JP2019184270A - 電流検出装置および電流測定装置 - Google Patents
電流検出装置および電流測定装置 Download PDFInfo
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- JP2019184270A JP2019184270A JP2018071395A JP2018071395A JP2019184270A JP 2019184270 A JP2019184270 A JP 2019184270A JP 2018071395 A JP2018071395 A JP 2018071395A JP 2018071395 A JP2018071395 A JP 2018071395A JP 2019184270 A JP2019184270 A JP 2019184270A
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- 238000005259 measurement Methods 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- 230000010354 integration Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000004804 winding Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 238000004088 simulation Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0007—Frequency selective voltage or current level measuring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/28—Arrangements for measuring currents or voltages or for indicating presence or sign thereof adapted for measuring in circuits having distributed constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
2 電流センサ
3,103,203,303,503 インピーダンス変換回路
4 接続ケーブル
5,105 抵抗回路
6,106 積分回路
7 測定回路
4a 一端部
50 電線
I 電流
Iv 電流値
S1 検出信号
Claims (5)
- ロゴスキーコイルを用いて構成されて測定対象に流れる電流を検出して当該電流の電流値に対応する検出信号を出力する電流センサと、分布定数線路で構成されて前記検出信号を伝送する伝送線路と、前記電流センサおよび前記伝送線路の間に設けられて当該電流センサの特性インピーダンスと等しいかまたはほぼ等しい入力インピーダンスを有するインピーダンス変換回路と、前記伝送線路を介して入力した前記検出信号を積分して前記電流の電流値を示す出力信号を出力する積分回路とを備えた電流検出装置であって、
前記伝送線路の特性インピーダンスと等しいかまたはほぼ等しい抵抗値を有し当該伝送線路と前記積分回路との間に直列に接続された抵抗回路を備えている電流検出装置。 - 前記インピーダンス変換回路は、前記伝送線路の特性インピーダンスと等しいかまたはほぼ等しい出力インピーダンスを有している請求項1記載の電流検出装置。
- 前記インピーダンス変換回路は、前記電流センサの特性インピーダンスと等しいかまたはほぼ等しい抵抗値の抵抗で構成されて当該電流センサおよび前記伝送線路の間に直列に接続されている請求項1記載の電流検出装置。
- 前記積分回路は、反転アクティブ積分回路で構成されている請求項1から3のいずれかに記載の電流検出装置。
- 請求項1から4のいずれかに記載の電流検出装置と、当該電流検出装置から出力された前記出力信号に基づいて前記電流値を測定する測定回路を備えている電流測定装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018071395A JP2019184270A (ja) | 2018-04-03 | 2018-04-03 | 電流検出装置および電流測定装置 |
DE102019203941.3A DE102019203941A1 (de) | 2018-04-03 | 2019-03-22 | Stromdetektor und Strommesser |
US16/371,683 US10942201B2 (en) | 2018-04-03 | 2019-04-01 | Current detector and current meter |
CN202310369165.5A CN116148520A (zh) | 2018-04-03 | 2019-04-02 | 电流检测装置和电流测定装置 |
CN201910260129.9A CN110346630A (zh) | 2018-04-03 | 2019-04-02 | 电流检测装置和电流测定装置 |
JP2022202849A JP2023024575A (ja) | 2018-04-03 | 2022-12-20 | 電流検出装置および電流測定装置 |
Applications Claiming Priority (1)
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JP2018071395A JP2019184270A (ja) | 2018-04-03 | 2018-04-03 | 電流検出装置および電流測定装置 |
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JP2022202849A Division JP2023024575A (ja) | 2018-04-03 | 2022-12-20 | 電流検出装置および電流測定装置 |
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JP2022202849A Pending JP2023024575A (ja) | 2018-04-03 | 2022-12-20 | 電流検出装置および電流測定装置 |
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US (1) | US10942201B2 (ja) |
JP (2) | JP2019184270A (ja) |
CN (2) | CN110346630A (ja) |
DE (1) | DE102019203941A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113917214A (zh) * | 2021-09-22 | 2022-01-11 | 中国船舶工业系统工程研究院 | 一种自积分罗氏线圈盘状积分电阻及其制造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112505388B (zh) * | 2020-12-02 | 2022-05-10 | 国网宁夏电力有限公司电力科学研究院 | 电流测量设备和电流测量系统 |
CN117650767B (zh) * | 2024-01-29 | 2024-03-29 | 深圳市鼎阳科技股份有限公司 | 一种阻抗变换电路、示波器前端电路及示波器 |
Citations (6)
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JPS62179125A (ja) * | 1986-01-31 | 1987-08-06 | Nippon Denshi Zairyo Kk | インタ−フエイス回路付プロ−ブ・カ−ド |
US6614218B1 (en) * | 1998-04-22 | 2003-09-02 | Power Electronic Measurements Limited | Current measuring device |
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JP2013076569A (ja) * | 2011-09-29 | 2013-04-25 | Kyushu Institute Of Technology | 半導体回路の電流測定装置 |
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CN102445588B (zh) * | 2011-11-23 | 2015-08-19 | 中国人民解放军海军工程大学 | 基于pcb型罗氏线圈的短时缓变大电流测量装置 |
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JP2018071395A (ja) | 2016-10-27 | 2018-05-10 | トヨタ自動車株式会社 | 駆動力制御装置 |
JP2019027970A (ja) | 2017-08-01 | 2019-02-21 | 日置電機株式会社 | 電流センサおよび測定装置 |
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2018
- 2018-04-03 JP JP2018071395A patent/JP2019184270A/ja active Pending
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2019
- 2019-03-22 DE DE102019203941.3A patent/DE102019203941A1/de active Pending
- 2019-04-01 US US16/371,683 patent/US10942201B2/en active Active
- 2019-04-02 CN CN201910260129.9A patent/CN110346630A/zh active Pending
- 2019-04-02 CN CN202310369165.5A patent/CN116148520A/zh active Pending
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2022
- 2022-12-20 JP JP2022202849A patent/JP2023024575A/ja active Pending
Patent Citations (6)
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JPS62179125A (ja) * | 1986-01-31 | 1987-08-06 | Nippon Denshi Zairyo Kk | インタ−フエイス回路付プロ−ブ・カ−ド |
US6614218B1 (en) * | 1998-04-22 | 2003-09-02 | Power Electronic Measurements Limited | Current measuring device |
CN2682427Y (zh) * | 2003-12-18 | 2005-03-02 | 湖南湘能许继高科技股份有限公司 | 基于行波时差的输电网故障定位装置 |
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JP2013076569A (ja) * | 2011-09-29 | 2013-04-25 | Kyushu Institute Of Technology | 半導体回路の電流測定装置 |
JP2016114585A (ja) * | 2014-12-18 | 2016-06-23 | 日置電機株式会社 | 電流センサおよび測定装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113917214A (zh) * | 2021-09-22 | 2022-01-11 | 中国船舶工业系统工程研究院 | 一种自积分罗氏线圈盘状积分电阻及其制造方法 |
CN113917214B (zh) * | 2021-09-22 | 2023-10-27 | 中国船舶工业系统工程研究院 | 一种自积分罗氏线圈盘状积分电阻及其制造方法 |
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US10942201B2 (en) | 2021-03-09 |
JP2023024575A (ja) | 2023-02-16 |
CN116148520A (zh) | 2023-05-23 |
CN110346630A (zh) | 2019-10-18 |
DE102019203941A1 (de) | 2019-10-24 |
US20190302152A1 (en) | 2019-10-03 |
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