Device for determining and/or monitoring volume and/or mass...

Details Device for determining and/or monitoring volume and/or mass... Device for determining and/or monitoring volume and/or mass...

2005-10-25

2008-11-11

Thompson, Jewel V (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

Reexamination Certificate

active

07448282

ABSTRACT:
A device for determining and/or monitoring volume and/or mass flow rate of a medium that flows in a direction of flow through a pipeline/measuring tube of inner diameter. The device comprises at least two ultrasonic transducers that emit and/or receive ultrasonic measuring signals along defined sonic paths and a control/evaluation device which determines the volume flow rate and/or the mass flow rate of the medium to be measured inside said pipeline/measuring tube based on the ultrasonic measuring signals according to the travel-time difference principle. In order to provide a multichannel ultrasonic flowmeter, at least one reflector element is placed in the interior of the pipeline/measuring tube. The reflector element has a defined distance from the inner surface of the pipeline/measuring tube and is placed within the sonic path of the ultrasound measuring signals running through the pipeline/measuring tube.

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patent: 5650572 (1997-07-01), Vontz
patent: 5770800 (1998-06-01), Jenkins et al.
patent: 6178827 (2001-01-01), Feller
patent: 7289914 (2007-10-01), Hishida et al.
patent: 198 08 642 (1999-08-01), None
patent: 0 477 418 (1992-04-01), None
patent: 11-201790 (1999-07-01), None

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