JPS606811A - Strain observing device - Google Patents
Strain observing deviceInfo
- Publication number
- JPS606811A JPS606811A JP11377183A JP11377183A JPS606811A JP S606811 A JPS606811 A JP S606811A JP 11377183 A JP11377183 A JP 11377183A JP 11377183 A JP11377183 A JP 11377183A JP S606811 A JPS606811 A JP S606811A
- Authority
- JP
- Japan
- Prior art keywords
- light
- fiber cable
- strain
- lens
- transmitted
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】 この発明は全観測装置の改良に関するもので。[Detailed description of the invention] This invention relates to the improvement of all observation equipment.
詳しくは物体の歪を光伝搬路の屈曲による光伝送損失の
変化を利用して歪を検出する。全観測装置を提供するも
のである。Specifically, distortion in an object is detected using changes in optical transmission loss due to bending of the optical propagation path. It provides all observation equipment.
まず、従来の全観測装置を図を用いて簡単に説明する。First, all conventional observation devices will be briefly explained using diagrams.
第１図は従来の全観測装置の構成図゛で図中、（１）は
物体（例えばアンテナなど）ｉ２）はこの物体（１）に
接着されたストレインゲージ、（３）はこのストレイン
ゲージ（２）へワイヤ（４）Ｋより接続される処理回路
である。Figure 1 is a block diagram of the entire conventional observation device. 2) is a processing circuit connected to wire (4) K by wire (4).
この様な構成において、物体（１）Ｋ熱が加えられるな
どして歪みが生ずると、ストレインゲージ（２）も。In such a configuration, if the object (1) becomes strained due to heat being applied to it, the strain gauge (2) will also be strained.
物体（１）に付随して歪むから、その抵抗値が変化する
。この抵抗値の変化を上記処理回路（３）で測定するこ
とによって物体（１）の歪みを測定することができる。Since the object (1) is distorted, its resistance value changes. By measuring this change in resistance value using the processing circuit (3), the distortion of the object (1) can be measured.
このような全観測装置は人工衛星等の宇宙飛しょう体に
搭載され７ アンテナ等の歪みを観測するために使用さ
れている。All such observation devices are mounted on spacecraft such as artificial satellites and are used to observe distortions in antennas, etc.
しかしながら従来のこの種装置においては、ストレイン
ゲージ（２）と物体（１）との接着に問題があり。However, in conventional devices of this type, there is a problem in adhesion between the strain gauge (2) and the object (1).
物体ｆｉ＋の歪みにストレインゲージ（２）が正しく対
応しない不具合が生じやすい。特に熱的環境の厳しい人
工衛星にストレインゲージ（２）を用いるとき。A problem is likely to occur in which the strain gauge (2) does not correctly respond to the distortion of the object fi+. Especially when using the strain gauge (2) on an artificial satellite with a harsh thermal environment.
しばしば物体（１）とストレインゲージ（２１の接着が
。Often the object (1) and the strain gauge (21) are bonded together.
バカれるという不具合が発生した。このためストレイン
ゲージ（２）を薄膜化して接着性を良くするなどの工夫
が行われているがいずれも上記問題を完全に解決するこ
とができず、この種装置の改良が望まれていた。A problem occurred where I was made a fool of. For this reason, attempts have been made to make the strain gauge (2) thinner to improve its adhesion, but none of these methods has been able to completely solve the above problem, and improvements to this type of device have been desired.
この発明はこの様な従来の歪観測装置における問題点を
改善するもので、以下図を用いて詳述する。第２図はこ
の発明の一実施例の構成図、第３図は歪検出器の構成図
、第４図は光信号処理機構の構成図である。The present invention is intended to improve the problems with such conventional strain observation devices, and will be described in detail below with reference to the drawings. FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is a block diagram of a distortion detector, and FIG. 4 is a block diagram of an optical signal processing mechanism.
