Accession Number : ADD002706

Title :   Acoustic Current/Flow Measuring System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Stallworth,Lewis A ; Hartley,Robert R

Report Date : 13 Apr 1976

Pagination or Media Count : 7

Abstract : The patent relates to a system for measuring flow of water in large bodies of water or in small pipes in which an acoustic signal is transmitted simultaneously via a radio transmitter-receiver system and a projector-hydrophone acoustic system. The electrical and acoustic signals transmitted are received at two preselected locations which are such that they form a right angle triangle with the point of origin of the signals as the vertex of the triangle. The velocity components of the fluid are measured by comparing the delay in time between the transmission of the electrical signal and the acoustic signal started simultaneously from the point of origin. The velocity of the fluid is then determined from the components of the velocity so determined.

Descriptors :   *Water flow, *Acoustic measurement, *Patents, Ocean currents, River currents, Electric fields, Acoustic signals, Radio transmission, Hydrophones

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE