JPS56158903A - Measuring method for cleavage length - Google Patents
Measuring method for cleavage lengthInfo
- Publication number
- JPS56158903A JPS56158903A JP6356680A JP6356680A JPS56158903A JP S56158903 A JPS56158903 A JP S56158903A JP 6356680 A JP6356680 A JP 6356680A JP 6356680 A JP6356680 A JP 6356680A JP S56158903 A JPS56158903 A JP S56158903A
- Authority
- JP
- Japan
- Prior art keywords
- cleavage
- length
- memory
- binary
- prescribed
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
Abstract
PURPOSE:To measure the length of a cleavage automatically with high precision by detecting the same surface of a body to be measured as many partial areas by image sensors 2 and by storing binary-coded signals of the surfaces in a memory. CONSTITUTION:Through holes 21 and 22 of a body 12 to be measured, pins 41 and 42 are passed and a tensile load is applied repeatedly in the Y direction. The surface of a sample is scanned and detected by a camera 4 having line sensors arrayed in the Y direction. The camera 4 is fixed at a prescribed Z-directional position through a manual operator 13, interface 10 and controller 11 and moved in the X direction by a prescribed value l6 each through a table 1. The center of a detection sensor is aligned to a cleavage tip Q1 after prescribed energizing and the binary- coded signal of a picture in a concerning area 30 is stored in a memory M2. Then, the binary-coded signal of a concerning area 37 after the next energizing is also stored in a memory M1. On the basis of both the contents, the length of a cleavage is found. This operation is repeated to measure the length of the cleavage 26 automatically with high precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6356680A JPS6046362B2 (en) | 1980-05-13 | 1980-05-13 | Crack length measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6356680A JPS6046362B2 (en) | 1980-05-13 | 1980-05-13 | Crack length measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56158903A true JPS56158903A (en) | 1981-12-08 |
| JPS6046362B2 JPS6046362B2 (en) | 1985-10-15 |
Family
ID=13232911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6356680A Expired JPS6046362B2 (en) | 1980-05-13 | 1980-05-13 | Crack length measurement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6046362B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014157038A (en) * | 2013-02-14 | 2014-08-28 | Toyota Motor Corp | Apparatus and program for automatically measuring fatigue crack of object to be measured |
-
1980
- 1980-05-13 JP JP6356680A patent/JPS6046362B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014157038A (en) * | 2013-02-14 | 2014-08-28 | Toyota Motor Corp | Apparatus and program for automatically measuring fatigue crack of object to be measured |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6046362B2 (en) | 1985-10-15 |
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