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2017 IEEE International Conference on Imaging systems and Techniques, IST 2017

作者： Manguo, Huang Defeng, Liu Chao, Lu Zhanshe, Guo Xin, Li Advanced Sensor Technology Center AVIC Beijing Changcheng Aeronautic Measurement Control Technology Research Institute Aviation Key Laboratory of Science and Technology Special Condition Monitoring Sensor Technology Beijing China School of Instrument Science and Opto-electronics Engineering State Key Laboratory of Virtual Reality Technology and Systems Beihang University Beijing China

ISBN: (纸本)9781538616208

In order to solve the problem that the temperature drift of the silicon-on-sapphire pressure sensor is too large to reduce the accuracy of pressure measurement at high temperature, a temperature compensation scheme based on a single chip is proposed. The temperature of the working environment is obtained by a PT100, and integrated with the output of pressure sensor to calculate the compensated pressure sensor. Problems of power supply and signal acquisition are solved by the high precision, low drift voltage and current references, programmable amplifiers and high precision ADCs on chip. According to the working characteristics of the silicon-on-sapphire pressure sensor, an efficient temperature compensation algorithm is designed, and written to the on-chip ARM processor. The experimental results show that the maximum measurement error of pressure in the temperature range of -20∼250°C and measurement range of 0∼28 MPa is 8.37%FS before compensation and reduced to 0.3%FS after compensation. The accuracy of the sensor is greatly improved by the compensation system. © 2017 IEEE.

关键词： Pressure sensors

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Database of novel magnetic materials for high-performance permanent magnet development

arXiv

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arXiv 2019年

作者： Nieves, P. Arapan, S. Maudes, J. Marticorena, R. Del Brío, N.L. Kovacs, A. Echevarria-Bonet, C. Salazar, D. Weischenberg, J. Zhang, H. Vekilova, O.Yu. Serrano-López, R. Barandiaran, J.M. Skokov, K. Gutfleisch, O. Eriksson, O. Herper, H.C. Schrefl, T. Cuesta-López, S. ICCRAM International Research Center in Critical Raw Materials and Advanced Industrial Technologies Universidad de Burgos Burgos09001 Spain VSB Tech Univ Ostrava IT4Innovations 17 Listopadu 15 OstravaCZ-70833 Czech Republic Department of Civil Engineering Universidad de Burgos Burgos09006 Spain Center for Integrated Sensor Systems Danube University Krems Lower Austria Krems3500 Austria BCMaterials Basque Centre for Materials Applications and Nanostructures UPV/EHU Science Park Leioa48940 Spain Department of Materials and Geosciences TU Darmstadt Darmstadt64287 Germany Department of Physics and Astronomy Uppsala University Box 516 Uppsala75121 Sweden School of Science and Technology Örebro University ÖrebroSE-70182 Sweden ICAMCyL Foundation International Center for Advanced Materials and Raw Materials of Castilla y León Cubillos del Sil León24492 Spain

This paper describes the open Novamag database that has been developed for the design of novel Rare-Earth free/lean permanent magnets. The database software technologies, its friendly graphical user interface, advanced search tools and available data are explained in detail. Following the philosophy and standards of Materials Genome Initiative, it contains significant results of novel magnetic phases with high magnetocrystalline anisotropy obtained by three computational high-throughput screening approaches based on a crystal structure prediction method using an Adaptive Genetic Algorithm, tetragonally distortion of cubic phases and tuning known phases by doping. Additionally, it also includes theoretical and experimental data about fundamental magnetic material properties such as magnetic moments, magnetocrystalline anisotropy energy, exchange parameters, Curie temperature, domain wall width, exchange stiffness, coercivity and maximum energy product, that can be used in the study and design of new promising high-performance Rare-Earth free/lean permanent magnets. The results therein contained might provide some insights into the ongoing debate about the theoretical performance limits beyond Rare-Earth based magnets. Finally, some general strategies are discussed to design possible experimental routes for exploring most promising theoretical novel materials found in the database. Copyright © 2019, The Authors. All rights reserved.

关键词： Permanent magnets

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Propagation of magnetic domains in exchange coupled and exchange decoupled Nd-Fe-B magnets observed by magneto-optic Kerr effect

Propagation of magnetic domains in exchange coupled and exch...

