The Centerless Measurement of Roundness with Optimal Adjustment

Yalovoy, O A; Захаров, О. В.; Кочетков, А. В.

doi:10.1088/1757-899x/93/1/012024

Cited by 16 publications

(3 citation statements)

References 8 publications

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“…Based on International Standard, there are several methods to determine the roundness value from a polar graph measurement result (ISO 4291, 1985;ISO 6318, 1985 (Juhanko, 2011;Reeve, 1979). Some journals stated that LSC method gives more accurate roundness value than the other methods (Piengbangyang, Somthong, Buajarern, & Tonmueanwai, 2009;Reeve, 1979;Yalovoy, Zakharov, & Kochetkov, 2015;Zakharov & Brzhozovskii, 2006).…”

Section: B Theorymentioning

confidence: 99%

Effect of Stylus Position Shiftings to Eccentricity and Roundness Value in Glass Hemisphere Measurements

Kartika¹,

Rahman²,

Nugraha

2017

instrum.

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In this research, the testing of the effect of stylus position shifting to eccentricity on hemisphere roundness measurement was done in Research Center for Metrology LIPI (RCM-LIPI). The effect would give the acceptable eccentricity value for center adjustment of hemisphere. Least Square Circle (LSC) data fitting and Gaussian filtering were used in data processing. The result showed that the roundness values were constant until 3.3 µm shifting value with 3.23 µm in eccentricity. However, it started to increase significantly when the eccentricity value reached above that, so it gave an uncertainty contribution to the hemisphere measurement.

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Section: B Theorymentioning

confidence: 99%

Effect of Stylus Position Shiftings to Eccentricity and Roundness Value in Glass Hemisphere Measurements

Kartika¹,

Rahman²,

Nugraha

2017

instrum.

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“…Therefore, it is advisable to follow the ISO 16610-1:2015 standard and the analogy with the problems of measuring roundness and roughness, considered in [6][7][8][9]. So to measure the roughness, Gaussian linear filter is used [10], and for roundness -harmonic analysis based on the Discrete Fourier Transform (DFT) [11]. There are two types of filtration -spatial and temporal.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the applicability of filtration methods for coordinate measurements

2018

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At present, surface metrology solves such important tasks as monitoring the production process and optimizing the exploitation of parts. A significant part of the measurements is performed by a contact method using Coordinate Measuring Machines. One of the important steps in the processing of measurement information is the filtration of the received signal. The existing standards regulate only the processes of measuring roundness and roughness. Therefore, researches on the applicability of filtration methods in the general case for coordinate measurements are relevant. Based on the review presented in the article, the filters that have received the greatest application in other fields of technology are defined by the strategy of their application for coordinate measurements. It is recommended to use the following sequence: elimination of gross errors based on the Grubbs’ test, discrete Fourier transform for revealing systematic errors, elimination of systematic errors from the signal, minimization of the random error with the bilateral Gaussian filter, surface reconstruction after filtering based on inverse Fourier transform. The above example of signal filtering for flatness confirmed the effectiveness of the proposed approach.

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“…The solution of this problem is devoted to leading companies and scientists [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. They generally, relate to the technological problems of building new types of measuring machines.…”

Section: Introductionmentioning

confidence: 99%

Mathematical models for estimating the degree of influence of major factors on performance and accuracy of coordinate measuring machines

2017

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Abstract. Increased productivity of Coordinate Measuring Machines, while providing given level of accuracy, is complex and actual problem of robotics and metrology. Therefore, this article provides a set of mathematical models that allow for prediction of values for performance and accuracy of advanced Coordinate Measuring Machines based on system dynamics method. The analysis of scientific literature and statistical data of exploitation CMMs Global Performance (DEA, Italy), CMM-750 (Lapik, Russia), FARO Arm 9 (FARO Technologies, USA) has identified 25 major factors of the process control and their mutual impact. Of the 16 basic factors are internal system parameters, 6 input actions and 3 external factors. As a result of the system analysis of the research object identifies the main characteristics of coordinate measuring machines that affect performance and measurement accuracy. We have done a general graph of causal relationships between modeled characteristics, on the basis of which is made up and numerically solved a system of nonlinear differential equations. In developing this system of equations is used in statistical data describing the cause-effect relationship between the internal model parameters and environmental factors. These solutions make it possible to practically interpret developed models and methods of system dynamics used in solving the problem.

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The Centerless Measurement of Roundness with Optimal Adjustment

Cited by 16 publications

References 8 publications

Effect of Stylus Position Shiftings to Eccentricity and Roundness Value in Glass Hemisphere Measurements

Effect of Stylus Position Shiftings to Eccentricity and Roundness Value in Glass Hemisphere Measurements

Analysis of the applicability of filtration methods for coordinate measurements

Mathematical models for estimating the degree of influence of major factors on performance and accuracy of coordinate measuring machines

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