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纳米金属复合孔阵列强透射折射率传感器研究 预览
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作者 杨宏艳 韦柳夏 +7 位作者 黄文海 刘厚权 滕传新 陈明 邓洪昌 徐荣辉 邓仕杰 苑立波 《深圳大学学报:理工版》 CAS CSCD 北大核心 2019年第4期405-410,共6页
设计了一种圆环-矩形金属纳米复合孔阵列折射率传感器.采用时域有限差分法进行数值计算,讨论了复合结构的周期、旋转角度、圆环内径以及矩形长和宽等参数对光透射特性的影响,并分析复合纳米孔狭缝宽度对灵敏度的影响.结果表明,经过参数... 设计了一种圆环-矩形金属纳米复合孔阵列折射率传感器.采用时域有限差分法进行数值计算,讨论了复合结构的周期、旋转角度、圆环内径以及矩形长和宽等参数对光透射特性的影响,并分析复合纳米孔狭缝宽度对灵敏度的影响.结果表明,经过参数优化后,可获得的最佳光透射率高达84.4%,灵敏度达(2613±75)nm/RIU。该研究为设计和实现下一代高灵敏度金属纳米等离子体生化传感器提供理论依据。 展开更多
关键词 光学传感器 表面等离子体共振 圆环-矩形孔阵列 时域有限差分方法 光透射 折射率传感特性
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表面等离激元纳米阵列结构传感器的集成化和小型化研究
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作者 梁瑜章 徐挺 《物理》 CAS 北大核心 2019年第1期22-28,共7页
表面等离激元由于其异常的光学特性在高灵敏度传感领域有着广泛的应用前景。然而,传统棱镜式表面等离激元传感器由于庞大的体积和昂贵的成本限制了其进一步发展。表面等离激元金属纳米阵列结构传感器的出现为实现低成本、小型化和集成... 表面等离激元由于其异常的光学特性在高灵敏度传感领域有着广泛的应用前景。然而,传统棱镜式表面等离激元传感器由于庞大的体积和昂贵的成本限制了其进一步发展。表面等离激元金属纳米阵列结构传感器的出现为实现低成本、小型化和集成化的表面等离激元传感器提供了一条有效的解决途径。文章首先总结了表面等离激元纳米阵列结构传感器的发展现状和应用优势,然后主要介绍了近期作者课题组在表面等离激元传感器小型化、集成化、低成本方面的一些工作。这些工作对推动表面等离激元传感理论的发展,实现金属纳米阵列传感技术器件化具有较为重要的现实意义。 展开更多
关键词 表面等离子激元 纳米阵列结构 光学传感器 光学集成器件 生化传感
电梯控制模拟实验系统的设计 预览
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作者 李真 余善恩 彭辉丽 《实验科学与技术》 2019年第1期46-51,共6页
为了满足自动化等相关专业实验教学的要求,本着教研结合的原则,设计了一种针对教学和科研的参照真实电梯运行的五层电梯控制系统。系统选择STM32作为控制单元,步进电机作为驱动单元,通过电机正反转实现电梯的升降,通过按键选择想要到达... 为了满足自动化等相关专业实验教学的要求,本着教研结合的原则,设计了一种针对教学和科研的参照真实电梯运行的五层电梯控制系统。系统选择STM32作为控制单元,步进电机作为驱动单元,通过电机正反转实现电梯的升降,通过按键选择想要到达的楼层并在数码管上实时显示。该实验系统可靠性高、成本低,能够较为真实地模拟出一台五层电梯控制系统的运行情况。该实验系统一方面可以在单片机的实验教学中帮助学生更好的理解所学的相关电子知识,另一方面也能对实际运行电梯的研究和改进产生一定的借鉴意义。 展开更多
关键词 电梯 步进电机 单片机 光耦传感器 数码管
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光学溶解氧传感器和Winkler法测定溶解氧的对比研究 预览
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作者 张云燕 袁达 +1 位作者 吴丙伟 程岩 《山东科学》 CAS 2019年第1期1-6,共6页
依托实验室搭建的溶解氧对比装置,系统研究了不同温度和溶解氧条件下光学溶解氧传感器和Winkler法测定溶解氧的区别。结果表明,光学溶解氧传感器和Winkler法测定溶解氧的结果有较好的相关性,在不同温度条件下两者的相关系数均大于0.998... 依托实验室搭建的溶解氧对比装置,系统研究了不同温度和溶解氧条件下光学溶解氧传感器和Winkler法测定溶解氧的区别。结果表明,光学溶解氧传感器和Winkler法测定溶解氧的结果有较好的相关性,在不同温度条件下两者的相关系数均大于0.998。在溶解氧浓度低于4mg·L^-1时,光学溶解氧传感器测定值略低于Winkler法;在溶解氧浓度大于4mg·L^-1时,光学溶解氧传感器与Winkler测定差值主要集中在-0.25~0.25mg·L^-1。两种光学溶解氧传感器测定结果较为接近,差值小于0.10mg·L^-1。光学溶解氧传感器测定是一种可靠的溶解氧检测方法,可适用于海洋调查和养殖区的常规在线监测。 展开更多
关键词 溶解氧 光学溶解氧传感器 Winkler法
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High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop
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作者 Laipeng SHAO Junhui HU +3 位作者 Hanglin LU Jing DU Tianyin WU Yiping WANG 《光子传感器:英文版》 EI CAS CSCD 2019年第1期25-32,共8页
A high-sensitivity all-fiber temperature sensor based on a Sagnac interferometer is demonstrated by splicing a section of polarization maintaining fiber(PMF)between two sections of standard single mode fibers(SMFs).In... A high-sensitivity all-fiber temperature sensor based on a Sagnac interferometer is demonstrated by splicing a section of polarization maintaining fiber(PMF)between two sections of standard single mode fibers(SMFs).In this sensor,the SMF-PMF-SMF structure in the Sagnac loop is bent into a circle to enhance the sensitivity.The length and curvature of the PMF in the loop are investigated and can be optimized to further increase the temperature sensitivity of the sensor. Results show that the radius of the circle has an important effect upon temperature sensitivity due to the bend-induced birefringence variation of the PMF.The SMF-PMF-SMF structure bent into a circle with a radius of 30mm exhibits a high-sensitivity temperature of 1.73nm/℃.The sensor is provided with the advantages of easy fabrication,low-insertion loss,and high sensitivity,which may find potential applications in the field of high precision temperature measurement. 展开更多
