Accession Number:

ADD014937

Title:

Transient Flowmeter Calibration Facility.

Descriptive Note:

Patent application, filed 19 Dec 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Lefebvre, Paul

Report Date:

1990-12-19

Pagination or Media Count:

8.0

Abstract:

An apparatus for defining the free surface of a moving column of a fluid in a vertical pipe to enhance the accuracy of measurements of transient rate of flow of the fluid using electromagnetic flowmeter is described. It provides a neutrally buoyant plug which stays in contact with the free surface of the column of the fluid at all times and thus defines the free surface of the fluid moving in the vertical pipe accurately and reduces the oscillations of the free surface of the fluid.

Descriptors:

• ACCURACY
• BUOYANCY
• CALIBRATION
• ELECTROMAGNETIC PROPERTIES
• FLOWMETERS
• MOTION
• OSCILLATION
• PIPES
• PLUGS
• RATES
• TRANSIENTS
• VERTICAL ORIENTATION

Subject Categories:

• Hydraulic and Pneumatic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE