ES470724A1 - Un aparato explorador de bandas - Google Patents

Un aparato explorador de bandas

Info

Publication number
ES470724A1
ES470724A1 ES470724A ES470724A ES470724A1 ES 470724 A1 ES470724 A1 ES 470724A1 ES 470724 A ES470724 A ES 470724A ES 470724 A ES470724 A ES 470724A ES 470724 A1 ES470724 A1 ES 470724A1
Authority
ES
Spain
Prior art keywords
web
pulse
positive
gives
edge
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
ES470724A
Other languages
English (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.)
ST Regis Paper Co
Original Assignee
ST Regis Paper Co
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 ST Regis Paper Co filed Critical ST Regis Paper Co
Publication of ES470724A1 publication Critical patent/ES470724A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Un aparato explorador de bandas para una banda susceptible de moverse a lo largo de una trayectoria, que comprende, en combinación, un detector de radiación, medios exploradores para establecer una trayectoria de exploración por puntos luminosos móviles para explorar periódicamente en sentido transversal de la banda en movimiento desde un lado al otro de la banda, medios para irradiar al menos la porción de la banda explorada por al punto luminoso móvil, medios para transmitir a dicho detector la imagen de la porción de la banda explorada por el punto luminoso móvil, un diferenciador conectado para diferenciar la salida de dicho detector, y un circuito de caracterización de salida conectado con la salida de dicho diferenciador para caracterizar entre señales crecientes y señales decrecientes con relación a una salida normal procedente de dicho detector durante la exploración de la banda.
ES470724A 1977-08-05 1978-06-13 Un aparato explorador de bandas Expired ES470724A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/822,064 US4160913A (en) 1977-08-05 1977-08-05 Web scanning apparatus

Publications (1)

Publication Number Publication Date
ES470724A1 true ES470724A1 (es) 1979-01-16

Family

ID=25235027

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470724A Expired ES470724A1 (es) 1977-08-05 1978-06-13 Un aparato explorador de bandas

Country Status (8)

Country Link
US (1) US4160913A (es)
JP (1) JPS5832654B2 (es)
BR (1) BR7804500A (es)
CA (1) CA1106023A (es)
ES (1) ES470724A1 (es)
FI (1) FI70482C (es)
FR (1) FR2399657A1 (es)
SE (1) SE447849B (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247204A (en) * 1979-02-26 1981-01-27 Intec Corporation Method and apparatus for a web edge tracking flaw detection system
JPS576307A (en) * 1980-06-13 1982-01-13 Toyota Central Res & Dev Lab Inc Method and apparatus of surface failure inspection of circular member
GB2081891A (en) * 1980-08-11 1982-02-24 Wiggins Teape The Group Ltd Web monitoring apparatus
US4422766A (en) * 1981-07-27 1983-12-27 Ppg Industries, Inc. Method of and device for reducing apparatus response time during the testing for moisture content in moving spaced plastic sheets
JPS62281454A (ja) * 1986-05-30 1987-12-07 Toshiba Corp 電子回路部品の実装方法
DE3636192C1 (de) * 1986-10-24 1988-02-18 Erhardt & Leimer Gmbh Vorrichtung zur Erfassung des Abbildes von Oberflaechenbereichen laufender Warenbahnen
GB8700765D0 (en) * 1987-01-14 1987-02-18 Wiggins Teape Group Ltd Laser apparatus
GB8803560D0 (en) * 1988-02-16 1988-03-16 Wiggins Teape Group Ltd Laser apparatus for repetitively marking moving sheet
US5352495A (en) * 1989-02-16 1994-10-04 The Wiggins Teape Group Limited Treatment of a surface by laser energy
US5054930A (en) * 1990-03-02 1991-10-08 Intec, Corp. Scanning apparatus
US5389789A (en) * 1992-05-20 1995-02-14 Union Camp Corporation Portable edge crack detector for detecting size and shape of a crack and a portable edge detector
US5473426A (en) * 1993-03-05 1995-12-05 Nikon Corporation Defect inspection apparatus
US5949550A (en) * 1997-08-21 1999-09-07 Consolidated Papers, Inc. Method and apparatus for detecting defects in a moving web
US6888635B2 (en) * 2000-12-05 2005-05-03 Ambalux Corporation Detection method and apparatus
US7601978B2 (en) * 2002-04-11 2009-10-13 Hamed Sari-Sarraf Fabric wrinkle evaluation
US7411603B2 (en) * 2005-03-29 2008-08-12 Hewlett-Packard Development Company, L.P. Light guide
US7126734B1 (en) * 2005-09-12 2006-10-24 Symbol Technologies, Inc. Motor drive circuit with reduced coil crosstalk in a feedback signal indicative of mirror motion in light scanning arrangements
US7815119B2 (en) * 2006-06-06 2010-10-19 Symbol Technologies, Inc. Monitoring scan mirror motion in laser scanning arrangements
JP6531381B2 (ja) * 2014-12-15 2019-06-19 セイコーエプソン株式会社 シート製造装置及びシート製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303041A (es) * 1969-01-17 1973-01-17
GB1284442A (en) * 1969-01-17 1972-08-09 Sira Inst Formerly Known As Br Method and electro-optical system for inspecting bodies such as tiles
US3646353A (en) * 1970-10-19 1972-02-29 Eastman Kodak Co Flying spot scanner blanking
DE2241263C3 (de) * 1971-08-25 1975-05-07 Hitachi Electronics Co., Ltd. überwachungsvorrichtung zur Erfassung eines Fehlers auf der Oberfläche eines sich bewegenden bandförmigen Gegenstandes
JPS5149234B2 (es) * 1971-08-31 1976-12-25
JPS5310878B2 (es) * 1972-03-24 1978-04-17
US3781531A (en) * 1972-06-23 1973-12-25 Intec Corp Flaw detector system utilizing a laser scanner
US3970857A (en) * 1975-08-06 1976-07-20 E. I. Du Pont De Nemours And Company Apparatus for web defect detection including a web swatch that contains a defect

Also Published As

Publication number Publication date
FR2399657A1 (fr) 1979-03-02
US4160913A (en) 1979-07-10
FI70482C (fi) 1986-09-19
FR2399657B1 (es) 1983-10-07
CA1106023A (en) 1981-07-28
FI70482B (fi) 1986-03-27
FI782005A (fi) 1979-02-06
SE7806033L (sv) 1979-02-06
JPS5832654B2 (ja) 1983-07-14
BR7804500A (pt) 1979-04-17
SE447849B (sv) 1986-12-15
JPS5430990A (en) 1979-03-07

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