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一种低成本的基于温度敏感光纤和OTDR技术的新型分布式温度传感器 被引量:2
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作者 郭雨宽 金靖 张浩石 《激光杂志》 北大核心 2019年第2期11-14,共4页
提出了一种基于温度敏感光纤和光时域反射(OTDR)原理的新型分布式温度传感器。选取标准商用单模光纤作为传感光纤。根据传感原理分析,从光纤RIA温度敏感性和OTDR损耗测量原理两方面出发,建立了传感器的通用数学模型,在此基础上对传感器... 提出了一种基于温度敏感光纤和光时域反射(OTDR)原理的新型分布式温度传感器。选取标准商用单模光纤作为传感光纤。根据传感原理分析,从光纤RIA温度敏感性和OTDR损耗测量原理两方面出发,建立了传感器的通用数学模型,在此基础上对传感器的关键性能指标进行仿真分析与讨论,并根据模型和设计方法设计了传感光纤,进而对该分布式温度传感器进行实验测试。实验结果表明,在-40℃~150℃温度范围内,其平均温度灵敏度为0. 02 dB/km/℃,温度分辨率优于1℃。 展开更多
关键词 温度敏感光纤 光时域反射技术 分布式温度传感器
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The Model of Indirect Pricing Transactions and the New Boundaries of the Sharing Economy
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作者 Ge Jun guo yukuan 《Contemporary Social Sciences》 2021年第1期55-62,共8页
In recent years,the sharing economy has become more prevalent in many lives.While bringing convenience to the public,it has also improved resource efficiency,thus gradually driving economic development.By studying ind... In recent years,the sharing economy has become more prevalent in many lives.While bringing convenience to the public,it has also improved resource efficiency,thus gradually driving economic development.By studying indirect pricing transactions,the authors have discovered a new sort of sharing economics which may be able to resolve the issue presented by intangible assets(such as entrepreneurship)and provide new ideas for addressing social problems.Compared with the traditional sharing economy,this new economic pattern has wider potential utility.The authors hold that their indirect pricing theory establishes the theoretical foundation of new sharing economics,while the model of indirect-pricing transaction extends the boundaries for the existing sharing economy. 展开更多
关键词 sharing economy indirect pricing new sharing economy new economic pattern
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