JPH077019B2 - Current sensor - Google Patents
Current sensorInfo
- Publication number
- JPH077019B2 JPH077019B2 JP62174375A JP17437587A JPH077019B2 JP H077019 B2 JPH077019 B2 JP H077019B2 JP 62174375 A JP62174375 A JP 62174375A JP 17437587 A JP17437587 A JP 17437587A JP H077019 B2 JPH077019 B2 JP H077019B2
- Authority
- JP
- Japan
- Prior art keywords
- current
- magnetic
- wire
- current sensor
- amorphous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 5
- 238000009987 spinning Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 229920000914 Metallic fiber Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910020598 Co Fe Inorganic materials 0.000 description 2
- 229910002519 Co-Fe Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，磁性体としてアモルフアスワイヤを用いた特
殊な織物構造を有する交番電流又はパルス電流を検出す
るための電流センサに関するものである。TECHNICAL FIELD The present invention relates to a current sensor for detecting an alternating current or a pulse current having a special woven structure using an amorphous wire as a magnetic body.
（従来の技術） 従来，交番電流又はパルス電流を検出するための検出素
子としては分流器又は変流器が使用されている（「セン
サ活用事例集」情報調査会,1984年５月発行）。(Prior Art) Conventionally, a shunt or a current transformer has been used as a detection element for detecting an alternating current or a pulse current ("Sensor Utilization Cases" Information Study Group, published in May 1984).
また，アモルフアス磁性材料を用いた電流センサとして
は，例えば，特開昭61−79168号公報には，主回路の周
囲に板状のアモルフアス磁性材料よりなる環状磁路を設
けて，主回路の交番電流値に応じたパルス信号をアモル
フアス磁性材料の両端から検出する電流センサが提案さ
れている。Further, as a current sensor using an amorphous magnetic material, for example, in Japanese Patent Laid-Open No. 61-79168, an annular magnetic path made of a plate-shaped amorphous magnetic material is provided around the main circuit, and an alternating main circuit is provided. A current sensor has been proposed that detects a pulse signal corresponding to a current value from both ends of an amorphous magnetic material.
（発明が解決しようとする問題点） しかしながら，上記のような分流器は，これに電流を流
したときに発生するオームの法則に基づく電圧降下を利
用するものであり，本質的に検出信号回路を主回路から
電気的に絶縁して使用することができない。(Problems to be Solved by the Invention) However, the shunt resistor as described above utilizes the voltage drop based on Ohm's law that occurs when a current is passed through the shunt resistor, and is essentially a detection signal circuit. Cannot be electrically isolated from the main circuit.
また，変流器は，一時巻線の電流との電磁結合によって
生じる二次巻線の電圧によって一次電流を検出するもの
であり，従って，検出信号回路を主回路から電気的に絶
縁して使用することはできるが，磁路としての鉄心及び
一次，二次の巻線を必要とするため，寸法及び重量が大
きくなる欠点がある。Further, the current transformer detects the primary current by the voltage of the secondary winding generated by the electromagnetic coupling with the current of the temporary winding. Therefore, the detection signal circuit is used by being electrically isolated from the main circuit. However, since it requires an iron core as a magnetic path and primary and secondary windings, it has the drawback of increasing size and weight.
さらに，特開昭61−79168号公報に記載されている電流
センサは，使用される板状のアモルフアス磁性材料に可
撓性がないため，次のような欠点がある。すなわち，こ
れは，上記の分流器又は変流器にも共通することである
が，電流センサ，特に鉄心を含む部分に可撓性がないた
め，電気装置の組立てあるいは配線の際に検出すべき電
気装置の構成要素の一部又は配線上の要素の一部として
設置され，永久的に固定されて使用されることであり，
既設装置あるいは配線の電流値を，ある時間帯だけ測定
した後取り外したり，測定個所を順次変更して同じセン
サで測定したりすることは不可能である。Further, the current sensor described in JP-A-61-79168 has the following drawbacks because the plate-shaped amorphous magnetic material used is not flexible. That is, this is also common to the above-mentioned shunt or current transformer, but it should be detected during the assembly or wiring of the electric device because the current sensor, especially the part including the iron core, is not flexible. Installed as part of a component of an electrical device or part of an element on wiring, used permanently fixed,
It is not possible to measure the current value of an existing device or wiring for a certain period of time and then remove it, or change measurement points sequentially and measure with the same sensor.
