公开(公告)号：US20180080891A1

公开(公告)日：2018-03-22

申请号：US15271692

申请日：2016-09-21

Applicant: General Electric Company

Inventor： Radislav Alexandrovich Potyrailo ,  Nasr Alkadi

IPC: G01N27/04 ,  G01N33/00

CPC classification number: G01N27/04 ,  G01N27/026 ,  G01N33/0036

Abstract: Systems and methods are provided for environment sensing. The system includes a sensor having a sensing material and at least one pair of electrodes in contact with the sensing material, the sensing material configured to be in contact with an ambient environment. The system includes a controller circuit electrically coupled to the at least one pair of electrodes. The controller circuit is configured to generate a stimulation waveform for application to the sensing material of the sensor via the at least one pair of electrodes. The controller circuit is configured to receive an electrical signal from the at least one pair of electrodes representative of an impedance response of the sensing material, and analyze the impedance response of the sensing material at frequencies that provide a linear response of the sensing material to an analyte of interest and at least partially reject effects of interferences.

公开(公告)号：US09880142B2

公开(公告)日：2018-01-30

申请号：US15155748

申请日：2016-05-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Radislav Alexandrovich Potyrailo ,  Wajdi Mohammad Ahmad ,  Nasr Alkadi ,  John Andrew Westerheide ,  Glen Peter Koste ,  Sachin Narahari Dekate

IPC: G01N21/00 ,  G01N33/18 ,  G01N27/12 ,  G01N21/77 ,  G01N21/78 ,  G02B6/02 ,  G02B6/122 ,  G01N33/00 ,  G01N21/84

CPC classification number: G01N33/1833 ,  G01N21/7746 ,  G01N21/783 ,  G01N21/8483 ,  G01N27/125 ,  G01N33/0047 ,  G01N2021/7779 ,  G01N2201/12 ,  G02B6/00 ,  G02B6/02095 ,  G02B6/1225

Abstract: A photonic sensor system includes: a photodetector; a signal processor coupled to the photodetector; and a sensor structure configured to provide fluid-response selectivity, spatially distribute light, and to receive light from a light source and convey light to the photodetector. The sensor structure includes a plurality of fluid sensitive interferometric nanostructure layers manufactured on a substrate; wherein the plurality of fluid sensitive interferometric nanostructure layers includes alternating high and low porosity layers.

公开(公告)号：US20160334327A1

公开(公告)日：2016-11-17

申请号：US15155748

申请日：2016-05-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Radislav Alexandrovich Potyrailo ,  Wajdi Mohammad Ahmad ,  Nasr Alkadi ,  John Andrew Westerheide ,  Glen Peter Koste ,  Sachin Narahari Dekate

IPC: G01N21/25 ,  G01N21/27 ,  G01N21/29

CPC classification number: G01N33/1833 ,  G01N21/7746 ,  G01N21/783 ,  G01N21/8483 ,  G01N27/125 ,  G01N33/0047 ,  G01N2021/7779 ,  G01N2201/12 ,  G02B6/00 ,  G02B6/02095 ,  G02B6/1225

Abstract: A fluid sensor that includes fluid sensitive interferometric nanostructure layers configured into an open-air resonant structure. Another fluid sensor also includes a polarization sensitive photodetector configured to detect optical contributions of different components of a fluid to the structure. A photonic sensor system includes: a photodetector; a signal processor coupled to the photodetector; and a sensor structure configured to provide fluid-response selectivity, spatially distribute light, and to receive light from a light source and convey light to the photodetector. A method of selective measurement of components in fluid in a process area includes: exposing a sensing structure to the fluid; interrogating the sensing structure with light from outside the process area; measuring a change in optical properties of the sensing structure; correlating the measured change to a stored value; and providing quantitative values of levels of the components in the fluid.

