检索结果-内蒙古大学图书馆

conference on Smart Sensing, Processing, and Instrumentation

作者： POLAND, SH BENGTSSON, JP BHATNAGAR, M RAVIKUMAR, KC DEVRIES, MJ CLAUS, RO VIRGINIA POLYTECH INST & STATE UNIV BRADLEY DEPT ELECT ENGNELECTROOPT RES CTRBLACKSBURGVA 24061

ISBN: (纸本)0819414867

The commercialization of optical fiber sensors in smart structure applications largely depends on the development of a multi-sensor system, capable of simultaneously monitoring different optical fiber sensors. Efficient multi-sensor systems can be realized through multiplexing arrays of sensors within a system, reducing the number of input/output information channels between the support electronics and optical sensors. We demonstrate a sensor system, comprised of four multiplexed extrinsic Fabry-Perot interferometers, that uses a code division multiplexing technique to address each sensor. Qualitative measurements of strain and temperature, obtained with this multi-measurand multiplexing system, and an evaluation of crosstalk between sensors is presented.

关键词： sensors Multiplexing Signal detection Fiber optics sensors Code division multiplexing Interferometry Modulation Fabry–Perot interferometers Sensing systems Smart structures

来源：评论

学校读者我要写书评

暂无评论

ARCADIA MAPS process qualification through the electrical characterization of passive pixel arrays

ARCADIA MAPS process qualification through the electrical ch...

引用

244th Electrochemical Society Meeting (ECS)

作者： Corradino, T. Betta, G. F. Dalla Neubuser, C. Pancheri, L. Univ Trento Dept Ind Engn Via Sommar 9 Trento Italy TIFPA INFN Via Sommar 14 Trento Italy

The development of novel Monolithic Active Pixel sensor (MAPS) technologies has been pursued by several collaborations in the last two decades. The ARCADIA project aims to design fully depleted MAPS for medical, space, HEP and X-ray detection applications, that can be produced with a commercial 110 nm CMOS production process. Among the test structures of the first two engineering runs of the project, passive pixel arrays with different pitches and layouts were included. The main characteristics of the produced devices in terms of dark current, depletion voltage, punch through current and pixel capacitance have been evaluated from IV and CV characteristics of the pixel arrays. Groups of four samples have been extracted from as many different positions within each wafer and electrically characterized to obtain information on the variability in the pixel operating voltage range and in the pixel dark current, reflecting variations related to the employed production process. The experimental data demonstrated a good uniformity in the considered parameters for different sample positions within the produced wafers, as well as for samples extracted from different wafers with the same substrate type.

关键词： Detector design and construction technologies and materials solid state detec-tors Detector modelling and simulations II (electric fields charge transport multiplication and induction pulse formation electron emission etc )

来源：评论

学校读者我要写书评

暂无评论

A Comprehensive ASIC/FPGA Prototyping Environment for Exploring Embedded Processing Systems for Advanced Driver Assistance applications 14

A Comprehensive ASIC/FPGA Prototyping Environment for Explor...

引用

International conference on Embedded Computer Systems - Architectures, Modeling, and Simulation (SAMOS)

作者： Giesemann, Florian Paya-Vaya, Guillermo Blume, Holger Limmer, Matthias Ritter, Werner Leibniz Univ Hannover Inst Microelect Syst D-30167 Hannover Germany Daimler AG Vis Enhancement D-89081 Ulm Germany

ISBN: (纸本)9781479937707

The development of complex algorithms for advanced driver assistance systems is a challenging task, due to the high innovation rate and processing demands of applications in this field. The development is usually supported by a software development framework that provides an infrastructure (e.g., access to sensor data) that simulates and evaluates the algorithms. One problem, especially with computationally intensive algorithms, is the slow simulation speed. This paper presents a prototyping environment that connects a software development framework with a FPGA-based hardware platform. This allows implementing computationally intensive tasks in hardware. The proposed rapid prototyping system not only reduces the simulation time, thereby allowing the software designer to evaluate algorithmic parameters with quicker feedback, but also allows verifying and evaluating hardware modules for rapid prototyping. A case study is presented in which a traffic sign detection algorithm is implemented on a soft-core processor. By using the hardware implementation the simulation was accelerated by a factor of 65, compared to the pure software implementation.

关键词： rapid prototyping FPGA design space exploration hardware-software-co-simulation

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of a Thermionic Thermal Detector at 400K, 300K, and 200K

Performance analysis of a Thermionic Thermal Detector at 400...

