Acoustic Direct Reading Current Meter

Author

Robbins, Richard J. ; Morrison, Geoffrey K.

Author_Institution

Neil Brown Instrum. Syst., Cataumet, MA, USA

fYear

1981

fDate

16-18 Sept. 1981

Firstpage

506

Lastpage

511

Abstract

The acoustic Direct Reading Current Meter measures water currents by detecting the differential travel time of acoustic signals propagated in opposite directions along the same fluid path. The two paths are Parranged to resolve two axes of fluid flow (e.g., ocean currents) relative to the instrument housing. A saturable core magnetometer compass measures the horizontal components of the local magnetic field. Current and compass, along with the temperature data and other optional parameters, are transmitted by cable to a microprocessor-based data terminal. The data is processed by the terminal and is presented in a variety of direct reading formats.

Keywords

acoustic measurement; acoustic signal processing; automatic meter reading; compasses; electric current measurement; flow measurement; magnetometers; microprocessor chips; oceanographic techniques; underwater sound; acoustic direct reading current meter; acoustic signal propagation; compass; fluid flow; instrument housing; microprocessor based data terminal; saturable core magnetometer; water current measurement; Acoustic measurements; Acoustic propagation; Acoustic signal detection; Current measurement; Fluid flow; Magnetic field measurement; Oceans; Sea measurements; Signal resolution; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 81

Conference_Location

Boston, MA

Type

conf

DOI

10.1109/OCEANS.1981.1151666

Filename

1151666