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    Electrical resistor for measuring preferably high-frequency alternating currents
    1.
    发明授权
    Electrical resistor for measuring preferably high-frequency alternating currents 有权
    用于测量高频交流电的电阻器

    公开(公告)号：US06876291B2

    公开(公告)日：2005-04-05

    申请号：US10239819

    申请日：2002-01-04

    Applicant: Wolfram Teppan

    Inventor： Wolfram Teppan

    IPC: G01R15/14 ,  G01R1/20 ,  H01C3/02 ,  H01C13/00 ,  H01C10/00

    CPC classification number: G01R1/203

    Abstract: The present invention relates to an electrical resistor (1), in particular for measuring alternating currents of high frequency, comprising connectors (2, 3) for feeding the current to be measured and connectors (4, 5) for tapping the voltage to be measured and having a layered structure including at least one resistive layer (10), a return conducting layer (11) and any possibly provided insulating layers (7, 12, 21, 22, 24). To obtain a measuring resistance having a particularly good frequency response, a high long-term stability and an efficient cooling and which, moreover, is inexpensive to produce, it is provided for the resistive layer (10) together with the return conducting layer (11) and the possible insulating layers (7, 12, 21, 22, 24) to be part of a multilayered printed circuit board and to comprise a plurality of conductive tracks (14) extending from a central region of the resistive layer (10) towards outside. Preferably, the return conducting layer (11) comprises conductive tracks (15) of the same geometrical shape as the conductive tracks (14) of the resistive layer (10).

    Abstract translation: 本发明涉及一种电阻器（1），特别是用于测量高频交流电流，包括用于馈送待测电流的连接器（2,3）和用于分接待测电压的连接器（4,5） 并且具有包括至少一个电阻层（10），返回导电层（11）和任何可能设置的绝缘层（7,12,21,22,24）的分层结构。 为了获得具有特别好的频率响应，高长期稳定性和有效冷却的测量电阻，并且此外，制造成本便宜，为了将电阻层（10）与返回导电层（11）一起提供 ）和可能的绝缘层（7,12,21,22,24）成为多层印刷电路板的一部分并且包括从电阻层（10）的中心区域延伸的多个导电轨道（14）朝向 外。 优选地，返回导电层（11）包括与电阻层（10）的导电轨道（14）相同的几何形状的导电轨道（15）。

    Extra-low voltage heating system
    2.
    发明授权
    Extra-low voltage heating system 失效
    超低压供电系统

    公开(公告)号：US5814792A

    公开(公告)日：1998-09-29

    申请号：US670413

    申请日：1996-06-26

    Applicant: Theodore Wildi

    Inventor： Theodore Wildi

    IPC: H05B3/34 ,  H05B3/44 ,  H01C3/02 ,  H04B3/28 ,  H05B1/00

    CPC classification number: H05B3/34 ,  H05B2203/005 ,  H05B2203/011 ,  H05B2203/014 ,  H05B2203/017 ,  H05B2203/026

    Abstract: An extra-low-voltage heating system that produces a reduced magnetic field and which uses three insulated copper wires, or equivalents, as heating elements. Its low operating temperature, robustness and safety enable the system to be installed, for example, in floors and walls for the general heating of buildings, and in outdoor pavements, for snow-melting purposes, etc. The single-phase feeder busbars are configured to reduce the magnetic field around the feeder. A monitoring network continually checks the integrity of the heating system.

    Abstract translation: 一种超低压加热系统，其产生减小的磁场，并且使用三根绝缘铜线或等同物作为加热元件。 其低工作温度，坚固性和安全性使系统能够安装在例如楼面和墙壁上，用于建筑物的一般加热，以及在室外路面中，用于融雪目的等。单相馈线母线被配置 以减少馈线周围的磁场。 监控网络不断检查供暖系统的完整性。

    Resistance standard
    3.
    发明授权
    Resistance standard 失效
    电阻标准

    公开(公告)号：US3719914A

    公开(公告)日：1973-03-06

    申请号：US3719914D

    申请日：1971-12-30

    Applicant: BIDDLE CO J

    Inventor： SCHARLE C

    IPC: H01C3/02

    CPC classification number: H01C3/02

    Abstract: A zig-zag pattern is formed from a sheet of resistance material, such as manganin or a nickel chrome alloy, preferably by providing parallel slots alternately extending from opposite edges of the sheet and evenly spaced from one another and the patterned sheet is folded back upon itself and separated by sheets of insulating material so that the patterned areas of the opposed folded portions are superimposed upon one another and current flowing through the resistance pattern will be flowing in opposite directions on opposite sides of the insulating material, thus cancelling out inductive effects and providing a resistance standard with an essentially pure resistance characteristic.

    Abstract translation: 锯齿形图案由诸如锰铁或镍铬合金的电阻材料片形成，优选地通过提供从片材的相对边缘交替延伸并且彼此均匀间隔开的平行狭缝，并且将图案片材折回到 本身并且被绝缘材料片分离，使得相对的折叠部分的图案区域彼此叠置，并且流过电阻图案的电流将在绝缘材料的相对侧上沿相反方向流动，从而消除电感效应， 提供具有基本上纯电阻特性的电阻标准。

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