National Repository of Grey Literature 155 records found  1 - 10nextend  jump to record: Search took 0.03 seconds. 
Evaluation of Surface Texture Profile Parameters and Verifying of Conformity with the Specification in the Drawing
Houdková, Eva ; Jankových, Róbert (referee) ; Sámelová, Vendula (advisor)
The first part of this thesis investigates current state of the art in the field of surface texture and methods of its evaluation. It also deals with the issue of evaluating surface texture using profile method, including consideration of measurement uncertainties. Subsequently, it is focused on proposing solution of given issue. In the second part of the thesis samples are being measured by contact profilometer and profile parameters values are calculated in the program TalyProfile Lite. The proposed solution was then applied to the measured values of the mean arithmetic height of the roughness profile. This parameter was evaluated according to the proposed combination of standards ČSN EN ISO 4288 and ČSN EN ISO 14 253-1. Evaluated results were then compared with the case where the surface was evaluated only according to the ČSN EN ISO 4288 standard. Thanks to the comparison, it was possible to conclude that the evaluation method according to ČSN EN ISO 4288 is more tolerant than evaluation considering both standards and thus measurement uncertainties.
Measurement Uncertainty Determination and Capability Evaluation during calibration CMM MicroVu
Vanek, Richard ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
The diploma thesis deals with the determination of measurement uncertainty in the calibration of the Micro-Vu Excel 4520 Coordinate Measuring Machine (CMM). The research part of the diploma thesis is focused on the basic terminology used in the field of calibration measurement and on the general characteristics of coordinate measuring machines. The review part is concluded with the characteristics and description of the principle of operation of the CMM Micro-Vu Excel 4520. In the practical part, the diploma thesis first focuses on the selection of suitable standards for the calibration of the aforementioned CMM. Then it describes the performance of individual calibration measurements, which were carried out in the calibration laboratory in the building of the Czech Metrology Institute in Brno. Subsequently, it deals with the identification of individual measurement uncertainties and their evaluation. The thesis concludes with an evaluation of the results obtained, evaluation of CMM capability and recommendations for practice.
TPV handgun clamps
Zahradníček, Adam ; Jankových, Róbert (referee) ; Polzer, Aleš (advisor)
Firearm, chuck, resistance, measurement, construction
The development of mounting optical sights for a sports self-loading pistol
Čaboun, Petr ; Jankových, Róbert (referee) ; Polzer, Aleš (advisor)
This bachelor thesis deals with the development of a mounting interface for reddot sights designed for sports semi-automatic pistols. The aim of this thesis was to design a reliable mounting system that would allow precise, secure, and repeatable placement of the reddot sight on the pistol. The first part of the work focuses on existing mounting systems and identifies key requirements for the solution developed in this thesis. A market survey of collimator sights was also conducted in the first part, and suitable models for installation onto the the mounting interface that will be developed were selected. Subsequently, a design of the new mounting interface, including drawing documentation, was created. In final part the developed mounting interface solution is presented. The result of the work is a mounting interface for reddot sights that enables their installation onto semi-automatic sports pistols.
InSpec Software Programming for SOL311 Optical CMM
Kellerová, Michaela ; Jankových, Róbert (referee) ; Polzer, Aleš (advisor)
This diploma thesis is devoted to the issue of programming in the InSpec software and the evaluation of the achieved measurement results. The theoretical part is devoted to the current state in the area of coordinate measuring machines and the system area focused on the influences acting on user programming. The practical part is devoted to the design of devices intended for measurement and assessment of the achieved measurement results.
Determination of measurement uncertainty of the optical measuring machine using a laser interferometer
Fulová, Silvia ; Jankových, Róbert (referee) ; Šrámek, Jan (advisor)
This final thesis is dealing with stating uncertainty of optical measuring device Micro-Vu Sol 311, which is located at Faculty of mechanical engineering in Brno. Overview of coordinate measuring machines (CMM for short) and analyzed present status of optical CMM is in summation. This part also includes basic metrology concepts and methodology of determination of uncertainty of measuring instrument. Content of following parts of thesis is detailed description of Micro-Vu SOL 311 machine and etalons that were used in determination of enhanced uncertainty of measurement such as gage blocks, laser interferometer and glass scale. Last part of this thesis includes summary of achieved results and recommendations for practice.
Utilization of surface texture evaluation in revolver production
Kolena, Robert ; Šrámek, Jan (referee) ; Jankových, Róbert (advisor)
This diploma thesis addresses the issue of using the evaluation of surface texture in the manufacture of revolver with aplication to a cock. It deals with the detection of imperfections of production operations, the proposal of corrective measures and its implementation. The use of new grinding wheel was chosen as a corrective measure. The Rzmax parameter was used to specify the surface texture after miling and a combination of the Rzmax and Rpmax parameters was used to specify surface texture after grinding.
Measuring probe tips in engineering metrology
Böhm, Jakub ; Harčarík, Matej (referee) ; Jankových, Róbert (advisor)
This diploma thesis deals with measuring touches problems in industrial metrology. Thesis describes adhesive wear and tear which is caused by measuring probes when dynamical measuring is being concluded. Measuring of damaged component made of silumin and its different changes of texture by different measuring probes are evaluated. Measuring touches are made of titanium nitride, silicon nitride, zirconium, bearing chrome steel, ruby, experimental composite material and nanocrystalline diamond.
Quality assurance of pneumatic cylinders
Pabiška, Martin ; Maradová, Karla (referee) ; Jankových, Róbert (advisor)
This Master thesis deals with the requirements for the quality of ISO standard compliant pneumatic cylinders, which are machined and assembled by a local manufacturer. According to the philosophy of continuous improvement, this thesis describes the project to decrease the number of air leaks detected by automatic testing machines. The main benefits of the thesis are the improvement of the design of pneumatic cylinders and the improvement of their assembly procedure leading to a reduction in the number of air leaks from pneumatic cylinders on automatic test equipment. It also provides an overview and general procedure for selecting, analyzing, implementing measures and taking further opportunities to improve the quality management system of pneumatic cylinders in the company.
Online vibration diagnostics of the DATRON milling machine spindle
Kříž, Petr ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
This master’s thesis deals with online vibration diagnostics of the milling machine spindle. It is aimed at the implementation of the complex online vibration diagnostics system to chosen milling machine, the suggestion of the vibration measurement system and the suggestion of the evaluation of changes of the technical condition of this milling machine spindle. The description of the vibration diagnostics, the description of the milling machine spindle construction and function and the suggestions for the practical application of vibration diagnostics are also parts of this thesis.

National Repository of Grey Literature : 155 records found   1 - 10nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.