GB1405281A - Method for contactless measuring of movable objects - Google Patents

Method for contactless measuring of movable objects

Info

Publication number
GB1405281A
GB1405281A GB2971472A GB2971472A GB1405281A GB 1405281 A GB1405281 A GB 1405281A GB 2971472 A GB2971472 A GB 2971472A GB 2971472 A GB2971472 A GB 2971472A GB 1405281 A GB1405281 A GB 1405281A
Authority
GB
United Kingdom
Prior art keywords
dimension
illuminated
measuring
movable objects
diodes
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.)
Expired
Application number
GB2971472A
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.)
AGA AB
Original Assignee
AGA AB
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 AGA AB filed Critical AGA AB
Priority to GB2971472A priority Critical patent/GB1405281A/en
Publication of GB1405281A publication Critical patent/GB1405281A/en
Expired 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
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/10—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
    • G01B11/105—Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving using photoelectric detection means
    • 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
    • G01B11/046—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 width

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1405281 Measuring dimensions photoelectrically AGA AB 24 June 1972 29714/72 Heading G1A The dimension of an object 1 is measured by projecting the borders of the object in one dimension on to a number of photodiodes (4, 5) scanning the luminous intensity of the diodes with at clock frequency and using either the number not illuminated or the number illuminated as a measure of the dimension. The system is preferably used for measuring the diameter of a moving hot wire in a rolling mull. A light source 1 casts a shadow of the object 2 on to either one or two sets of photo diodes 4, 5. These are scanned to determine whether they are illuminated and the resulting output is processed and fed to a direct read-out counter 8. Upper and lower limits for the dimension may be set and an alarm activated when these limits are exceeded.
GB2971472A 1972-06-24 1972-06-24 Method for contactless measuring of movable objects Expired GB1405281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2971472A GB1405281A (en) 1972-06-24 1972-06-24 Method for contactless measuring of movable objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2971472A GB1405281A (en) 1972-06-24 1972-06-24 Method for contactless measuring of movable objects

Publications (1)

Publication Number Publication Date
GB1405281A true GB1405281A (en) 1975-09-10

Family

ID=10295947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2971472A Expired GB1405281A (en) 1972-06-24 1972-06-24 Method for contactless measuring of movable objects

Country Status (1)

Country Link
GB (1) GB1405281A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483070A1 (en) * 1980-05-21 1981-11-27 Daystrom Ltd Dimensional measurement of luminous goods, esp. rolled goods - using self-scanning diode row video signal amplitude comparison with reference
FR2588654A1 (en) * 1985-10-10 1987-04-17 Dujardin Montbard Somenor Method for checking size during the passage of bars and device for implementing this method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483070A1 (en) * 1980-05-21 1981-11-27 Daystrom Ltd Dimensional measurement of luminous goods, esp. rolled goods - using self-scanning diode row video signal amplitude comparison with reference
FR2588654A1 (en) * 1985-10-10 1987-04-17 Dujardin Montbard Somenor Method for checking size during the passage of bars and device for implementing this method

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed