Noninvasive characterization of a flowing multiphase fluid...

Details Noninvasive characterization of a flowing multiphase fluid... Noninvasive characterization of a flowing multiphase fluid...

2005-05-10

2005-05-10

Williams, Hezron (Department: 2856)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

C073S061490, C073S061790, C073S579000

Reexamination Certificate

active

06889560

ABSTRACT:
An apparatus for noninvasively monitoring the flow and/or the composition of a flowing liquid using ultrasound is described. The position of the resonance peaks for a fluid excited by a swept-frequency ultrasonic signal have been found to change frequency both in response to a change in composition and in response to a change in the flow velocity thereof. Additionally, the distance between successive resonance peaks does not change as a function of flow, but rather in response to a change in composition. Thus, a measurement of both parameters (resonance position and resonance spacing), once calibrated, permits the simultaneous determination of flow rate and composition using the apparatus and method of the present invention.

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