Measurement of modal damping by electronic speckle shearing interferometry

Wai On Wong; K. T. Chan

doi:10.1016/S0030-3992(98)00024-3

Measurement of modal damping by electronic speckle shearing interferometry

Wai On Wong, K. T. Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

A time-average electronic speckle shearing interferometer (ESSI) has been used for modal damping measurement. This is effected by a new fringe enhancement technique. The damping factor of a cantilever measured by using this technique agrees well with the value measured by using the accelerometer method. The study shows that time-average speckle interferometry can be used as a convenient tool for modal damping measurement.

Original language	English
Pages (from-to)	113-120
Number of pages	8
Journal	Optics and Laser Technology
Volume	30
Issue number	2
DOIs	https://doi.org/10.1016/S0030-3992(98)00024-3
Publication status	Published - 1 Jan 1998

Keywords

Electronic speckle shearing interferometry
Modal damping
Vibration analysis

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1016/S0030-3992(98)00024-3

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abstract = "A time-average electronic speckle shearing interferometer (ESSI) has been used for modal damping measurement. This is effected by a new fringe enhancement technique. The damping factor of a cantilever measured by using this technique agrees well with the value measured by using the accelerometer method. The study shows that time-average speckle interferometry can be used as a convenient tool for modal damping measurement.",

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AU - Chan, K. T.

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AB - A time-average electronic speckle shearing interferometer (ESSI) has been used for modal damping measurement. This is effected by a new fringe enhancement technique. The damping factor of a cantilever measured by using this technique agrees well with the value measured by using the accelerometer method. The study shows that time-average speckle interferometry can be used as a convenient tool for modal damping measurement.

KW - Electronic speckle shearing interferometry

KW - Modal damping

KW - Vibration analysis

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DO - 10.1016/S0030-3992(98)00024-3

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Measurement of modal damping by electronic speckle shearing interferometry

Abstract

Keywords

ASJC Scopus subject areas

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