JPH01176905A - Method for measuring insulating metal wire group interval - Google Patents
Method for measuring insulating metal wire group intervalInfo
- Publication number
- JPH01176905A JPH01176905A JP33380587A JP33380587A JPH01176905A JP H01176905 A JPH01176905 A JP H01176905A JP 33380587 A JP33380587 A JP 33380587A JP 33380587 A JP33380587 A JP 33380587A JP H01176905 A JPH01176905 A JP H01176905A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic flux
- gap
- pointed ends
- pulse signal
- magnetic
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 6
- 230000005291 magnetic effect Effects 0.000 claims abstract description 59
- 230000004907 flux Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000005284 excitation Effects 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 abstract description 11
- 238000004132 cross linking Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 20
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はフラットケーブルの心線導体のように絶縁導体
が平帯状に並置された金属線群の金属線間隔を測定する
方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for measuring the distance between metal wires of a metal wire group in which insulated conductors are arranged side by side in a flat strip shape, such as the core conductor of a flat cable. .
［従来の技術］
多数の絶縁心線導体を平行に並べて平帯状に形成したフ
ラットケーブルは０Ａｔｌｌ器等の普及にともなって需
要が増大しているが、そのケーブル端末の接続作業に際
し、密接して並ぶ多数の細い心線導体の端末をコネクタ
に接続する作業は手数を要し容易でないので接続作業を
自動化することが望まれている。このような多数のフラ
ットケーブルのコネクタ接続作業が自動化されるために
は各心線導体間の間隔が規定値になっていることが必要
なので、各心線導体間の間隔を正確に測定しなければな
らないが、従来はこの心線導体間の間隔を目視によって
測定していた。[Prior Art] Demand for flat cables, which are formed by arranging a large number of insulated core conductors in parallel and forming a flat strip, is increasing with the spread of 0Atll devices, etc., but when connecting the cable terminals, it is difficult to connect them closely. Since the work of connecting the terminals of a large number of thin core conductors lined up in a row to a connector is laborious and not easy, it is desired to automate the connection work. In order to automate the connector connection work for such a large number of flat cables, the spacing between each core conductor must be a specified value, so the spacing between each core conductor must be accurately measured. However, conventionally, the spacing between the core wire conductors was measured visually.
［発明が解決しようとする問題点］
前記のようにフラットケーブルの密接する多数の細い心
線導体間の間隔を目視により測定するのでは、効率が悪
いばかりでなく、機器の精密化にともない高精度が要求
されるのに正確な測定結果を得ることが困難であり、コ
ネクタ接続作業の自動化が容易でないという問題点があ
った。[Problems to be Solved by the Invention] Visually measuring the spacing between a large number of closely spaced thin core conductors of a flat cable as described above is not only inefficient, but also increases in cost as equipment becomes more precise. Although precision is required, it is difficult to obtain accurate measurement results, and there are problems in that it is not easy to automate the connector connection work.
そこで本発明はフラットケーブルの心線導体のような絶
縁金属線群の金属線間の間隔を正確にかつ効率良く測定
することができる方法を提供するものである。SUMMARY OF THE INVENTION Therefore, the present invention provides a method for accurately and efficiently measuring the distance between metal wires of a group of insulated metal wires, such as a core conductor of a flat cable.
［問題点を解決するための手段］
前記の問題点を解決するために本発明は、磁気ヘッドに
鋭角尖端３．４を設け、この磁気ヘッドに高周波励磁コ
イル６を設けて鋭角尖端３．４間のギャップに磁束密度
分布の不均一な高周波磁界を形成し、平帯状の絶縁金属
線群を前記のギャップに置いて磁束が金属線群を横切る
方向に磁気ヘッドと金属線群を相対的に移動させ、磁気
ヘッドに設けたパルス信号検出コイル７により検出され
る各パルス信号の時間間隔を測定することにより金属線
間の間隔を測定するようにしたものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a magnetic head with an acute-angled tip 3.4, and a high-frequency excitation coil 6 is provided on the magnetic head to form an acute-angled tip 3.4. A high frequency magnetic field with non-uniform magnetic flux density distribution is formed in the gap between them, and a group of flat insulated metal wires is placed in the gap, and the magnetic head and the metal wire group are moved relative to each other in a direction in which the magnetic flux crosses the metal wire group. The distance between the metal wires is measured by moving the metal wires and measuring the time interval of each pulse signal detected by a pulse signal detection coil 7 provided on the magnetic head.
