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    SHEET CONDUCTANCE/RESISTANCE MEASUREMENT SYSTEM
    31.
    发明申请
    SHEET CONDUCTANCE/RESISTANCE MEASUREMENT SYSTEM 有权
    表格导电/电阻测量系统

    公开(公告)号：US20140103917A1

    公开(公告)日：2014-04-17

    申请号：US13868482

    申请日：2013-04-23

    Applicant: LEHIGHTON ELECTRONICS, INC.

    Inventor： Austin Blew ,  Michael Bronko ,  Steven C. Murphy ,  Steve Bell

    IPC: G01N27/04

    CPC classification number: G01N27/04 ,  A61B5/02028 ,  A61B5/053 ,  G01N27/023 ,  G01N27/028

    Abstract: An apparatus for testing of electrical or physical properties of a material include a single coil sensor mounted adjacent to a sample of the material. Sheet conductance of a wide variety of materials may be measured using the single coil to determine if the material conforms to generally accepted standards for the use to which the material will be put. In some examples, the material is a semiconductor wafer or flat panel. In other examples, the material is the body tissue of a patient. A non-invasive technique using the apparatus is also disclosed for monitoring the health of patient tissue such as musculature, and/or to determine whether healthy circulation is present, by measuring the conductance of the patient tissue in response to a magnetic field applied by the single coil. The single coil may be hand held, or it may be movable using an automated positioning system under computer control.

    Abstract translation: 用于测试材料的电学或物理性质的装置包括邻近材料样品安装的单个线圈传感器。 可以使用单个线圈测量各种材料的片材电导，以确定材料是否符合通常接受的材料使用标准。 在一些示例中，材料是半导体晶片或平板。 在其他实例中，材料是患者的身体组织。 还公开了使用该装置的非侵入性技术，用于通过响应于由所述装置施加的磁场来测量患者组织的电导，来监测患者组织的健康，例如肌肉组织和/或确定是否存在健康的循环 单线圈 单个线圈可以是手持的，或者可以在计算机控制下使用自动定位系统来移动。

    Sheet conductance/resistance measurement system
    34.
    发明授权
    Sheet conductance/resistance measurement system 有权

    公开(公告)号：US08428706B2

    公开(公告)日：2013-04-23

    申请号：US11595306

    申请日：2006-11-10

    Applicant: Austin Blew ,  Michael Bronko ,  Steven C. Murphy ,  Steve Bell

    Inventor： Austin Blew ,  Michael Bronko ,  Steven C. Murphy ,  Steve Bell

    IPC: A61B5/00

    CPC classification number: G01N27/04 ,  A61B5/02028 ,  A61B5/053 ,  G01N27/023 ,  G01N27/028

    Abstract: An apparatus for testing of electrical or physical properties of a material include a single coil sensor mounted adjacent to a sample of the material. Sheet conductance of a wide variety of materials may be measured using the single coil to determine if the material conforms to generally accepted standards for the use to which the material will be put. In some examples, the material is a semiconductor wafer or flat panel. In other examples, the material is the body tissue of a patient. A non-invasive technique using the apparatus is also disclosed for monitoring the health of patient tissue such as musculature, and/or to determine whether healthy circulation is present, by measuring the conductance of the patient tissue in response to a magnetic field applied by the single coil. The single coil may be hand held, or it may be movable using an automated positioning system under computer control.

    METHOD AND DEVICE FOR MEASURING ELECTRICAL IMPEDANCE OF BIOLOGIC TISSUES
    35.
    发明申请
    METHOD AND DEVICE FOR MEASURING ELECTRICAL IMPEDANCE OF BIOLOGIC TISSUES 有权
    用于测量生物组织电阻抗的方法和装置

    公开(公告)号：US20130006136A1

    公开(公告)日：2013-01-03

    申请号：US13534778

    申请日：2012-06-27

    Applicant: Pasquale Biancolillo ,  Stefano Rossi ,  Giuseppe Bruno ,  Angelo Recchia

    Inventor： Pasquale Biancolillo ,  Stefano Rossi ,  Giuseppe Bruno ,  Angelo Recchia

