Abstract

A technique for fast measurements of the distance to an object’s surface based on spatial filtering of dynamic speckle patterns is proposed. Exploitation of two spatial filters (Ronchi rulings) enables measurements to be independent of surface speed. Experimental verification of the technique is demonstrated at speeds of the surface as high as 50 m/s. The technique may find applications in machine-vision systems for acquisition of three-dimensional images and in control systems for on-line monitoring of fast-moving parts of industrial machines.

© 2005 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Accuracy and resolution of a dynamic-speckle profilometer

Dmitry V. Semenov, Ervin Nippolainen, and Alexei A. Kamshilin
Appl. Opt. 45(3) 411-418 (2006)

Distance sensing to rough semitransparent and multiscattering materials using dynamic speckles

Dmitry Semenov, Igor Sidorov, and Ervin Nippolainen
Appl. Opt. 48(28) 5266-5273 (2009)

Fiber-optic sensor for distance and velocity measurements using speckle dynamics

Yoichi Kitagawa and Akihiro Hayashi
Appl. Opt. 24(7) 955-959 (1985)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription