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Low loss low cost spontaneous Brillouin-based system for simultaneous distributed strain and temperature sensing

机译：低损耗低成本自发布里渊系统，用于同时分布式应变和温度传感

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摘要

Using a high peak power, narrow linewidth pulsed source coupled with a low loss interferometric fibre optic filtering system, an accurate method of resolving the Brillouin intensity and frequency shift variations in optical fibres for simultaneous distributed strain and temperature sensing is demonstrated for a range of 15km.

机译：使用高峰值功率，窄线宽脉冲源与低损耗干涉式光纤滤波系统相结合，在15 km的范围内，展示了解决光纤中布里渊强度和频移变化以同时分布应变和温度的精确方法。

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Kee H.H.; Lees G.P.; Newson T.P.;
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年度 2000
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专利

1. All-fiber system for simultaneous interrogation of distributed strain and temperature sensing by spontaneous Brillouin scattering [J] . Huai H. Kee, Gareth P. Lees, Trevor P. Newson Optics Letters . 2000,第10期

机译：通过自发布里渊散射同时询问分布式应变和温度传感的全光纤系统
2. Simultaneous strain and temperature measurements with polarization-maintaining fibers and their error analysis by use of a distributed Brillouin loss system [J] . Xiaoyi Bao, Qinrong Yu, Liang Chen Optics Letters . 2004,第12期

机译：使用分布式布里渊损耗系统同时测量偏振保持光纤的应变和温度，并进行误差分析
3. Simultaneous measurement of strain and temperature using a hybrid local and distributed optical fiber sensing system [J] . Jianping He, Zhi Zhou, Jinping Ou Measurement . 2014,第1期

机译：使用本地和分布式混合光纤传感系统同时测量应变和温度
4. Low-loss, low-cost spontaneous Brillouin-based system for simultaneous distributed strain and temperature sensing [C] . H. H. Kee, G. P. Lees, T. P. Newson Conference on Lasers and Electro-Optics . 2000

机译：基于低损耗，低成本的自发性布里渊系，用于同时分布式应变和温度传感
5. Characterization of the Brillouin loss spectrum for simultaneous distributed sensing of strain and temperature. [D] . Smith, Jeffrey Peter. 1999

机译：布里渊损耗谱的表征，用于同时分布应变和温度传感。
6. Optical Fiber Sensing Cables for Brillouin-Based Distributed Measurements [O] . Filippo Bastianini, Raffaella Di Sante, Francesco Falcetelli, 2019

机译：用于基于布里渊的分布式测量的光纤传感电缆
7. Endothermy of dynastine scarab beetles (Cyclocephala colasi) associated with pollination biology of a thermogenic arum lily (Philodendron solimoesense) : Cyclocephala colasi beetles are facultative endotherms that spend most of their adult lives inside the inflorescences of Philodendron solimoesense, where ambient temperature (Ta) averages about 28°C due to floral thermogenesis. Measurements of respiration within a range of Ta showed that active beetles became spontaneously endothermic at Ta below 28°C but were rarely endothermic above it. There was no evidence of endothermy within the inflorescences, indicating that activities in the floral chamber can occur without the high energy expense of endothermy. Bouts of endothermy occurred at lower Ta in respirometer chambers mainly in the evening, when the insects normally fly from one inflorescence to another, and during the night, when they normally eat and mate within the inflorescence. Patterns of endothermy in individual episodes were studied in non-flying beetles with respirometry and infrared thermal imaging. Heat was generated in the thorax by oscillatory waves of respiration that were coupled with thoracic temperature (Tth) increases. Stationary beetles could regulate Tth at about 33°C independently of Ta between 16 and 29°C. At Ta20°C, this represents a 116-fold increase in metabolic rate over resting, ectothermic values. Endothermy was clearly a requirement for flight, and beetles departing inflorescences warmed to about 30°C before take-off. During flight, Tth was dependent on Ta, decreasing from 37 to 28°C at Ta of 37 to 20°C, respectively. The lowest Ta at which flight could occur was about 20°C. Thermal conductance of stationary, endothermic beetles increased at higher metabolic rates, probably because of increased ventilatory heat loss. [O] . Seymour, R.S., White, C.R., Gibernau, Marc 2009

机译：与产热香芋百合（Philodendron solimoesense）授粉生物学相关的动态圣甲虫（Cyclocephala colasi）吸热：Cyclocephala colasi甲虫是兼性吸热体，它们大部分成年生活都在Philodendron solimoesense的花序中，其平均温度（Ta）由于花的生热作用，温度约为28°C。在Ta范围内的呼吸测量表明，活跃的甲虫在Ta低于28°C时会自发吸热，而在Ta高于28°C时很少吸热。在花序中没有吸热的迹象，表明花室中的活动可以在没有高的吸热能量消耗的情况下发生。吸热的爆发主要发生在晚上，当昆虫通常从一个花序飞到另一个花序时，以及在晚上，它们通常在花序中进食并交配时，在呼吸计室的较低Ta处发生。在非飞行甲虫中通过呼吸测定法和红外热成像研究了单个发作中的吸热模式。伴随着胸温（Tth）升高的呼吸振荡波在胸腔中产生热量。固定甲虫可以在约33°C的温度下调节Tth，而与Ta在16至29°C之间的温度无关。在Ta20°C下，这表示其代谢速率比静止的，等温的升高116倍。吸热显然是飞行的要求，离开花序的甲虫在起飞前会升温到约30°C。在飞行过程中，Tth取决于Ta，在Ta从37降至20°C时，Tth分别从37°C降至28°C。可能发生飞行的最低Ta约为20°C。固定的，吸热的甲虫的热导率以较高的代谢率增加，这可能是由于通风热损失增加所致。

Low loss low cost spontaneous Brillouin-based system for simultaneous distributed strain and temperature sensing

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