This master‘s thesis deals with temperature measurement in industrial environment. The first part of this thesis is aimed at studing basic principles of temperature measurement using resistive temperature detectors. Next parts describe design and practical implementation of inteligent temperature transmitter with digital output RS485. This incudes detailed design of circuit solution, printed circuit board, firmware for used microcontroller and user‘s software for personal computer. The second part studies basics of the comunication standard Ethernet (IEEE 802.3), it discusses nowadays possibilities of Ehternet implementation to industrial trasmitters. Last parts of the thesis are aimed at design and practical realization of Ethernet communication module.

The objective of this thesis is a design of the amateurish wireless weather station which is used to measure temperature, relative humidity, barometric pressure and velocity and direction of air flow. Part of this thesis also describes design of a device intended for display, processing and storage of actual measured data obtained from weather station.

This master’s thesis deal with principles temperature measurement using resistive temperature sensor PT100 and algorithm design PSD controler. In Work is includ description problems temperature measurement and way evaluation by means of mikrokontroler, which by PWM output controls supplied heat power. Next is here described method realization controls device for heating electric furnace with setup via Ethernet.

The first part of the master thesis is focused on theoretical analysis of the problems of diagnostics of an electric arc physical properties. In the thesis there is shown identification of spectral lines in experimentally measured electric arc spectra. The thesis deals also with energy balance of the arc. Next part of thesis is aimed to theoretical analysis of effects of electric arc on construction materials of low voltage electric apparatuses. The main part of thesis is devoted to experimental measurement of arc radial temperature changes, measurement of cathode temperature and research of electrical arc effect on selected construction materials of low voltage apparatuses.

Contactless measuring of surface temperature integration in the other measurement methods and their assimilation at evaluation of surface temperature of a semi-finished product bored by various tools is the target of the work. An impassable opening is being bored by these tools. The opening is close to a scanned wall. The semi-finished wall temperatures are being scanned by thermocamera and subsequently compared for every single used tool in this experiment.

The subject of this thesis is the incorporation of the contactless temperature measurement of surface temperatures among other methods of temperature measurement with the analysis of (individual) advantages and disadvantages. The study is focused on the measurement and finding alternative protective clingfilms for thermo camera “Flir SC2000” and possible ways of their usage.

This Master's theses deals with the contactless measurement of surface temperatures and incorporates it among other methods of temperature measurement. For practical experiments were used infrared camera ThermaCAM SC 2000 from producer FLIR. The experiment was focused on the area of manufacturing technology – milling. Have been investigated effects of different cutting conditions on the surface temperature of the machined sample and the results are expressed mainly in the charts.

We present a comprehensive comparison of electrical properties of differently fabricated high quality Schottky contacts on ZnO thin films grown by pulsed laser deposition. Thermally evaporated Pd/ZnO Schottky contacts exhibit ideality factors as low as 1.06 due to their high lateral homogeneity. The effective Richardson constant determined using these homogeneous contacts is (7.7±4.8)A cm−2 K−2 close to the theoretical value of 32 A cm−2 K−2. However, their rectification ratio is at most five orders of magnitude due to their comparably small barrier height (≈0.7eV). The largest effective barrier height (1.11 eV) and rectification ratio(7×1010) was obtained for reactively sputtered PdOx/ZnO Schottky contacts. Eclipse pulsed laser deposited IrOx/ZnO Schottky contacts were found to combine very good lateral homogeneity (n≈1.1), with a reasonably large barrier height (0.96 eV) and large rectification ratio (≈9 orders of magnitude). Our results for differently fabricated Schottky contacts suggest that the barrier formation is highly dependent on the presence of oxygen vacancies close to the interface and the different compensation mechanisms involved.

