Method to estimate towed array angles

Details Method to estimate towed array angles Method to estimate towed array angles

2011-02-01

2011-02-01

Lobo, Ian J (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With towing

C367S020000, C367S154000

Reexamination Certificate

active

07881156

ABSTRACT:
A towed array is provided with hot-film sensors and anemometer circuitry to calculate the angle of inclination of the towed array in real time during deployment of the towed array in a sea water environment. The hot-film sensors are arranged in pairs along the length of the towed array to increase the sensitivity of the inclination angle determinations and are located flush with an exterior surface of the towed array to minimize interference with the operation of the towed array. The pairs of hot-film sensors determine the local shear stresses on the towed array, and these measurements are converted to inclination angles using an empirically derived look-up table.

REFERENCES:
patent: 4854174 (1989-08-01), Keith
patent: 6111817 (2000-08-01), Teeter
patent: 6341532 (2002-01-01), Xu et al.
patent: 6732579 (2004-05-01), Keith et al.
patent: 7130242 (2006-10-01), Keith et al.

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