（問題点を解決するための手段） 本発明者らは，上記のごとき欠点を改良すべく鋭意研究
を行った結果，磁性アモルフアスワイヤと絶縁被覆銅線
とからなる特殊な織物構造を有するバンドを構成するこ
とにより，極めて可撓性に富んだ電流センサの得られる
ことを見出し，本発明に到達したものである。(Means for Solving the Problems) As a result of intensive studies to improve the above drawbacks, the present inventors have found that a band having a special woven structure composed of a magnetic amorphous wire and an insulating coated copper wire. It was found that an extremely flexible current sensor can be obtained by configuring the above, and the present invention has been achieved.
すなわち，本発明は，磁性アモルフアスワイヤと非磁性
非金属繊維とが交互に配列された経糸群と，電気的に連
続した１本のループを形成する絶縁被覆銅線の緯糸とか
らなる平織組織を有する扁平バンドからなり，交番電流
又はパルス電流からなる被検出電流を流す主回路の導体
の周囲に設置して，該絶縁被覆銅線の両端から被検出電
流の波高値に応じた波形の出力信号を得るようにした電
流センサを要旨とするものである。That is, the present invention is a plain weave design consisting of a warp group in which magnetic amorphous wires and non-magnetic non-metal fibers are alternately arranged, and an insulation-coated copper wire weft that forms one electrically continuous loop. Is installed around the conductor of the main circuit that carries the detected current consisting of alternating current or pulsed current, which is composed of a flat band having the following, and outputs a waveform corresponding to the peak value of the detected current from both ends of the insulation-coated copper wire. The gist of the present invention is a current sensor adapted to obtain a signal.
本発明に用いられる磁性アモルフアスワイヤは微小磁界
変化により大きな磁束変化を生じることが有利なことか
ら，高透磁率材料が好ましく，また，偏平バンドを作成
する際の織張力，応力，歪による磁気特性の劣化を防止
するために磁歪が零近傍の材料が好ましい。さらに高周
波電流あるいはパルス電流の正確な値を測定する場合
は，高周波においても透磁率の低下しない磁性アモルフ
アスワイヤが有利であり，アモルフアスワイヤの線径は
細い方が好ましいが，線径が細い場合は織物形態の保持
が困難であるので，アモルフアスワイヤを複数本集束し
たものを１本の経糸として使用するのが好ましい。この
アモルフアスワイヤの組成としては，例えば,Co系の合
金組成，特にCo−Fe−Si−Ｂ系の合金組成があげられ,S
iが５〜20原子％で,Bが５〜20原子％で，残部がCo−Fe
で,Co−Fe原子％比が99/1から90/10の範囲内にあるもの
が好ましい。また,5原子％以内で,Mn,Nb,Cr等の元素を
添加してもよい。特に最適な合金組成の具体例としてCo
68.15Fe4.35Si12.5B15,Co69.375Fe4.625Si13.5B12.5,Co
67.2Fe4.6Nb0.7Si12.5B15,Co63.1Fe4.0Cr5.4Si12.5B15
があげられる。Since the magnetic amorphous wire used in the present invention is advantageous in that a large magnetic flux change is advantageously generated by a minute magnetic field change, a high magnetic permeability material is preferable, and magnetic properties due to weaving tension, stress, and strain when forming a flat band are preferable. A material having a magnetostriction near zero is preferable in order to prevent deterioration of characteristics. Furthermore, when measuring accurate values of high-frequency currents or pulse currents, magnetic amorphous wires that do not reduce magnetic permeability even at high frequencies are advantageous, and it is preferable that the amorphous wire has a small wire diameter, but the wire diameter is small. In this case, since it is difficult to maintain the woven form, it is preferable to use a bundle of a plurality of amorphous wires as one warp. Examples of the composition of the amorphous wire include a Co-based alloy composition, particularly a Co-Fe-Si-B-based alloy composition.
i is 5 to 20 atomic%, B is 5 to 20 atomic%, and the balance is Co-Fe.
It is preferable that the Co-Fe atomic% ratio is within the range of 99/1 to 90/10. Further, elements such as Mn, Nb, and Cr may be added within 5 atomic%. As an example of a particularly optimum alloy composition, Co
68.15 Fe 4.35 Si 12.5 B 15, Co 69.375 Fe 4.625 Si 13.5 B 12.5, Co
67.2 Fe 4.6 Nb 0.7 Si 12.5 B 15, Co 63.1 Fe 4.0 Cr 5.4 Si 12.5 B 15
Can be given.
