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

Accelerometer

A technology of accelerometer and magnetic pole piece, which is applied in the direction of acceleration measurement using inertial force, etc. It can solve the problems of quartz pendulum accelerometers with limited impact resistance and vibration resistance, high machining accuracy requirements, and complex manufacturing processes. Achieve the effect of low price, firm solder joints and moderate precision

Active Publication Date: 2014-08-20
北京中联博韬科技咨询有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the quartz pendulum accelerometer has limited shock resistance and vibration resistance, poor reliability, complex manufacturing process, high machining accuracy requirements, and cannot reduce costs. Its popularization and application has been greatly restricted.

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
  • Accelerometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] see figure 1 , shows a cross-sectional view of the accelerometer of the present invention, the accelerometer is cylindrical as a whole, and the outer cylindrical surface is the installation reference; and the upper and lower parts are symmetrical along the small translation axis 8, and the left and right parts are symmetrical along the central axis. In the middle of the accelerometer is a magnetic pole piece 2 with an annular hollow structure, and a yoke 3 is arranged outside the magnetic pole piece 2. In the middle of the structure of the magnetic pole piece 2, permanent magnets 1 are arranged symmetrically on both sides of the small translation axis, and the two sides of the magnetic pole piece 2 structure are symmetricall...

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 an accelerometer, which comprises a magnetic pole piece with a ring structure. There is a yoke in the magnetic pole piece. Permanent magnets are symmetrically arranged in the middle of the magnetic pole piece structure and on both sides of a small translation axis. pull coil; the small axis of translation extends out of the magnetic pole piece, copper cores are installed at both ends, and displacement sensor windings are arranged on both sides of the copper core; permanent magnets, magnetic pole pieces, yokes and push-pull coils constitute an electric force generator, and The pulling coil, the small translation shaft and the copper core form the sensitive mass, and the leaf spring is used to support the sensitive mass. The accelerometer of the present invention is supported by a metal leaf spring with high longitudinal rigidity and low axial rigidity to support the sensitive mass, fundamentally improving the ability of anti-shock and anti-vibration, and will not break under extreme shock conditions.

Description

technical field [0001] The invention relates to the field of measuring equipment, in particular to an accelerometer with high stability and precision. Background technique [0002] The development of modern drilling technology requires gravity accelerometers with high reliability and moderate precision. In recent decades, quartz pendulum accelerometers have been gradually adopted in drilling measurement instruments. The thickness of the pendulum plate of the quartz pendulum accelerometer is limited (only 20-30 μm). Although the anti-shock measures such as limit are taken, it often fails due to the breakage of the pendulum plate, and the gold film welding wire falls off. Wait for failure. Therefore, the quartz pendulum accelerometer has limited shock resistance and vibration resistance, poor reliability, complex manufacturing process, high machining accuracy requirements, and cannot reduce costs. Its popularization and application are greatly restricted. Contents of the i...

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 Patents(China)
IPC IPC(8): G01P15/12
Inventor 桂德洙
Owner 北京中联博韬科技咨询有限公司
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