Virginia Institute of Marine Science
Proceedings of the 21th Ocean Engineering Conference in Taiwan, Republic of China
Laboratory experiments have been conductef. for determining what would be the correct selection of acoustic devices for measuring the shape of sand ripples. The results reveal that a toneburst type signal generator with I or 2 watts will be sufficient to drive the transducer. A transducer with focus and reasonable size would be the best choice. While measuring, the ratio of measuring distance (between the transducer and sea floor) and the transducer's focus length should be maintained at a ratio between 90% and II 0% for best results.
Sand ripples; wave action
Maa, Jerome P-Y; Ou, S-H; and Huang, C-J, Measurements of the Shape of Sand Ripples (1999). Proceedings of the 21th Ocean Engineering Conference in Taiwan, Republic of China.