Method and apparatus for measuring degradation of insulation of electrical power system devices
    1.
    发明授权
    Method and apparatus for measuring degradation of insulation of electrical power system devices 有权
    测量电力系统设备绝缘劣化的方法和装置

    公开(公告)号:US07990156B1

    公开(公告)日:2011-08-02

    申请号:US12658320

    申请日:2010-02-08

    IPC分类号: H01H31/12 G01R31/06

    摘要: A method for measuring degradation of electrical power system device insulation utilizes a conductive composite sensor. A selected polymeric matrix of the conductive composite provides a sensor resistance response that correlates to degradation of the insulation. The sensor may be embedded in the windings, core or stator of the electrical power system device and wired to a connector on the electrical power system device for interrogation by an ohmmeter.

    摘要翻译: 用于测量电力系统装置绝缘的劣化的方法使用导电复合传感器。 导电复合材料的选定聚合物基质提供了与绝缘体的降解相关的传感器电阻响应。 传感器可以嵌入在电力系统装置的绕组,铁芯或定子中并且被连接到电力系统装置上的连接器上,以通过欧姆表进行询问。

    Health monitoring method for composite materials
    2.
    发明授权
    Health monitoring method for composite materials 有权
    复合材料健康监测方法

    公开(公告)号:US07924031B2

    公开(公告)日:2011-04-12

    申请号:US11510875

    申请日:2006-08-23

    IPC分类号: G01R27/08

    CPC分类号: G01N27/041

    摘要: An in-situ method for monitoring the health of a composite component utilizes a condition sensor made of electrically conductive particles dispersed in a polymeric matrix. The sensor is bonded or otherwise formed on the matrix surface of the composite material. Age-related shrinkage of the sensor matrix results in a decrease in the resistivity of the condition sensor. Correlation of measured sensor resistivity with data from aged specimens allows indirect determination of mechanical damage and remaining age of the composite component.

    摘要翻译: 用于监测复合部件健康的现场方法利用由分散在聚合物基质中的导电颗粒制成的状态传感器。 传感器被粘结或以其它方式形成在复合材料的基体表面上。 传感器矩阵的年龄相关收缩导致状态传感器的电阻率降低。 测量的传感器电阻率与老化试样数据的相关性允许间接测定机械损伤和复合材料部件的剩余寿命。

    Electrical condition monitoring method for polymers
    3.
    发明授权
    Electrical condition monitoring method for polymers 失效
    聚合物电气状态监测方法

    公开(公告)号:US07663381B2

    公开(公告)日:2010-02-16

    申请号:US12082161

    申请日:2008-04-09

    IPC分类号: G01N27/20

    摘要: An electrical condition monitoring method utilizes measurement of electrical resistivity of a conductive composite degradation sensor to monitor environmentally induced degradation of a polymeric product such as insulated wire and cable. The degradation sensor comprises a polymeric matrix and conductive filler. The polymeric matrix may be a polymer used in the product, or it may be a polymer with degradation properties similar to that of a polymer used in the product. The method comprises a means for communicating the resistivity to a measuring instrument and a means to correlate resistivity of the degradation sensor with environmentally induced degradation of the product.

    摘要翻译: 电气状况监测方法利用导电复合材料降解传感器的电阻率的测量来监测聚合物产品(例如绝缘电线和电缆)的环境诱导的降解。 降解传感器包括聚合物基质和导电填料。 聚合物基质可以是在产物中使用的聚合物,或者它可以是具有与产物中使用的聚合物相同的降解性质的聚合物。 该方法包括用于将电阻率传递到测量仪器的装置以及将降解传感器的电阻率与产品的环境诱导的降解相关联的手段。

    Fault sensing wire and alarm apparatus
    4.
    发明授权
    Fault sensing wire and alarm apparatus 失效
    故障检测线和报警器

    公开(公告)号:US06801117B2

    公开(公告)日:2004-10-05

    申请号:US10306773

    申请日:2002-11-26

    IPC分类号: H01H3714

    CPC分类号: H02H5/042 H02H1/0015 H02H5/10

    摘要: A fault sensing electrical wire (411) utilized one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedance of the sensor strips of the fault sensing wire and provides a control signal (405) to initiate an alarm or protective action based on the severity of the condition. The control unit (402) may monitor a number of fault sensing sires simultaneously or in sequence. The apparatus may be used to sense an electrical arc occurring in the insulation of the wire.