本発明に用いられる磁性アモルフアスワイヤを製造する
には，例えば，前記合金組成を用い，製造法として特に
好ましい回転液中紡糸法により，急冷固化させればよ
い。回転液中紡糸法としては特開昭56−165016号公報や
特開昭57−79052号公報に記載されているように，回転
ドラムの中に水を入れ，遠心力でドラム内壁に水膜を形
成させ，この水膜中に溶融した合金を約80〜200μｍの
径の紡糸ノズルより噴出してワイヤを得る方法があげら
れる。In order to produce the magnetic amorphous wire used in the present invention, for example, the alloy composition described above may be used, and the alloy may be rapidly cooled and solidified by a spinning submerged spinning method which is particularly preferable as the production method. As the spinning liquid spinning method, as described in JP-A-56-165016 and JP-A-57-79052, water is put into a rotating drum and a water film is formed on the inner wall of the drum by centrifugal force. A method of forming a wire and ejecting the melted alloy in the water film from a spinning nozzle having a diameter of about 80 to 200 μm to obtain a wire can be mentioned.
本発明に用いられる非磁性非金属繊維は，後記の理由に
より電磁誘導を生じないことが重要であるため，非磁性
及び非金属であることが必要であるが，織物形態を保つ
ものであればどんな繊維でもよい。一般的には有機繊維
が使用可能であり，織物組織を安定にするには，その線
径がもう一方の経糸として使用する磁性アモルフアスワ
イヤ（集束体も含めて）の線径とほぼ同一のモノフイラ
メントを使用するのが好ましい。そのような具体例とし
てポリエチレンテレフタレート，ポリアミド．ポリエチ
レン，ポリ塩化ビニル等のモノフイラメントがあげられ
る。The non-magnetic non-metallic fiber used in the present invention is required to be non-magnetic and non-metallic because it is important that it does not cause electromagnetic induction for the reasons described below, but if it is a woven form Any fiber will do. Generally, organic fibers can be used, and in order to stabilize the woven structure, the diameter of the wire is almost the same as the diameter of the magnetic amorphous wire (including the bundle) used as the other warp. Preference is given to using monofilaments. Specific examples thereof include polyethylene terephthalate and polyamide. Examples include monofilaments such as polyethylene and polyvinyl chloride.
本発明に用いられる絶縁被覆銅線は，一般にエナメル線
あるいはマグネットワイヤと称される銅線であり，その
具体例としてホルマール線，ポリウレタン線，ポリエス
テル線，ポリエステルイミド線，ポリアミドイミド線等
があげられる。The insulating coated copper wire used in the present invention is a copper wire generally called an enamel wire or a magnet wire, and specific examples thereof include formal wire, polyurethane wire, polyester wire, polyesterimide wire, polyamideimide wire and the like. .
以下，図面によって本発明を説明する。第１図は，本発
明の電流センサを構成する扁平バンドの一実施態様を示
す斜視図である。第１図において１は磁性アモルフアス
ワイヤを,2は非磁性非金属繊維を示しており，交互に配
列された経糸群を構成している。３は絶縁被覆銅線から
なる緯糸であり，織物の耳部で折返されており，両端部
AA′間で電気的に連続した１本のループを形成してい
る。The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a flat band constituting the current sensor of the present invention. In FIG. 1, 1 is a magnetic amorphous wire and 2 is a non-magnetic non-metallic fiber, which constitutes a warp group arranged alternately. Numeral 3 is a weft composed of an insulation-coated copper wire, which is folded back at the selvages of the woven fabric.
An electrically continuous loop is formed between AA '.
このときの織物の目は平織であり，磁性アモルフアスワ
イヤ１と非磁性非金属繊維２とを経糸として交互に使用
する理由は，磁性アモルフアスワイヤに対する緯糸の絶
縁被覆銅線の巻付け方向を全ての磁性アモルフアスワイ
ヤについて同一方向にするためである。すなわち，円周
磁界は経糸全てに平行磁界として作用するから，もし経
糸の全てをアモルフアスワイヤとすると，アモルフアス
ワイヤに対する銅線の巻付け方向が順次逆巻の連続した
ものとなり，アモルフアスワイヤの磁束変化に基づく誘
導起電力が隣合う２本のワイヤで相殺され電流センサと
して機能しない。The mesh of the woven fabric at this time is a plain weave, and the reason for alternately using the magnetic amorphous wire 1 and the non-magnetic non-metallic fiber 2 as the warp is that the winding direction of the insulating coated copper wire of the weft on the magnetic amorphous wire is This is because all magnetic amorphous wires have the same direction. That is, since the circumferential magnetic field acts as a parallel magnetic field on all the warp yarns, if all the warp yarns are made of amorphous wire, the winding direction of the copper wire around the amorphous wire will be continuous and reverse winding will occur. The induced electromotive force based on the change in magnetic flux is canceled by the two adjacent wires and does not function as a current sensor.
