文献检索综合报告

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文献检索综合报告

综 合 检 索 报 告

姓名 __ 班级 ____ 学号 ________

检索课题(中文) _____光纤传感器及其应用_____

(英文)___ optical fiber sensor and its application____ 一、检索策略

1、检索词:主题词(中文):光纤传感(英文): optical fiber sensor

相关词:(中文)__ 光纤__ (英文)__ optical fiber___ 副主题词:(中文)__应用__(英文)_application_ 2、构造检索式(布尔逻辑表达式或网络检索式) 光纤传感and应用

二、检索来源(本文所查数据库名或其它来源) 万方 Springer OhioLINK 三、检索结果:

分别写出篇名、作者、文献来源(期刊指刊名、年、卷期;专利指专利号;学位论文指授予单位,标准指标准号等文摘形式)及摘要(有原文请注明),所有数据库均检索近6年的文献。 1、中文期刊(找5篇):(必备)

? 篇名:基于布里渊散射的分布式光纤传感系统的应用 作者:李星蓉 李永倩

文献来源:电力系统通信 2009, 30(12)

摘要:介绍了分布式光纤传感的基本原理,对布里渊光强与温度和应变之间的关系进行了仿真,设计了基于自发布里渊散射的光纤传感系统,对G.652光纤进行了加热和受拉力状态下的试验,并对采集的信号进行了分析,验证了光强度与温度和拉力的关系;探讨了分布式光纤传感系统的应用前景. ? 篇名:裂缝光纤传感的工程应用 作者:吴永红 蔡海文 刘浩吾 吴中如 文献来源:光电子2激光 2007, 18(12)

摘要:光纤传感的灵敏性及工程\存活率\是其工程实用化的两个关键技术参量,对光纤混凝土结构两种常用裂缝光纤传感光信号对裂缝宽度的灵敏性与存活

率进行了实验研究,对光纤涂覆层对灵敏性影响的大小和机理进行了分析,并制作了灵敏性与存活率均较高的光纤试验样本,与裂缝成45°夹角时,相比于等直径的普通二次涂覆粗光纤(10/125/900μm),样本的灵敏性提高近65%,而存活率亦高出约15%.研究结果可为裂缝光纤传感的优化设计和工程应用提供了基本参照.

? 篇名:光纤传感测量系统在超导转子旋转装置中的应用 作者:胡新宁 王秋良 崔春艳 韩立 鞠昱 王欣 谢亮 文献来源:光学精密工程 2008, 16(11)

摘要:介绍了超导转子旋转驱动原理以及应用在超导转子旋转装置中的一种光纤传感测量系统.光纤传感测量系统包括微位移光纤传感器、转速光纤传感器、电机控制光纤传感器和信号读取图形,该系统能够进行转子悬浮微位移和旋转速度的测量并提供转子旋转所需的控制信号.在4.2 K低温下进行了转子悬浮和旋转实验,超导球形转子悬浮微仪移测量分辨率为10μm,转子转速达到了1 365 r/min.实验结果为进一步应用光纤传感测量系统精确监控超导转子工作姿态提供了参考.

? 篇名:光纤传感网络在边坡稳定监测中的应用研究 作者:丁勇 施斌 崔何亮 索文斌 刘杰 文献来源:岩土工程学报 2005, 27(3)

摘要:本文设计了一种新型的光纤传感网络.该网络利用分布式光纤应变监测技术(BOTDR),将光纤(光缆)按一定方式布设成网络,埋入边坡表面以下一定位置,通过监测光纤(光缆)的应变变化,推算出边坡的表面变形.对室内模型进行

的加载实验表明,该网络对悬挂重物而引起的表面变形很敏感,且能够精确分析发生异常的区域和应变大小,进而对表面变形状态进行三维模拟. ? 篇名:分布式光纤传感技术及其应用 作者:刘德明 孙琪真

文献来源:激光与光电子学进展 2009, 46(11)

摘要:分布式光纤传感技术是近年来光纤传感领域的研究热点.介绍了该领域的研究成果,包括基于光纤后向散射光时域及频域反射技术、基于光纤瑞利散射偏振光时域反射、基于长距离光干涉技术的分布式光纤传感以及基于非同和全同光纤布拉格光栅复用的准分布式光纤传感技术;论述了分布式光纤传感系统的工作原理、特点及性能;介绍了其在民用工程结构、航空航天、船舶工业、电力工业、石油化工业和医学等各个领域中的应用.

