A system based on digital holographic interferometry for the measurement of vibrations is
presented. A high-power continuous laser (10 W) and a high-speed CCD camera are used …

Optical Methods of Measurement: Wholefield Techniques, Second Edition provides a
comprehensive collection of wholefield optical measurement techniques for engineering …

The digital image correlation method is extended to the study of transient deformations such
as the one associated with a rapid growth of cracks in materials. A newly introduced rotating …

Speckles are inherently an interference phenomenon produced when an optically rough
surface or a turbulent medium introduces some degree of randomness to a reflected or a …

Deep surrounding rocks contain a network of longitudinally intersecting fissures. Exploration
of their fracture process zone (FPZ) size evolution during mixed loading and fracture surface …

We describe a phase-shifting out-of-plane speckle interferometer operating at 1 kHz for
studying dynamic events. The system is based on a Pockels cell that is synchronized to a …

This paper provides an overview of recent developments and applications of high-speed
electronic speckle pattern interferometry (ESPI) and related techniques ranging from high …

This paper describes a digital holographic setup based on in-line holography and a high-
speed recording to get a multipoint vibrometer. The use of a high-speed sensor leads to …

A method for recording and evaluating digital image-plane holograms is presented.
Hundreds of holograms of an object that has been subjected to dynamic deformation (eg …

This paper reports results of full field vibration measurements conducted on a laboratory test
case, a cantilever beam, submitted to a transient excitation using an impact hammer. The …