Impact of Flow Profile Effects on Controlotron WideBeam, Clamp-on Flowmeters

摘要

In July of 2003, Controlotron had the opportunity to participate in tests run by Nova at the Didsbury facility in Canada. The purpose of the tests was to investigate the impact of flow profile distortions on field clamp-on ultrasonic gas flowmeters. We are pleased to present the results for the Controlotron WideBeam~TM system. rnControlotron WideBeam technology uses sound that passes diametrically through the fluid – not in chordal mode, as is the case for most insertion type meters. Consequently, meter behavior is expected to be quite different from other ultrasonic meter types under conditions of flow profile distortion. Controlotron’s externally mounted WideBeam sensors also interrogate a very large percentage of flow volume within the measurement section. This produces more flow profile averaging than shear mode, clamp-on, or insertion type sensors. For these reasons, it was anticipated that the Controlotron WideBeam system would be highly tolerant of flow profile variability.