关键词 Optical FIBER SENSOR POLARIZATION maintaining FIBER temperature SENSOR SAGNAC LOOP
Multi-functional optical fiber sensor system based on a dense wavelength division multiplexer
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作者 尹悦鑫 吴志发 +4 位作者 孙思文 田亮 王希斌 吴远大 张大明 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第7期222-224,共3页
We propose a novel and efficient multi-functional optical fiber sensor system based on a dense wavelength division multiplexer(DWDM).This system consists of an optical fiber temperature sensor, an optical fiber strain... We propose a novel and efficient multi-functional optical fiber sensor system based on a dense wavelength division multiplexer(DWDM).This system consists of an optical fiber temperature sensor, an optical fiber strain sensor, and a 48-channel DWDM.This system can monitor temperature and strain changes at the same time.The ranges of these two sensors are from-20℃ to 100℃ and from-1000 με to 2000 με, respectively.The sensitivities of the temperature sensor and strain sensor are 0.03572 nm/℃ and 0.03808 nm/N, respectively.With the aid of a broadband source and spectrometer,different kinds and ranges of parameters in the environment can be monitored by using suitable sensors. 展开更多
关键词 DENSE WAVELENGTH division multiplexer(DWDM) planar LIGHTWAVE circuit multi-functional SENSOR optical fiber SENSOR system
Highly Sensitive Refractive Index Sensor Based on Polymer Long-Period Waveguide Grating With Liquid Cladding
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作者 Lingfang WANG Keyu REN +1 位作者 Bao SUN Kaixin CHEN 《光子传感器:英文版》 EI CAS CSCD 2019年第1期19-24,共6页
We propose a novel structure and unique sensing mechanism bio-chemical sensor which is fabricated by a polymer long-period waveguide grating with the detection liquid directly as the waveguide cladding.Quantitative de... We propose a novel structure and unique sensing mechanism bio-chemical sensor which is fabricated by a polymer long-period waveguide grating with the detection liquid directly as the waveguide cladding.Quantitative detection is realized from analyzing the output absorption spectrum and resonant wavelength shift related to the liquid detection concentration.The proposed polymer long-period waveguide grating based liquid refractive-index sensor is developed experimentally,the high sensitivity of 1.01×10^4nm/RIU is achieved,and the temperature stability coefficient is 1.47nm/℃.Theoretically and experimentally,this work has been demonstrated to have potential application in chemical and biological detections and may provide an important technical support for solving today's increasingly serious civil problems such as food safety and drug safety, which will also have the important scientific significance and application prospects. 展开更多
关键词 Optical SENSOR POLYMER WAVEGUIDES long-period WAVEGUIDE GRATINGS liquid CLADDING
