JPS57147007A - Method for measurement of length of continuously running material - Google Patents

Method for measurement of length of continuously running material

Info

Publication number
JPS57147007A
JPS57147007A JP3276981A JP3276981A JPS57147007A JP S57147007 A JPS57147007 A JP S57147007A JP 3276981 A JP3276981 A JP 3276981A JP 3276981 A JP3276981 A JP 3276981A JP S57147007 A JPS57147007 A JP S57147007A
Authority
JP
Japan
Prior art keywords
mark
length
detection
marks
gate
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
Application number
JP3276981A
Other languages
Japanese (ja)
Other versions
JPS6359442B2 (en
Inventor
Kazuo Yamaguchi
Kazuo Kuroki
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP3276981A priority Critical patent/JPS57147007A/en
Publication of JPS57147007A publication Critical patent/JPS57147007A/en
Publication of JPS6359442B2 publication Critical patent/JPS6359442B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/043—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To prevent flaws and dust on the surface of a long-sized running material from being detected erroneously, by opening a gate only at the detection time of a mark in case that this material is marked to graduate and measure the length of it. CONSTITUTION:Marks 2 are applied onto the surface of a running material by a mark applier 3, and marks moved just under sensors 7a and 7b are detected by them. Simultaneously with the mark detection due to the sensor 7b, the applier 3 applies the next mark. The interval of time between detection signals of two sensors is measured by a circuit 9, and a running speed is obtained on the basis of a length ls between sensors by a calculator 10. A length li between marks is obtained on a basis of the running speed and the interval of time between applications. Three gate signals (a), (b), and (c) are obtained from the speed signal by a DA converter 13, a VF converter 14, and a frequency selector 15, and AND between these signals and a pulse from a monostable multivibrator 16 which is triggered by the detection signal is operated in an AND17 to obtain a gate pulse for mark detection. Gates 17a and 17b are controlled by this gate pulse to detect only the mark signal.
JP3276981A 1981-03-06 1981-03-06 Method for measurement of length of continuously running material Granted JPS57147007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3276981A JPS57147007A (en) 1981-03-06 1981-03-06 Method for measurement of length of continuously running material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3276981A JPS57147007A (en) 1981-03-06 1981-03-06 Method for measurement of length of continuously running material

Publications (2)

Publication Number Publication Date
JPS57147007A true JPS57147007A (en) 1982-09-10
JPS6359442B2 JPS6359442B2 (en) 1988-11-18

Family

ID=12368041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3276981A Granted JPS57147007A (en) 1981-03-06 1981-03-06 Method for measurement of length of continuously running material

Country Status (1)

Country Link
JP (1) JPS57147007A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60194306A (en) * 1984-03-15 1985-10-02 Matsuya Sangyo Kk Length measuring method and apparatus for wire rod
JPS62282209A (en) * 1986-05-31 1987-12-08 Nec Home Electronics Ltd Encoder
WO1991018261A1 (en) * 1990-05-22 1991-11-28 The Furukawa Electric Corporation Apparatus and method for measuring length of long moving object
FR2867998A1 (en) * 2004-03-23 2005-09-30 Laselec Sa Cable marking e.g. laser marking, process for e.g. aeronautics field, involves detecting mark by optical system, transmitting signal indicating detection of mark, and triggering procedure for marking next mark
WO2006109020A1 (en) * 2005-04-13 2006-10-19 Renishaw Plc Method of scale manufacture with laser and sensor and feedback means for producing scale marking with desired depth

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60194306A (en) * 1984-03-15 1985-10-02 Matsuya Sangyo Kk Length measuring method and apparatus for wire rod
JPS62282209A (en) * 1986-05-31 1987-12-08 Nec Home Electronics Ltd Encoder
WO1991018261A1 (en) * 1990-05-22 1991-11-28 The Furukawa Electric Corporation Apparatus and method for measuring length of long moving object
FR2867998A1 (en) * 2004-03-23 2005-09-30 Laselec Sa Cable marking e.g. laser marking, process for e.g. aeronautics field, involves detecting mark by optical system, transmitting signal indicating detection of mark, and triggering procedure for marking next mark
WO2006109020A1 (en) * 2005-04-13 2006-10-19 Renishaw Plc Method of scale manufacture with laser and sensor and feedback means for producing scale marking with desired depth

Also Published As

Publication number Publication date
JPS6359442B2 (en) 1988-11-18

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