JPS62212548A - Method for proof testing optical fiber connection part - Google Patents
Method for proof testing optical fiber connection partInfo
- Publication number
- JPS62212548A JPS62212548A JP5787486A JP5787486A JPS62212548A JP S62212548 A JPS62212548 A JP S62212548A JP 5787486 A JP5787486 A JP 5787486A JP 5787486 A JP5787486 A JP 5787486A JP S62212548 A JPS62212548 A JP S62212548A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- load
- clamp
- proof
- core wire
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 34
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000007526 fusion splicing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
［１明のＶ！頂と目的］
本発明は、光ファイバ接続部プルーフ試験方法の改良に
関するものである。[Detailed Description of the Invention] [1 Ming no V! SUMMARY AND OBJECTIVES] The present invention relates to an improvement in an optical fiber joint proof testing method.
従来の光ファイバ接続部１ルーフ試験方法を第２図、第
３図により説明１」る。第２図は通常の光ファイバ心線
の断面図、第３図は従来の方法を実施する装置の概略図
である。第２図において、１は光ファイバ心線、２は裸
ファイバ、３は１次被覆層、４は２次被覆層、５は最外
被覆層である。A conventional optical fiber joint 1 roof testing method will be explained with reference to FIGS. 2 and 3. FIG. 2 is a sectional view of a conventional optical fiber, and FIG. 3 is a schematic diagram of an apparatus for carrying out the conventional method. In FIG. 2, 1 is a coated optical fiber, 2 is a bare fiber, 3 is a primary coating layer, 4 is a secondary coating layer, and 5 is an outermost coating layer.
また、第３図において、６は融着接続装置の融着接続器
、７は電極棒、８は■溝ブロック、９ａ。Further, in FIG. 3, 6 is a fusion splicer of a fusion splicing device, 7 is an electrode rod, 8 is a groove block, and 9a.
９ｂはクランプ、１０はスプリングである。9b is a clamp, and 10 is a spring.
そして、２本の光ファイバ心線１を融着接続するには、
ナイロン、テフロン等からなる最外被覆Ｗ！Ｊ５、シリ
コーン等によりそれぞれ形成された２次被覆層４．１次
被覆層３を除去し裸ファイバ２の状態にする。次に、裸
ファイバ２部分を任意長だけ残してファイバ軸線と直角
に切断し、２本の裸ファイバ２を融着接続器６のＶ ｆ
Ｍ ７ Ｉ−１ツク６上に載冒し端面を対向させ突合せ
た状態で２木のｆＬｊ極棒７の間にアーク放電し加熱さ
れることにより融着し接続が完了される。その後、この
裸ファイバ２部に対し、接続部を補強するまでの行程に
おいて任意の応力が加わったり、補強侵に環境温磨等に
より熱応力を受けることを考朦に入れ、プルーフ荷重を
負荷して長１！１１保証を行なう方式を採っている。Then, in order to fusion splice the two optical fiber core wires 1,
Outermost coating made of nylon, Teflon, etc. The secondary coating layer 4 and the primary coating layer 3 formed of J5, silicone, etc. are removed to leave a bare fiber 2. Next, the bare fiber 2 is cut at right angles to the fiber axis, leaving a desired length of the bare fiber 2, and the two bare fibers 2 are connected to the V f of the fusion splicer 6.
With the two fLj pole rods 7 placed on top of the M7I-1 screw 6 with their end faces facing each other and abutted against each other, an arc discharges between the two fLj pole rods 7 and heat is generated to fuse and complete the connection. After that, a proof load is applied to these two bare fibers, taking into consideration that any stress will be applied during the process up to reinforcing the connection part, and that the reinforcement will be subjected to thermal stress due to environmental warming etc. The system uses a long 1!11 guarantee.
