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检索条件"机构=Advanced Sensor Technology"

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Silicon sensors for automotive applications

Silicon sensors for automotive applications

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International Conference on Solid State sensors and Actuators (TRANSDUCERS)

作者： R.E. Sulouff Advanced Sensor Technology Siemens Automotive Auburn Hills MI USA

The author examines the strategic, economic, and technological considerations for silicon sensors for automotive applications. The view toward the 1990s as the decade of increased silicon sensors for automotive applications is examined in light of the economic and technological tradeoffs. It is pointed out that silicon sensors have demonstrated their value as Hall effect and pressure sensors for more than ten years and several hundred applications. The pressure sensor opportunities are continuing to grow and provide a technological base for growth in silicon accelerometers.< >

关键词： Silicon Automotive applications Automotive engineering Fuel economy Costs Intelligent sensors sensor systems Economics Optimized production technology Control systems

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Research on Convolutional Neural Network Model for Sonar IMAGE Segmentation 2

Research on Convolutional Neural Network Model for Sonar IMA...

引用

2nd International Conference on Mechanical, System and Control Engineering, ICMSC 2018

作者： Jiao, Shengxi Zhao, Chunyu Xin, Ye Northeast Electric Power University Advanced Sensor Technology Institute Jilin Jilin132011 China Northeast Electric Power University Fault Diagnosis Institute Jilin Jilin132011 China

The speckle noise of sonar images affects the human interpretation and automatic recognition of images seriously. It is important and difficult to realize the precision segmentation of sonar image with speckle noise in the field of image processing. Full convolution neural network (FCN) has the advantage of accepting arbitrary size image and preserving spatial information of original input image. In this paper, the image features are obtained by autonomic learning of convolutional neural network, the original learning rules based on the mean square error loss function is improved. Taking the pixel as the processing unit, the segmentation method based on FCN model with relative loss function(FCN-RLF) for small submarine sonar image is proposed, sonar image pixel-level segmentation is achievied. Experimental results show that the improved algorithm can improve the segmentation accuracy and keep the edge and detail of sonar image better. The proposed model has better ability to reject sonar image speckle noise. © The Authors, published by EDP Sciences, 2018.

关键词： Neural network models

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Low-Cost Germicidal UV LED as Candidate Light Source for Portable and Field Spectrometer 1

Low-Cost Germicidal UV LED as Candidate Light Source for Por...

引用

1st International Symposium on Physics and Applications, ISPA 2020

作者： Sakti, S.P. Anggraeni, D. Putro, T. Sensor Technology Laboratory Department of Physics Brawijaya University Jl. Veteran Malang 65145 Indonesia Collaborative Research Centre for Advanced Systems and Material Technology Brawijaya University Jl. Veteran Malang 65145 Indonesia

Ultraviolet Light Emitting Diode (UV LED) is becoming popular, especially during the Covid-19 pandemic. UV LED has a specific wavelength with relatively narrow bandwidth, especially the one that has a shorter wavelength. On the other hand, UV LED has advantages in its low power consumption, compact size, and longer lifetime. This work shows that a wider bandwidth can be elicited by combining multiple UV LED sources. We have measured several low-cost UV LED, which is used as a germicidal lamp using a portable spectrometer that can detect a wavelength from 200 nm to 850 nm. The combined UV LED spectrum light ranges from 254 nm UVC to 400 nm UVA. The light spectrum produced by the LED shows a form of the Gaussian distribution model. Some LEDs have a peak wavelength at UVC around 270nm, and LEDs have a peak wavelength around 400nm at UVA. We can conclude that the low-cost UV LED can be used as a light source for portable or field spectrometers for specific wavelength. © Published under licence by IOP Publishing Ltd.

关键词： Spectrometers

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Generalization of Reflection Modeling in Complex Cable Structure with Impedance Mismatches 17

Generalization of Reflection Modeling in Complex Cable Struc...