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2017 IEEE International Magnetics Conference, INTERMAG 2017

作者： Soderznik, M. Amin, H. Sepehri Sasaki, T. Ohkubo, T. Takada, Y. Sato, T. Kaneko, Y. Kato, A. Schrefl, T. Hono, K. National Institute for Materials Science Tsukuba Japan Jozef Stefan Institute Ljubljana Slovenia Toyota Central R and D Labs Inc. Nagakute Japan Toyota Motor Corp Advanced Material Engineering Div. Susono Japan Center for Integrated Sensor Systems Danube University Krems Austria

ISBN: (纸本)9781538610862

关键词： Magnetic domains

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A connected chair as part of a smart home environment

A connected chair as part of a smart home environment

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International Workshop on Wearable and Implantable Body sensor Networks (BSN)

作者： Marc Hesse André Frank Krause Ludwig Vogel Bhavin Chamadiya Michael Schilling Thomas Schack Thorsten Jungeblut Cognitronics and Sensor Systems Group Cluster of Excellence Cognitive Interaction Technology (CITEC) at Bielefeld University Bielefeld Germany Neurocognition and Action - Biomechanics Group Cluster of Excellence Cognitive Interaction Technology (CITEC) at Bielefeld University Bielefeld Germany Advanced Engineering Group at Hella KGaA Hueck & Co. Lippstadt Germany

ISBN: (纸本)9781509062454

The connected chair is part of the Supportive Personal Coach in the KogniHome project, which offers guided fitness training, relaxation, and assistive functions. The chair comes with integrated sensors, actuators, control logic and wireless transceiver. The sensors are able to measure respiration and heart rate as well as the user's actions. The actuators are used to adjust the chair to the actual user's needs and the transceiver is used to connect wireless sensor nodes and to exchange data with a base station. Additional value is generated by connecting the chair to the smart home environment, which enables and expands novel features and applications.

关键词： Actuators Intelligent sensors Heart rate Radar Training Tracking

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Adaptive clustering for contour estimation of vehicles for high-resolution radar

Adaptive clustering for contour estimation of vehicles for h...

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IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM)

作者： Johannes Schlichenmaier Fabian Roos Martin Kunert Christian Waldschmidt Institute of Microwave Engineering Ulm University Ulm Germany Robert Bosch GmbH Advanced Engineering Sensor Systems Leonberg Germany

ISBN: (纸本)9781509023684

Future automotive radars will be able to achieve much higher range and angular resolution compared to currently used radar sensors. This enables functionalities like vehicle contour estimation to be used in advanced driver assistance systems, thus heavily increasing their performance. In this paper, the application of an adaptive algorithm on basis of k-nearest-neighbours examination for clustering radar data as precursor to estimation of width, length, and position of vehicles is presented and compared to a more basic algorithm. The influence of the parameters of this KNN-DBSCAN algorithm and its performance dependency on the used MIMO radar system is discussed.

关键词： Clustering algorithms Estimation Laser radar Kernel Radar imaging Smoothing methods

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Hardware acceleration of Maximum-Likelihood angle estimation for automotive MIMO radars

Hardware acceleration of Maximum-Likelihood angle estimation...

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Conference on Design and Architectures for Signal and Image Processing

作者： Frank Meinl Martin Kunert Holger Blume Advanced Engineering Sensor Systems Robert Bosch GmbH Leonberg Germany Institut für Mikroelektronische Systeme Leibniz Universität Hannover Hannover Germany

ISBN: (纸本)9781509030859

Direction of arrival (DOA) estimation is an important array signal processing technique, used by various applications such as radar, sonar or wireless communication. Most of the known DOA algorithms suffer from a significant performance reduction and even fail completely under difficult conditions, like small antenna aperture size, correlated signals or a small number of snapshots. Maximum-Likelihood (ML) methods have been investigated thoroughly and are known to still work even in such difficult scenarios. Though, the major drawback of ML methods is their computational cost, especially in the case of large MIMO (multiple-input multiple-output) configurations. This work presents a novel hardware accelerator architecture, which is able to compute the exact ML estimation in the case of one or two targets. It is shown, that the computational demanding vector product can be implemented with the help of CORDIC units, which help to save a considerable amount of hardware resources. Furthermore, the result of the single target estimator can be reused to efficiently compute the estimates in the two-target case. Finally, the performance of the architecture is evaluated by a FPGA implementation which is able to process more than 20 000 detections from 16 channels with 256 steering vectors in real-time (25 Hz).

关键词： Direction-of-arrival estimation Maximum likelihood estimation Radar Antenna arrays Hardware Radar antennas

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The PLATO mission

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Experimental Astronomy 2025年第3期59卷 1-111页

