An experimental study of vane coupling in Price current meters

Author

Kenney, Bernard C.

Author_Institution

Nat. Hydrology Res. Inst., Saskatoon, Sask., Canada

fYear

1995

fDate

7-9 Feb 1995

Firstpage

10

Lastpage

14

Abstract

Sensors used to measure the magnitude of a current are frequently oriented into the flow with a direction vane. In the case of turbulent flow (or flow with wave motion superimposed), vane fluctuations may couple directly with the magnitude sensor. The degree of coupling is a function of the geometry of the current meter, the frequency-wave number characteristics of the flow oscillations and the bandwidth of the vane response. Many traditional oceanographic and hydrologic current meters are prone to coupling errors. In this paper, the results of field tests on the vane coupling in a Price 1210AA current meter are compared for two rivers with differing turbulence characteristics. The design of a new mount which totally eliminates vane coupling in the Price meter is also presented

Keywords

flow measurement; flowmeters; hydrological equipment; hydrological techniques; oceanographic equipment; oceanographic techniques; 1210AA current meter; Price current meter; apparatus; coupling error; direction vane; equipment; flow measurement; flow measurement technique; flowmeter; hydrology; instrument; magnitude sensor; ocean current; river; sea; turbulence; vane coupling; Bandwidth; Blades; Current measurement; Fluctuations; Fluid flow measurement; Frequency; Geometry; Sea measurements; Sensor phenomena and characterization; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Current Measurement, 1995., Proceedings of the IEEE Fifth Working Conference on

Conference_Location

St. Petersburg, FL

Print_ISBN

0-7803-2437-4

Type

conf

DOI

10.1109/CCM.1995.516142

Filename

516142