引用

17th International Workshop on Impedance Spectroscopy, IWIS 2024

作者： Haddad, Dhia Ben Amara, Najoua Essoukri Kanoun, Olfa Technische Universität Chemnitz Professorship Measurement and Sensor Technology Chemnitz Germany Université de Sousse Ecole Nationale d'Ingénieurs de Sousse LATIS- Laboratory of Advanced Technology and Intelligent Systems Sousse4023 Tunisia

ISBN: (纸本)9798331507626

Cable networks are essential in modern systems, but they can develop defects due to environmental factors or wear, leading to signal degradation or reduced performance. These defects cause signal reflections in transmission lines due to impedance mismatches, either within the cables or between the cables and their port loads. Such reflections can result from junctions, soft faults (partial impedance changes), or hard faults, i.e., open or short circuits. Diagnosing these faults, especially using Time-Domain Reflectometry (TDR), requires accurately modeling how impedance mismatches affect signal reflections. This paper presents a model that takes a comprehensive approach to addressing various sources of impedance mismatches. It covers junctions, soft and hard faults, and mismatches between cables and connected devices. The model's thoroughness is evident in its ability to handle complex scenarios such as heterogeneous junctions, soft faults, multi-path reflections, input port reflections, and multi-load reflections. Additionally, it evaluates signal reflection measurability based on the components of the propagation path, further enhancing its robustness. The model's accuracy is validated through simulations using the distributed RLCG cable model, comparing predicted reflection values with simulated signals. The results show strong agreement, confirming the model's effectiveness in diagnosing faults in complex cable networks. This should instill confidence in the model's practical application, as it accurately correlates signal reflections with specific defects, paving the way for efficient fault diagnosis. © 2024 IEEE.

关键词： Reflectometers

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Surface temperature distribution of aluminum fins heated using thermoelectric 5

Surface temperature distribution of aluminum fins heated usi...

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5th Asian Conference on Thermoelectrics and the 6th Southeast Asia Conference on Thermoelectrics, ACT and SACT 2020

作者： Triqadafi, A.O. Zafirah, T.N. Kusuma, F.J. Sakti, S.P. Sensor Technology Laboratory Department of Physics Brawijaya University Jl. Veteran Malang65145 Indonesia Collaborative Research Centre for Advanced Systems and Material Technology Brawijaya University Jl. Veteran Malang65145 Indonesia

The thermoelectric device has advantages for heating and cooling element. The thermoelectric can be used easily as a heater. In applications for small volumes, the temperature distribution of the heating element is necessary to ensure that different samples at different locations receive the same heat treatment. This experiment shows an aluminum fin's temperature distribution heated using different heat amount. TEC-12706 was used to heat an aluminum fin with a dimension of 40x40x20 mm. The aluminum was placed in an chamber made using a 3D printer with a material of ABS. The surface temperature distribution of the aluminum fin was measured using a thermal camera Fluke-Ti20S. The measurement data showed that the fin's surface temperature is not the same at all points at the surface, especially the center and the edge. During the heating process, the temperature at the aluminum fin's center has a higher temperature than the fin's edge. The lower the duty cycle used, the better the temperature distribution on the heatsink. For 50% duty cycle or more, the temperature variation in the middle with a square dimension of 20x20 mm has a temperature variation of less than 1°C. Therefore, if the temperature distribution between points is important, it is recommended to use an aluminum fin around the center. © 2021 Institute of Physics Publishing. All rights reserved.

关键词： Temperature distribution

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Wide bandwidth vivaldi antenna arrays - Some recent developments

Wide bandwidth vivaldi antenna arrays - Some recent developm...

