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Magnetic moment orientation device for identifying magnetic graph on magnetic stripe and identification method of magnetic moment orientation device

A magnetic and magnetic stripe technology, used in character and pattern recognition, banknote authenticity inspection, instruments, etc., can solve the problems of limiting the anti-counterfeiting ability of RMB, unable to detect the magnetic moment orientation of magnetic medium materials, and low ability to identify the authenticity of RMB. , to achieve the effect of suppressing common mode magnetic field interference, improving anti-counterfeiting ability, and strong common mode magnetic field interference

Active Publication Date: 2015-05-20
WUXI LER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the RMB authenticity detector can only detect the presence and strength of the magnetic medium material in the RMB, but cannot detect the magnetic moment orientation of the magnetic medium material in the RMB, so it cannot detect the magnetic medium material in the RMB. Magnetic moment orientation as the basis for judging the authenticity of RMB
Therefore, the RMB authenticity identifying instrument of the prior art has a relatively low ability to identify the authenticity of the RMB, and limits the improvement of the RMB anti-counterfeiting ability

Method used

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  • Magnetic moment orientation device for identifying magnetic graph on magnetic stripe and identification method of magnetic moment orientation device
  • Magnetic moment orientation device for identifying magnetic graph on magnetic stripe and identification method of magnetic moment orientation device
  • Magnetic moment orientation device for identifying magnetic graph on magnetic stripe and identification method of magnetic moment orientation device

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Embodiment 1

[0038] The magnetic moment orientation device for identifying the magnetic pattern on the magnetic strip provided by the present embodiment includes a permanent magnet 1, an L-shaped soft magnetic body 2 and a magnetoresistive chip 3, such as figure 1 and figure 2 shown. The soft magnet 2 includes a bottom 21 and side walls 22 . In this embodiment, the sidewalls 22 of the permanent magnet 1 and the soft magnet 2 are, for example, rectangular parallelepiped. The permanent magnet 1 is arranged on the bottom 21 of the soft magnet 2 . One side 11 of the permanent magnet 1 faces the side wall 22 of the soft magnet 2 , and a slit 4 is formed between the side 11 of the permanent magnet 1 and the side wall 22 of the soft magnet 2 . The magnetoresistive chip 3 is disposed outside the sidewall 22 of the soft magnetic body 2 . The magnetization direction 5 of the permanent magnet 1 is perpendicular to the bottom 21 of the soft magnetic body 2 , that is, the magnetization direction ...

Embodiment 2

[0047] The magnetic moment orientation device for identifying the magnetic pattern on the magnetic strip provided by the present embodiment includes a permanent magnet 1, an L-shaped soft magnetic body 2 and a magnetoresistive chip 3, such as Figure 8 and Figure 9 shown. The soft magnet 2 includes a bottom 21 and side walls 22 . The permanent magnet 1 is arranged on the bottom 21 of the soft magnet 2 . One side 11 of the permanent magnet 1 faces the side wall 22 of the soft magnet 2 , and a slit 4 is formed between the side 11 of the permanent magnet 1 and the side wall 22 of the soft magnet 2 . In this embodiment, a first inclined surface 13 is provided between the side surface 11 of the permanent magnet 1 and its upper end surface 12 , and a second inclined surface 24 is provided between the inner surface 25 of the side wall 22 of the soft magnetic body 2 and its upper end surface 23 . The first slope 13 and the second slope 24 are in an inverted "eight" shape. The mag...

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Abstract

The invention discloses a magnetic moment orientation device for identifying a magnetic graph on a magnetic stripe. The device comprises a permanent magnet, an L-shaped soft magnet and a magnetoresistance chip. The soft magnet comprises a bottom part and a side wall; the permanent magnet is arranged at the bottom of the soft magnet; one side face of the soft magnet is opposite to the side wall of the soft magnet; a slit is formed between the side face of the soft magnet and the side wall of the soft magnet; the magnetoresistance chip is arranged at the outer side of the side wall of the soft magnet; the direction of the magnetization intensity of the permanent magnet is vertical to the bottom part of the soft magnet; and the direction of a magnetic field formed above the slit by the permanent magnet and the soft magnet is parallel with the upper end face of the permanent magnet and the upper end of the soft magnet. According to the magnetic moment orientation device for identifying the magnetic graph on the magnetic stripe, the authenticity of paper money can be identified by detecting the magnetic moment orientation of a magnetic dielectric material in the magnetic graph on the magnetic stripe of the paper money.

Description

technical field [0001] The invention relates to a magnetic moment orientation device for identifying magnetic patterns on a magnetic strip and an identifying method thereof. Background technique [0002] Usually, banknotes such as RMB contain magnetic strips with magnetic patterns on them, and the magnetic patterns contain magnetic media materials. The authenticity of the RMB can be identified by using the RMB authenticity identification device to detect the magnetism of the magnetic medium material in the RMB. In the prior art, the RMB authenticity identifier uses the presence or absence of magnetism of the magnetic medium material in the RMB as the basis for determining the authenticity of the RMB, or uses the magnetic strength or weakness of the magnetic medium material in the RMB as the basis for determining the authenticity of the RMB. [0003] When using the RMB authenticity identification device to identify the authenticity of the RMB, the permanent magnet installed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/20G07D7/04
Inventor 白建民
Owner WUXI LER TECH CO LTD
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