Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Piezo-electric composite sensor

A piezoelectric composite and piezoelectric composite material technology, which is applied in the field of piezoelectric sensors using piezoelectric composite materials, can solve the problems of limited adjustment range of electrode thickness, weakened electrical properties of thin film layers, and fragile electrodes, and achieves excellent performance. Piezoelectric and dielectric properties, ease of processing, effect of reducing process cost

Inactive Publication Date: 2008-06-04
ATSUDEN
View PDF3 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this process is an additional process independent of the piezoelectric composite molding process, there is a problem in that the process is very complicated and the cost increases accordingly
In addition, since the electrodes are formed in the metal thin film, there is a problem that the electrodes are very fragile due to impact fragility and mechanical weakness
Therefore, there is a problem that the film will delaminate or its electrical properties will weaken during use
Since the electrode is formed of metal and thus has a very small thickness, there is a disadvantage that the thickness adjustment range of the electrode is very limited

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Piezo-electric composite sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] [46] Preferred embodiments of the piezoelectric composite sensor according to the present invention will be described below with reference to the drawings.

[0050] [47] FIG. 2 is a sectional view showing a piezoelectric composite sensor according to a preferred embodiment of the present invention.

[0051] [48] ​​Referring to the figure, the piezoelectric composite sensor includes a piezoelectric material layer 10 and electrodes 20 formed on both surfaces of the piezoelectric material layer.

[0052] [49] Ceramic materials or electrodes in traditional products are easily broken, when the piezoelectric composite sensor constructed as shown in Figure 2 is applied to traditional products, it can improve product reliability and durability, and prolong product life. For example, the advantageous features of the present embodiment can be effectively applied to an automobile tire pressure management system, which functions to notify dangerous situations in advance by sensing ...

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

PUM

No PUM Login to View More

Abstract

The present invention provides a piezoelectric composite sensor comprising a piezoelectric material layer formed of a piezoelectric composite obtained by mixing piezoelectric material powder with a polymer, and electrodes formed of a conductive composite or conductive polymer obtained by mixing conductive filling particles with a polymer matrix and formed on both surfaces of the piezoelectric material layer. The piezoelectric composite sensor of the present invention has advantages of superior piezoelectric and dielectric properties, high mechanical strength, improved reliability and process flexibility, a simplified process and reduced process costs, and improved productivity.

Description

technical field [0001] [01] The present invention relates to a piezoelectric sensor, and more particularly, to a piezoelectric sensor using a piezoelectric composite material. Background technique [0002] [02] Functional ceramics having dielectric properties, piezoelectric properties, etc. are used in various electric and electronic parts in a wide range of fields. For example, functional ceramics are used in piezoelectric elements such as various actuators, sensors, and resonators. Functional ceramics with dielectric properties include silicon dioxide (SiO 2 ), alumina (Al 2 o 3 ), aluminum nitride (AlN), barium titanate (BaTiO 3 )wait. Functional ceramics having piezoelectric properties include lead zirconate titanate (PZT) and the like. [0003] [03] Piezoelectricity is called piezoelectricity, and is characterized in that when a piezoelectric element is pressed in a certain direction, an electric current is generated because dielectric poles proportional to the ex...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01L41/04H01L41/16
CPCH01L41/087H01L41/22H01L41/047H01L41/1132H01L41/333Y10T29/42H10N30/878H10N30/60H10N30/302H10N30/084H10N30/80H10N30/857H10N30/877
Inventor 金东局
Owner ATSUDEN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com