Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates

H. Kannajosyula, Clifford Jesse Lissenden, III, Joseph Lawrence Rose

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

1 Citation (Scopus)

Abstract

We present a method for mode selection of guided wave modes and beam steering using purely amplitude variation across a one dimensional linear array of transducers. The method is distinct from apodization of phased array transducers that involves amplitude variation in addition to time delays and merely aims to improve the spectral characteristics of the transducer. The relationship between amplitude variation and the pitch of the array is derived by considering the resulting transduction as analogous to a spatio-temporal filter approach. It is also shown analytically and through numerical examples that the proposed method results in bidirectional guided waves when the steering angle is zero. Further, for non-zero steering angles, the waves travel in four directions, including the desired direction. Experimental studies are suggested.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation, Volume 32
EditorsDale E. Chimenti, Donald O. Thompson
PublisherAmerican Institute of Physics Inc.
Pages215-222
Number of pages8
ISBN (Electronic)9780735411296
DOIs
StatePublished - Jan 1 2013
Event39th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2012 - Denver, United States
Duration: Jul 15 2012Jul 20 2012

Publication series

NameAIP Conference Proceedings
Volume1511
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference39th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2012
CountryUnited States
CityDenver
Period7/15/127/20/12

Fingerprint

beam steering
transducers
apodization
phased arrays
linear arrays
travel
time lag
filters

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kannajosyula, H., Lissenden, III, C. J., & Rose, J. L. (2013). Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates. In D. E. Chimenti, & D. O. Thompson (Eds.), Review of Progress in Quantitative Nondestructive Evaluation, Volume 32 (pp. 215-222). (AIP Conference Proceedings; Vol. 1511). American Institute of Physics Inc.. https://doi.org/10.1063/1.4789051
Kannajosyula, H. ; Lissenden, III, Clifford Jesse ; Rose, Joseph Lawrence. / Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates. Review of Progress in Quantitative Nondestructive Evaluation, Volume 32. editor / Dale E. Chimenti ; Donald O. Thompson. American Institute of Physics Inc., 2013. pp. 215-222 (AIP Conference Proceedings).
@inproceedings{ad7e9dd1035548a486f26df1ffe99c73,
title = "Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates",
abstract = "We present a method for mode selection of guided wave modes and beam steering using purely amplitude variation across a one dimensional linear array of transducers. The method is distinct from apodization of phased array transducers that involves amplitude variation in addition to time delays and merely aims to improve the spectral characteristics of the transducer. The relationship between amplitude variation and the pitch of the array is derived by considering the resulting transduction as analogous to a spatio-temporal filter approach. It is also shown analytically and through numerical examples that the proposed method results in bidirectional guided waves when the steering angle is zero. Further, for non-zero steering angles, the waves travel in four directions, including the desired direction. Experimental studies are suggested.",
author = "H. Kannajosyula and {Lissenden, III}, {Clifford Jesse} and Rose, {Joseph Lawrence}",
year = "2013",
month = "1",
day = "1",
doi = "10.1063/1.4789051",
language = "English (US)",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "215--222",
editor = "Chimenti, {Dale E.} and Thompson, {Donald O.}",
booktitle = "Review of Progress in Quantitative Nondestructive Evaluation, Volume 32",

}

Kannajosyula, H, Lissenden, III, CJ & Rose, JL 2013, Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates. in DE Chimenti & DO Thompson (eds), Review of Progress in Quantitative Nondestructive Evaluation, Volume 32. AIP Conference Proceedings, vol. 1511, American Institute of Physics Inc., pp. 215-222, 39th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2012, Denver, United States, 7/15/12. https://doi.org/10.1063/1.4789051

Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates. / Kannajosyula, H.; Lissenden, III, Clifford Jesse; Rose, Joseph Lawrence.

Review of Progress in Quantitative Nondestructive Evaluation, Volume 32. ed. / Dale E. Chimenti; Donald O. Thompson. American Institute of Physics Inc., 2013. p. 215-222 (AIP Conference Proceedings; Vol. 1511).

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

TY - GEN

T1 - Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates

AU - Kannajosyula, H.

AU - Lissenden, III, Clifford Jesse

AU - Rose, Joseph Lawrence

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We present a method for mode selection of guided wave modes and beam steering using purely amplitude variation across a one dimensional linear array of transducers. The method is distinct from apodization of phased array transducers that involves amplitude variation in addition to time delays and merely aims to improve the spectral characteristics of the transducer. The relationship between amplitude variation and the pitch of the array is derived by considering the resulting transduction as analogous to a spatio-temporal filter approach. It is also shown analytically and through numerical examples that the proposed method results in bidirectional guided waves when the steering angle is zero. Further, for non-zero steering angles, the waves travel in four directions, including the desired direction. Experimental studies are suggested.

AB - We present a method for mode selection of guided wave modes and beam steering using purely amplitude variation across a one dimensional linear array of transducers. The method is distinct from apodization of phased array transducers that involves amplitude variation in addition to time delays and merely aims to improve the spectral characteristics of the transducer. The relationship between amplitude variation and the pitch of the array is derived by considering the resulting transduction as analogous to a spatio-temporal filter approach. It is also shown analytically and through numerical examples that the proposed method results in bidirectional guided waves when the steering angle is zero. Further, for non-zero steering angles, the waves travel in four directions, including the desired direction. Experimental studies are suggested.

UR - http://www.scopus.com/inward/record.url?scp=84881179520&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881179520&partnerID=8YFLogxK

U2 - 10.1063/1.4789051

DO - 10.1063/1.4789051

M3 - Conference contribution

AN - SCOPUS:84881179520

T3 - AIP Conference Proceedings

SP - 215

EP - 222

BT - Review of Progress in Quantitative Nondestructive Evaluation, Volume 32

A2 - Chimenti, Dale E.

A2 - Thompson, Donald O.

PB - American Institute of Physics Inc.

ER -

Kannajosyula H, Lissenden, III CJ, Rose JL. Amplitude controlled array transducers for mode selection and beam steering of guided waves in plates. In Chimenti DE, Thompson DO, editors, Review of Progress in Quantitative Nondestructive Evaluation, Volume 32. American Institute of Physics Inc. 2013. p. 215-222. (AIP Conference Proceedings). https://doi.org/10.1063/1.4789051