Optical design and evaluation of a three-dimensional imaging and ranging system based on time-correlated single-photon counting.
Authors:
- Gerald BullerGBGerald Buller
- Andrew WalkerAWAndrew Walker
- George SmithGSGeorge Smith
- Sergio CovaSCSergio Cova
- Manickam UmasuthanMUManickam Umasuthan
- Andrew WallaceAWAndrew Wallace
- 20 February 2002
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 41 (6) , 1063-1070
Abstract
The design and operation of a noncontact surface profilometry system based on the time-correlated single-photon-counting technique are described. This system has a robust optomechanical design and uses an eye-safe laser that makes it particularly suitable for operation in an uncontrolled industrial environment. The sensitivity of the photon-counting technique permits its use on a variety of target materials, and its mode of operation does not require the continual presence of an operator. The system described has been optimized for a 1-25-m standoff, has a distance repeatability of <30 microm, and has a transverse spatial resolution of approximately 60 microm at a 2-m standoff and approximately 400 microm at a 13-m standoff.Keywords
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