Compact vibratory flowmeter for measuring flow...

Details Compact vibratory flowmeter for measuring flow... Compact vibratory flowmeter for measuring flow...

2011-05-10

2011-05-10

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

Reexamination Certificate

active

07938021

ABSTRACT:
A compact vibratory flowmeter (200) for measuring flow characteristics of a cement flow material at a cement flow material pressure of greater than about 10 pounds-per-square-inch (psi) is provided according to an embodiment of the invention. The compact vibratory flowmeter (200) includes at least two pickoff sensors (308) and a driver (309). The compact vibratory flowmeter (200) further includes one or more flow conduits (301). The at least two pickoff sensors (308) are affixed to the one or more flow conduits (301) and the driver (309) is configured to vibrate the one or more flow conduits (301). The one or more flow conduits (301) include a drive frequency that is less than about 200 Hertz (Hz) and a frequency ratio of the drive frequency to a fluid resonant frequency of the cement flow material that is less than about 0.8.

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Coriolis Mass Flowmeters [online], retrieved on Mar. 8, 2005, retrieved from Endress & Hauser website on the Internet <URL: http://www.us.endress.com/eh/sc/america/us/en/products/home.nsf/>.

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