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Network Integration of Distributed Optical Fiber Temperature Sensor
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作者 Gui-Yan Li Hong-Lin Liu Zai-Xuan Zhang 《Journal of Electronic Science and Technology of China》 2008年第4期399-401,共3页
The integration of distributed optical fiber temperature sensor with supervisory control and data acquisition (SCADA) system is proposed and implemented. In the implementation of the integration, both the compatibil... The integration of distributed optical fiber temperature sensor with supervisory control and data acquisition (SCADA) system is proposed and implemented. In the implementation of the integration, both the compatibility with traditional system and the characteristics of distributed optical fiber temperature sensor is considered before Modbus TCP/IP protocol is chosen. The protocol is implemented with open source component Indy. The Modbus TCP/IP protocol used in the system is proved to be fast and robust. 展开更多
关键词 Distributed optical fiber temperature sensor Modbus TCP/IP supervisory control and dataacquisition (SCADA).
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High sensitivity D-shaped hole fiber temperature sensor based on surface plasmon resonance with liquid filling 被引量:3
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作者 SIJUN WENG LI PEI +2 位作者 JIANSHUAI WANG TIGANG NING JING LI 《Photonics Research》 SCIE EI 2017年第2期103-107,共5页
A high sensitivity D-shaped hole double-cladding fiber temperature sensor based on surface plasmon resonance(SPR)is designed and investigated by a full-vector finite element method.Within the D-shaped hole doublecladd... A high sensitivity D-shaped hole double-cladding fiber temperature sensor based on surface plasmon resonance(SPR)is designed and investigated by a full-vector finite element method.Within the D-shaped hole doublecladding fiber,the hollow D-section is coated with gold film and then injected in a high thermo-optic coefficient liquid to realize the high temperature sensitivity for the fiber SPR temperature sensor.The numerical simulation results show that the peaking loss of the D-shaped hole double-cladding fiber SPR is hugely influenced by the distance between the D-shaped hole and fiber core and by the thickness of the gold film,but the temperature sensitivity is almost insensitive to the above parameters.When the thermo-optic coefficient is -2.8×10^(-4)∕℃,the thickness of the gold film is 47 nm,and the distance between the D-shaped hole and fiber core is 5μm,the temperature sensitivity of the D-shaped hole fiber SPR sensor can reach to -3.635 nm∕℃. 展开更多
关键词 High sensitivity D-shaped hole fiber temperature sensor based on surface plasmon resonance with liquid filling MODE
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Low-noise and highly stable optical fiber temperature sensor using modified pulse-reference-based compensation technique
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作者 卞强 宋章启 +4 位作者 宋东雨 张学亮 李炳生 孟洲 于洋 《Chinese Optics Letters》 SCIE EI CAS CSCD 2018年第7期19-22,共4页
We modify the pulse-reference-based compensation technique and propose a low-noise and highly stable optical fiber temperature sensor based on a zinc telluride film-coated fiber tip. The system noise is measured to be... We modify the pulse-reference-based compensation technique and propose a low-noise and highly stable optical fiber temperature sensor based on a zinc telluride film-coated fiber tip. The system noise is measured to be 0.0005 dB, which makes it possible for the detection of the minor reflectivity change of the film at different temperatures. The temperature sensitivity is 0.0034 d B/℃, so the resolution can achieve 0.2℃. The maximum difference of the temperature output values of the sensor at 20℃ at different points in time is 0.39℃. The low cost, ultra-small size, high stability, and good repeatability of the sensor make it a promising temperature sensing device for practical application. 展开更多
关键词 Low-noise and highly stable optical fiber temperature sensor using modified pulse-reference-based compensation technique
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Mathematical Model of Fiber Optic Temperature Sensor Based on Optic Absorption and Experiment Testing
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作者 HU Yan-ling (Yanshan University, Qihuangdao 066004, CHN) 《Semiconductor Photonics and Technology》 CAS 2001年第1期60-64,共5页
On the basis of analysis on the temperature monitoring methods for high voltage devices, a new type of fiber optic sensor structure with reference channel is given. And the operation principle of fiber optic sensor is... On the basis of analysis on the temperature monitoring methods for high voltage devices, a new type of fiber optic sensor structure with reference channel is given. And the operation principle of fiber optic sensor is analysed at large based on the absorption of semiconductor chip. The mathematical model of both devices and the whole system are also given. It is proved by the experiment that this mathematical model is reliable. 展开更多
关键词 fiber optic temperature sensor Optic absorption reference channel Mathematical model
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Thermally Drawn Multi‑material Fibers Based on Polymer Nanocomposite for Continuous Temperature Sensing 被引量:1
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作者 Woo Mi Ryu Yunheum Lee +2 位作者 Yeonzu Son Geonho Park Seongjun Park 《Advanced Fiber Materials》 SCIE EI CAS 2023年第5期1712-1724,共13页
With increasing personalized healthcare,fiber-based wearable temperature sensors that can be incorporated into textiles have attracted more attention in the field of wearable electronics.Here,we present a flexible,wel... With increasing personalized healthcare,fiber-based wearable temperature sensors that can be incorporated into textiles have attracted more attention in the field of wearable electronics.Here,we present a flexible,well-passivated,polymer–nanocomposite–based fiber temperature sensor fabricated by a thermal drawing process of multiple materials.We engineered a preform to optimize material processability and sensor performance by considering the rheological and functional properties of the preform materials.The fiber temperature sensor consisted of a temperature-sensing core made from a conductive polymer composite of thermoplastic polylactic acid,a conductive carbon filler,reduced graphene oxide,and a highly flexible linear low-density polyethylene passivation layer.Our fiber temperature sensor exhibited adequate sensitivity(−0.285%/℃)within a temperature range of 25–45℃with rapid response and recovery times of 11.6 and 14.8 s,respectively.In addition,it demonstrated a consistent and reliable temperature response under repeated mechanical and chemical stresses,which satisfied the requirements for the long-term application of wearable fiber sensors.Furthermore,the fiber temperature sensor sewn onto a daily cloth and hand glove exhibited a highly stable performance in response to body temperature changes and temperature detection by touch.These results indicate the great potential of this sensor for applications in wearable,electronic skin,and other biomedical devices. 展开更多
关键词 fiber temperature sensor Wearable device Thermal drawing process Multi-material thermal drawing conductive polymer composite
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Micro-Structured Fiber Interferometer as Sensitive Temperature Sensor 被引量:2
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作者 F. C. FAVERO M. BECKER, R. SPITTEL M. ROTHHARDT J. KOBELKE H. BARTELT 《Photonic Sensors》 SCIE EI CAS 2013年第3期208-213,共6页
We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core. The wavelength sensitivity for temperature variation was a... We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core. The wavelength sensitivity for temperature variation was as high as △λ/△T= 78 pm/℃ up to 500℃, which was 6 times more sensitive than the fiber Bragg grating temperature sensitivity of △λ/△TT= 13pm/℃ at 1550nm. The sensor device was investigated conceming the sensitivity characteristics and response time. 展开更多
关键词 Micro-structured optical fiber fiber interferometer fiber temperature sensor
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Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing 被引量:6
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作者 王小峰 郭永兴 熊丽 《Chinese Optics Letters》 SCIE EI CAS CSCD 2018年第7期23-28,共6页
We report a fiber Bragg grating(FBG)-based sensor for the simultaneous measurement of a train bearing’s vibration and temperature. A pre-stretched optical fiber with an FBG and a mass is designed for axial vibratio... We report a fiber Bragg grating(FBG)-based sensor for the simultaneous measurement of a train bearing’s vibration and temperature. A pre-stretched optical fiber with an FBG and a mass is designed for axial vibration sensing. Another multiplexed FBG is embedded in a selected copper-based alloy with a high thermal expansion to detect temperature. Experiments show that the sensor possesses a high resonant frequency of 970 Hz, an acceleration sensitivity of 27.28 pm/g, and a high temperature sensitivity of 35.165 pm/℃. A resonant excitation test is also carried out that demonstrates the robustness and reliability of the sensor. 展开更多
