Simplified laser Doppler distance sensor employing a single fan-shaped interference fringe system for dynamic position and shape measurement of laterally moving objects

Thorsten Pfister; Lars Büttner; Jürgen Czarske

doi:10.1117/12.827500

17 June 2009 Simplified laser Doppler distance sensor employing a single fan-shaped interference fringe system for dynamic position and shape measurement of laterally moving objects

Thorsten Pfister, Lars Büttner, Jürgen Czarske

Author Affiliations +

Proceedings Volume 7389, Optical Measurement Systems for Industrial Inspection VI; 738913 (2009) https://doi.org/10.1117/12.827500
Event: SPIE Europe Optical Metrology, 2009, Munich, Germany

Abstract

We introduce a simplified laser Doppler distance sensor comprising only one single fan-shaped interference fringe system for dynamic position and shape measurement of fast moving objects with micrometer precision. Due to its low complexity, it can be built very compact and cheap, which is crucial for many industrial applications. It will be shown theoretically as well as experimentally that its position uncertainty is in principle independent of the object velocity in contrast to conventional distance sensors. In order to evidence its capability, radial and axial shape measurements of rotating bodies are presented employing a miniaturized sensor setup. An average position resolution of 2.3 μm was obtained.

Citation Download Citation

Thorsten Pfister, Lars Büttner, and Jürgen Czarske "Simplified laser Doppler distance sensor employing a single fan-shaped interference fringe system for dynamic position and shape measurement of laterally moving objects", Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 738913 (17 June 2009); https://doi.org/10.1117/12.827500

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