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This article describes a methodology for alignment of the 2D laser triangulation scanning system in one working plane using a set of calibration gauges. This calibration is necessary for correct function of measurement system. The article describes the impact of offset angles of gauges or measure objects on measurement accuracy and method to align gauges to the measurement axis. The goal of this align...
This paper describes procedure of development and testing of the High speed current sensing system (HSCSS). There are two possible ways how to precisely measure high speed current during the process of CMT (Cold Metal Transfer) welding. The first one is based on the coupled IC devices consisting of a low-offset linear Hall circuit. The second sensor is based on current transducer where measurement...
This contribution describes procedures and results obtained at the Department of Control Systems and Instrumentation of the VŠB-Technical University of Ostrava during research and mathematical modelling of variable pitch systems behavior. The wiring scheme and control strategy of the electronic variable pitch drive mounted on new testing stand are presented. Ability of machines to fly had been based...
The article describes proven methods for MS SQL Server Express which automatically keep the latest data in the primary database, while older data are transferred into dynamically created databases. The system was deployed in Třinecké Železárny a. s. where the data older than 30 days is kept in the primary database, and older data is transferred into databases that were dynamically created for each...
This article describe a mathematical background of calculating volume of Wood Chips that is measured by a laser scanning method during transport on Conveyor Belt. This method is realized in company Biocel Paskov a. s.
The paper deals with industrial application of the system for measuring longitudinal deformations when welding thick-walled vessels, which is necessary to protect the weld and welded parts. Heating of the material leads to its expansion, which may for example damage the anchorage of parts, or cause collapse of the weld. To compensate the deformation it must be applied pretension, which size cannot...
This paper deals with description of problem with nonlinearity of 2D triangulation scanners based on oscillating mirrors, used in system for measurement of diameter and ovality of the rolled tubes. It shows attempts to field software calibration of scanners, based on multiple measurements of calibration devices and comparison between measured data and required shape.
The accessibility evaluation of public transport is based on commuting conditions in the Czech Republic, where still a significant part of jobs are organised in 2 or 3 work shifts. The usual indicators in such conditions suffer from time of day dependency. The analysis of time dependency is provided for commuting between Czech municipalities for several working time intervals. To conduct such a research,...
This article describes the improvement of the calibration section of gas cylinders filling plant using a system for collecting data from the gas analyzers and other sensors. The system replaces manual inspections of values measured by set of analyzers and their comparison with values from data sheets and automates subsequent manual entry in the list and accompanying tables. The system consists of...
Unemployment represents one of the key social and economical issues of the current world. The Integrated Portal of the Ministry of Labor and Social Affairs of the Czech Republic supports unemployed people to find a proper job using various useful tools. Any user can find a job according various criteria. The existence of public transport connection between municipality of residence and municipality...
This article deals with the description of development of control applications for the hard real-time operating system Phar Lap intended for embedded systems. The system consists of a laboratory model of levitation of ferromagnetic object in an electromagnetic field, a control PC with performance of an embedded industrial PCs and a remote PC connected to the control PC through TCP/IP. Control PC is...
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