EP0245351A1 - Gerät für bandspannungsmessungen - Google Patents

Gerät für bandspannungsmessungen

Info

Publication number
EP0245351A1
EP0245351A1 EP86906473A EP86906473A EP0245351A1 EP 0245351 A1 EP0245351 A1 EP 0245351A1 EP 86906473 A EP86906473 A EP 86906473A EP 86906473 A EP86906473 A EP 86906473A EP 0245351 A1 EP0245351 A1 EP 0245351A1
Authority
EP
European Patent Office
Prior art keywords
web
contact
paper
tension
web tension
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.)
Pending
Application number
EP86906473A
Other languages
English (en)
French (fr)
Inventor
A Oge Hansen
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.)
PAPIRINDUSTRIENS FORSKNINGSINSTITUTT
Original Assignee
PAPIRINDUSTRIENS FORSKNINGSINSTITUTT
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 PAPIRINDUSTRIENS FORSKNINGSINSTITUTT filed Critical PAPIRINDUSTRIENS FORSKNINGSINSTITUTT
Publication of EP0245351A1 publication Critical patent/EP0245351A1/de
Pending legal-status Critical Current

Links

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
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/106—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a cantilever beam
    • 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
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/102—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors located at a non-interrupted part of the flexible member
    • 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
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/108—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a single support, e.g. a glider

Definitions

  • the printing press may show up as a skewed web tension profile in one direction) .
  • the instruments should therefore be as small and light as possible and preferably be independent of external power such as line voltage. It should also be possible to repeat the measurements several times without interfering with the production.
  • the instrument which in the following paragraphs is described in detail, is believed to be very suitable for such purposes.
  • the web tension at a certain position of the paper web is read digitally on the instrument which is battery-powered. No wires to the main line are therefore needed.
  • the instrument must then be wired to a recorder. This may be a battery-driven small unit held in (the other) hand or an oscilloscope with digital storage and/or a recorder with access to main line voltage. According to information received an acoustical instrument is under development in Sweden, but the price is assumed to be more than 10 times as high.
  • the present web tensiometer includes a sensor in the shape of a leaf spring (4) arranged in a measuring head (1) with a smooth surface (2) which is brought in contact with the paper web (3) during the measurements.
  • Fig. 3 shows in perspective an imagined picture of the measuring head (1) in contact with the paper web (3), seen from the backside of the paper web, and indicating the bulge of the paper (7).
  • This depression that is, the position relative to the contact area (2) of the measuring head, is measured by means of a contactless, inductive displacement transducer (10) having a fixed position relative to the contact area of the measuring head.
  • the displacement transducer is fastened to the measuring head (1) by means of two clamps (11) attached to a beam (12) to which the displacement transducer is fastened.
  • An inductive displacement transducer has been chosen, but other types of electro-magnetic or optical sensors measuring the motion of the leaf spring contactless may be used.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • External Artificial Organs (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP86906473A 1985-11-14 1986-10-23 Gerät für bandspannungsmessungen Pending EP0245351A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO854553A NO854553L (no) 1985-11-14 1985-11-14 Banespenningsmaaler.
NO854553 1985-11-14

Publications (1)

Publication Number Publication Date
EP0245351A1 true EP0245351A1 (de) 1987-11-19

Family

ID=19888582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86906473A Pending EP0245351A1 (de) 1985-11-14 1986-10-23 Gerät für bandspannungsmessungen

Country Status (3)

Country Link
EP (1) EP0245351A1 (de)
NO (1) NO854553L (de)
WO (1) WO1987003087A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016479A (en) * 1989-04-12 1991-05-21 The Bionetics Corporation Tension gauge for thin materials
US9816906B2 (en) 2014-04-25 2017-11-14 Honeywell International Inc. Apparatus and method for stretch measurements of tissue webs
US20240118154A1 (en) * 2021-03-26 2024-04-11 Julius Zorn, Inc. Device and method for monitoring compression level of a compression garment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343229A (en) * 1942-09-25 1944-02-29 United Eng Foundry Co Strip tension measuring device
US2809519A (en) * 1954-09-22 1957-10-15 Olin Mathieson Web flatness indicator
US2986932A (en) * 1957-10-04 1961-06-06 Geolograph Co Weight-sensing mechanism
US3149489A (en) * 1961-02-10 1964-09-22 Beloit Iron Works Sheet tension device
US3296857A (en) * 1964-08-19 1967-01-10 Huyck Corp Apparatus for measuring the tension of flexible materials
US3739633A (en) * 1971-09-15 1973-06-19 E Saxl Apparatus for measuring tension in web-type materials
FR2504898A1 (fr) * 1981-04-29 1982-11-05 Schweizerische Viscose Procede et dispositif pour la mesure de la tension d'un fil en mouvement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8703087A1 *

Also Published As

Publication number Publication date
WO1987003087A1 (en) 1987-05-21
NO854553L (no) 1987-05-15

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: HANSEN, A OGE