Wideband, derivative-matched, continuous aperture acoustic trans

Details Wideband, derivative-matched, continuous aperture acoustic trans Wideband, derivative-matched, continuous aperture acoustic trans

1993-05-27

1994-07-05

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367119, 367124, 367153, 367157, 310334, 310337, G01S 1500, H04R 1700

Patent

active

053273974

ABSTRACT:
A wideband, derivative-matched, continuous aperture acoustic transducer includes a first sensor area having a predetermined spatial shading and a second sensor area having a spatial shading which is the spatial derivative of the spatial shading of the first area; the first and second spatial shaded areas are superimposed and co-extensive along the sensing axis.

REFERENCES:
patent: 4166999 (1979-09-01), Brady, III
patent: 4167753 (1979-09-01), Lynk
patent: 4460841 (1984-07-01), Smith et al.
patent: 5237542 (1993-08-01), Burke et al.

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