Comparing laser and polychromatic confocal optical displacement sensors for the 3-D measurement of cylindrical artefacts containing microscopic grooved structures
Comparing laser and polychromatic confocal optical displacement sensors for the 3-D measurement of cylindrical artefacts containing microscopic grooved structures
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.
Boltryk, P.J.
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Hill, M.
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McBride, J.W.
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July 2007
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.
(2007)
Comparing laser and polychromatic confocal optical displacement sensors for the 3-D measurement of cylindrical artefacts containing microscopic grooved structures.
11th International Conference on Metrology & Properties of Engineering Surfaces, Huddersfield, UK.
16 - 19 Jul 2007.
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Conference or Workshop Item
(Paper)
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.
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Published date: July 2007
Venue - Dates:
11th International Conference on Metrology & Properties of Engineering Surfaces, Huddersfield, UK, 2007-07-16 - 2007-07-19
Organisations:
Mechatronics
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Local EPrints ID: 47128
URI: http://eprints.soton.ac.uk/id/eprint/47128
PURE UUID: 31b4f3ec-f341-4520-a735-1ba76816c3ea
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Date deposited: 26 Jul 2007
Last modified: 12 Mar 2022 02:33
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Contributors
Author:
P.J. Boltryk
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