关键词 Hybrid fiber Bragg grating sensor for vibration and temperature monitoring of a train bearing FBG
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Humidity and temperature sensor based on GOQDs-PVA coated tapered no-core fiber combined with FBG 被引量:1
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作者 CHENG Qi-hang ZHANG Ai-ling +2 位作者 PAN Hong-gang LI Wen SUN Ce 《Optoelectronics Letters》 EI 2020年第6期428-432,共5页
A simple structure optical fiber sensor for relative humidity(RH) and temperature measurement is proposed and verified in this paper, which is based on graphene oxide quantum dots and polyvinyl alcohol(GOQDs-PVA) comp... A simple structure optical fiber sensor for relative humidity(RH) and temperature measurement is proposed and verified in this paper, which is based on graphene oxide quantum dots and polyvinyl alcohol(GOQDs-PVA) composite coated tapered no-core fiber(NCF) combined with a fiber Bragg grating(FBG). FBG is insensitive to humidity and sensitive to temperature, which is used to compensate temperature of the sensor. Experimental results show this sensor has humidity sensitivity of 143.27 pm/%RH ranging from 30%RH to 80%RH and the temperature sensitivity of 9.21 pm/℃. The proposed sensor has advantages of simple structure, good repeatability, and good stability, which is expected to be used in both RH and temperature measurement in biological and chemical fields. 展开更多
关键词 NCF red Humidity and temperature sensor based on GOQDs-PVA coated tapered no-core fiber combined with FBG PVA
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Experimental study on cross-sensitivity of temperature and vibration of embedded fiber Bragg grating sensors 被引量:2
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作者 陈涛 叶梦力 +1 位作者 刘树良 邓炎 《Optoelectronics Letters》 EI 2018年第2期92-97,共6页
In view of the principle for occurrence of cross-sensitivity, a series of calibration experiments are carried out to solve the cross-sensitivity problem of embedded fiber Bragg gratings(FBGs) using the reference grati... In view of the principle for occurrence of cross-sensitivity, a series of calibration experiments are carried out to solve the cross-sensitivity problem of embedded fiber Bragg gratings(FBGs) using the reference grating method. Moreover, an ultrasonic-vibration-assisted grinding(UVAG) model is established, and finite element analysis(FEA) is carried out under the monitoring environment of embedded temperature measurement system. In addition, the related temperature acquisition tests are set in accordance with requirements of the reference grating method. Finally, comparative analyses of the simulation and experimental results are performed, and it may be concluded that the reference grating method may be utilized to effectively solve the cross-sensitivity of embedded FBGs. 展开更多
关键词 In FBG Experimental study on cross-sensitivity of temperature and vibration of embedded fiber Bragg grating sensors
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Optical Properties of High Sensitivity Fiber Bragg Grating on Temperature Sensor
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作者 Li Wang Shiya He Department of Applied Physics, Beijing University of Technology, Beijing 100022, China 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期843-844,共2页
In this paper, the spectrum shift properties of the center reflection wavelength detected to be based on the FBG sensor with ambient temperature change. The basic theoretical methods and numerical simulation for the s... In this paper, the spectrum shift properties of the center reflection wavelength detected to be based on the FBG sensor with ambient temperature change. The basic theoretical methods and numerical simulation for the spectral properties of uniform Bragg grating is analyzed by using coupling mode theory which is optical properties of high sensitivity fiber Bragg grating on temperature sensor in accordance with experiment. 展开更多
关键词 of in BE ET for FBG Optical Properties of High Sensitivity fiber Bragg Grating on temperature sensor on
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