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A high-efficiency capillary-fiber optic probe is developed for measuring the concentration of trace elements. The optimal probe consists of an excitation fiber (incident fiber) and a ring of collection fibers which is made up of 6 fibers. Both simulation and experiment results show that the structure gives the higher coupling efficiency with a reasonable capillary diameter. The coupling efficiency of the probe is determined by the number and arrangement of the fibers, internal diameter and length of the fiber optic sensing probe, and the end reflectivity of the capillary. The concentra-tion of the carbonic anhydrase solution and dezincification reagents also affect the efficiency. A fluorescence efficiency of 2.4% is obtained in zinc detection experiment. 相似文献
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德国Neuenhauser公司参展产品NeuenhauserProductsatCITME’94¥//Neuenhauser公司在OTMr’94第2展厅A3展位展出以下设备:(1)DW2000系列批量络筒机,采用最小/最大控制。采用模块设计的Neue... 相似文献
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