Magnetoelectric coupling device

A magnetoelectric coupling and piezoelectric device technology, applied in the direction of electrical components, device parts, device material selection, etc., to achieve the effect of expanding the application range and improving sensitivity
CN101047225AInactive Publication Date: 2007-10-03CITY UNIVERSITY OF HONG KONG
0 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CITY UNIVERSITY OF HONG KONG
Publication Date
2007-10-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A magneto-electric coupling component is prepared as setting piezoelectric component between two magnetostrictive plates in order to convert displacement generated by said magnetostrictive plates to be electric signal and holding said piezoelectric component being coupled together with two magnetostrictive plates by clamping fixture.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a magnetoelectric coupling device, in particular to a magnetoelectric coupling device with a high magnetoelectric coupling coefficient. Background technique

[0002] In the 1980s, ferromagnetic materials with magnetostrictive effects and piezoelectric materials with piezoelectric effects were formed into composite materials, and the magnetoelectric coupling coefficient was greatly improved. Especially two kinds of materials are made into sheets, and then laminated, the performance is better (C.W.Nan, Phys.Rev.B50, 6082(1994)). The most widely used piezoelectric materials are PbZrO 3 -PbTiO 3 (Lead zirconate titanate, PZT) ceramics, BaTiO 3 Ceramic, (BaSr)Nb 2 o 6 Ceramics, Pb(Mg 1 / 3 Nb 2 / 3 )O 3 -PbTiO 3 (PMN-PT) single crystal, Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -PbTiO 3 (PZN-PT) single crystal, P(VDF-TrFE) polymer, etc.; magnetostrictive materials include Tb 1-x Dy x Fe 2 (Terbium Dysprosium Iron, Terfenol-D), CoFe 2 o 4 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More