If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Highly improved range sensing – by reduction of spatial coherence

$30.41 plus tax (Refund Policy)

Buy Article:


Abstract: Optical range sensors based on triangulation are widely used for the shape measurement of optically rough objects. The origin of the achievable measuring uncertainty of the distance is speckle noise. Speckle noise is unavoidable in spatially coherent systems. We demonstrate two experiments which prove that without spatial coherence, the measuring uncertainty can be dramatically reduced, and we present an on-line 3D-sensor for laser-material processing, exploiting this knowledge.

Keywords: Optical metrology; coherent noise; distance measurement; laser material processing; triangulation

Document Type: Original Article

DOI: http://dx.doi.org/10.1078/0030-4026-00058

Affiliations: Lehrstuhl für Optik, Universität Erlangen, Staudtstrasse 7/B2, 91058 Erlangen, Germany

Publication date: July 1, 2001

Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more