JPS61157999A - Fetching of signal from rotor - Google Patents
Fetching of signal from rotorInfo
- Publication number
- JPS61157999A JPS61157999A JP27782584A JP27782584A JPS61157999A JP S61157999 A JPS61157999 A JP S61157999A JP 27782584 A JP27782584 A JP 27782584A JP 27782584 A JP27782584 A JP 27782584A JP S61157999 A JPS61157999 A JP S61157999A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- optical
- rotating shaft
- converter
- leaky
- 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
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、回転体からの信号取り出し、詳しくは、高速
で回転する回転体から発する測定量を電気→光変換し、
変換された光信号を高速回転体外に取り出す方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to extracting signals from a rotating body, specifically converting a measured quantity emitted from a rotating body at high speed from electricity to light.
This invention relates to a method for extracting a converted optical signal to the outside of a high-speed rotating body.
（従来の技術）
自動車用エンヂンの性能チェックの一つとして回転軸の
温度、回転軸に加わる応力や圧力等の測定がある。これ
等の測定は、熱電対やワイヤストレンゲージを用いて電
気量として検出し、この電気量を回転軸に設けられたス
リップリングに導き、該スリップリングに接する接触子
によって回転体外に取り出しているが、周知のように自
動車用エンヂンの回転数は通常２０ＱＯｒｐ−以上であ
るため、スリップリングはすぐ壊れてしまい、実際には
、消耗品的感覚で使用されており、更に問題なのは寿命
が短いために長時間のテストの際には、回転軸に予備の
スリップリングを設け、第１のスリップリングが駄目に
なった場合第２のスリップリングを用いるなどしていた
。(Prior Art) One way to check the performance of an automobile engine is to measure the temperature of the rotating shaft and the stress and pressure applied to the rotating shaft. These measurements are performed by detecting the amount of electricity using a thermocouple or wire strain gauge, guiding this amount of electricity to a slip ring installed on the rotating shaft, and taking it out of the rotating body using a contact in contact with the slip ring. However, as is well known, the rotational speed of an automobile engine is usually over 20QOrp-, so slip rings break easily and are actually used as consumable items.What's more problematic is that they have a short lifespan. During long-term tests, a spare slip ring was installed on the rotating shaft, and if the first slip ring failed, a second slip ring was used.
（発明の目的）
本発明は、以上の点に鑑みて成されたもので高速回転軸
から発する温度、応力、圧力等の測定量を長時間安定し
て確実に回転軸外に取り出す方法を提供しようとするも
のである。(Objective of the Invention) The present invention has been made in view of the above points, and provides a method for reliably extracting measured quantities such as temperature, stress, pressure, etc. emitted from a high-speed rotating shaft for a long period of time. This is what I am trying to do.
（発明の構成および作用の説明）
本発明は、高速回転軸で生じる温度、応力、圧力等を熱
電対、ワイヤストレンゲージ等で検出し、検出された電
気量を電気→光変換器を通して光信号に変換し、変換さ
れた光信号をオプチカルファイバーによりて回転軸外周
に設けたリング状の漏洩オプチカルファイバーに導き、
該光信号を該漏洩オプチカルファイバーから回転軸外に
発信させ、発信された光信号を対向位置に配設された受
光素子で受信し、受信光信号をオプチカルファイバーに
より光→電気変換器に導き電気量に変換することを特徴
とするものである。(Description of structure and operation of the invention) The present invention detects temperature, stress, pressure, etc. generated in a high-speed rotating shaft using a thermocouple, wire strain gauge, etc., and converts the detected amount of electricity into an optical signal through an electrical to optical converter. The converted optical signal is guided through an optical fiber to a ring-shaped leaky optical fiber installed around the outer circumference of the rotating shaft.
The optical signal is transmitted from the leaky optical fiber to the outside of the rotation axis, the transmitted optical signal is received by a light-receiving element disposed at an opposite position, and the received optical signal is guided to an optical-to-electrical converter through the optical fiber to generate electricity. It is characterized by converting it into a quantity.
（実施例） 次に本発明の実施例を図面と共に説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
１は熱電対（図示せず）あるいはワイヤストレンゲージ
（図示せず）等から送られて来た電気信号を光信号に変
換する電気−光変換器である。２は変換された光信号を
漏洩オプチカルファイバー３に導くオプチカルファイバ
ーで、漏洩オプチカルファイバー３は回転軸４の外周に
リング状を形成して装着されている。５はリング状漏洩
オプチカルファイバーを装着する手段で複数のリング状
漏洩オプチカルファイバー３．３’、３”は遮蔽板６〜
６°°°。Reference numeral 1 denotes an electro-optical converter that converts an electrical signal sent from a thermocouple (not shown) or a wire strain gauge (not shown) into an optical signal. Reference numeral 2 denotes an optical fiber that guides the converted optical signal to a leaky optical fiber 3. The leaky optical fiber 3 is attached to the outer periphery of the rotating shaft 4 in a ring shape. 5 is a means for attaching a plurality of ring-shaped leaky optical fibers 3.3', 3'' is a means for attaching a ring-shaped leaky optical fiber to a shielding plate 6~
6°°°.
