Conferencia
Abstract:
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.
Registro:
| Documento: | Conferencia |
| Título: | New method for real time surface cleanliness measurement |
| Autor: | Bilmes, G.M.; Orzi, D.J.O.; Martínez, O.E.; Lencina, A. |
| Ciudad: | Munich |
| Filiación: | Centro de Investigaciones Opticas (CONICET-CIC), Universidad Nacional de la Plata, La Plata, Argentina Departamento de Física, FCEyN-Universidad de Buenos Aires, CONICET, Bs.As, Argentina Departamento de Física, Universidad Federal de Paraiba, João Pessoa, Brazil |
| Palabras clave: | 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 |
| Año: | 2005 |
| Volumen: | 5856 PART II |
| Página de inicio: | 980 |
| Página de fin: | 986 |
| DOI: | http://dx.doi.org/10.1117/12.612664 |
| Título revista: | Optical Measurement Systems for Industrial Inspection IV |
| Título revista abreviado: | Proc SPIE Int Soc Opt Eng |
| ISSN: | 0277786X |
| CODEN: | PSISD |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v5856PARTII_n_p980_Bilmes |
Referencias:
- Determination of carbon contamination on cold-rolled steel sheets (1985) The Sumitomo Search, 30. , Ford Specification No ESB-M2P117-A
- Rolling oil distillation and thermo-cracking reactions in HNX and 100% H2 annealing (1996) Technical Steel Research Series, , European Commission EUR 18634
- Bilmes, G.M., Martínez, O.E., (1999), "Método para la determinacion de suciedad en superficies".Patent AR990627, Argentina; Bilmes, G.M., Martínez, O.E., Orzi, D.J.O., Lencina, A., Real time surface cleanliness measurement by laser ablation and acoustic detection (2004) 13th International Conference on Photoacoustic and Photothermal Phenomena, , Rio de Janeiro, Brasil
- Orzi, D.J.O., Bilmes, G.M., Identification and measurement of dirt composition of manufactured steel plates by using laser-induced breakdown spectroscopy (2004) Applied Spectroscopy, 58, p. 1475
- Bilmes, G.M., Martínez, O.E., (2000), "Equipo láser para la medición de suciedad en chapas de acero". Patent P00010124, Argentina; Bilmes, G.M., Martínez, O.E., (2003), "Laser Apparatus for measuring dirt density on steel plates" Patent 6.546.784-EEUU; Martinez, O.E., Bilmes, G.M., Orzi, D.J., Seré, P., Pignotti, R.M.A., On line measurement of residual dirt on steel plates by laser ablation and acoustic detection (2002) Surface Engineering, 18, p. 67
- Bilmes, G.M., Martínez, O.E., Seré, P., Musso, R., Orzi, D.J., Pignotti, A., Laser instrument for determination of the degree of cleanliness in cold-rolled steel plate manufacturing (2002) Latin Amer. Applied Research, 32, p. 263A4 - SPIE Europe
Citas:
---------- APA ----------
Bilmes, G.M., Orzi, D.J.O., Martínez, O.E. & Lencina, A. (2005) . New method for real time surface cleanliness measurement. Optical Measurement Systems for Industrial Inspection IV, 5856 PART II, 980-986.http://dx.doi.org/10.1117/12.612664
---------- CHICAGO ----------
Bilmes, G.M., Orzi, D.J.O., Martínez, O.E., Lencina, A. "New method for real time surface cleanliness measurement" . Optical Measurement Systems for Industrial Inspection IV 5856 PART II (2005) : 980-986.http://dx.doi.org/10.1117/12.612664
---------- MLA ----------
Bilmes, G.M., Orzi, D.J.O., Martínez, O.E., Lencina, A. "New method for real time surface cleanliness measurement" . Optical Measurement Systems for Industrial Inspection IV, vol. 5856 PART II, 2005, pp. 980-986.http://dx.doi.org/10.1117/12.612664
---------- VANCOUVER ----------
Bilmes, G.M., Orzi, D.J.O., Martínez, O.E., Lencina, A. New method for real time surface cleanliness measurement. Proc SPIE Int Soc Opt Eng. 2005;5856 PART II:980-986.http://dx.doi.org/10.1117/12.612664
