JPS57166504A - Method for measuring axial core oscillation of rotating shaft - Google Patents
Method for measuring axial core oscillation of rotating shaftInfo
- Publication number
- JPS57166504A JPS57166504A JP5179881A JP5179881A JPS57166504A JP S57166504 A JPS57166504 A JP S57166504A JP 5179881 A JP5179881 A JP 5179881A JP 5179881 A JP5179881 A JP 5179881A JP S57166504 A JPS57166504 A JP S57166504A
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- photodetected
- elements
- axial core
- reflected
- 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
- 230000010355 oscillation Effects 0.000 title abstract 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To measure the axial core oscillation of a high-speed rotating shaft without contacting by detecting the fine displacement of the reflected beam of laser beam, illuminating the rotating shaft, from a difference in the quantity of photodetected beam between two photodetectors. CONSTITUTION:A laser beam 4 from beam sources 2 and 3 is reflected by a rotating shaft 1 and its reflected beam 5 is photodetected by a photodetector 6. The photodetector 6 has two photodetecting elements 9a and 9b and are so arranged that when the rotating shaft is still, the spot of the reflected beam 5 is positioned between both the elements. Therefore, the quantities of beam photodetected by both the elements are equal. When the rotating shaft oscillates owing to its axial center oscillation in accordance with the rotation of the rotating shaft, the point of reflection is shifted and there is a difference in the quantity of photodetected beam between both the elements 9a and 9b. Signals that correspond to those quantities of photodetected beam and amplified by an amplfier 7 and a deviation measuring instrument measures a difference between both the signals to measure the degree of the axial core oscillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179881A JPS57166504A (en) | 1981-04-08 | 1981-04-08 | Method for measuring axial core oscillation of rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179881A JPS57166504A (en) | 1981-04-08 | 1981-04-08 | Method for measuring axial core oscillation of rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57166504A true JPS57166504A (en) | 1982-10-14 |
Family
ID=12896943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5179881A Pending JPS57166504A (en) | 1981-04-08 | 1981-04-08 | Method for measuring axial core oscillation of rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764952A (en) * | 2019-01-24 | 2019-05-17 | 甘特科技(北京)有限公司 | A kind of detection of dither axis, rotating speed measurement method and device |
-
1981
- 1981-04-08 JP JP5179881A patent/JPS57166504A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764952A (en) * | 2019-01-24 | 2019-05-17 | 甘特科技(北京)有限公司 | A kind of detection of dither axis, rotating speed measurement method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI892331A (en) | MAETNING AV KURVATUR I ETT GENOMSYNLIGT ELLER GENOMSKINLIGT MATERIAL. | |
| US4655597A (en) | Micro-displacement measuring apparatus using a semiconductor laser | |
| EP0186802A3 (en) | Optical measurement device | |
| JPS57166504A (en) | Method for measuring axial core oscillation of rotating shaft | |
| US4611916A (en) | Optical measuring apparatus | |
| EP0380046A3 (en) | Method for testing counters, in particular electricity, water or gas meters, and device for carrying out this method | |
| JPS56111407A (en) | Shaft torsion detecting method | |
| JPS57149912A (en) | Optical position detector | |
| JPS56111419A (en) | Optical position detector | |
| JPS6488516A (en) | Detector for quantity of fluctuation of optical beam of optical scanner | |
| EP0050144B1 (en) | Process for measuring motion- and surface characterizing physical parameters of a moving body | |
| SU626413A1 (en) | Method of measuring linear velocity of relative movement objects | |
| JPS578969A (en) | Recording and reproducing device | |
| DE69421992T2 (en) | Device for optically measuring the speed of rotation of an object | |
| JPS6477703A (en) | Measuring instrument for clearance at rotor blade top edge in axial-flow fluidic machine | |
| JPS6413233A (en) | Recording medium driving system | |
| SU862229A1 (en) | Device for measuring tape drive mechanism parameters | |
| SU1620829A1 (en) | Photometric method of measuring taper angle of part | |
| JPS6457425A (en) | Optical disk | |
| JPS56141562A (en) | Detection for uneven rotation of rotatable body | |
| JPS6459110A (en) | Angle of rotation measuring apparatus | |
| SU1379624A1 (en) | Photometric method of measuring dimensions | |
| SU1557523A1 (en) | Device for measuring diameter of filament | |
| SU696385A1 (en) | Angular speed variation measuring device | |
| SE414225B (en) | Arrangement for dimension measuring by means of a laser beam |