引用

Infrared Technology and applications XXV conference

作者： Murguia, JE Tedrow, PK Shepherd, FD Leahy, D Weeks, MM Solid State Sci Corp Hollis NH 03049 USA

ISBN: (纸本)0819431729

The Thermionic Thermal Detector (TTD) senses infrared radiation by temperature modulation of thermionic emission current within a silicon Schottky diode. The thermionic emission current is the well known Richardson dark current. The TTD operates in the LWIR band. The physics of TTD operation is distinct from that of silicon Schottky barrier MWIR detectors, such as PtSi/Si which are based on internal photoemission. In fact, the TTD has high detection efficiency. The architecture of a TTD array is very similar to that of microbolometer arrays, except the detector elements are thermally isolated Schottky diodes, operating under reverse bias. When the TTD array is illuminated by an infrared image, the temperature of individual detector elements will vary with the local incident power of the image. Under small signal conditions, the dark current of individual detectors will vary as temperature, resulting in an electronic image of the infrared scene. The reverse bias dark current of a Schottky diode varies exponentially with temperature. For the small temperature variations observed on the focal plane of an uncooled sensor, this variation is approximately linear. The rate of temperature variation is determined by the Schottky barrier potential and, to a lesser extent by the applied bias potential. The operating temperature range of the detector can be designed into the device by selecting a metal with the appropriate Schottky barrier height. Experimental Schottky barrier heights were determined using Richardson dark current activation energy analysis. Devices optimized for operation at room ambient temperature have a 6%/K temperature coefficient. The use of Schottky diode thermionic emission for uncooled infrared imaging offers several advantages relative to current technology. TTD manufacture is 100% silicon processing compatible. Schottky barrier based thermionic emission arrays have the same uniformity characteristics as MWIR Schottky barrier photoemissive arrays. Oper

关键词： thermal imaging uncooled detection Schottky diode thermionic emission metal-silicide arrays

来源：评论

学校读者我要写书评

暂无评论

Recent work in optical chemical sensor development

Recent work in optical chemical sensor development

引用

23rd International conference on Environmental Systems

作者： Tabacco, Mary Beth Digiuseppe, Thomas G. GEO-CENTERS Inc.

Recent efforts to develop integrated, multi-sensor chemical detection systems for life support and life science applications are presented. sensors have been developed using a variety of transduction mechanisms, but the focus of the work described here is on optical chemical sensor development. Particular success has been realized in the area of fiber optic (optrode) sensors for monitoring pH in hydroponic growth media;in low (parts per billion) level detection of both atmospheric and dissolved NH3;and for monitoring CO2. In addition multichannel optoelectronic interfaces, employing all solid state optical sources and detectors have been designed and tested for use with these sensors. Recent work to assess the feasibility of using self-assembled monolayers and molecular assemblies, combined with microlithographic patterning techniques, for the detection of specific metals and anions in solution will also be presented. © Copyright 1993 Society of Automotive Engineers, Inc.

关键词： Self assembled monolayers

来源：评论

学校读者我要写书评

暂无评论

Economics of high-duty-factor, high-average-power diode-pumped solid-state-lasers (DPSSLs)

Economics of high-duty-factor, high-average-power diode-pump...

引用

Annual Meeting of the IEEE Lasers and Electro-Optics Society

作者： Krupke, W.F. Solarz, R.W. Beach, R.J. Emanuel, M.A. Benett, W.J. Univ of California Livermore United States

ISBN: (纸本)0780312635

We are engaged in the development of a suite of prototype high-average-power, high-duty-factor DPSSLs for use in various military and civilian applications: 1) 100-1000 watt, near-diffraction-limited, high-repetition-rate, free-running and Q-switched neodymium doped crystals lasers for industrial-scale-precision-manufacturing applications, and as a source for soft x-ray lithography, 2) 100-1000 watt, high-repetition-rate, Q-switched, harmonically-doubled and tripled crystal lasers for tactical military applications, as dye laser pump sources for advanced laser isotope separation applications, and for large scale precision manufacturing applications, 3) 100-watt, direct-diode-pumped tunable crystal lasers for remote-sensing applications, and in the longer term, 4) 105 to >106 watt-class crystal lasers for (military) theater missile defense and (civilian) inertial confinement fusion power reactor applications. These lasers generally require 2-D diode pump arrays producing up to 500 watts of average power per cm2, comprised of linear bar arrays emitting up to 100 watts of average power per cm, with duty-factors ranging from 25% to 100% (CW). Because the pump array is anticipated to be the biggest cost driver in these laser systems, we emphasize array manufacturing process development and costing in this presentation. We forego the more business-contingent topic of product pricing.

关键词： Semiconductor lasers

来源：评论

学校读者我要写书评

暂无评论

Metal-Organic Framework and Molybdenum Oxide Hybridized Nanocomposite-Based Triboelectric Biomotion sensor for Wearable Self-Powered Human IOT applications 22

Metal-Organic Framework and Molybdenum Oxide Hybridized Nano...

