CN207623284U - A kind of novel high-frequency shielding eddy current probe - Google Patents
A kind of novel high-frequency shielding eddy current probe Download PDFInfo
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- CN207623284U CN207623284U CN201721878902.0U CN201721878902U CN207623284U CN 207623284 U CN207623284 U CN 207623284U CN 201721878902 U CN201721878902 U CN 201721878902U CN 207623284 U CN207623284 U CN 207623284U
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- eddy current
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- probe
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Abstract
The utility model discloses a kind of novel high-frequencies to shield eddy current probe, based on the less feature of high-frequency vortex probe coil the number of turns, radioshielding eddy current probe is formed using flat eddy current coil and magnetic sheet, while ensureing shield effectiveness and high detection sensitivity effect, substantially reduce probe size, simplify manufacture craft, meet produce reality application requirement, makes that it is suitable for more detecting the more harsh detection work of environment.
Description
Technical field
The utility model is related to a kind of non-destructive testing devices, and eddy current probe is shielded more particularly to a kind of novel high-frequency.
Background technology
To solve the edge effect of EDDY CURRENT, meet the special detection demand of certain workpiece, conventional vortex magnetic screen is visited
For head using magnet ring or magnetic tank as external shield, effect can also increase coil induction reactance other than realizing and being electromagnetically shielded, and reduce copper
The effect of consumption.However, for some special occasions, examined environmental condition limitation, above method probe size is larger, Wu Fashi
It applies.
Invention content
The purpose of the utility model is to overcome the deficiencies of the prior art, provide a kind of novel high-frequency shielding eddy current probe,
Based on the less feature of high-frequency vortex probe coil the number of turns, visited using flat eddy current coil and magnetic sheet composition radioshielding vortex
Head.
Technical solution adopted by the utility model to solve its technical problems is：A kind of novel high-frequency shielding eddy current probe,
Including magnetic sheet, one or more flat eddy current coils, it is characterised in that：When one flat eddy current coil, magnetic sheet covering is fixed on
The area of flat eddy current coil upper surface, magnetic sheet is more than flat eddy current coil face area；It is multiple when multiple flat eddy current coils
Flat eddy current coil is side by side or array is fixed, and magnetic sheet covering is fixed on multiple flat eddy current coil upper surfaces, the area of magnetic sheet
More than the sum of multiple flat eddy current coil face areas；The magnetic sheet reinforces the height of flat eddy current coil below for poly- magnetic
Frequency alternation induced field, while shielding the external electromagnetic interference above it.The magnetic sheet uses ferrite or NdFeB material system
Make.The flat eddy current coil spirally prints making using coil plane spiral wrap or printed circuit board.
The utility model has the beneficial effects that a kind of novel high-frequency shields eddy current probe, it is based on high-frequency vortex probe coil
The less feature of the number of turns forms radioshielding eddy current probe using flat eddy current coil and magnetic sheet, is ensureing shield effectiveness and height
While detection sensitivity effect, probe size is substantially reduced, simplifies manufacture craft, meets produce reality application requirement, make
It is suitable for more detecting the more harsh detection work of environment.
The utility model is described in further detail with reference to embodiments, but a kind of novel high-frequency of the utility model
Shielding eddy current probe is not limited to embodiment.
Description of the drawings
Middle embodiment further illustrates the utility model below in conjunction with the accompanying drawings.
Fig. 1 is the probe schematic diagram of the utility model embodiment one.
Fig. 2 is the probe schematic diagram of the utility model embodiment two.
Fig. 3 is the probe schematic diagram of the utility model embodiment three.
In figure, 1. magnetic sheets, 2. flat eddy current coils.
Specific implementation mode
Embodiment one, such as Fig. 1, a kind of novel high-frequency shielding eddy current probe, including magnetic sheet 1, one or more flat vortex
Coil 2, it is characterised in that：When one flat eddy current coil 2, the covering of magnetic sheet 1 is fixed on 2 upper surface of flat eddy current coil, magnetic sheet 1
Area be more than 2 face area of flat eddy current coil；The magnetic sheet 1 reinforces flat eddy current coil 2 below for poly- magnetic
High-frequency alternating induced field, while shielding the external electromagnetic interference above it.The flat eddy current coil 2 uses coil plane spiral shell
Rotating winding or printed circuit board spirally print making.
