Real-Time in-Line Industrial Fluids Characterization Using Multiple Pulse Repetition Frequency

  • Valentino MeacciEmail author
  • Riccardo Matera
  • Johan Wiklund
  • Stefano Ricci
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 512)


The characterization of fluids flowing in industrial pipes is of paramount importance to optimize the production process and guarantee the final product quality in most industries. Rheological parameters of the fluid can be efficiently calculated starting from the Pressure Drop (PD) along a tract of the pipe, and the velocity profile that the flow develops along the pipe diameter, which can be assessed through Ultrasounds Pulsed Wave Doppler (PWD). Unfortunately, in PWD the maximum detectable velocity is restricted by the aliasing limit related to the Pulse Repetition Frequency (PRF). The use of PRF sequences at different rate can recover de-aliased velocities by combining the aliased data. In this work, we extend the capabilities of an embedded PWD ultrasound system used to characterize industrial fluids by implementing, in real-time, the multi-PRF method.


Doppler measurement Fluid characterization Nyquist velocity extension Staggered double-PRE 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Valentino Meacci
    • 1
    Email author
  • Riccardo Matera
    • 1
  • Johan Wiklund
    • 2
  • Stefano Ricci
    • 1
  1. 1.Information Engineering DepartmentUniversity of FlorenceFlorenceItaly
  2. 2.Bioscience and Materials DepartmentRISE Research Institutes of SwedenGothenburgSweden

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