Non-invasive ultrasonic system to determine internal...

Details Non-invasive ultrasonic system to determine internal... Non-invasive ultrasonic system to determine internal...

2007-11-08

2009-11-17

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

Reexamination Certificate

active

07617739

ABSTRACT:
A system for determining pressure change in a liquid flowing in a tube of an elastic material has a sensor head having a slot and a pair of piezoelectric elements mounted in opposing walls of said slot between which the tube is placed in contact with the opposing elements. An electronic circuit generates periodic bursts of electro-mechanical energy from one of the elements that is transmitted through the tube to be received by the other element to be converted to an electrical signal from which is measured the travel time value of the energy through the tube and liquid therein and the amplitude value of the received signal which values are compared to at least one of base line travel time and amplitude values to determine a change of pressure of the liquid flowing in the tube.

REFERENCES:
patent: 4807479 (1989-02-01), Sako et al.
patent: 5031460 (1991-07-01), Kanenobu et al.
patent: 6030343 (2000-02-01), Chechersky et al.
patent: 7109720 (2006-09-01), Baurand et al.
patent: 7240553 (2007-07-01), Segura et al.
patent: 7290450 (2007-11-01), Brown et al.
patent: 2001165748 (2001-06-01), None
J. Webster (ed.), Wiley Encyclopedia of Electrical and Electronics Engineering, Flowmeters, Copyright # 1999 John Wiley & Sons, Inc.
J. Webster (ed.), Wiley Encyclopedia of Electrical and Electronics Engineering, Pressure Sensors. Copyright—c 1999 John Wiley & Sons, Inc.

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