2、外文期刊(找5篇):(必备)

1) 篇名:Technology of fiber-optic temperature sensing and its

application in temperature measuring of gob area 作者:Jing-wen Liu and Li-ming Huang

文献来源:Journal of Coal Science and Engineering Volume 17, Number 2 (2011) Abstract:

Based on advantages of technology of distributive fiber-optic temperature sensing and specific to its applications in monitoring mine conflagration, the corresponding Processes such as connection arrangement, signal transmission and monitoring were illustrated. As applied in Sitai Coal Mine of Datong Coal Mine Group Co., this method is effective and accurate

and could provide reliable gist for monitoring spontaneous combustion in gob area of mines.

2) 篇名:optical fiber sensing system and its applications

作者:Yuliang Liu, Wentao Zhang, Tuanwei Xu, Jun He, Faxiang Zhang and Fang Li

文献来源:Photonic Sensors Volume 1, Number 1 (2011) Abstract :

An overview of fiber laser sensing is presented. The design and the characteristics of distributed feedback (DFB) fiber lasers for high performance sensing applications are described. Demodulation techniques based on unbalanced fiber interferometer are discussed, especially for the noise level, the dynamic range, and the crosstalk in dense-wavelength-division multiplexing. Finally, the fiber laser sensing system configurations and field demonstrations for different applications are illustrated.

3) 篇名:Evaluation of fiber optic sensors for remote health monitoring

of bridge structures 作者:Ebrahim Mehrani, Ashraf Ayoub and Amir Ayoub

文献来源:Materials and Structures Volume 42, Number 2 (2009) Abstract:

Health monitoring of civil infrastructure systems has recently emerged as a powerful tool for condition assessment of structural performance. With the widespread use of modern telecommunication technologies,

structures could be monitored periodically from a central station located several miles away from the field. Sensors are placed at several critical locations along the structure, and send structural information to the central station. This remote capability allows immediate damage detection, so that necessary actions that ensure public safety are taken. The goal of this research work is to evaluate the use of Fiber Optic sensing technology as a tool for structural health monitoring. To perform this task, a case study involving installation of Fiber Optic Sensors on a selected bridge structure during its construction phase was conducted. The bridge is located in the state of Florida, USA and is considered the

first smart structure in this state. Static and Dynamic testing of the bridge were performed using loaded SU4 trucks. A 3-dimensional analytical finite element model of the bridge was developed and its results were compared to the test data. The study confirmed the accuracy of the sensors in estimating the bridge behavior under heavy truck loads. In addition, the sensors were connected to a data acquisition system permanently installed on-site. The acquisition system could be accessed through remote communication, which permits the evaluation of the bridge behavior under live traffic loads. Currently, live structural data under traffic loading is being transmitted continuously to the central maintenance office. The study revealed that the proposed health monitoring technology will enable practical, cost-effective, and reliable maintenance of bridge structures.

4) 篇名:Measurements of radiation vibrations of turbomachine blades

using an optical-fiber displacement-sensing system 作者:Tong Qing-bin, Ma Hui-ping, Liu Li-hua, Zhang Xiao-dong and Li Gui-bin

文献来源:Journal of Russian Laser Research Volume 32, Number 3 (2011) Abstract:

Turbomachine blades are critical equipment in the energy, chemical, aviation, and shipbuilding industries. Turbomachine-blade vibrations can cause high cycle fatigue, which reduces the blade lifetime. Their stable operation is a determining factor of safe and efficient production. In order to monitor and detect the turbomachine-blade vibrations and check whether whole or partial performance is normally operating, we design a reflective intensity-modulated optical-fiber sensing system for radial vibration detection of turbomachine blades and introduce the basic principles of the detection system in detail. We study some key

technologies such as the control system of the laser-diode (LD) constant power and an optical-fiber coupling system with the optical-fiber-bundle structure. We analyze the sensor output characteristics and present some numerical simulations. In view of our experimental results, we show that the system elaborated can eliminate the effects caused by light-intensity fluctuations, optical-fiber flexural losses, and changes in the surface reflection coefficient, and can detect the radial vibrations of

turbomachine blades in the presence of strong electromagnetic interference and under high temperatures.

