Scalable averaging insertion vortex flow meter

Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy

Reexamination Certificate

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Reexamination Certificate

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07073394

ABSTRACT:
An insertion vortex flow meter for measuring a flow rate of a process fluid in a pipe has a mounting assembly, a shedding bar and a sensor assembly. The mounting assembly is attached to a surface of the pipe adjacent an opening in a side wall of the pipe. The shedding bar is inserted through the opening and extends an entire diameter of the pipe. The shedding bar is held in place by a compression force exerted by the sensor assembly on a proximal end of the shedding bar, such that the shedding bar is held by the compressive force between the sensor assembly and an opposing side wall of the pipe. The sensor assembly is adapted to measure motion of a pivoting element corresponding to vortices in the process fluid caused by the shedding bar. The sensor assembly adapted to produce an output indicative of the volumetric flow rate based on the frequency of the measured motion.

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