プルーフ荷車を負荷するプルーフ試験は、まず、第３図
において上記のように２木の電極溝７．７間にアーク放
電し加熱し裸ファイバ２．２の端面を融着さ牲接続が完
了される。その後、クランプ９ａ、９ａにより光ファイ
バ心線１を押さえ付けながらクランプ９ａを固定し、ク
ランプ９ｂに矢印Ｄプノ向の力をスプリング１０にも同
時に加えながら、接続部に一定時間、一定の張力を負荷
するようにして強度確認を行なっている。従って、光フ
ァイバ接続部においては引張力のみによる評価が行なわ
れている。一方、光ファイバ接続部においては、光ファ
イバの巻ぐせや融着接続器６から補強装置に移設Ｊる際
に捩りが加わることが比較的多くあり、これらの現粂に
対応を加味した試験評価方法の確ｔｔが認められていた
。In the proof test in which a proof cart is loaded, first, as shown in Fig. 3, arc discharge is applied between the two electrode grooves 7.7 to heat the end faces of the bare fibers 2.2, and the sacrificial connection is completed. Ru. After that, the clamp 9a is fixed while pressing the optical fiber core 1 with the clamps 9a, 9a, and a constant tension is applied to the connection part for a certain period of time while simultaneously applying a force in the direction of arrow D to the clamp 9b to the spring 10. The strength is confirmed by applying a load. Therefore, optical fiber connections are evaluated based only on tensile force. On the other hand, in the optical fiber connection section, it is relatively common for the optical fiber to be twisted or torsioned when transferring it from the fusion splicer 6 to the reinforcing device. The reliability of the method was recognized.
本発明は、上記の状況に鑑みなされたものであり、小形
の装置で軸り向の引張力と同時に捩れ力を付加したプル
ーフ荷重による試験ができる光ファイバ接続部プルーフ
試験方法を提供Ｊることを目的としたものである。The present invention has been made in view of the above-mentioned circumstances, and provides an optical fiber connection proof testing method that allows testing using a proof load in which an axial tensile force and a torsional force are added at the same time using a small device. The purpose is to
［発明の概要］
本発明の光ファイバ接続部プルーフ試験方法は、光ファ
イバ心線の被覆が除去された後の裸ファイバどうしを融
着し接続された状態で軸方向に引張荷重を加えて行なう
プルーフ試験の場合に、上記引張荷車と同時に、上記光
ファイバ心線を把持Ｊるクランプがクランプ回転部把持
板に回Ｖノ自在に保持された状態で、上気光ファイバ心
線に捩れ荷重を加え、上記引張及び該捩れの合成力をプ
ルーフ荷重として行なう方法である。[Summary of the Invention] The optical fiber joint proof testing method of the present invention is performed by applying a tensile load in the axial direction to the bare fibers after the coating of the optical fiber core wire is removed and then fused together and connected. In the case of a proof test, at the same time as the pulling cart, a torsional load is applied to the upper optical fiber core while the clamp that grips the optical fiber core is freely rotated by the gripping plate of the clamp rotation part. In addition, this is a method in which the combined force of the above-mentioned tension and the torsion is used as a proof load.
［実施例］
以下、本発明の光ファイバ接続部プルーフ試験方法を実
施例を用い、従来の方法を実施時の装「りと同部品は同
符号で示し同部分の構造の説明は省略し第１図により説
明する。第１図はプルーフ荷重付加構造の説明図である
。図におい−（，９Ａ。[Example] Hereinafter, the optical fiber connection proof testing method of the present invention will be described using an example, and the same parts as those used in the conventional method will be denoted by the same reference numerals and explanations of the structures of the same parts will be omitted. This will be explained with reference to Figure 1. Figure 1 is an explanatory diagram of the proof load applying structure.
９Ｂはクランプ、１１はクランプ回転部把持板ｊ板であ
る。クランプ９Ａは融着接続器６（第１図には図示せず
）上に一端を固定されたスプリング１０の他端にスプリ
ング１０の張力に抗し矢印Ｄｈ向に引張自在に取り付け
られている。クランプ９Ｂは光ファイバ心線１の融着接
続点を挟んでクランプ９△側と対向側で、融着接続器６
上に固定されたクランプ回転板把持器１１の内側に回動
自在に取り付けられている。9B is a clamp, and 11 is a clamp rotation part gripping plate J plate. The clamp 9A is attached to the other end of a spring 10 whose one end is fixed on the fusion splicer 6 (not shown in FIG. 1) so that it can be pulled in the direction of the arrow Dh against the tension of the spring 10. The clamp 9B is on the side opposite to the clamp 9△ side across the fusion splicing point of the optical fiber core 1, and is connected to the fusion splicer 6.
It is rotatably attached inside the clamp rotating plate gripper 11 fixed above.
そして、融着接続後の光ファイバ心線１をクランプ９Ａ
及び９Ｂでそれぞれ押さえ付は固着後、光ファイバ融着
接続部に対しクランプ９Ａには矢印り方向の引張力を加
え、クランプ９Ｂには、光ファイバ心線１に捩れ荷重を
加えたい方向の矢印Ｅ方向に捩りを与えるようにする。Then, the optical fiber core wire 1 after fusion splicing is clamped at 9A.
and 9B, after fixing, apply a tensile force to the optical fiber fusion spliced part in the direction of the arrow in the clamp 9A, and apply a tensile force in the direction of the arrow in which you want to apply a torsional load to the optical fiber core 1 to the clamp 9B. Try to give a twist in the E direction.
引張力と捩れが同時に加わった時の合成力Ｆは（１）式
で表される。The resultant force F when tensile force and torsion are applied simultaneously is expressed by equation (1).
但し、
ＴＳ：引 張 力
Ｅ ：ファイバのヤング率
（７３００ｋ（＋／ｍｌｌ１２）
△ ：ファイバの断面積
（１２，２７ｘ １０’ ｍｍ２）
ｄ ：ファイバ径（０，１２５ｍｍ）
ν ：ポアソン比（０，１７）
θ：捩 リ 角
今、ＴＳを２０ａ、θを２２°／３２ｍｍ（０゜０１２
ｒａｄ ／ｍａｄ）にすれば、（１）式により、Ｆは
４０ｇとなる。この値をベースにプルーフ荷重を算出す
ることにより従来のプルーフ試験方法と同様の評価を得
ることがＢＪ能である。そして、従来の軸方向のみの引
張力の他に捩りを加えた合成力のプルーフ荷重により試
験を行なうことができる。However, TS: Tensile force E: Young's modulus of fiber (7300k (+/ml12)) △: Cross-sectional area of fiber (12,27x 10' mm2) d: Fiber diameter (0,125mm) ν: Poisson's ratio (0, 17) θ: Torsion angle Now, TS is 20a, θ is 22°/32mm (0°012
rad/mad), F becomes 40g according to equation (1). It is BJ's ability to obtain the same evaluation as the conventional proof test method by calculating the proof load based on this value. In addition to the conventional tensile force only in the axial direction, the test can be performed using a proof load of a combined force including torsion.
しかも、捩りを与えるクランプ９Ｂをクランプ回転部把
持板１１の内部に回動自在に保持覆る構造としたので構
造が簡単で小形化できる。Furthermore, since the clamp 9B that applies torsion is rotatably held and covered inside the clamp rotating portion holding plate 11, the structure is simple and can be made compact.
１」なわち、従来のプルーフ試験では、４０（コの引張
力で行っていたのに対し、本実施例においては２００の
引張力で試験を行うことができるのである。In other words, in the conventional proof test, the test was conducted with a tensile force of 40 (k), but in this embodiment, the test can be conducted with a tensile force of 200.
このように本実施例の光ファイバ接続部プルーフ試験方
法は、１袖方向の引張荷重と同１１５に、光ファイバ心
線を把持するクランプがクランプ回動部把持板に回Ｖノ
自在に把持された状態で、光ファイバ心線に所望の方向
の捩れ荷重を加えてその合成力をプルーフ荷重として行
なうので、装置を大形化することなく小形の装置で軸方
向の引張力と同時に捩れ力を付加したプルーフ荷重試験
を行なうことができる。In this way, in the optical fiber connection proof test method of this embodiment, the clamp that grips the optical fiber is held by the clamp rotation part gripping plate so that it can be rotated at the same time as the tensile load in the first sleeve direction. In this state, a torsional load is applied to the optical fiber in the desired direction, and the resultant force is used as a proof load. Therefore, the torsional force can be applied at the same time as the tensile force in the axial direction with a small device without increasing the size of the device. An additional proof load test can be performed.