Detection of Amines in Lamb Spoilage by Optical Waveguide Sensor Based on Bromophenol Blue-Silicon Composite Film
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作者 KOXMAK Sayyara YIMAMUMAIMAITI Tajiguli +2 位作者 ABDUKEREMU Hannikezi NIZAMIDIN Patima YIMIT Abliz 《高等学校化学研究:英文版》 SCIE CAS CSCD 2019年第2期193-199,共7页
We herein report the development of a bromophenol blue(BPB)-silicone composite film/K^+-exchange glass optical waveguide(OWG)sensor for the detection of amines produced during the spoilage of lamb.the optical and stru... We herein report the development of a bromophenol blue(BPB)-silicone composite film/K^+-exchange glass optical waveguide(OWG)sensor for the detection of amines produced during the spoilage of lamb.the optical and structural properties of the sensitive thin film were studied by ultra violet-visible(UV-Vis)spectroscopy,and the light source of the OWG detecting system was selected.Gas sensing measurements showed that the sensor exhibited a good selectivity,higli sensitivity,and short response-recovery time towards volatile amine gases in the 0.00117一11.72 mg/g range.The as-prepared optical waveguide device was subsequently applied in the determination of gases(namely trimethylamine,dimethylamine,and ammonia)emitted from the lamb samples(5g)stored at room temperature(25℃)and in a refrigerator(5℃)for 0—4 d,and the total volatile basic nitrogen(TVB-N)contents were detected by UV-Vis spectroscopy,and the results were compared witli those obtained using our detector.It was found that the sensing element was capable of detecting mixed gases produced by the decomposition of lamb samples in a refrigerator for 0.5 h,where the TVB-N content was lower than 35μg/g. 展开更多
关键词 Optical waveguide SENSOR Composite film Amine gas LAMB freslmess DETECTION
基于光纤的扭矩传感器新型结构设计 预览
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作者 张占鹏 白素平 闫钰锋 《光通信技术》 北大核心 2019年第3期1-4,共4页
为能够实现对扭矩的高精度测量,基于光纤应变测量扭矩的原理,提出了新型结构的扭矩测量传感器。该传感器采用轮辐式的结构,能够获得固定梁处参考光纤与传递梁处测量光纤之间的相位差,通过建立相位差与扭矩之间数学关系的方式,实现对扭... 为能够实现对扭矩的高精度测量,基于光纤应变测量扭矩的原理,提出了新型结构的扭矩测量传感器。该传感器采用轮辐式的结构,能够获得固定梁处参考光纤与传递梁处测量光纤之间的相位差,通过建立相位差与扭矩之间数学关系的方式,实现对扭矩的测量;同时,采用有限元分析方法进行仿真研究,进一步确定扭矩与相位差之间的数学关系,为新型结构的扭矩传感器提供理论模型。误差分析结果表明:由结构引起的扭矩测量误差为±0.115N·m,证明该结构满足光纤的测量原理要求,能够实现扭矩测量。 展开更多
关键词 光纤 传感器 扭矩测量 相位差 有限元分析 精度分析
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Hamamatsu’s Products for Optical Inspection,Metrology and Monitoring to Improve Yield and Accuracy for Semiconductor Processes 预览
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作者 Chenghao Xiang Xusheng Zhou 《微电子制造学报》 2019年第1期13-18,共6页
Pursuing small critical dimensions(i.e.14 nm or below)and high integration bring us lots of physical defects causing low yield and functionality failures for foundries.Under this circumstance,inspection,metrology and ... Pursuing small critical dimensions(i.e.14 nm or below)and high integration bring us lots of physical defects causing low yield and functionality failures for foundries.Under this circumstance,inspection,metrology and monitoring technologies are unprecedentedly vital for development of semiconductor industry.Optical and electron beam solutions are the most common two methods in semiconductor manufacturing.Hamamatsu Photonics is now aiming at optical inspection,metrology and monitoring systems