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    ELECTRIC FIELD SENSOR
    1.
    发明申请
    ELECTRIC FIELD SENSOR 有权
    电场传感器

    公开(公告)号：US20160327597A1

    公开(公告)日：2016-11-10

    申请号：US14704535

    申请日：2015-05-05

    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

    Inventor： Simon J. Ghionea ,  David M. Hull

    IPC: G01R29/12 ,  G01R29/24

    CPC classification number: G01R29/12

    Abstract: An electric field sensor having at least a first and second electrically conductive generally planar electrodes that are spaced apart from each other. A circuit is electrically connected to the electrodes which is configured to generate an output signal proportional to a time derivative of a varying electric field surrounding the electrodes. Optionally, three sets of spaced apart electrodes which are arranged perpendicularly relative to each other are used for three-dimensional measurements of the electric field.

    Abstract translation: 一种具有彼此间隔开的至少第一和第二导电的大体上平面的电极的电场传感器。 电路电连接到电极，其被配置为产生与围绕电极的变化电场的时间导数成比例的输出信号。 可选地，三组垂直相对布置的间隔开的电极用于电场的三维测量。

    Method and Apparatus for Power Quality and Synchrophasor Monitoring on Power Lines
    2.
    发明申请
    Method and Apparatus for Power Quality and Synchrophasor Monitoring on Power Lines 审中-公开
    电力线质量和同步监测方法与装置

    公开(公告)号：US20140343878A1

    公开(公告)日：2014-11-20

    申请号：US14274259

    申请日：2014-05-09

    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

    Inventor： Thorkell Gudmundsson ,  David M. Hull ,  James W. Waite ,  Ross N. Adelman

    IPC: G01R25/00 ,  G01R19/25

    CPC classification number: G01R19/2513 ,  G01R25/00 ,  G01R29/0814 ,  Y02E60/728 ,  Y04S10/265

    Abstract: A system and method for estimating the magnitude and phase of magnetic and electrical currents in a power line comprising at least one processor operating to create a model of the power line and derive expected complex magnetic and electric-field values; at least one memory; at least one sensor positioned proximate to the at least one power line for sensing and providing measurements of the magnetic and electric fields of the at least one power line; the at least one processor operating to compute a set of complex magnetic and electric field values based upon the measurements provided by the at least one sensor and to estimate parameters related to the complex voltage and/or current of the at least one power line based upon the measured field values and the set of expected complex electric current and voltage values derived from a model of at least one power line.

    Abstract translation: 一种用于估计电力线中的磁电流和电流的幅度和相位的系统和方法，包括至少一个处理器，用于产生电力线的模型并导出预期的复磁场和电场值; 至少一个记忆; 位于所述至少一个电力线附近的至少一个传感器，用于感测和提供所述至少一个电力线的磁场和电场的测量; 所述至少一个处理器用于基于由所述至少一个传感器提供的测量来计算一组复磁场和电场值，并且基于所述至少一个电力线的复合电压和/或电流来估计与 测量的场值和从至少一个电力线的模型得出的预期复合电流和电压值的集合。

    Electric field sensor
    4.
    发明授权
    Electric field sensor 有权

    公开(公告)号：US09880120B2

    公开(公告)日：2018-01-30

    申请号：US14337671

    申请日：2014-07-22

    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

    Inventor： Simon J. Ghionea ,  David M. Hull ,  Gabriel L. Smith ,  Jeffrey S. Pulskamp ,  Sarah S. Bedair

    IPC: G01N27/26 ,  G01R29/12

    CPC classification number: G01N27/26 ,  G01R29/12

    Abstract: According to embodiments, an electric field sensor having a sensor electrode is constructed of an electrically conductive material and having one or more outwardly protruding pillars. A screen electrode overlies the sensor electrode and has one or more openings which register with the one or more pillars on the sensor electrode. At least one piezoelectric actuator is connected to the screen electrode so that, when excited by a voltage signal, the piezoelectric actuator modulates the screen electrode toward and away from the sensor electrode at the frequency of the periodic voltage signal. An output circuit configured to detect a voltage, a current output, or both, between the sensor electrode and the screen electrode which is proportional in magnitude to the strength of the electric field.

    ELECTRIC FIELD SENSOR
    6.
    发明申请
    ELECTRIC FIELD SENSOR 有权
    电场传感器

    公开(公告)号：US20160025666A1

    公开(公告)日：2016-01-28

    申请号：US14337671

    申请日：2014-07-22

    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

    Inventor： Simon J. Ghionea ,  David M. Hull ,  Gabriel L. Smith ,  Jeffrey S. Pulskamp ,  Sarah S. Bedair

    IPC: G01N27/26

    CPC classification number: G01N27/26 ,  G01R29/12

    Abstract: According to embodiments, an electric field sensor having a sensor electrode is constructed of an electrically conductive material and having one or more outwardly protruding pillars. A screen electrode overlies the sensor electrode and has one or more openings which register with the one or more pillars on the sensor electrode. At least one piezoelectric actuator is connected to the screen electrode so that, when excited by a voltage signal, the piezoelectric actuator modulates the screen electrode toward and away from the sensor electrode at the frequency of the periodic voltage signal. An output circuit configured to detect a voltage, a current output, or both, between the sensor electrode and the screen electrode which is proportional in magnitude to the strength of the electric field.

    Abstract translation: 根据实施例，具有传感器电极的电场传感器由导电材料构成并具有一个或多个向外突出的支柱。 屏幕电极覆盖在传感器电极上并且具有与传感器电极上的一个或多个柱对准的一个或多个开口。 至少一个压电致动器连接到屏幕电极，使得当由电压信号激发时，压电致动器以周期性电压信号的频率将屏幕电极调节到传感器电极和远离传感器电极。 输出电路，被配置为检测传感器电极和屏幕电极之间的电压，电流输出或两者，其大小与电场的强度成正比。

    Electric field sensor
    8.
    发明授权
    Electric field sensor 有权

    公开(公告)号：US09829524B2

    公开(公告)日：2017-11-28

    申请号：US14704535

    申请日：2015-05-05

    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

    Inventor： Simon J. Ghionea ,  David M. Hull

    IPC: G01R29/12 ,  G01R29/24

    CPC classification number: G01R29/12

    Abstract: An electric field sensor having at least a first and second electrically conductive generally planar electrodes that are spaced apart from each other. A circuit is electrically connected to the electrodes which is configured to generate an output signal proportional to a time derivative of a varying electric field surrounding the electrodes. Optionally, three sets of spaced apart electrodes which are arranged perpendicularly relative to each other are used for three-dimensional measurements of the electric field.

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