JPS59135339A - Disconnection detecting system of fiber for power transmission - Google Patents
Disconnection detecting system of fiber for power transmissionInfo
- Publication number
- JPS59135339A JPS59135339A JP58009055A JP905583A JPS59135339A JP S59135339 A JPS59135339 A JP S59135339A JP 58009055 A JP58009055 A JP 58009055A JP 905583 A JP905583 A JP 905583A JP S59135339 A JPS59135339 A JP S59135339A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- plastic
- power transmission
- power transmitting
- fibers
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
レーザメス、レーザ加工装置等に使用する光のパワー伝
送用ファイバの断線を検知する方式(こ関するものであ
る。[Detailed Description of the Invention] [Technical Field] A method for detecting a break in a fiber for transmitting optical power used in a laser knife, a laser processing device, etc.
ファイバによってパワー伝送を行う場合には、ファイバ
の断線による事故に注意しなければならない。When transmitting power using fiber, care must be taken to avoid accidents due to fiber breakage.
このため、断線を検知する方法としては、例えば特開昭
S乙−720乙2(エネルギー伝送用ファイバ)および
実願昭j7−乙92// (溶断検知線を有するエネル
ギーファイバ)が提案されている。For this reason, as a method for detecting wire breakage, for example, Japanese Patent Application Laid-Open No. Sho-720-Otsu 2 (energy transmission fiber) and Japanese Patent Application Sho-J7-Otsu 92// (energy fiber with a fusing detection wire) have been proposed. There is.
しかし、上記のものはファイバ伝送路の終端まで電気回
路の一部が延びているため、医療機器であるし〜ザメス
やある種の加工装置のように、特に電気゛的絶縁性を要
求される場合には、終端処理に特別に絶縁対策を講じる
必要がある。これは、ファイバの長所である絶縁性と相
反するものである。However, the above-mentioned equipment has a part of the electrical circuit extending to the end of the fiber transmission line, so it is a medical device and requires special electrical insulation, such as a laser beam or some type of processing equipment. In some cases, special insulation measures must be taken for termination. This is contrary to the insulating property, which is an advantage of fiber.
本発明は、上述の従来技術の問題点に対し、光によるフ
ァイバ断線検知方式を提供するもので、第1図に基本方
式を示して、本発明の詳細な説明する。The present invention solves the problems of the prior art described above by providing an optical fiber breakage detection method. The basic method is shown in FIG. 1, and the present invention will be described in detail.
第1図(イ)において、パワービーム1をパワー伝送用
ファイバ2に沿って2本のプラスチ゛ンクファイバ3a
、3bを配置する。こび〕うち、プラスチ・ンクファイ
バ3aに参照光4か入射され1、d、<対端(終端)側
に設けられた反射面5により参照光4カ・反身1され、
プラスチックノアイノ<3bを辿って反射1色6カ\デ
イデクタフで受光される。In FIG. 1(A), a power beam 1 is connected to two plastic fibers 3a along a power transmission fiber 2.
, 3b are placed. Among them, the reference beam 4 is incident on the plastic fiber 3a, and the reflection surface 5 provided on the opposite end (terminus) side causes the reference beam 4 to be reflected by the reflection surface 5,
The light follows the plastic noa < 3b and is received by 6 colors of reflected light.
正常時の場合は、上述の第1図(イ)σ9とおりて、!
、うるか、第1図(ロ)のように隣接Jる/ぐツー伝送
LHファイバ1か断線−4れば、熔断部8伺近σつ温度
(ま数700°C以七とな以北低融点(100〜100
数−1′度)のプラスチックノアイノ13a、3bを熔
力)すC,このため、第3図(ロ)に示すように参照光
4σ)反射ノ已6(第1ン1(ロ)参照)か無くなり、
ディテクタ7Gこ受ゲ己さ才′lなくなる。すなわち、
ディテクタ7の143ノJの変化に、+ニー)でパワー
伝送用ファイノ・2ぴ)断線を知ることかできる。In normal conditions, as shown in Figure 1 (a) σ9 above, !
, if the adjacent J/G2 transmission LH fiber 1 or -4 is broken as shown in Figure 1 (b), the temperature near the welding part 8 (above 700°C and the lower north) Melting point (100-100
Therefore, as shown in FIG. ) is gone,
Detector 7G will lose its ability. That is,
From the change in 143 J of the detector 7, you can know that the power transmission phino wire (2 pin) is disconnected by +knee).
