Unlock instant, AI-driven research and patent intelligence for your innovation.

A method of making a miniature fluxgate sensor

The technology of a fluxgate sensor and its manufacturing method is applied in the direction of magnetic field measurement and the size/direction of the magnetic field using the principle of magnetic flux control, which can solve the problems of high-frequency excitation, low sensitivity, and limited application, and achieve high sensitivity, Effect of small size, improved resolution and accuracy

Inactive Publication Date: 2011-11-30
HARBIN INST OF TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These structures can achieve the performance of fluxgate sensors, but due to the limitation of structural process materials, the fluxgate sensors realized by the above processes generally have the characteristics of low sensitivity, high noise, and high frequency excitation.
Thereby limiting its application in the field of magnetic measurement

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
  • A method of making a miniature fluxgate sensor
  • A method of making a miniature fluxgate sensor
  • A method of making a miniature fluxgate sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0017] In conjunction with the accompanying drawings, in this embodiment, the surface of the mold is first cleaned with an organic solvent, and then a bundle of glass fibers and cobalt-based nano-material soft magnetic wires are bundled into a bundle, put into the mold, the resin is prepared in a good proportion, injected into the mold, and heated Molding, demoulding. Wind the coil on the integrally formed magnetic core and skeleton 3 after demolding, first wind the excitation coil 1 on the coil winding post 11, after the number of winding turns is completed, directly wind the coil winding post in the same winding direction Wind the other half of the excitation coil 1 on 9. After the excitation coil is wound, the skeleton is cut off at the disconnected part 7 of the coil, the winding post 9 is turned upside down, and the plug 10 is docked with the p...

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 manufacturing method of a miniature fluxgate sensor. The fluxgate sensor is composed of a skeleton, a magnetic core, an excitation coil and an induction coil. And together, the induction coil is wound outside the two skeletons to form a miniature fluxgate sensor. In the present invention, the magnetic core and the frame are integrally molded by mold casting, then an excitation coil is wound on the frame, the frames are cut and reversed and joined together, and an induction coil is wound outside the two frames to form a miniature fluxgate sensor. The present invention has a simple structure, because the sensor skeleton is made of a mold, and the two differential skeletons have good consistency, which can reduce the noise caused by the asymmetry of the sensor and improve the resolution and precision of the sensor. Realize the miniaturization of the sensor and greatly reduce the size of the sensor.

Description

(1) Technical field [0001] The invention relates to a miniature fluxgate sensor, in particular to a weak magnetic field detection sensor. (2) Background technology [0002] The fluxgate sensor has high resolution, wide range of weak magnetic field measurement, reliable, simple, economical and durable, can directly measure the magnetic field component and is suitable for use in high-speed motion systems. In recent years, with the micro-electro-mechanical system (MEMS) technology and integrated circuit technology becoming more and more mature, fluxgate sensors have begun to develop in the direction of integration and miniaturization. [0003] At present, the miniaturized fluxgate sensor is mainly implemented by technologies such as PCB technology, CMOS technology, and MEMS technology. The probe structures made by the above-mentioned various processes are mainly divided into two types, one is to use a planar coil structure, and the other is to use a solenoid to realize the pro...

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): G01R33/02G01R33/04
Inventor 刘晓为陈伟平董长春
Owner HARBIN INST OF TECH