5) 篇名:Distributed measurements of structures by fiber optic sensors 作者:II-Bum Kwon

文献来源:KSCE Journal of Civil Engineering Volume 7, Number 6 (2003) Abstract:

Continuous monitoring of civil structures is very useful to evaluate the structural health status. Fiber optic sensors can give the sensing solution for conducting continuous monitoring because these sensors are going to be multiplexed with various sensors on one line of an optical fiber and have the durability to harsh environments, and also are not affected by electromagnetic effects. In this study, we studied on the development of two kinds of sensors: One is an optical loss based fiber optic sensor which could be multiplexed by optical time domain

reflectometry, and another is a fiber optic BOTDA (Brillouin optical time domain analysis) sensor for distributed temperature measurement. To measure the strain by optical loss based fiber optic OTDR (optical time domain reflectometry) sensor, the optical loss of an optical fiber was designed to be sensitive to the strain. By performing beam deflection test, the strains of the beam was measured by these sensors, and compared with the strains of electrical strain gages at the same location. From the results, we could confirm these sensors had a good sensitivity to monitor the large civil structures. In order to measure the distributed

temperature, A fiber optic BOTDA sensor system, which has a capability of measuring the temperature distribution, attempted over several kilometers of long fiber paths. This simple fiber optic sensor system employs a laser diode and two electro-optic modulators. The optical fiber of the length of 1400 m was installed on the surfaces of the building. The change of the distributed temperature on the building construction was well measured by this fiber optic sensor. The temperature changed normally up to 4°C through one day. Also, The temperature distribution of spring season was compared with that of early winter season.

3、专利文献(中外文各找2篇):(工科必备)

? 篇名:一种透过固体进行声音振动测量的光纤传感装置 发明(设计)人:肖文,许秉时,李瑞,姚东 专利号:CN200910242527.4

摘要:本发明公开了一种透过固体进行声音振动测量的光纤传感装置,该光纤传感装置由光源(1)、发射光纤(2)、光纤传感单元(3)、接收光纤(4)、振动耦合单元(5)和光电探测器(61)和信号处理电路(6)组成;其中,光纤传感单元(3)和振动耦合单元(5)构成探测传感模块;发射光纤(2)安装在光源(1)与光纤传感单元(3)之间,接收光纤(4)安装在光电探测器(61)与光纤传感单元(3)之间,光电探测器(61)输出电信号给信号处理电路(6),振动耦合单元(5)与固体介质(7)接触。在本发明中,选取强度调制型光纤振动传感器作为声-光换能单元,克服了传统压电换能单元抗电磁干扰性差、特殊环境下存在危险的问题。本发明具有结构精巧,灵敏度高,易于使用的优点。 ? 篇名:一种分布式弯曲光纤传感装置 发明(设计)人:杜兵,杜蔚,杜迎涛 专利号:CN200910024251.2

摘要:本发明公开了一种分布式弯曲光纤传感装置,光时域反射计、光分路器、弯曲光纤传感器,其特征在于,光时域反射计接光分路器,分路器接至少两根及两根以上的光纤,每根光纤上至少有一个弯曲光纤传感器,形成一个光纤传感装置。当该光纤传感装置上的任一个光传感器件有响应时,并且该响应与时间相关,从而可换算出位置,光时域反射计上反应出来,从而完成较大范围力值得监测。本发明结构简单实用,抗环境干扰能力强,运行及使用成本低,适合于推广和使用。

? 篇名:Optical fiber shape sensing systems

Inventors: Younge; Robert G. (Portola Valley, CA), Ramamurthy; Bhaskar S. (Los Altos, CA), Tanner; Neal (Palo Alto, CA), Schlesinger; Randall L. (San Mateo, CA), Udd; Eric (Fairview, OR) United States Patent:8,050,523

Abstract:A medical instrument system includes an elongate flexible instrument body with an optical fiber substantially encapsulated in a wall of the instrument body, the optical fiber including one or more fiber gratings. A detector is operatively coupled to the optical fiber and configured to detect respective light signals reflected by the one or more fiber gratings. A controller is operatively coupled to the detector, and

configured to determine a twist of at least a portion of the instrument body based on detected reflected light signals. The instrument may be a guide catheter and may be robotically or manually controlled. ? 篇名:Optical fiber sensor for quantitative monitoring of deflection

from high-speed launcher operation conditions Inventors: Nechitailo; Nicholas V. (King George, VA) United States Patent:7,956,733