［発明の効果］
以上記述しＩＣ如く本発明の光ファイバ接続部プルーフ
試験方法によれば小形の装置で軸方向の引張力と同時に
捩れ力を付加したプルーフ荷重による試験ができる効果
を有するｂのである。[Effects of the Invention] As described above, the optical fiber connection proof testing method of the present invention, such as IC, has the effect of being able to perform a test using a proof load in which a tensile force in the axial direction and a torsion force are added at the same time using a small device.b be.
第１図は本発明の光ファイバ接続部プルーフ試験方法を
実施する装Ｙのプルーフ荷ｍ負荷構造の３１明図、第２
図は通常の光ファイバ心線の断面図、第３図は従来の光
ファイバ接続部プルーフ試験方法を実施する装置の概略
図である。
１・・・光ファイバ心線。
２・・・裸ファイバ。
３・・・１次被覆層。
４・・・２次被覆層。
５・・・最外被覆層。
９Ａ、 ９Ｂ・・・り ラ ン プ。
１１・・・クランプ回転部把持板。Figure 1 is a 31-level diagram of the proof load m load structure of the equipment Y for carrying out the optical fiber joint proof testing method of the present invention, and Figure 2 is a
The figure is a cross-sectional view of a conventional optical fiber core, and FIG. 3 is a schematic diagram of an apparatus for carrying out a conventional optical fiber joint proof testing method. 1...Optical fiber core. 2...Bare fiber. 3... Primary coating layer. 4... Secondary coating layer. 5... Outermost coating layer. 9A, 9B...Ramp. 11...Clamp rotation part gripping plate.
Claims (1)
バどうしを融着し接続された状態で軸方向に引張荷重を
加えて行なうプルーフ試験の方法において、上記引張荷
重と同時に、上記光ファイバ心線を把持するクランプが
クランプ回動部把持板に回動自在に保持された状態で、
上記光ファイバ心線に捩れ荷重を加え、上記引張及び該
捩れの合成力をプルーフ荷重として行なうことを特徴と
する光ファイバ接続部プルーフ試験方法。(1) In a proof test method in which a tensile load is applied in the axial direction to the bare fibers after the coating of the optical fiber core has been removed and the fibers are fused and connected, the above-mentioned With the clamp that grips the fiber core held rotatably by the clamp rotation part gripping plate,
A method for proof testing an optical fiber connection part, characterized in that a torsional load is applied to the optical fiber core wire, and the resultant force of the tension and the twist is used as a proof load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5787486A JPS62212548A (en) | 1986-03-14 | 1986-03-14 | Method for proof testing optical fiber connection part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5787486A JPS62212548A (en) | 1986-03-14 | 1986-03-14 | Method for proof testing optical fiber connection part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62212548A true JPS62212548A (en) | 1987-09-18 |
Family
ID=13068127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5787486A Pending JPS62212548A (en) | 1986-03-14 | 1986-03-14 | Method for proof testing optical fiber connection part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62212548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445386A (en) * | 2011-10-10 | 2012-05-09 | 东华大学 | Microscale positioning holder for bending fatigue of fixed point of single fiber |
| US20180356324A1 (en) * | 2016-09-09 | 2018-12-13 | China Electric Power Research Institute Company Limited | Opgw single wire torsional fatigue test method, apparatus and storage medium |
-
1986
- 1986-03-14 JP JP5787486A patent/JPS62212548A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445386A (en) * | 2011-10-10 | 2012-05-09 | 东华大学 | Microscale positioning holder for bending fatigue of fixed point of single fiber |
| US20180356324A1 (en) * | 2016-09-09 | 2018-12-13 | China Electric Power Research Institute Company Limited | Opgw single wire torsional fatigue test method, apparatus and storage medium |
| US10712247B2 (en) * | 2016-09-09 | 2020-07-14 | China Electric Power Research Institute Co. Ltd. | OPGW single wire torsional fatigue test method, apparatus and storage medium |
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