CN114428111A - Pulsed eddy current detection sensor shell - Google Patents
Pulsed eddy current detection sensor shell Download PDFInfo
- Publication number
- CN114428111A CN114428111A CN202111515844.6A CN202111515844A CN114428111A CN 114428111 A CN114428111 A CN 114428111A CN 202111515844 A CN202111515844 A CN 202111515844A CN 114428111 A CN114428111 A CN 114428111A
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- eddy current
- wire
- drain pan
- hole
- shell
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 6
- 241001330002 Bambuseae Species 0.000 abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 6
- 239000011425 bamboo Substances 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 101150006573 PAN1 gene Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/904—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model provides a pulse eddy current testing sensor shell, including drain pan and the cap of lid on the drain pan, be formed with the cylindrical recess that is used for placing the eddy current testing sensor more than 2 on the interior bottom surface of drain pan, open the through-hole that link up from top to bottom in the capping middle part of cap, the fixed wire section of thick bamboo that is provided with on the through-hole, the bottom mouth and the through-hole of a wire section of thick bamboo are linked together for derive the wire of eddy current testing sensor from the drain pan, the fixed plate that is provided with in top of a wire section of thick bamboo, the upper surface of fixed plate is used for the fixed detection car of placing. The invention combines a plurality of sensors, simultaneously collects data of a plurality of groups of sensors, greatly improves the detection efficiency, ensures the consistent distance between the sensors by the arrangement design of the sensors, eliminates the signal interference between the sensors, greatly reduces the omission factor of detection by the arrangement mode of double-row dislocation, can reach 100 percent of effective detection area on a scanning path, and is convenient for detection personnel.
Description
Technical Field
The invention relates to a sensor housing. In particular to a shell of a pulse eddy current detection sensor.
Background
Because the working environment and the liquid level of the normal-pressure storage tank usually change constantly, and most of storage media have the characteristics of inflammability, explosiveness, volatility and corrosiveness, the problems of material aging, corrosion and the like inevitably occur, particularly, the problems of perforation and crack expansion caused by the chemical action and the electrochemical action of the environment, so that the safety of the storage tank is greatly reduced, the incidence rate of storage medium leakage accidents is increased, and further, the economy is damaged and the environment is polluted. At present, detailed inspection standards are established for the inspection of the atmospheric pressure metal storage tank abroad, and at present, three detection modes of conventional detection, on-line detection and tank opening detection are mainly adopted. However, the detection technologies all have the characteristics of relatively slow scanning speed and relatively small single scanning area. The pulse eddy current detection technology can increase the scanning area and the scanning speed by adjusting the size and the detection parameters of the sensor, thereby providing a more convenient and effective detection method for the detection of the bottom plate of the large-sized storage tank. But the influence of factors such as stability and lift-off height of the detection process on the pulse eddy current detection is larger.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pulsed eddy current detection sensor shell capable of improving the detection efficiency of the pulsed eddy current technology in order to overcome the problems in the prior art.
The technical scheme adopted by the invention is as follows: the utility model provides a pulse eddy current testing sensor shell, is including drain pan and lid of lid on the drain pan, be formed with the cylindrical recess that is used for placing the eddy current testing sensor more than 2 on the interior bottom surface of drain pan, open the capping middle part of lid has the through-hole that link up from top to bottom, the fixed wire section of thick bamboo that is provided with on the through-hole, the bottom mouth of wire section of thick bamboo with the through-hole is linked together for derive the wire of eddy current testing sensor from the drain pan, the fixed plate that is provided with in top of wire section of thick bamboo, the upper surface of fixed plate is used for the fixed detection car of placing.
And the upper parts of the rear inner side surface and the side inner side surfaces at two sides of the bottom shell are inwards recessed to form a shell cover groove for being embedded into the shell cover, the front side surface of the bottom shell is provided with an insertion groove which is communicated with the front side and the back side and is used for being inserted into the shell cover, and the shell cover is inserted into the bottom shell from the insertion groove, so that the periphery of the shell cover is embedded into the shell cover groove.
The height of cap groove be 3mm, the concave depth be 1mm, the top edge 5mm of top side distance drain pan, the height of insertion groove is 3mm, the top edge 5mm of top side distance drain pan.
The middle part of the front side edge of the shell cover is integrally formed with a downward bent handle which is convenient for pushing and pulling the shell cover by hands, and the front end surface of the shell cover is correspondingly formed with an embedded groove for embedding the handle.
Two rows of cylindrical grooves are formed on the inner bottom surface of the bottom shell, the diameter of each cylindrical groove is 44mm, the depth of each cylindrical groove is 13mm, and the distance between every two adjacent cylindrical grooves is 32 mm.
And the wall of the wire guide cylinder is provided with a wire passing hole, and the wire passing hole is used for connecting a wire of the eddy current detection sensor extending out of the wire guide cylinder with external equipment.
