Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern

Current studies are focused on the correlation between characteristic features extracted from the laser speckle pattern of machined surfaces and 2D surface roughness parameters. Since milled surfaces are 3D in nature, 3D surface roughness parameters will provide a more accurate representation of the...

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Bibliografski detalji
Glavni autori: Suganandha Bharathi Jayabarathi, Mani Maran Ratnam
Format: Članak
Jezik:English
Izdano: MDPI AG 2022-04-01
Serija:Sensors
Teme:
Online pristup:https://www.mdpi.com/1424-8220/22/8/2842
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author Suganandha Bharathi Jayabarathi
Mani Maran Ratnam
author_facet Suganandha Bharathi Jayabarathi
Mani Maran Ratnam
author_sort Suganandha Bharathi Jayabarathi
collection DOAJ
description Current studies are focused on the correlation between characteristic features extracted from the laser speckle pattern of machined surfaces and 2D surface roughness parameters. Since milled surfaces are 3D in nature, 3D surface roughness parameters will provide a more accurate representation of the surface. Novelties of this work are: (1) an inexpensive laser pointer, which was used for presentation and was used without any spatial filtering setup for producing the laser speckle pattern; (2) a correlation study, which was conducted between characteristic features extracted from the speckle pattern and 3D surface roughness; and (3) the influence of angle of illumination, lens aperture size (<i>f</i>-number) and shutter speed on the correlation. A highest coefficient of determination of 0.8955 was obtained for the correlation between the gray level co-occurrence matrix descriptor, namely energy, and 3D surface roughness parameter, namely ten-point height S<sub>10z</sub>, at an illumination angle of 45°, <i>f</i>-number of 16 and shutter speed of 1/100 s.
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spelling doaj.art-dede889ba25241ff9c898a33d58649cf2023-12-03T13:56:29ZengMDPI AGSensors1424-82202022-04-01228284210.3390/s22082842Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle PatternSuganandha Bharathi Jayabarathi0Mani Maran Ratnam1Faculty of Engineering and Computer Technology, AIMST University, Semeling, Bedong 08100, Kedah, MalaysiaSchool of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, MalaysiaCurrent studies are focused on the correlation between characteristic features extracted from the laser speckle pattern of machined surfaces and 2D surface roughness parameters. Since milled surfaces are 3D in nature, 3D surface roughness parameters will provide a more accurate representation of the surface. Novelties of this work are: (1) an inexpensive laser pointer, which was used for presentation and was used without any spatial filtering setup for producing the laser speckle pattern; (2) a correlation study, which was conducted between characteristic features extracted from the speckle pattern and 3D surface roughness; and (3) the influence of angle of illumination, lens aperture size (<i>f</i>-number) and shutter speed on the correlation. A highest coefficient of determination of 0.8955 was obtained for the correlation between the gray level co-occurrence matrix descriptor, namely energy, and 3D surface roughness parameter, namely ten-point height S<sub>10z</sub>, at an illumination angle of 45°, <i>f</i>-number of 16 and shutter speed of 1/100 s.https://www.mdpi.com/1424-8220/22/8/2842surface roughnesslaser specklemilled surface
spellingShingle Suganandha Bharathi Jayabarathi
Mani Maran Ratnam
Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
Sensors
surface roughness
laser speckle
milled surface
title Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
title_full Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
title_fullStr Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
title_full_unstemmed Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
title_short Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
title_sort correlation study of 3d surface roughness of milled surfaces with laser speckle pattern
topic surface roughness
laser speckle
milled surface
url https://www.mdpi.com/1424-8220/22/8/2842
work_keys_str_mv AT suganandhabharathijayabarathi correlationstudyof3dsurfaceroughnessofmilledsurfaceswithlaserspecklepattern
AT manimaranratnam correlationstudyof3dsurfaceroughnessofmilledsurfaceswithlaserspecklepattern