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Method and apparatus for making piezoelectric transducers

A piezoelectric transducer, piezoelectric technology, applied in piezoelectric/electrostrictive/magnetostrictive devices, circuits, electrical components, etc., which can solve the problem of time-consuming, inapplicable equipment and methods, and expensive use of tensioning devices. question

Inactive Publication Date: 2016-12-07
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such tensioning devices are relatively expensive and their use is extremely time-consuming
Such devices and methods are thus essentially unsuitable, especially for sequential processes in the multiple manufacture of piezoelectric transducers

Method used

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  • Method and apparatus for making piezoelectric transducers
  • Method and apparatus for making piezoelectric transducers
  • Method and apparatus for making piezoelectric transducers

Examples

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Embodiment Construction

[0029] figure 1 The diagram shows a longitudinal section through a piezoelectric transducer 1 which can be produced using the production devices 2 a and 2 b shown in the other figures. This is an embodiment as a piezoelectric bending transducer, but the invention is not limited to this type of piezoelectric transducer 1 .

[0030]The piezoelectric transducer 1 has a layer structure with a first substrate in the form of a carrier substrate 2 and a second substrate in the form of a piezoelectric substrate 3 . The two substrates 2 , 3 each have a planar extent and are placed one above the other in a layer direction 4 perpendicular to their extent plane and are bonded together by means of an adhesive 5 arranged between them, in particular layered. connected to each other.

[0031] The carrier substrate 2 has magnetic properties, in particular ferromagnetic properties. In this embodiment it is made of steel.

[0032] The piezoelectric substrate 3 has, as a core, a piezoelectric...

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PUM

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Abstract

A method and a device are disclosed for producing a piezoelectric transducer having a magnetic carrier substrate (2) and a piezoelectric substrate bonded to the carrier substrate by means of an adhesive (5) ( 3). During the bonding process the two substrates ( 2 , 3 ) are pressed against each other by a magnetic tensioning device ( 18 ). In this case, a magnetic force is introduced into the carrier substrate ( 2 ), whereby the carrier substrate and the supported piezoelectric substrate ( 3 ) are tensioned.

Description

technical field [0001] The invention relates to a method for producing a piezoelectric transducer having substrates in the form of a magnetic carrier substrate and a piezo-electrically excitable piezoelectric substrate, each stacked one above the other in the layer direction, the substrates being The adhesive located between them is fixed to each other, wherein the two substrates are laminated on top of each other to form a substrate assembly after prior application of an adhesive on at least one of the substrates, and are tensioned against each other in the layer direction. [0002] The invention also relates to a device for producing a piezoelectric transducer having a substrate in the form of a magnetic carrier substrate and a piezoelectrically excitable piezoelectric substrate, each stacked one above the other in the layer direction, The substrates are fixed to each other by means of an adhesive located between them, the device having at least one tensioning device, by mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/313
CPCH10N30/2042H10N30/073
Inventor S.绍茨C.派因
Owner FESTO AG & CO KG