Title:
CURRENT SENSOR AND VOLTMETER
Document Type and Number:
Japanese Patent JP2019152558
Kind Code:
A
Abstract:
To provide a current sensor and a voltmeter which can measure an accurate current in a wide current measurement range at low cost even when the current sensor is arranged in a small space.SOLUTION: A current sensor 1 includes: a current bar 5 in which a current to be detected flows; a magnetism collecting core 2 penetrating the current bar 5, the magnetism collecting core having a void 3; and a substrate 4 having a magnetism detecting element in the void 3, and the current sensor detects a current flowing in the current bar 5 on the basis of the result of magnetism detection by the magnetism detection element. The current bar 5 is formed by sequentially connecting three partial current bars 6, 7, and 8, and the partial current bars 6, 7, and 8 surround the void 3 from three directions.SELECTED DRAWING: Figure 1
Inventors:
KURIHARA SUSUMU
YAMAUCHI YOSHINORI
KUDO TAKAHIRO
HARAYAMA SHIGEAKI
YAMAUCHI YOSHINORI
KUDO TAKAHIRO
HARAYAMA SHIGEAKI
Application Number:
JP2018038551A
Publication Date:
September 12, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
FUJI ELECTRIC METER CO LTD
International Classes:
G01R15/20; G01R11/02
Domestic Patent References:
| JP2001066328A | 2001-03-16 | |||
| JP2010048755A | 2010-03-04 | |||
| JP2000338141A | 2000-12-08 | |||
| JP2004077184A | 2004-03-11 | |||
| JPH06130087A | 1994-05-13 | |||
| JPH0536376U | 1993-05-18 | |||
| JP2013250257A | 2013-12-12 |
Attorney, Agent or Firm:
Sakai International Patent Office