Title:
センサおよび電流測定装置
Document Type and Number:
Japanese Patent JP6732563
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the accuracy of detection.SOLUTION: A sensor of the present invention comprises: core members 21a, 21b composed in such a way that, while spaces Ca, Cb are created between tip parts 21at, 21bt and base parts 21ae, 21be in a state of a conductor to be detected being enclosed, the tip parts 21at, 21bt and base parts 21ae, 21be face each other; magnetism detection elements 22a, 22b disposed in the tip part 21at and the base part 21ae, for detecting an amount to be detected that occurs in the core members 21a, 21b when an electric current flows in the conductor; and spacers 24a, 24b formed with a nonmagnetic material and respectively arranged between the tip part 21at and the magnetism detection element 22a and between the base part 21ae and the magnetism detection element 22b, for locating the magnetism detection elements 22a, 22b at center of each of the spaces Ca, Cb so that the distance to the opposed tip parts 21at, 21bt and the distance to the base parts 21ae, 21be are mutually equal.SELECTED DRAWING: Figure 3
Inventors:
Masakazu Ikeda
Application Number:
JP2016127112A
Publication Date:
July 29, 2020
Filing Date:
June 28, 2016
Export Citation:
Assignee:
Hioki Electric Co., Ltd.
International Classes:
G01R1/22; G01R15/20
Domestic Patent References:
| JP2015045519A | ||||
| JP63157669U | ||||
| JP2003043073A | ||||
| JP2011017574A | ||||
| JP2059682A | ||||
| JP63157667U | ||||
| JP2008039517A | ||||
| JP2010071822A |
Foreign References:
| US20030227285 | ||||
| WO2015190155A1 |
Attorney, Agent or Firm:
Shinji Sakai