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Fundamental Investigations in the Design of Five-Axis Nanopositioning Machines for measurement and Fabrication Purposes

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Nanomanufacturing and Metrology 2021年第3期4卷 156-164页

作者： Ralf Schienbein Florian Fern Rene Theska Shraddha Supreeti Roland FuBl Eberhard Manske Department of Mechanical Engineering Institute of Design and Precision Engineering.Technical University of Ilmenau.IlmenauGermany Institute of Process Measurement and Sensor Technology Department of Mechanical EngineeringTechnical University of IlmenauIlmenauGermany Electronics Technology Group Department of Electrical Engineering and Information TechnologyTechnical University of IlmenauIlmenauGermany

The majority of nanopositioning and nanomeasuring machines(NPMMs)are based on three independent linear movements in a Cartesian coordinate *** in combination with the specific nature of sensors and tools limits the addressable part *** enhancement of an NPMM is introduced by the implementation of rotational movements while keeping the precision in the nanometer *** this purpose,a parameter-based dynamic evaluation system with quantifiable technological parameters has been set up and employed to identify and assess general solution concepts and adequate *** taken show high potential for three linear movements of the object in combination with two angular movements of the *** influence of the additional rotation systems on the existing structure of NPMMs has been investigated further *** series on the repeatability of an NPMM enhanced by a chosen combination of a rotary stage and a goniometer setup are *** a result of these test series,the necessity of in situ position determination of the tool became very *** tool position is measured in situ in relation to a hemispherical reference mirror by three Fabry-Perot *** optimization has been used to enhance the overall system structure with regard to reproducibility and long-term *** have been experimentally investigated by use of a retroreflector as a tool and the various laser interferometers of the *** knowledge gained has been formed into general rules for the verification and optimization of design solutions for multiaxial nanopositioning machines.

关键词： Multiaxial nanopositioning and nanomanufacturing Ultra-precision machine designs 5-Axis operation Ultraprecision rotations

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Interface Modification of TiO_(2)Electron Transport Layer with PbCl_(2)for Perovskiote Solar Cells with Carbon Electrode

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Tsinghua Science and technology 2022年第4期27卷 741-750页

作者： Abolfazl Amraeinia Yuhua Zuo Jun Zheng Zhi Liu Guangze Zhang Liping Luo Buwen Cheng Xiaoping Zou Chunbo Li Key Laboratory on Integrated Optoelectronics Institute of SemiconductorChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for SensorMOE Key Laboratory for Modern Measurement and Control TechnologyBeijing Information Science and Technology UniversityBeijing 100101China School of Science Minzu University of ChinaBeijing 100081China

Perovskite Solar Cells(PSCs)have attracted considerable attention because of their unique features and high ***,the stability of perovskite solar cells remains to be *** this study,we modified the TiO_(2)Electron Transport Layer(ETL)interface with PbCl_(2).The efficiency of the perovskite solar cells with carbon electrodes increased from 11.28%to 13.34%,and their stability obviously *** addition of PbCl_(2)had no effect on the morphology,crystal structure,and absorption property of the perovskite absorber ***,it affected the band energy level alignment of the solar cells and accelerated the electron extraction and transfer at the interface between the perovskite layer and the ETL,thus enhancing the overall photovoltaic *** interfacial modification of ETL with PbCl_(2)is a promising way for the potential commercialization of low-cost carbon electrode-based perovskite solar cells.

关键词： Perovskite Solar Cell(PSC) Electron Transport Layer(ETL) electron and hole recombination modification stability

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Ultrastable, traceable optical frequencies for length metrology in long-range nanopositioning and nanomeasuring machines 22

Ultrastable, traceable optical frequencies for length metrol...

