The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON APPLIED AND THEORETICAL MECHANICS
Transactions ID Number: 29-387
Full Name: Luigi Bruno
Position: Assistant Professor
Age: ON
Sex: Male
Address: P. Bucci 44C, 87036 Arcavacata di Rende (CS)
Country: ITALY
Tel: +390984494839
Tel prefix:
Fax: +390984494673
E-mail address: bruno@unical.it
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Title of the Paper: Measuring full displacement fields on scattering surfaces by a portable low-cost interferometer
Authors as they appear in the Paper: Marco Bova, Luigi Bruno, Leonardo Pagnotta, Andrea Poggialini
Email addresses of all the authors: marco.bova@unical.it, bruno@unical.it, pagnotta@unical.it, poggialini@unical.it
Number of paper pages: 11
Abstract: The paper presents a device for measuring full displacement fields working on the principle of speckle interferometry. The proposed interferometer was designed with the aim of obtaining a lightweight self-contained device, easy to assemble with cheap and standard equipment. The investigated area is illuminated by three laser diodes emitting 50 mW at 660 nm, and observed by a B&W firewire CCD camera. The accuracy of the measurements is improved by means of a PZT actuator realized on purpose and driven by a control electronics able to provide a very accurate supply voltage. Furthermore by the control electronics it is possible to turn on and off the diodes and to control the single light intensity of each laser. The paper describes in details all the parts of the interferometer and the systems implemented for optimizing the working conditions of the device. Furthermore all the steps necessary for performing the measurements are reported, and typical sets of experimen!
tal data are shown.
Keywords: speckle interferometry, laser diode, phase-shifting, low-cost, 3D deformation, portable equipment
EXTENSION of the file: .pdf
Special (Invited) Session: A portable DIY speckle interferometer for evaluating 3D deformation fields
Organizer of the Session: 613-350
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