Local Lorentz force flowmeter at a continuous caster model using a new generation multicomponent force and torque sensor. - In: Measurement science and technology, ISSN 1361-6501, Bd. 27 (2016), 6, S. 065302, insges. 9 S.
Lorentz force velocimetry is a non-invasive velocity measurement technique for electrical conductive liquids like molten steel. In this technique, the metal flow interacts with a static magnetic field generating eddy currents which, in turn, produce flow-braking Lorentz forces within the fluid. These forces are proportional to the electrical conductivity and to the velocity of the melt. Due to Newton's third law, a counter force of the same magnitude acts on the source of the applied static magnetic field which is in our case a permanent magnet. In this paper we will present a new multicomponent sensor for the local Lorentz force flowmeter (L2F2) which is able to measure simultaneously all three components of the force as well as all three components of the torque. Therefore, this new sensor is capable of accessing all three velocity components at the same time in the region near the wall. In order to demonstrate the potential of this new sensor, it is used to identify the 3-dimensional velocity field near the wide face of the mold of a continuous caster model available at the Helmholtz-Zentrum Dresden-Rossendorf. As model melt, the eutectic alloy GaInSn is used.
http://dx.doi.org/10.1088/0957-0233/27/6/065302
High-precision horizontally directed force measurements for high dead loads based on a differential electromagnetic force compensation system. - In: Measurement science and technology, ISSN 1361-6501, Bd. 27 (2016), 4, S. 045107, insges. 13 S.
http://dx.doi.org/10.1088/0957-0233/27/4/045107
Methods of surface reconstruction from the white light interferogram based on Hilbert transform :
Metody rekonstrukcji powierzchni z interferogramu âswiatła białego bazuj&hlink;ace na transformacie Hilberta. - In: Zeszyty naukowe Politechniki Rzeszowskiej, ISSN 2300-6358, Bd. 34 (2015), 4, S. 71-75
The paper presents methods for nonlinear surface profile reconstruction from the white light interferogram based on Hilbert transform. The accuracy of these methods was analyzed on the example of a spherical surface reconstruction. The method investigation included surface and interferogram synthesis based on the mathematical model and estimation the profile reconstruction error. The method of estimating the instantaneous phase of the interferogram showed the greatest accuracy.
https://doi.org/10.7862/re.2015.39
XXIX. Messtechnisches Symposium : Ilmenau, 16.-18. September 2015 : Tagungsband. - Berlin : De Gruyter Oldenbourg, 2015. - VIII, 172 Seiten ISBN 978-3-11-040852-2
Literaturangaben
An upgraded data acquisition and drive system at the nanometer comparator. - In: Proceedings of the 5th ASPE Topical Meeting on Precision Interferometric Metrology, (2015), S. 61-66
Metrological array of cyber-physical systems : Part 13 : segmental approximation for surface topology reconstruction. - In: Sensors & transducers, ISSN 2306-8515, Bd. 195 (2015), 12, S. 50-55
This article presents the segment approximation method for surface topology reconstruction from white light interferogram. The method involves polynomial approximation of separate interferogram segments, and polynomial coefficients are computed at calibration stage. Metrological properties of proposed method are investigated by interferogram modeling tilted and spherical surfaces.
Prozessmesstechnik und Präzisionsmesstechnik : editorial. - In: Technisches Messen, ISSN 2196-7113, Bd. 82 (2015), 7/8, S. 391-392
Das 58. Ilmenauer Wissenschaftliche Kolloquium, das vom 8. bis 12. September 2014 stattfand, stand unter dem Motto Shaping the Future by Engineering. Das Ilmenauer Wissenschaftliche Kolloquium (IWK) hat eine mehr als 50-jährige Tradition und ist damit eine der dienstältesten ingenieurwissenschaftlichen Konferenzen Deutschlands. Die drei Hauptthemen der Konferenz "Precision Engineering and Precision Measurement Technology", "Mechatronics, Biomechatronics and Mechanism Technology" und "SystemsTechnology" spiegeln die Forschungsschwerpunkte und -strategien der Technischen Universität Ilmenau und besonders der Fakultät für Maschinenbau wider, die im Jahr 2014 Ausrichter des IWK war. Dieses Schwerpunktheft enthält 7 ausgewählte Artikel, die aus Konferenzvorträgen in den durch das Institut für Prozessmess- und Sensortechnik organisierten Konferenzreihen Nanopositioning and Nanomeasuring Machines und Measurement and Sensor Technology entstanden sind.
https://doi.org/10.1515/teme-2016-0014
Fasergekoppelte Heterodyn-Interferometer mit digital-offsetfrequenzgeregelter He-Ne-Laserlichtquelle. - In: 7. Kolloquium Mikroproduktion, ISBN 978-3-00-050755-7, (2015), S. 158-164
Temperature calibrators for universal, automatic calibration of thermometers using an absolute-value reference (Tempkal) :
BMBF-Projekt zur Validierung des Innovationspotenzials wissenschaftlicher Forschung (VIP) : "Temperaturkalibratoren zur universellen, automatischen Kalibrierung von Thermometern mit Absolutwertbezug (Tempkal)" : Schlussbericht : Laufzeit: 01.02.2012-30.04.2015. - Ilmenau : Technische Universität Ilmenau, Institut Prozessmess- und Sensortechnik. - 1 Online-Ressource (33 Seiten, 1,49 MB)Förderkennzeichen BMBF 03V0255
https://edocs.tib.eu/files/e01fb16/863750354.pdf
Modeling of tubular optical fibers using the example of an optical-electrical combination conductor. - In: POF simulation beyond data transmission, ISBN 978-3-7392-1499-3, (2015), S. 71-75
The article deals with the modeling of tubular polymer optical fibers. These occur in the patented optical electrical conductor combination system as light-conducting wrapping of an electrical cord and serve as a novel tool for the detection of arc faults. The wrapping represents a tubular step index waveguide consisting of 3 polymer layers an inner and an outer cladding as well as a light guiding core layer. To optimize the properties of the fiber, in particular the layer thicknesses, the influence of damping mechanisms caused by bending, core-cladding surface roughness and volume scattering losses are investigated and put into a model which is simple and flexible to parameterize. In doing so, the most difficult part turns out to be the modeling of survace-scattering at the core-cladding interface. In this paper the developed model is described and corresponding results are shown using the example of a silicone-FEP material combination.