IT1257835B - Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato - Google Patents

Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato

Info

Publication number
IT1257835B
IT1257835B ITBO920246A ITBO920246A IT1257835B IT 1257835 B IT1257835 B IT 1257835B IT BO920246 A ITBO920246 A IT BO920246A IT BO920246 A ITBO920246 A IT BO920246A IT 1257835 B IT1257835 B IT 1257835B
Authority
IT
Italy
Prior art keywords
tape material
devices
automatic change
coil
change
Prior art date
Application number
ITBO920246A
Other languages
English (en)
Inventor
Armando Neri
Bruno Tommasini
Original Assignee
Gd Spa
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 Gd Spa filed Critical Gd Spa
Priority to ITBO920246A priority Critical patent/IT1257835B/it
Publication of ITBO920246A0 publication Critical patent/ITBO920246A0/it
Priority to DE69313388T priority patent/DE69313388T2/de
Priority to EP93830262A priority patent/EP0586349B1/en
Priority to JP14602893A priority patent/JPH0650704A/ja
Priority to US08/077,717 priority patent/US5521498A/en
Publication of ITBO920246A1 publication Critical patent/ITBO920246A1/it
Application granted granted Critical
Publication of IT1257835B publication Critical patent/IT1257835B/it

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
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
    • G01B7/087—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring of objects while moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/107—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring objects while moving

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Il dispositivo rilevatore dello spessore di materiale in nastro in nastro in dispositivi per il cambio automatico di bobine di materiale in nastro (2) metallizzato comprende un circuito risonante (8) alimentato a frequenza (F) diversa dalla frequenza propria (fr) del circuito risonante (8) stesso, il quale consta di una bobina (14) a nucleo toroidale (3) dotato di un'apertura o traferro (4) attraverso la quale viene fatto avanzare il materiale in nastro (2) di cui si desidera rilevare lo spessore; ai capi della bobina (14) è collegato un rilevatore di tensione (9) attivante dei rilevatori di segnale in uscita (12,13) tramite rispettivi comparatori (10,11) tarabili per intervenire al ricevimento di valori di tensione stabilitasi ai capi della bobina (14) a seguito della variazione della sua reattanza induttiva determinata dal passaggio del nastro (2) e corrispondenti alla variazione di spessore del nastro (2) ed alle sue caratteristiche elettrofisiche. (Figura 2)
ITBO920246A 1992-06-17 1992-06-17 Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato IT1257835B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITBO920246A IT1257835B (it) 1992-06-17 1992-06-17 Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato
DE69313388T DE69313388T2 (de) 1992-06-17 1993-06-16 Vorrichtung zum Messen der Dicke eines Bandmaterials, insbesondere innerhalb einer Vorrichtung zum automatischen Auswechseln von Rollen aus metallisierten Bandmaterial
EP93830262A EP0586349B1 (en) 1992-06-17 1993-06-16 A device for sensing the thickness of strip material, in particular in devices for changing rolls of metallized strip material automatically
JP14602893A JPH0650704A (ja) 1992-06-17 1993-06-17 ストリップ材料の厚さを検出するための装置
US08/077,717 US5521498A (en) 1992-06-17 1993-06-17 Device for sensing the thickness of strip material in particular in devices for changing rolls of metallized strip material automatically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO920246A IT1257835B (it) 1992-06-17 1992-06-17 Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato

Publications (3)

Publication Number Publication Date
ITBO920246A0 ITBO920246A0 (it) 1992-06-17
ITBO920246A1 ITBO920246A1 (it) 1993-12-17
IT1257835B true IT1257835B (it) 1996-02-13

Family

ID=11338386

Family Applications (1)

Application Number Title Priority Date Filing Date
ITBO920246A IT1257835B (it) 1992-06-17 1992-06-17 Dispositivo rilevatore dello spessore di materiale in nastro in particolare in dispositivi per il cambio automatico di bobine di materiale in nastro metallizzato

Country Status (5)

Country Link
US (1) US5521498A (it)
EP (1) EP0586349B1 (it)
JP (1) JPH0650704A (it)
DE (1) DE69313388T2 (it)
IT (1) IT1257835B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102926A1 (de) * 2001-01-23 2002-07-25 Focke & Co Verfahren zum Herstellen von Zigarettenpackungen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205352A (en) * 1961-08-04 1965-09-07 Gen Precision Inc Presence detector
US3544893A (en) * 1968-08-05 1970-12-01 Anatoly Ivanovich Savin Apparatus for noncontact measurement of semiconductor resistivity including a toroidal inductive coil with a gap
US3679968A (en) * 1970-03-16 1972-07-25 Jean Claude Commercon Method and device for measuring the thickness of a metal deposit on an insulating support
US3878457A (en) * 1973-11-16 1975-04-15 Wayne E Rodgers Thin film thickness measuring apparatus using an unbalanced inductive bridge
US4005359A (en) * 1975-11-07 1977-01-25 Smoot William N Resonant frequency measuring device for gauging coating thickness
DE2726648A1 (de) * 1977-06-14 1979-02-15 Precitec Gmbh Schaltungsanordnung zur messung des werkzeug/werkstueckabstands
DE3341539A1 (de) * 1983-11-17 1985-05-30 Focke & Co, 2810 Verden Einrichtung zur ueberwachung und steuerung von bahnen in verpackungsmaschinen
DE3515643A1 (de) * 1985-04-27 1986-10-30 B.A.T. Cigarettenfabriken GmbH, 2000 Hamburg Anspleiss- und einfaedelvorrichtung fuer papierstreifen, insbesondere cigarettenpapierstreifen
DE3639972A1 (de) * 1986-11-22 1988-05-26 Hauni Werke Koerber & Co Kg Verfahren und einrichtung zum aussondern von durch fehlerstellen unbrauchbaren materialbahnabschnitten aus einer materialbahn
US4791367A (en) * 1987-07-15 1988-12-13 Impact Systems, Inc. Contacting thickness gauge for moving sheet material
JPS6448957A (en) * 1987-08-18 1989-02-23 Dow Kako Kk Construction method for mounting heat insulating panel and heat insulating panel mounting tool used therein
JP2506860B2 (ja) * 1987-12-04 1996-06-12 松下電器産業株式会社 金属缶の接着部検知装置
US4901577A (en) * 1988-04-28 1990-02-20 World Color Press, Inc. Apparatus for detecting splices in the web of a printing press
DE3912946C3 (de) * 1989-04-20 1996-06-20 Turck Werner Kg Induktiver Näherungsschalter
US5198777A (en) * 1990-02-14 1993-03-30 Murata Mfg. Co., Ltd. Paper thickness detecting apparatus having a resonator with a resonance point set by a capacitance detecting unit
US5132617A (en) * 1990-05-16 1992-07-21 International Business Machines Corp. Method of measuring changes in impedance of a variable impedance load by disposing an impedance connected coil within the air gap of a magnetic core

Also Published As

Publication number Publication date
EP0586349A1 (en) 1994-03-09
JPH0650704A (ja) 1994-02-25
DE69313388T2 (de) 1998-01-29
ITBO920246A1 (it) 1993-12-17
US5521498A (en) 1996-05-28
ITBO920246A0 (it) 1992-06-17
EP0586349B1 (en) 1997-08-27
DE69313388D1 (de) 1997-10-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970626