［作用］
前記の高周波励磁コイルは磁気ヘッドのギャップに高周
波磁界を形成し、鋭角尖端３．４は、ギャップにおける
磁束密度分布を不均一な分布にしてその鋭角尖端に集中
磁束を生じさせるとともに、ギャップに置かれた金属線
群のうち鋭角尖端３．４の直下に位置する中央の金属線
を横切る磁束の密度を最大にする。[Function] The high-frequency excitation coil forms a high-frequency magnetic field in the gap of the magnetic head, and the sharp tip 3.4 makes the magnetic flux density distribution in the gap non-uniform, producing concentrated magnetic flux at the sharp tip, Among the metal wires placed in the gap, the density of the magnetic flux across the central metal wire located directly below the acute tip 3.4 is maximized.
このような磁束分布のギャップにおいて金属線群が磁束
を横切るように相対移動すると、鋭角尖端直下を各金属
線が横切るごとに鋭角尖端の集中磁束がその金属線と鎖
交してパルス信号が生じ、この各パルス信号はパルス信
号検出コイルに検出される。When a group of metal wires moves relative to each other to cross the magnetic flux in such a gap in the magnetic flux distribution, each time each metal wire crosses directly under the sharp tip, the concentrated magnetic flux at the sharp tip interlinks with the metal wire, producing a pulse signal. , each of these pulse signals is detected by a pulse signal detection coil.
このように各金属線ごとに検出された各パルス信号の間
隔時間を測定し、この間隔時間測定値と前記相対移動速
度とにより金属線間の間隔が算定される。The interval time of each pulse signal detected for each metal wire is thus measured, and the interval between the metal wires is calculated from this interval time measurement value and the relative movement speed.
［実施例］ 以下本発明の実施例を図面により説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の方法によりフラットケーブルの心線導
体である金属線間の距離を測定する例を示したものであ
る。FIG. 1 shows an example of measuring the distance between metal wires that are core conductors of a flat cable by the method of the present invention.
第１図において、１はフェライト製の磁気ヘッドであり
、そのギャップ２のヘッド対向先端は円錐形のような鋭
角尖端３．４に形成する。In FIG. 1, reference numeral 1 denotes a magnetic head made of ferrite, and the tip of the gap 2 facing the head is formed into an acute-angled point 3.4 like a cone.
５はヨーク部であり、このヨーク部５には高周波励磁コ
イル６、およびパルス信号検出コイル７を巻回する。８
はこの高周波励磁コイル６に接続された高周波発振回路
、９はパルス信号検出コイル７に接続された検出信号処
理回路である。Reference numeral 5 denotes a yoke portion, around which a high frequency excitation coil 6 and a pulse signal detection coil 7 are wound. 8
9 is a high frequency oscillation circuit connected to this high frequency excitation coil 6, and 9 is a detection signal processing circuit connected to the pulse signal detection coil 7.
前記の高周波励磁コイル６に高周波励ｍ電流たとえば５
００ＫＨｚの励磁電流を通ずると、磁気ヘッド１の鋭角
尖ｔＩＭ３．４間のギャップ２には高周波磁界が形成さ
れるが、この鋭角尖ｒ＠３．４には大量の漏れ磁束が集
中しギャップ２にはきわめて不均一な磁束密度分布が生
ずる。A high frequency excitation current m, for example 5 m, is applied to the high frequency excitation coil 6.
When an excitation current of 00 KHz is passed through, a high frequency magnetic field is formed in the gap 2 between the acute cusps tIM3.4 of the magnetic head 1, but a large amount of leakage magnetic flux concentrates on this acute cusps [email protected], and the gap 2 An extremely non-uniform magnetic flux density distribution occurs.