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European Conference on Antennas and Propagation: EuCAP 2006

作者： Schaubert, D.H. Kasturi, S. Elsallal, M.W. Van Cappellen, W. Antennas and Propagation Laboratory Center for Advanced Sensor and Communication Antennas University of Massachusetts Amherst MA 01002 United States Advanced Technology Center Rockwell Collins Cedar Rapids IA 52498 United States ASTRON 7990 AA Dwingeloo Netherlands

ISBN: (纸本)9290929375

Arrays of Vivaldi tapered slot antennas have become an established technology for wide bandwidth scanning arrays. Antenna bandwidths of 10:1 with scanning to 45° are achievable. To design the array, mutual coupling must be properly included and, in fact, utilized. Therefore, problems have arisen when these arrays are fabricated as independent subarrays without electrical contact between adjacent elements or subarrays. Nevertheless, it is highly beneficial to consider arrays with gaps because it is much easier to fabricate and to repair the array if the elements can be inserted or removed individually or in small groups. This paper presents results of some recent studies of Vivaldi antenna arrays wherein there are gaps between elements and/or subarrays. Such gaps between all elements of an array usually produce severe impedance anomalies that disrupt the operating band of the array. Employing mirror symmetries in arrays of Balanced Antipodal Vivaldi Antennas has eliminated these anomalies over a substantial portion of the operating frequency range with no apparent detrimental effects.

关键词： Antenna arrays

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Implementation of Object Tracking using YOLOv7 Pose Estimation for Human Activity Recognition in Fabrication Yard via CCTV Videos 5

Implementation of Object Tracking using YOLOv7 Pose Estimati...

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5th International Conference on Smart sensors and Application, ICSSA 2024

作者： Madiahlagan, Sharitta Norzaidi, Farid Azhari Zakaria, Ammar Yeon, Ahmad Shakaff Ali Kamarudin, Latifah Munirah Zakaria, Syed Muhammad Mamduh Syed Ismail, Muhammad Khalid, Hafizal Baharom, Muhammad Azri Ahmad Amin, Ahmad Helmi M. Zolkipli, Khairul Hafiz Abdullah, Asrul Sani Faculty of Electrical Engineering and Technology University Malaysia Perlis Arau Malaysia Centre of Excellence for Advanced Sensor Technology University Malaysia Perlis Arau Malaysia Project Excellence PETRONAS Kuala Lumpur Malaysia Project Delivery and Technology PETRONAS Kuala Lumpur Malaysia

ISBN: (纸本)9798350354294

A new dataset is created in a fabrication yard environment for human activity classification. YOLOv7 object detection model is used to identify 5 classes which are welding, grinding, standing, sitting and walking. Five experiments were conducted, and Experiment 5 achieved the highest mean Average Precision (mAP_0.5) of 0.621. The mAP@0.5 value is the most critical metric as it reflects the model's ability to balance precision and recall across all confidence thresholds. This higher mAP@0.5 suggests that Experiment 5's model is better at accurately identifying. However, YOLOv7 object detection posed limitation to differentiate classes for sitting, standing and walking. The implementation of pretrained models YOLOv7 Object Tracking and YOLOv7 Pose Estimation is done respectively with YOLOv7 Object Detection to improve the detections. The YOLOv7 Object Tracking showed significant improvement in the detections of standing and walking but had limitation for sitting. The YOLOv7 Pose Estimation which uses the heuristic method showed significant improvement in the detections of standing, sitting and walking compared to YOLOv7 Object Tracking. © 2024 IEEE.

关键词： Heuristic methods

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Implementation of index for real-time monitoring indoor air quality system

Implementation of index for real-time monitoring indoor air ...

引用

International Conference on Electronic Design (ICED)

作者： Shaharil Mad Saad Ali Yeon Md Shakaff Abdul Rahman Mohd Saad Azman Muhamad Yusof Kamarudin Centre of Excellence for Advanced Sensor Technology (CEASTech) Universiti Malaysia Perlis (UniMAP) Malaysia Centre of Excellence for Advanced Sensor Technology (CEASTech) Universiti Malaysia Perlis Arau Perlis MY

Indoor air quality is a rising issue these days. People are becoming are of the importance of indoor air quality. This paper further advances the technology for indoor air quality surveillance by adding an index feature to it. The index feature, accompanied with real-time monitoring system is very useful in giving the real-time alert to the users on the conditions of the current indoor air quality. This index is very handy because human being's ability to detect the changes in the air quality is limited while the changes in the air quality may be rapid. The index helps the users to recognize the conditions of the air instantly by giving four signals, good, normal, unhealthy and hazardous. The index is developed based on the index used in the outside environment but by emphasizing on the internal air quality elements.