    摘要翻译: 故障感测电线(411)使用一个或多个传感器条(407),当导线受到过热条件或电线的机械损坏时,其提供阻抗变化。 控制单元(402)测量故障感测线的传感器带的阻抗,并且提供控制信号(405)以基于条件的严重性启动警报或保护动作。 控制单元(402)可以同时或按顺序监视​​多个故障检测系统。 该装置可用于感测在电线绝缘中发生的电弧。

    Paper web and process for making the same
    5.
    发明授权
    Paper web and process for making the same 失效
    纸网和制作相同的过程

    公开(公告)号:US6030497A

    公开(公告)日:2000-02-29

    申请号:US276128

    申请日:1999-03-25

    摘要: A multi-ply paper web comprises a base ply of a post-manufactured sheet such as reused old newsprint or reused office waste. An upper and/or lower ply bonded to the base ply covers any printing or contamination of the base ply, thus allowing the resulting web to be reprinted or used for writing or packaging grades. The base ply is not repulped, reducing water and energy usage in the manufacturing process. The upper and lower plies may be wet formed or dry formed. Dry-formed upper and/or lower plies result in a paper product utilizing little or no water in the manufacturing process, and no aqueous effluent. The post-manufactured base ply provides the strength ply. Multiple layers in the base ply or, alternatively, a contrast-reducing process on printed surfaces of the base ply, reduce show through of the final web.

    摘要翻译: 多层纸幅包括后制片材的基层,例如重新使用的旧新闻纸或重复使用的办公室废物。 结合到基层的上层和/或下层覆盖基层的任何印刷或污染,从而允许将所得到的网重新印刷或用于书写或包装等级。 底层没有重新排列,减少了制造过程中的水和能源消耗。 上层和下层可以是湿成型或干燥形成的。 干成型的上层和/或下层导致在制造过程中使用很少或没有水的纸制品,并且没有水性流出物。 后制底层提供强度层。 或者基底层的印刷表面上的对比度降低过程可以减少底层中的多层,从而减少最终网的显示。

    Electrical safety device with conductive polymer sensor
    6.
    发明授权
    Electrical safety device with conductive polymer sensor 失效
    带导电聚合物传感器的电气安全装置

    公开(公告)号:US5841617A

    公开(公告)日:1998-11-24

    申请号:US826780

    申请日:1997-04-07

    IPC分类号: H02H5/04 H02H7/22

    CPC分类号: H02H5/043 H02H7/228

    摘要: An electrical safety device comprises a sensor strip disposed in the insulation of an electrical power cord or other electrical apparatus. The sensor strip is made of a conductive polymer with a positive temperature coefficient of resistivity which increases with temperature. The sensor strip forms a series connected loop connected to an impedance measuring circuit. A relay interrupts current to the conductors of the cord when the impedance of the sensor strip increases due to an overtemperature condition. The sensor strip is positioned between the conductors of the cord and the outside surface of the cord. The position of the sensor strip allows the strip to act as a mechanical damage sensor, opening the series connected loop before an energized conductor is exposed.

    摘要翻译: 电气安全装置包括设置在电力线或其他电气设备的绝缘体中的传感器条。 传感器带由具有正温度系数随温度升高的导电聚合物制成。 传感器条形成连接到阻抗测量电路的串联连接的环路。 当传感器条的阻抗由于过热条件而增加时,继电器会中断电流到电线的导线。 传感器带位于电线的导体和电线的外表面之间。 传感器条的位置允许带材作为机械损伤传感器,在通电导体暴露之前打开串联连接的环路。

    Electrical sensor for monitoring degradation of products from environmental stressors
    7.
    发明授权
    Electrical sensor for monitoring degradation of products from environmental stressors 有权
    用于监测环境压力源产品退化的电气传感器

    公开(公告)号:US08217669B1

    公开(公告)日:2012-07-10

    申请号:US12590081

    申请日:2009-11-02

    IPC分类号: G01R27/08 G01N27/00

    摘要: An environmental degradation sensor for environmentally sensitive products such as food, pharmaceuticals or cosmetic products provides the degraded state and estimated remaining life of the product. The sensor is made of a polymeric matrix and conductive filler. A control agent, selected to adjust a reaction rate of the sensor to environmental conditions, allows correlation of an electrical property of the sensor to a degraded state of the product. The sensor may be integrated with a passive RFID to provide product identification and degradation status wirelessly via reader. The sensor improves product safety, reduces cost of premature product disposal and, combined with RFIDs, improves the security of products through combined product degradation monitoring and tracking.