によってそれぞれが隔離されている７はオプチカルファ
イバー装着手段５のボスである。８は前記漏洩オプチカ
ルファイバー３の対向位置に配設した受光素子で、該受
光素子８には、オプチカルファイバー９が接続されてお
り、該オプチカルファイバー９の他端は光−電気変換器
ｌＯに接続される。7 are bosses of the optical fiber attachment means 5, which are separated from each other by . Reference numeral 8 denotes a light-receiving element disposed opposite the leaky optical fiber 3. An optical fiber 9 is connected to the light-receiving element 8, and the other end of the optical fiber 9 is connected to an optical-to-electrical converter lO. be done.
また、他の実施例（第３図参照）では、受光素子に代え
てリング状漏洩オプチカルファイバー３に沿って窓付オ
プチカルファイバー１１を対向配置し、該窓付オプチカ
ルファイバー１１にオプチカルファイバー９が接続され
、その他端は光→電気変換器に接続される。１２は回転
軸を支承する軸受である。In another embodiment (see FIG. 3), a windowed optical fiber 11 is disposed opposite to the ring-shaped leaky optical fiber 3 instead of the light receiving element, and an optical fiber 9 is connected to the windowed optical fiber 11. and the other end is connected to an optical to electrical converter. 12 is a bearing that supports the rotating shaft.
前記回転軸４に電気−光変換器を設置するに際しては回
転バランスが崩れないよ・うに特に注意を要し、例えば
第４図に示す如く軸方向に半割りなるホルダー４０に変
換素子４１とカウンターウェイト４２とを装着し、また
他の方法として第５図に示すように回転軸の中心に電気
−光変換器取付室５１を形成し、回転輪３の周囲３方向
から求心的にのびる変換器固定ねじ５２によって回転バ
ランスのよい位置に変換器５３を固定する。この際、固
定ねじが緩むことがないよう接着剤を塗布する。When installing the electro-optical converter on the rotating shaft 4, special care must be taken not to lose the rotational balance. For example, as shown in FIG. Alternatively, as shown in FIG. 5, an electro-optic converter mounting chamber 51 is formed at the center of the rotating shaft, and the converter extends centripetally from three directions around the rotating wheel 3. A fixing screw 52 fixes the converter 53 in a position with good rotational balance. At this time, apply adhesive to prevent the fixing screws from loosening.
次に本発明の作用について説明する。回転軸内で発生す
る温度、応力、圧力を熱電対、ワイヤストレンゲージな
どの電気量として検出したものは絶縁電気導体で電気→
光変換器１にて光信号に変換され、変換された光信号は
、オプチカルファイバー２を経てリング状の漏洩オプチ
カルファイバー３に導かれ、該漏洩オプチカルファイバ
ー３の表面から光信号は回転軸外に発信される。発信さ
れた光信号は受光素子８または窓付オプチカルファイバ
ー１１で受信され、該光信号はオプチカルファイバー９
を経て光→電気変換器１０に至る。光信号はここで電気
信号に変換され、指示または記録きれる。なお、受光素
子８は、第２図に示すごとく回転軸周上に複数設けるこ
とができる。Next, the operation of the present invention will be explained. Thermocouples, wire strain gauges, and other devices that detect the temperature, stress, and pressure generated within a rotating shaft as electrical quantities are electrically insulated electrical conductors →
The optical converter 1 converts the optical signal into an optical signal, and the converted optical signal is guided to a ring-shaped leaky optical fiber 3 via an optical fiber 2, and the optical signal is directed off the rotation axis from the surface of the leaky optical fiber 3. Sent. The emitted optical signal is received by the light receiving element 8 or the windowed optical fiber 11, and the optical signal is received by the optical fiber 9.
The light then reaches the electrical converter 10. Here, the optical signal is converted into an electrical signal that can be read or recorded. Note that a plurality of light receiving elements 8 can be provided around the rotation axis as shown in FIG.
また、電気−光変換の際に信号をデジタル化し、光デジ
タル信号として回転体外に取り出すこともできる。Furthermore, it is also possible to digitize the signal during electrical-optical conversion and take it out of the rotating body as an optical digital signal.
