-
公开(公告)号：US07304872B1
公开(公告)日：2007-12-04
申请号：US11162807
申请日：2005-09-23
IPC分类号： H02M7/06
CPC分类号： H02M5/06 , H02M7/06 , Y10T307/944
摘要： A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.
摘要翻译： 公开了一种具有电池备用的模块化的低重量阻抗放电电源，其可连接到高压AC电源并以较低的电压提供电力。 该设计可以在宽范围的输入电压以及宽范围的输出电压和输出功率范围内进行扩展。
-
2.发明授权Temperature compensated and self-calibrated current sensor using reference magnetic field 失效使用参考磁场的温度补偿和自校准电流传感器公开(公告)号：US07279884B2
公开(公告)日：2007-10-09
申请号：US11556932
申请日：2006-11-06
IPC分类号： G01F23/00
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205 , G01R19/0092
摘要： A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference magnetic field generated within the current sensor housing is detected by the magnetic field sensors and is used to correct variations in the output signal due to temperature variations and aging.
摘要翻译： 描述了一种基于位于载流导体周围的多个磁场传感器来提供电流传感器的温度补偿和自校准的方法。 在电流传感器外壳内产生的参考磁场由磁场传感器检测，用于校正由于温度变化和老化引起的输出信号的变化。
-
公开(公告)号：US07164263B2
公开(公告)日：2007-01-16
申请号：US10905509
申请日：2005-01-07
IPC分类号： G01F23/00
CPC分类号： G01R15/207 , G01R15/202 , G01R15/205 , G01R19/0092
摘要： A current sensor is described that uses a plurality of magnetic field sensors positioned around a current carrying conductor. The sensor can be hinged to allow clamping to a conductor. The current sensor provides high measurement accuracy for both DC and AC currents, and is substantially immune to the effects of temperature, conductor position, nearby current carrying conductors and aging.
摘要翻译： 描述了使用位于载流导体周围的多个磁场传感器的电流传感器。 传感器可以铰接以允许夹紧到导体。 电流传感器为直流和交流电流提供高测量精度，并且基本上免受温度，导体位置，附近载流导体和老化的影响。
-
公开(公告)号：US07129693B2
公开(公告)日：2006-10-31
申请号：US11160953
申请日：2005-07-17
CPC分类号： G01R15/06
摘要： A voltage sensor is described that consists of a plurality of identical series-connected sections, where each section is comprised of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. The voltage sensor can be scaled to various voltage levels by varying the number of series-connected sections.
摘要翻译： 描述了由多个相同的串联连接部分组成的电压传感器，其中每个部分由阻抗元件的布置构成。 该传感器被优化以提供基本上免受电压，温度变化或老化变化的输出比。 电压传感器可以通过改变串联连接部分的数量来缩放到各种电压电平。
-
公开(公告)号：US07845848B2
公开(公告)日：2010-12-07
申请号：US12501512
申请日：2009-07-13
CPC分类号： G01B17/04 , G01K11/24 , G01K2217/00 , G01N29/07 , G01N29/348 , G01N29/4454 , G01N2291/02854 , G01N2291/042 , G01N2291/0421
摘要： A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the conductor in a buried, undersea or submerged electrical power cable.
摘要翻译： 描述了用于电缆和导体的温度计和伸长计。 使用沿着导体的一个或多个声学信号的行进时间来确定沿着导体的温度和导体的长度。 选择声频以最小化传播声能的时间色散。 该技术可用于测量埋地，海底或潜水电力电缆中导体的温度。
-
公开(公告)号：US20090279582A1
公开(公告)日：2009-11-12
申请号：US12501512
申请日：2009-07-13
CPC分类号： G01B17/04 , G01K11/24 , G01K2217/00 , G01N29/07 , G01N29/348 , G01N29/4454 , G01N2291/02854 , G01N2291/042 , G01N2291/0421
摘要： A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the conductor in a buried, undersea or submerged electrical power cable.
摘要翻译： 描述了用于电缆和导体的温度计和伸长计。 使用沿着导体的一个或多个声学信号的行进时间来确定沿着导体的温度和导体的长度。 选择声频以最小化传播声能的时间色散。 该技术可用于测量埋地，海底或潜水电力电缆中导体的温度。
-
公开(公告)号：US07027285B2
公开(公告)日：2006-04-11
申请号：US10905352
申请日：2004-12-29
IPC分类号： H01G4/00
摘要： A technique of increasing the corona inception voltage (CIV), and thereby increasing the operating voltage, of film/foil capacitors is described. Intentional venting of the capacitor encapsulation improves the corona inception voltage by allowing internal voids to equilibrate with the ambient environment.
摘要翻译： 描述了增加膜/箔电容器的电晕起始电压（CIV）并由此增加工作电压的技术。 通过允许内部空隙与周围环境平衡，电容器封装的故意排气改善了电晕起因电压。
-
公开(公告)号：US07845847B2
公开(公告)日：2010-12-07
申请号：US12501510
申请日：2009-07-13
CPC分类号： G01B17/04 , G01K11/24 , G01K2217/00 , G01N29/07 , G01N29/348 , G01N29/4454 , G01N2291/02854 , G01N2291/042 , G01N2291/0421
摘要： A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the windings in a transformer or other electrical apparatus.
摘要翻译： 描述了用于电缆和导体的温度计和伸长计。 使用沿着导体的一个或多个声学信号的行进时间来确定沿着导体的温度和导体的长度。 选择声频以最小化传播声能的时间色散。 该技术可用于测量变压器或其他电气设备中绕组的温度。
-
公开(公告)号：US20090279581A1
公开(公告)日：2009-11-12
申请号：US12501510
申请日：2009-07-13
CPC分类号： G01B17/04 , G01K11/24 , G01K2217/00 , G01N29/07 , G01N29/348 , G01N29/4454 , G01N2291/02854 , G01N2291/042 , G01N2291/0421
摘要： A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the windings in a transformer or other electrical apparatus.
摘要翻译： 描述了用于电缆和导体的温度计和伸长计。 使用沿着导体的一个或多个声学信号的行进时间来确定沿着导体的温度和导体的长度。 选择声频以最小化传播声能的时间色散。 该技术可用于测量变压器或其他电气设备中绕组的温度。
-
公开(公告)号：US07575371B1
公开(公告)日：2009-08-18
申请号：US11164131
申请日：2005-11-10
CPC分类号： G01B17/04 , G01K11/24 , G01K2217/00 , G01N29/07 , G01N29/348 , G01N29/4454 , G01N2291/02854 , G01N2291/042 , G01N2291/0421
摘要： A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature and sag of an overhead power line, the temperature of the windings in a transformer, or the temperature of the central conductor in a coaxial power cable.
摘要翻译： 描述了用于电缆和导体的温度计和伸长计。 使用沿着导体的一个或多个声学信号的行进时间来确定沿着导体的温度和导体的长度。 选择声频以最小化传播声能的时间色散。 该技术可用于测量架空电力线的温度和下垂，变压器中绕组的温度或同轴电力电缆中的中心导体的温度。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.017 秒)
