Publication detail

Differential Colorimetry: A tool for the analysis of fluid film lubrication.

HARTL, M. KŘUPKA, I. LIŠKA, M.

Czech title

Diferenciální kolorimetrie - metoda pro stanovení tloušťky mazacích filmů

English title

Differential Colorimetry: A tool for the analysis of fluid film lubrication.

Type

journal article - other

Language

en

Original abstract

This paper deals with some recent applications of image analysis techniques to film thickness measurement. It aims at listing the main contributions and the identified applications. We will first recall the classical technique of optical interferometry. Then, the main different approaches for the numerical treatment of interferograms are presented. It is shown that these techniques fulfil the requirements mentioned above, opening new possibilities for researchers. In the second part of the paper, applications to various problems are presented. Film thickness measurements performed on a rough static contact, then on a smooth dynamic one, under EHD and thin film regimes, are reported. Finally, from film thickness mapping, we show that it is also possible to evaluate other parameters, such as the pressure that can be determined everywhere in the contact with a very good spatial resolution.

Czech abstract

Článek je věnován aplikaci metod počítačové analýzy obrazu na studium mazacích filmů. Jsou v něm shrnuty dosažené výsledky a ukázán přínos nové metody ve srovnání s optickou interferenčníé metodou. V článku jsou ukázány výsledky získané ve statickém kontaktu mezi tělesy s povrchovými nerovnostmi a rovněž výsledky získané pro elastohydrodynamicky mazané bodové kontakty.

English abstract

This paper deals with some recent applications of image analysis techniques to film thickness measurement. It aims at listing the main contributions and the identified applications. We will first recall the classical technique of optical interferometry. Then, the main different approaches for the numerical treatment of interferograms are presented. It is shown that these techniques fulfil the requirements mentioned above, opening new possibilities for researchers. In the second part of the paper, applications to various problems are presented. Film thickness measurements performed on a rough static contact, then on a smooth dynamic one, under EHD and thin film regimes, are reported. Finally, from film thickness mapping, we show that it is also possible to evaluate other parameters, such as the pressure that can be determined everywhere in the contact with a very good spatial resolution.

Keywords in English

lubrication films, film thickness, interferometry

RIV year

2004

Released

01.10.2002

ISSN

1296-2139

Journal

Mécanique & Industries

Volume

3

Number

6

Pages count

11

BIBTEX


@article{BUT40708,
  author="Martin {Hartl} and Ivan {Křupka} and Miroslav {Liška},
  title="Differential Colorimetry: A tool for the analysis of fluid film lubrication.",
  journal="Mécanique & Industries",
  year="2002",
  volume="3",
  number="6",
  month="October",
  issn="1296-2139"
}