The Experts below are selected from a list of 145719 Experts worldwide ranked by ideXlab platform
Hongbo Sun - One of the best experts on this subject based on the ideXlab platform.
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A Highly Sensitive Temperature Sensor Based on a Liquid-Sealed S-Tapered Fiber
IEEE Photonics Technology Letters, 2013Co-Authors: Rui Yang, Yang Xue, Chuang Wang, Chao Chen, Feng Zhu, Bao-lin Zhang, Qi-dai Chen, Hongbo SunAbstract:A highly sensitive Temperature Sensor based on the liquid-sealed S fiber taper (SFT) in a capillary is proposed and experimentally demonstrated. The Temperature independent SFT is turned into a sensitive Temperature Sensor by the thermo-optic effect of the RI liquid and the thermal expansion of the sealant. The total length of the device is 10 mm, which can be further shortened to 1 mm if necessary. The Temperature sensing mechanism of the liquid-sealed SFT is analyzed in detail and experimental results show the sensitivity reaches as high as -1.403 nm/°C. The Temperature sensitivity contributions from different mechanisms are also obtained experimentally.
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ultrasensitive Temperature Sensor based on an isopropanol sealed optical microfiber taper
Optics Letters, 2013Co-Authors: Yang Xue, Rui Yang, Chuang Wang, Chao Chen, Jingchun Guo, Xuanyu Zhang, Congcong Zhu, Hongbo SunAbstract:We demonstrate an ultrasensitive Temperature Sensor based on an isopropanol-sealed optical microfiber taper (OMT) in a capillary. The OMT is highly sensitive to ambient refractive index (RI) with a maximum sensitivity of 18989 nm/RI unit in the range of 1.3955–1.4008. The thermo-optic effect of isopropanol and the thermal expansions of the sealant and sealed liquid turn the OMT into an ultrasensitive Temperature Sensor with the maximum sensitivity of −3.88 nm/°C in the range of 20°C–50°C. The Temperature sensitivity contributions from different mechanisms are also investigated theoretically and experimentally.
Pengfei Wang - One of the best experts on this subject based on the ideXlab platform.
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highly sensitive Temperature Sensor using packaged optical microfiber coupler filled with liquids
Optics Express, 2018Co-Authors: Yuxua Jiang, Gerald Farrell, Zaiji Fang, Elfed Lewis, Pengfei WangAbstract:A novel Temperature Sensor based on a Teflon capillary encapsulated 2 × 2 optical microfiber coupler (OMC) filled with refractive index matching liquids is described. The sealed capillary and the filling liquid are demonstrated to enhance the Temperature sensing performance, achieving a high Temperature sensitivity of 5.3 nm/°C. To the best of our knowledge, the Temperature Sensor described in this article exhibits the highest sensitivity among the OMC structure based fiber optic Temperature Sensors. Experimental results also show that it has good repeatability along with a fast response time of 243 ms.
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fiber tip high Temperature Sensor based on multimode interference
Optics Letters, 2013Co-Authors: Pengfei Wang, Ming Ding, Lin Bo, Chunying Guan, Yuliya Semenova, Qiang Wu, Gerald Farrell, Gilberto BrambillaAbstract:A fiber-tip high-Temperature Sensor based on multimode interference is demonstrated both theoretically and experimentally. The Temperature Sensor presented can measure a broad Temperature interval ranging from room Temperature to 1089°C. An average sensitivity of 11.4 pm/°C is achieved experimentally.
Y. Xiao - One of the best experts on this subject based on the ideXlab platform.
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All-fiber-optic Temperature Sensor based on reduced graphene oxide
Laser Physics Letters, 2014Co-Authors: Jincheng Yu, D. Cao, Q. Wei, S. Tan, Jingshu Zhang, G Liao, Haibao Lu, X Cai, Y. XiaoAbstract:We demonstrate a novel all-fiber-optic Temperature Sensor based on a reduced graphene oxide (rGO) film coated onto a side-polished fiber (SPF). Significantly enhanced interaction between the propagating light and the rGO film can be obtained via strong evanescent field of the SPF. The strong light-graphene interaction results in Temperature sensing with a maximum optical power variation of 11.3 dB in the SPF experimentally. The novel Temperature fiber Sensor has a linear correlation coefficient of 99.4%, a sensitivity of 0.134 dB ° C -1 , a precision of better than 0.03 ° C, and a response speed of better than 0.0228 ° C s -1 . Such an rGO-based all-fiber-optic Temperature Sensor is easy to fabricate, is compatible with fiber-optic systems, and possesses high potentiality in photonics applications such as all-fiber-optic Temperature sensing networks. © 2014 Astro Ltd.
