Title :
Acoustic correlation current profiler
Author :
Bradley, Steven ; Deines, Kent ; Rowe, Francis
Author_Institution :
RD Instrum., San Diego, CA, USA
Abstract :
An acoustic correlation current profiler (ACCP) system for obtaining vertical profiles of current velocities to ranges of approximately 1500 m is discussed. A single transmitter and a spatial array of eight receivers arranged in a certain geometry is used to measure water mass displacement from receiver array cross correlation functions. Test data from a shallow water ACCP operating at 76.8 kHz is presented and compared to model predictions as well as to velocity profiles obtained simultaneously during the tests from an adjacent acoustic Doppler current profiler. Predicted performance for a lower frequency, deep water unit is presented
Keywords :
flow measurement; oceanographic equipment; oceanographic techniques; 76.8 kHz; ACCP; acoustic correlation current profiler; current; measurement apparatus; ocean dynamics; receiver array cross correlation functions; velocity profiles; vertical profiles; Acoustic beams; Acoustic measurements; Acoustic pulses; Acoustic scattering; Acoustic testing; Acoustic transducers; Frequency; Geometry; Sonar; Transmitters;
Conference_Titel :
Current Measurement, 1990., Proceedings of the IEEE Fourth Working Conference on
Conference_Location :
Clinton, MD
DOI :
10.1109/CURM.1990.110918
