CN221173257U - Thickness measuring probe with magnetic induction and eddy current effect sensor and ruby - Google Patents
Thickness measuring probe with magnetic induction and eddy current effect sensor and ruby Download PDFInfo
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- CN221173257U CN221173257U CN202321887154.8U CN202321887154U CN221173257U CN 221173257 U CN221173257 U CN 221173257U CN 202321887154 U CN202321887154 U CN 202321887154U CN 221173257 U CN221173257 U CN 221173257U
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- coil
- magnetic core
- magnetic
- ruby
- eddy current
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 108
- 239000000523 sample Substances 0.000 title claims abstract description 39
- 230000006698 induction Effects 0.000 title claims abstract description 30
- 239000010979 ruby Substances 0.000 title claims abstract description 26
- 229910001750 ruby Inorganic materials 0.000 title claims abstract description 26
- 230000000694 effects Effects 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 9
- 230000005284 excitation Effects 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 18
- 238000000576 coating method Methods 0.000 abstract description 18
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000002985 plastic film Substances 0.000 abstract 1
- 229920006255 plastic film Polymers 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a thickness measuring probe containing magnetic induction and eddy current effect sensors and provided with ruby, wherein a probe component mainly comprises a magnetic core base, a protective sleeve, a magnetic core, ruby, a magnetic shielding cover, an exciting coil, an induction coil, an eddy current coil, a first coil positioning column and a second coil positioning column, and the components form the magnetic induction sensor and the eddy current effect sensor. When the distance between the probe and the metal object to be measured changes, the electric signal of the sensor coil also changes, and the thickness of the surface coating and the plating layer of the metal can be measured by detecting the change of the electric signal. In addition, ruby is arranged at one end of the magnetic core (the contact position of the probe and the measured object) so as to strengthen the wear resistance of the probe and prolong the service life of the probe. The probe of the utility model can be used for nondestructively measuring the thickness of a non-conductive coating on a metal surface and a non-ferromagnetic metal coating on a ferromagnetic metal (such as iron, nickel and cobalt) surface, and particularly used for measuring the thickness of paint or a galvanized layer on the surface of iron, stainless steel and the thickness of paint or a plastic film on the surface of aluminum and copper.
Description
Technical Field
The utility model belongs to the technical field of probes, and particularly relates to a thickness measuring probe which comprises a magnetic induction and eddy current effect sensor and is provided with ruby.
Background
The probe of the coating thickness gauge adopts an electromagnetic induction principle, presses the probe on a non-magnetic layer on a magnetic conductive material, and can be used for nondestructively measuring the thickness of a non-magnetic coating on a magnetic metal substrate by utilizing the variation difference of magnetic flux close to the ferromagnetic substrate.
The existing coating thickness gauge probe has the defects that the probe and the host are split, so that the overall structure is relatively large, the probe and the host are required to be connected through a connecting wire, the detection range and the detection position are affected, the operation is inconvenient, the service life is short and the like, and the performance index of the instrument can be greatly affected.
Disclosure of utility model
In order to solve the problems, the utility model discloses a thickness measuring probe which comprises magnetic induction and eddy current effect sensors and is provided with ruby, wherein the probe assembly comprises a magnetic core base, a protective sleeve, a magnetic core, ruby, a magnetic shielding cover, an exciting coil, an induction coil, an eddy current coil, a first coil positioning column and a second coil positioning column;
The magnetic core is made of a magnetic conduction material, the magnetic conduction material comprises iron, iron alloy, nickel or nickel alloy, and one end of the magnetic core is fixedly bonded with the ruby;
The magnetic core base, the inner diameter of the magnetic core base near one end of the magnetic core shares a coaxiality with the outer diameter of the magnetic core, and adopts an adhesive connection mode;
the inner diameter of the exciting coil and the outer diameter of the magnetic core share a coaxiality, and a clearance fit mode is adopted;
the inner diameter of the induction coil and the outer diameter of the magnetic core share a coaxiality, and a clearance fit mode is adopted;
The inner diameter of the eddy current coil and the outer diameter of the magnetic core share the same coaxiality, and a clearance fit mode is adopted;
A first coil positioning post positioned between the induction coil and the eddy current coil;
a second coil positioning post positioned between the induction coil and the excitation coil;
The magnetic shielding cover is made of magnetic conduction materials and is used for inhibiting interference of a low-frequency magnetic field, the inner diameter of the magnetic shielding cover and the outer diameter of the magnetic core base close to one end of the magnetic core share the same coaxiality, and a clearance fit mode is adopted;
The inner diameter of the protection sleeve shares a coaxiality with the outer diameter of the magnetic shielding cover, and adopts a clearance fit mode.
