Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface

Dominique Placko, Tribikram Kundu, Rais Ahmad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

DPSM (Distributed Point Source Method) is a computational technique that can be used to model the pressure field generated by ultrasonic acoustic transducers. This technique involves discretization of the transducer face of any geometrical shape, into a number of elemental surface areas. Point sources are placed at the centroids of the elemental surface areas. The strengths of the point sources are proportional to the surface areas. Pressure field at a given point is the cumulative effect of the pressure fields generated by all point sources. The accuracy of the computational technique depends on the sensor surface discretization. In this paper, circular transducers are modeled using the DPSM technique. This technique is applied to calculate the pressure field distribution in non-homogeneous fluids with interface. The nonhomogeneous fluid is composed of two fluid half-spaces with the interface in front of the transducer face parallel or inclined to the transducer face. Pressure fields in both fluids for normal and angular incidence of the ultrasonic beam have been calculated using DPSM technique.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsT. Kundu
Pages157-168
Number of pages12
Volume4702
DOIs
StatePublished - 2002
EventSmart Nondestructive Evaluation for Health Monitoring of Structural and Biological Systems - San Diego, CA, United States
Duration: Mar 18 2002Mar 19 2002

Other

OtherSmart Nondestructive Evaluation for Health Monitoring of Structural and Biological Systems
CountryUnited States
CitySan Diego, CA
Period3/18/023/19/02

Fingerprint

Ultrasonic sensors
point sources
pressure distribution
ultrasonics
Acoustics
transducers
Transducers
acoustics
sensors
Fluids
fluids
Acoustic transducers
Ultrasonic transducers
half spaces
centroids
Ultrasonics
incidence
Sensors

Keywords

  • Acoustic Pressure
  • Numerical Technique
  • Point Source
  • Pressure Wave
  • Ultrasonic Acoustic Transducer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Placko, D., Kundu, T., & Ahmad, R. (2002). Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface. In T. Kundu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4702, pp. 157-168) https://doi.org/10.1117/12.469875

Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface. / Placko, Dominique; Kundu, Tribikram; Ahmad, Rais.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / T. Kundu. Vol. 4702 2002. p. 157-168.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Placko, D, Kundu, T & Ahmad, R 2002, Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface. in T Kundu (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4702, pp. 157-168, Smart Nondestructive Evaluation for Health Monitoring of Structural and Biological Systems, San Diego, CA, United States, 3/18/02. https://doi.org/10.1117/12.469875
Placko D, Kundu T, Ahmad R. Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface. In Kundu T, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4702. 2002. p. 157-168 https://doi.org/10.1117/12.469875
Placko, Dominique ; Kundu, Tribikram ; Ahmad, Rais. / Theoretical computation of acoustic pressure generated by ultrasonic sensors in presence of an interface. Proceedings of SPIE - The International Society for Optical Engineering. editor / T. Kundu. Vol. 4702 2002. pp. 157-168
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