FR2371673A1 - Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors - Google Patents

Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors

Info

Publication number
FR2371673A1
FR2371673A1 FR7635004A FR7635004A FR2371673A1 FR 2371673 A1 FR2371673 A1 FR 2371673A1 FR 7635004 A FR7635004 A FR 7635004A FR 7635004 A FR7635004 A FR 7635004A FR 2371673 A1 FR2371673 A1 FR 2371673A1
Authority
FR
France
Prior art keywords
wire
instrument
wire dia
vibration
charge transfer
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
FR7635004A
Other languages
French (fr)
Other versions
FR2371673B1 (en
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.)
Societe Industrielle de Liaisons Electriques SA
Original Assignee
Societe Industrielle de Liaisons Electriques SA
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 Societe Industrielle de Liaisons Electriques SA filed Critical Societe Industrielle de Liaisons Electriques SA
Priority to FR7635004A priority Critical patent/FR2371673A1/en
Publication of FR2371673A1 publication Critical patent/FR2371673A1/en
Application granted granted Critical
Publication of FR2371673B1 publication Critical patent/FR2371673B1/fr
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
    • G01B11/08—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

Abstract

An instrument is used to measure dynamically the dia. of a wire. It is not subject to errors due to optical effects on vibration of the moving wire. The instrument has a light source (1) which projects the shadow of a wire (2) onto a screen (3). Two linear photodetectors (4, 5) are located on the edge of the shadow on the screen. The detectors (4, 5) are charge transfer devices which may be considered as several aligned cells. Another detector (13) is used to measure the position of the wire (2) from the screen (3). A digital read-out is used to provide a numerical display related to the number of cells in the shadow detectors (4, 5) and the position of wire from the screen (3).
FR7635004A 1976-11-19 1976-11-19 Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors Granted FR2371673A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7635004A FR2371673A1 (en) 1976-11-19 1976-11-19 Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7635004A FR2371673A1 (en) 1976-11-19 1976-11-19 Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors

Publications (2)

Publication Number Publication Date
FR2371673A1 true FR2371673A1 (en) 1978-06-16
FR2371673B1 FR2371673B1 (en) 1982-05-14

Family

ID=9180121

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7635004A Granted FR2371673A1 (en) 1976-11-19 1976-11-19 Instrument for wire dia. measurement - has charge transfer detectors to determine moving wire dia. and is not susceptible to vibration or optical errors

Country Status (1)

Country Link
FR (1) FR2371673A1 (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
US6922254B2 (en) * 1997-12-20 2005-07-26 Sikora Industrieelektronik Gmbh Method for measuring the diameter of an elongated article of a circular cross section

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
US6922254B2 (en) * 1997-12-20 2005-07-26 Sikora Industrieelektronik Gmbh Method for measuring the diameter of an elongated article of a circular cross section

Also Published As

Publication number Publication date
FR2371673B1 (en) 1982-05-14

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Legal Events

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