これはフェライトのような強磁性体と非磁性体との交界
面では非磁性体における磁束は交界面にほぼ垂直になる
ことによるものであり、第２図示のように、透磁率がμ
ｍの非磁性体とμ２の強磁性体（μｍ（μ２）の交界面
Ａ−Ａにおいて磁束Φが通る角度を０１、θ２とすると
ｔａｎθ１／ｌａｎθ２＝ μｍ／μ２ となりμ２＝
６０００μｍ で θ２＝８９°のときはθ１＝０．５
４″′ となる、このようにギャップ２における鋭角尖
端３．４には大量の漏れ磁束が集中し磁束密度の分布は
きわめて不均一となる。This is because at the interface between a ferromagnetic material such as ferrite and a non-magnetic material, the magnetic flux in the non-magnetic material is almost perpendicular to the interface, and as shown in the second figure, the magnetic permeability is μ.
If the angle through which the magnetic flux Φ passes through A-A at the interface A-A of m non-magnetic material and μ2 ferromagnetic material (μm (μ2)) is 01 and θ2, then tanθ1/lanθ2= μm/μ2 and μ2=
When θ2=89° at 6000μm, θ1=0.5
4"', a large amount of leakage magnetic flux concentrates at the sharp tip 3.4 in the gap 2, and the distribution of magnetic flux density becomes extremely non-uniform.
第３図はこのような磁気ヘッドの鋭角尖端３．４の磁束
密度の分布状態を示したものである。FIG. 3 shows the distribution of magnetic flux density at the acute tip 3.4 of such a magnetic head.
前記の高周波磁界が形成された鋭角尖端３．４間のギャ
ップ２にフラットケーブルＢを置いて磁気ヘッド１もし
くはフラットケーブルＢを動かして両者を心線導体Ｃの
直角方向に相対的に動かすと、このギャップ２の磁束を
導電性金属線の心線導体Ｃが横切るので ｅ＝ｄφ／ｄ
ｔ の起電力が生じ、この起電力は磁束の変化スピー
ドに比例し周波数が一定の場合は磁束密度が大きいほど
大なる起電力が生ずる。これによりパルス信号検出コイ
ル７の検出信号が検出信号処理回路９に出力される。When the flat cable B is placed in the gap 2 between the acute points 3 and 4 where the high-frequency magnetic field is formed and the magnetic head 1 or the flat cable B is moved to move both relatively in the direction perpendicular to the core conductor C, Since the core conductor C of the conductive metal wire crosses the magnetic flux of this gap 2, e=dφ/d
An electromotive force of t is generated, and this electromotive force is proportional to the speed of change of the magnetic flux, and when the frequency is constant, the greater the magnetic flux density, the greater the electromotive force is generated. As a result, the detection signal of the pulse signal detection coil 7 is output to the detection signal processing circuit 9.
このようにギャップ２における高周波磁界中におかれた
フラットケーブルＢの各心線導体Ｃと鎖交する磁束は、
第３図示のように各心線導体Ｃのうち鋭角尖端３．４の
直下に位置する中央の心線導体ｃｏを横切る磁束の密度
が最も大となる。The magnetic flux interlinking with each core conductor C of the flat cable B placed in the high-frequency magnetic field in the gap 2 is as follows:
As shown in FIG. 3, the density of the magnetic flux that crosses the central core conductor co located directly below the acute tip 3.4 among the core conductors C is the highest.
そこで磁気ヘッド１を第１図示の左向矢示方向に移動速
度■で移動させて鋭角尖端３．４の磁束がフラットケー
ブルＢを速度■で横切ると、パルス信号検出コイル７の
検出信号が検出信号処理回路９において増幅、検波され
て第４図示のような信号波形ｐｏ１、ｐ０２、ｐ０３・
・・が得られることになる。この信号を適当なしきい値
（ｅ）を持つコンパレータにより第５図示のようなパル
ス信号Ｐ１、ｐ２ 、ｐ３・・・にする。Therefore, when the magnetic head 1 is moved in the leftward arrow direction shown in the first figure at a moving speed ■ and the magnetic flux of the acute tip 3.4 crosses the flat cable B at a speed ■, a detection signal from the pulse signal detection coil 7 is detected. The signal processing circuit 9 amplifies and detects the signal to produce signal waveforms po1, p02, p03, and the like shown in FIG.
