Abstract The use of microcomputers for processing surface profiles from stylus instruments has resultedin the availability of a great deal of information. However, a functional databank does not existyet to assist the designer in the selection of proper surface finishes for different applications. Theuse of computers for analyzing surface profiles has also resulted in a…
Abstract In recent years there has been a proliferation of parameters with which to specify surface texture. Some of these parameters are useful, but most are not. The result of this rash is confusion and expense. In this paper the cause of the growth of such parameters is identified and ways of minimizing it are…
Abstract The surface profile of the Well known surface of a PTB roughness standard has beenrecorded by several methods and the results have been compared. The result of the contactstylus method, in particular that using a very small tip radius, is in good conformity with thatdeduced from SEM stereo images. The optical methods, ie laser…
Abstract Optical techniques have great potential for non-destructive and on-line measurements of surface roughness during manufacturing. This paper reviews the state-of-the-art in a number of optical techniques including specular reflectance, total integrated scatter, diffuseness, angular scattering distributions, speckle, ellipsometry, and interferometry. The distinction is drawn between the more quantitative but slower profiling techniques and less…
Abstract Optical methods are increasingly used for measurement of surface texture, particularly for areal measurements where the optical methods are generally faster. A new Working Group under Technical Committee (TC) 213 in the International Organization for Standardization is addressing standardization issues for areal surface texture measurement and characterization and has formed a project team to…
Abstract This review gathers together 15 special topics in modern interferometric metrology representing a sampling of historical, current and future developments. The selected topics cover a wide range of applications, including distance and displacement measurement, the testing of optical components, interference microscopy for surface structure analysis, form and dimensional measurements of industrial parts, and recent…
This paper deals with a non-contact, optical measuring method which unitesthe assessment of roughness form and waviness in one single instrumenL Themethod is based on the deflection of light which leads to a more or less broadscattered light distribution in the case of roughness and to a shift of the totaldistribution curve due to waviness…
Abstract This paper presents an internet based surface texture analysis and information system, which appliesJava and internet technology to engineering metrology. The system includes most of the standardized andadvanced analysis tools and a database for surface texture. The most distinct feature of this system is thatit can run on the internet, which enables platform independent…
Abstract This paper describes a technique which can characterize the surface lay structure contained within a three-dimensional surface map. The technique is based on a generally known fact, that two, closely spaced, parallel profiles will appear shifted whenever the dominant lay direction is not perpendicular to the profile direction. The cross-correlation function is utilized to…
This article describes and evaluates the focus variation method, an optical 3D measurementtechnique. The goal is to analyse the performance of the method on a series of typical measurement tasksincluding roughness measurements, form and wear measurements. First, a comparison of roughnessmeasurements between the proposed method and a tactile device on a newly developed roughness standardis…
A review article Abstract Some important types of instrumentation for measuring surfaces both past and present are reviewed. Exhaustive lists of instruments and performance are not presented; rather more emphasis is placed on the philosophy of measurement. An attempt is made to classify the surface features and also the function of surfaces as a pre-requisite…
Abstract An overview of the contribution of the members of the C.I.R.P. community to the progress of Metrology andSurface Roughness Quality Evaluation is given. The following items are included in the part on metrology: briefoverview of the existing situation before 1950, contribution to the successive definitions of the unit of length andrelated reference length standards,…
