Search Results - "Zagar, Bernhard"
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Analysis and Validation of a Planar High-Frequency Contactless Absolute Inductive Position Sensor
Published in IEEE transactions on instrumentation and measurement (01-03-2015)“…This paper presents a low cost precise and reliable inductive absolute position measurement system. It is suitable for rough industrial environments, offers a…”
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Estimation of Tissue Attenuation from Ultrasonic B-Mode Images-Spectral-Log-Difference and Method-of-Moments Algorithms Compared
Published in Sensors (Basel, Switzerland) (05-04-2021)“…We report on results from the comparison of two algorithms designed to estimate the attenuation coefficient from ultrasonic B-mode scans obtained from a…”
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Application of impedance spectroscopy and tomography to monitor calcite deposits in drainage pipes
Published in Elektrotechnik und Informationstechnik (2022)“…The determination of calcite deposits in drainage pipes plays an important role in tunnel construction as well as in ongoing operation. If these deposits are…”
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Modeling, Preparation and Characterization of a Pressure Measurement System With Customizable High-Pass Characteristic
Published in IEEE sensors journal (01-12-2015)“…We present a measurement system, capable of measuring a small changing pressure component additional to a much larger static average pressure. It comprises a…”
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A numerical approximation of the Huygens-Fresnel integral – Simulations of a rough wetting problem
Published in Measurement : journal of the International Measurement Confederation (01-10-2013)“…•Oil films act as low-pass filters to the underlying surface roughness.•Laser speckle size of partially developed objective speckle patterns correlate…”
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Deconvolution of High-Resolution Magnetic Field Scans for Improved Current Density Imaging
Published in IEEE transactions on magnetics (01-02-2014)“…Inverse problems are gaining more and more importance in the field of nondestructive testing (NDT). Magnetic imaging is an NDT method, which leads to an…”
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Komponenten der Messunsicherheit eines Faraday-Magnetometers
Published in Elektrotechnik und Informationstechnik (01-10-2022)“…Zusammenfassung In diesem Beitrag wird ein magneto-optischer Sensor auf Basis des Faraday-Effekts vorgestellt. Hiermit können anhand der Messung einer…”
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Visualization of spatial conductivity irregularities within conductive rubber sheets
Published in Compel (04-07-2016)“…Purpose – The purpose of this paper is to present a fast and contactless measurement method to determine the spatial conductivity distribution within an…”
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Schätzung der Gewebeabsorption aus medizinischen Ultraschall-Bildern
Published in Elektrotechnik und Informationstechnik (01-10-2022)“…Zusammenfassung Ultraschall ist eine sich im Gewebe ausbreitende mechanische Welle, die von den lokal vorherrschenden akusto-mechanischen Gegebenheiten in…”
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Improving the Spatial Resolution of Magneto Resistive Sensors via Deconvolution
Published in IEEE sensors journal (01-11-2013)“…State-of-the-art GMR sensors are becoming increasingly popular for a variety of applications, due to of the progress in the area of magnetic field sensor…”
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Iteration Methods to Precisely Locate Edges of Hot Objects Using Simple Infrared-Sensing Elements
Published in IEEE transactions on instrumentation and measurement (01-01-2011)“…This paper deals with novel mathematical methods to locate the edges of heated planar objects employing simple photodiodes. Thereby, both the lateral edge…”
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Estimation of the surface normal velocity of high frequency ultrasound transducers
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-01-2008)“…This paper is concerned with the characterization of the true locally resolved surface normal velocity of an assumed piston-type ultrasonic transducer. Instead…”
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Reconstruction of Temperature Fields from Ultrasonic Travel Time Measurements
Published in 2021 IEEE International Ultrasonics Symposium (IUS) (11-09-2021)“…In this contribution we present a technique for measuring temperature fields using ultrasound. Since it requires no sensors within the measurement volume, this…”
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Conference Proceeding -
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Delay-and-Sum Processing of Echo Data of Transducers Focused by 3D Printed Lenses
Published in 2020 IEEE International Ultrasonics Symposium (IUS) (07-09-2020)“…This contribution deals with focusing piezoelectric ultrasonic transducers with 3D printed lenses. Transducers focused with a fixed focus lens are often used,…”
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Conference Proceeding -
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Development of a low-cost measurement system for cutting edge profile detection
Published in 中国光学快报:英文版 (10-07-2011)“…The use of a compact disk (CD) pickup head as a displacement measurement system is described. The components contained in a pickup head are explained and how…”
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Measurement of Magnetic Microstructures with a Faraday Rotation Magnetometer
Published in 2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) (01-05-2020)“…A Faraday Rotation Magnetometer (FRM) is a magneto-optical setup that provides a fast and non-destructive method to measure magnetic microstructures. It is…”
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Current research by ÖBB Infrastruktur AG on scale monitoring without track closures
Published in Geomechanik und Tunnelbau (01-06-2018)“…In water pressure‐relieved rail tunnels, calcium carbonate scaling occurs in tunnel drain pipes. This scaling is caused by the surrounding geology, groundwater…”
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Tomographic Artificial Skin for Robotic Application
Published in 2022 17th International Conference on Control, Automation, Robotics and Vision (ICARCV) (11-12-2022)“…As technology advances, robots are becoming more and more a part of our daily lives. While industrial robots have already been in use for a several years, an…”
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Conference Proceeding -
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Localization of Electrodes based on Resistance Measurements
Published in 2023 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) (22-05-2023)“…This paper considers the problem of the localization of electrodes in a distributed sensor system. Especially in impedance tomography the localization of the…”
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Conference Proceeding