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

Charge output structure and piezoelectric acceleration sensor with same

A technology of output structure and charge, which is applied in the field of sensors, can solve the problems of insufficient overall stiffness and influence on frequency response characteristics, and achieve the effects of high fatigue strength, large output, improved frequency response characteristics and resonance

Pending Publication Date: 2019-01-18
FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the insufficient overall rigidity of products in the prior art and the defects that affect the frequency response characteristics, thereby providing a charge output structure with high overall rigidity, good frequency response characteristics and resonance and its piezoelectric accelerometer

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
  • Charge output structure and piezoelectric acceleration sensor with same
  • Charge output structure and piezoelectric acceleration sensor with same
  • Charge output structure and piezoelectric acceleration sensor with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

[0035] Such as Figure 2-5 A specific implementation of the charge output structure shown includes: a base 8, which is sheathed with an insulating member 3, a piezoelectric element, and a mass block 6 along its radial direction from the inside to the outside; the pretensioning member 7 is sheathed On the out...

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 invention relates to the field of sensor technology, and particularly to a charge output structure. The structure includes a base; and a pre-tensioning member, which is arranged on outer circumference of a mass block in a sleeving manner, and has an annular structure of which volume is contracted with temperature increasing for applying radial-direction pre-tensioning force to an insulating member, a piezoelectric element and the mass block. The insulating member, the piezoelectric element and the mass block are sequentially arranged in a sleeving manner from an inside to an outside alonga radial direction of the base. The invention also provides a piezoelectric acceleration sensor with the above-described charge output structure. The structure and the sensor greatly increase contactstiffness of the overall structure, and thus improve the overall frequency response characteristics and resonance.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a charge output structure and a piezoelectric acceleration sensor therein. Background technique [0002] The signal output by the piezoelectric acceleration sensor is proportional to the vibration acceleration of the system. The main problem is that the assembly of various materials leads to insufficient overall contact stiffness, resulting in low frequency response characteristics and low resonance. In order to ensure the firm assembly between different materials, the currently widely used design is to use epoxy adhesive bonding. Although this method solves the problem of bonding between different materials, it does not affect the quality of the epoxy adhesive between the connecting layers and The operation requirements are very high. If the epoxy glue contains impurities or air bubbles are generated during operation, the overall rigidity of the product will be insufficient, the...

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): G01P15/09G01P1/02
CPCG01P1/02G01P15/09G01P1/023H10N30/302H10N30/50
Inventor 聂泳忠付志华聂川曾婷芳
Owner FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
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