G01S 966

Patent

active

046775951

ABSTRACT:
An ultrasonic vehicle rangefinder having a detecting system for discriminating whether trouble is in transmission or reception side is shown. The discrimination is established by detection of an attenuation vibration at a transmission microphone.

REFERENCES:
patent: 3427866 (1969-02-01), Weighart

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