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Browsing 8. Congresso Brasileiro de Metrologia (CBM) by Author "Alvarenga, Andre Victor"

Browsing 8. Congresso Brasileiro de Metrologia (CBM) by Author "Alvarenga, Andre Victor"

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  • Experimental findings on the measurements uncertainty of speed of sound and the alignment system 
    Santos, Taynara Queiroz; Alvarenga, Andre Victor; Oliveira, Débora Paulino; Mayworm, Ruan Carvalho; Souza, Rebeca Monteiro; Costa-Félix, Rodrigo Pereira Barretto da (2015)
    Speed of sound is an important quantity to characterize reference materials for ultrasonic applications, for instance. The alignment between the transducer and the test body is an key activity in order to perform reliable ...
  • Metrological evaluation of a flaw detector used in non-destructive testing by ultrasound 
    Mayworm, Ruan Carvalho; Costa-Félix, Rodrigo Pereira Barretto da; Alvarenga, Andre Victor (2015)
    Nondestructive tests are widely used in various sectors of industry, and its main techniques are based on the use of ultrasound. The flaw detector is a device used in ultrasonic testing. In this article, it is studied the ...
  • Metrology applied to ultrasound characterization of trabecular bones using the AIB parameter 
    Braz, Douglas dos Santos; Silva, Cristiane Evelise Ribeiro da; Alvarenga, Andre Victor; Siqueira Junior, Dilton; Costa-Félix, Rodrigo Pereira Barretto da (2015)
    Apparent Integrated Backscattering (AIB) presents correlation between Apparent Backscatter Transfer Function and the transducer bandwidth. Replicas of trabecular bones (cubes of 20 mm side length) created by 3D printing ...
  • Speed of sound as a function of temperature for ultrasonic propagation in soybean oil 
    Oliveira, Pâmella Assunção; Silva, Raphaela de Melo Baêsso e; Morais, Gabriel Cataldo de; Alvarenga, Andre Victor; Félix, Rodrigo Pereira Barretto da Costa (2015)
    Ultrasound has been used for characterization of liquid in several productive sectors and research. This work presents the studied about the behavior of the speed of sound in soybean oil with increasing temperature. The ...
  • Standard operating procedure to prepare agar phantoms 
    Souza, Rebeca Monteiro; Santos, Taynara Queiroz; Oliveira, Débora Paulino; Souza, Raquel Monteiro; Alvarenga, Andre Victor; Costa-Félix, Rodrigo Pereira Barretto da (2015)
    Agar phantoms are widely used as soft tissue mimics and some preparation techniques are described in the literature. There are also standards that describe the recipe of a soft tissue mimicking material (TMM). However some ...
  • Uncertainty evaluation of dead zone of diagnostic ultrasound equipment 
    Souza, Raquel Monteiro; Alvarenga, Andre Victor; Braz, Douglas dos Santos; Petrella, Lorena Itati; Costa-Félix, Rodrigo Pereira Barretto da (2015)
    This paper presents a model for evaluating measurement uncertainty of a feature used in the assessment of ultrasound images: dead zone. The dead zone was measured by two technicians of the INMETRO’s Laboratory of Ultrasound ...
  • Use of ultrasound to monitor physical properties of soybean oil 
    Silva, Raphaela de Melo Baêsso e; Oliveira, Pâmella Assunção; Morais, Gabriel Cataldo de; Alvarenga, Andre Victor; Costa-Félix, Rodrigo Pereira Barretto da (2015)
    The study of the monitoring physical properties of soybean oil was performed. The pulse-echo method allowed measuring the density and viscosity of the oil in real time and accurately. The physical property values were ...

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