図中（１）は物体（例えばアンテナの反射鏡）ｉ５１は
物体（１）に固着された歪検出器、（６）は光信号処理
機構で第１のファイバケーブル（７）及び複数のファイ
バを集束した第２のファイバケーブル（８）経由上記歪
検出器（５）へ接続される。（９）は上記第１のファイ
バケーブル（７）の一端の送光部で、その端面から光測
が放射される。ＱＯＩは送光部（９）の光軸上に置かれ
たレンズ（例えばロンドレンズ）、（１１１は上記送光
部（９）とレンズＯωを固定し、物体１１）に固着され
た基板、αのは上記第２のファイバケーブル（８）の末
端を２次元アレイに配列した受光部で物体（１）に固着
され上記レンズ（１０１に対向して置かれる。（１３）
は光源（例えば半導体レーザ）で光（１４１を発生する
。（１５）は上記第２のファイバケーブル（８）の他の
末端部をアレイ状に配列した投光部、０６）はこの投光
部（１９から送出される光Ｏａをレンズ０（１経由受光
して電気信号に変換する光電変換素子（例えばＣＣＤ）
ｉ１８１はこの光電変換素子（１Ｇ＋の出力信号をワイ
ヤ（１り経由受信しである一定のレベルで比較し、その
結果をワイヤαη経由送出するコンパレータである。In the figure, (1) is an object (for example, an antenna reflector), i51 is a strain detector fixed to the object (1), and (6) is an optical signal processing mechanism that connects the first fiber cable (7) and a plurality of fibers. It is connected to the strain detector (5) via a focused second fiber cable (8). (9) is a light transmitting section at one end of the first fiber cable (7), from which light is emitted. QOI is a lens placed on the optical axis of the light transmitting section (9) (for example, a Rondo lens), (111 is a substrate fixed to the object 11 which fixes the light transmitting section (9) and the lens Oω, and α This is a light receiving section in which the ends of the second fiber cable (8) are arranged in a two-dimensional array, which is fixed to the object (1) and placed opposite the lens (101).(13)
A light source (for example, a semiconductor laser) generates light (141). (15) is a light projecting section in which the other end of the second fiber cable (8) is arranged in an array, and 06 is this light projecting section. (A photoelectric conversion element (e.g. CCD) that receives the light Oa sent out from 19 via lens 0 (1) and converts it into an electrical signal.
i181 is a comparator that receives the output signal of this photoelectric conversion element (1G+) via a wire (1), compares it at a certain level, and sends the result via a wire αη.
なお、上記第１のファイバケーブル（７）、送光部（９
）。Note that the first fiber cable (7) and the light transmitting section (9
).
レンズａω、基板Ｏ１）、第２のファイバケーブル（８
）及び受光部（１２１で歪検出器（５）を構成し、上記
光源（１３１゜投光部（１５）、光電変換素子Ｏυ、レ
ンズ００）、ワイヤａ′７１及びコンパレータ（１８１
とで光信号処理機構（６）を構成している。lens aω, substrate O1), second fiber cable (8
) and light receiving section (121) constitute a distortion detector (5), the light source (131° light projecting section (15), photoelectric conversion element Oυ, lens 00), wire a'71 and comparator (181
and constitute an optical signal processing mechanism (6).
次にこの発明の詳細な説明する。第２図において歪検出
器（５）が物体（１）に固着しているから第１図のスト
レインゲージ（２）と同じように物体（１）の歪みが歪
検出器（５）に伝達される。Next, this invention will be explained in detail. In Figure 2, the strain detector (5) is fixed to the object (1), so the strain of the object (1) is transmitted to the strain detector (5) in the same way as the strain gauge (2) in Figure 1. Ru.
さて、第４図の光源０３）から送出された光＋１４１は
レンズ１０１で集束されて第１のファイバケーブル（７
）へ入射する。そして第３図の送光部（９）から光（１
４）をレンズ（則へ送出し、レンズ（１０）で集束した
後、受光部（１２＋へ入射させる。物体（１）に歪みの
無いとき上記光測は受光部０７Ｊの中央部に入射してい
るが、物体（１）に歪みが生じたとき基板（１１）と受
光部０７Ｊの位置関係が歪むから光（１躬ま受光部０２
土で変位する。Now, the light +141 sent out from the light source 03) in Fig. 4 is focused by the lens 101 and sent to the first fiber cable (7).
). Then, the light (1
4) is sent to the lens (10), and after being focused by the lens (10), it enters the light receiving section (12+).When the object (1) is not distorted, the above photometer enters the central part of the light receiving section 07J. However, when the object (1) is distorted, the positional relationship between the substrate (11) and the light receiving section 07J is distorted, so the light (1) is distorted.
Displaced by soil.
したがって、第４図において上記第２のファイバケーブ
ル（８）の投光部（１９から送出される光０４）は上記
受光部１２）上の変位に相当する位置に現われる。この
光（１句を光電変換素子によって光電変換し電気信号を
コンパレータ０８）に送出する。このコンパレータ（旧
において複数の光電変換素子Ｑ６１の上記電気信号を調
らべ、信号を出力している光電変換素子００）を特定す
れば上記物体（１）の歪みによる送光部（９）と受光部
ａｚ相互間の変位を検出することができる。Therefore, in FIG. 4, the light 04 transmitted from the light projecting section (19) of the second fiber cable (8) appears at a position corresponding to the displacement on the light receiving section 12). This light (one phrase) is photoelectrically converted by a photoelectric conversion element and an electric signal is sent to a comparator 08. If this comparator (in the old model, the photoelectric conversion element 00 that outputs the signal by examining the electrical signals of the plurality of photoelectric conversion elements Q61) is identified, it is the light transmitting part (9) caused by the distortion of the object (1). Displacement between the light receiving parts az can be detected.
