Thermal pulsed ultrasonic flow sensor

Details Thermal pulsed ultrasonic flow sensor Thermal pulsed ultrasonic flow sensor

2007-09-18

2007-09-18

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring transit time of tracer or tag

C600S547000

Reexamination Certificate

active

11564663

ABSTRACT:
In thermal pulse flow measurements a relatively small bolus of flowing fluid is heated or cooled and the time required for the bolus to move downstream a known distance is measured. In many fluids, changing the temperature changes the acoustic transmission properties of the bolus from those of the rest of the fluid, so the bolus can be detected when it intersects an acoustic beam. The use of an acoustic beam or beams, which are usually defined between acoustic transmitting receiving transducers, typically provides a high frequency carrier which is modulated by the change in acoustic properties of the bolus when it passes between the two transducers. When compared to conventional thermal measurements, this acoustic approach provides faster response times and can thus be used for measuring higher flow rates.

REFERENCES:
patent: 4480483 (1984-11-01), McShane
patent: 5146414 (1992-09-01), McKown et al.
patent: 5954659 (1999-09-01), Curley et al.
patent: 6299583 (2001-10-01), Eggers et al.
patent: 6926838 (2005-08-01), Krivitski et al.
patent: 7112176 (2006-09-01), Krivitski et al.
patent: 2004/0230131 (2004-11-01), Kassab et al.

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