JPS5746108A - Inspection of surface shape for steel material - Google Patents
Inspection of surface shape for steel materialInfo
- Publication number
- JPS5746108A JPS5746108A JP12212880A JP12212880A JPS5746108A JP S5746108 A JPS5746108 A JP S5746108A JP 12212880 A JP12212880 A JP 12212880A JP 12212880 A JP12212880 A JP 12212880A JP S5746108 A JPS5746108 A JP S5746108A
- Authority
- JP
- Japan
- Prior art keywords
- steel material
- surface shape
- temperature
- center line
- arranged parallel
- 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
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
PURPOSE: To enable a high speed measurement by determining a surface shape of a speed material widthwise detecting the temperature of respective surface thereof through a quick heating thereof with an induction heating coil arranged parallel to the center line of the thickness thereof.
CONSTITUTION: An induction heating coil l1 arranged parallel to the center line (x direction) of the thickness of a steel material 2 is induction heated with a high frequency pulse by a command from a microcomputor and the temperature of the surface of the steel material 2 immediate below the coil l1 is scanned and detected with a scanning type radiation thermometer 31. The signal is transmitted to a clamp circuit 11 via an amplifier 71 and an inversion amplifier 91 to adjust the lowest level of the inversion level to the reference potential (earth) and only a surface temperature smoothing signal inside the rim section of the steel material 2 is taken out with an analog gate 131. It is memorized with a latch circuit 141 via AD converter 121 to deliver a top surface shape data, thereby ensuring a high speed measurement.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12212880A JPS5746108A (en) | 1980-09-03 | 1980-09-03 | Inspection of surface shape for steel material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12212880A JPS5746108A (en) | 1980-09-03 | 1980-09-03 | Inspection of surface shape for steel material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5746108A true JPS5746108A (en) | 1982-03-16 |
Family
ID=14828302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12212880A Pending JPS5746108A (en) | 1980-09-03 | 1980-09-03 | Inspection of surface shape for steel material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5746108A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069430A1 (en) * | 1999-07-16 | 2001-01-17 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Methode and device for flaw detection in metalic parts |
-
1980
- 1980-09-03 JP JP12212880A patent/JPS5746108A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069430A1 (en) * | 1999-07-16 | 2001-01-17 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Methode and device for flaw detection in metalic parts |
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