本発明にいう経糸又は緯糸とは，被検出電流から生じる
円周磁界の方向を基に定義しており，円周磁界の方向と
平行となる磁性アモルフアスワイヤと非磁性非金属繊維
を経糸と称し，円周磁界の方向と垂直となる絶縁被覆銅
線を緯糸と称している。The warp or weft as used in the present invention is defined based on the direction of the circumferential magnetic field generated from the detected current, and the magnetic amorphous wire and the non-magnetic non-metal fiber that are parallel to the direction of the circumferential magnetic field are the warp. Insulation-coated copper wires that are perpendicular to the direction of the circumferential magnetic field are called wefts.
また，このときの経糸本数及び経糸と緯糸の織密度は，
被測定主回路の大きさ，場所，所望するバンドの寸法及
び所望する検出信号出力値のレベルによって決定され，
経糸本数及び緯糸密度を大きくすることにより，検出信
号出力レベルは増加する。At this time, the number of warp yarns and the weaving density of the warp yarns and the weft yarns are
Determined by the size and location of the main circuit under test, the desired band size, and the desired detection signal output level,
The detection signal output level increases by increasing the number of warp threads and the weft density.
次に，第２図及び第３図は，本発明の電流センサの一実
施態様を示す斜視図である。第２図及び第３図において
４は第１図で示した扁平バンドを示しており，第２図は
扁平バンドの端部を一部重ねてリング状にした例を，第
３図は端部の間隔を５で示す磁性体で連結して閉磁路の
リング状にした例を，それぞれ示している。Next, FIG. 2 and FIG. 3 are perspective views showing an embodiment of the current sensor of the present invention. In FIGS. 2 and 3, 4 shows the flat band shown in FIG. 1. FIG. 2 shows an example in which the end portions of the flat band are partially overlapped to form a ring shape, and FIG. 3 shows the end portions. An example is shown in which the magnetic field shown in FIG.
さらに第４図は本発明の電流センサの使用例を示す斜視
図であり,6を示される主回路の導体（一般には７で示さ
れる絶縁被膜を有している）の周囲に４で示される扁平
バンドを巻付け,AA′の端末から出力信号を得るように
している。Further, FIG. 4 is a perspective view showing an example of use of the current sensor of the present invention, which is shown by 4 around the conductor of the main circuit shown by 6 (generally having an insulating coating shown by 7). A flat band is wrapped around and an output signal is obtained from the AA 'terminal.
この扁平バンドは，そのまま主回路の導体の周囲に巻付
けて使用することもできるが，各種表面の保護のため，
表裏にフイルムを貼付けたり，あるいは樹脂でコーテイ
ングして使用してもよい。This flat band can be used by winding it around the conductor of the main circuit as it is, but to protect various surfaces,
Films may be attached to the front and back, or coated with resin before use.
（作用） 本発明の電流センサは，交番電流又はパルス電流からな
る被検出電流がその周囲に電流値に比例して発生する円
周磁界の変化を磁性アモルフアスワイヤの磁束変化に転
化し，このアモルフアスワイヤの磁束変化をそのワイヤ
の周囲を取り巻く絶縁被覆銅線の誘導起電力として取り
出すものである。(Operation) In the current sensor of the present invention, the change of the circumferential magnetic field generated around the detected current consisting of the alternating current or the pulse current in proportion to the current value is converted into the magnetic flux change of the magnetic amorphous wire. The magnetic flux change of the amorphous wire is taken out as an induced electromotive force of the insulation-coated copper wire surrounding the wire.
（実施例） 以下実施例をあげて本発明をさらに具体的に説明する。(Example) Hereinafter, the present invention will be described in more detail with reference to examples.
実施例１ 原子組成比がCo68.15Fe4.35Si12.5B15,であり，線経が
0.12mmであるアモルフアスワイヤ10本と，線径0.1mmの
ナイロン６モノフイラメント９本を交互に平行な経糸と
し，線径0.1mmのPEW（ポリエステル被覆銅線）を緯糸と
し，緯糸密度180/25mmでリボン平織成型し，長さ100mm,
幅8.5mmの扁平バンドを作製した。Example 1 The atomic composition ratio is Co 68.15 Fe 4.35 Si 12.5 B 15, and the line length is
10 Amorphous wires of 0.12 mm and 9 nylon 6 monofilaments with a diameter of 0.1 mm are alternately used as parallel warps, PEW (polyester coated copper wire) with a diameter of 0.1 mm is used as a weft, and a weft density of 180 / Ribbon plain weave molding with 25mm, length 100mm,
A flat band having a width of 8.5 mm was produced.
