TM930.126 2003010598一种基于组合光调制的光测电度表的设计=Optical measuringkilowatt-hour meter based the light combination modulation[刊,中]/陈新桥(中科院电子学研究所.北京(100080)),陈纪东…//光电子·激光.-2002,13(5...TM930.126 2003010598一种基于组合光调制的光测电度表的设计=Optical measuringkilowatt-hour meter based the light combination modulation[刊,中]/陈新桥(中科院电子学研究所.北京(100080)),陈纪东…//光电子·激光.-2002,13(5)-474-476用矩阵方法分析了电光调制在前、磁光调制在后的组合光调制,得出了能利用这种组合光调制对电能实现光测结论,进而设计出光测电度表。图3参4(于晓光)展开更多
The heat conduction equation is solved in this paper under specific boundary conditions.The coefficients of the obtained distribution equation are simplified with the piecewise integral method.Then the associated mode...The heat conduction equation is solved in this paper under specific boundary conditions.The coefficients of the obtained distribution equation are simplified with the piecewise integral method.Then the associated model for the cylindrical thermal equipment is established.The relationship of the surface temperatures,the material properties and the inner wall state of the cylindrical thermal equipment is described in the associated model.This model is applied to the inner wall running state monitoring of the main pipe.A multi-channel distributed optical fiber temperature measurement system is designed to acquire the external surface temperatures of the main pipe.Then the associated model can be used to analyze the surface temperature data of the main pipe.The location and the physical dimension of the inner wall defect can be got.Therefore,the inner wall defect monitoring of the main pipe can be realized.The feasibility of this method is verified by experiment.This method also provides a theoretical basis for the real-time monitoring of the main pipe’s internal state.展开更多
Quasi-one-dimensional semiconductor nanostructure-based photodetectors show high sensitivity but suffer from slow response speed due to surface reaction. Here, we report a fast-response CdS-CdSxTei-x-CdTe core-shell n...Quasi-one-dimensional semiconductor nanostructure-based photodetectors show high sensitivity but suffer from slow response speed due to surface reaction. Here, we report a fast-response CdS-CdSxTei-x-CdTe core-shell nanobelt photodetector with a rise time of 11 /.is, which is the fastest among CdS based photodetectors reported previously. The improved response speed is ascribed to the sup-pressed possibilities of surface reaction resulting from the core-shell structure and heterojunction among the CdS, CdSxTel-x and CdTe. The measured response spectrum of CdS-CdSxTe1-x-CdTe core-shell nano-belt photodetector covers a wide range from 355 to 785 nm. Moreover, high responsivity （1,520 A/W） and large 3 dB bandwidth （~22.9 kHz） are obtained along with the fast response, The high performance in responsivity, sensitivity, spectral response and photoresponse speed makes this device a promising candidate for practical application in optical sensing, communication and imaging.展开更多
文摘TM930.126 2003010598一种基于组合光调制的光测电度表的设计=Optical measuringkilowatt-hour meter based the light combination modulation[刊,中]/陈新桥(中科院电子学研究所.北京(100080)),陈纪东…//光电子·激光.-2002,13(5)-474-476用矩阵方法分析了电光调制在前、磁光调制在后的组合光调制,得出了能利用这种组合光调制对电能实现光测结论,进而设计出光测电度表。图3参4(于晓光)
基金supported by the Special Foundation for State Major Basic Research Program of China(Grant No.2011ZX04002-101)
文摘The heat conduction equation is solved in this paper under specific boundary conditions.The coefficients of the obtained distribution equation are simplified with the piecewise integral method.Then the associated model for the cylindrical thermal equipment is established.The relationship of the surface temperatures,the material properties and the inner wall state of the cylindrical thermal equipment is described in the associated model.This model is applied to the inner wall running state monitoring of the main pipe.A multi-channel distributed optical fiber temperature measurement system is designed to acquire the external surface temperatures of the main pipe.Then the associated model can be used to analyze the surface temperature data of the main pipe.The location and the physical dimension of the inner wall defect can be got.Therefore,the inner wall defect monitoring of the main pipe can be realized.The feasibility of this method is verified by experiment.This method also provides a theoretical basis for the real-time monitoring of the main pipe’s internal state.
基金supported by the National Natural Science Foundation of China(51672245 and 61735017)the National Key Basic Research Program of China(2015CB352003)+2 种基金Zhejiang Provincial Natural Science Foundation of China(R17F050003)the Fundamental Research Funds for the Central Universitiesthe Program for Zhejiang Leading Team of S&T Innovation
文摘Quasi-one-dimensional semiconductor nanostructure-based photodetectors show high sensitivity but suffer from slow response speed due to surface reaction. Here, we report a fast-response CdS-CdSxTei-x-CdTe core-shell nanobelt photodetector with a rise time of 11 /.is, which is the fastest among CdS based photodetectors reported previously. The improved response speed is ascribed to the sup-pressed possibilities of surface reaction resulting from the core-shell structure and heterojunction among the CdS, CdSxTel-x and CdTe. The measured response spectrum of CdS-CdSxTe1-x-CdTe core-shell nano-belt photodetector covers a wide range from 355 to 785 nm. Moreover, high responsivity （1,520 A/W） and large 3 dB bandwidth （~22.9 kHz） are obtained along with the fast response, The high performance in responsivity, sensitivity, spectral response and photoresponse speed makes this device a promising candidate for practical application in optical sensing, communication and imaging.
