DocumentCode :
2587902
Title :
Modular acoustic velocity sensor: a general-purpose flow meter
Author :
Trivett, D. ; Williams, A. ; Terray, E.
Author_Institution :
Dept. of Appl. Ocean Phys. & Eng., Woods Hole Oceanogr. Instn., MA, USA
fYear :
1990
fDate :
3-5 Apr 1990
Firstpage :
80
Lastpage :
89
Abstract :
The accuracy of an acoustic current meter, called the modular acoustic velocity sensor (MAVS), is evaluated. Sources of error, such as flow disturbance from potential flow around the sensor cage, wake effects from support structure and transducers, vortex shedding from the cage, and electronic zero-point offsets, are discussed. The electronic error dominates at velocities less than 5-10 cm/s, while flow disturbance dominates at higher speeds. The estimated RMS error of the MAVS will be on the order of 3.7% of the mean flow, with a low velocity error floor of 0.1 cm/s
Keywords :
flow measurement; oceanographic equipment; MAVS; accuracy; current meter; error; flow meter; measurement; modular acoustic velocity sensor; modular apparatus; ocean; Acoustic measurements; Acoustic sensors; Acoustic transducers; Acoustical engineering; Capacitors; Current measurement; Instruments; Oceans; Sea measurements; Velocity measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Current Measurement, 1990., Proceedings of the IEEE Fourth Working Conference on
Conference_Location :
Clinton, MD
Type :
conf
DOI :
10.1109/CURM.1990.110894
Filename :
110894
Link To Document :
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