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22nd International Conference of the European Society for Precision engineering and Nanotechnology, EUSPEN 2022

作者： Blumröder, Ulrike Köchert, Paul Fröhlich, Thomas Füßl, Roland Ortlepp, Ingo Gerhardt, Uwe Mastylo, Rostyslav Flügge, Jens Bosse, Harald Manske, Eberhard Technische Universität Ilmenau Institute of Process Measurement and Sensor Technology Gustav-Kirchhoff-Str. 1 Ilmenau98693 Germany Precision Engineering Division Bundesallee 100 Braunschweig38116 Germany

ISBN: (纸本)9781998999118

Precise interferometric distance measurements play a crucial role in length measuring and positioning systems that provide resolving capabilities down to the sub-nm-range. Especially for applications in nanotechnology, length metrology has to face additional challenges due to increasing measurement ranges and traverse speed. Nanopositioning and measuring machines (NPMM) meet the demands on positioning with nm-accuracy over long measurement distances. Currently, the next generation of NPMMs (NPMM-200) provide a measuring range of 200 mm × 200 mm × 25 mm with a measuring repeatability up to 20 pm. This also sets new demands on the frequency stability of the laser sources used for interferometry. In this study we present two new approaches to create traceable, ultrastable optical frequencies at 633 nm that provide frequency stability below the electronic resolution limit of the interferometers (?s = 25.10-12) thus allowing to practically eliminate the influence of frequency distortions in the NPMM-200. Both approaches utilize an optical frequency comb to ensure traceability and long-term frequency stability. The first approach permanently couples the metrology lasers of the NPMM-200 to a comb line. The second approach is based on a diode laser stabilized to an ultrastable cavity. This allows to set up a frequency reference with enhanced-short-term frequency stability and high output power. Thus, in combination with the optical frequency comb a frequency stability better than 10-12independent on integration time is prospectively accessible. © European Society for Precision engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022. All rights reserved.

关键词： Frequency stability

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Segment-Anything Models Achieve Zero-shot Robustness in Autonomous Driving

Segment-Anything Models Achieve Zero-shot Robustness in Auto...

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Automated Vehicle Validation Conference (IAVVC), IEEE International

作者： Jun Yan Pengyu Wang Danni Wang Weiquan Huang Daniel Watzenig Huilin Yin College of Electronics and Information Engineering Tongji University Shanghai China Institute of Electrical Measurement and Sensor Systems Graz University of Technology and with the Virtual Vehicle Research Graz Austria

ISBN: (数字)9798350354072

ISBN: (纸本)9798350354089

Semantic segmentation is a significant perception task in autonomous driving. It suffers from the risks of adversarial examples. In the past few years, deep learning has gradually transitioned from convolutional neural network (CNN) models with a relatively small number of parameters to foundation models with a huge number of parameters. The segment-anything model (SAM) is a generalized image segmentation framework that is capable of handling various types of images and is able to recognize and segment arbitrary objects in an image without the need to train on a specific object. It is a unified model that can handle diverse downstream tasks, including semantic segmentation, object detection, and tracking. In the task of semantic segmentation for autonomous driving, it is significant to study the zero-shot adversarial robustness of SAM. Therefore, we deliver a systematic empirical study on the robustness of SAM without additional training. Based on the experimental results, the zero-shot adversarial robustness of the SAM under the black-box corruptions and white-box adversarial attacks is acceptable, even without the need for additional training. The finding of this study is insightful in that the gigantic model parameters and huge amounts of training data lead to the phenomenon of emergence, which builds a guarantee of adversarial robustness. SAM is a vision foundation model that can be regarded as an early prototype of an artificial general intelligence (AGI) pipeline. In such a pipeline, a unified model can handle diverse tasks. Therefore, this research not only inspects the impact of vision foundation models on safe autonomous driving but also provides a perspective on developing trustworthy AGI. The code is available at: https://***/momo1986/robust_sam_iv.

关键词： Training Systematics Semantic segmentation Artificial general intelligence Pipelines Training data Prototypes Robustness Convolutional neural networks Autonomous vehicles

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A Double Node Thin-Film Thermocouples for In-Situ measurement

A Double Node Thin-Film Thermocouples for In-Situ Measuremen...

