JPS56157805A - Tracking method of continuous material - Google Patents

Tracking method of continuous material

Info

Publication number
JPS56157805A
JPS56157805A JP6052680A JP6052680A JPS56157805A JP S56157805 A JPS56157805 A JP S56157805A JP 6052680 A JP6052680 A JP 6052680A JP 6052680 A JP6052680 A JP 6052680A JP S56157805 A JPS56157805 A JP S56157805A
Authority
JP
Japan
Prior art keywords
point
expansion
pinch rollers
sensor
objective
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
JP6052680A
Other languages
Japanese (ja)
Inventor
Iwao Watanabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6052680A priority Critical patent/JPS56157805A/en
Publication of JPS56157805A publication Critical patent/JPS56157805A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To improve the accuracy of tracking a material by a methed wherein pinch rollers are provided near a reference point of a material flowing continuously and an objective point provided properly away therefrom respectively, and the expansion and contracting of the mateial is detected from the difference between the numbers of revolutions of said pinch rollers.
CONSTITUTION: A material 1 is marked with a mark point E, passed through a sensor 2 located at a reference point and delivered through an objective point B properly away therefrom. Pinch rollers 11 and 12 are provided near the sensor 2 and the objective point B, and the difference between the numbers of revolutions thereof is placed in an expansion counter 15. When said value is (m), expansion is Δl= 2πrm, where (r) is the radius of the pinch rollers, and an average expansion is Δl/ l. This means that the distance L between the sensor 2 and the objective point B has reduced to L'=L/(1+Δl/l). A preset value (L'/pulse generating rate) is set to a counter 4, and the number of the pulses generated according to the movement of the material 1 is subtracted therefrom. When the result becomes 0, the mark point E should have reached the objective point B. Thereby, the delivery of the material can be highly accurately controlled.
COPYRIGHT: (C)1981,JPO&Japio
JP6052680A 1980-05-09 1980-05-09 Tracking method of continuous material Pending JPS56157805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6052680A JPS56157805A (en) 1980-05-09 1980-05-09 Tracking method of continuous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6052680A JPS56157805A (en) 1980-05-09 1980-05-09 Tracking method of continuous material

Publications (1)

Publication Number Publication Date
JPS56157805A true JPS56157805A (en) 1981-12-05

Family

ID=13144837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6052680A Pending JPS56157805A (en) 1980-05-09 1980-05-09 Tracking method of continuous material

Country Status (1)

Country Link
JP (1) JPS56157805A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365674A (en) * 1991-03-01 1994-11-22 Elf Aquitaine Production Device for measuring the displacement of a swivel of a drilling mast

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365674A (en) * 1991-03-01 1994-11-22 Elf Aquitaine Production Device for measuring the displacement of a swivel of a drilling mast

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