Abstract:A measurement system is provided to monitor a launcher assembly along a path along which to accelerate a projectile. This system includes an optical sensor, a light emitter, a light detector and a signal analyzer. The sensor is continuously disposed on (or integrated to) the assembly at a position on the path and has initial and terminus ends. The light emitter transmits an optical signal from the initial end. The light detector receives the optical signal from either the initial or terminus ends. The signal analyzer compares the optical signal from the detector to a quantifiable deflection of the assembly launcher. The signal analyzer issues an alarm indication in response to the quantifiable deflection exceeds a hazard-condition threshold. The sensor may be positioned either substantially parallel to or transverse at discrete points along the path and be disposed longitudinally along and/or wrapped helically around the launcher barrel.

4、学位论文(中外文各找2篇):(必备)

? 篇名:基于光纤传感测量的直升机旋翼分布载荷识别 作者:陈文

学位授予单位:南京航空航天大学

摘要:直升机旋翼分布载荷识别是直升机旋翼空气动力学和动力学领域中具有挑战性的研究课题。基于光纤传感测量的直升机旋翼分布载荷识别技术可以克服传统电测传感器测量的缺陷,发挥一系列独特的其他传感载体和媒质难以相比的优点,是一项很有应用潜力的新技术。本文利用光纤Bragg光栅传感器测量桨叶的振动信号,建立了一种直升机旋翼分布载荷的识别方法。 当力场作用于光纤光栅时,光纤Bragg光栅折射率和栅距也随之变化,即光纤光栅反射波长的漂移,通过检测波长漂移量就可以获得被测量,最直接的为应变量。这种应变量无任何噪声污染,并且光纤Bragg光栅传感器质量轻,体积小,可以分布式测量桨叶沿展向各剖面的应变。 本文建立了一种由光纤光栅实测应变推算出桨叶分布载荷

的方法。通过实测桨叶各剖面弯曲应变,经变换得到旋翼桨叶剖面弯矩,然后利用已知的模态内力或位移,求得广义坐标,最终确定桨叶挥舞状态的位移、结构载荷和气动载荷分布。以悬停状态下无铰式桨叶为试验对象,采用光纤Bragg光栅传感器测量桨叶在旋转状态下的挥舞弯曲应变,然后按照本文建立的桨叶分布载荷识别方法,计算得到了桨叶测量剖面的挥舞变形、结构载荷和气动载荷分布情况。

? 篇名:基于光纤传感技术的形状误差自动测量系统研究 作者:靳珊

学位授予单位:北京机械工业学院 北京信息科技大学

摘要:中国是世界稀土永磁材料钕铁硼的制造中心,产量已占全球总产量的75%以上,但目前我国对于钕铁硼材料形状误差的检测手段大部分以人工检测为主,对于大批量生产显然效率低,成本高,精度低,因此,为了适应不断提高的产品制造精度和大批量生产的要求,迫切需要一种自动化、高效率、高精度的检测手段。 本文基于反射式强度调制型光纤位移传感机制提出一种新型的、高精度、高效率的精密零部件形状误差的光学测量系统,将光纤传感技术与光纤通信技术相结合,通过光开关的切换实现光纤传感阵列的时分复用,提高系统的灵活性,降低成本并提高测量效率和精度。系统由激光光源、光纤传感阵列、光电转换锁定放大电路和计算机处理软件四部分组成。通过铌酸锂电光晶体实现激光光源的调制,光纤传感阵列按所测形状误差要求排列(例如平面度误差的测量,可按组合量法9点布局),调制光经环行器第2端输入一个9选1的光开关,光丌关的9路输出定义成8路测量光路和1路参考光路,测量光路的出射光从被测件表面反射返回,参考光路的出射光从标准件表面反射返回。光开关轮流选通9个输出光路,使其反射光从环行器的第3端输出至一个共用的光电转换和锁定放大电路,实现了单光源、单探测器和单处理电路的多光纤传感测量系统,避免了多处理电路的参数不一致问题。光纤传感器输出的微弱调制光强信号经精密前置放大后,通过锁相放大电路消除噪声和干扰的不利影响,提高信噪比;模拟电压经A/D转换采集进计算机,根据参考光光强的波动情况修正测量光路中光源光强波动对测量结果的影响,从而提高系统分辨率和稳定性。最后通过误差评定程序完成数据处理和形状误差的评定并给出测量结果。实验结果表明,系统的最大重复性误差为1.0%,灵敏度≥6mV/μm,证实了该系统的可行性,可以用于测量精密零部件的形状误差,且精度高、效率高、成本低。系统结构简单,改变光开关的通道数和光纤传感阵列的布局,可以实现不同形状零部件的多种形状误差的测量。

