Interferometrical techniques for the investigation of dynamic events

Giancarlo Pedrini; Igor Alexeenko; Wolfgang Osten

doi:10.1117/12.2019053

22 June 2013 Interferometrical techniques for the investigation of dynamic events

Giancarlo Pedrini, Igor Alexeenko, Wolfgang Osten

Proceedings Volume 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013); 876915 (2013) https://doi.org/10.1117/12.2019053
Event: International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 2013, Singapore, Singapore

Abstract

The availability of high resolution CCD and CMOS sensors together with the increasing computer capacity have enabled the development of different interferometrical techniques (speckle interferometry, digital holography, digital sherography) which are well suited for real time measurements. Two or more interferograms are recorded on a digital sensor at different times and the deformation of the object occurring between the exposures is calculated from the phase change. Since the process to investigate can be very fast we cannot use the well-known temporal phase shift method for the determination of the phase but we use a spatial carrier method which allows to determine that phase from one single hologram. We will show that this method can be used as well for shearography. Applications of digital holographic techniques for the investigation of vibrations, defect detection in mechanical structure and time resolved measurement of deformation of microelectromechanical systems (MEMS) are presented together with some investigation of mechanical structures by using digital shearography with spatial carrier.

Citation Download Citation

Giancarlo Pedrini, Igor Alexeenko, and Wolfgang Osten "Interferometrical techniques for the investigation of dynamic events", Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 876915 (22 June 2013); https://doi.org/10.1117/12.2019053

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Digital holography

Holograms

Microelectromechanical systems

Charge-coupled devices

Sensors

Shearography

Beam splitters

Show All Keywords

Keywords/Phrases

Search In:

Publication Years