Ultrasonic sensor and method of using such a sensor

Details Ultrasonic sensor and method of using such a sensor Ultrasonic sensor and method of using such a sensor

1996-03-25

1997-12-30

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

G01S 1500

Patent

active

057038341

ABSTRACT:
A ultrasonic sensor for detecting the location of objects disposed in a substantially gaseous environment includes a plurality of nodes arranged into a uniform network. A plurality of circular transducers are provided such that each transducer is disposed at a node. The center of adjacent transducers are spaced at a distance no greater than the wavelength of acoustic waves emitted by the transducers. A method of detecting the location of objects disposed in a substantially gaseous environment is also disclosed.

REFERENCES:
patent: 4381144 (1983-04-01), Breslau
patent: 5165064 (1992-11-01), Mattaboni
patent: 5426619 (1995-06-01), Madden et al.
Ocean Technologies And opportunities In The Pacific For The 90's, Honolulu, Oct. 1-3, 1991, "Design considerations of Uniform Circular Projector Arrays for High Power Applications", Joseph P M et al., pp. 1562-1564.

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