Ultrasonic Bessel beam generation from radial modes of piezoelectric discs

Chillara, Vamshi; Davis, Eric Sean; Pantea, Cristian; Sinha, Dipen N.

doi:10.1016/j.ultras.2019.02.002

Title: Ultrasonic Bessel beam generation from radial modes of piezoelectric discs

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Abstract

We present comprehensive analytical and experimental investigations on ultrasonic Bessel beam generation from radial modes of piezoelectric disc transducers. The Bessel vibration pattern of the radial modes was experimentally measured using Laser Doppler Vibrometry and was found to be in very good agreement with those obtained from numerical simulations. Ultrasonic beam profiles from the first four radial modes of the piezoelectric disc were measured using a hydrophone in a water tank. The results obtained from the experimental scans were compared to the predictions from an analytical model and were found to be in very good agreement. Also, the Bessel beams generated from the radial modes (except the first) of the piezoelectric discs were found to have narrow beam width for the central lobe compared to those from an ideal piston source of same size. The proposed approach of using radial modes for Bessel beam generation finds applications in imaging, acoustic particle manipulation and trapping, and acousto-optics.

Authors:

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Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Houston, TX (United States)

Publication Date:: Tue Feb 05 00:00:00 EST 2019

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE). Geothermal Technologies Office (EE-4G)

OSTI Identifier:: 1501809

Report Number(s):: LA-UR-18-26929
Journal ID: ISSN 0041-624X

Grant/Contract Number:: 89233218CNA000001

Resource Type:: Accepted Manuscript

Journal Name:: Ultrasonics

Additional Journal Information:: Journal Volume: 96; Journal ID: ISSN 0041-624X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; Energy Sciences

Citation Formats


                    Chillara, Vamshi, Davis, Eric Sean, Pantea, Cristian, and Sinha, Dipen N. Ultrasonic Bessel beam generation from radial modes of piezoelectric discs.  United States: N. p., 2019. 
Web.  doi:10.1016/j.ultras.2019.02.002.

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                    Chillara, Vamshi, Davis, Eric Sean, Pantea, Cristian, & Sinha, Dipen N. Ultrasonic Bessel beam generation from radial modes of piezoelectric discs.  United States.  https://doi.org/10.1016/j.ultras.2019.02.002

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                    Chillara, Vamshi, Davis, Eric Sean, Pantea, Cristian, and Sinha, Dipen N. Tue .  
"Ultrasonic Bessel beam generation from radial modes of piezoelectric discs".  United States.  https://doi.org/10.1016/j.ultras.2019.02.002.  https://www.osti.gov/servlets/purl/1501809.

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@article{osti_1501809,

  title        = {Ultrasonic Bessel beam generation from radial modes of piezoelectric discs},

  author       = {Chillara, Vamshi and Davis, Eric Sean and Pantea, Cristian and Sinha, Dipen N.},

  abstractNote = {We present comprehensive analytical and experimental investigations on ultrasonic Bessel beam generation from radial modes of piezoelectric disc transducers. The Bessel vibration pattern of the radial modes was experimentally measured using Laser Doppler Vibrometry and was found to be in very good agreement with those obtained from numerical simulations. Ultrasonic beam profiles from the first four radial modes of the piezoelectric disc were measured using a hydrophone in a water tank. The results obtained from the experimental scans were compared to the predictions from an analytical model and were found to be in very good agreement. Also, the Bessel beams generated from the radial modes (except the first) of the piezoelectric discs were found to have narrow beam width for the central lobe compared to those from an ideal piston source of same size. The proposed approach of using radial modes for Bessel beam generation finds applications in imaging, acoustic particle manipulation and trapping, and acousto-optics.},

  doi          = {10.1016/j.ultras.2019.02.002},

  journal      = {Ultrasonics},

  number       = ,

  volume       = 96,

  place        = {United States},

  year         = {Tue Feb 05 00:00:00 EST 2019},

  month        = {Tue Feb 05 00:00:00 EST 2019}

}

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