JPS562543A - Metal peeling inspection system - Google Patents
Metal peeling inspection systemInfo
- Publication number
- JPS562543A JPS562543A JP7892679A JP7892679A JPS562543A JP S562543 A JPS562543 A JP S562543A JP 7892679 A JP7892679 A JP 7892679A JP 7892679 A JP7892679 A JP 7892679A JP S562543 A JPS562543 A JP S562543A
- Authority
- JP
- Japan
- Prior art keywords
- contacts
- couple
- points
- computer
- voltage
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To detect a metal peeling rapidly with accuracy by flowing constant current between the 1st couple of contacts that come in two-point contact with a metal surface with a junction surface to be inspected and by comparing a voltage detected between the 2nd couple of contacts, meeting the surface at two points between the 1st couple of contacts, to a reference voltage through a computer.
CONSTITUTION: Sensor 1, consisting of two kinds of the 1st couple of contacts 12a and 12b and the 2nd couple of contacts 13a and 13b arranged on insulating support 11, is movable along a metal surface to be inspected by a pulse motor brought under the control of a computer. The 1st couple of contacts 12a and 12b, meeting the metal surface at two points, flow constant current, supplied from a constant current circuit, between two points. The 2nd couple of contacts 13a and 13b, coming in two-point contact with the metal surface between the 1st couple of contacts 12a 12b, detect a voltage between two points. The output is compared by the computer to a reference voltage through an A/D converter and when the peeling occurs between metals M1 and M2, the voltage between contacts 13a and 13b increases and through the computer, the state and position of the peeling can rapidly be detected with accuracy.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892679A JPS562543A (en) | 1979-06-21 | 1979-06-21 | Metal peeling inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892679A JPS562543A (en) | 1979-06-21 | 1979-06-21 | Metal peeling inspection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS562543A true JPS562543A (en) | 1981-01-12 |
Family
ID=13675464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7892679A Pending JPS562543A (en) | 1979-06-21 | 1979-06-21 | Metal peeling inspection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS562543A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841341A (en) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | Detection of crack |
-
1979
- 1979-06-21 JP JP7892679A patent/JPS562543A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5841341A (en) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | Detection of crack |
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