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

Magnetic probe and magnetic field sensor having same

A technology of magnetic field sensor and magnetic probe, which is applied in the direction of instruments, measuring magnetic variables, measuring devices, etc., to achieve the effect of good linear relationship

Inactive Publication Date: 2015-08-19
BEIJING CEGT SCI & TECH
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is still a lot of room for improvement in the sensitivity and linearity of the existing magnetic field sensors.

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
  • Magnetic probe and magnetic field sensor having same
  • Magnetic probe and magnetic field sensor having same
  • Magnetic probe and magnetic field sensor having same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] figure 1 shows a perspective view of the magnetic probe of the present invention, figure 2 shown figure 1 Front view of the magnetic probe in, image 3 shown figure 1 Cross-sectional view of the magnetic probe in .

[0030] In one embodiment, the magnetic probe of the present invention includes: a magnetic component 11 , a skeleton 13 , and a detection coil 14 .

[0031] The skeleton 13 is cylindrical, and there is a through cavity inside the skeleton 13 that runs through the skeleton 13 along the length direction, preferably a cylindrical cavity. The skeleton 13 is insulated and made of non-magnetic material, preferably by injection molding of LCP liquid crystal polymer. LCP is a polymer material, an intermediate state polymer between solid crystal and liquid. Although its molecular arrangement is not as three-dimensional as solid crystal, it is not as disordered as liquid, but has a certain (one-dimensional or two-dimensional) orderliness.

[0032] The magneti...

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 provides a magnetic probe comprising the following elements: a frame having a cavity; a magnetic part penetrating the frame through the cavity and allowing pulse current to pass; a detection coil winding on an outer surface of the frame. The invention also provides a magnetic field sensor comprising the following structures: an oscillating source circuit used for generating an oscillating source signal; a magnetic detection circuit used for detecting outer magnetic field and comprising the magnetic probe, wherein the oscillating source signal injects into the magnetic part of the magnetic probe, and the magnetic detection circuit outputs a superpose superheterodyne signal; a signal conditioning circuit comparing the oscillating source signal with the superpose superheterodyne signal so as to obtain an outer magnetic field signal. The magnetic field sensor can detect high speed field change weak magnetic field in normal temperature, can detect space weak PT-level magnetic field, and can detect a space weak gradient magnetic field.

Description

technical field [0001] The present invention relates to electronic devices, and more specifically, to a magnetic probe and a magnetic field sensor including the magnetic probe. [0002] Background technique [0003] Magnetic field sensors play a vital role in modern technology and are widely used in many engineering and industrial fields, such as high-density magnetic recording, navigation, target detection and tracking, anti-theft systems, non-destructive testing, magnetic marking and labels, geomagnetic measurement , space research, magnetic field measurement on aircraft or ships, and human biomagnetic measurement. [0004] There are many kinds of magnetic field sensors, such as: inductive sensors, fluxgate sensors, Hall-effect (Hall-effect) magnetic field sensors, magneto-optical sensors, giant magnetoresistance (Giant Magneto Impedance, GMR) sensors, resonant magnetometers, superconducting quantum Interferometer (SQUID) gradiometer, TMR (Tunnel Magnetoresistance, TMR) ...

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): G01R33/09
Inventor 杨美云陈钢
Owner BEIJING CEGT SCI & TECH
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