Comparing laser and polychromatic confocal optical displacement sensors
for the 3D measurement of cylindrical artefacts containing microscopic
grooved structures. [In special issue: Metrology and Properties of Engineering Surfaces]
Comparing laser and polychromatic confocal optical displacement sensors
for the 3D measurement of cylindrical artefacts containing microscopic
grooved structures. [In special issue: Metrology and Properties of Engineering Surfaces]
A scanning system has been developed for measuring the surface of early cylinder mechanical sound
recordings to high precision, both for surface preservation and for post-processing of the data to recover
the sound encoded in the grooves. Research has identified that high sensor axial resolution is required
to resolve the smallest amplitude groove modulations contained on typical cylinder artefacts resulting
in the selection of confocal laser and white light (polychromatic) confocal sensors as suitable sensing
technologies. This paper presents data acquired by the two confocal sensor technologies, comparing the
measured surface profiles with data obtained using a stylus profilometer. We investigate limitations of
the sensors, relating their characteristics to the ongoing development of the scanning system.
non-contact metrology, optical displacement sensor, profilometer, sound recovery
498-501
Boltryk, P.J.
82ca101e-7a14-49b5-8ac9-177a5a739c29
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
15 March 2009
Boltryk, P.J.
82ca101e-7a14-49b5-8ac9-177a5a739c29
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Boltryk, P.J., Hill, M. and McBride, J.W.
(2009)
Comparing laser and polychromatic confocal optical displacement sensors
for the 3D measurement of cylindrical artefacts containing microscopic
grooved structures. [In special issue: Metrology and Properties of Engineering Surfaces].
Wear, 266 (5-6), .
(doi:10.1016/j.wear.2008.04.082).
Abstract
A scanning system has been developed for measuring the surface of early cylinder mechanical sound
recordings to high precision, both for surface preservation and for post-processing of the data to recover
the sound encoded in the grooves. Research has identified that high sensor axial resolution is required
to resolve the smallest amplitude groove modulations contained on typical cylinder artefacts resulting
in the selection of confocal laser and white light (polychromatic) confocal sensors as suitable sensing
technologies. This paper presents data acquired by the two confocal sensor technologies, comparing the
measured surface profiles with data obtained using a stylus profilometer. We investigate limitations of
the sensors, relating their characteristics to the ongoing development of the scanning system.
Text
Comparing_laser_and_polychromatic_conforcal_.....pdf
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More information
Submitted date: 13 April 2007
Published date: 15 March 2009
Keywords:
non-contact metrology, optical displacement sensor, profilometer, sound recovery
Identifiers
Local EPrints ID: 65567
URI: http://eprints.soton.ac.uk/id/eprint/65567
ISSN: 0043-1648
PURE UUID: 6791b4a0-2d61-4a5f-9bc3-1810ba9adaaa
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Date deposited: 24 Feb 2009
Last modified: 14 Mar 2024 02:35
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Author:
P.J. Boltryk
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