CURRENT CONVERTER

PROBLEM TO BE SOLVED: To provide a compact current converter capable of accurately measuring a minute current.SOLUTION: A current converter includes: an annular case body with hollow structure, having a through hole into which a current line to be measured is inserted and formed with a high permeabi...

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Bibliographic Details
Main Authors KAWASE MASAHIRO, SATO TAKUMI, MATSUOKA TAKAHIRO
Format Patent
LanguageEnglish
Japanese
Published 18.10.2018
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To provide a compact current converter capable of accurately measuring a minute current.SOLUTION: A current converter includes: an annular case body with hollow structure, having a through hole into which a current line to be measured is inserted and formed with a high permeability material; and a magnetic detector arranged inside the case body. The magnetic detector is an orthogonal flux gate type sensor having a detection coil wound around the magnetic detector, and provided with an annular path that allows a magnetic flux containing no magnetic material on a concentric circle of the through hole to path through inside the case body, and arranged on the magnetic detector on the path.SELECTED DRAWING: Figure 2 【課題】微小電流を精度よく計測できる小型の電流変換器を提供する。【解決手段】被計測電流線を通す貫通穴を持ち、高透磁率材料で形成された環状で中空構造のケース体と、該ケース体内部に配置された磁気検出器を備える電流変換器であって、前記磁気検出器は、磁性体と、該磁性体の周囲に巻回された検知コイルを備える直交フラックスゲート型センサであり、前記ケース体内部において、前記貫通穴の同心円上に磁性体を含まない磁束を通過させる環状の経路が設けられ、前記経路上に前記磁気検出器を配置したことを特徴とする電流変換器。【選択図】図２
Bibliography:Application Number: JP20170059895