Piezoelectric type rotating speed meter

A piezoelectric and rotational speed technology, applied in the direction of steering induction equipment, etc., can solve the problems of not being able to paste piezoelectric ceramics, the influence of input signals, and difficult processing, etc., and achieve the effects of low cost, improved signal-to-noise ratio, and low processing difficulty

Inactive Publication Date: 2013-09-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing harmonic oscillators of solid wave gyroscopes have some defects: first, due to the structural characteristics of the harmonic oscillators, high requirements are placed on the machining accuracy, the processing is relatively difficult, and the cost is also high; second, because the harmonic oscillators are mostly Ring, cup and hemispherical, piezoelectric ceramics cannot be pasted on the surface, and ceramic sheets are usually pasted on the external support structure, which inevitably affects the input signal

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
  • Piezoelectric type rotating speed meter
  • Piezoelectric type rotating speed meter
  • Piezoelectric type rotating speed meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Please refer to Figure 1 to Figure 5 and combine Figure 6 to Figure 7 shown. The piezoelectric tachometer of the present invention includes a base 18, a rotating shaft structure, a piezoelectric vibrating ring structure and a brush structure. The rotating shaft structure is fixed on the base 18 , the piezoelectric vibrating ring structure is installed on the stepped shaft 1 , and the brush structure is fixed on the stepped shaft 1 and the base 18 . The rotating shaft structure includes a stepped shaft 1 divided into four sections, a support plate 9, a bearing 4 and a bearing cover 2. The support plate 9 and the base 18 are fixedly connected by the fifth connecting screw 19, and the bearing 4 is connected by the first connecting screw through the bearing cover 2. 3 and the third connecting screw 10 are fixed on the support plate 9, and the first section a and the third section c of the stepped shaft are fixedly connected to the two bearings 4 respectively.

[0034] ...

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 discloses a piezoelectric type rotating speed meter which comprises a base, a rotating shaft structure, a piezoelectric vibration ring structure and an electric brush structure, wherein the piezoelectric vibration ring structure comprises a vibration ring which is externally octagonal and internally circular; piezoelectric ceramic sheets are respectively attached to eight outer surfaces of the vibration ring; and under the action of a piezoelectric effect and an inverse piezoelectric effect of the piezoelectric ceramic and the colcafe force, corresponding modals are excited by applying a voltage signal, so that the input angle speed can be finally calculated. The piezoelectric type rotating speed meter is simple in structure, convenience to process, low in cost, high in accuracy of input induction signals and high in precision and sensitivity and has a good development and application prospect.

Description

technical field [0001] The invention relates to a piezoelectric tachometer, which belongs to the field of angle and angular velocity sensors. Background technique [0002] The piezoelectric structure, which is driven by the piezoelectric effect of piezoelectric ceramics and induced by the inverse piezoelectric effect, is often used to measure angular velocity. Because of its simple structure, no rotating parts, higher reliability than ordinary gyroscopes, high sensitivity, long life, short start-up time, low power consumption, and low cost, it is often used as an angular velocity sensor and has broad research and application prospects. [0003] Solid wave gyro is a common form of piezoelectric gyroscope used as an angular velocity sensor. The existing solid wave gyro resonators are all ring-shaped symmetrical structures, and the common structural forms are ring, cup, and hemispherical. Working principle: Driven by piezoelectric means, the circularly symmetrical resonator of...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/56
Inventor 王寅黄卫清孙梦馨丁庆军
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap