Remote Techniques for Capillary Wave Measurement

Abstract

The concept of a wave-length profilometer based on phase-ranging with a VHF-modulated carbon dioxide laser was examined. Experimental measurements of the diffusely backscattered CO2 laser radiation from the surface of water were made. Based on these measurements, the conclusion is that a laser profilometer can be assembled mainly from commercially available components. Two designs are recommended: one for use at a range of 3 m for measurements in a wind-wave tank and the other for use at a range of 10 m from a tower in the ocean.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 02, 1973
Accession Number
AD0762453

Entities

People

  • Kamala S. Krishnan
  • Norman A. Peppers

Organizations

  • SRI International

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Atmospheric Attenuation
  • Backscattering
  • Capillary Waves
  • Carbon Dioxide Lasers
  • Detection
  • Diffraction
  • Electromagnetic Scattering
  • Geometry
  • Infrared Detectors
  • Measurement
  • Measuring Instruments
  • Modulation
  • Optics
  • Scattering
  • Statistics
  • Surface Roughness
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Optical Physics and Photonics.
  • Software Engineering

Technology Areas

  • Directed Energy