Measurement of ultrasonic nonlinear parameter by using non-contact ultrasonic receiver

Jongbeom Kim, Kyoung Young Jhang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The ultrasonic nonlinear parameter β is generally known as an effective parameter for evaluating material degradation. Thus far, most research has been conducted using a contact method. However, since measurement by this contact method is affected by the contact conditions between the transducer and the specimen, additional devices are required to maintain the contact conditions stable during the measurement. To avoid this inconvenience, this paper proposes a noncontact method. In this study, only the receiver was replaced with a noncontact receiver, and then, the ultrasonic nonlinear parameters measured by the newly developed noncontact receiver were compared with those measured by the contact receiver. Results obtained using both these receivers for heat-treated aluminum alloy specimens showed good agreement. From this result, we can confirm that the ultrasonic nonlinear parameter β can be measured using the proposed noncontact ultrasonic method.

Original languageEnglish
Pages (from-to)1133-1137
Number of pages5
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume38
Issue number10
DOIs
StatePublished - 2014 Oct 1

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Ultrasonics
Transducers
Aluminum alloys
Degradation

Keywords

  • Ultrasound nonlinear parameter non-contact aluminum alloy

Cite this

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Measurement of ultrasonic nonlinear parameter by using non-contact ultrasonic receiver. / Kim, Jongbeom; Jhang, Kyoung Young.

In: Transactions of the Korean Society of Mechanical Engineers, A, Vol. 38, No. 10, 01.10.2014, p. 1133-1137.

Research output: Contribution to journalArticle

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