... will be obtained. These signals are converted into pulse signals P1, p2, p3, . . . as shown in FIG. 5 by a comparator having an appropriate threshold value (e).
前記のパルス信号ｐｉ 、Ｐ２ 、ｐ３・・・の間隔は
フラットケーブルＢの各心線導体Ｃの間隔に比例するか
ら、このパルス信号ｐｉ 、ｐ２ 、ｐ３・・、の間隔
時間を測定することにより各心線導体間の間隔を測定す
ることができる。Since the interval between the pulse signals pi, P2, p3, etc. is proportional to the interval between the core conductors C of the flat cable B, by measuring the interval time of the pulse signals pi, p2, p3,... The spacing between each core conductor can be measured.
この間隔時間測定の一層正確な測定値を得るために各パ
ルス信号ｐ１ 、ｐ２ 、ｐ３・・・のそれぞれの立上
るときの時間差ｔ１と立下るときの時間差ｔ２を測定す
れば、各導体心線間の間隔りは、ｔｌとｔ２の平均値と
磁気ヘッドの移動速度■から式 Ｄ＝Ｖ・ （ｔ−１＋
ｔ２ ）／２ により算定できる。なおこの各時間差
の測定値と上式の算定値は’ｔｂＩＪＬ機により迅速に
得ることができる。In order to obtain a more accurate measurement value of the interval time, if the time difference t1 at the time of rise and time difference t2 at the time of fall of each pulse signal p1, p2, p3... is measured, each conductor core wire The interval between tl and t2 is determined by the formula D=V・(t-1+
It can be calculated by t2 )/2. Note that the measured values of each time difference and the calculated values using the above formula can be quickly obtained using a 'tbIJL machine.
前記のようにしてフラットケーブルの心線導体である導
電性金属線の間の間隔が正確に効率良く測定されるので
、多数のフラットケーブルのコネクタ接続作業を自動化
することが可能となる。As described above, the distance between the conductive metal wires, which are the core conductors of the flat cables, can be accurately and efficiently measured, making it possible to automate the connector connection work of a large number of flat cables.
なおこのように鋭角尖端３．４を設けた磁気ヘッド１に
より金属線の位置を検出して測定する方法は、前記のフ
ラットケーブルの心線導体の測定のように導電性を持つ
長尺金属線の位置を測定するだけでなく、金属球体の位
置の測定にも利用することができる。Note that the method of detecting and measuring the position of a metal wire using the magnetic head 1 provided with the acute-angled tip 3.4 is similar to the measurement of the core conductor of a flat cable described above. It can be used not only to measure the position of a metal sphere, but also to measure the position of a metal sphere.
［発明の効果］
前述のように本発明は、磁気ヘッドに鋭角尖端を設けて
ギャップにおける磁束密度分布を不均一にし、この鋭角
尖端の磁束を金属線群に鎖交させて生ずるパルス信号の
間隔時間を測定して金属線間の間隔を測定するようにし
たので、正確な測定値を容易に得ることができるもので
ある。[Effects of the Invention] As described above, the present invention provides a magnetic head with an acute tip to make the magnetic flux density distribution uneven in the gap, and links the magnetic flux of the acute tip to a group of metal wires to improve the interval between pulse signals. Since the distance between the metal wires is measured by measuring time, accurate measured values can be easily obtained.
第１図は本発明の１実施例の説明図、第２図および第３
図は磁束分布の説明図、第４図および第５図はパルス信
号の説明図である。
１：磁気ヘッド ２：ギャップ
３．４：鋭角尖端
６：高周波励磁コイル
７：パルス信号検出コイル
Ｃ：金属線
特許出願人 古河電気工業株式会社
代理人 弁理士 岡１）喜久治
第３図 第１図
第４図
第５図FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIGS.
