Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – For fault location
Reexamination Certificate
2007-07-10
2007-07-10
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
For fault location
C324S713000
Reexamination Certificate
active
11385247
ABSTRACT:
There is provided a current measuring apparatus for measuring current-under-measurement flowing between a first measuring terminal and a second measuring terminal, having a plurality of primary coils whose one end is electrically connected with the first measuring terminal and another end thereof is electrically connected with the second measuring terminal, a secondary coil that generates voltage representing the current-under-measurement corresponding to the current-under-measurement flowing through the plurality of primary coils and coaxial cables, each corresponding to the plurality of primary coils and having a signal line that connects one end of the primary coil with the first measuring terminal and a shield, and the coaxial cable has the signal line, an insulating layer for coating the signal line, first one of the shield having a tape-like conductor wound around the insulating layer and second one of the shield made of a conductor provided around the first shield.
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International Search Report issued for International application No. PCT/JP2004/013753 mailed on Dec. 21, 2004 and English translation thereof, 4 pages.
Furukawa Yasuo
Satou Mitsunori
Advantest Corporation
Dole Timothy J.
Hirakawa Hewtech Corporation
Hirshfeld Andrew H.
Osha & Liang LLP
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