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Optical measuring instrument SOL 311
Kellerová, Michaela ; Šrámek, Jan (referee) ; Jankových, Róbert (advisor)
The main benefit of this bachelor thesis is the assessment of conformity with the specification in accordance with the ISO GPS system. In the theoretical part, coordinate measuring machines were discussed with emphasis on multisensor measuring machines. The practical part is focused on the evaluation of measured values of components on the CMM SOL 311 according to the standard ČSN EN ISO 14253-1: 2018.
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Proposal of internal methodology for measurement of products and parts on CMM UPMC Zeiss at CMI Brno
Hájková, Alena ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
This diploma thesis deals with the proposal of internal methodology for measurement of products and parts on CMM UPMC Zeiss at CMI Brno. The first part of this work analyzes the current state of knowledge in the field of accurate measurement on coordinate measuring machines (CMM), which includes the definition of basic metrological concepts, methodology for determining and expressing uncertainties of measurement and a general description of CMM. The diploma thesis also contains a detailed description of the UPMC 850 CARAT S-ACC device from the company Zeiss and summarizes the requirements for the testing laboratory in accordance with the standard ČSN EN 17 025: 2018. The next part of the work is focused on defining and determining the measurement uncertainties for this CMM and on developing a testing procedure for measurements on this machine. The final part of this thesis summarizes the achieved results and recommendations for practice.
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Calibration of Alicona Infinite Focus 4 microscope
Sloboda, Tomáš ; Šrámek, Jan (referee) ; Harčarík, Matej (advisor)
This master´s thesis deals with calibration and determination of uncertainties of measurement for focus variation microscope Alicona Infinite Focus G4. Together with calibration, a measurement of chosen parameters with calculation of measurement uncertainties of a component was realised. The thesis also describes the whole calibration process and terminology used in calibration, as well as the calibrated instrument, it´s parameters and usage in practice. The measurements were realized on premises of Intemac Solutions s.r.o. Obtained data were than processed using MS Excel, Gwyddion and TalyMap software. At the end of the thesis, practical recommendations are formulated.
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Introduction of measurement methodology using 3D scanning technology into mechanical production
Klein, Adam ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
This thesis focuses on comparison of the commonly used method of tactile measurement with 3D scanning methods for their introduction into engineering production. The first part summarizes the current state with the description of measurement technologies with emphasis on 3D technologies and their versatile use. The second part presents a practical comparison of three types of measuring devices on a selected component of a bicycle. After numerical and graphical evaluation of the measurement results, these values are further statistically processed and the measurement uncertainties are calculated. The final part of the work evaluates the whole process and presents practical suggestions, options and recommendations.
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Implementation of selected parts of the ČSN EN ISO/IEC standard 17025:2018 in the calibration laboratory
Krejčí, Lukáš ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
In this diploma thesis comparison of the current state against the requirements of the standard ČSN EN ISO/IEC 17025: 2018 is made at first. The comparison is followed by proposals for the creation of the missing documents which will become part of the controlled documentation of the selected calibration laboratory in the future and will be used to obtain accreditation. These documents are focused specifically on process management of the calibration laboratory and the procedure for determining uncertainty of measurement in calibration. Proposals are created in a way to match the specifications of standard ČSN EN ISO/IEC 17025: 2018. In the conclusion chapter of this thesis there are recommendations for calibration laboratory which should be considered before applying for accreditation.
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Standards for measuring plane angle and shape deviations on CMM
Lipták, Matúš ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
The presented diploma thesis deals with the issue of selecting suitable standards for measurement of plane angle and shape deviations on coordinate measuring machines. As for the shape deviations, the characteristics of straightness and roundness have been processed in this thesis. The selected standards are then used to calibrate chosen CMMs, including the optical CMM SOL 311 and the articulated arm AACMM Hexagon Absolute Arm 83 Compact. The thesis also includes general theoretical knowledge in the field of metrology and the current state of measurement using CMMs. The experimental part is focused on carrying out the measurements during CMM calibration, followed by the identification and quantification of individual uncertainty components. Finally, the obtained results of the measured geometrical characteristics on individual CMMs are evaluated and compared with each other.
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Methods of workpieces measurement
Verevkina, Aleksandra ; Šrámek, Jan (referee) ; Marek, Tomáš (advisor)
This bachelor's thesis focuses on the measurement of geometric tolerances of workpieces.In the first part, international ISO GPS standards, terminology from the metrological dictionary and used measuring devices are examined. In the practical part, comparative tests for three measuring devices and analysis of the obtained results are carried out.
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Accuracy of engineering products in manufacturing
Škoda, Zdeněk ; Šrámek, Jan (referee) ; Jankových, Róbert (advisor)
The bachelor thesis deals with the precision of engineering products in high-volume custom manufacturing. Engineering metrology has undergone significant innovations in recent decades to unify the evaluation approaches of quality and accuracy of engineering products. The main contribution of the thesis is a proposal for the implementation of new procedures in the quality control process in the company. To justify the introduction of the new philosophies into the existing processes used in the collaborating company, the thesis includes experiments in which the differences between the old and new approaches are compared. Based on the evaluation of the experiments, measures suitable for implementation are recommended.
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Visual Composition in Time
Kaláb, Jaroslav ; Baloun, Vít (referee) ; Šrámek, Jan (advisor)
Bachelor's thesis is a short subjective document, that is made up of my own footage, which I have been collecting for a long time until now. It captures the physical and social environment in which I have been moving in recent years. Through them, I try to portray my feelings about these environments, about constant movement through them and in general about neverending traveling in space-time. It is my way of thinking about where my safe space is, if it is one place or if there are more of them, or if I feel the best at the moment, when I travel and I am not grounded in any place.
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The Book
Novotná, Barbora ; Šrámek, Jan (referee) ; Vaněk, Vojtěch (advisor)
The bachelor's thesis deals with creating an author's book, which, thanks to the absence of any text or illustration, balances the border between an object, a toy and its book form. Thematically, it deals with the play of light and shadow, fragility, delicacy and interactivity, which are processed using spiderwebs, and presented in an atlas format. The individual webs are sewn into the paper. When opened, a three-dimensional (pop-up) effect emerges, which in a light source forms another web of thin shadows that change when the book is being manipulated.
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