2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)最新文献_第4页

Applicability of an Optimized Fiber Optic Smart Structure 一种优化的光纤智能结构的适用性

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.35

Yu Fan, M. Kahrizi

{"title":"Applicability of an Optimized Fiber Optic Smart Structure","authors":"Yu Fan, M. Kahrizi","doi":"10.1109/ICMENS.2004.35","DOIUrl":"https://doi.org/10.1109/ICMENS.2004.35","url":null,"abstract":"In recent years, fiber optic smart structure is widely studied because of its intrinsic benefits [1] [2]. One of the most striking evolvements is the technology, of which FBG (Fiber Bragg Grating) sensor systems are embedded in fiber reinforced composite materials, so that any ambience induced responses of the host structures can be monitored in real time, consequently proper actuations are initiated. Thus a neural system is realized. This work reports an entire optimization process of the FBG sensors embedded in Graphite/Epoxy composite material. Moreover, performance of the sensor system was observed and the applicability is discussed. Due to the mechanically orthotropic characteristics of the Graphite/Epoxy composite material, two FBG sensors were orthogonally embedded along the two principle axes in mid-plane of the specimen. When strain load was applied along one of the axes, longitudinal and shear responses of the structure were simultaneously monitored, hence its orthotropic properties were determined. Further, any randomly oriented strain applied to the specimen will be analytically quantified along the two sensors. Recurring to surface mounted resistance strain gage concept, the embedded FBG strain gage array was recalibrated, and its sensing alterability is quantified. This work tends to provide a quantitative discussion on FBG sensors’ residual erroneousness after an optimized embedment, the conclusion may give designers a reference to properly interpret FBG sensors’ performances, in case they are used as an embedded strain gage.","PeriodicalId":344661,"journal":{"name":"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125014696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Modeling of Surface Forces between Micron-Sized Objects in Dry Condition 微米级物体在干燥条件下的表面力建模

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.97

A. Hariri, J. Zu, R. Mrad

引用次数: 5

Design, Modeling and Testing of Polysilicon Optothermal Actuators for Power Scavenging Wireless Microrobots 电力清除无线微型机器人多晶硅光热驱动器的设计、建模与测试

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.50

Francis R. Szabo, Paul E. Kladiti

{"title":"Design, Modeling and Testing of Polysilicon Optothermal Actuators for Power Scavenging Wireless Microrobots","authors":"Francis R. Szabo, Paul E. Kladiti","doi":"10.1109/ICMENS.2004.50","DOIUrl":"https://doi.org/10.1109/ICMENS.2004.50","url":null,"abstract":"The biggest hurdle to be solved, in order to create autonomous Micro-Electro-Mechanical Systems (MEMS) microrobots, is generating power for their actuator engines. Most present actuators require orders of magnitude more power than is presently available from micropower sources. To enable smaller microrobots, this research investigated a simplified power concept that eliminates the need for on-board power supplies and control circuitry by using actuators powered wirelessly from the environment. The use of lasers to directly power micrometer scale silicon thermal actuators was explored. Optothermal actuators, intended for use on a small wirelessly propelled autonomous MEMS microrobot, were modeled, designed, fabricated and tested, using the PolyMUMPs silicon-metal chip fabrication process. A 760 µm by 710 µm prototype MEMS polysilicon-based microrobot, using optothermal actuators, was designed, fabricated and tested. Each of its parts was demonstrated to provide actuation using energy from an external laser. The optothermal actuators provided 2 µm of deflection to the microrobot drive shaft, with 60 mW of pulsed laser power. The results of these experiments demonstrated the validity of a new class of wireless polysilicon actuators for MEMS devices, which are not directly dependant on electrical power for actuation. The experiments also demonstrated a potentially viable design that could be used to propel the world’s smallest autonomous MEMS microrobot.","PeriodicalId":344661,"journal":{"name":"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114969819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Hydrolyzable Polyrotaxanes Consisting of β-Cyclodextrins and Pluronic® for Drug Delivery 由β-环糊精和Pluronic&#174组成的可水解聚轮烷用于给药

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.1508987

A. Ito, T. Ooya, N. Yui

引用次数: 0

Synthesis and Characteration of Phenolic Resin/Montmorillonite Nanocomposites 酚醛树脂/蒙脱土纳米复合材料的合成与表征

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.138

Yujun Zhang, Mao-Peng Lin, Fengfu Li, Wen Wang, Zhenhao Jin

引用次数: 0

PEGylated-poly-l-lysine Dendrimers for Delivery of Chloroquine Phosphate 聚酰基化聚赖氨酸树状大分子递送磷酸氯喹

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.123

D. Bhadra, S. Bhadra, N. K. Jain

引用次数: 5

Tracking Promyelocytic Leukemia Nuclear Bodies for Disease Detection: A Proof of Concept via Filtering 跟踪早幼粒细胞白血病核体用于疾病检测:通过过滤的概念验证

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.147

J. Hailes, M. Kouritzin, R. Marsh, J. McCrosky

引用次数: 0

Active New Microvalve Based on Phase Change Effect 基于相变效应的新型主动微阀

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.26

S. Bogdanov, X. Riedl, N. Schwesinger

{"title":"Active New Microvalve Based on Phase Change Effect","authors":"S. Bogdanov, X. Riedl, N. Schwesinger","doi":"10.1109/ICMENS.2004.26","DOIUrl":"https://doi.org/10.1109/ICMENS.2004.26","url":null,"abstract":"In this work we will show a new type of a microvalve that uses the phase change effect in order to control the flow of a fluid. The valve consists just of a micro channel that possesses a heating element made of copper at one side. Furthermore, the valve can be cooled by a special external cooling system. If the fluid flowing trough the channel gets a temperature below the phase transition temperature it becomes a solid. The flow of the former fluid will be stopped. By means of an electrical current applied on the heating element the flow can be restored. We have investigated in this work the flow of melted wax. The melting temperature is above 80°C. The viscosity of the wax changes from 50mPas at 80°C to 3mPas at 140°C. We investigated new microvalves with channel dimensions between 20 mm and 90 mm in diameter. Two types of the channels, with circled and elliptical shaped cross-section, have been studied, too. The wax temperature varies from 80°C to 140°C. A cooling fluid that possesses a temperature of 20°C cooled the valve. The time constant of cooling and flow stopping depends on the material of the channel, the fluid temperature and the channel geometry. It can vary between 30ms to 120ms. Technological procedures for production of such one he new microvalve can be produced by means of silicon microtechnologies.","PeriodicalId":344661,"journal":{"name":"2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133995833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Alternative Capacitor Topologies for MEMS Switches Fabricated with Printed Circuit Technology 采用印刷电路技术制造MEMS开关的备选电容拓扑分析

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.31

B. Deken

引用次数: 0

Dynamic Response of a Microbeam-Supported Microplate under Interfacial Microwave Load 界面微波载荷作用下微柱支撑微孔板的动态响应

2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04) Pub Date : 2004-08-25 DOI: 10.1109/ICMENS.2004.55

A. Allievi

引用次数: 0