Voltmeter suitable for medium/high-voltage installations, with a surface
wave device
    7.
    发明授权
    Voltmeter suitable for medium/high-voltage installations, with a surface wave device 失效
    电压表适用于中高压安装,具有表面波装置

    公开(公告)号:US6104181A

    公开(公告)日:2000-08-15

    申请号:US43242

    申请日:1998-06-11

    IPC分类号: G01R15/26 G01R19/00

    CPC分类号: G01R15/26

    摘要: Voltmeter for medium/high-voltage devices, which has a surface-wave device (21) as the voltmeter element proper. This surface-wave device is incorporated into an impedance voltage divider (5, 6), of a type known in principle, in such a way that both electrical high-voltage insulation is ensured and power supply problems of the voltmeter element which is at high potential are ruled out.

    摘要翻译: PCT No.PCT / DE96 / 01637 Sec。 371日期:1998年6月11日 102(e)1998年6月11日PCT PCT 1996年9月3日PCT公布。 第WO97 / 09624号公报 日期1997年3月13日中型/高压装置用电压表,其具有作为电压表元件的表面波装置(21)。 该表面波装置原理上并入已知的类型的阻抗分压器(5,6)中,使得两个电高压绝缘都得到确保,并且电压表元件的电源问题处于高电平 排除了潜力。

    Apparatus for monitoring the vacuum of a vacuum switch
    8.
    发明授权
    Apparatus for monitoring the vacuum of a vacuum switch 失效
    用于监测真空开关真空度的装置

    公开(公告)号:US5739419A

    公开(公告)日:1998-04-14

    申请号:US694939

    申请日:1996-08-09

    CPC分类号: H01H33/668 H01H2033/6686

    摘要: An apparatus for monitoring the vacuum of a vacuum switch having at least one vacuum switch tube with a switch chamber and switch contacts is provided. The apparatus has a remotely interrogatable pressure measurement sensor in the form of a piezocrystal or surface acoustic (SAW) device arranged in the interior of the vacuum switch tube and a remote interrogation device placed external to the vacuum switch for monitoring the vacuum via the sensor.

    摘要翻译: 提供一种用于监测具有至少一个具有开关室和开关触点的真空开关管的真空开关的真空的装置。 该装置具有布置在真空开关管内部的压电晶体或表面声学(SAW)装置形式的远程可询问压力测量传感器,以及放置在真空开关外部的远程询问装置,用于经由传感器监测真空。

    Identification and/or sensor system
    10.
    发明授权
    Identification and/or sensor system 失效
    识别和/或传感器系统

    公开(公告)号:US5691698A

    公开(公告)日:1997-11-25

    申请号:US422452

    申请日:1995-04-17

    摘要: An identification and/or sensor system includes an identification and/or sensor configuration having resonators for determining at least one parameter to be interrogated. The resonators have a quality being good enough to effect a storage of energy in the resonators. A transmitting and receiving apparatus transmits interrogation signals by radio to the identification and/or sensor configuration and receives and evaluates reply signals transmitted back from the identification and/or sensor configuration. The transmitting and receiving apparatus is a broadband device.

    摘要翻译: 识别和/或传感器系统包括具有用于确定要被询问的至少一个参数的谐振器的识别和/或传感器配置。 谐振器具有足够好的质量来实现谐振器中的能量存储。 发送和接收装置通过无线电发送询问信号到识别和/或传感器配置,并接收并评估从识别和/或传感器配置传回的应答信号。 发送和接收设备是宽带设备。