Patent ID: 7380470
Filing Date: 2008-06-03
Classification: G01F

Abstract:
1. An ultrasonic flow meter for measuring a flow velocity of a fluid flowing in an essentially laminar flow in a main flow direction, comprising: at least two ultrasonic transducers capable of at least one of emitting and receiving an ultrasonic waves at an angle a to the main flow direction that is different from 90°; and at least one turbulator situated upstream from at least one of the at least two ultrasonic transducers in the main flow direction of the fluid, the at least one turbulator generating longitudinal eddies in at least one zone adjacent to the at least one of the at least two ultrasonic transducers, wherein: the at least one zone of the fluid in which the at least one turbulator generates the longitudinal eddies includes one of at least one protrusion of a flow pipe and a portion thereof; an inner surface of the flow pipe is essentially smooth and uninterrupted with the exception of the at least one protrusion and the at least one turbulator; and a length dimension of the at least one turbulator runs along a leading edge of the at least one protrusion.