Flowmeter mounted on a containment

Details Flowmeter mounted on a containment Flowmeter mounted on a containment

2003-10-15

2008-12-30

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

C073S861290

Reexamination Certificate

active

07469599

ABSTRACT:
Flowmeter comprising at least two ultrasonic transducers that are mounted on a container which is penetrated by a medium in a certain direction of flow. The ultrasonic transducers alternately transmit and receive ultrasonic test signals in the direction of flow and counter to the direction of flow. The flowmeter further comprises a control/evaluation unit which determines and/or monitors the volume flow of the medium inside the container based on the difference in the travel time of the ultrasonic test signals propagating in the direction of flow and counter to the direction of flow. The ultrasonic transducers are configured such that they transmit and receive ultrasonic test signals or sound fields having a large aperture angle or a great beam expansion.

REFERENCES:
patent: 4431936 (1984-02-01), Fu et al.
patent: 5351560 (1994-10-01), Russwurm
patent: 6460419 (2002-10-01), Su
patent: 6474174 (2002-11-01), Su

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