この扁平バンドを被検出電流として60Hzの正弦波交流が
流れる導体の周囲に第２図に示すごとくリング状に巻付
けた。このときの端部の重なり部分は5mmであった。This flat band was wound in a ring shape as shown in FIG. 2 around a conductor in which a sinusoidal alternating current of 60 Hz flows as a current to be detected. The overlapping portion of the ends at this time was 5 mm.
被検出電流の電流波高値と扁平バンドリングの銅線末端
AA′からの出力電圧の結果を表１に示す。Current peak of detected current and end of flat bundling copper wire
The results of the output voltage from AA 'are shown in Table 1.
（発明の効果） 本発明の電流センサは，特殊な織物構造を有する扁平バ
ンドを被検出電流が流れている導体の周囲に１周以上リ
ング状に巻付けることによって構成されているため，主
回路から絶縁して使用することが可能であるとともに特
別な二次巻線を施す必要がなく，小型で軽量にすること
ができる。 (Effects of the Invention) Since the current sensor of the present invention is configured by winding a flat band having a special woven structure around the conductor in which the current to be detected flows in a ring shape for one or more rounds, the main circuit It is possible to use it in an insulated manner, and there is no need to provide a special secondary winding, so it can be made compact and lightweight.
特に本発明における扁平バンドは可撓性を有しているか
ら，主回路の場所にとらわれず，測定すべき個所に簡単
に取付けることができ，さらに電流をセンシングした後
不要になったセンサは巻付けを解除して新たに場所を変
更して再度取付けることも可能であり，極めて操作性の
優れた電流センサである。In particular, since the flat band according to the present invention has flexibility, it can be easily attached to the place to be measured without being restricted by the place of the main circuit, and the sensor which is no longer needed after sensing the current is wound. It is possible to remove the attachment, change the location, and attach it again. This is a current sensor with excellent operability.
第１図は，本発明の電流センサを構成する扁平バンドの
一実施態様を示す斜視図，第２図及び第３図は，本発明
の電流センサの一実施態様を示す斜視図，第４図は本発
明の電流センサの使用例を示す斜視図である。 １……磁性アモルフアスワイヤ,2……非磁性非金属繊
維,3……絶縁被覆銅線,4……扁平バンド,5……磁性体,6
……主回路の導体,7……主回路導体の絶縁被覆FIG. 1 is a perspective view showing an embodiment of a flat band constituting the current sensor of the present invention, FIGS. 2 and 3 are perspective views showing an embodiment of the current sensor of the present invention, and FIG. FIG. 6 is a perspective view showing an example of use of the current sensor of the present invention. 1 …… Magnetic amorphous wire, 2 …… Nonmagnetic nonmetallic fiber, 3 …… Insulation coated copper wire, 4 …… Flat band, 5 …… Magnetic material, 6
...... Main circuit conductor, 7 ...... Main circuit conductor insulation coating
Claims (1)
維とが交互に配列された経糸群と，電気的に連続した１
本のループを形成する絶縁被覆銅線の緯糸とからなる平
織組織を有する扁平バンドからなり，交番電流又はパル
ス電流からなる被検出電流を流す主回路の導体の周囲に
設置して，該絶縁被覆銅線の両端から被検出電流の波高
値に応じた波形の出力信号を得るようにした電流セン
サ。1. A warp group in which magnetic amorphous wires and non-magnetic non-metal fibers are alternately arranged and electrically continuous 1
A flat band having a plain weave structure consisting of insulation-coated copper wire wefts that form a loop, and is installed around the conductor of the main circuit that carries the detected current consisting of alternating current or pulse current A current sensor that obtains an output signal with a waveform corresponding to the peak value of the current to be detected from both ends of the copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174375A JPH077019B2 (en) | 1987-07-13 | 1987-07-13 | Current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62174375A JPH077019B2 (en) | 1987-07-13 | 1987-07-13 | Current sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6418069A JPS6418069A (en) | 1989-01-20 |
| JPH077019B2 true JPH077019B2 (en) | 1995-01-30 |
Family
ID=15977513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62174375A Expired - Lifetime JPH077019B2 (en) | 1987-07-13 | 1987-07-13 | Current sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077019B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166080A (en) * | 1991-04-29 | 1992-11-24 | Luxtron Corporation | Techniques for measuring the thickness of a film formed on a substrate |
| CN103116061A (en) * | 2013-01-29 | 2013-05-22 | 郑州精科电力自动化有限公司 | Novel open nonmagnetic core current sensor with compensating structure |
-
1987
- 1987-07-13 JP JP62174375A patent/JPH077019B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6418069A (en) | 1989-01-20 |
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