? 篇名:Grey-Model Based Ice Prediction Sensor System on Wind

Turbine System 作者:Feng, Chao

学位授予单位: Case Western Reserve University

Abstract :Ice is an important factor for wind turbine system health monitoring. Ice should be predicted and removed before it forms on the blades. If ice forms on the axle, it will give a friction force on the axle and damage the electrical system. My objective is to design and implement an ice detection sensor system to prevent the ice forming on wind turbine. Several fiber optic sensors are chosen to measure side parameters, input to a grey-model based prediction module to get the predicted values, and send them to LEWICE system to predict the ice shape. ? 篇名:Novel MEMS Pressure and Temperature Sensors Fabricated on

Optical Fibers 作者:Abeysinghe, Don Chandana

学位授予单位: University of Cincinnati

Abstract:This thesis presents the design, fabrication, and testing of novel MEMS pressure and temperature sensors fabricated on optical fiber end faces. A simple micromachining process compatible with MEMS was developed in fabricating sensors directly on optical fibers. The pressure sensor configuration involves anodic bonding of a piece of an extremely thin silicon wafer onto the fiber end face over a cavity etched in the central portion of the fiber end face. Final device diameter is thus the same as that of the optical fiber. The temperature sensor is based on anodically bonding a thin piece of silicon onto the fiber end face.The pressure sensors were fabricated on 400 um diameter fibers while temperature sensors were fabricated on both 200 and 400 um diameter fibers. Pressure measurements were made over the 14 to 80 psi range while temperature measurements were made over the 23 to 300 Celcius range. Pressure sensor sensitivities of 0.1 mV/psi and 0.2 mV/psi were obtained. The pressure sensors were designed with cavity diameter d=150 um, and cavity depth h=0.640 um. Diaphragm thickness for the two sensors were t=7.1, and t=3.4 um. Higher sensitivity was achieved by design of a sensor with the thinner diaphragm. A sensor array fabrication effort demonstrated that our micromachining process could be extended to simultaneous processing of an array of fibers. The temperature sensor was fabricated by bonding 3.1 um thick silicon onto the fiber end face. An oxidant-resistant encapsulation scheme for the temperature sensor was proposed, namely aluminum coated silicon nitride (Al/Si3N4). The uncoated side of silicon was bonded to a fiber end face using the anodic bonding method. The measured values of kf=(lambda)-1x(dlambda/dT) for capped and uncapped sensors were kf=(7.5±0.6)x10-5/Celcius, and kf=(7.2±0.1)x10-5/Celcius respectively. The measured kf value for the uncapped sensor is equal to that which was determined using the published

material properties for crystalline silicon (kf=7.9x10-5/Celcius) within measurement uncertainty. The micromachining process developed for micromachining fiber end faces along with the bonding of silicon to fiber end faces can be extended to fabrication of other MEMS based micro-optic devices where fiber optic interrogation is advantageous.

5、标准文献(找1篇):(工科必备) 名称:线型光纤感温火灾探测器 发布单位:CN-GB

标准编号:GB/T 21197-2007

6. 产品样本:只提供图,商品名:厂家.联系方式.(工科必备)

图片

商品名:井下温度压力传感器 厂家:普罗迪技术股份有限公司 联系方式:8610-59798225

7. 网络上相关网页(10页) (只列题名,IP地址.)(注意相关度)(必备)

1. 理工光科 http://www.wutos.com/

2. 苏州市盛信光纤传感科技有限公司 http://www.sengsing.com/Cn/ 3. 恒川科技:http://www.hecovo.com/?gclid=COiH9OTi_q8CFWxU4god2D5eUg 4. MicronOptics : http://www.micronoptics.com/ 5. 前沿光学:http://www.plasmonics.cn/list.aspx?cid=10 6. 武汉长盈通光电技术有限公司:www.yoec.com.cn/pro_show.php?proid=47 7. 峻烽光电:http://www.opeak.com.cn/ 8. 科学网:http://bbs.sciencenet.cn/forum.php?mod=group&fid=435 9. 北京奇迹-Miracle Photonics:http://www.miraclephotonics.com/product/project/002/ 10. 宁波诺驰:www.nuotch.com/pro/fenbushiguangxianchuanganqi.htm

