JPS55119048A - Signal processing system - Google Patents
Signal processing systemInfo
- Publication number
- JPS55119048A JPS55119048A JP2742279A JP2742279A JPS55119048A JP S55119048 A JPS55119048 A JP S55119048A JP 2742279 A JP2742279 A JP 2742279A JP 2742279 A JP2742279 A JP 2742279A JP S55119048 A JPS55119048 A JP S55119048A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- scanning
- center
- flaw
- signal
- 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
Abstract
PURPOSE: To accurately detect such a signal alone that represents a flaw on the surface of a slab, by employing a memory covering approximately a half of one scanning line to obtain two sets of signal system outputs for scanning the slab from the center of one scanning line of a predetermined length toward each end of the slab.
CONSTITUTION: Infrared rays at a scanning point are reflected on a multi-sided reflector by a scanning detector 3 to scan the whole width of a slab 1, and the infrared rays are condensed by an infrared detector. The detec of a flaw in the surface of the slab 1 is carried out in the above manner. In this flaw detection system, a predetermined position of the slab is addressed to a memory for approximately a half of one scanning line, and the first half of an output signal, which includes the center line C, is writen, the latter half of the output signal representing a real-time output. The content of the memory is read backwardly from the center with respect to the first half portion including the center. Thus, two sets of signal system outputs for scanning the slab 1 from the center of one scanning line of a predetermined length to each end thereof are obtained. Each edge is treated with these signals, and a flaw signal is extracted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2742279A JPS55119048A (en) | 1979-03-09 | 1979-03-09 | Signal processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2742279A JPS55119048A (en) | 1979-03-09 | 1979-03-09 | Signal processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55119048A true JPS55119048A (en) | 1980-09-12 |
Family
ID=12220657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2742279A Pending JPS55119048A (en) | 1979-03-09 | 1979-03-09 | Signal processing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55119048A (en) |
-
1979
- 1979-03-09 JP JP2742279A patent/JPS55119048A/en active Pending
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