Barbato et al., 1986 - Google Patents
Problems in the measurement of Vickers and Brinell indentationsBarbato et al., 1986
- Document ID
- 17971777875403882082
- Author
- Barbato G
- Desogus S
- Publication year
- Publication venue
- Measurement
External Links
Snippet
Hardness measurements by Vickers and Brinell indentations are liable to error, even when performed by experienced operators. The authors examine the problems involved in such measurements and the standards and specifications under which they are made. They …
- 238000005259 measurement 0 title abstract description 98
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical means
- G01B11/24—Measuring arrangements characterised by the use of optical means for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical means for measuring contours or curvatures for measuring outlines by shadow casting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Instruments as specified in the subgroups and characterised by the use of optical measuring means
- G01B9/04—Measuring microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G02B21/00—Microscopes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3880525A (en) | Method and apparatus for determining the refractive characteristics of a lens | |
DE29813691U1 (en) | Device for measuring and mapping ophthalmic components | |
EP1636542B1 (en) | Method and measuring device for the contactless measurement of angles or angle modifications in objects | |
DE102013203883B4 (en) | Method for measuring an aspherical surface, device for measuring an aspherical surface, device for producing an optical element and optical element | |
Barbato et al. | Problems in the measurement of Vickers and Brinell indentations | |
US6493073B2 (en) | System and method for measuring properties of an optical component | |
EP0848810A1 (en) | Process and device for measuring the optical properties of spectacle lenses by means of an optical detector of engravings in the spectacle lenses | |
KR100453404B1 (en) | Automatic lensmeter and method for measuring refractive power of progressive lens | |
US5815279A (en) | Method and device for optically characterizing a surface | |
RU2680853C1 (en) | Indenter lens | |
AU616573B2 (en) | Hardness testing machine incorporating an image analysis system | |
US5307098A (en) | Projection inspecting machine | |
Carmignato | Experimental study on performance verification tests for coordinate measuring systems with optical distance sensors | |
Brown et al. | Machine vision quantification of internal S-distortion in fused fiber optics | |
Barbato et al. | 27 AUTOMATIC VICKERS INDENTATION MEASUREMENT | |
Guild | Notes on the Pulfrich refractometer | |
Baker et al. | British standard on surface flaws | |
Baker | Automated measurement of surface texture | |
Fowler | Measurement of Progressive Addition Lenses | |
Alekseeva et al. | Investigation of new universal measuring microscopes | |
Neugebauer et al. | EUROMET# 406 Comparison measurements of the diameter of small ring gauges | |
Han | Interferometric techniques applied in packaged MEMS and MOEMS measurement | |
Baker | Characterization and measurement of localized surface quality | |
Baker | Objective standards for surface flaws | |
Bao et al. | Calibration method of microscope and its measurement uncertainty |