8、会议论文(2篇)(必备)

篇名:FIBRE OPTIC SENSORS FOR STRUCTURAL HEALTH MONITORING (Invited Paper) 作者单位:School of Engineering and Mathematical Sciences, City University, London, UK

会议名称:The 5th International Conference on Optical Communications and Networks & the 2nd International Symposium on Advances and Trends in Fiber Optics and Applications(第5届国际光通信与网络年会暨第2届纤维光学发展现状与未来趋势国际学术研讨会) 会议时间:2006年1月1日 会议地点:成都

摘要:Optical fibre sensors have shown their importance and significant potential over conventional techniques to monitor the structural health of the major civil engineering infrastructures. This paper reports on a suite of sensors developed at City University, London to monitor parameters relating to carbonation and corrosion, such as temperature, pH, strain distribution and moisture ingress, in concrete structures. 篇名:Experiment on Dynamic Response of Fiber Optic Fabry-Perot Sensors and Its Application in Structural Health Monitoring

作者单位: 1. Key Lab.of Structure Health Monitoring and Control of Hebei Province,Shijiazhuang Railway Institute,Shijiazhuang,Hebei,050043;State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,100083

2. Key Lab.of Structure Health Monitoring and Control of Hebei Province,Shijiazhuang Railway Institute,Shijiazhuang,Hebei,050043

会议名称:The World Forum on Smart Materials and Smart Structures Technology(SMSST'07)(2007年世界智能材料与智能结构技术论坛) 会议时间: 2007年1月1日 会议地点:重庆·南京

摘要:The dynamic performance of the fibre optic Fabry-Perot strain sensor was studied in this paper.The sensor head is made of multimode optical fibre,capillary tube,and stainless steel coating.To test the dynamic performance of the sensor,we fixed the sensors on the surface of a model steel beam which is stimulated by a shaker.The fatigue test is also performed by embedding the fibre optic sensor into a 5-meter long concrete model beam together with traditional strain gauges.The test is carried out using the PEM-500A hydraulic pulsation fatigue test machine after 2 million stress circles.It can be found from the result that the fibre optic strain sensors have good stability and reliability.At the end of this paper,the applications of the fibre optic Fabry Perot strain sensor in the monitoring of Liaohe Bridge are introduced.There are 7 fibre optic strain sensors and 7 traditional strain gauges embedded in one section to make a contrast.The results show that the fibre optic sensors and the strain gauges have the same dynamic response.

9.中外文电子图书(相关专业)各3种,说明来源,格式,书名,作者,标准书

号,有无全文。(必备) (一)

来源:读秀学术搜索

格式:PDF

书名:光纤传感技术与应用 作者:廖延彪,黎敏,张敏等编著 标准书号(ISBN):978-7-302-17866-8 无全文 (二)

来源:读秀学术搜索

格式:PDF

书名:高级光纤传感技术 作者:江毅编著

标准书号(ISBN):978-7-03-023738-5 无全文 (三)

来源:超星电子图书

格式:PDF

书名:光纤传感原理与应用技术 作者:崔三烈

标准书号(ISBN):7-81007-534-9 有全文 (四)

来源:谷歌图书

格式:PDF

书名:Fiber Optic Sensors: Principles and Applications 作者:B.D.Gupta, Gupta, Banshi Das ISBN:8189422111, 9788189422110 无全文 (五)

来源:谷歌图书

格式:PDF

书名:Fiber Optic Sensors

作者:Shizhuo Yin, Paul B. Ruffin, Francis T. S. Yu ISBN:1420053655, 9781420053654 无全文

(六) 来源:谷歌图书

格式:PDF

书名:Novel Applications of Distributed Fiber-Optic Sensing in Geotechnical Engineering

作者:Michael Iten

ISBN:3728134546, 9783728134547

无全文

三、综述报告(含课题研究目的、技术背景、现状分析、市场分析,展望等,500--1000字左右.。(文科同学800-1500字)

