JPS643529A - Method for measuring internal stress of solid by photoelasticity - Google Patents
Method for measuring internal stress of solid by photoelasticityInfo
- Publication number
- JPS643529A JPS643529A JP15856787A JP15856787A JPS643529A JP S643529 A JPS643529 A JP S643529A JP 15856787 A JP15856787 A JP 15856787A JP 15856787 A JP15856787 A JP 15856787A JP S643529 A JPS643529 A JP S643529A
- Authority
- JP
- Japan
- Prior art keywords
- polarizers
- internal stress
- electromagnetic waves
- solid
- detector
- 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
Abstract
PURPOSE:To measure internal stress with high sensitivity by providing polarizers before and behind a material to be inspected on an optical path of electromagnetic waves, turning the polarizers in the main axis direction while maintaining an angle of odd times pi/2 and receiving and integrating the change of the transmitted electromagnetic waves. CONSTITUTION:The light projected from a light source 4 which generates the continuous electromagnetic waves transmits the two polarizers 2 and the material 1 to be inspected and enters a photodetector 6. The detector 6 is synchronously controlled by a controller 7 in order to be synchronized with the turning of the polarizers 2. The polarizers 2 are turned by the controller 7 via a motor M while the angle of even times pi/2 is maintained in the mutual main axis direction. The photodetector 6 receives the information on the change of the transmitted electromagnetic waves by turning of the polarizers 2 and sends the same to a detector 9. The detector 9 measures the internal stress of the solid 1 by integrating and computing the signal. The internal stress of the solid material is thereby measured with the high sensitivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856787A JPS643529A (en) | 1987-06-25 | 1987-06-25 | Method for measuring internal stress of solid by photoelasticity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856787A JPS643529A (en) | 1987-06-25 | 1987-06-25 | Method for measuring internal stress of solid by photoelasticity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643529A true JPS643529A (en) | 1989-01-09 |
Family
ID=15674516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15856787A Pending JPS643529A (en) | 1987-06-25 | 1987-06-25 | Method for measuring internal stress of solid by photoelasticity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643529A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5009308A (en) * | 1989-08-09 | 1991-04-23 | Multiform Desiccants, Inc. | Controlled rate adsorbent unit and method of fabrication thereof |
| US5148337A (en) * | 1990-09-20 | 1992-09-15 | Multiform Desiccants, Inc. | Controlled rate adsorbent and disc drive stabilizing unit |
| CN102520202A (en) * | 2011-12-15 | 2012-06-27 | 航天科工惯性技术有限公司 | Method for detecting pendulous reed stress of accelerometer |
-
1987
- 1987-06-25 JP JP15856787A patent/JPS643529A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5009308A (en) * | 1989-08-09 | 1991-04-23 | Multiform Desiccants, Inc. | Controlled rate adsorbent unit and method of fabrication thereof |
| US5148337A (en) * | 1990-09-20 | 1992-09-15 | Multiform Desiccants, Inc. | Controlled rate adsorbent and disc drive stabilizing unit |
| CN102520202A (en) * | 2011-12-15 | 2012-06-27 | 航天科工惯性技术有限公司 | Method for detecting pendulous reed stress of accelerometer |
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