Embodiment two, such as Fig. 2, a kind of novel high-frequency shielding eddy current probe, including 1, two flat eddy current coil 2 of magnetic sheet,
It is characterized in that：When two flat eddy current coils 2, two flat eddy current coils 2 are fixed side by side, and the covering of magnetic sheet 1 is fixed on two
The area of 2 upper surface of flat eddy current coil, magnetic sheet 1 is more than the sum of two 2 face areas of flat eddy current coil；The magnetic sheet 1 is used
Reinforce the high-frequency alternating induced field of flat eddy current coil 2 below in poly- magnetic, while it is dry to shield the external electromagnetic above it
It disturbs.The flat eddy current coil 2 spirally prints making using coil plane spiral wrap or printed circuit board.
Embodiment three, such as Fig. 3, a kind of novel high-frequency shielding eddy current probe, including magnetic sheet 1, multiple flat eddy current coils 2,
It is characterized in that：When multiple flat eddy current coils 2, multiple 2 arrays of flat eddy current coil are fixed, and the covering of magnetic sheet 1 is fixed on more
The area of a 2 upper surface of flat eddy current coil, magnetic sheet 1 is more than the sum of multiple 2 face areas of flat eddy current coil；The magnetic sheet 1
Reinforce the high-frequency alternating induced field of flat eddy current coil 2 below for poly- magnetic, while shielding the external electromagnetic above it
Interference.The magnetic sheet 1 is made of ferrite or NdFeB material.The flat eddy current coil 2 is spiral using coil plane
Winding or printed circuit board spirally print making.
Above-described embodiment only is used for further illustrating a kind of novel high-frequency shielding eddy current probe of the utility model, but this reality
It is not limited to embodiment with novel, it is made by the above technical examples according to the technical essence of the present invention any simple
Modification, equivalent variations and modification, each fall in the protection domain of technical solutions of the utility model.
Claims (3)
1. a kind of novel high-frequency shields eddy current probe, including magnetic sheet, one or more flat eddy current coils, it is characterised in that：One
When a flat eddy current coil, magnetic sheet covering is fixed on flat eddy current coil upper surface, and the area of magnetic sheet is more than flat eddy current coil
Face area；When multiple flat eddy current coils, multiple flat eddy current coils are side by side or array is fixed, and magnetic sheet covering is fixed on more
The area of a flat eddy current coil upper surface, magnetic sheet is more than the sum of multiple flat eddy current coil face areas；The magnetic sheet is used for
Poly- magnetic reinforces the high-frequency alternating induced field of flat eddy current coil below, while shielding the external electromagnetic interference above it.
2. a kind of novel high-frequency according to claim 1 shields eddy current probe, it is characterised in that：The magnetic sheet uses iron oxygen
Body or NdFeB material make.
3. a kind of novel high-frequency according to claim 1 shields eddy current probe, it is characterised in that：The flat eddy current coil
Making is spirally printed using coil plane spiral wrap or printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721878902.0U CN207623284U (en) | 2017-12-28 | 2017-12-28 | A kind of novel high-frequency shielding eddy current probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721878902.0U CN207623284U (en) | 2017-12-28 | 2017-12-28 | A kind of novel high-frequency shielding eddy current probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623284U true CN207623284U (en) | 2018-07-17 |
Family
ID=62830427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721878902.0U Active CN207623284U (en) | 2017-12-28 | 2017-12-28 | A kind of novel high-frequency shielding eddy current probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207623284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843646A (en) * | 2017-12-28 | 2018-03-27 | 爱德森（厦门）电子有限公司 | A kind of novel high-frequency shields eddy current probe |
-
2017
- 2017-12-28 CN CN201721878902.0U patent/CN207623284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843646A (en) * | 2017-12-28 | 2018-03-27 | 爱德森（厦门）电子有限公司 | A kind of novel high-frequency shields eddy current probe |
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