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1. 发明授权

US06278106B1 Optical sensor and sensing method 失效
标题翻译：光学传感器和传感方法
公开(公告)号：US06278106B1
公开(公告)日：2001-08-21
申请号：US09123207
申请日：1998-07-27
申请人： Shinzo Muto , Masayuki Morisawa , Hideaki Machida , Chuanxin Liang , Noda Naoto
发明人： Shinzo Muto , Masayuki Morisawa , Hideaki Machida , Chuanxin Liang , Noda Naoto
IPC分类号： G01N2100
CPC分类号： G01N21/7703 , G02B6/02033
摘要： The optical sensor of the present invention detects both the existence and concentration of substances by changing from light leakage mode to wave guide mode when the sensor is exposed to the substances to be detected. The changes in the mode results in a large change in optical output. This change is measured and the substance is identified and/or measured with high sensitivity. The change in light leakage mode to wave guide mode of the sensor is possible by having a clad material around the core material, with the clad material decreasing in the index of refraction when exposed to the substance to be detected. When the index of refraction of the clad becomes less than that of the core material, the sensor changes from the light leakage mode and operates in the wave guide mode. Changes in light intensity output from the sensor is measured over time, and correlated to the substance to be detected.
摘要翻译：本发明的光学传感器通过在将传感器暴露于待检测物质时从漏光模式变为波导模式来检测物质的存在和浓度。该模式的变化导致光输出的大的变化。测量该变化并且以高灵敏度识别和/或测量物质。通过在芯材周围具有包层材料，可以使传感器的波导模式的漏光模式变化，包层材料在指数中降低当暴露于待检测物质时。当包层的折射率变得小于芯材的折射率时，传感器从漏光模式变化并以波导模式工作。随着时间的推移测量传感器输出的光强度变化，并与被检测物质相关。

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