The figure is an explanatory diagram of magnetic flux distribution, and FIGS. 4 and 5 are explanatory diagrams of pulse signals. 1: Magnetic head 2: Gap 3.4: Acute point 6: High frequency excitation coil 7: Pulse signal detection coil C: Metal wire Patent applicant Furukawa Electric Co., Ltd. agent Patent attorney Oka 1) Kikuji Figure 3 Figure 1 Figure 4 Figure 5
Claims (1)
けて前記鋭角尖端間のギャップに磁束密度分布の不均一
な高周波磁界を形成し、平帯状に平行する絶縁金属線群
を前記ギャップに置いて磁束が金属線群を横切る方向に
相対移動させ、前記磁気ヘッドに設けたパルス信号検出
コイルで検出される各パルス信号の間隔時間を測定する
ことにより金属線間の間隔を測定することを特徴とする
絶縁金属線群間隔測定方法。A high-frequency excitation coil is provided on a magnetic head having acute-angled tips to form a high-frequency magnetic field with a non-uniform magnetic flux density distribution in the gap between the acute-angled tips, and a group of insulated metal wires parallel to each other in a flat band shape are placed in the gap to increase the magnetic flux. is relatively moved in a direction across the group of metal wires, and the distance between the metal wires is measured by measuring the interval time of each pulse signal detected by a pulse signal detection coil provided in the magnetic head. Method for measuring insulated metal wire group spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62333805A JPH0769134B2 (en) | 1987-12-30 | 1987-12-30 | Insulated metal wire group spacing measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62333805A JPH0769134B2 (en) | 1987-12-30 | 1987-12-30 | Insulated metal wire group spacing measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01176905A true JPH01176905A (en) | 1989-07-13 |
| JPH0769134B2 JPH0769134B2 (en) | 1995-07-26 |
Family
ID=18270148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62333805A Expired - Lifetime JPH0769134B2 (en) | 1987-12-30 | 1987-12-30 | Insulated metal wire group spacing measurement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0769134B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006349627A (en) * | 2005-06-20 | 2006-12-28 | Yokohama Rubber Co Ltd:The | Method and device for detecting wire position |
| US8886266B2 (en) | 2010-06-21 | 2014-11-11 | Sumitomo Electric Industries, Ltd. | Superconducting coil, rotating device, and superconducting coil manufacturing method |
| US9065306B2 (en) | 2009-10-20 | 2015-06-23 | Sumitomo Electric Industries, Ltd. | Oxide superconducting coil, oxide-superconducting-coil assembly, and rotating machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524262A (en) * | 1975-06-28 | 1977-01-13 | Ono Sokki Co Ltd | Method to detect disposition pitches |
| JPS5880518U (en) * | 1981-11-28 | 1983-05-31 | 株式会社 小野測器 | electromagnetic induction detector |
| JPS61149822U (en) * | 1985-03-11 | 1986-09-16 |
-
1987
- 1987-12-30 JP JP62333805A patent/JPH0769134B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524262A (en) * | 1975-06-28 | 1977-01-13 | Ono Sokki Co Ltd | Method to detect disposition pitches |
| JPS5880518U (en) * | 1981-11-28 | 1983-05-31 | 株式会社 小野測器 | electromagnetic induction detector |
| JPS61149822U (en) * | 1985-03-11 | 1986-09-16 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006349627A (en) * | 2005-06-20 | 2006-12-28 | Yokohama Rubber Co Ltd:The | Method and device for detecting wire position |
| US9065306B2 (en) | 2009-10-20 | 2015-06-23 | Sumitomo Electric Industries, Ltd. | Oxide superconducting coil, oxide-superconducting-coil assembly, and rotating machine |
| US8886266B2 (en) | 2010-06-21 | 2014-11-11 | Sumitomo Electric Industries, Ltd. | Superconducting coil, rotating device, and superconducting coil manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0769134B2 (en) | 1995-07-26 |
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