Abstract: A hybrid ultrasonic flowmeter includes at least a first sensing plane including four ultrasonic transducers (transducers) positioned in a parallelogram arrangement on a meter pipe wall including a first and second transducer pair. A first reflector is positioned between the first transducer pair on a first portion of the meter pipe wall, and a second ultrasonic reflector is between the second transducer pair on a second portion of the meter pipe wall opposite the first wall portion. The transducers have assembly angles and emission patterns for emitting ultrasonic beams to provide a plurality of direct measurement paths and a plurality of reflective paths involving a first reflective path involving the first ultrasonic reflector and a second reflective path involving the second ultrasonic reflector. A flow electronics module including a transceiver causes the transducers to transmit ultrasonic signals and processes sensing signals generated by the transducers for determining a volume flow.

Abstract: A hybrid ultrasonic flowmeter includes at least a first sensing plane including four ultrasonic transducers (transducers) positioned in a parallelogram arrangement on a meter pipe wall including a first and second transducer pair. A first reflector is positioned between the first transducer pair on a first portion of the meter pipe wall, and a second ultrasonic reflector is between the second transducer pair on a second portion of the meter pipe wall opposite the first wall portion. The transducers have assembly angles and emission patterns for emitting ultrasonic beams to provide a plurality of direct measurement paths and a plurality of reflective paths involving a first reflective path involving the first ultrasonic reflector and a second reflective path involving the second ultrasonic reflector. A flow electronics module including a transceiver causes the transducers to transmit ultrasonic signals and processes sensing signals generated by the transducers for determining a volume flow.