Abstract: An ultrasonic flow meter configured to measure a flow within a conduit is described. The flow meter includes first and second transducers configured to transmit acoustic signals in forward and reverse direction as fluid flow signals along a fluid flow signal path through a fluid within the conduit, an acoustic rail extending between the first and second transducers configured to receive the transmitted acoustic signals for transmission as acoustic rail signals in forward and reverse direction along an acoustic rail signal path along the acoustic rail, a printed circuit board including circuitry for conducting ultrasonic transit time flow measurements and a programmable processor included on the printed circuit board that is configured to generate flow measurement data using the fluid flow signals and the acoustic rail signals. The acoustic rail being isolated from the conduit.

Abstract: An ultrasonic flow meter configured to measure a flow within a conduit is described. The flow meter includes first and second transducers configured to transmit acoustic signals in forward and reverse direction as fluid flow signals along a fluid flow signal path through a fluid within the conduit, an acoustic rail extending between the first and second transducers configured to receive the transmitted acoustic signals for transmission as acoustic rail signals in forward and reverse direction along an acoustic rail signal path along the acoustic rail, a printed circuit board including circuitry for conducting ultrasonic transit time flow measurements and a programmable processor included on the printed circuit board that is configured to generate flow measurement data using the fluid flow signals and the acoustic rail signals. The acoustic rail being isolated from the conduit.