Transducer mounting and rotating system for calibrating sonars in a sea well

Author

Doherty, Kenneth W. ; Hammar, Terence R. ; Foote, Kenneth G.

Author_Institution

Woods Hole Oceanogr. Instn., MA, USA

Volume

3

fYear

2002

fDate

29-31 Oct. 2002

Firstpage

1407

Abstract

A transducer mounting and rotating system for use in calibrating sonars in a sea well beneath a pier at the Woods Hole Oceanographic Institution is described. The transducer is attached to a plate fitted on the end of a shaft that is supported by a sleeve bearing at the lower end of a 6-m-long trussed steel tower. A rotary table for all-weather use with ordinary television antennas has been adapted for precision use, and attached to the surface end of the shaft. Rotation is controlled by software, with user-defined parameters, from a personal computer (PC) platform. The accuracy of the rotation is ±0.1 deg. Initial calibration trials of the transducer mounting and rotating system itself are described.

Keywords

calibration; oceanographic equipment; sonar; transducers; 6 m; PC platform; WHOI; Woods Hole Oceanographic Institution; all-weather use; rotary table; rotating system; rotation control; sea well; sleeve bearing; software; sonar calibration; television antennas; transducer mounting system; trussed steel tower; Adaptive arrays; Calibration; Microcomputers; Poles and towers; Sea surface; Shafts; Sonar; Steel; TV; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '02 MTS/IEEE

Print_ISBN

0-7803-7534-3

Type

conf

DOI

10.1109/OCEANS.2002.1191843

Filename

1191843