JPS6477703A - Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine - Google Patents
Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machineInfo
- Publication number
- JPS6477703A JPS6477703A JP23228387A JP23228387A JPS6477703A JP S6477703 A JPS6477703 A JP S6477703A JP 23228387 A JP23228387 A JP 23228387A JP 23228387 A JP23228387 A JP 23228387A JP S6477703 A JPS6477703 A JP S6477703A
- Authority
- JP
- Japan
- Prior art keywords
- clearance
- laser beam
- rotor blade
- top edge
- axial
- 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
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To measure clearance between a rotor blade and a casing in a simple and inexpensive way by applying a laser beam to the clearance through a probe or the like and shifting the position of the laser beam. CONSTITUTION:A laser beam 15 radiated from a laser 8 is focused by a beam condenser 7 so as to be transmitted to a probe 4. In this case, a prism 11 to make the laser beam 15 parallel to a casing 3, and a cylindrical lens 12 to fanwise diffuse a laser beam 13, are build in the probe 4. Then the incidence position of a laser beam 14 upon a prism 11 is shifted so as to radially change the position of fanlike thin membraneous light 10 by shifting an optical system 5 in axial direction. Consequently, a clearance between the top edge of a rotor blade 1 and the casing 3 can be measured from an observation window 9 according to the position of the membraneous light 10 in radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23228387A JPS6477703A (en) | 1987-09-18 | 1987-09-18 | Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23228387A JPS6477703A (en) | 1987-09-18 | 1987-09-18 | Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6477703A true JPS6477703A (en) | 1989-03-23 |
Family
ID=16936798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23228387A Pending JPS6477703A (en) | 1987-09-18 | 1987-09-18 | Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6477703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100859239B1 (en) * | 2006-12-27 | 2008-09-18 | 한국원자력연구원 | Plane light transformation apparatus and flow system having the same |
| US8419751B2 (en) | 2003-03-17 | 2013-04-16 | Sumitomo Bakelite Company, Limited | Clip and clipping instrument for biological tissues |
-
1987
- 1987-09-18 JP JP23228387A patent/JPS6477703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8419751B2 (en) | 2003-03-17 | 2013-04-16 | Sumitomo Bakelite Company, Limited | Clip and clipping instrument for biological tissues |
| KR100859239B1 (en) * | 2006-12-27 | 2008-09-18 | 한국원자력연구원 | Plane light transformation apparatus and flow system having the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI892331A0 (en) | MAETNING AV KURVATUR I ETT GENOMSYNLIGT ELLER GENOMSKINLIGT MATERIAL. | |
| SE7514389L (en) | PROCEDURE FOR OPTO-ELECTRONIC POSITION SENSORING AND INSPECTION AND FOR THE PERFORMANCE OF THE PROCEDURE DEVICE | |
| RU98115308A (en) | DEVICE FOR TURBINE RADIAL GAP CONTROL | |
| US3895872A (en) | Optical speed-measuring devices and methods for maximizing their accuracies | |
| SE7702732L (en) | DEVICE FOR PHOTOMETRING A SUBSTANCE EXISTING IN A CYLINDRICAL CIVET | |
| JPS6477703A (en) | Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine | |
| KR880014364A (en) | Inorganic element concentration measuring device | |
| FR2425065A1 (en) | Optical system for measuring surface reflectance properties - has optical elements aligned close to surface normal (OE 15.10.79) | |
| JPS6461622A (en) | Temperature measuring instrument | |
| JPS5639190A (en) | Laser processing machine | |
| SU991151A1 (en) | Radial shift interferometer | |
| SU706571A2 (en) | Centrifugal compressor membrane | |
| JP2003518254A (en) | Method for generating a time marker at any point on a moving component and an optical trigger device for implementing the method | |
| JPS5653423A (en) | Measuring method for propagation speed of ultrasonic wave | |
| EP0151015A3 (en) | Apparatus for sensing strain in a transparent fibre | |
| SU664496A1 (en) | Interference method of measuring taper of transparent plates | |
| SU772361A1 (en) | Device for balancing rotors | |
| SU1446464A1 (en) | Device for checking parallelism of the axes of two coaxial bores | |
| SU673895A1 (en) | Hephelometer | |
| JPS56110029A (en) | Monitoring device for torsion stress of shaft | |
| SU646199A1 (en) | Method of measuring oscillation of turbo-compressor hinged blades | |
| KR960024285A (en) | Solid-state laser gyroscope with stabilized output signal using optical filter | |
| SU1315798A1 (en) | Device for measuring diameters of wood stock | |
| SU1308829A1 (en) | Method of measuring thickness of crystal wafer | |
| JPS57166504A (en) | Method for measuring axial core oscillation of rotating shaft |