たKし、送受光2本の7°ラスチンクフアイノ\3a。Then, there are 2 7° last-angle fins for transmitting and receiving light.
3bは各々/木のファインく素線Gこ12τρ)1′、
数本束ねたものでル〕つてもよい。3b is each fine strand of wood G (12τρ)1',
You can also bundle several strands together.
第1図(イ) 、 (■7)による基本方式Gこ基1デ
Q・て、ン゛52・図に本発明の最良の実施例を示して
説明する。Based on the basic system shown in FIGS. 1(a) and (7), the best embodiment of the present invention will be explained with reference to FIG. 52.
第2図において、参照光4は特に限定しないか、可視光
の例えばHe−Neレーザ光等が扱い易く便利である。In FIG. 2, the reference light 4 is not particularly limited, or visible light such as He-Ne laser light is easy to handle and convenient.
その理由は、11η常パワービーム1として用いるCO
2レーザ又はY A G Lレーザは赤外光線で目には
見えないため、カイト光としてHe−Neレーザを使用
することか多く、これを分岐して使用できる。またHe
−Neレーザは目視もてきるため、調整、メンテナンス
時には便利である。The reason is that the CO used as the 11η normal power beam 1
Since the 2 laser or the YAGL laser is an infrared ray and is invisible to the human eye, a He-Ne laser is often used as the kite light, and this can be branched and used. Also He
-Ne laser can be visually observed, which is convenient for adjustment and maintenance.
(本実施例では使用してい4fいか、終端の反射コー
1・・の反射率を50%、透過率を50%程度にすれば
、透過光をそのま\カイト光として利用できるため、プ
ラスチックファイバ3aおよびその周辺部品を共用でき
る。)
反射コートの代りに終端に、マツチングオイル11を介
してミラー12を対向させると、構造は複雑であるか製
作は容易で信頼・姓も高い。(In this example, 4f is used or the reflective cable at the end is
If the reflectance and transmittance of the optical fibers 1, . ) Instead of a reflective coating, if a mirror 12 is placed at the end with a matching oil 11 interposed therebetween, the structure may be complicated, but manufacturing is easy, and the reliability and reputation are high.
プラスチックファイバ3aに良好に参照光4を入射させ
るにはレンズ13を用いて図示するように小さなスポッ
トに絞りこむ方が良い。In order to make the reference light 4 well enter the plastic fiber 3a, it is better to focus it into a small spot using a lens 13 as shown in the figure.
このレンズ13は無反射コート(図示省略)により透過
率はぼ’Z1009toに近づけることかrrJ能であ
る。同様にプラスチックファイバ3aの入射端も無反射
コートを咋ゼけ、レンズ13やファイバ入射端からの反
則によるノイズ成分を消滅さセイ)ことができる。This lens 13 has a non-reflective coating (not shown), so that the transmittance can be made close to that of Z1009. Similarly, the input end of the plastic fiber 3a can be coated with an anti-reflection coating to eliminate noise components due to fouling from the lens 13 and the input end of the fiber.
ディテクタ7は特に選定しないか、その出力によって断
線を検知した時には、たKちにレーザ電源14の遮断そ
の他の処置を行うことか必要である。Either the detector 7 must not be specially selected, or when a disconnection is detected by its output, it is necessary to immediately shut off the laser power source 14 or take other measures.
そのため比較回路15.断線検知信け16.レーザ電源
14の制御回路17.警報回路18か配置され、ブザー
19.ランプ20.その他警報器21か図示するように
配置t1さねている。Therefore, the comparison circuit 15. Disconnection detection signal 16. Control circuit 17 for laser power supply 14. An alarm circuit 18 is installed, and a buzzer 19. Lamp 20. Other alarm devices 21 are arranged t1 as shown in the figure.
本発明は子連のことより次の効果をイjしている。 The present invention has the following effects from the child chain.
ディテクタぞの他により、パワー伝送ファイバの断線を
プラスチックファイバからの反射光の変化により検知し
、完全に安全上の措置が謡じられている。A break in the power transmission fiber is detected by a change in the reflected light from the plastic fiber using a detector, which is a complete safety measure.