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2022 International Conference on Automation, Robotics and Computer engineering, ICARCE 2022

作者： Ma, Rong Zhang, Meiju Zhang, Zhongkai Huang, Manguo Liang, Xiaobo Liu, Jiangjiang Liu, Zhaojun Tian, Bian Xi'An Jiaotong University State Key Laboratory for Mechanical Manufacturing Systems Engineering Xi'an China Aviation Key Laboratory of Science and Technology on Special Condition Monitoring Sensor Technology Beijing Changcheng Aeronautic Measurement and Control Technology Research Institute Beijing China

ISBN: (纸本)9781665475488

The design, fabrication, testing and implementation of a new high-performance tungsten-rhenium thin film thermocouple are introduced. In this paper, tungsten-rhenium TFTCs are taken as the research object, after simulation analysis in COMSOL software and design, it is made by screen-printing technology and magnetron sputtering. This kind of thin film thermocouple primarily utilizes two kinds of electrode materials with varying composition combination, mainly tungsten with 5% rhenium and tungsten with 26% rhenium. Furthermore, high-temperature annealing is performed to maintain the mechanical properties and thus improve thermoelectric performance. The results demonstrate that the performance is reliable in the temperature range of 150-600 C° with a repeatability of 2.02%, providing application value for high-temperature in-situ sensing. © 2022 IEEE.

关键词： Thermocouples

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A New Method to Determine the Shear Wave Speed and Attenuation Coefficient in Phantoms for Ultrasound Shear Wave Elastography

A New Method to Determine the Shear Wave Speed and Attenuati...

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IEEE Instrumentation and measurement technology Conference

作者： Zuyuan Wang Christian Kargel School of Mechanical and Electrical Engineering University of Electronic Science and Technology of China Sichuan Chengdu China Division of Sensor Technology and Measurement Systems Institute for Measurement and Automation Bundeswehr University Munich Neubiberg Germany

Ultrasound shear wave elastography is an effective imaging method for diagnosing abnormal tissues. It can provide spatially resolved tissue information like the shear wave speed $c$ s and the attenuation coefficient a, which depend on the (health) condition of the examined tissue. In this study we investigate a new method to determine c s and $a$ by using a homogenous tissue-mimicking agar phantom and taking into account the inevitable reflection at the phantom-air boundary. The experimental data are fitted in the least-squares sense to a model that is theoretically derived and accounts for a single reflected wave. The obtained $c$ s and $a$ are then used to calculate in a rheological model-independent fashion the shear storage modulus G’ and the shear loss modulus G“, which are often used in material testing, and together fully describe the behavior of a viscoelastic material. The G’ and G“ results are compared with those obtained using a standard rotational rheometer.

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Microscale Electromagnetic Tracking Using a Second-Generation Quantum sensor

Microscale Electromagnetic Tracking Using a Second-Generatio...

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Impedance Spectroscopy (IWIS), International Workshop on

作者： Thomas Thuilot Marc Simoneit Jonas Brodmann Michael Schäfer Andreas Hennig Olfa Kanoun Institute for Measurement Engineering and Sensor Technology Ruhr West University of Applied Sciences Mülheim a. d. Ruhr Germany Institute of Computer Science Ruhr West University of Applied Sciences Bottrop Germany Chair for Measurement and SensorTechnology Chemnitz University of Technology Chemnitz Germany

ISBN: (数字)9798331507626

ISBN: (纸本)9798331507633

This study demonstrates the application of second-generation quantum sensors in one-dimensional tracking. Due to their compact size, these magnetic field-sensitive sensors are particularly advantageous for medical and industrial settings where conventional sensors may be too large or vulnerable to electromagnetic interference. The proposed sensor setup achieves an average resolution of 1.22 mV/mm for tracking within a 100 mm range. The study also explores the nature and impact of various noise sources and discusses potential future techniques for mitigating these interferences.

关键词： Spectroscopy Electric potential Magnetic sensors Conferences Noise Electromagnetic interference Impedance Electromagnetics Quantum sensing

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E-textile technology: From materials to applications and wireless distance transfer 20

E-textile technology: From materials to applications and wir...

