New method for real time surface cleanliness measurement

The measurement of the surface cleanliness is a problem of great importance in many industrial and technological processes. Existing methods are based on laboratory procedures, they are not performed in real time, they cannot be automated, and usually they are restricted to a small portion of the sa...

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Detalles Bibliográficos
Autores principales:	Bilmes, Gabriel, Martínez, Oscar Eduardo
Publicado:	2005
Materias:	Dirt measurement Laser ablation Laser cleanliness Photoacoustics Automation Calibration Cold rolling Laser pulses Photoacoustic effect Steel Surface cleaning Point size Technological processes Real time systems
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v5856PARTII_n_p980_Bilmes http://hdl.handle.net/20.500.12110/paper_0277786X_v5856PARTII_n_p980_Bilmes
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_0277786X_v5856PARTII_n_p980_Bilmes
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spelling	paper:paper_0277786X_v5856PARTII_n_p980_Bilmes2023-06-08T15:26:25Z New method for real time surface cleanliness measurement Bilmes, Gabriel Martínez, Oscar Eduardo Dirt measurement Laser ablation Laser cleanliness Photoacoustics Automation Calibration Cold rolling Laser ablation Laser pulses Photoacoustic effect Steel Surface cleaning Dirt measurement Laser cleanliness Point size Technological processes Real time systems The measurement of the surface cleanliness is a problem of great importance in many industrial and technological processes. Existing methods are based on laboratory procedures, they are not performed in real time, they cannot be automated, and usually they are restricted to a small portion of the sample. In this work we describe a new method for real time measurement of the amount of dirt deposited on a surface. It relies in the ablation of the dirt film by means of a short laser pulse and the subsequent measurement of the sound emitted. The intensity of the sound results proportional with the amount of dirt and provides a direct measurement of the cleanliness of the surface. The method requires a reference for calibration that was developed based in a uniform distribution of points printed on white paper or a transparent film. The point size and density can be easily modified providing a homogeneous, uniform and reproducible standard for the total amount of dirt measurement. Based on this method, we designed patented (P000101241 -Argentina and 6.546.784 EEUU) and developed the first industrial instrument (ELMES) for on-line determination of the cleanliness degree of manufactured cold rolled steel plate bobbins. Fil:Bilmes, G.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Martínez, O.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v5856PARTII_n_p980_Bilmes http://hdl.handle.net/20.500.12110/paper_0277786X_v5856PARTII_n_p980_Bilmes
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Dirt measurement Laser ablation Laser cleanliness Photoacoustics Automation Calibration Cold rolling Laser ablation Laser pulses Photoacoustic effect Steel Surface cleaning Dirt measurement Laser cleanliness Point size Technological processes Real time systems
spellingShingle	Dirt measurement Laser ablation Laser cleanliness Photoacoustics Automation Calibration Cold rolling Laser ablation Laser pulses Photoacoustic effect Steel Surface cleaning Dirt measurement Laser cleanliness Point size Technological processes Real time systems Bilmes, Gabriel Martínez, Oscar Eduardo New method for real time surface cleanliness measurement
topic_facet	Dirt measurement Laser ablation Laser cleanliness Photoacoustics Automation Calibration Cold rolling Laser ablation Laser pulses Photoacoustic effect Steel Surface cleaning Dirt measurement Laser cleanliness Point size Technological processes Real time systems
description	The measurement of the surface cleanliness is a problem of great importance in many industrial and technological processes. Existing methods are based on laboratory procedures, they are not performed in real time, they cannot be automated, and usually they are restricted to a small portion of the sample. In this work we describe a new method for real time measurement of the amount of dirt deposited on a surface. It relies in the ablation of the dirt film by means of a short laser pulse and the subsequent measurement of the sound emitted. The intensity of the sound results proportional with the amount of dirt and provides a direct measurement of the cleanliness of the surface. The method requires a reference for calibration that was developed based in a uniform distribution of points printed on white paper or a transparent film. The point size and density can be easily modified providing a homogeneous, uniform and reproducible standard for the total amount of dirt measurement. Based on this method, we designed patented (P000101241 -Argentina and 6.546.784 EEUU) and developed the first industrial instrument (ELMES) for on-line determination of the cleanliness degree of manufactured cold rolled steel plate bobbins.
author	Bilmes, Gabriel Martínez, Oscar Eduardo
author_facet	Bilmes, Gabriel Martínez, Oscar Eduardo
author_sort	Bilmes, Gabriel
title	New method for real time surface cleanliness measurement
title_short	New method for real time surface cleanliness measurement
title_full	New method for real time surface cleanliness measurement
title_fullStr	New method for real time surface cleanliness measurement
title_full_unstemmed	New method for real time surface cleanliness measurement
title_sort	new method for real time surface cleanliness measurement
publishDate	2005
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v5856PARTII_n_p980_Bilmes http://hdl.handle.net/20.500.12110/paper_0277786X_v5856PARTII_n_p980_Bilmes
work_keys_str_mv	AT bilmesgabriel newmethodforrealtimesurfacecleanlinessmeasurement AT martinezoscareduardo newmethodforrealtimesurfacecleanlinessmeasurement
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New method for real time surface cleanliness measurement

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