Offshore Technology Research Center

 

Abstract ID# :

A26

Report Title:

Development of an Optical Slope-Measuring Device for the Study of Water Waves

Authors:

L. Farragher, A. Spell, and J. Zhang, Texas A&M University

Report Date:

February, 1992
An optical laser slope gage was successfully constructed, calibrated , and tested for the measurement of the instantaneous wave slope in a two-dimensional wave tank. The operation and calibration was established, based on the refraction of a light beam at the air-water interface. The wave elevation time series obtained from the integrated slope showed good agreement with the measurements obtained from a conventional wave probe. Preliminary measurements on a dual component wave have also shown this device useful for obtaining important information on wave-wave interactions.

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