（効果）
以上の説明から明らかな通り回転軸から発信される信号
を無接触で取り出すのでスリップリングのごとく摩耗に
よる破損が生ずることがなく、高速回転軸においても長
時間安定して確実に信号を取り出すことができる。(Effects) As is clear from the above explanation, since the signals emitted from the rotating shaft are extracted without contact, there is no damage caused by wear unlike with slip rings, and the signal is stably and reliably transmitted for a long time even on high-speed rotating shafts. It can be taken out.
また、回転軸の外周に複数の漏洩オプチカルファイバー
を装着して任意のチャンネル数とすることができ、小型
軽量化が可能である。Further, by attaching a plurality of leaky optical fibers to the outer periphery of the rotating shaft, an arbitrary number of channels can be obtained, and the device can be made smaller and lighter.
更に、オプチカルファイバーを用いるので、外乱を拾う
こともなく、スリップリングのようにノイズの発生もな
く、微少信号でも、正確に取り出すことができる他、従
来のスリップリングのごとく消耗品的な取り扱いでなく
、繰り返し使用が可能で経済性においても多大の効果を
発揮するものである。Furthermore, since it uses optical fiber, it does not pick up disturbances, does not generate noise unlike slip rings, can accurately extract even minute signals, and can be handled as a consumable item like conventional slip rings. It can be used repeatedly and has great economical effects.
第１図は本発明の詳細な説明図、第２図は第１図の断面
図、第３図は本発明の他の実施例の説明図、第４図およ
び第５図は回転軸に電気−光変換器を装着する手段の説
明図である。
１・・・電気−光変換器、２，９・・・オプチカルファ
イバー、３・・・漏洩オプチカルファイバー、４・・・
回転軸、５・・・オプチカルファイバー装着手段、６・
・・遮蔽板、７・・・ボス、８・・・受光素子、１１・
・・窓付オプチカルファイバー、１０・・・光→電気変
換器。Fig. 1 is a detailed explanatory diagram of the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 3 is an explanatory diagram of another embodiment of the invention, and Figs. - an illustration of the means for mounting the light converter; DESCRIPTION OF SYMBOLS 1...Electro-optical converter, 2,9...Optical fiber, 3...Leaky optical fiber, 4...
Rotating shaft, 5... Optical fiber attachment means, 6.
... Shielding plate, 7... Boss, 8... Light receiving element, 11.
...Optical fiber with window, 10...Light to electricity converter.
Claims (3)
続されたオプチカルファイバーの他端を回転軸の外周に
リング状に形成した漏洩オプチカルファィバーに接続し
、該漏洩オプチカルファイバーの対向位置に受光素子を
配置し、該受光素子に接続したオプチカルファイバーの
他端を光→電気変換器に接続することを特徴とする回転
体からの信号取り出し方法。(1) An electrical to optical converter is provided on the rotating shaft, and the other end of the optical fiber connected to the converter is connected to a leaky optical fiber formed in a ring shape around the outer periphery of the rotating shaft, and the opposite end of the optical fiber is connected to the leaky optical fiber. 1. A method for extracting signals from a rotating body, comprising arranging a light receiving element at a position, and connecting the other end of an optical fiber connected to the light receiving element to an optical to electrical converter.
設けたリング状の漏洩オプチカルファイバー外面に沿っ
て窓つきオプチカルファイバーを配設することを特徴と
する回転体からの信号取り出し方法。(2) A method for extracting signals from a rotating body according to claim 1, characterized in that an optical fiber with a window is arranged along the outer surface of a ring-shaped leaky optical fiber provided on the outer periphery of a rotating shaft.
複数のリング状漏洩オプチカルファイバーを配設し、該
リング状漏洩オプチカルファイバーにそれぞれ受光素子
を配設することを特徴とする回転体からの信号取り出し
方法。(3) A rotating body according to claim 1, characterized in that a plurality of ring-shaped leaky optical fibers are arranged around the outer periphery of the rotating shaft, and a light receiving element is arranged in each of the ring-shaped leaky optical fibers. How to extract the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27782584A JPS61157999A (en) | 1984-12-29 | 1984-12-29 | Fetching of signal from rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27782584A JPS61157999A (en) | 1984-12-29 | 1984-12-29 | Fetching of signal from rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61157999A true JPS61157999A (en) | 1986-07-17 |
Family
ID=17588784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27782584A Pending JPS61157999A (en) | 1984-12-29 | 1984-12-29 | Fetching of signal from rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61157999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019114978A (en) * | 2017-12-25 | 2019-07-11 | 株式会社アウトスタンディングテクノロジー | Visible light transmission device |
-
1984
- 1984-12-29 JP JP27782584A patent/JPS61157999A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019114978A (en) * | 2017-12-25 | 2019-07-11 | 株式会社アウトスタンディングテクノロジー | Visible light transmission device |
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