ULTRA-HIGH FREQUENCY FATIGUE-TESTING APPARATUS - UNIV SOGANG IND UNIV COOP FOUN

Title:

ULTRA-HIGH FREQUENCY FATIGUE-TESTING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2011/062322

Kind Code:

A1

Abstract:

According to the present invention, an ultra-high frequency fatigue-testing apparatus comprises: a first piezoelectric transducer provided at a region on one side of a test piece; a first amplifier horn connecting the first piezoelectric transducer to one end of the test piece, and amplifying vibrations generated by the first piezoelectric transducer and relaying the amplified vibrations to the test piece; a second piezoelectric transducer at a region on the other side of the test piece; and a second amplifier horn connecting the second piezoelectric transducer to the other end of the test piece, and amplifying vibrations generated by the second piezoelectric transducer and relaying the amplified vibrations to the test piece. According to the present invention, fatigue stresses are regularly applied to the test piece, thus improving fatigue-testing reliability.

Inventors:

PARK IN-GYU (KR)
CHO IN-SIK (KR)
LEE CHANG-SOON (KR)
PYOUN YOUNG-SIK (KR)

Application Number:

PCT/KR2010/000082

Publication Date:

May 26, 2011

Filing Date:

January 06, 2010

Export Citation:

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Assignee:

UNIV SOGANG IND UNIV COOP FOUN (KR)
PARK IN-GYU (KR)
CHO IN-SIK (KR)
LEE CHANG-SOON (KR)
PYOUN YOUNG-SIK (KR)

International Classes:

G01N3/38; G01M7/02

Foreign References:

JP2007017288A	2007-01-25
JP2002243604A	2002-08-28
JP2006266964A	2006-10-05
KR20090066853A	2009-06-24