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Processing an acoustic microscope's spatiotemporal signal to determine the parameters of an isotropic layer.

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Τίτλος: Processing an acoustic microscope's spatiotemporal signal to determine the parameters of an isotropic layer.
Συγγραφείς: Titov, S., Levin, V., Petronyuk, Yu.
Πηγή: Acoustical Physics; Nov2017, Vol. 63 Issue 6, p744-750, 7p
Θεματικοί όροι: Acoustic microscopes, Spatiotemporal processes, Signal processing, Isotropic properties, Body waves (Seismic waves), Thickness measurement
Περίληψη: This paper presents a method for measuring the thickness and velocities of body waves and the density of an isotropic layer by a pulse scanning acoustic microscope. The method is based on recording the microscope signal as a function of the displacement magnitude of the focused ultrasonic transducer along its axis perpendicular to the sample surface and on the decomposition of the recorded 2D spatiotemporal signal into the spectrum of plane pulse waves. The velocities of the longitudinal and transverse waves and the layer's thickness are calculated from the relative delays of the components of the spectrum of plane waves reflected from the surfaces of the layer and the density is computed by the amplitudes of these components. An experimental investigation of a test sample in the form of a glass plate carried out in the 50-MHz range shows that the error in measuring the thickness and velocities of body waves does not exceed 1% and the density measurement error does not exceed 10%. [ABSTRACT FROM AUTHOR]
Copyright of Acoustical Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Processing an acoustic microscope's spatiotemporal signal to determine the parameters of an isotropic layer.
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  Data: <searchLink fieldCode="AR" term="%22Titov%2C+S%2E%22">Titov, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Levin%2C+V%2E%22">Levin, V.</searchLink><br /><searchLink fieldCode="AR" term="%22Petronyuk%2C+Yu%2E%22">Petronyuk, Yu.</searchLink>
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  Data: Acoustical Physics; Nov2017, Vol. 63 Issue 6, p744-750, 7p
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  Data: <searchLink fieldCode="DE" term="%22Acoustic+microscopes%22">Acoustic microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Spatiotemporal+processes%22">Spatiotemporal processes</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Isotropic+properties%22">Isotropic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Body+waves+%28Seismic+waves%29%22">Body waves (Seismic waves)</searchLink><br /><searchLink fieldCode="DE" term="%22Thickness+measurement%22">Thickness measurement</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This paper presents a method for measuring the thickness and velocities of body waves and the density of an isotropic layer by a pulse scanning acoustic microscope. The method is based on recording the microscope signal as a function of the displacement magnitude of the focused ultrasonic transducer along its axis perpendicular to the sample surface and on the decomposition of the recorded 2D spatiotemporal signal into the spectrum of plane pulse waves. The velocities of the longitudinal and transverse waves and the layer's thickness are calculated from the relative delays of the components of the spectrum of plane waves reflected from the surfaces of the layer and the density is computed by the amplitudes of these components. An experimental investigation of a test sample in the form of a glass plate carried out in the 50-MHz range shows that the error in measuring the thickness and velocities of body waves does not exceed 1% and the density measurement error does not exceed 10%. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Acoustical Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1134/S106377101706015X
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        Type: general
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      – SubjectFull: Signal processing
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      – SubjectFull: Isotropic properties
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      – SubjectFull: Body waves (Seismic waves)
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      – SubjectFull: Thickness measurement
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              Text: Nov2017
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