JPS61158829U - - Google Patents
Info
- Publication number
- JPS61158829U JPS61158829U JP4371985U JP4371985U JPS61158829U JP S61158829 U JPS61158829 U JP S61158829U JP 4371985 U JP4371985 U JP 4371985U JP 4371985 U JP4371985 U JP 4371985U JP S61158829 U JPS61158829 U JP S61158829U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- polarization
- beam splitter
- external force
- 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 claims description 15
- 230000010287 polarization Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図は本考案の光フアイバ形振動計の一実施
例を示す構成図、第２図は第１図の外力印加部の
一実施例を示す構成図である。
１：レーザダイオード、２：ビームスプリツタ
、３：偏光ビームスプリツタ、４：偏波面保存光
フアイバ５：ミラーコート、６：外力印加部、７
：金属体、８：弾性体、９ａ，９ｂ：受光素子、
１０：演算回路。
FIG. 1 is a block diagram showing an embodiment of the optical fiber type vibrometer of the present invention, and FIG. 2 is a block diagram showing an embodiment of the external force application section of FIG. 1. 1: Laser diode, 2: Beam splitter, 3: Polarizing beam splitter, 4: Polarization preserving optical fiber 5: Mirror coat, 6: External force applying section, 7
: metal body, 8: elastic body, 9a, 9b: light receiving element,
10: Arithmetic circuit.
補正 昭６０．８．２８
図面の簡単な説明を次のように補正する。
明細書第９頁第４行の「偏波面保存光フアイバ
５」を「偏波面保存光フアイバ、５」と訂正する
。Amendment August 28, 1980 The brief description of the drawing is amended as follows. "Polarization-maintaining optical fiber 5" on page 9, line 4 of the specification is corrected to "polarization-maintaining optical fiber, 5."
Claims (1)
とビームスプリツタおよび偏光ビームスプリツタ
と、該偏光ビームスプリツタからの直線偏光を光
軸に対して４５°となるように入射する偏波面保
存光フアイバと、該偏波面保存光フアイバの他方
の先端にコーテイングした反射のためのミラーコ
ートと、前記偏波面保存光フアイバの先端部から
適当な長さの部分にかけて前記偏波面保存光フア
イバを挾み込むように設けた前記偏波面保存光フ
アイバの短軸に垂直な方向に外力を加える金属体
と弾性体とからなる外力印加部と、前記偏波面保
存光フアイバからの反射光を前記偏光ビームスプ
リツタを介して受光して光電変換する受光素子と
、該受光素子からの電気信号を入力して前記外力
に比例した出力を送出する演算回路とからなるこ
とを特徴とする光フアイバ形振動計。 (2) 前記光源はレーザダイオードである実用新
案登録請求の範囲第１項記載の光フアイバ形振動
計。 (3) 前記受光素子は、前記偏光ビームスプリツ
タを介して直交する２つの直線偏光に分離された
ものをそれぞれ受光して光電変換する２つの受光
素子からなり、前記演算回路は、前記２つの受光
素子からの電気信号を入力してそれらの差と和と
を求めて差を和で除算して外力に比例した出力を
送出するように構成してある実用新案登録請求の
範囲第１項または第２項記載の光フアイバ形振動
計。[Claims for Utility Model Registration] (1) A light source, and if the light from the light source is linearly polarized, a beam splitter, and a polarizing beam splitter, and the linearly polarized light from the polarizing beam splitter is a polarization-maintaining optical fiber that enters the polarization-maintaining optical fiber so that the polarization-maintaining optical fiber is incident on the other end of the polarization-maintaining optical fiber, a mirror coat for reflection coated on the other end of the polarization-maintaining optical fiber, and a an external force applying section made of a metal body and an elastic body that applies an external force in a direction perpendicular to the short axis of the polarization preserving optical fiber, which is provided so as to sandwich the polarization preserving optical fiber; Consisting of a light receiving element that receives reflected light from the optical fiber via the polarizing beam splitter and converts it into electricity, and an arithmetic circuit that receives an electrical signal from the light receiving element and sends out an output proportional to the external force. An optical fiber type vibration meter characterized by the following. (2) The optical fiber vibrometer according to claim 1, wherein the light source is a laser diode. (3) The light-receiving element is composed of two light-receiving elements that each receive light separated into two orthogonal linearly polarized lights via the polarization beam splitter and photoelectrically convert the light, and the arithmetic circuit Utility model registration claim 1, which is configured to input electric signals from a light receiving element, calculate their difference and sum, divide the difference by the sum, and send out an output proportional to the external force, or The optical fiber type vibrometer according to item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4371985U JPS61158829U (en) | 1985-03-26 | 1985-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4371985U JPS61158829U (en) | 1985-03-26 | 1985-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61158829U true JPS61158829U (en) | 1986-10-02 |
Family
ID=30555643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4371985U Pending JPS61158829U (en) | 1985-03-26 | 1985-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158829U (en) |
-
1985
- 1985-03-26 JP JP4371985U patent/JPS61158829U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5090824A (en) | Fast optical switch having reduced light loss | |
| EP0368335A3 (en) | Polarization beam coupler adapted to produce output beam for monitoring | |
| JPS61158829U (en) | ||
| JPS5953209U (en) | optical length measurement scale | |
| JPH0222503A (en) | Laser interference measuring instrument | |
| JP2001004671A (en) | Optical fiber sensor | |
| JPS5945506U (en) | optical length measurement scale | |
| JPS61149836A (en) | Pressure measuring instrument | |
| JP2582116B2 (en) | Hikaribaiyairo | |
| JPS6112006U (en) | Michelson interferometer using polarization preserving optical fiber | |
| JPH056539Y2 (en) | ||
| JPH041718A (en) | Optical collimator and optical coupling parts | |
| JPS59154333A (en) | Optical fiber type pressure sensor | |
| JPH02281211A (en) | Optical collimator and optical coupling parts | |
| JP2559511Y2 (en) | Length reference device | |
| JPS61175517A (en) | Optical fiber ring interferometer | |
| JPS6120811A (en) | Optical fiber interferometer | |
| JPH01116522A (en) | Optical directional coupler | |
| JPH0432054U (en) | ||
| JPS6314305B2 (en) | ||
| JPS5931067U (en) | Polarization preserving optical fiber type magnetic field sensor | |
| JPS6073604A (en) | Photocoupler | |
| JPH0374309U (en) | ||
| JPS62232525A (en) | Acoustic sensor | |
| JPS61122530U (en) |