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20th International Multi-Conference on Systems, Signals and Devices, SSD 2023

作者： Fadhel, Yosra Ben Bouattour, Ghada Bouchaala, Dhouha Derbel, Nabil Kanoun, Olfa University of Tunis El-Manar Biomedical Engineering Higher Institute of Medical Technologies Tunis Tunisia Technische Universität Chemnitz Electric Engineering Chemnitz Germany University of Sfax Digital Research Center of Sfax Sfax Tunisia University of Sfax National School of Engineering of Sfax Sfax Tunisia Technische Universität Chemnitz Measurement and Sensor Technology Chemnitz Germany

ISBN: (纸本)9798350332568

Wearable technology is suitable for specific electronic applications in a variety of industries, including healthcare, entertainment, sports, and military. Although the market for wearable technology is growing, most of the present devices are battery-powered accessories, and their form factors prevent them from taking advantage of the human body's huge surface area for spatiotemporal sensing or energy harvesting from movements. However, consumer devices have been hard to come by due to the inherent difficulties in replicating traditional manufacturing technologies (that have enabled these wearable accessories) on textiles. E-textiles offers an opportunity to expand on current wearables to enable such applications via the larger surface area offered by garments. Additionally, the requirement for textiles to be flexible, and machine washable has been shown to be incompatible with the powering of e-textile devices using battery energy, like in wearable accessories. The pathway to industry-scale commercialization is still unclear, despite the fact that recent research on e-textiles has revealed improvements in materials, novel processing methods, and unique e-textile prototype devices. In addition, active E-textile devices requires a comfortable source of power to remove the batteries' use drawbacks. The distance transfer is one of the biggest challenge of this technology. This article discusses the advancements made in the technology used to create smart textiles with a big focus on the wireless power transfer techniques. It points out difficulties that prevent the industry from adopting the indicated fabrication technologies and devices for mass-market commercialization. © 2023 IEEE.

关键词： Smart textiles

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Segment-Anything Models Achieve Zero-shot Robustness in Autonomous Driving

arXiv

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arXiv 2024年

作者： Yan, Jun Wang, Pengyu Wang, Danni Huang, Weiquan Watzenig, Daniel Yin, Huilin The College of Electronics and Information Engineering Tongji University Shanghai201804 China The Institute of Electrical Measurement and Sensor Systems Graz University of Technology The Virtual Vehicle Research Graz8010 Austria

关键词： Semantic Segmentation

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Fabrication and characterisation of La0.8Sr0.2CrO3-ITO thermocouples for high-temperature sensing

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International Journal of Nanomanufacturing 2022年第1期18卷 1-8页

作者： Chen, Bohan Huang, Manguo Zhang, Meiju Liang, Xiaobo Liu, Dan Wang, Lingyan Niu, Gang Zhang, Zhongkai Tian, Bian Shi, Peng Ren, Wei Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education and International Center for Dielectric Research School of Electronic and Information Engineering Xi’an Jiaotong University Xi’an710049 China Beijing Changcheng Aeronautic Measurement and Control Technology Research Institute Beijing101111 China Aviation Key Laboratory of Science and Technology on Special Condition Monitoring Sensor Technology Beijing101111 China State Key Laboratory for Mechanical Manufacturing Systems Engineering School of Mechanical Engineering Xi’an Jiaotong University Xi’an710049 China

La0.8Sr0.2CrO3-ITO thermocouples were successfully fabricated by screen printing. The La0.8Sr0.2CrO3 powder used for screen printing was obtained by the sol-gel method. The highest thermal voltage output was maintained at 270 mV at 1270°C. The microstructure of La0.8Sr0.2CrO3 and ITO electrode films were analysed by SEM. Thermoelectric response test was implemented to measure the performance of La0.8Sr0.2CrO3-ITO thermocouple by three times of thermal cycles. The results indicated that La0.8Sr0.2CrO3-ITO thermocouple showed good stability at high temperature. Copyright © 2022 Inderscience Enterprises Ltd.

关键词： Screen printing

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