JPS5536770A - Electrostatic capacity type flaw detection method and its device - Google Patents
Electrostatic capacity type flaw detection method and its deviceInfo
- Publication number
- JPS5536770A JPS5536770A JP11001878A JP11001878A JPS5536770A JP S5536770 A JPS5536770 A JP S5536770A JP 11001878 A JP11001878 A JP 11001878A JP 11001878 A JP11001878 A JP 11001878A JP S5536770 A JPS5536770 A JP S5536770A
- Authority
- JP
- Japan
- Prior art keywords
- condenser
- electrostatic capacity
- detection method
- flaw detection
- capacity type
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE: To quantitatively detect the locations and extent of flaws and corrosion, by forming a condenser to two fixed electrodes mounted onto an insulator, and by moving the condenser along matter to be measured.
CONSTITUTION: A condenser C is made up from two fixed electrodes 2, 3 installed onto an insulator 1 in bakelite, etc. at a fixed interval. The condenser C is shifted in parallel with a surface in the axial direction along an inner surface of matter to be inspected such as a tube for a heat exchanger. When the condenser C locomotes up to corrosion portions, electrostatic capacity among the rings 2, 3 and the tube changes.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11001878A JPS5536770A (en) | 1978-09-07 | 1978-09-07 | Electrostatic capacity type flaw detection method and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11001878A JPS5536770A (en) | 1978-09-07 | 1978-09-07 | Electrostatic capacity type flaw detection method and its device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5536770A true JPS5536770A (en) | 1980-03-14 |
JPS627498B2 JPS627498B2 (en) | 1987-02-17 |
Family
ID=14525029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11001878A Granted JPS5536770A (en) | 1978-09-07 | 1978-09-07 | Electrostatic capacity type flaw detection method and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5536770A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008224409A (en) * | 2007-03-13 | 2008-09-25 | Railway Technical Res Inst | Capacitance sensor for nondestructive inspection |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0280800A (en) * | 1988-09-16 | 1990-03-20 | Mitsubishi Heavy Ind Ltd | Segment transporter |
JPH03108100U (en) * | 1990-02-20 | 1991-11-07 |
-
1978
- 1978-09-07 JP JP11001878A patent/JPS5536770A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008224409A (en) * | 2007-03-13 | 2008-09-25 | Railway Technical Res Inst | Capacitance sensor for nondestructive inspection |
Also Published As
Publication number | Publication date |
---|---|
JPS627498B2 (en) | 1987-02-17 |
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