共查询到20条相似文献,搜索用时 62 毫秒
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SHI Yongji 《半导体光子学与技术》1997,(2)
UniversalSpectralModulationSensors:(Ⅱ)Applications①SHIYongji(LuoyangTechnologyColege,Luoyang471003,CHN)Absrtact:Inpart(Ⅰ),the... 相似文献
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SHI Yongji 《半导体光子学与技术》1997,(2)
UniversalSpectralModulationSensors:(Ⅰ)TheoryandStructure①SHIYongji(LuoyangTechnologyColege,Luoyang471003,CHN)Abstract:Auniver... 相似文献
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自聚焦光纤列阵的动态测试原理及测试结果分析 总被引:1,自引:0,他引:1
本文采用调制传递函数来评价自聚焦透镜SelfocLensArray(SLA)像质,并在测试分析中得出一些有意义的结果。 相似文献
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上海市有线电视光纤传输网 总被引:1,自引:0,他引:1
上海市有线电视光纤传输网陈志葛TheFiber-OpticTransmissionNetworkforShanghaiCATV¥byChenZhige国外称为CableTV(CATV)的有线电视,近几年来在我国得到了健康、高速的发展。随着我国改革开放... 相似文献
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SU Meijun 《半导体光子学与技术》1997,(3)
TechniqueofPositionSensitiveDetectorwithAlternatingLightSource①SUMeijun(HefeiUniversityofTechnology,Hefei230009,CHN)Abstract:... 相似文献
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氧气氛中高温超导Y_1B_(a2)C_(u3)O_X靶的激光等离子体光谱强度研究林波,赵仪,孙爱民,张树东,袁相津(西北师范大学物理系)StudyofSpectroscopicIntensityoftheLaser-InducedPlasmaofY-Ba... 相似文献
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基于光子晶体光纤环镜的光纤传感器的研究及进展 总被引:3,自引:3,他引:0
对国内外已报道的基于光子晶体光纤环镜的光纤传感器进行了综述。总结了多种基于光子晶体光纤环镜的光纤传感器,包括应力、温度、微弯、扭曲和气压传感器。介绍了各种传感器的原理和优势,并对基于光子晶体光纤环镜的光纤传感器的发展进行了展望。 相似文献
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分布式光纤传感器根据其原理可以分为瑞利散射分布式光纤传感器,拉曼散射分布式光纤传感器以及布里渊散射分布式光纤传感器。分布式光纤传感器因具有测量范围宽,测距长,高灵敏度和高精度而得到广泛应用,但它在油田领域的一些应用却相对陌生。本文的目的在于阐述分布式光纤传感器在数字油田应用中的研究进展,反映国内外对这块领域研究的现状,分析各种分布式光纤传感技术的优缺点,以此使得其在数字油田中有更好的应用前景。 相似文献
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WANGZhao-ying WUXing TIANHe-bin LIShi-chen 《半导体光子学与技术》2003,9(2):102-106
The security of civil engineering is an important task due to the economic,social and evironmental significance.Compared with conventional sensors.the optical fiber sensors have their unique characteristics.Beijing durable,stable and insensitive to external perturbations,they are particular interesting for the long-term monitoring of civil structures.Focus is on absolute measurement optical fiber sensors,which are emerging from the monitoring large structural,including SOFO system,F-P optical fiber sensors,and fiber Bragg grating sensors.The principle,characteristic and application of these three kinds of optical fiber sensors are described together with their future prospects. 相似文献
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Recently developed micro- and nano-structured optical fiber sensors, with particular reference to surface plasmon resonance (SPR) fiber sensors and photonic crystal fiber (PCF) sensors are reviewed. SPR fiber sensors can have diverse structures such as D-shape, cladding-off, fiber tip or tapered fiber structures. Some of the recently developed novel structures include the use of various types of fiber gratings in SPR fiber sensors. PCF sensors cover diverse recent developments on photonic-bandgap fiber, holey fiber, hole-assisted fiber and Bragg fiber sensors. Major applications of these include gas sensors and bio-sensors. These micro- and nano-structured fiber sensors have attracted considerable research and development interest, because of their distinct advantages, which include high sensitivity, small sensor head footprint and the flexibility of the optical fibers. They are also of academic interest, and many novel ideas are continuously developed. 相似文献
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分布式光纤传感技术及其应用 总被引:2,自引:0,他引:2
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. 相似文献
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《Progress in Quantum Electronics》2006,30(2-3):45-73
In this paper, we review the different configurations proposed for electromagnetic field optical sensing. Intrinsic and extrinsic optical fiber sensors for electric and magnetic field measurement are examined, including those realized jacketing the fiber by magnetostrictive, conductive, electrochromic and polymeric materials and those measuring induced strain by magnetostrictive, electrostrictive and piezoelectric transducers. Extrinsic optical fiber sensors exploiting magneto-optic, electro-optic and Joule effects are also presented.Moreover, integrated optical electric and magnetic field sensors in which microwave signal provided by an antenna modulates the optical signal generated by an optical source are reviewed. Finally, active and coupled resonators based on electric field sensors are investigated. 相似文献