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    • 10. 发明申请
    • Method and Apparatus for Measuring Current
    • 测量电流的方法和装置
    • US20070290695A1
    • 2007-12-20
    • US11569550
    • 2005-05-25
    • James Mahon
    • James Mahon
    • G01R19/00G01R15/14
    • G01R15/181
    • Current testing/measuring apparatus 10 comprises a flexible member 12 having a first end 14 and a second end 16. In use, the flexible member 12 is arranged to locate around a conductor 11 carrying a current to be measured. In particular, the current measuring apparatus 10 comprises a Rogowski coil. The ends of the flexible member 12 are coupled together in use but a gap is created between the ends. This distance can generate errors in the current measurement and the present invention provides compensation means 28 in the form of a compensation windings. The compensation windings comprise a planar spiral conductor provided on a printed circuit board to compensate for the separation distance between the first end and the second end.
    • 当前的测试/测量装置10包括具有第一端14和第二端16的柔性构件12.在使用中,柔性构件12布置成围绕承载待测电流的导体11定位。 特别地,电流测量装置10包括罗戈夫斯基线圈。 柔性构件12的端部在使用中联接在一起,但在端部之间产生间隙。 该距离可以在电流测量中产生误差,并且本发明提供补偿绕组形式的补偿装置28。 补偿绕组包括设置在印刷电路板上的平面螺旋导体,以补偿第一端和第二端之间的间隔距离。