Abstract translation: 流体传感器，其包括配置成露天共振结构的流体敏感的干涉纳米结构层。 另一种流体传感器还包括偏振敏感光电检测器，其被配置为检测流体与结构的不同成分的光学贡献。 光子传感器系统包括：光电检测器; 耦合到所述光电检测器的信号处理器; 以及传感器结构，其被配置为提供流体响应选择性，空间分布光，并且从光源接收光并将光传送到光电检测器。 在处理区域中选择性地测量流体中的组分的方法包括：将感测结构暴露于流体; 用来自处理区外的光询问感测结构; 测量感测结构的光学特性的变化; 将测量的变化与存储的值相关联; 并提供液体中组分水平的定量值。

公开(公告)号：US20160223484A1

公开(公告)日：2016-08-04

申请号：US14710299

申请日：2015-05-12

Applicant: General Electric Company

Inventor： Radislav Alexandrovich Potyrailo ,  Cheryl Margaret Surman ,  Andrew Arthur Paul Burns ,  Nandini Nagraj

IPC: G01N27/02 ,  G01N33/483

CPC classification number: G01N27/026 ,  G01N27/02 ,  G01N33/483 ,  G01N33/48792

Abstract: Methods and sensors for selective fluid sensing are provided. Each sensor includes a resonant inductor-capacitor-resistor (LCR) sensor that is coated with a sensing material. In order to collect data, an impedance spectrum is acquired over a relatively narrow frequency range, such as the resonant frequency range of the LCR circuit. A multivariate signature may be calculated from the acquired spectrum to discern the presence of certain fluids and/or fluid mixtures. The presence of fluids is detected by measuring the changes in dielectric, dimensional, resistance, charge transfer, and other changes in the properties of the materials employed by observing the changes in the resonant electronic properties of the circuit. By using a mathematical procedure, such as principal components analysis (PCA) and others, multiple fluids and mixtures can be detected in the presence of one another, even in a high humidity environment or an environment wherein one or more fluids has a substantially higher concentration (e.g. 10×, 1,000,000×) compared to other components in the mixture.

Abstract translation: 提供了选择性流体感测的方法和传感器。 每个传感器包括一个涂有传感材料的谐振电感 - 电容电阻（LCR）传感器。 为了收集数据，在相对窄的频率范围（例如LCR电路的谐振频率范围）上获取阻抗谱。 可以从所获得的光谱计算多变量特征，以辨别某些流体和/或流体混合物的存在。 通过观察电路的谐振电子特性的变化来测量所用材料的介电性质，尺寸，电阻，电荷转移和其它变化的变化来检测流体的存在。 通过使用诸如主成分分析（PCA）等的数学方法，可以在彼此存在的情况下检测多种流体和混合物，即使在高湿度环境或其中一种或多种流体具有显着更高浓度的环境 （例如10×1,000,000×）与混合物中的其他成分相比。

公开(公告)号：US20140019067A1

公开(公告)日：2014-01-16

申请号：US14031965

申请日：2013-09-19

Applicant: General Electric Company

Inventor： Radislav Alexandrovich Potyrailo ,  Cheryl Margaret Surman

IPC: G01N27/02

CPC classification number: G01N27/02 ,  G01N27/025 ,  G01N33/48792 ,  Y10T29/49007

Abstract: Methods and sensors for selective fluid sensing are provided. A sensor includes a resonant inductor-capacitor-resistor (LCR) circuit and a sensing material disposed over a sensing region. The sensing region comprises at least a portion of the LCR circuit. Temperature-dependent response coefficients of inductance L, capacitance C, and resistance R properties of the LCR circuit and the sensing material are at least approximately 5 percent different from one another. The difference in the temperature-dependent response coefficients of the properties of the LCR circuit and the sensing material enables the sensor to selectively detect analyte fluids from an analyzed fluid mixture substantially independent of temperature.

Abstract translation: 提供了选择性流体感测的方法和传感器。 传感器包括谐振电感器 - 电容器电阻（LCR）电路和设置在感测区域上的感测材料。 感测区域包括LCR电路的至少一部分。 LCR电路和传感材料的电感L，电容C和电阻R性质的温度依赖性响应系数至少大约相差5％。 LCR电路和感测材料的性质的温度依赖性响应系数的差异使得传感器能够基本上独立于温度从分析的流体混合物中选择性地检测分析物流体。