DocumentCode
905688
Title
Further Development in the Doppler Method of Water-Velocity Measurement
Author
Vlasak, Weldon
Author_Institution
George Washington University, Washington, D.C.
Volume
6
Issue
4
fYear
1968
Firstpage
197
Lastpage
204
Abstract
A Doppler current meter was developed to provide an instrument for the measurement of water-flow velocity. This type of instrument detects the Doppler frequency shift which occurs in the acoustic signal received from reflections from moving microscopic particles in water which are excited by an acoustic beam of high-frequency energy. Mechanical inertias are minimal and there are no moving parts, so high accuracy is possible even under transient conditions. A test facility was designed to determine the instrument accuracy. Certain unusual phenomena were revealed.
Keywords
Acoustic measurements; Acoustic reflection; Acoustic signal detection; Current measurement; Frequency; Instruments; Microscopy; Optical reflection; Underwater acoustics; Velocity measurement;
fLanguage
English
Journal_Title
Geoscience Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9413
Type
jour
DOI
10.1109/TGE.1968.271250
Filename
4043242
Link To Document