    IPC: A61B5/053

    CPC classification number: A61B5/0535 ,  A61B5/6804 ,  G01N27/028

    Abstract: A device for measuring an electrical impedance of biologic tissue may include electrodes configured to contact the biologic tissue and generate a differential voltage thereon. The device may include a first circuit coupled to the electrodes and configured to force an oscillating input signal therethrough, and a differential amplitude modulation (AM) demodulator coupled to the plurality of electrodes. The differential AM demodulator may be configured to demodulate the differential voltage, and generate a base-band signal representative of the demodulated differential voltage. The device may further include an output circuit downstream from the differential AM demodulator and may be configured to generate an output signal representative of the electrical impedance as a function of the base-band signal.

    Abstract translation: 用于测量生物组织的电阻抗的装置可以包括被配置为接触生物组织并在其上产生差分电压的电极。 该装置可以包括耦合到电极并被配置为迫使振荡输入信号通过的第一电路，以及耦合到多个电极的差分幅度调制（AM）解调器。 差分AM解调器可以被配置为解调差分电压，并且生成表示解调的差分电压的基带信号。 该装置还可以包括在差分AM解调器下游的输出电路，并且可以被配置为产生表示作为基带信号的函数的电阻抗的输出信号。

    SYSTEMS AND METHODS FOR DETERMINING A CONCENTRATION OF BIODIESEL IN A MIXTURE OF BIODIESEL AND PETRODIESEL
    36.
    发明申请
    SYSTEMS AND METHODS FOR DETERMINING A CONCENTRATION OF BIODIESEL IN A MIXTURE OF BIODIESEL AND PETRODIESEL 审中-公开
    用于确定生物物质和PETRODIESEL混合物中生物体浓度的系统和方法

    公开(公告)号：US20090001961A1

    公开(公告)日：2009-01-01

    申请号：US11771516

    申请日：2007-06-29

    Applicant: Yingjie Lin ,  Su-Chee S. Wang ,  Ming-Cheng Wu

    Inventor： Yingjie Lin ,  Su-Chee S. Wang ,  Ming-Cheng Wu

    IPC: G01N27/00

    CPC classification number: G01N33/2829 ,  G01N27/028

    Abstract: Systems and methods for determining a concentration of biodiesel in a mixture of biodiesel and petrodiesel are provided. In one exemplary embodiment, a method includes receiving an oscillatory signal at an inductance-capacitance-resistance circuit. The circuit has a sensing element fluidly communicating with the mixture of biodiesel and petrodiesel. The method further includes generating a resonant current at a resonant frequency utilizing the circuit in response to the oscillatory signal. The method further includes determining a concentration value indicating the concentration of the biodiesel in the mixture based on an amplitude of the resonant current and/or the resonant frequency, utilizing a microprocessor. The method further includes storing the concentration value in a memory device, utilizing the microprocessor.

    Abstract translation: 提供了确定生物柴油和石油柴油混合物中生物柴油浓度的系统和方法。 在一个示例性实施例中，一种方法包括在电感 - 电容电阻电路处接收振荡信号。 电路具有与生物柴油和石油柴油的混合物流体连通的感测元件。 该方法还包括响应于振荡信号利用电路产生谐振频率的谐振电流。 该方法还包括利用微处理器，基于谐振电流的振幅和/或谐振频率来确定指示混合物中生物柴油浓度的浓度值。 该方法还包括利用微处理器将浓度值存储在存储器件中。

    Programmable multiplexed active biologic array
    37.
    发明申请
    Programmable multiplexed active biologic array 有权
    可编程多路复用活性生物阵列

    公开(公告)号：US20040038420A1

    公开(公告)日：2004-02-26

    申请号：US10224750

    申请日：2002-08-20

    Applicant: NANOGEN, INC.

    Inventor： Richard Gelbart ,  Don L. Powrie ,  Paul David Swanson

    IPC: G01N027/00

    CPC classification number: G01N27/3276 ,  B01J2219/00605 ,  B01J2219/00653 ,  B01J2219/00698 ,  B01J2219/00704 ,  G01N27/028 ,  Y10T436/11

    Abstract: The present invention is directed to devices and methods for carrying out and/or monitoring biological reactions in response to electrical stimuli. A programmable multiplexed active biologic array includes an array of electrodes coupled to sample-and-hold circuits. The programmable multiplexed active biologic array includes a digital interface that allows external control of the array using an external processor. The circuit may monitor, digitally control, and deliver electrical stimuli to the electrodes individually or in selected groups.