market by providing light sources,photodetectors and failure analysis systems for semiconductor equipment manufacturers,foundries and research institutions.In this paper,features and potential applications of light sources,photodetectors(like image sensors,photomultiplier tubes/modules,silicon photomultipliers(modules),(avalanche)photodiodes(arrays)and so on),with the wavelengths ranging from UV to Infrared,are mainly discussed.In addition,Hamamatsu’s star product– failure analysis system to quickly locate faults or defects are introduced.In conclusion,Hamamatsu Photonics is dedicated to develop large varieties of light sources and optical sensors/detector/modules along with failure analysis systems and willing to improve the development of semiconductor and related industries,especially in China. 展开更多
关键词 optical SEMICONDUCTOR inspection/metrology/monitoring solutions image sensor light SOURCES mini-spectrometer PHOTOMULTIPLIER tubes/modules
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大相对孔径轻小型星敏感器光机系统设计 预览
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作者 魏明 王超 +2 位作者 付强 高天元 史浩东 《长春理工大学学报:自然科学版》 2019年第1期23-26,共4页
星敏感器的光机设计水平直接关系到仪器姿态测量精度的极限。为满足微纳卫星平台使用需求,设计了一种大相对孔径,宽视场的超轻小型星敏感器光学系统及其机械结构。镜头选用6片球面透镜,有效焦距为16mm,工作波长为500~800nm,F#=1.2,视场... 星敏感器的光机设计水平直接关系到仪器姿态测量精度的极限。为满足微纳卫星平台使用需求,设计了一种大相对孔径,宽视场的超轻小型星敏感器光学系统及其机械结构。镜头选用6片球面透镜,有效焦距为16mm,工作波长为500~800nm,F#=1.2,视场为20°,全视场内,像点80%的能量集中在3×3像元内,全视场倍率色差小于2μm,相对畸变小于0.1%,优化后所有视场下MTF值均大于0.4。系统总长仅为26mm。针对星敏感器光学系统轻小化需求,选取铍铝合金作为材料进行结构设计。在抗震方面,采用具有相切界面的圆锥类隔圈和压圈以增加接触面积,减小对镜片压强。最终光机系统总质量为10.32g,能够较好的满足小卫星平台的使用需求。 展开更多
关键词 光学设计 星敏感器 大相对孔径 轻小型
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Research on SFTS structure based optical fiber sensor
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作者 童峥嵘 孙立立 +1 位作者 秦娟 张卫华 《光电子快报:英文版》 EI 2019年第1期39-42,共4页
A single-mode-few-mode-thin-core-single-mode(SFTS) structure based optical fiber sensor is fabricated and experimentally studied. The sensing principle relies on the inter-modal interference. Since the core diameter o... A single-mode-few-mode-thin-core-single-mode(SFTS) structure based optical fiber sensor is fabricated and experimentally studied. The sensing principle relies on the inter-modal interference. Since the core diameter of few-mode fiber(FMF) is larger than that of single-mode fiber(SMF), the FMF helps to allow more light to enter the cladding of thin-core fiber(TCF), which helps TCF to excite cladding modes. The interference between core and cladding modes in TCF occurs at the joint of lead-out SMF and TCF. Experimental results demonstrate a refractive index(RI) sensitivity of-103.34 nm/RIU and a temperature sensitivity of 0.05 nm/℃. The proposed sensor not only can measure temperature, but also can measure RI. In addition, the proposed sensor is simple for without complicated fabrication process. 展开更多
关键词 RIU In RESEARCH on SFTS STRUCTURE based OPTICAL FIBER SENSOR TCF
Resonant Light Scattering Toward Optical Fiber Humidity Sensors
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作者 Mahboubeh DEHGHANI SANIJ Abolfazl BAHRAMPOUR Ali Reza BAHRAMPOUR 《光子传感器:英文版》 EI CAS CSCD 2019年第1期60-68,共9页