    摘要翻译: 用于环境敏感产品如食品,药品或化妆品的环境降解传感器提供产品的降解状态和估计的剩余寿命。 传感器由聚合物基体和导电填料制成。 选择用于将传感器的反应速率调整为环境条件的控制剂允许传感器的电性能与产品的降解状态相关。 传感器可以与无源RFID集成,通过读取器无线地提供产品识别和劣化状态。 该传感器可提高产品安全性,降低产品过早处理的成本,并与RFID结合,通过组合产品退化监测和跟踪提高产品的安全性。

    Electrical condition monitoring method for polymers
    8.
    发明申请
    Electrical condition monitoring method for polymers 失效
    聚合物电气状态监测方法

    公开(公告)号:US20080307909A1

    公开(公告)日:2008-12-18

    申请号:US12082161

    申请日:2008-04-09

    IPC分类号: G01N33/44

    摘要: An electrical condition monitoring method utilizes measurement of electrical resistivity of a conductive composite degradation sensor to monitor environmentally induced degradation of a polymeric product such as insulated wire and cable. The degradation sensor comprises a polymeric matrix and conductive filler. The polymeric matrix may be a polymer used in the product, or it may be a polymer with degradation properties similar to that of a polymer used in the product. The method comprises a means for communicating the resistivity to a measuring instrument and a means to correlate resistivity of the degradation sensor with environmentally induced degradation of the product.

    摘要翻译: 电气状况监测方法利用导电复合材料降解传感器的电阻率的测量来监测聚合物产品(例如绝缘电线和电缆)的环境诱导的降解。 降解传感器包括聚合物基质和导电填料。 聚合物基质可以是在产物中使用的聚合物,或者它可以是具有与产物中使用的聚合物相同的降解性质的聚合物。 该方法包括用于将电阻率传递到测量仪器的装置以及将降解传感器的电阻率与产品的环境诱导的降解相关联的手段。

    Fault sensing wire and alarm apparatus
    9.
    发明授权
    Fault sensing wire and alarm apparatus 失效
    故障检测线和报警器

    公开(公告)号:US06512444B1

    公开(公告)日:2003-01-28

    申请号:US09555823

    申请日:2000-06-05

    IPC分类号: H01H3714

    CPC分类号: H02H5/042 H02H1/0015 H02H5/10

    摘要: A fault sensing electrical wire (411) utilizes one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedance of the sensor strips of the fault sensing wire and provides a control signal (405) to initiate an alarm or protective action based on the severity of the condition. The control unit (402) may monitor a number of fault sensing wires simultaneously or in sequence. The apparatus may be used to sense an electrical arc occurring in the insulation of the wire.

    摘要翻译: 故障感测电线(411)利用一个或多个传感器条(407),当导线受到过热条件或电线的机械损坏时,其提供阻抗变化。 控制单元(402)测量故障感测线的传感器带的阻抗,并且提供控制信号(405)以基于条件的严重性启动警报或保护动作。 控制单元(402)可以同时或按顺序监视​​多个故障检测线。 该装置可用于感测在电线绝缘中发生的电弧。

    Electrical safety device
    10.
    发明授权
    Electrical safety device 失效
    电气安全装置

    公开(公告)号:US5541803A

    公开(公告)日:1996-07-30

    申请号:US206966

    申请日:1994-03-07

    摘要: An electrical safety device is disclosed which utilizes a sensor conductor configured in a continuous loop and disposed in an electrical component so as to sense overtemperature or mechanical damage over a length or wide area of the component. The sensor may be simple insulated or non insulated copper wire. A low voltage potential is maintained across the sensor conductor. The sensor circuitry includes ambient temperature compensation.

    摘要翻译: 公开了一种电气安全装置,其使用以连续环路配置并设置在电气部件中的传感器导体,以便感测部件的长度或宽度区域上的过热或机械损伤。 传感器可以是简单的绝缘或非绝缘铜线。 在传感器导体上保持低电压电位。 传感器电路包括环境温度补偿。