Holographic interferometry is one of the most useful applications of holography. It allows
measurement of the phase of an object or a scene, which evolves over time. In particular, it …

The aerospace and automotive industries have been developing and the demand for non-
destructive testing (NDT) of composite materials used by these two fields is increasing day …

A system was developed that allows different acoustic parameters to be measured inside the
frequency audio range and that can be used in different propagation mediums. A simple …

Optical devices cannot directly obtain the deformation for welding residual stress (WRS)
measurement since it is difficult to get the surface characteristic with a high accuracy of …

Surface defect or damage is one of the critical factors leading to the failure of engineering
materials and structures. The methodologies for the measurement of surface shape and …

Laser scattering from the thin film surface develops self-interference speckle images, which
are treated by image processing. As a result, circular fringes are formed due to the phase …

A novel radio-interferometric measurement method for tracking applications is proposed.
Fixed radio transceiver nodes are used to generate interferometric signals, allowing the …

When used as samples cells for optical absorbance measurements, integrating spheres
offer increased pathlengths compared to single pass cells combined with tolerance to …

Tunable optofluidic lenses, ranging from in-plane micro-lenses to bulky out-of-plane lenses,
were the subjects of research and analysis with much interest over the past decade …

Low-velocity impact in carbon fibre reinforced polymer (CFRP) is known as a major reason
for failure in aerospace structures. To evaluate defects in CFRPs, nondestructive testing …