Rui Yang - One of the best experts on this subject based on the ideXlab platform.
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A Highly Sensitive Temperature Sensor Based on a Liquid-Sealed S-Tapered Fiber
IEEE Photonics Technology Letters, 2013Co-Authors: Rui Yang, Yang Xue, Chuang Wang, Chao Chen, Feng Zhu, Bao-lin Zhang, Qi-dai Chen, Hongbo SunAbstract:A highly sensitive Temperature Sensor based on the liquid-sealed S fiber taper (SFT) in a capillary is proposed and experimentally demonstrated. The Temperature independent SFT is turned into a sensitive Temperature Sensor by the thermo-optic effect of the RI liquid and the thermal expansion of the sealant. The total length of the device is 10 mm, which can be further shortened to 1 mm if necessary. The Temperature sensing mechanism of the liquid-sealed SFT is analyzed in detail and experimental results show the sensitivity reaches as high as -1.403 nm/°C. The Temperature sensitivity contributions from different mechanisms are also obtained experimentally.
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ultrasensitive Temperature Sensor based on an isopropanol sealed optical microfiber taper
Optics Letters, 2013Co-Authors: Yang Xue, Rui Yang, Chuang Wang, Chao Chen, Jingchun Guo, Xuanyu Zhang, Congcong Zhu, Hongbo SunAbstract:We demonstrate an ultrasensitive Temperature Sensor based on an isopropanol-sealed optical microfiber taper (OMT) in a capillary. The OMT is highly sensitive to ambient refractive index (RI) with a maximum sensitivity of 18989 nm/RI unit in the range of 1.3955–1.4008. The thermo-optic effect of isopropanol and the thermal expansions of the sealant and sealed liquid turn the OMT into an ultrasensitive Temperature Sensor with the maximum sensitivity of −3.88 nm/°C in the range of 20°C–50°C. The Temperature sensitivity contributions from different mechanisms are also investigated theoretically and experimentally.
Jijun Xiong - One of the best experts on this subject based on the ideXlab platform.
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a flexible Temperature Sensor based on reduced graphene oxide for robot skin used in internet of things
Sensors, 2018Co-Authors: Guanyu Liu, Helei Dong, Hairong Kou, Jinqi Wang, Qiulin Tan, Wen Lv, Lei Zhang, Jijun XiongAbstract:Flexible electronics, which can be distributed on any surface we need, are highly demanded in the development of Internet of Things (IoT), robot technology and electronic skins. Temperature is a fundamental physical parameter, and it is an important indicator in many applications. Therefore, a flexible Temperature Sensor is required. Here, we report a simple method to fabricate three lightweight, low-cost and flexible Temperature Sensors, whose sensitive materials are reduced graphene oxide (r-GO), single-walled carbon nanotubes (SWCNTs) and multi-wall carbon nanotubes (MWCNTs). By comparing linearity, sensitive and repeatability, we found that the r-GO Temperature Sensor had the most balanced performance. Furthermore, the r-GO Temperature Sensor showed good mechanical properties and it could be bent in different angles with negligible resistance change. In addition, the performance of the r-GO Temperature Sensor remained stable under different kinds of pressure and was unaffected by surrounding environments, like humidity or other gases, because of the insulating layer on its sensitive layer. The easy-fabricated process and economy, together with the remarkable performance of the r-GO Temperature Sensor, suggest that it is suitable for use as a robot skin or used in the environment of IoT.
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Substrate Integrated Waveguide (SIW)-Based Wireless Temperature Sensor for Harsh Environments
MDPI AG, 2018Co-Authors: Qiulin Tan, Helei Dong, Lei Zhang, Yanjie Guo, Jijun XiongAbstract:This paper presents a new wireless Sensor structure based on a substrate integrated circular waveguide (SICW) for the Temperature test in harsh environments. The Sensor substrate material is 99% alumina ceramic, and the SICW structure is composed of upper and lower metal plates and a series of metal cylindrical sidewall vias. A rectangular aperture antenna integrated on the surface of the SICW resonator is used for electromagnetic wave transmission between the Sensor and the external antenna. The resonant frequency of the Temperature Sensor decreases when the Temperature increases, because the relative permittivity of the alumina ceramic increases with Temperature. The Temperature Sensor presented in this paper was tested four times at a range of 30–1200 °C, and a broad band coplanar waveguide (CPW)-fed antenna was used as an interrogation antenna during the test process. The resonant frequency changed from 2.371 to 2.141 GHz as the Temperature varied from 30 to 1200 °C, leading to a sensitivity of 0.197 MHz/°C. The quality factor of the Sensor changed from 3444.6 to 35.028 when the Temperature varied from 30 to 1000 °C