The shell of the pulse eddy current detection sensor has the advantages that a plurality of sensors are combined, data of a plurality of groups of sensors are acquired simultaneously, detection efficiency is greatly improved, the arrangement design of the sensors ensures consistent intervals among the sensors, signal interference among the sensors is eliminated, the arrangement mode of double rows of dislocation is adopted, the detection omission rate is greatly reduced, the effective detection area of 100% on a scanning path can be achieved, and in addition, the detection work of detection personnel is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a pulsed eddy current test sensor housing of the present invention;
FIG. 2 is a schematic structural view of the bottom case of the present invention;
fig. 3 is a schematic view of the structure of the cover and the wire barrel of the present invention.
In the drawings
1: bottom shell 1.1: cylindrical recess
1.2: posterior medial surface 1.3: lateral medial surface
1.4: front side 1.5: shell cover groove
1.6: insertion groove 1.7: embedded groove
2: 2.1 of the shell cover: through hole
2.2: the flip cover portion 3: wire guide cylinder
3.1: the wire passing hole 4: fixing plate
Detailed Description
The following describes a pulsed eddy current test sensor housing according to the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a pulsed eddy current test sensor housing according to the present invention includes a bottom case 1 and a housing cover 2 covering the bottom case 1.
In the embodiment of the invention, the length of the bottom shell 1 is 280mm, the width is 150mm, the height is 33mm, the inner depth of the bottom shell 1 is 18mm, and the wall thickness of four side edges is 7 mm. The cover 2 has a length of 264mm, a width of 147mm and a thickness of 2 mm.
More than 2 cylindrical grooves 1.1 used for placing eddy current detection sensors are formed in the inner bottom surface of the bottom shell 1, two rows of the cylindrical grooves 1.1 are formed in the inner bottom surface of the bottom shell 1, the diameter of each cylindrical groove 1.1 is 44mm, the depth of each cylindrical groove 1.1 is 13mm, and the distance between every two adjacent cylindrical grooves 1.1 is 32 mm. The middle of the cover surface of the shell cover 2 is provided with a through hole 2.1 which is vertically communicated, the through hole 2.1 is fixedly provided with a wire guide cylinder 3, the bottom port of the wire guide cylinder 3 is communicated with the through hole 2.1 and used for leading out a wire of the eddy current detection sensor from the shell cover 1, the top end of the wire guide cylinder 3 is fixedly provided with a fixing plate 4, and the upper surface of the fixing plate 4 is used for fixedly placing a detection vehicle.
The wall of the wire guide cylinder 3 is provided with a wire through hole 3.1, and the wire through hole 3.1 is used for connecting a wire of the eddy current detection sensor extending out of the wire guide cylinder 3 with an external device.
As shown in fig. 2, a cover groove 1.5 for inserting the cover 2 is formed in the upper portion of the rear inner side surface 1.2 and the side inner side surfaces 1.3 at both sides of the bottom cover 1, and an insertion groove 1..6 for inserting the cover 2 is formed in the front side surface 1.4 of the bottom cover 1, which is at the same height as the cover groove 1.5, and is connected in the front-rear direction, and the cover 2 is inserted into the bottom cover 1 from the insertion groove 1.6, so that the periphery of the cover 2 is inserted into the cover groove 1.5.
The height of cap groove 1.5 be 3mm, the concave depth be 1mm, the top is 5mm apart from the upper edge of drain pan 1, the height of insertion groove 1.6 is 3mm, the top is 5mm apart from the upper edge of drain pan 1.
As shown in fig. 1, 2 and 3, a downward bent handle 2.2 facilitating pushing and pulling the case cover 2 by hand is integrally formed at the middle part of the front side edge of the case cover 2, and an insertion groove 1.7 for inserting the handle 2.2 is correspondingly formed on the front end surface of the case base 1.
In the embodiment of the invention, the bottom shell 1, the shell cover 2 and the fixing plate 4 are all made of plastic materials.
The above-mentioned embodiments only express the implementation manner of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the patent scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides a pulse eddy current testing sensor shell, is in including drain pan (1) and lid (2) on drain pan (1), its characterized in that, be formed with more than 2 cylindrical recess (1.1) that are used for placing the eddy current testing sensor on the interior bottom surface of drain pan (1), open the capping middle part of lid (2) has through-hole (2.1) that link up from top to bottom, fixed wire barrel (3) that is provided with on through-hole (2.1), the bottom mouth of wire barrel (3) with through-hole (2.1) are linked together for derive the wire of eddy current testing sensor from drain pan (1), the top of wire barrel (3) is fixed and is provided with fixed plate (4), the upper surface of fixed plate (4) is used for the fixed detection car that places.