Temperature can be estimated by acoustic propagation time measurements along known sound paths. By using a multitude of known sound paths in combination with a tomographic reconstruction technique a spatial and temporal resolution of the temperature field can be achieved. Based on it, this article focuses on an experimental method in order to determine the spatially differentiated development of room temperature with only one loudspeaker and one microphone. The theory of geometrical room acoustics is being used to identify sound paths under consideration of reflections. The propagation time along a specific sound path is derived from the room impulse response. Temporal variances in room impulse response can be attributed primarily to a change in air temperature and airflow. It is shown that in the absence of airflow a three-dimensional acoustic monitoring of the room temperature can be realized with a fairly limited use of hardware. / Die Temperatur kann mithilfe von akustischen Laufzeitmessungen auf definierten Schallstrecken ermittelt werden. Der Einsatz multipler Schallstrecken, in Verbindung mit einem tomografischen Rekonstruktionsverfahren, erlaubt eine räumliche Auflösung der genannten klimatologischen Größe. Aufbauend darauf, befasst sich dieser Artikel mit einer experimentellen Methode zur Erfassung der räumlich und zeitlich aufgelösten Entwicklung der Raumtemperatur mit lediglich einem Lautsprecher und einem Mikrofon. Die Theorie der geometrischen Raumakustik wird genutzt, um Schallstrecken, unter der Berücksichtigung von Reflexionen, zu identifizieren. Die zu den Ausbreitungswegen gehörenden Laufzeiten werden aus einer gemessenen Raumimpulsantwort abgeleitet. Zeitliche Varianzen in Raumimpulsantworten sind in erster Linie auf die Veränderung der Lufttemperatur und von Strömungsverhältnissen zurückzuführen. Es wird gezeigt, dass bei Abwesenheit von Raumluftströmungen, eine dreidimensionale, akustische Überwachung der Raumtemperatur mit einem sehr geringen Einsatz an Messtechnik realisiert werden kann.

Profiles of broadband terrestrial radiation from airborne pyrgeometer measurements aboard research aircraft Polar 5 obtained during the VERDI campaign in 2012 were used to derive vertical temperature profiles. The retrievals were performed utilizing radiative transfer simulations by libRadtran (Mayer and Kylling, 2005). Manually changing the temperature of the input file for the simulations resulting calculated profiles of terrestrial irradiance were compared with measured profiles and iterated until best agreement. The selected test case shows the possibility of this technique and reveals several possible improvements. The algorithm has to be optimized to adapt the modelling temperature profile automatically using least-square error minimization between measured and modelled irradiance profiles. Additionally the vertical resolution has to be increased to consider small-scale variations. Using humidity and pressure profiles from ground-based observations and nearby radiosoundings significantly improves the retrieved temperature profiles. / Vertikalprofile der breitbandigen terrestrischen Strahlung von flugzeuggetragenen Pyrgeometermessungen an Bord des Forschungsflugzeuges Polar 5 während der VERDI Kampagne in 2012 wurden genutzt, um Vertikalprofile der Temperatur abzuleiten. Das Retrieval erfolgte mit Hilfe von Strahlungstransfersimulationen unter der Verwendungung von libRadtran (Mayer and Kylling, 2005). Dazu wurde die Temperatur der Modellatmosphäre variert, bis eine bestmögliche Übereinstimmung von gemessenem und modellierten Irradianzprofil erzielt wurde. Der ausgesuchte Testfall zeigt das Potential dieser Technik und mögliche Verbessungsansätze. So muss der verwendete Algorithmus automatisiert werden, indem das modellierte Strahlungsprofil mit Hilfe eines Iterationsverfahrens und der Methode der kleinsten Fehlerquadrate an das gemessene Profil angepasst wird. Zusätzlich ist eine Erhöhung der vertikalen Auflösung von 50 m auf 10 m Schritte nötig, um kleinskalige Fluktuationen zu berücksichtigen. Die Verwendung von bodengebundenen Beobachtungen und nahegelegenen Radiosondenaufstiegen in der Modellatmosphäre führt zu einer weiteren signifikanten Verbesserung der abgeleiteten Temperaturprofile.