DYNAMIC MICROWAVE SPECKLES AND THEIR APPLICATION TO CONTACTLESS VELOCIMETRY OF VEHICLES

Authors
LAQUA H
Citation
H. Laqua, DYNAMIC MICROWAVE SPECKLES AND THEIR APPLICATION TO CONTACTLESS VELOCIMETRY OF VEHICLES, Measurement science & technology, 6(1), 1995, pp. 4-10
Citations number
16
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Measurement science & technology → ACNP
ISSN journal
09570233
Volume
6
Issue
1
Year of publication
1995
Pages
4 - 10
Database
ISI
SICI code
0957-0233(1995)6:1<4:DMSATA>2.0.ZU;2-Q
Abstract
Irradiating a moving rough surface with a coherent wave produces a spe ckle pattern which moves with a velocity proportional to the object ve locity. This effect is exploited for non-contact velocimetry of vehicl es. In this paper a theoretical description of the diffraction phenome na is given, leading to the dynamic speckle effect. A novel experiment al set-up is demonstrated and the results of velocity measurements in automobiles are discussed.