Pulsed TV-holography recording for vibration analysis applications

Chambard, Jean-Pierre; Chalvidan, V.; Carniel, Xavier; Pascal, Jean‐Claude

doi:10.1016/s0143-8166(02)00006-4

Cited by 20 publications

(17 citation statements)

References 10 publications

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“…Therefore, new measurement methods have been researched, ranging from basic studies to practical techniques [14][15][16][17][18][19][20]. For the basic studies [14][15][16], vibration methods using interference effect of laser light were proposed.…”

Section: Introductionmentioning

confidence: 99%

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Experimental validation of non-contacting measurement method using LED-optical displacement sensors for vibration stress of small-bore piping

et al. 2015

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Section: Introductionmentioning

confidence: 99%

“…For the basic studies [14][15][16], vibration methods using interference effect of laser light were proposed. For the practical techniques [17][18][19][20], measuring systems using optical fibers and laser Doppler vibrometers were proposed.…”

Section: Introductionmentioning

confidence: 99%

Experimental validation of non-contacting measurement method using LED-optical displacement sensors for vibration stress of small-bore piping

et al. 2015

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“…Chambard et al [15] applied TV-Holography to a number of different mechanical structures. With the use of specially developed software called VIPART [16] amplitude, phase, intensity, divergence and force distribution maps were produced.…”

Section: Introductionmentioning

confidence: 99%

Measurement of vibrational energy flow in a plate with high energy flow boundary crossing using electronic speckle pattern interferometry

Eck

Walsh

2012

Applied Acoustics

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Citation: ECK, T. and WALSH, S.J., 2012. Measurement of vibrational energy flow in a plate with high energy flow boundary crossing using electronic speckle pattern interferometry. Applied Acoustics, 73 (9), pp. [936][937][938][939][940][941][942][943][944][945][946][947][948][949][950][951] Additional Information:• This article has been published in the journal, Applied Acous- ABSTRACTThe measurement of vibrational energy flow is an important tool in understanding the vibrational behaviour of structures. In the past, because of transducer constraints, the measurement of vibrational energy flow was mostly restricted to single point measurements. However, recent developments in advanced laser measurement techniques, such as electronic speckle pattern interferometry (ESPI), have gained interest in applying two-dimensional, multi-point measurement techniques to the estimation of vibrational energy flow. This paper addresses the measurement of vibrational energy flow in a plate by using an ESPI based vibrational energy flow measurement technique. A radially symmetric bending wave plate vibration model is introduced and theoretical expressions for energybased quantities are derived. To assess the accuracy of the measurement method, these theoretical quantities are compared to synthetic results derived from the ESPI energy flow measurement technique. The ESPI measurement technique is also applied to an experimental 'infinite' plate. Thus, a specially designed experimental apparatus was constructed so as to minimise undesired wave reflections in the plate and, thus, achieve a high energy flow boundary crossing at the edges of the plate. To reduce the effect of optical noise contamination on the ESPI measured out-of-plane plate displacement data, optimal filters were applied prior to the vibrational energy flow computation. To appraise the accuracy of the experimental method, measured vibrational power on the plate is compared with measured vibrational input power. A difference of less than 1 dB between both quantities indicates that vibrational energy flow within a rectangular plate that contains radially symmetric wave propagation can be measured to a good degree of accuracy if appropriate filtering is applied.

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“…Synchronising pulsed lasers with the exposure of standard CCDs has demonstrated non-stationary event analysis [7,8]. However, this approach is usually limited to measurements of periodic motion.…”

Section: Introductionmentioning

confidence: 99%

Heterodyne speckle interferometer for full-field velocity profile measurements of a vibrating membrane by electronic scanning

Aguanno

Lakestani

Whelan

et al. 2007

Optics and Lasers in Engineering

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Pulsed TV-holography recording for vibration analysis applications

Cited by 20 publications

References 10 publications

Experimental validation of non-contacting measurement method using LED-optical displacement sensors for vibration stress of small-bore piping

Experimental validation of non-contacting measurement method using LED-optical displacement sensors for vibration stress of small-bore piping

Measurement of vibrational energy flow in a plate with high energy flow boundary crossing using electronic speckle pattern interferometry

Heterodyne speckle interferometer for full-field velocity profile measurements of a vibrating membrane by electronic scanning

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