2. A pulsed eddy current test sensor housing according to claim 1, characterized in that the upper part of the rear inner side surface (1.2) and the side inner side surfaces (1.3) of the two sides of the bottom case (1) is recessed inward to form a case cover groove (1.5) for inserting the case cover (2), the front side surface (1.4) of the bottom case (1) is formed with an insertion groove (1.6) which is communicated with the front and the back and is used for inserting the case cover (2) and has the same height with the case cover groove (1.5), and the case cover (2) is inserted into the bottom case (1) from the insertion groove (1.6), so that the periphery of the case cover (2) is inserted into the case cover groove (1.5).
3. A pulsed eddy current test sensor housing according to claim 2, characterized in that the height of the housing cover groove (1.5) is 3mm, the depth of the recess is 1mm, the upper side is 5mm from the upper edge of the bottom housing (1), the height of the insertion groove (1.6) is 3mm, and the upper side is 5mm from the upper edge of the bottom housing (1).
4. The pulsed eddy current detection sensor shell according to claim 1, characterized in that a downward bent handle (2.2) for conveniently pushing and pulling the shell cover (2) by hand is integrally formed at the middle part of the front side edge of the shell cover (2), and an embedding groove (1.7) for embedding the handle (2.2) is correspondingly formed at the front end surface of the shell (1).
5. A pulsed eddy current test sensor housing according to claim 1, characterized in that the cylindrical recesses (1.1) are formed in two rows on the inner bottom surface of the bottom case (1), the diameter of the cylindrical recess (1.1) is 44mm, the depth is 13mm, and the distance between every adjacent three cylindrical recesses (1.1) is 32 mm.
6. The pulsed eddy current test sensor shell according to claim 1, wherein a wire through hole (3.1) is formed in the wall of the wire guide cylinder (3), and the wire through hole (3.1) is used for connecting a wire of the eddy current test sensor extending out of the wire guide cylinder (3) with an external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515844.6A CN114428111A (en) | 2021-12-13 | 2021-12-13 | Pulsed eddy current detection sensor shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515844.6A CN114428111A (en) | 2021-12-13 | 2021-12-13 | Pulsed eddy current detection sensor shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114428111A true CN114428111A (en) | 2022-05-03 |
Family
ID=81312118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111515844.6A Pending CN114428111A (en) | 2021-12-13 | 2021-12-13 | Pulsed eddy current detection sensor shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114428111A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730144A (en) * | 2015-02-10 | 2015-06-24 | 中国人民解放军海军航空工程学院青岛校区 | Eddy-current transducer for detecting internal corrosion of multilayer structure and manufacture method of eddy-current transducer |
| CN206192264U (en) * | 2016-10-31 | 2017-05-24 | 天津因科新创科技有限公司 | Pulsed eddy current wall thickness is swept to look into and is installed casing with sensor |
| US20170160237A1 (en) * | 2015-12-08 | 2017-06-08 | Benjamin Avery Freer | Eddy current corrosion sensor |
| WO2019054747A2 (en) * | 2017-09-14 | 2019-03-21 | 주식회사 아모센스 | Wireless power transmission device |
| CN209878652U (en) * | 2019-04-12 | 2019-12-31 | 嘉兴鸿明传感科技有限公司 | Electrochemical gas sensor suitable for severe working condition environment |
| CN112268950A (en) * | 2020-08-31 | 2021-01-26 | 北京工业大学 | Double-layer magnetic shielding type rectangular eddy current sensor |
| CN212459818U (en) * | 2020-05-29 | 2021-02-02 | 宜昌市瑞磁科技有限公司 | Multichannel leakage current sensor |
-
2021
- 2021-12-13 CN CN202111515844.6A patent/CN114428111A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730144A (en) * | 2015-02-10 | 2015-06-24 | 中国人民解放军海军航空工程学院青岛校区 | Eddy-current transducer for detecting internal corrosion of multilayer structure and manufacture method of eddy-current transducer |
| US20170160237A1 (en) * | 2015-12-08 | 2017-06-08 | Benjamin Avery Freer | Eddy current corrosion sensor |
| CN206192264U (en) * | 2016-10-31 | 2017-05-24 | 天津因科新创科技有限公司 | Pulsed eddy current wall thickness is swept to look into and is installed casing with sensor |
| WO2019054747A2 (en) * | 2017-09-14 | 2019-03-21 | 주식회사 아모센스 | Wireless power transmission device |
| CN209878652U (en) * | 2019-04-12 | 2019-12-31 | 嘉兴鸿明传感科技有限公司 | Electrochemical gas sensor suitable for severe working condition environment |
| CN212459818U (en) * | 2020-05-29 | 2021-02-02 | 宜昌市瑞磁科技有限公司 | Multichannel leakage current sensor |
| CN112268950A (en) * | 2020-08-31 | 2021-01-26 | 北京工业大学 | Double-layer magnetic shielding type rectangular eddy current sensor |
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