JPS63135128U - - Google Patents
Info
- Publication number
- JPS63135128U JPS63135128U JP2675387U JP2675387U JPS63135128U JP S63135128 U JPS63135128 U JP S63135128U JP 2675387 U JP2675387 U JP 2675387U JP 2675387 U JP2675387 U JP 2675387U JP S63135128 U JPS63135128 U JP S63135128U
- Authority
- JP
- Japan
- Prior art keywords
- light
- angle prism
- rotating
- rotating body
- photoelectric converter
- 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
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図及び第２図は本考案の一実施例を示すも
ので、第１図は全体構成を示す図、第２図は計測
によつて得られる振動波形と周波数フイルタ通過
後の波形を示す図、第３図乃至第７図は従来の回
転体振動計測装置を説明するための図である。
１……直角プリズム、４……回転体、２２……
レーザビーム、２３……回転体回転軸、２４……
プリズム回転軸、２９……光電変換器、３５……
周波数トラツキングフイルタ。
Figures 1 and 2 show an embodiment of the present invention, with Figure 1 showing the overall configuration and Figure 2 showing the vibration waveform obtained by measurement and the waveform after passing through a frequency filter. 3 to 7 are diagrams for explaining a conventional rotating body vibration measuring device. 1...Right angle prism, 4...Rotating body, 22...
Laser beam, 23...Rotating body rotation axis, 24...
Prism rotation axis, 29...Photoelectric converter, 35...
Frequency tracking filter.
Claims (1)
、このパルスレーザ光を物体光と参照光とに２分
するスプリツタと、 上記物体光を軸心回りに回転する被検回転体へ
該軸心と角度を有して入射させる第１の入射手段
と、 上記物体光の被検回転体からの反射経路に斜面
を向けて配置される直角プリズムと、 この直角プリズムを上記被回転体の１／２の角
速度で回転させる回転手段と、 上記直角プリズムを通過した物体光により露光
される写真乾板と、 上記参照光を上記写真乾板に入射させる第２の
入射手段とを有する回転体振動計測装置において
、 上記直角プリズムを介してその回転軸方向にレ
ーザビームを照射する照射手段と、 上記レーザビームの被検回転体からの反射光を
上記直角プリズムを介して受光する光電変換器と
、 上記レーザビームを直角プリズムに入射する前
に分割し、かつ、上記光電変換器へ入射する第３
の入射手段と、 上記光電変換器からの出力波形より回転周期に
一致した周波数成分のみを通過させる周波数トラ
ツキングフイルタと を具備したことを特徴とする回転体振動計測装置
。[Claims for Utility Model Registration] A pulsed laser device that emits pulsed laser light, a splitter that splits the pulsed laser light into an object beam and a reference beam, and a rotation object that rotates the object beam around its axis. a first incidence means for causing the light to enter the body at an angle with the axis; a right-angle prism disposed with an inclined surface facing the reflection path of the object light from the rotating body to be detected; A rotating device comprising a rotating means for rotating at 1/2 the angular speed of the rotating body, a photographic plate exposed to the object light that has passed through the right-angle prism, and a second incident means for making the reference light incident on the photographic plate. In the body vibration measuring device, an irradiation unit that irradiates a laser beam in the direction of its rotation axis through the right-angle prism, and a photoelectric converter that receives reflected light of the laser beam from the rotating body to be measured through the right-angle prism. and a third beam that splits the laser beam before entering the right angle prism and enters the photoelectric converter.
A rotating body vibration measuring device comprising: an input means; and a frequency tracking filter that passes only frequency components matching the rotation period from the output waveform from the photoelectric converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2675387U JPS63135128U (en) | 1987-02-25 | 1987-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2675387U JPS63135128U (en) | 1987-02-25 | 1987-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63135128U true JPS63135128U (en) | 1988-09-05 |
Family
ID=30828130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2675387U Pending JPS63135128U (en) | 1987-02-25 | 1987-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63135128U (en) |
-
1987
- 1987-02-25 JP JP2675387U patent/JPS63135128U/ja active Pending
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