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Time progression of metrological characteristics of electromagnetic current meters
Březina, Jiří ; Brázda, Martin (referee) ; Žoužela, Michal (advisor)
This experimental diploma thesis investigates the changes in the metrological characteristics of the electromagnetic current meter of velocity. The theoretical part of the thesis includes a brief summary of technical and metrological characteristics of these types of devices. In addition, it describes the tested device, the test track, and the measurement procedure, which consists of two variants: long-term monitoring with a relatively regular monthly measurement interval and short-term monitoring with a regular daily measurement interval. The evaluation of the experimental work focuses on the repeatability and variability of the displayed point speed values and their stability over time. Furthermore, the parameters reported by the meter during long-term and short-term monitoring are compared to each other. The results are also compared with similar experiments.
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Repeatable Torque Load Equipment Design for Vehicle Steering System Testing
Novák, Pavel ; Ludvík, Jan (referee) ; Ramík, Pavel (advisor)
The object of this work is design braking device with high repeatability and reproducibility that is used to analyse the measurement system. I developed this work in cooperation with TRW-DAS Dačice a.s. At the beginning, I made a search of the chassis system, testing of ball joints and steering. Furthermore, I made search of the MSA and the types of braking devices. The rest of the work is focused on the design and the thermal analysis of braking device. Then there are the actual test.
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Measurement and product inspection using 3D manipulator
Klimeš, Petr ; Čala, Martin (referee) ; Beneš, Petr (advisor)
In thesis there is research of 3D scanning methods in order to create method for contact and non-contact scanning of windsurfing boards. There is also research of measuring accuracy and repeatability of 3D manipulators. Repeatability is then measured for given manipulator and contact and non-contact sensors are tested for scanning windsurfing boards. Measured data is processed and compared to original reference data.
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Design of mechanical subsystem of tester for touch screen devices
Kopčil, Tomáš ; Venglář, Vojtěch (referee) ; Krejsa, Jiří (advisor)
Cílem této práce je navrhnout a sestavit systém pro automatizované nepřetržité testování dotykových displejů. Práce je zaměřena na mechanickou část, koncový efektor a motorizaci. Navržený koncový efektor je funkční na kapacitních dotykových displejích, přičemž snímá přítlačnou sílu působící na displej. Pohyb zařízení je zajištěn lineárními pohony s ozubeným řemenem, které jsou polohovány krokovými motory. Pro komunikaci s budiči motorů přes SPI protokol a pro samotné řízení motorů byla vytvořena knihovna zajišťující jejich lichoběžníkový rychlostní profil při pohybu. Sestavený testovací systém byl podroben 24 hodinovému spolehlivostnímu testu, během kterého byla ověřena jeho funkčnost, přesnost a opakovatelnost. Bylo také potvrzeno, že splňuje veškeré požadavky.
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Determination of chlorides in pharmaceutical substances
Čutová, Michaela ; Pharm.Dr.Tomáš Schenk (referee) ; Omelková, Jiřina (advisor)
The topic of this bachelor work is a validation of the method for „Determination of chlorides in pharmaceutical substance“ is made in a form of validation of an analythical method. This titration method with potentiometric indication was developed in a company Sicor and it is used for determination of the residual chlorides volume in the substance called Pemetrexed. Validation is a process which assess suitability of a given analythic system for gaining relevant data (results). Validation constists of four tests: precision, reproducibility, lineraity and test of solution stability, although the test of reproducibility was realized in other laboratory (QC). For determnination of the chlorides was applyed titrator 716 DMS Titrino with argent combined electrode. For a data evaluation were used software tiamo 1.1 and MS Excel.
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