JPS55119048A - Signal processing system - Google Patents

Signal processing system

Info

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
Application number
JP2742279A
Other languages
Japanese (ja)
Inventor
Takashi Tsuda
Shinichi Kitamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2742279A priority Critical patent/JPS55119048A/en
Publication of JPS55119048A publication Critical patent/JPS55119048A/en
Pending legal-status Critical Current

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
JP2742279A 1979-03-09 1979-03-09 Signal processing system Pending JPS55119048A (en)

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)

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