The deposition of tetrakis(4-sulonatophenyl)porphyrin(TPPS)thin film on optical fibers presents many possibilities for sensing applications.The J-form aggregation with a narrow and sharp spectral feature at about 490n... The deposition of tetrakis(4-sulonatophenyl)porphyrin(TPPS)thin film on optical fibers presents many possibilities for sensing applications.The J-form aggregation with a narrow and sharp spectral feature at about 490nm and its sensitivity to humidity have been discussed;a fast change of wavelength occurs according with variation in the humidity level.The reproducibility and high sensitivity of TPPS-coated fibers,along with the capabilities of optical fibers,suggest the device as a good candidate for humidity sensing in harsh environments. 展开更多
关键词 Humidity CHEMICAL porphyrin-based CHEMICAL optical fiber SENSOR
基于相位解调的双光束薄膜干涉型光纤传声器
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作者 周瑜 刘超 +1 位作者 王坤博 魏晓村 《光学学报》 EI CAS CSCD 北大核心 2019年第1期308-314,共7页
针对基于相位解调的双光束薄膜干涉型光纤传声器的特性展开了研究,仿真分析了三路信号的直流分项、交流分项以及相位差对双光束薄膜干涉型光纤传声器输出性能的影响。采用对比法,并通过实验研究了基于相位解调的双光束薄膜干涉型光纤传... 针对基于相位解调的双光束薄膜干涉型光纤传声器的特性展开了研究,仿真分析了三路信号的直流分项、交流分项以及相位差对双光束薄膜干涉型光纤传声器输出性能的影响。采用对比法,并通过实验研究了基于相位解调的双光束薄膜干涉型光纤传声器的输出特性,实现了灵敏度为193 mV/Pa@1 kHz、频率响应为200 Hz~4 kHz@±3 dB的声信号测量。本研究能够很好地应用于声探测、语音识别等领域。 展开更多
关键词 光通信 光纤传感器 声传感 双光束薄膜干涉 相位解调
大相对孔径宽光谱星敏感器光学镜头设计 预览
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作者 孟祥月 王洋 +2 位作者 张磊 付跃刚 顾志远 《红外与激光工程》 EI CSCD 北大核心 2019年第7期182-189,共8页
为了提高星敏感器相对孔径,拓宽探测光谱范围,文中通过探测器灵敏度模型的计算,确定了星敏感器光学系统的设计参数,进而设计了一款基于卫星平台的星敏感器光学镜头。该镜头由7片球面透镜组成,光谱范围为500~800 nm,焦距为50 mm,相对孔径... 为了提高星敏感器相对孔径,拓宽探测光谱范围,文中通过探测器灵敏度模型的计算,确定了星敏感器光学系统的设计参数,进而设计了一款基于卫星平台的星敏感器光学镜头。该镜头由7片球面透镜组成,光谱范围为500~800 nm,焦距为50 mm,相对孔径为1/1.25,视场角为8.45°×8.45°(对角线视场角为11.96°),总长83.33 mm。镜头采用像方远心光路,减小了因像面离焦及其他因素引起的测量误差。优化后的镜头畸变小于0.5%,质心色偏差控制在±2μm内,能量集中度(3×3像元内)大于80%,最大倍率色差为-0.073μm,轴外视场的弥散斑能量集中度和轴上视场基本一致。对比不同温度下的光学系统,焦距变化量很小,验证了无热化设计要求,镜头的成像质量良好。 展开更多
关键词 光学设计 星敏感器 大相对孔径 宽光谱 像方远心 无热化
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分布式光纤温度传感专利技术综述 预览
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作者 吕昕 贾祥志 《河南科技》 2019年第27期42-45,共4页
本文从专利的角度出发,对分布式光纤温度传感技术的专利申请进行了梳理,分析了分布式光纤温度传感专利技术的申请趋势和技术动态,有助于技术人员了解该技术的发展脉络、重要申请人的相关技术分布,并为该领域的检索方法提供了一些建议。
关键词 分布式 光纤 温度 专利分析
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矿井内CH4与CO2双组分NDIR传感器的设计与实现 预览
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作者 赵勇毅 常建华 +2 位作者 沈婉 赵正杰 房久龙 《红外技术》 CSCD 北大核心 2019年第8期778-785,共8页
为了实现对矿井有害气体的有效监测和控制,本文基于非色散红外(NDIR)原理,设计了一种双组分气体传感器。重点提出了一种反射式气室,然后利用光学仿真软件LightTools对腔体内的光线传播方向进行了光线追迹分析,并对到达探测器4个接收面... 为了实现对矿井有害气体的有效监测和控制,本文基于非色散红外(NDIR)原理,设计了一种双组分气体传感器。重点提出了一种反射式气室,然后利用光学仿真软件LightTools对腔体内的光线传播方向进行了光线追迹分析,并对到达探测器4个接收面的光强分布进行了模拟分析,验证了该气室的可行性与优越性。在器件上选用电调制红外光源和热释电探测器,由单片机处理电信号并输出气体浓度信息,大大提高了检测精度。实验结果表明,该传感器能够准确检测0~2000ppm范围内的甲烷与二氧化碳气体浓度,满量程精度可达4.5%。可以满足矿井内甲烷、二氧化碳气体浓度检测的需要,具有广阔的应用前景。 展开更多
关键词 NDIR 双组分 光学仿真 气体传感器
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Distributed Vibration Sensor With Laser Phase-Noise Immunity by Phase-Extraction φ-OTDR
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作者 Yuying SHAO Huanhuan LIU +5 位作者 Peng PENG Fufei PANG Guoqin YU Zhen CHEN Na CHEN Tingyun WANG 《光子传感器:英文版》 EI CAS CSCD 2019年第3期223-229,共7页