随着新技术革命的到来,世界开始进入信息时代。在利用信息的过程中,首先要解决的就是要获取准确可靠的信息,而传感器是获取自然和生产领域中信息的主要途径与手段。 近年来,传感器一直朝着灵敏、精确、适应性强、小巧和智能化的方向发展。在这一过程中,光纤传感器这个传感器家族的新成员倍却是倍受青睐。

光纤传感器的基本工作原理是将来自光源的光经过光纤送入调制器,使待测参数与进入调制区的光相互作用后,导致光的光学性质(如光的强度、波长、频率、相位、偏正态等)发生变化,称为被调制的信号光,在经过光纤送入光探测器,经解调后,获得被测参数。

光纤具有很多优异的性能,例如:抗电磁干扰和原子辐射的性能,径细、质软、重量轻的机械性能;绝缘、无感应的电气性能;耐水、耐高温、耐腐蚀的化学性能等,它能够在人达不到的地方(如高温区或者对人有害的地区,如核辐射区),起到人的耳目作用,而且还能超越人的生理界限,接收人的感官所感受不到的外界信息。

目前我国在满足中低端市场的光纤传感器领域发展较为完善,在面向高端市场的光纤传感器领域则仍处于研发阶段。基于光纤的传感器有着诸多优势,今后发展潜力巨大,在安保、军事、石油/天然气、电力以及科学研究方面都将会得到广泛应用。目前常见的光纤传感器有光纤陀螺、光纤水听器、光纤光栅传感器、光纤电流传感器等。应用作为广泛的是布拉格光纤光栅(配备ASE宽带光源)和基于光时域反射的分布式传感器,主要满足中低端市场需求。当前光纤传感器市场是零散的,但多数应用具有共同的技术基础,许多器件和系统已进入商用阶段,市场份额逐年扩大。市场已从2009年的衰退开始复苏,普遍的共识是年增长率将在10%至25%的范围内。

光纤传感器应用于对磁、声、压力、温度、加速度、陀螺、位移、液面、转矩、光声、电流和应变等物理量的测量。其应用范围十分广泛,几乎涉及国民经济和国防上所有重要领域和人们的日常生活,尤其可以安全有效地在恶劣环境中使用,解决了许多行业多年来一直存在的技术难题。因此我们可以说光纤传感器具有很大的市场需求,不说长久,至少在未来5年,光纤传感器将会有广阔的发展前景。

四、结合课程和课题写出你平常检索过程中遇到的问题和建议.写出你经常浏览的及常用的网站

问题1:由于英语水平低,用外文数据库检索较困难。建议:不懂的地方用谷歌或有道翻译。

问题2:对于一些与检索课题相关但不是近6年制定的标准,现在仍在沿用,能否放宽要求。建议:只要是现在还在沿用的标准就算合格。

问题3:平常上机时间过短,有些老师讲过的检索技巧来不及当场实践,课后又容易忘记。建议:每次上机课加长半小时。 经常浏览的网站:

?

万方数据库http://g.wanfangdata.com.cn

? 维普数据库:http://oldweb.cqvip.comspringer ? 数据库:http://www.springerlink.com

? ? ? ? ? ?

国际标准化组织(ISO):http://www.iso.org/iso/en/ISOOnline.frontpage 中国知识产权局专利检索 http://www.sipo.gov.cn/sipo/zljs/ 俄亥俄学位论文中心:http://etd.ohiolink.edu/ 谷歌学术搜索:http://scholar.google.com.hk 亚马逊:http://www.amazon.com/

教育部calis学位论文:http://etd.calis.edu.cn/ipvalidator.do

? 书生资源门户:http://www.souba.org

说 明

1.检索课题的确定

根据所学专业,结合自己的兴趣,运用本课程知识,定检索课题进行,课题必须包含主题词和副主题词:自己找相关主题或副主题词,对检索的文献进行分析和总结,说明检索来源,形成综述报告(800--1000字左右)。

要求同学们独立完成.对于内容完全相同的都作扣分处理,也可以自拟课题,但须有各类真实文献类型。推荐课题有季铵盐消毒液,磷化液,国际金融危机,单片机的应用等 3、交综合检索报告

做完综合检索报告后,交给学习委员,由学习委员统一按学号整理后交给老师。统一格式交打印件,不可以交手写件,但不能交电子版(教务处要检查)。

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