Surface roughness measurement through a speckle method

Autor:	Russo, Nélida Araceli, Bolognini, Néstor, Sicre, Enrique Eduardo, Garavaglia, Mario J.
Jazyk:	angličtina
Rok vydání:	1990
Předmět:	speckle method Óptica Acústica real-time measurement
Zdroj:	CIC Digital (CICBA) Comisión de Investigaciones Científicas de la Provincia de Buenos Aires instacron:CICBA
Popis:	An optical approach for real-time measurement of statistical parameters associated with rough surfaces is proposed. Two crossed polarized, partially correlated, speckle patterns originated from a surface under different illumination conditions arc recorded on a linear photodiode array. The r.m.s. surface roughness is related to the correlation degree between both speckle patterns, which in turn is derived by processing the detected intensity distribution. Some experimental results are shown in order to illustrate this technique.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______3056::a0ff83bd2a785dd4234288335c659355 https://digital.cic.gba.gob.ar/handle/11746/1143 Zobrazit plný text záznamu