以上説明したようにこの発明によれば送光部（９）と受
光部（１２＋が分離されているため、繰り返し発生する
物体（１）の歪みに対し９機械的に劣化することなく安
定した動作を行う事ができる。さらに送光部（９）と物
体（１）及び受光部Ｏりと物体（１）との固着部分に機
械的応力が加わらないから、はがれるという不具合が発
生しにくいという利点が生ずる。As explained above, according to the present invention, since the light transmitting section (9) and the light receiving section (12+) are separated, stable operation is achieved without mechanical deterioration even when the object (1) is repeatedly distorted. Furthermore, since no mechanical stress is applied to the fixed parts between the light transmitting section (9) and the object (1) and between the light receiving section and the object (1), problems such as peeling are less likely to occur. occurs.
第１図は従来の歪観測装置を示す構成図、第２図はこの
発明の一実施例を示す構成図、第３図はこの発明による
歪検出器の構成図、第４図はこの発明による光信号処理
機構の構成図である。図中（１）は物体、（２）はスト
レインゲージ、（３）は処理回路。
（４）はワイヤ、（５）は歪検出器、（６）は光信号処
理機構。
（７）は第１のファイバケーブル、（８）は第２のファ
イバケーブル、（９）は送光部、００）はレンズ、 ｆ
ｌｌ＋は基板。
Ｑ２＋は受光部、囮は光源、圓は光、 Ｑ５１は投光部
、０６）は光電変換素子、αηはワイヤ、 ｆ１８＋は
コンパレータである。
なお１図中同一または相当部分には同一符号を付して示
しである。
代理人大岩増雄
第１図
１
第２１閃Fig. 1 is a block diagram showing a conventional strain observation device, Fig. 2 is a block diagram showing an embodiment of the present invention, Fig. 3 is a block diagram of a strain detector according to the present invention, and Fig. 4 is a block diagram showing the structure of a strain detector according to the present invention. FIG. 3 is a configuration diagram of an optical signal processing mechanism. In the figure, (1) is the object, (2) is the strain gauge, and (3) is the processing circuit. (4) is a wire, (5) is a strain detector, and (6) is an optical signal processing mechanism. (7) is the first fiber cable, (8) is the second fiber cable, (9) is the light transmitting section, 00) is the lens, f
ll+ is the board. Q2+ is a light receiving section, a decoy is a light source, a circle is a light, Q51 is a light projecting section, 06) is a photoelectric conversion element, αη is a wire, and f18+ is a comparator. Note that the same or corresponding parts in FIG. 1 are designated by the same reference numerals. Agent Masuo Oiwa Figure 1 21st flash
Claims (1)
換して観測する全観測装置において、光を伝送する第１
のファイバケーブルと、この第１のファイバケーブルの
送光部の光軸上に置かれたレンズと、上記送光部とレン
ズを固定しかつ上記物体に固着された基板と、上記レン
ズに対向しかつ上記物体に固着され上記送光部からの光
を受光する第２のファイバケーブルとで上記歪検出器を
構成し、この歪検出器に上記光を上記第１のファイバケ
ーブル経由送出し、上記第２のファイバケーブルの受光
部で受光した光信号を処理する光信号処理部を備えたこ
とを特徴とする全観測装置。In all observation devices that observe the distortion of an object by replacing it with the deformation of a strain detector fixed to the object, the first
a fiber cable, a lens placed on the optical axis of the light transmitting section of the first fiber cable, a substrate that fixes the light transmitting section and the lens and is fixed to the object, and a substrate facing the lens. and a second fiber cable fixed to the object and configured to receive light from the light transmitting section, the strain detector is configured to transmit the light to the strain detector via the first fiber cable, A total observation device characterized by comprising an optical signal processing section that processes an optical signal received by a light receiving section of a second fiber cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11377183A JPS606811A (en) | 1983-06-24 | 1983-06-24 | Strain observing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11377183A JPS606811A (en) | 1983-06-24 | 1983-06-24 | Strain observing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS606811A true JPS606811A (en) | 1985-01-14 |
Family
ID=14620713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11377183A Pending JPS606811A (en) | 1983-06-24 | 1983-06-24 | Strain observing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088285A3 (en) * | 2003-03-07 | 2004-12-23 | Boxboro Systems Llc | Optical determination of changes in the shape of an object and of the fluid flow around an object |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5690487A (en) * | 1979-12-03 | 1981-07-22 | Western Electric Co | Magnetic bubble memory |
| JPS5740791A (en) * | 1980-08-25 | 1982-03-06 | Fujitsu Ltd | High-density bubble memory element |
-
1983
- 1983-06-24 JP JP11377183A patent/JPS606811A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5690487A (en) * | 1979-12-03 | 1981-07-22 | Western Electric Co | Magnetic bubble memory |
| JPS5740791A (en) * | 1980-08-25 | 1982-03-06 | Fujitsu Ltd | High-density bubble memory element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004088285A3 (en) * | 2003-03-07 | 2004-12-23 | Boxboro Systems Llc | Optical determination of changes in the shape of an object and of the fluid flow around an object |
| US7403294B2 (en) | 2003-03-07 | 2008-07-22 | Boxboro Systems, Llc | Optical measurement device and method |
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