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Researching the change of the operating frequencies in the case of inequality of the output voltages of the comparator within the structure of an integrating measuring strain gauge converter

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dc.creator Stoyanov, Svilen Hristov
dc.date.accessioned 2018-04-16T19:13:41Z
dc.date.accessioned 2018-07-30T16:25:59Z
dc.date.available 2018-04-16T19:13:41Z
dc.date.available 2018-07-30T16:25:59Z
dc.date.issued 2017-12-28
dc.identifier https://aj-tuv.org/index.php/ajtuv/article/view/45
dc.identifier info:doi/10.29114/ajtuv.vol1.iss1.45
dc.identifier urn:ISSN:2603-316X
dc.identifier.uri http://dspace.tu-varna.bg/handle/123456789/22
dc.description The present research is focused on continuously measuring the variability of the burnishing force during conducting ball-burnishing process for specimens with surfaces with 3D shape, by using CNC milling machine with dual rotary table installed. For measuring the burnishing force and its variability, the specifically developed ball-burnishing tool with miniature force sensor was used. To assess the degree of influence of the main regime parameters on the variability of the burnishing force, the four factors full factorial experiment design with two levels per factor and four replications per run has been carried out. The experimental results are processed statisti-cally and techniques such as Pareto and ANOVA were used after that, for sorting them by degree of significance. Some conclusions about the magnitude and the causes of the obtained variability also are given.
dc.format application/pdf
dc.language eng
dc.publisher Technical university of Varna, Bulgaria
dc.relation https://aj-tuv.org/index.php/ajtuv/article/view/45/20
dc.rights Copyright (c) 2018 Svilen Hristov Stoyanov
dc.rights http://creativecommons.org/licenses/by/4.0
dc.source ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA; Vol 1 No 1 (2017): Annual Journal of Technical university of Varna; 97-104
dc.source ГОДИШНИК НА ТЕХНИЧЕСКИ УНИВЕРСИТЕТ - ВАРНА; Vol 1 No 1 (2017): Annual Journal of Technical university of Varna; 97-104
dc.source ЕЖЕГОДНЫЙ ЖУРНАЛ ТЕХНИЧЕСКОГО УНИВЕРСИТЕТА ВАРНЫ, БОЛГАРИЯ; Vol 1 No 1 (2017): Annual Journal of Technical university of Varna; 97-104
dc.title Researching the change of the operating frequencies in the case of inequality of the output voltages of the comparator within the structure of an integrating measuring strain gauge converter
dc.type info:eu-repo/semantics/article
dc.type info:eu-repoOne of the major errors directly influencing the metrological characteristics of the integrating measuring strain gauge converter is the inequality of the output voltages of the comparator. The current paper explores the effect of the voltages variation at the output of the comparator in the case of a bipolar power supply of the converter. The output data is obtained by modeling the equation of conversion in the MATLAB environment. The fore-mentioned problem is investigated assuming up to 20% inequality of the output voltages compared to the supply voltage and a bilateral change of the load on the strain gauges. A regression analysis is performed checking the suitability of a linear, quadratic and cubic model. It shows that the coefficient of determination is highest for the cubic model and relevant conclusions are made.semantics/publishedVersion


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