Further, the inner diameter of the round hole at one end of the protective sleeve away from the magnetic core base shares a coaxiality with the outer diameter of the ruby, and the ruby part is exposed out of the protective sleeve.
Furthermore, the magnetic core is sequentially sleeved with the excitation coil, the second coil positioning column, the induction coil, the first coil positioning column and the eddy current coil along one end, close to the magnetic core base, of the protective sleeve.
The coating thickness detection method comprises the following steps:
pressing the detection probe on the coating to be detected;
When the detection probe contacts with the coating, the probe and the magnetic metal matrix form a closed magnetic circuit, the magnetic resistance and the inductance of the probe coil are changed due to the existence of the nonmagnetic coating, an electric signal generated by the magnetic resistance change is fed back to the circuit board, and when the signal is detected on the circuit board, the thickness of the coating can be calculated through the magnetic flux change difference.
The thickness measuring probe provided with the ruby and provided with the magnetic induction and eddy current effect sensor has the following beneficial effects:
(1) The probe and the host are integrated, so that the use is more convenient, and the instrument is easier to store; in addition, the outer diameter of the ruby shares a coaxiality with the inner diameter of a round hole at one end of the protective sleeve, and part of the ruby is exposed outside the protective sleeve, so that abrasion of equipment and surface materials of a measuring object is reduced.
(2) The utility model adopts the electromagnetic induction technology principle, when the magnetic flux in the closed loop changes, the thickness of the coating can be calculated through the magnetic flux change difference, and an effective means is provided for rapidly measuring the thickness of the coating.
(3) The fixing part is arranged, so that the probe can be conveniently fixed, the original installation time is saved, the effect that the probe connector is easy to loosen and fall off is effectively avoided, and the service life of the probe is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a ruby-mounted thickness measuring probe incorporating magnetic induction and eddy current effect sensors in accordance with the present disclosure;
FIG. 2 is a cross-sectional view of a ruby-equipped thickness probe incorporating magnetic induction and eddy current effect sensors in accordance with the present disclosure;
Fig. 3 is an exploded view of a ruby-mounted thickness probe incorporating magnetic induction and eddy current effect sensors as disclosed herein.
In fig. 1-3: 1. a magnetic core; 2. a magnetic shield; 3. an exciting coil; 4. an induction coil; 5. an eddy current coil; 6. ruby; 7. a first coil positioning post; 8. a second coil positioning column; 9. a protective sleeve; 10. a magnetic core base.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific detection methods so that those skilled in the art may better understand the present utility model and practice it, but the examples are not to be construed as limiting the present utility model.
As shown in fig. 1-3, the utility model discloses a thickness measuring probe which contains magnetic induction and eddy current effect sensors and is provided with ruby, wherein the probe assembly is provided with a magnetic core base 10, a protective sleeve 9, a magnetic core 1, a ruby 6, a magnetic shielding cover 2, an exciting coil 3, an induction coil 4, an eddy current coil 5, a first coil positioning column 7 and a second coil positioning column 8;
The magnetic core 1 is made of a magnetic conduction material, the magnetic conduction material comprises iron, ferroalloy, nickel or nickel alloy, and one end of the magnetic core 1 is fixedly bonded with the ruby 6;
the inner diameter of the magnetic core base 10, which is close to one end of the magnetic core 1, shares a coaxiality with the outer diameter of the magnetic core 1, and adopts an adhesive connection mode;
The inner diameter of the exciting coil 3 and the outer diameter of the magnetic core 1 share a coaxiality, and a clearance fit mode is adopted;
the inner diameter of the induction coil 4 and the outer diameter of the magnetic core 1 share a coaxiality, and a clearance fit mode is adopted;
The inner diameter of the eddy current coil 5 and the outer diameter of the magnetic core 1 share the same coaxiality and adopt a clearance fit mode;
The first coil positioning column 7 is positioned between the induction coil 4 and the eddy current coil 5;
The second coil positioning post 8 is positioned between the induction coil 4 and the exciting coil 3;
The magnetic shielding cover 2 is made of magnetic conductive materials and is used for inhibiting interference of a low-frequency magnetic field, the inner diameter of the magnetic shielding cover 2 and the outer diameter of the magnetic core base 10, which is close to one end of the magnetic core 1, share the same coaxiality, and a clearance fit mode is adopted;
The inner diameter of the protective sleeve 9 shares a degree of coaxiality with the outer diameter of the magnetic shield 2, and adopts a clearance fit manner.
