JPH0178944U - - Google Patents
Info
- Publication number
- JPH0178944U JPH0178944U JP1987175076U JP17507687U JPH0178944U JP H0178944 U JPH0178944 U JP H0178944U JP 1987175076 U JP1987175076 U JP 1987175076U JP 17507687 U JP17507687 U JP 17507687U JP H0178944 U JPH0178944 U JP H0178944U
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- covered
- recorder
- upper opening
- electrical resistance
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案き裂検出装置を平滑面のき裂検
出に適用した一実施例を示す装置全体斜視図、第
２図は第１図における検出セルの詳細を示す縦断
面図、第３図は同上装置の作動状態を示し、同図
Ａはき裂発生前の説明図、同図Ｂはき裂発生時の
説明図である。
１……被検体、２……検出セル、３……絶縁性
ケース、４……電導性微細粉体、５，６……電導
体、７……電気抵抗計、８……記録計、９……き
裂。
Fig. 1 is a perspective view of the entire device showing an embodiment in which the crack detection device of the present invention is applied to crack detection on a smooth surface, Fig. 2 is a vertical sectional view showing details of the detection cell in Fig. 1, and Fig. 3 The figures show the operating state of the same device, where Figure A is an explanatory diagram before a crack occurs, and Figure B is an explanatory diagram when a crack occurs. 1... Subject, 2... Detection cell, 3... Insulating case, 4... Conductive fine powder, 5, 6... Electric conductor, 7... Electric resistance meter, 8... Recorder, 9 ...Crack.
Claims (1)
され上方開口部が電導体で覆われるとともに被検
体表面に接する絶縁性底部の外側に電導体が被せ
られた検出セルと、上記検出セルの両電導体に接
続された電気抵抗計及びその出力端に接続された
記録計とを具え、被検体表面に上記検出セルの底
部電導体を貼着し、き裂発生に伴う上記検出セル
の底部破壊による電気抵抗の変化を上記電気抵抗
計及び記録計で計測することを特徴とするき裂検
出装置。 A detection cell in which an insulating case with an upper opening is filled with conductive powder, the upper opening is covered with the conductor, and the outside of the insulating bottom in contact with the surface of the specimen is covered with the conductor; It is equipped with an electric resistance meter connected to both conductors and a recorder connected to its output end, and the bottom conductor of the detection cell is pasted on the surface of the object to be inspected. A crack detection device characterized in that a change in electrical resistance due to fracture is measured using the electrical resistance meter and recorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175076U JPH0178944U (en) | 1987-11-18 | 1987-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175076U JPH0178944U (en) | 1987-11-18 | 1987-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178944U true JPH0178944U (en) | 1989-05-26 |
Family
ID=31466892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175076U Pending JPH0178944U (en) | 1987-11-18 | 1987-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178944U (en) |
-
1987
- 1987-11-18 JP JP1987175076U patent/JPH0178944U/ja active Pending
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