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Method for providing a piece of a film of a magnetoelastic material with an enhanced bending stiffness, product obtained by the method and sensor

A technology of bending stiffness and magnetoelasticity, applied in magnetic materials, piezoelectric/electrostrictive/magnetostrictive devices, material analysis using sound waves/ultrasonic waves/infrasonic waves, etc., can solve problems such as contact

Inactive Publication Date: 2012-03-21
ESSITY HYGIENE & HEALTH AB
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, if the magnetoelastic material has longitudinal curvature or tends to bend in the longitudinal direction and if the biasing element is positioned adjacent to the magnetoelastic material, there are situations where the magnetoelastic material is attracted into contact with the biasing element and / or is encapsulated. Risk of coming into contact with the package

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  • Method for providing a piece of a film of a magnetoelastic material with an enhanced bending stiffness, product obtained by the method and sensor
  • Method for providing a piece of a film of a magnetoelastic material with an enhanced bending stiffness, product obtained by the method and sensor
  • Method for providing a piece of a film of a magnetoelastic material with an enhanced bending stiffness, product obtained by the method and sensor

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Embodiment Construction

[0034] Figure 1a A schematic perspective view showing a thin film 1 of a magnetoelastic material used as, for example, a magnetoelastic material in a magnetoelastic sensor. Set in the form of strip 2 with horizontal x and vertical y Figure 1a The magnetoelastic material film 1 is shown. The strip 2 is stored in the form of a roll 3 . The strip 2 can be seen as being composed of a plurality of parts having the shape of a strip 4 in the longitudinal direction, the strip 4 still not separated or marked. The boundary of the corresponding band 4 is given by Figure 1a The dotted line in indicates. Furthermore, strip 2 has a longitudinal curvature, which is at Figure 1a shown schematically. As mentioned above, strips of magnetoelastic material, which may be used as magnetoelastic material eg in magnetoelastic sensors, generally have a longitudinal curvature or tend to bend in the longitudinal direction. The longitudinal bending or tendency to bend in the longitudinal direction...

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Abstract

The present invention relates to a method for providing a piece (2, 4) of a film (1) of a magnetoelastic material having an initial bending stiffness with an enhanced bending stiffness in a first direction. According to the method, the piece (2, 4) is provided with at least one scored line (5) in the first direction of the piece (2, 4). Furthermore, the piece (2, 4) is bent along at least one of the at least one scored lines (5) so as to provide the piece (2, 4) with a lasting bend in a direction transverse to the first direction, whereby an enhanced bending stiffness is provided in the firstdirection of the piece (2, 4). Also included are a product (11) obtained by the method, a sensor (11) and an absorbent structure and an absorbent article comprising the sensor (11).

Description

technical field [0001] The invention relates to a method for imparting an increased bending stiffness in a first direction to a film part of magnetoelastic material having an initial bending stiffness. Furthermore, the invention relates to a product comprising a film part of magnetoelastic material, obtained by said method. The invention also relates to a sensor comprising a thin film part of magnetoelastic material having an initial bending stiffness in a first direction. Furthermore, the invention relates to absorbent structures and absorbent articles comprising a sensor according to the invention and to an inductive absorption system comprising an absorbent structure according to the invention. Background technique [0002] There are many different types of absorbent articles such as diapers, pant diapers, incontinence underwear, sanitary napkins, bed protectors, wipes, towels, Tissues, tampon-like products, and wound or trauma dressings. Some of these known absorbent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/00G01N27/72A61F13/42H01F1/153
CPCG01N27/72G01N29/2412H01L41/125G01N2291/02863A61F13/42G01N2291/02845G01N2291/0255G01N2291/014H01F1/15308H10N35/101
Inventor S·内德斯塔姆
Owner ESSITY HYGIENE & HEALTH AB
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