Design and performance analysis of an optical profilometer for stand-off control

A prototype non-contact high-bandwidth optoelectronic probe for surface topology and laser materials processing stand off control is presented. Radiation from a low power laser beam is focused onto a workpiece surface; the spatial variation in the reflected irradiance is modelled. A Gaussian beam an...

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Veröffentlicht in:	Measurement science & technology 1994-05, Vol.5 (5), p.517-525
Hauptverfasser:	Abdullah, H A, Chatwin, C R
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Industrial metrology. Testing Instruments, apparatus, components and techniques common to several branches of physics and astronomy Mechanical engineering. Machine design Non-destructive testing: methods and equipments Optical instruments, equipment and techniques Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A prototype non-contact high-bandwidth optoelectronic probe for surface topology and laser materials processing stand off control is presented. Radiation from a low power laser beam is focused onto a workpiece surface; the spatial variation in the reflected irradiance is modelled. A Gaussian beam and radiometric system model are investigated and compared with experimental results. The profilometer performed well on mild steel, galvanized steel, stainless steel, aluminium, nickel and rubber. (Original abstract-amended)
ISSN:	0957-0233 1361-6501
DOI:	10.1088/0957-0233/5/5/009