JPH0485110U - - Google Patents
Info
- Publication number
- JPH0485110U JPH0485110U JP12681890U JP12681890U JPH0485110U JP H0485110 U JPH0485110 U JP H0485110U JP 12681890 U JP12681890 U JP 12681890U JP 12681890 U JP12681890 U JP 12681890U JP H0485110 U JPH0485110 U JP H0485110U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- phase modulator
- fiber loop
- photodetector
- 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 7
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Gyroscopes (AREA)
Description
第１図は本考案の一実施例に係る光フアイバジ
ヤイロの構成を示す図、第２図は位相変調器の構
造を示す断面図、第３図は位相変調器のシリンダ
８１の斜視図である。
１……光源（発光素子）、２……光フアイバ、
２ａ……光フアイバループ、６……光検出器、８
……位相変調器、９……ロツクイン検出器、１２
……ケース。
FIG. 1 is a diagram showing the configuration of an optical fiber gyro according to an embodiment of the present invention, FIG. 2 is a sectional view showing the structure of a phase modulator, and FIG. 3 is a perspective view of a cylinder 81 of the phase modulator. 1... Light source (light emitting element), 2... Optical fiber,
2a... Optical fiber loop, 6... Photodetector, 8
... Phase modulator, 9 ... Lock-in detector, 12
……Case.
Claims (1)
され左回り及び右回りの光として導入される光フ
アイバループと、この光フアイバループからの出
力光を検知する光検出器と、前記光フアイバルー
プを導波する光の位相を高周波交流電圧にて変調
する位相変調器と、前記光検出器に接続され前記
位相変調器の変調周波数に同期した信号を検出し
出力するロツクイン検出器を有する光フアイバジ
ヤイロにおいて、前記位相変調器を電磁シールド
するケースを設けたことを特徴とする光フアイバ
ジヤイロ。 A light emitting element, an optical fiber loop into which light emitted from the light emitting element is branched and introduced as counterclockwise and clockwise light, a photodetector for detecting output light from the optical fiber loop, and the optical fiber loop. A phase modulator that modulates the phase of light guided by a high-frequency AC voltage, and a lock-in detector that is connected to the photodetector and detects and outputs a signal synchronized with the modulation frequency of the phase modulator. An optical fiber gyroscope characterized in that a case is provided for electromagnetically shielding the phase modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12681890U JPH0485110U (en) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12681890U JPH0485110U (en) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485110U true JPH0485110U (en) | 1992-07-23 |
Family
ID=31874350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12681890U Pending JPH0485110U (en) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485110U (en) |
-
1990
- 1990-11-29 JP JP12681890U patent/JPH0485110U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6428515A (en) | Interference sensor for sensing surrounding effect and method thereof | |
| CA2048337A1 (en) | Optical waveguide amplifier source gyroscope | |
| DE3277466D1 (en) | Interferometer with kerr effect compensation | |
| JP2993678B2 (en) | Optical fiber gyroscope | |
| JPH0426337U (en) | ||
| JPS6393527U (en) | ||
| JPH0448654U (en) | ||
| JPS61190874U (en) | ||
| RU97108203A (en) | OPTICAL GYROSCOPE WITH PASSIVE RING RESONATOR | |
| JPH0479458U (en) | ||
| JPH0247074U (en) | ||
| JPS60111204U (en) | Fiber optic displacement meter | |
| JPH0286232U (en) | ||
| JPS62109138U (en) | ||
| JPS61147918U (en) | ||
| JPS6316789U (en) | ||
| JPS6341102U (en) | ||
| JPS6452098U (en) | ||
| JPS6451838U (en) | ||
| JPS62156839U (en) | ||
| JPH01171302U (en) | ||
| JPH0325107U (en) | ||
| JPH01166399U (en) | ||
| JPH01162162U (en) | ||
| Dandridge et al. | Demodulation Schemes For Fibre Optic Sensors |