隔离开关在高压线路中是一个非常关键的设备,能否可靠判断隔离开关的状态直接关系到高压作业的生产安全。提出一种将激光感应技术应用到110 k V高压隔离开关的触头开合位置监测的新思路,设计一套激光发射器、激光反射镜、激光感应器的...隔离开关在高压线路中是一个非常关键的设备,能否可靠判断隔离开关的状态直接关系到高压作业的生产安全。提出一种将激光感应技术应用到110 k V高压隔离开关的触头开合位置监测的新思路,设计一套激光发射器、激光反射镜、激光感应器的功能组合,利用激光线束实现对动触头完全闭合和完全打开位置的远距离无接触感测,可有效避开高压一次侧的强电磁场环境的干扰。同时,将采集到的隔离开关状态实时传送到后端的监测中心,可实现隔离开关状态的远程自动化识别。将为真正实现无人值守的远方操作模式开辟新途径。展开更多
For non-destructive optical characterization, laser beam induced current(LBIC) microscopy has been developed into as a quantitative tool to examine individual photodiodes within a large pixel array. Two-dimensional LB...For non-destructive optical characterization, laser beam induced current(LBIC) microscopy has been developed into as a quantitative tool to examine individual photodiodes within a large pixel array. Two-dimensional LBIC microscopy, also generally called photocurrent mapping(PC mapping), can provide spatially resolved information about local electrical properties and p-n junction formation in photovoltaic infrared(including visible light) photodetectors from which it is possible to extract material and device parameters such as junction area, junction depth, diffusion length, leakage current position and minority carrier diffusion length etc. This paper presents a comprehensive review of research background, operating principle, fundamental issues, and applications of LBIC or PC mapping.展开更多
An automatic system for marine meiobenthos separation was developed by using laser-induced fluorescence tech- nology. Rose Bengal was used as organism dye and the spectrums of Rose Bengal were measured. Laser-induced ...An automatic system for marine meiobenthos separation was developed by using laser-induced fluorescence tech- nology. Rose Bengal was used as organism dye and the spectrums of Rose Bengal were measured. Laser-induced fluorescence system was established to detect marine meiobenthos in sediments. Data obtained from experiments were analyzed by using a mathematical model. The results showed that laser-induced fluorescence technology worked well in the system. The system could select the meiobenthos efficiently and precisely.展开更多
这是一篇在洛斯·阿拉莫斯国立实验室(LANL)三年来进行的实验室控制研究和开发(LDRD)项目的最终报告。发动机的可靠预点火在民用和军用飞机的高空安全飞行中起着决定性的作用。该项目为最佳激光感应的燃料点火和以激光为基础的点火...这是一篇在洛斯·阿拉莫斯国立实验室(LANL)三年来进行的实验室控制研究和开发(LDRD)项目的最终报告。发动机的可靠预点火在民用和军用飞机的高空安全飞行中起着决定性的作用。该项目为最佳激光感应的燃料点火和以激光为基础的点火器的有效开伞研究提供了关键性的研究基础。这项工作起初涉及到与B．F.Goodrich Aerospace and Laser Fare，Inc．的合作研究和开发协议。所做的工作包括通过完整的实验和理论模型为涡轮发动机发射器产生的燃料烟雾剂的激光感应点火提供基础了解。另外，我们确定了可以减小激光器包装尺寸、重量、复杂性和能量消耗的最先进的激光点火器的结构。这些改进了的点火原理表明，在燃料／混合气的宽范围以外和燃料温度低于-40°F时能够可靠点燃喷气发动机燃料气溶胶。已经证实燃料点火性能远优于用类似于激光能量的现代化激光一火花点火性能。我们还研究了一种可有效从激光窗表面除去碳氢化合物燃料燃烧残渣不透明沉积物的以激光为基础的方法。有7篇专利或是发表或是因为该项目的技术发展情况正在进行中。展开更多
文摘隔离开关在高压线路中是一个非常关键的设备,能否可靠判断隔离开关的状态直接关系到高压作业的生产安全。提出一种将激光感应技术应用到110 k V高压隔离开关的触头开合位置监测的新思路,设计一套激光发射器、激光反射镜、激光感应器的功能组合,利用激光线束实现对动触头完全闭合和完全打开位置的远距离无接触感测,可有效避开高压一次侧的强电磁场环境的干扰。同时,将采集到的隔离开关状态实时传送到后端的监测中心,可实现隔离开关状态的远程自动化识别。将为真正实现无人值守的远方操作模式开辟新途径。
基金supported by the State Key Program for Basic Research of China(Grant No.2014CB921600)the National Natural Science Foundation of China(Grant Nos.11322441 and 11274331)the Fund of Shanghai Science and Technology Foundation(Grant No.14JC1406400)
文摘For non-destructive optical characterization, laser beam induced current(LBIC) microscopy has been developed into as a quantitative tool to examine individual photodiodes within a large pixel array. Two-dimensional LBIC microscopy, also generally called photocurrent mapping(PC mapping), can provide spatially resolved information about local electrical properties and p-n junction formation in photovoltaic infrared(including visible light) photodetectors from which it is possible to extract material and device parameters such as junction area, junction depth, diffusion length, leakage current position and minority carrier diffusion length etc. This paper presents a comprehensive review of research background, operating principle, fundamental issues, and applications of LBIC or PC mapping.
基金Project (Grant No. DY105-03-01-15) supported by "Tenth FiveYear Plan of R & D of International Deep-Sea" of National OceanMineral Resources R & D Association, China
文摘An automatic system for marine meiobenthos separation was developed by using laser-induced fluorescence tech- nology. Rose Bengal was used as organism dye and the spectrums of Rose Bengal were measured. Laser-induced fluorescence system was established to detect marine meiobenthos in sediments. Data obtained from experiments were analyzed by using a mathematical model. The results showed that laser-induced fluorescence technology worked well in the system. The system could select the meiobenthos efficiently and precisely.
文摘这是一篇在洛斯·阿拉莫斯国立实验室(LANL)三年来进行的实验室控制研究和开发(LDRD)项目的最终报告。发动机的可靠预点火在民用和军用飞机的高空安全飞行中起着决定性的作用。该项目为最佳激光感应的燃料点火和以激光为基础的点火器的有效开伞研究提供了关键性的研究基础。这项工作起初涉及到与B．F.Goodrich Aerospace and Laser Fare，Inc．的合作研究和开发协议。所做的工作包括通过完整的实验和理论模型为涡轮发动机发射器产生的燃料烟雾剂的激光感应点火提供基础了解。另外，我们确定了可以减小激光器包装尺寸、重量、复杂性和能量消耗的最先进的激光点火器的结构。这些改进了的点火原理表明，在燃料／混合气的宽范围以外和燃料温度低于-40°F时能够可靠点燃喷气发动机燃料气溶胶。已经证实燃料点火性能远优于用类似于激光能量的现代化激光一火花点火性能。我们还研究了一种可有效从激光窗表面除去碳氢化合物燃料燃烧残渣不透明沉积物的以激光为基础的方法。有7篇专利或是发表或是因为该项目的技术发展情况正在进行中。