引用

22nd International conference on solid-state sensors, Actuators and Microsystems, Transducers 2023

作者： Rana, S.M. Sohel Faruk, Omar Islam, M. Robiul Kim, HongSeok Zahed, Md Abu Park, Jae Y. Kwangwoon University Department Of Electronics Engineering Seoul Korea Republic of

ISBN: (纸本)9784886864352

Herein, an orthorhombic molybdenum oxide (α-MoO3) nanowire and metal-organic framework (MOF-525) decorated MOF-525@Silicone@α-MoO3 nanocomposite based stretchable triboelectric nanogenerator (TENG) is implemented for self-powered wearable biomotion monitoring. The prepared MOF-525@α-MoO3 enhances the capacitance and provides strong charge accumulation due to the synergistic effect between the heterostructure network and improved charge density of the nanocomposite. Also, by including oxygen atoms, and a large internal surface area, hybridized tribo-materials increase the charge-trapping and charge-inducing ability. Knitted fabrics provide flexible electrodes and a 3D-printed microstructure improves contact area. The resulting self-powered wearable biomotion sensor (SPWBS) exhibited ultrahigh stretchability (245%), sensitivity (105.18 V/KPa), and power density (18.3 W/m2). The SPWBS was successfully demonstrated for real-time, non-invasive skin-level biomotion sensing and joint-associated activity monitoring via smartphone applications. © 2023 IEEJ.

关键词： high sensitivity MOF-525@Silicone@α-MoO3 nanocomposite self-powered biomotion sensor stretchable triboelectric nanogenerator wearable

来源：评论

学校读者我要写书评

暂无评论

Qualitative and quantitative identification of H₂S/NO₂ gaseous components in different reference atmospheres using a metal oxide sensor array

引用

sensorS AND ACTUATORS B-CHEMICAL 2004年第1-2期103卷 403-408页

作者： Helli, O Siadat, M Lumbreras, M Univ Metz IPEM CLOES LICM F-57070 Metz France

Many environmental problems due to atmospheric pollution have increased the interest for the development of portable multisensor systems (electronic noses) for gas detection applications. In this way, we use a metal oxide sensor array dedicated to two industrial and environmental gases, alone or mixed. These gases have an antagonistic influence on the sensor layers, reducing (H2S) or oxidising (NO2). So the sensor time-responses present different behaviour according to the (low or high) concentration of the gases. In addition, humidity presents a notable reducing influence. We present in this work a new method to discriminate successfully the concentration of the atmospheric components, in three different reference atmospheres taking into account humidity and carbon dioxide. (C) 2004 Elsevier B.V. All rights reserved.

关键词： gas sensor humidity effect electronic nose environmental pollution discriminant factorial analysis

来源：评论

学校读者我要写书评

暂无评论

Session 2 overview: mm-wave beamforming & RF building blocks

Session 2 overview: mm-wave beamforming & RF building blocks

引用

IEEE International conference on solid-state Circuits (ISSCC)

作者： Bud Taddiken Andreas Kaiser Microtune Garland TX USA IEMN-ISEN Lille France

Several thematic areas are covered in this session. Advances in integrated phased arrays for millimeter-waves are described in the first part, followed by circuit techniques for mobile communications, and finally an u... 详细信息

关键词： Array signal processing Radio frequency Phased arrays Circuits Bandwidth Phase noise sensor arrays Mobile communication CMOS technology Voltage-controlled oscillators

来源：评论

学校读者我要写书评

暂无评论

Using a Minimum Set of Wearable sensors to Assess Quality of Movement in Stroke Survivors 17

Using a Minimum Set of Wearable Sensors to Assess Quality of...

引用

2nd IEEE/ACM International conference on Connected Health - applications, Systems and Engineering Technologies (CHASE)

作者： Sapienza, Stefano Adans-Dester, Catherine O'Brien, Anne Vergara-Diaz, Gloria Lee, Sunghoon Patel, Shyamal Black-Schaffer, Randie Zafonte, Ross Bonato, Paolo Meagher, Claire Hughes, Ann-Marie Burridge, Jane Demarchi, Danilo Harvard Med Sch Dept PM&R 300 First Ave Charlestown MA 02129 USA Univ Southampton Dept Hlth Sci Univ Rd Southampton SO17 1BJ Hants England Politecn Torino Dept Elect & Telecommun Cso Duca Abruzzi 24 I-10129 Turin Italy

ISBN: (纸本)9781509047222

The study herein summarized was focused on the development of a method to derive reliable estimates of the quality of movement of stroke survivors via the analysis of wearable sensor data. Data was collected from 34 subjects while they performed a battery of functional movements that are part of a standard clinical assessment. The quality of movement was assessed using the Functional Ability Scale, a validated clinical scale based on visual observation of movement patterns by a clinical expert. Two wearable sensors were positioned on the stroke-affected wrist and the sternum, respectively. Wearable sensor data was processed to derive data features that were in turn used as input to a regression-based Random Forest algorithm that was trained using a leave-one-subject-out method. The Random Forest algorithm generated estimates of the Functional Ability Scale scores. We found out that the estimates generated via analysis of the wearable sensor data were highly correlated (R-2=0.97) with the scores generated by the clinical expert.

关键词： Estimation Field programmable gate arrays OFDM Modulation Filtration Clocks Signal processing algorithms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：