Now showing items 1-6 of 6

    • Characterization of nonhomogeneity in the dispersive properties of the materials used in pipes 

      Millán Blasco, Oliver; Salazar Soler, Jorge; Chávez Domínguez, Juan Antonio; Turó Peroy, Antonio; García Hernández, Miguel J. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This article is focused on the characterization of the lack of homogeneity in the dispersive acoustic properties of polymeric materials used in industrial pipes. Usually, the parameter of interest associated to dispersion ...
    • Comparison between sine wave fitting and zero- crossing methods applied to QCM impedance measurements 

      Chávez Domínguez, Juan Antonio; García Hernández, Miguel J.; Millán Blasco, Oliver; Tur Gaspar, Ignasi; Turó Peroy, Antonio; Amer, Miquel Àngel; Salazar Soler, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
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      This paper presents a comparison between two algorithms for sinusoidal signal characterization applied to QCM impedance measurements. These algorithms are the zero crossing and peak detection method and the 7 parameters ...
    • Influence on the accuracy of clamp-on ultrasonic flowmeters due to the recombination of multiple propagation paths 

      Millán Blasco, Oliver; Salazar Soler, Jorge; Chávez Domínguez, Juan Antonio; Turó Peroy, Antonio; García Hernández, Miguel J. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      Clamp-on ultrasonic flowmeters geometry includes four different materials in the ultrasound propagation path: wedge, coupling material, pipe and liquid. In this case, oblique incidence ultrasonic beam generated by the ...
    • Linearity error in Clamp-on ultrasonic flowmeters due to the installation on pipes made of dispersive materials 

      Millán Blasco, Oliver; Salazar Soler, Jorge; Chávez Domínguez, Juan Antonio; Turó Peroy, Antonio; García Hernández, Miguel J. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      This article analyses and explains the implications that dispersive materials have over the linearity in flow measurement when a Clamp-on ultrasonic flowmeter is used. This is of capital importance because dispersive ...
    • Splitting of the ultrasounic beam path in clamp-on ultrasonic flowmeters due to propagation through dispersive materials 

      Millán Blasco, Oliver; Salazar Soler, Jorge; Chávez Domínguez, Juan Antonio; Turó Peroy, Antonio; García Hernández, Miguel J. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This article explains how a multi-frequency ultrasonic beam path is split due to passing through dispersive materials and the implications that it has in flow measurement using a Clamp-on ultrasonic flowmeter. The importance ...
    • Zero-flow offset variation in ultrasonic clamp-on flowmeters due to inhomogeneity and nonlinearity of pipe materials 

      Millán Blasco, Oliver; Salazar Soler, Jorge; Chávez Domínguez, Juan Antonio; Turó Peroy, Antonio; García Hernández, Miguel J. (2017-11)
      Article
      Restricted access - publisher's policy
      The objective of this paper is to measure the zero-flow offset variation in ultrasonic Clamp-on flowmeters produced by using pipes made of materials with a nonhomogeneous and nonlinear behavior. The evaluation of this ...