Method for measuring flow of fluid moving in pipe or...

Details Method for measuring flow of fluid moving in pipe or... Method for measuring flow of fluid moving in pipe or...

2005-06-21

2005-06-21

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

C073S861180

Reexamination Certificate

active

06907792

ABSTRACT:
A flow rate of fluid moving within a tube having a small diameter can be measured by the steps of: preparing a structure that has first and second oscillation wave generating-detecting means on a surface of a wall along the conduit; moving the fluid in the conduit; generating an oscillation wave in the first oscillation wave generating-detecting means, applying the wave onto the wall, and measuring a period of time required for transmitting the generated oscillation wave to the second oscillation wave generating-detecting means within the wall; generating an oscillation wave in the second oscillation wave generating-detecting means, applying the wave onto the wall, and measuring a period of time required for transmitting the generated oscillation wave to the first oscillation wave generating-detecting means in the wall; and comparing a difference of the periods of time of transmission and separately prepared calibration data.

REFERENCES:
patent: 3935735 (1976-02-01), Lee
patent: 6412354 (2002-07-01), Birchak et al.
patent: 6470757 (2002-10-01), Chang
patent: 6651513 (2003-11-01), Wenger et al.
patent: 58-151564 (1883-09-01), None
patent: 61-028821 (1986-02-01), None
patent: 07-139982 (1995-06-01), None

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