We have demonstrated a distributed vibration sensor based on phase-sensitive optical time-domain reflectometer (φ-OTDR) system exhibiting immunity to the laser phase noise. Two laser sources with different linewidth ... We have demonstrated a distributed vibration sensor based on phase-sensitive optical time-domain reflectometer (φ-OTDR) system exhibiting immunity to the laser phase noise. Two laser sources with different linewidth and phase noise levels are used in the φ-OTDR system, respectively. Based on the phase noise power spectrum density of both lasers, the laser phase is almost unchanged during an extremely short period of time, hence, the impact of phase noise can be suppressed effectively through phase difference between the Rayleigh scattered light from two adjacent sections of the fiber which define the gauge length. Based on the phase difference method, the external vibration can be located accurately at 41.01 km by the(φ-OTDR system incorporating these two lasers. Meanwhile, the average signal-to-noise ratio (SNR) of the retrieved vibration signal by using Laser I is found to be -37.7 dB, which is comparable to that of -37.5 dB by using Laser II although the linewidth and the phase noise level of the two lasers are distinct. The obtained results indicate that the phase difference method can enhance the performance of(φ-OTDR system with laser phase-noise immunity for distributed vibration sensing, showing potential application in oil-gas pipeline monitoring, perimeter security, and other fields. 展开更多
关键词 DISTRIBUTED vibration SENSING optical time domain REFLECTOMETER fiber sensor PHASE noise
Reflectometric and interferometric fiber optic sensor's principles and applications
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作者 Muhammad Noaman ZAHID Jianliang JIANG Saad RIZVI 《中国光电子学前沿:英文版》 EI CSCD 2019年第2期215-226,共12页
Fiber optic sensors have been widely used and studied in recent times. This paper presents operating principles and applications of fiber optic sensors namely reflectometric and interferometric fiber optic sensors. Ma... Fiber optic sensors have been widely used and studied in recent times. This paper presents operating principles and applications of fiber optic sensors namely reflectometric and interferometric fiber optic sensors. Majority of optical fiber sensors fall under these two broad categories. Both interferometric and reflectometric fiber optic sensors are becoming popular for their ease of use, flexibility, long distance sensing, and potentially noise free detection. Also, these sensors can easily be used in various applications such as structural health monitoring, perimeter intrusion detection, temperature monitoring, and other numerous applications. This paper broadly classifies fiber optic sensors into two subtypes. The paper further highlights different sensors based on their sensing resolution, range, spatial advantages, and applications. 展开更多
关键词 FIBER OPTIC reflectometric INTERFEROMETRIC optical FIBER SENSORS SENSOR applications
一种基于活塞结构的光纤流体压力传感器 预览
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作者 胡浩 《机床与液压》 北大核心 2019年第7期101-104,共4页
对一种新型的光纤流体压力传感器进行了设计与研究。依据强度补偿原理,设计出了传感器系统,并建立了传感器系统的强度补偿模型;提出了一种基于活塞结构的光纤流体压力传感器探头,并建立了传感器的传感数学模型;在理论分析的基础上,对传... 对一种新型的光纤流体压力传感器进行了设计与研究。依据强度补偿原理,设计出了传感器系统,并建立了传感器系统的强度补偿模型;提出了一种基于活塞结构的光纤流体压力传感器探头,并建立了传感器的传感数学模型;在理论分析的基础上,对传感器进行了实验研究,得出了传感器在不同结构参数NA、l、d取值下的p-M曲线,实验结果表明:传感器的输出值与压力p之间存在线性关系,传感器具有较好的灵敏度。能够满足不同场合流体压力的检测。 展开更多
关键词 活塞 光纤 流体 压力传感器 数学模型
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