CN2558021Y - Identifying magnetic head for RMB note - Google Patents
Identifying magnetic head for RMB note Download PDFInfo
- Publication number
- CN2558021Y CN2558021Y CN02243526U CN02243526U CN2558021Y CN 2558021 Y CN2558021 Y CN 2558021Y CN 02243526 U CN02243526 U CN 02243526U CN 02243526 U CN02243526 U CN 02243526U CN 2558021 Y CN2558021 Y CN 2558021Y
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- Prior art keywords
- magnetic
- utility
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- chips
- magnetic head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Disclosed is a RMB identification magnetic read head which comprises a casing (1), a central chip (4) and coils (5), (12); wherein the coils and the central chip are arranged on a coil former (7), and side chips (2) are respectively arranged at both sides of the central chip. The utility model is characterized in that a magnetic amplifying circuit board (8) is arranged in the permalloy alloy casing. With the utility model, the signals collected by the central chip are amplified by the magnetic amplifying circuit board and then output; the output signals has good characteristics and high sensitivity; the casing made from beryllium-permalloy alloy has good shielding performance and can effectively resist the interference of outside electromagnetic fields. The RMB identification magnetic read head produced according to the design theme of the utility model can surely bring active application effect to the counterfeit money identifying instrument industry.
Description
Technical field
The utility model is about the improvement of Magnetic Sensor invention, particularly be the improvement invention of Renminbi identifying false magnetic head, what be specifically related to is the invention that the magnetic magnification circuit plate is set in the housing of magnetic head.
Background technology
In the prior art, the Renminbi identifying false magnetic head is only by chips, the magnetoelectric transducer that housing and coil are formed, the output signal of this magnetoelectricity conversion is very faint, belong to microvolt to the millivolt signal magnitude, because the signal of the single-chip microcomputer demand of digital circuit or Intelligent treatment is the three ten-day period of hot season, several milliamperes current signal, therefore necessity could be used after amplifying, and its amplifying circuit is exposed to outside the housing of magnetic head, make the electromagnetic signal of high frequency drive straight in, interference as mobile phone signal, signal after the amplification has than higher background noise and disturbing pulse, thereby influences the false distinguishing ability of magnetic head.
Summary of the invention
In view of the problem that known technology exists, the purpose of this utility model aims to provide a kind of rational in infrastructure, simplicity of design, and advantages of good shielding performance has good anti-external electromagnetic field interference performance, highly sensitive Renminbi identifying false magnetic head.For achieving the above object, the utility model takes following scheme to finish, this Renminbi identifying false magnetic head includes housing, chips and coil, described chips and coil are arranged on the coil former, two groups of coil phase on the coil former are opposite, the both sides of described chips are provided with the limit chip, the magnetic induction assembly that described limit chip and chips and coil former constitute is formed magnetoelectric transducer, it is characterized in that being provided with in the described housing magnetic magnification circuit plate, the magnetic amplifying circuit on the described magnetic magnification circuit plate is installed in the beryllium Mo alloy housing of shielding.The utility model collects chips the signal of Renminbi, after circuit on the magnetic magnification circuit plate amplifies, its output signal feature is good, highly sensitive, and the housing that adopts beryllium Mo alloy to make, its advantages of good shielding performance, the interference that can resist external electromagnetic field effectively, according to the Renminbi identifying false magnetic head of the utility model design motif made, bring positive result of use will for system discriminating machine for fake RMB industry.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is a structure cut-open view of the present utility model;
Wherein number 9 and be electronic component.
Specific embodiment
Accompanying drawing has been represented structure of the present utility model and embodiment, further describes each relevant details of embodiment below more in conjunction with the accompanying drawings.As Fig. 1, this Renminbi identifying false magnetic head includes housing 1, chips 4 and two groups of coils 5 that phase place is opposite, 12, described chips 4 and two groups of coils 5,12 are arranged on the coil former 7, be provided with limit chip 2 on the both sides of chips 4, described limit chip 2 and chips 4 are through strict heat treated beryllium Mo alloy material, two limit chips 2 and chips 4 and coil 5, the 12 magnetic induction assemblies that constitute have been formed magnetoelectric transducer, two groups of coils 5 that phase place is opposite and in parallel, 12 windings make with the chips 4 that has slit sheet 3 and the utlity model has good anti-external magnetic field interference performance, described slit sheet 3 makes the magnetic core sensitive area keep certain slit, suitably select thickness and two groups of coils 5 of slit sheet 3 and chips 4, the inductance value of 12 windings, make it reach frequency response characteristic that the Renminbi false distinguishing uses and enough sensitivity, in housing 1, be provided with magnetic magnification circuit plate 8, this magnetic magnification circuit plate 8 makes the superperformance of magnetoelectric transducer of magnetic head obtain performance and guarantees, described housing 1 is made for beryllium Mo alloy shielding material, described coil former 7 is installed in the housing 1 by aluminium alloy core frame 6, after the epoxy resin sealing, make this magnetic head both have enough physical strengths, have good anti-external electromagnetic field interference capability again.When the utility model is worked, chips 4 collects the signal of Renminbi, magnetoelectric transducer by chips 4, limit chip 2 and coil 5,12 compositions, magnetoelectric transducer changes magnetic signal into current signal, current signal is transported to magnetic magnification circuit plate 8 by the binding post 10 of output terminal, after the circuit on the circuit board 8 amplifies electric current, the electric current amplifying signal is transported to next program, just can correctly handle the magnetic ink of Renminbi the 4th edition and the 5th edition safety line signal, reach the purpose of eliminating the false and retaining the true.The utility model is simple in structure, and is highly sensitive, and has very strong antijamming capability, compared with prior art, has substantive distinguishing features and progress.
Claims (2)
1, a kind of Renminbi identifying false magnetic head, include housing (1), chips (4) and coil (5), (12), described coil (5) (12) and chips (4) are located on the coil former (7), the both sides of described chips (4) are provided with limit chip (2), it is characterized in that being provided with in the described housing (1) magnetic magnification circuit plate (8).
2, Renminbi identifying false magnetic head as claimed in claim 1 is characterized in that the magnetic amplifying circuit on the described magnetic magnification circuit plate (8) is installed in the beryllium Mo alloy housing (1) of shielding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02243526U CN2558021Y (en) | 2002-07-26 | 2002-07-26 | Identifying magnetic head for RMB note |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02243526U CN2558021Y (en) | 2002-07-26 | 2002-07-26 | Identifying magnetic head for RMB note |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558021Y true CN2558021Y (en) | 2003-06-25 |
Family
ID=33715747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02243526U Expired - Fee Related CN2558021Y (en) | 2002-07-26 | 2002-07-26 | Identifying magnetic head for RMB note |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558021Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456073A (en) * | 2013-09-04 | 2013-12-18 | 苏州星火磁电技术有限公司 | Magnetism detection magnetic head for money verification |
-
2002
- 2002-07-26 CN CN02243526U patent/CN2558021Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456073A (en) * | 2013-09-04 | 2013-12-18 | 苏州星火磁电技术有限公司 | Magnetism detection magnetic head for money verification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |