专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5076696A Dynamic imaging microellipsometry 失效
标题翻译：动态成像微距离测量法
公开(公告)号：US5076696A
公开(公告)日：1991-12-31
申请号：US324494
申请日：1989-03-16
申请人： Ralph F. Cohn , James W. Wagner
发明人： Ralph F. Cohn , James W. Wagner
IPC分类号： G01N21/21 , G01N21/84
CPC分类号： G01N21/211 , G01N2021/1772 , G01N2021/178 , G01N2021/8427
摘要： Dynamic imaging microellipsometry (DIM) is a rapid full-field imaging technique for high resolution studies of thin-films. The DIM concept is based on radiometric polarizer, compensator, specimen, analyzer (PCSA) ellipsometry combined with video and image processing techniques. The theoretical basis for this approach is developed using the Jones vector and matrix formalism. Basic systems design is presented with error model predictions of ellipsometric accuracies better than 0.1.degree. for full-field .psi. and .DELTA. images captured in a few seconds with spatial resolution under 10 microns.
摘要翻译：动态成像微距离测量（DIM）是用于薄膜高分辨率研究的快速全场成像技术。 DIM概念基于辐射偏振器，补偿器，样本，分析仪（PCSA）椭圆光度计与视频和图像处理技术相结合。这种方法的理论基础是使用琼斯矢量和矩阵形式来开发的。对于在10微米以下的空间分辨率下，在几秒内捕获的全场psi和DELTA图像，基本系统设计具有优于0.1度的椭偏准确度的误差模型预测。

2. 发明授权

US5126654A Non-invasive, high resolution detection of electrical currents and electrochemical impedances at spaced localities along a pipeline 失效
标题翻译：沿管道的间隔地点的电流和电化学阻抗的非侵入式高分辨率检测
公开(公告)号：US5126654A
公开(公告)日：1992-06-30
申请号：US504100
申请日：1990-04-02
申请人： John C. Murphy , Glenn S. Hartong , Ralph F. Cohn , Patrick J. Moran
发明人： John C. Murphy , Glenn S. Hartong , Ralph F. Cohn , Patrick J. Moran
IPC分类号： G01N17/00 , G01N17/02 , G01R27/20 , G01V3/04
CPC分类号： G01V3/04 , G01N17/02 , G01R27/20
摘要： Electrical current distribution in the soil surrounding a buried pipeline is detected by applying an AC electrical potential between the pipe and a buried electrode spaced from the pipe. The magnetic field at spaced localities along the pipe arising from currents transverse to the pipe is detected. Additionally, a potential containing a plurality of alternating frequencies is similarly applied to the pipe and the magnetic field induced by the resulting electrical current both along the pipe and transversely of the pipe is detected. The magnetic field is detected by correlation discrimination at spaced locations along the pipe and across the spectrum of the impressed frequencies. The detected data is used to determine the capacitance and resistance of the soil/pipe interface at localities along the pipe and to generate impedance plots which indicate characteristics of that interface.
摘要翻译：通过在管道和与管道间隔开的埋地电极之间施加交流电位来检测埋在管道周围土壤中的电流分布。检测出沿横向于管道的电流产生的沿管道间隔的位置处的磁场。此外，包含多个交变频率的电位类似地应用于管道，并且检测由沿着管道和横向于管道的所得电流引起的磁场。磁场通过沿着管道的间隔位置并且穿过外加的频率的频谱上的相关鉴别来检测。检测到的数据用于确定沿着管道的地点的土壤/管道界面的电容和电阻，并产生指示该界面特征的阻抗图。

3. 发明授权

US06897966B2 Non-contacting mensuration system 失效
标题翻译：非接触式测量系统
公开(公告)号：US06897966B2
公开(公告)日：2005-05-24
申请号：US10116994
申请日：2002-04-05
申请人： Ralph F. Cohn
发明人： Ralph F. Cohn
IPC分类号： G01B11/25 , G01B11/24 , G06K9/00 , H04N15/00
CPC分类号： G01B11/2545 , G06T7/521
摘要： A non-contacting mensuration system including a light source for projecting light on a target; an imager having an image plane; a first optical subsystem configured to project a first image of the light on the target onto a first portion of the image plane of the imager; and a second optical subsystem configured to project a second image of the light on the target onto a second portion of the image plane of the imager so that two different images are obtained from different aspects simultaneously.
摘要翻译：一种非接触式测量系统，包括用于将光投射在目标上的光源; 具有图像平面的成像器; 第一光学子系统被配置为将目标上的光的第一图像投影到成像器的图像平面的第一部分上; 以及第二光学子系统，被配置为将目标上的光的第二图像投影到成像器的图像平面的第二部分上，使得从不同方面同时获得两个不同的图像。

4. 发明授权

US5422495A Optical sensor having a floatation means for detecting fluids through refractive index measurement 失效
$Optical sensor having a floatation means for detecting fluids through refractive index measurement$
标题翻译：具有用于通过折射率测量来检测流体的漂浮装置的光学传感器
公开(公告)号：US5422495A
公开(公告)日：1995-06-06
申请号：US47809
申请日：1993-04-15
申请人： Ralph F. Cohn
发明人： Ralph F. Cohn
IPC分类号： G01N21/43 , G01N15/06
CPC分类号： G01N21/431
摘要： The present invention provides methods and systems for sensing the presence of fluids, such as hydrocarbon-based liquids and/or water, in an ambient environment based upon their light refractive properties. An optical waveguide is deployed in the environment (or a sample chamber disposed within the environment), such that the transmittance of light through the waveguide is attenuated in the presence of the fluid analyte. In one preferred embodiment, the light source is aligned with the waveguide, such that the light entering the waveguide enters one end at an angle relative to the central axis of the waveguide and propagates by internal reflection within the waveguide. Optimal propagation occurs in the absence of the fluid while the presence to the fluid in contact with the waveguide walls causes detectable losses in light propagation due to degradation of the internal reflectance.
摘要翻译：本发明提供了用于在周围环境中基于其光折射性质来感测流体（例如基于烃的液体和/或水）的存在的方法和系统。在环境（或设置在环境中的样品室）中部署光波导，使得在流体分析物的存在下通过波导的光的透射率减弱。在一个优选实施例中，光源与波导对准，使得进入波导的光以相对于波导的中心轴线成一定角度进入一端，并通过波导内的内部反射进行传播。在没有流体的情况下发生最佳传播，而与波导壁接触的流体的存在导致由于内反射率的降低导致的光传播中的可检测的损失。

5. 发明授权

US5330073A Gasoline dispenser leak detectors and automatic shut-off systems 失效
标题翻译：汽油分配器泄漏检测器和自动关闭系统
公开(公告)号：US5330073A
公开(公告)日：1994-07-19
申请号：US47818
申请日：1993-04-15
申请人： J. Randall Collins , Ralph F. Cohn
发明人： J. Randall Collins , Ralph F. Cohn
IPC分类号： B67D7/08 , G01M3/38 , B67D5/14
CPC分类号： B67D7/08 , G01M3/38
摘要： Methods and systems are disclosed for controlling dispensation of hydrocarbon fuels from storage tanks and the like, by employing a sensor in an environment proximal to the dispenser. The sensor preferably includes an optical waveguide having a central axis along which light can transmitted, and the waveguide is disposed in the environment, such that fuel present in the environment contacts at least a portion of the waveguide. The sensor further includes a light source for projecting light into a first end of the waveguide, and a detector for detecting the amount of light propagated through the waveguide. The sensor is electrically connected to a controller which terminates the dispensation of fuel in the event that a leak is detected by the sensor.
摘要翻译：公开了用于通过在靠近分配器的环境中使用传感器来控制来自储罐等的碳氢燃料分配的方法和系统。该传感器优选地包括具有中心轴的光波导，光可穿过该中心轴，并且波导设置在环境中，使得存在于环境中的燃料与波导的至少一部分接触。传感器还包括用于将光投射到波导的第一端的光源和用于检测通过波导传播的光量的检测器。传感器电连接到控制器，该控制器在传感器检测到泄漏的情况下终止燃料分配。

6. 发明授权

US5087873A Non-invasive, high resolution detection of electrical currents and electrochemical impedances at spaced localities along a pipeline 失效
公开(公告)号：US5087873A
公开(公告)日：1992-02-11
申请号：US690290
申请日：1991-04-24
申请人： John C. Murphy , Glenn S. Hartong , Ralph F. Cohn , Patrick J. Moran
发明人： John C. Murphy , Glenn S. Hartong , Ralph F. Cohn , Patrick J. Moran
IPC分类号： G01N17/02 , G01V3/06
CPC分类号： G01V3/06 , G01N17/02
摘要： Electrical current distribution in the soil surrounding a buried pipeline is detected by applying an AC electrical potential between the pipe and a buried electrode spaced from the pipe. The magnetic field at spaced localities along the pipe arising from currents transverse to the pipe is detected. Additionally, a potential containing a plurality of alternating frequencies is similarly applied to the pipe and the magnetic field induced by the resulting electrical current both along the pipe and transversely of the pipe is detected. The magnetic field is detected by correlation discrimination at spaced locations along the pipe and across the spectrum of the impressed frequencies. The detected data is used to determine the capacitance and resistance of the soil/pipe interface at localities along the pipe and to generate impedance plots which indicate characteristics of that interface.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式