JPS62189643U - - Google Patents
Info
- Publication number
- JPS62189643U JPS62189643U JP7774886U JP7774886U JPS62189643U JP S62189643 U JPS62189643 U JP S62189643U JP 7774886 U JP7774886 U JP 7774886U JP 7774886 U JP7774886 U JP 7774886U JP S62189643 U JPS62189643 U JP S62189643U
- Authority
- JP
- Japan
- Prior art keywords
- crack
- optical sensor
- scans
- length
- light beam
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
第１図は本考案によるクラツク長さ測定装置の
一実施例を示す構成図、第２図は第１図に示した
実施例における円筒体を拡大して示す斜視図、第
３図は同じく第１図に示した実施例における信号
処理部で得られる電気信号を示す波形図である。
１：光照射手段、２：テストピース、３：光セ
ンサ、４：信号処理部、５：クラツク、１１：光
源、１２：クラツク幅方向走査機、１３：クラツ
ク長さ方向走査機、１４：円筒体、１５：反射条
、１６：回転駆動モータ、１７：幅方向走査ドラ
イバ、１８：反射光集光レンズ系、２０：Ａ／Ｄ
コンバータ、２１：マイクロプロセツサ、２２：
メモリ。
FIG. 1 is a block diagram showing an embodiment of the crack length measuring device according to the present invention, FIG. 2 is an enlarged perspective view of the cylindrical body in the embodiment shown in FIG. 1, and FIG. FIG. 2 is a waveform diagram showing electrical signals obtained by the signal processing section in the embodiment shown in FIG. 1; 1: Light irradiation means, 2: Test piece, 3: Optical sensor, 4: Signal processing unit, 5: Crack, 11: Light source, 12: Crack width direction scanner, 13: Crack length direction scanner, 14: Cylindrical body, 15: reflective strip, 16: rotation drive motor, 17: width direction scanning driver, 18: reflected light condensing lens system, 20: A/D
Converter, 21: Microprocessor, 22:
memory.
Claims (1)
ツクの幅方向に所定の周期で走査しかつクラツク
の長さ方向に沿つて走査するよう照射する光照射
手段と、照射された光ビームの反射光を検知する
光センサと、その光センサで得られる出力信号を
クラツクの発生部と非発生部とで比較しクラツク
の長さを算出する信号処理部とを有することを特
徴とするクラツク長さ測定装置。 A light irradiation means that scans a light beam in the width direction of the crack at a predetermined period and scans it along the length direction of the crack toward a predicted crack occurrence location, and detects the reflected light of the irradiated light beam. What is claimed is: 1. A crack length measuring device comprising: an optical sensor for detecting a crack; and a signal processing section for calculating the length of a crack by comparing an output signal obtained by the optical sensor between a crack occurrence area and a non-occurrence area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7774886U JPS62189643U (en) | 1986-05-22 | 1986-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7774886U JPS62189643U (en) | 1986-05-22 | 1986-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189643U true JPS62189643U (en) | 1987-12-02 |
Family
ID=30926046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7774886U Pending JPS62189643U (en) | 1986-05-22 | 1986-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189643U (en) |
-
1986
- 1986-05-22 JP JP7774886U patent/JPS62189643U/ja active Pending
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