第1図は本発明の基本方式に関するもので1.(イ)は
正常状態、(ロ)はパワー伝送用ファイバ断線状態のそ
れぞれ説明図、第2図は本発明の詳細な説明図である。
1・・パワービーム、2 ・ノぐツー伝送用ファイバ、
3a 、 3b・・プラスチックファイバ、4・参照光
、5・・・反射面、6・・・反射光、7・・・ディテク
タ、8・・・熔断部11・・・マツチングオイル、12
・・・ミラー、13・・レンズ、14・・レーザ電源、
15・・・比較回路、16・・・断線検知信号、17・
・レーザ電源制御回路、18・・・警報回路、19・・
ブザー、20・・・ランプ、21 その他の警報器。
フr+i <イ)
Y
りV1閉 (ロ)FIG. 1 relates to the basic system of the present invention.1. (A) is an explanatory diagram of a normal state, (B) is an explanatory diagram of a power transmission fiber disconnected state, and FIG. 2 is a detailed explanatory diagram of the present invention. 1. Power beam, 2. Nogutsu transmission fiber,
3a, 3b...Plastic fiber, 4...Reference light, 5...Reflecting surface, 6...Reflected light, 7...Detector, 8...Fusing part 11...Matching oil, 12
...Mirror, 13..Lens, 14..Laser power supply,
15... Comparison circuit, 16... Disconnection detection signal, 17.
・Laser power supply control circuit, 18... Alarm circuit, 19...
Buzzer, 20...Lamp, 21 Other alarms. F r + i < A) Y ri V1 closed (B)
Claims (1)
反射ミラーを対向させた送受光2本σ〕プラスチックフ
ァイバと、7本のプラスチックファイバに導入される参
照光と、もう7本のプラスチックファイバからの反・射
光を受光する光ディテクタとを含み、ノぐツー伝送用フ
ァイバの断線があれば、プラスチックファイバも断線し
、反射光量が変化すること(こよって、パワー伝送用フ
ァイノくめ断線を検知するパワー伝送用ファイバの断線
検知方式。1. Two light transmitting and receiving beams placed along the power transmission fiber with a reflective mirror facing each other at the end σ] plastic fiber, reference light introduced into seven plastic fibers, and another seven plastic fibers. If there is a break in the fiber for power transmission, the plastic fiber will also break and the amount of reflected light will change (therefore, it will be possible to detect the break in the fiber for power transmission. Disconnection detection method for power transmission fiber.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58009055A JPS59135339A (en) | 1983-01-22 | 1983-01-22 | Disconnection detecting system of fiber for power transmission |
EP19830112920 EP0113104B1 (en) | 1982-12-24 | 1983-12-21 | Device for detecting fractures in power transmission fibers |
CA000443878A CA1218724A (en) | 1982-12-24 | 1983-12-21 | Device for detecting fractures in power transmission fibers |
AU22724/83A AU561121B2 (en) | 1982-12-24 | 1983-12-21 | Device for detecting fractures in power transmission fibres |
DE8383112920T DE3372540D1 (en) | 1982-12-24 | 1983-12-21 | Device for detecting fractures in power transmission fibers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58009055A JPS59135339A (en) | 1983-01-22 | 1983-01-22 | Disconnection detecting system of fiber for power transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59135339A true JPS59135339A (en) | 1984-08-03 |
Family
ID=11709941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58009055A Pending JPS59135339A (en) | 1982-12-24 | 1983-01-22 | Disconnection detecting system of fiber for power transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59135339A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06163745A (en) * | 1992-11-24 | 1994-06-10 | Matsushita Electric Works Ltd | Module-substrate sealing frame |
JP2008145410A (en) * | 2006-11-16 | 2008-06-26 | Furukawa Electric Co Ltd:The | Optical core wire identification method and identification device |
-
1983
- 1983-01-22 JP JP58009055A patent/JPS59135339A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06163745A (en) * | 1992-11-24 | 1994-06-10 | Matsushita Electric Works Ltd | Module-substrate sealing frame |
JP2008145410A (en) * | 2006-11-16 | 2008-06-26 | Furukawa Electric Co Ltd:The | Optical core wire identification method and identification device |
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