Transit time flow meter probe

摘要

A transit time flow sensor is configured as an insertable probe carrying a pair of transducers spaced apart along an acoustic path. The transducers are attached to respective tabs extending outwardly from the ends of a tubular member and skewed with respect to an axis of the tube so that acoustic signals from one of the transducers are reflected from an interior portion of the tube and subsequently detected by the other transducer.

主权项

1. A transit-time flow metering probe insertable into a fluid flowing along a flow direction, the probe comprising:
a tubular portion having two ends and an axis alignable parallel to the flow direction, the tubular portion comprising an acoustic reflector portion on an inside surface thereof; a pair of transducer mounting tab portions spaced apart along a line parallel to the axis of the tubular portion, the tab portions skewed with respect to the axis by respective angles selected so that a respective wettable surface of each of the tab portions and the acoustic reflector portion define an acoustic path; and a pair of transducers respectively attached to non-wettable surfaces of associated mounting tab portions, the transducers operable to transmit and receive acoustic signals propagating through the tab portions and along the acoustic path.