Moored Acoustic Travel Time (ATT) Current Meters: Evolution, Performance, and Future Designs.

Abstract

New laboratory measurements and numeric model studies show the present folded-path ATT current meters are stable and sensitive, but are not well suited for mean flow observations in surface gravity waves. Alternate designs which reduce unwanted wake effects are proposed. ATT flowmeter history, principles of acoustic flow sensos, mean flow near cylinders, and the need for linear flow sensors are reviewed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1979
Accession Number
ADA083654

Entities

People

  • James R. Mccullough
  • Wilhelm Graeper

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Detectors
  • Acoustic Waves
  • Acoustics
  • Boundary Layer
  • Detectors
  • Doppler Effect
  • Energy Consumption
  • Flow Visualization
  • Fluid Flow
  • Hydrodynamics
  • Measurement
  • Physics Laboratories
  • Secondary Flow
  • Sonar
  • Steady Flow
  • Three Dimensional
  • Transducers

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Mechanics and Fluid Dynamics.
  • Optical Fiber Sensing and Electromagnetic Propagation.