Buerkert Werke Gmbh & Co. Kg

Burkert S.a.s.

Bertrand Koenig

Yannick Fuchs

Yves Hoog

Manon Drui

Stanislas Clatot

Noam Nancy

A fluid measuring arrangement with a flow channel for a fluid to be measured having at least two areas of an outer wall forming waveguide parts for surface acoustic waves. The waveguide parts are spaced apart from each other along the circumference of the flow channel. A first and/or a second signal converter is arranged at each waveguide part, wherein at least two first signal converters arranged on different waveguide parts or two second signal converters arranged on different waveguide parts are spaced with respect to each other in the axial direction of the flow channel.

Ultrasonic fluid measuring arrangement with at least two waveguide parts spaced apart on an outer wall of a measuring tube

A fluid meter has a housing comprising a flow channel for fluid to be measured and at least one elongate module-receiving opening forming a passage from an outer surface of the housing to the flow channel. At least one fluid-measuring module, prefabricated separately, from the housing with a base section formed as a waveguide for surface acoustic waves, and at least one signal transformer to excite surface acoustic waves in the waveguide and/or receive surface acoustic waves from the waveguide is provided. When inserted into the module-receiving opening, the base section of the fluid-measuring module forms part of the flow channel inner wall and contacts fluid flowing through it. Surface acoustic waves emitted by the signal transformer can be coupled out of the waveguide and can propagate through fluid in the flow channel as bulk acoustic waves and/or bulk acoustic waves can be coupled into the waveguide and received by the signal transformer.

Fluid meter and fluid measuring module for a fluid measuring device and assembly

A fluid meter has a measuring tube which has a fluid channel allowing a fluid (F) to flow through and which has a measuring section in which at least one area of a measuring tube wall is formed as a waveguide for surface acoustic waves, which forms an interface with the fluid (F), and at least one transmitter for exciting acoustic waves in the waveguide as well as at least one receiver for receiving acoustic waves from the waveguide, wherein acoustic waves excited by the transmitter can propagate through the fluid (F) as a bulk wave (V) and the bulk wave (V) has at least one reflection point (IP) on the measuring tube wall. The measuring tube wall has a first wall thickness (T) in the area of the transmitter and in the area of the receiver and has a second wall thickness (T) which differs from the first wall thickness (T) in the area of all reflection points (IP) of the bulk wave (V).

Fluid meter including a first wall thickness in the area of a transmitter and in the area of a receiver and a second wall thickness in the area there between

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Ingelfingen, Germany

Bertrand Koenig