CA2348280A1 - Nip width sensing system and method - Google Patents

Nip width sensing system and method Download PDF

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Publication number
CA2348280A1
CA2348280A1 CA002348280A CA2348280A CA2348280A1 CA 2348280 A1 CA2348280 A1 CA 2348280A1 CA 002348280 A CA002348280 A CA 002348280A CA 2348280 A CA2348280 A CA 2348280A CA 2348280 A1 CA2348280 A1 CA 2348280A1
Authority
CA
Canada
Prior art keywords
nip width
nip
measuring
sensing system
resistance
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
CA002348280A
Other languages
French (fr)
Other versions
CA2348280C (en
Inventor
Robert H. Moore
William B. Kennedy
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.)
Stowe Woodward LLC
Original Assignee
Sw Paper, Inc.
Robert H. Moore
William B. Kennedy
Stowe Woodward Company
Stowe Woodward, Inc.
Stowe Woodward, L.L.C.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22955027&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2348280(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sw Paper, Inc., Robert H. Moore, William B. Kennedy, Stowe Woodward Company, Stowe Woodward, Inc., Stowe Woodward, L.L.C. filed Critical Sw Paper, Inc.
Publication of CA2348280A1 publication Critical patent/CA2348280A1/en
Application granted granted Critical
Publication of CA2348280C publication Critical patent/CA2348280C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0061—Force sensors associated with industrial machines or actuators
    • G01L5/0076—Force sensors associated with manufacturing machines
    • G01L5/0085—Force sensors adapted for insertion between cooperating machine elements, e.g. for measuring the nip force between rollers
    • 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
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures

Abstract

Devices for measuring a nip width between rolls of a press nip include one or more sensors adapted to be placed in the nip while the nip is stationary. The elec-trical resistance of each sen-sor corresponds to the size of the nip width, whereby a nip width or a nip width distribution may be deter-mined by measuring the sensor resistance(s). Methods of measuring a nip width distribution include provid-ing a plurality of force sen-sitive resistor sensors each of which respond to pressure applied thereto to provide a variable sensor resistance as a function of the amount of pressure and the area of the pressure exerted on the sensor.
CA002348280A 1999-02-18 2000-01-18 Nip width sensing system and method Expired - Lifetime CA2348280C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/252,203 US6568285B1 (en) 1998-02-19 1999-02-18 Nip width sensing system and method
US09/252,203 1999-02-18
PCT/US2000/001120 WO2000049379A1 (en) 1999-02-18 2000-01-18 Nip width sensing system and method

Publications (2)

Publication Number Publication Date
CA2348280A1 true CA2348280A1 (en) 2000-08-24
CA2348280C CA2348280C (en) 2007-05-15

Family

ID=22955027

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002348280A Expired - Lifetime CA2348280C (en) 1999-02-18 2000-01-18 Nip width sensing system and method

Country Status (9)

Country Link
US (3) US6568285B1 (en)
EP (1) EP1151261B1 (en)
AT (1) ATE329238T1 (en)
AU (1) AU2729600A (en)
BR (1) BR0008295A (en)
CA (1) CA2348280C (en)
DE (1) DE60028545T2 (en)
NO (1) NO323997B1 (en)
WO (1) WO2000049379A1 (en)

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CN103635629B (en) * 2011-06-02 2016-01-20 斯托伍德沃德许可有限责任公司 For nip portion checking method for width and the system of industrial roll
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US9540769B2 (en) 2013-03-11 2017-01-10 International Paper Company Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
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US9954125B2 (en) * 2013-11-12 2018-04-24 Forwarding Technology Ltd Light spot position detector with an array of nanorods
US9804044B2 (en) 2014-05-02 2017-10-31 International Paper Company Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays
US10378980B2 (en) 2014-05-02 2019-08-13 International Paper Company Method and system associated with a sensing roll and a mating roll for collecting roll data
US9797788B2 (en) 2014-05-02 2017-10-24 International Paper Company Method and system associated with a sensing roll including pluralities of sensors and a mating roll for collecting roll data
US9650744B2 (en) 2014-09-12 2017-05-16 Stowe Woodward Licensco Llc Suction roll with sensors for detecting operational parameters
US9534970B1 (en) 2015-06-10 2017-01-03 International Paper Company Monitoring oscillating components
US9863827B2 (en) 2015-06-10 2018-01-09 International Paper Company Monitoring machine wires and felts
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US9696226B2 (en) 2015-06-10 2017-07-04 International Paper Company Count-based monitoring machine wires and felts
US9816232B2 (en) 2015-06-10 2017-11-14 International Paper Company Monitoring upstream machine wires and felts
US10370795B2 (en) 2015-06-10 2019-08-06 International Paper Company Monitoring applicator rods and applicator rod nips
JP6810169B2 (en) 2016-04-26 2021-01-06 ストウ・ウッドワード・ライセンスコ，リミテッド・ライアビリティ・カンパニー Suction roll with through-hole and blind drill hole patterns to improve land distance
US10933616B2 (en) * 2016-08-01 2021-03-02 Sintokogio, Ltd. Roll press method and roll press system
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EP3758959A4 (en) 2018-02-27 2022-03-09 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11084342B2 (en) 2018-02-27 2021-08-10 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11014417B2 (en) 2018-02-27 2021-05-25 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11135882B2 (en) 2018-02-27 2021-10-05 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11491832B2 (en) 2018-02-27 2022-11-08 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
US11221262B2 (en) 2018-02-27 2022-01-11 Methode Electronics, Inc. Towing systems and methods using magnetic field sensing
AU2020264360B1 (en) * 2020-04-09 2021-09-16 Citic Heavy Industries Co., Ltd. Length detection system and length detection method
US11879918B2 (en) * 2022-02-16 2024-01-23 Stowe Woodward Licensco Llc Methods, devices, and systems for nip calibration
GB202203792D0 (en) * 2022-03-18 2022-05-04 Peratech Holdco Ltd Force sensing device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150013927A1 (en) * 2012-02-28 2015-01-15 Voith Patent Gmbh Machine for producing a fiber web
US9121136B2 (en) * 2012-02-28 2015-09-01 Voith Patent Gmbh Machine for producing a fiber web

Also Published As

Publication number Publication date
NO323997B1 (en) 2007-07-30
US20050000303A1 (en) 2005-01-06
DE60028545T2 (en) 2007-05-16
US6568285B1 (en) 2003-05-27
EP1151261B1 (en) 2006-06-07
BR0008295A (en) 2002-01-22
NO20013925D0 (en) 2001-08-13
DE60028545D1 (en) 2006-07-20
NO20013925L (en) 2001-08-13
US20030217606A1 (en) 2003-11-27
US7225688B2 (en) 2007-06-05
ATE329238T1 (en) 2006-06-15
WO2000049379A1 (en) 2000-08-24
CA2348280C (en) 2007-05-15
EP1151261A1 (en) 2001-11-07
US6769314B2 (en) 2004-08-03
AU2729600A (en) 2000-09-04

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Effective date: 20200120