作者： Rauer, Heike Aerts, Conny Cabrera, Juan Deleuil, Magali Erikson, Anders Gizon, Laurent Goupil, Mariejo Heras, Ana Walloschek, Thomas Lorenzo-Alvarez, Jose Marliani, Filippo Martin-Garcia, César Mas-Hesse, J. Miguel O’Rourke, Laurence Osborn, Hugh Pagano, Isabella Piotto, Giampaolo Pollacco, Don Ragazzoni, Roberto Ramsay, Gavin Udry, Stéphane Appourchaux, Thierry Benz, Willy Brandeker, Alexis Güdel, Manuel Janot-Pacheco, Eduardo Kabath, Petr Kjeldsen, Hans Min, Michiel Santos, Nuno Smith, Alexis Suarez, Juan-Carlos Werner, Stephanie C. Aboudan, Alessio Abreu, Manuel Acuña, Lorena Adams, Moritz Adibekyan, Vardan Affer, Laura Agneray, François Agnor, Craig Aguirre Børsen-Koch, Victor Ahmed, Saad Aigrain, Suzanne Al-Bahlawan, Ashraf Alcacera Gil, Ma de los Angeles Alei, Eleonora Alencar, Silvia Alexander, Richard Alfonso-Garzón, Julia Alibert, Yann Allende Prieto, Carlos Almeida, Leonardo Alonso Sobrino, Roi Altavilla, Giuseppe Althaus, Christian Alvarez Trujillo, Luis Alonso Amarsi, Anish Ammler-von Eiff, Matthias Amôres, Eduardo Andrade, Laerte Antoniadis-Karnavas, Alexandros António, Carlos Aparicio del Moral, Beatriz Appolloni, Matteo Arena, Claudio Armstrong, David Aroca Aliaga, Jose Asplund, Martin Audenaert, Jeroen Auricchio, Natalia Avelino, Pedro Baeke, Ann Baillié, Kevin Balado, Ana Ballber Balagueró, Pau Balestra, Andrea Ball, Warrick Ballans, Herve Ballot, Jerome Barban, Caroline Barbary, Gaële Barbieri, Mauro Barceló Forteza, Sebastià Barker, Adrian Barklem, Paul Barnes, Sydney Barrado Navascues, David Barragan, Oscar Baruteau, Clément Basu, Sarbani Baudin, Frederic Baumeister, Philipp Bayliss, Daniel Bazot, Michael Beck, Paul G. Belkacem, Kevin Bellinger, Earl Benatti, Serena Benomar, Othman Bérard, Diane Bergemann, Maria Bergomi, Maria Bernardo, Pierre Biazzo, Katia Bignamini, Andrea Bigot, Lionel Billot, Nicolas Binet, Martin Biondi, David Biondi, Federico Birch, Aaron C. Bitsch, Bertram Bluhm Ceballos, Paz Victoria Bódi, Attila Bognár, Zsófia Boisse, Isabelle Bolmont, Emeline Bonanno, Alfio Bonavita, Institut für Planetenforschung Deutsches Zentrum für Luft- und Raumfahrt DLR Rutherfordstrasse 2 Berlin 12489 Germany Fachbereich Geowissenschaften Institut für Geologische Freie Universität Berlin Malteserstr. 74-100 Berlin 12249 Germany Institute of Astronomy KU Leuven Leuven Belgium CNRS CNES LAM Aix Marseille University Marseille France Max Planck Institute for Solar System Research Göttingen Germany LESIA Paris Observatory PSL University Sorbonne University Paris Cité University CNRS Meudon France ESTEC European Space Agency Noordwijk Netherlands ESAC European Space Agency Madrid Spain Centro de Astrobiología CSIC-INTA Campus ESAC Madrid Spain Center for Space and Habitability University of Bern Bern Switzerland INAF - Osservatorio Astrofisico di Catania Catania Italy Department of Physics and Astronomy University of Padua Padua Italy Department of Physics University of Warwick Coventry United Kingdom Astronomical Observatory of Padova INAF - Italian National Institute for Astrophysics Padua Italy Armagh Observatory and Planetarium College Hill Armagh United Kingdom Geneve Observatory University of Geneve Geneve Switzerland IAS University of Paris-Saclay Orsay France AlbaNove University Centre Stockholm University Stockholm Sweden Department of Astrophysics University of Vienna Vienna Austria Department of Astronomy University of Sao Paulo Sao Paulo Brazil Astronomical Institute of the Czech Academy of Sciences Ondřejov Czech Republic Department of Physics and Astronomy Aarhus University Aarhus Denmark Institute for Space Research SRON Leiden Netherlands Instituto de Astrofísica e Ciências do Espaço CAUP Universidade do Porto Porto Portugal Departamento de Física e Astronomia Faculdade da Ci ncias Universidade do Porto Porto Portugal Mullard Space Science Laboratory University College London Holmbury Saint Mary United Kingdom Dept. Theoretical Physics and the Cosmos University of Granada Granada Spain Centre for Plan

PLATO (PLAnetary Transits and Oscillations of stars) is ESA’s M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large number of stars. PLATO will detect small planets (down to <2REarth) around bright stars (<11 mag), including terrestrial planets in the habitable zone of solar-like stars. With the complement of radial velocity observations from the ground, planets will be characterised for their radius, mass, and age with high accuracy (5%, 10%, 10% for an Earth-Sun combination respectively). PLATO will provide us with a large-scale catalogue of well-characterised small planets up to intermediate orbital periods, relevant for a meaningful comparison to planet formation theories and to better understand planet evolution. It will make possible comparative exoplanetology to place our Solar System planets in a broader context. In parallel, PLATO will study (host) stars using asteroseismology, allowing us to determine the stellar properties with high accuracy, substantially enhancing our knowledge of stellar structure and evolution. The payload instrument consists of 26 cameras with 12cm aperture each. For at least four years, the mission will perform high-precision photometric measurements. Here we review the science objectives, present PLATO‘s target samples and fields, provide an overview of expected core science performance as well as a description of the instrument and the mission profile towards the end of the serial production of the flight cameras. PLATO is scheduled for a launch date end 2026. This overview therefore provides a summary of the mission to the community in preparation of the upcoming operational phases. © The Author(s) 2025.

关键词： Asteroseismology Exoplanets PLATO mission

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P-134: Flexible Transparent Electrode Film with a Continuous Ag Nanofiber Network Embedded Structure for Flexible OLEDs

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SID Symposium Digest of Technical Papers 2017年第1期48卷

作者： Juyoung Park Byung Gwan Hyun Hyeon-Gyun Im Byeong Wan An Jang-Ung Park Byeong-Soo Bae Wearable Platform Materials Technology Center Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon Korea School of Materials Science and Engineering Wearable Electronics Research Group Center for Smart Sensor Systems Ulsan National Institute of Science and Technology (UNIST) Ulsan City Korea

We report a flexible and high-performance TCE/substrate platform by introducing electro-spun Ag nanofiber (AgNF) and glass-fabric reinforced hybrimer (GFRHybrimer) with high transparency and robustness. A single-line network of AgNF, which already has a conductive path without junction, can provide high transparency and low sheet resistance, simultaneously. Moreover, GFRHybrimer matrix enhances the thermal stability of the AgNF TCE and mechanical durability of the composite film with smooth surface topography. To confirm the reliability and durability, we fabricated OLED on the AgNF/GFRHybrimer composite film and demonstrated the availability of the composite film for the next generation opto-electronics.

关键词： Transparent conducting electrodes Ag nanofiber Glass-fabric reinforced plastic siloxane hybrid flexible OLED

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Cross-sensitivity of metal oxide gas sensor to ambient temperature and humidity: Effects on gas distribution mapping

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AIP Conference Proceedings 2017年第1期1808卷

作者： K. Kamarudin V. H. Bennetts S. M. Mamduh R. Visvanathan A. S. A. Yeon A. Y. M. Shakaff A. Zakaria A. H. Abdullah L. M. Kamarudin 1Centre of Excellence for Advanced Sensor Technology Universiti Malaysia Perlis Pusat Pengajian Jejawi II Arau Perlis 02600 Malaysia 3School of Mechatronic Engineering Universiti Malaysia Perlis (UniMAP) Pauh Putra Campus 02600 Arau Perlis Malaysia 2Applied Autonomous Sensor Systems Örebro University Fakultetsgatan 1 70182 Örebro Sweden

Metal oxide gas sensors have been widely used in robotics application to perform remote and mobile gas sensing. However, previous researches have indicated that this type of sensor technology is cross-sensitive to environmental temperature and humidity. This paper therefore investigates the effects of these two factors towards gas distribution mapping and gas source localization domains. A mobile robot equipped with TGS2600 gas sensor was deployed to build gas distribution maps of indoor environment, where the temperature and humidity varies. The results from the trials in environment with and without gas source indicated that there is a strong relation between the fluctuation of the mean and variance map with respect to the variations in the temperature and humidity maps.

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High resolution automotive radar measurements of vulnerable road users - pedestrians & cyclists

High resolution automotive radar measurements of vulnerable ...

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2015 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility, ICMIM 2015

作者： Schubert, Eugen Meinl, Frank Kunert, Martin Menzel, Wolfgang Robert Bosch GmbH Advanced Engineering Sensor Systems P.O. Box 16 61 Leonberg71226 Germany Ulm University Institute of Microwave Techniques Ulm Germany

ISBN: (纸本)9781479972159

Several years after successful entry into automotive market radar sensors conquers more and more complex fields of automotive applications like Lane Change Assist or Automatic Emergency Braking systems. Future sensor generations will be challenged by constantly demanding resolution requirements not only determined by consumer rating organizations like EuroNCAP, but also by the challenges induced by highly automated driving features. To satisfy these needs detailed and more accurate information of objects in the vehicle's surrounding and their multi-dimensional extent will be mandatory. To gain information about radar characteristics of pedestrians and cyclists this paper provides measurements captured with a high resolution experimental radar setup. The results are analyzed and the found radar characteristics are discussed in detail, to serve as a basis for future development of sensor hardware and signal processing algorithms. © 2015 IEEE.

关键词： Radar measurement

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