Patent ID: 7752919
Filing Date: 2010-07-13
Classification: G01F

Abstract:
1. A flow meter comprising: a spool piece that defines a central passage; a first plurality of transducer pairs mechanically coupled to the spool piece, each transducer pair defines a chord across the central passage, each transducer pair configured to propagate and receive acoustic signals along respective chords, and at least two chords of the first plurality of transducers pairs are non-planar; a second plurality of transducer pairs mechanically coupled to the spool piece, each transducer pair defines a chord across the central passage, each transducer pair configured to propagate and receive acoustic signals along respective chords, and at least two chords of the second plurality of transducers pairs are non-planar; and meter electronics electrically coupled to the first and second plurality of transducer pairs, the meter electronics configured to determine a first value indicative of fluid flow through the central passage, the first value determined using only signals of the first plurality of transducer pairs; and the meter electronics further configured to determine a second value indicative of fluid flow through the central passage, the second value determined using only signals of the second plurality of transducer pairs.