Propagation sampled acoustic line array

Details Propagation sampled acoustic line array Propagation sampled acoustic line array

1978-02-02

1979-11-27

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With beam steering, scanning, or focussing

367129, 367149, 367154, G01S 380

Patent

active

041763394

ABSTRACT:
An acoustic line array which includes a co-axial cable having a center coctor surrounded by a flexible material of low-electrical conductivity. The flexible material is surrounded by a conducting material protected by an external shield. The cable has characteristic impedance which is sensitive to pressure variations in the medium due to a traveling acoustic pressure wave from an acoustic source. Variations in the impedance of the array are used to detect the acoustic source. Alternatively, the line array makes use of discrete sensors placed at suitable intervals along the array. This type of acoustic array eliminates the use of a plurality of wires carrying the electrical signals from the transducer to the storage equipment and elaborate multiplexing techniques.

REFERENCES:
patent: 3668625 (1972-06-01), Wolf et al.
patent: 3905008 (1975-09-01), Hagemann
patent: 3921125 (1975-11-01), Miller et al.
patent: 3939466 (1976-02-01), Horwath
patent: 4011540 (1977-03-01), Farr

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