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1. 发明授权

US5621522A Fiber optic probe for determination of trace levels of organic pollutants using Raman spectroscopy 失效
标题翻译：使用拉曼光谱法测定有机污染物微量水平的光纤探头
公开(公告)号：US5621522A
公开(公告)日：1997-04-15
申请号：US417164
申请日：1995-04-05
申请人： Kenneth J. Ewing , Thomas Bilodeau , Gregory Nau , Ishwar Aggarwal
发明人： Kenneth J. Ewing , Thomas Bilodeau , Gregory Nau , Ishwar Aggarwal
IPC分类号： G01N21/65 , G01N21/77 , G01J3/44
CPC分类号： G01N21/65 , G01N21/7703 , G01N2021/656
摘要： The present invention is a chemical sensor including a polymer substrate capable of reversible adsorption of an analyte organic compound, a source of Raman excitation radiation, positioned for directing this Raman excitation radiation onto the substrate, thus generating a Raman signal, and a Raman signal detector, positioned for detecting this Raman signal. Another aspect of this invention is the sensing tip of such a sensor, including a polymer substrate capable of reversible adsorption of an analyte organic compound, focusing means for directing excitation radiation onto the polymer substrate to generate a Raman signal from the organic compound, and collection means, for transmitting this Raman signal to a detector. Another aspect of this invention is an array of sensing tips, each using a different polymer substrate selected for selective adsorption of an analyte species, coupled to an excitation radiation source and a detector.
摘要翻译：本发明是一种化学传感器，其包括能够可逆吸附分析物有机化合物的聚合物基质，拉曼激发辐射源，其被定位成将该拉曼激发辐射引导到基底上，从而产生拉曼信号，以及拉曼信号检测器，用于检测该拉曼信号。本发明的另一方面是这种传感器的感测尖端，包括能够可分离吸附分析物有机化合物的聚合物基底，用于将激发辐射引导到聚合物基底上以产生来自有机化合物的拉曼信号的聚焦装置和收集用于将该拉曼信号传输到检测器的装置。本发明的另一方面是感测尖端的阵列，每个感测尖端使用选择性吸附分析物物质的不同聚合物基底，耦合到激发辐射源和检测器。

2. 依法登记的发明

USH1470H Refractive index-based sensor for the discrimination of chlorinated hydrocarbons from groundwater 失效
$Refractive index-based sensor for the discrimination of chlorinated hydrocarbons from groundwater$
标题翻译：用于区分来自地下水的氯代烃的折射率传感器
公开(公告)号：USH1470H
公开(公告)日：1995-08-01
申请号：US219188
申请日：1994-03-28
申请人： Kenneth J. Ewing , Gregory Nau , Thomas Bilodeau , Irwin Schneider , Ishwar Aggarwal
发明人： Kenneth J. Ewing , Gregory Nau , Thomas Bilodeau , Irwin Schneider , Ishwar Aggarwal
IPC分类号： G01N21/43 , G01N21/41
CPC分类号： G01N21/43
摘要： A refractive index-based sensor uses a light source and an optical fiber to direct an optical beam towards a sensor/environment face at a specific angle. The sensor has a predetermined shape selected such that the light directed into the sensor will have a specific angle of incidence designed to detect a plurality of liquids. A second optical fiber carries the light reflected off the sensor/environment face to a photodetector. The optical beam will either be transmitted through or reflected off the sensor/environment face based upon the refractive indices of the sensor and the environment and upon the angle of incidence of the optical beam. The amount of light reflected is indicative of the refractive index of the material in a given area of the sensor/environment face and, thus, the type of material. By adjusting the angle at which the light is directed to the sensor/environment face, the photodetector response can be calibrated to identify the type of liquid present at the sensor/environment face.

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