Title:
CURRENT SENSOR
Document Type and Number:
Japanese Patent JP3655700
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an easily manufactured current sensor capable of surely detecting the flowing of a very small current to a signal line regarding a current sensor for detecting electric conductivity to a signal line by winding an exciting primary coil and a receiving secondary coil on a supersaturated magnetic material ring core.
SOLUTION: An exciting primary coil 5, a receiving secondary coil 6 and a supersaturated magnetic material ring core 3 are all made of thin films, the primary and secondary coils 5 and 6 are helically wound on the ring core 3, a signal line 7 is used as a conductor and wound around the ring core 3 in a locally concentrated manner and thereby, the ring core 3 is locally saturated by a current flowing to the signal line 7, signal transmission to the receiving secondary coil 2 is reduced and signal line 7 winding work is facilitated.
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Inventors:
Yasuharu Yamada
Tatsuya Kumonaka
Masahiro Yamaguchi
Tatsuya Kumonaka
Masahiro Yamaguchi
Application Number:
JP13826996A
Publication Date:
June 02, 2005
Filing Date:
May 31, 1996
Export Citation:
Assignee:
SHIMADZU CORPORATION
Masahiro Yamaguchi
Masahiro Yamaguchi
International Classes:
G01R15/18; (IPC1-7): G01R15/18
Domestic Patent References:
| JP6201733A | ||||
| JP1252171A | ||||
| JP4071177U | ||||
| JP7191118A |
Attorney, Agent or Firm:
Yoshiro Kurauchi