Ultrasonic distance sensor

Details Ultrasonic distance sensor Ultrasonic distance sensor

1983-11-09

1986-04-01

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Signal transducers

181400, 367151, G01S 752

Patent

active

045802513

ABSTRACT:
A single transducer ultrasonic distance sensor is disclosed which provides for range sensing down to zero distance from the sensor housing envelope with an electroacoustic transducer subject to unavoidable ringing following emission of a burst of acoustic energy. The housing is configured and the transducer mounted therein so that an acoustic path at least half as great as the distance travelled by an acoustic signal during the transducer ringing interval is provided within the housing envelope.

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