Wherein, the protection sleeve 9 is far away from the round hole internal diameter of magnetic core base 10 one end with ruby 6 external diameter sharing axiality, just ruby 6 part exposes protection sleeve 9 outside.
The magnetic core 1 is sequentially sleeved with the excitation coil 3, the second coil positioning column 8, the induction coil 4, the first coil positioning column 7 and the eddy current coil 5 along one end, close to the magnetic core base 10, of the protective sleeve 9.
The coating thickness detection method comprises the following steps:
pressing the detection probe on the coating to be detected;
When the detection probe contacts with the coating, the probe and the magnetic metal matrix form a closed magnetic circuit, the magnetic resistance and the inductance of the probe coil are changed due to the existence of the nonmagnetic coating, an electric signal generated by the magnetic resistance change is fed back to the signal processing module on the circuit board, and when the signal processing module on the circuit board detects the signal, the thickness of the coating can be calculated through the magnetic flux change difference.
It is to be understood that the above detailed description is merely illustrative of or explanatory of the principles of the utility model, and is not restrictive of the utility model, but is capable of use in various other combinations, modifications and environments, and is capable of changes or modifications within the scope of the inventive concept as described herein, through the above teachings or through the use of techniques or knowledge in the relevant art.
Claims (3)
1. The thickness measuring probe comprises a magnetic core base, a protective sleeve, a magnetic core, ruby, a magnetic shielding cover, an exciting coil, an induction coil, an eddy current coil, a first coil positioning column and a second coil positioning column;
The magnetic core is made of a magnetic conduction material, the magnetic conduction material comprises iron, iron alloy, nickel or nickel alloy, and one end of the magnetic core is fixedly bonded with the ruby;
The magnetic core base, the inner diameter of the magnetic core base near one end of the magnetic core shares a coaxiality with the outer diameter of the magnetic core, and adopts an adhesive connection mode;
the inner diameter of the exciting coil and the outer diameter of the magnetic core share a coaxiality, and a clearance fit mode is adopted;
the inner diameter of the induction coil and the outer diameter of the magnetic core share a coaxiality, and a clearance fit mode is adopted;
The inner diameter of the eddy current coil and the outer diameter of the magnetic core share the same coaxiality, and a clearance fit mode is adopted;
A first coil positioning post positioned between the induction coil and the eddy current coil;
a second coil positioning post positioned between the induction coil and the excitation coil;
The magnetic shielding cover is made of magnetic conduction materials and is used for inhibiting interference of a low-frequency magnetic field, the inner diameter of the magnetic shielding cover and the outer diameter of the magnetic core base close to one end of the magnetic core share the same coaxiality, and a clearance fit mode is adopted;
The inner diameter of the protection sleeve shares a coaxiality with the outer diameter of the magnetic shielding cover, and adopts a clearance fit mode.
2. A thickness measuring probe containing magnetic induction and eddy current effect sensors and equipped with ruby according to claim 1, wherein the inner diameter of the circular hole at the end of the protective sleeve away from the magnetic core base shares a coaxiality with the outer diameter of the ruby, and the ruby part is exposed outside the protective sleeve.
3. The thickness measuring probe with ruby and magnetic induction and eddy current effect sensor according to claim 1, wherein the magnetic core is sequentially sleeved with the exciting coil, the second coil positioning column, the induction coil, the first coil positioning column and the eddy current coil along one end of the protective sleeve, which is close to the magnetic core base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321887154.8U CN221173257U (en) | 2023-07-18 | 2023-07-18 | Thickness measuring probe with magnetic induction and eddy current effect sensor and ruby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321887154.8U CN221173257U (en) | 2023-07-18 | 2023-07-18 | Thickness measuring probe with magnetic induction and eddy current effect sensor and ruby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221173257U true CN221173257U (en) | 2024-06-18 |
Family
ID=91463200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321887154.8U Active CN221173257U (en) | 2023-07-18 | 2023-07-18 | Thickness measuring probe with magnetic induction and eddy current effect sensor and ruby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221173257U (en) |
-
2023
- 2023-07-18 CN CN202321887154.8U patent/CN221173257U/en active Active
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