关键词： Indexes Monitoring Wireless sensor networks Robot sensing systems Temperature measurement Temperature sensors

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Nanophotonic sensor implants with 3D hybrid periodic-amorphous photonic crystals for wide-angle monitoring of long-term in-vivo intraocular pressure

Nanophotonic sensor implants with 3D hybrid periodic-amorpho...

引用

International Electron Devices Meeting (IEDM)

作者： R. H. Siddique L. Liedtke H. Park S. Y. Lee H. Raniwala D. Y. Park D. H. Lim H. Choo Image Sensor Lab Samsung Semiconductor Inc. Pasadena USA Caltech Pasadena CA USA Samsung Medical Center Seoul Korea Samsung Advanced Institute of Technology Suwon Korea

ISBN: (数字)9781728188881

ISBN: (纸本)9781728188898

Glaucoma, one of the leading cause of irreversible blindness, is largely caused by an elevated intraocular pressure (IOP). However, current IOP monitoring techniques inherit major disadvantages such as imprecision, no real or long time monitoring, and difficult readout. Here, we report on a highly miniaturized (200 um thick) optomechanical nanophotonic sensor implant for long-term, continuous and on-demand IOP monitoring. This IOP sensor is made of a flexible 3D hybrid photonic crystals (HPC) that functions as a pressure-sensitive optical resonator (0.1 nm/mm Hg) and delivers IOP readings when interrogated with near-infrared light with an average accuracy of 0.56 mm Hg over the range of 0-40 mm Hg. A new fabrication process is developed using colloidal self-assembly leading to a single step formation of hybrid periodic and amorphous layers exploiting the inverse process of a drying "coffee-stain" effect. The HPC results in a wide-angle strong resonance of ±40° ensuring an easy and accurate remote and long readout distance. 8 sensors were mounted inside the anterior chamber in New Zealand white rabbits and provided continuous, accurate measurements of IOP with handheld detector for up to 6 months with no signs of inflammation.

关键词： Three-dimensional displays Sensitivity Displacement measurement Optical variables measurement Mercury (metals) Monitoring Thickness measurement

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Balancing the power of multimedia information retrieval and usability in designing interactive TV 08

Balancing the power of multimedia information retrieval and ...

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1st International Conference on Designing Interactive User Experiences for TV and Video, UXTV08

作者： Lee, Hyowon Ferguson, Paul Gurrin, Cathal Smeaton, Alan F. O'Connor, Noel E. Park, Heeseon Centre for Digital Video Processing CLARITY: Centre for Sensor Web Technologies Dublin City University Glasnevin Dublin 9 Ireland Samsung Advanced Institute of Technology Samsung Electronics Korea Republic of

ISBN: (纸本)9781605581002

Steady progress in the field, of multimedia information retrieval (MMIR) promises a useful set of tools that could provide new usage scenarios and features to enhance the user experience in today's digital media applications. In the interactive TV domain, the simplicity of interaction is more crucial than in any other digital media domain and ultimately determines the success or otherwise of any new applications. Thus when integrating emerging tools like MMIR into interactive TV, the increase in interface complexity and sophistication resulting from these features can easily reduce its actual usability. In this paper we describe a design strategy we developed as a result of our efforts in balancing the power of emerging multimedia information retrieval techniques and maintaining the simplicity of the interface in interactive TV. By providing multiple levels of interface sophistication in increasing order as a viewer repeatedly presses the same button on their remote control, we provide a layered interface that can accommodate viewers requiring varying degrees of power and simplicity. A series of screen shots from the system we have actually developed and built illustrates how this is achieved. Copyright 2008 ACM.

关键词： Digital storage

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