    Abstract translation: 本发明涉及用于响应于电刺激进行和/或监测生物反应的装置和方法。 可编程复用的有源生物阵列包括耦合到采样和保持电路的电极阵列。 可编程复用的有源生物阵列包括允许使用外部处理器对阵列进行外部控制的数字接口。 该电路可以单独或选定的组监测，数字控制和传递对电极的电刺激。

    Autonulling AC bridge using differential and integration feedback
    38.
    发明授权
    Autonulling AC bridge using differential and integration feedback 失效
    使用差分和积分反馈自动调节交流电桥

    公开(公告)号：US5264798A

    公开(公告)日：1993-11-23

    申请号：US783904

    申请日：1991-10-29

    Applicant: Paul P. Bey, Jr. ,  Thomas L. Fare

    Inventor： Paul P. Bey, Jr. ,  Thomas L. Fare

    IPC: G01N27/02 ,  G01R17/06

    CPC classification number: G01R17/06 ,  G01N27/028

    Abstract: A self-contained autonulling bridge circuit based on phase-sensitive deteon of an impedance to be measured is described. The system utilizes a feedback structure to control a variable impedance in order to establish the null of the bridge. The system utilizes a voltage-variable impedance having both resistance and capacitance and provides the phase sensitive relationship in the control means in order to provide highly accurate measurement of an unknown test impedance. The ability to measure small changes in impedance provides particularly useful application to the area of biological sensor impedance measurement or electrochemical impedance measurement using silicon-based devices.

    Abstract translation: 描述了一种基于待测量阻抗的相敏检测的独立自适应桥接电路。 该系统利用反馈结构来控制可变阻抗，以建立桥的零点。 该系统利用具有电阻和电容两者的电压可变阻抗，并在控制装置中提供相位敏感关系，以便提供未知测试阻抗的高精度测量。 测量阻抗变化小的能力为使用硅基器件的生物传感器阻抗测量或电化学阻抗测量领域提供了特别有用的应用。

    Electrical bridge circuit for measuring a parameter of an electrical element
    40.
    发明授权
    Electrical bridge circuit for measuring a parameter of an electrical element 失效
    用于测量电气元件参数的电桥电路

    公开(公告)号：US3624495A

    公开(公告)日：1971-11-30

    申请号：US3624495D

    申请日：1969-12-24

    Applicant: RICHARD FREUND

    Inventor： FREUND RICHARD

    IPC: G01N27/02 ,  G01R17/10

    CPC classification number: G01R17/105 ,  G01N27/028

    Abstract: An electrical bridge circuit for measuring a given parameter of an electrical element such as a resistor, inductor, or capacitor comprises a pair of power-supply input terminals and a first pair of bridge arms connected across the input terminals to establish a point of fixed intermediate potential. The bridge circuit further includes a second pair of bridge arms connected in series across the terminals, the first arm initially effectively including only terminals for connection to the electrical element to be measured. A control circuit is connected between the point of intermediate potential and the junction of the first and second arms. The bridge circuit includes a series of reference electrical elements having parameters of the type to be measured, for example resistance, of values progressing in approximately a geometric series, and the second bridge arm initially includes a plurality of such reference elements having a total parametric value greater than the largest value to be measured. The circuit further includes means responsive to an electrical output of the control circuit of only a given polarity for sequentially and selectively including in the second bridge arm reference elements of alternate parametric values in the series, commencing with the reference element of highest parametric value, and for selectively including one or more of the other reference elements in the first bridge arm, thereby progressively to reduce the arithmetic difference between the total parametric values of the electrical elements in the two bridge arms. The means for changing the circuit relationships of the reference elements as described includes a plurality of switching relays individually connected to switch the reference elements in or out of one or the other of the bridge arms, a selector switch effective to energize the relays in sequence, a plurality of holding relays for individually maintaining their energization and the energization of the switching relays, and a second selector switch effective to energize the holding relays in sequence.

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