Holographic And Speckle Interferometry In The UK A Review Of Recent Developments

D. W. Robinson

doi:10.1117/12.941716

17 February 1987 Holographic And Speckle Interferometry In The UK A Review Of Recent Developments

D. W. Robinson

Proceedings Volume 0814, Photomechanics and Speckle Metrology; (1987) https://doi.org/10.1117/12.941716
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

From its inception, the technique of holographic interferometry has been continuously developed within the UK. Non-destructive testing (NDT) and metrological applications of holography have grown over the last 20 years, with major contributions coming from NPL, Loughborough University, Rolls Royce Advanced Research Laboratory and many others. More recently the technique of Electronic Speckle Pattern Interferometry (Electro-Optic Holography) has added to the list of available methods and given a spur to holographic metrology in industry. This paper will review recent developments within the UK, in optical systems and data analysis techniques (for both holographic and speckle interferometry). These are promising to provide the mechanical engineer with commercial products based on automated non-contacting optical measurement systems, for applications in industrial design and testing. Important developments include the use of fibre optics, CCD cameras, speckle averaging, heterodyning, 3-D deformation and strain measurement, together with a range of fringe analysis techniques. These will be discussed within the context of typical applications of holographic interferometry in the UK. Finally a view to the future will be given.

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D. W. Robinson "Holographic And Speckle Interferometry In The UK A Review Of Recent Developments", Proc. SPIE 0814, Photomechanics and Speckle Metrology, (17 February 1987); https://doi.org/10.1117/12.941716

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KEYWORDS

Holography

Fringe analysis

Holographic interferometry

Phase measurement

Speckle

Speckle interferometry

Software development

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