JPS6262277U - - Google Patents
Info
- Publication number
- JPS6262277U JPS6262277U JP15295985U JP15295985U JPS6262277U JP S6262277 U JPS6262277 U JP S6262277U JP 15295985 U JP15295985 U JP 15295985U JP 15295985 U JP15295985 U JP 15295985U JP S6262277 U JPS6262277 U JP S6262277U
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- light
- frequency
- beam irradiation
- interference light
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Description
第１図は本考案第１実施例の相対変位速度測定
装置の構成図、第２図イはレーザ光のドツプラシ
フトを示すグラフ、ロは干渉した電気信号の混合
処理を説明するためのグラフ、第３図は第２実施
例の相対変位速度測定装置の構成図を表わす。
１，２，２３，２４……レーザ光照射部、１０
，２８……光結合器、１４，２９……光電変換器
、１６，３０……フイルタ回路、１８，３１……
周波数測定器。
Fig. 1 is a block diagram of the relative displacement velocity measuring device according to the first embodiment of the present invention, Fig. 2 A is a graph showing the Doppler shift of laser light, B is a graph for explaining the mixing process of interfering electrical signals, and Fig. 2 is a graph showing the Doppler shift of laser light. FIG. 3 shows a configuration diagram of the relative displacement speed measuring device of the second embodiment. 1, 2, 23, 24...laser light irradiation section, 10
, 28... Optical coupler, 14, 29... Photoelectric converter, 16, 30... Filter circuit, 18, 31...
Frequency measuring instrument.
Claims (1)
手段と、 上記一方のレーザ光照射手段にて、照射された
レーザ光の反射光と元のレーザ光とから生成した
干渉光又は相互に異なつた状態で照射された２本
のレーザ光の反射光同士から生成した干渉光と、
上記他方のレーザ光照射手段にて同様に生成した
干接光と、を重ね合わせる光結合手段と、 上記重ね合わされた干渉光の強度を電気信号に
変換する光電変換手段と、 上記光電変換手段から出力される電気信号の内
、上記干渉光の周波数の差に該当する所定の信号
を通過させるフイルタ手段と、 上記フイルタ手段を通過した信号の周波数を測
定する周波数測定手段と、 を備えたことを特徴とする相対変位速度測定装置
。[Scope of Claim for Utility Model Registration] Two laser beam irradiation means that irradiate two measured points, and one laser beam irradiation means that generates light from the reflected light of the irradiated laser beam and the original laser beam. or interference light generated from reflected light of two laser beams irradiated in different states,
an optical coupling means for superimposing the interfering light similarly generated by the other laser beam irradiation means; a photoelectric conversion means for converting the intensity of the superimposed interference light into an electrical signal; A filter means for passing a predetermined signal corresponding to the difference in frequency of the interference light among the output electric signals, and a frequency measuring means for measuring the frequency of the signal that has passed the filter means. Features: Relative displacement speed measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15295985U JPS6262277U (en) | 1985-10-05 | 1985-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15295985U JPS6262277U (en) | 1985-10-05 | 1985-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6262277U true JPS6262277U (en) | 1987-04-17 |
Family
ID=31071411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15295985U Pending JPS6262277U (en) | 1985-10-05 | 1985-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6262277U (en) |
-
1985
- 1985-10-05 JP JP15295985U patent/JPS6262277U/ja active Pending
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