CN111929340A - Composite insulating material NMR formula nondestructive test device convenient to use - Google Patents
Composite insulating material NMR formula nondestructive test device convenient to use Download PDFInfo
- Publication number
- CN111929340A CN111929340A CN202010579573.XA CN202010579573A CN111929340A CN 111929340 A CN111929340 A CN 111929340A CN 202010579573 A CN202010579573 A CN 202010579573A CN 111929340 A CN111929340 A CN 111929340A
- Authority
- CN
- China
- Prior art keywords
- frame
- sliding
- clamping
- composite insulating
- rotary joint
- Prior art date
- 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.)
- Pending
Links
- 239000011810 insulating material Substances 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 title claims description 4
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 241000237983 Trochidae Species 0.000 claims abstract description 17
- 238000009659 non-destructive testing Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000005253 cladding Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 239000012212 insulator Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 6
- 238000000685 Carr-Purcell-Meiboom-Gill pulse sequence Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003331 infrared imaging Methods 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
- 229910001172 neodymium magnet Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
- G01N24/085—Analysis of materials for the purpose of controlling industrial production systems
Abstract
The invention discloses a conveniently-used composite insulating material NMR type nondestructive testing device which comprises a sliding frame, a permanent magnet, a top shell, a bottom shell and a coil, wherein a wire passing sleeve is fixedly arranged at the bottom end of the sliding frame, a lower lead is arranged on the upper portion of the left side of the wire passing sleeve in a penetrating mode, an upper lead is arranged on the upper portion of the right side of the wire passing sleeve in a penetrating mode, and the top end of a power connection head is electrically welded with the lower lead and the upper lead. The aging detection device is reasonable in structural design, and the aging of the insulator is detected by matching with a portable detector, so that the aging detection device is not easily interfered by the external environment and is more accurate in detection; when in use, the device is convenient to adjust, has strong adaptability and good stability after adjustment, and ensures the detection effect; the device has flexible structure, convenient and fast structure disassembly and assembly and convenient carrying.
Description
Technical Field
The invention relates to the technical field of nondestructive testing, in particular to a conveniently-used NMR (nuclear magnetic resonance) type nondestructive testing device for a composite insulating material.
Background
The application of the high-field nuclear magnetic resonance spectrometer in the field detection of actual samples is limited due to the defects of large volume, heavy weight, poor mobility and the like of the high-field nuclear magnetic resonance spectrometer; the infrared imaging method and the ultraviolet imaging method have a detection blind area and are easily interfered by an external radiation source when the surface discharge is weak and the temperature change is not obvious, and the portable low-field nuclear magnetic resonance sensor makes up the defects of a high-field nuclear magnetic resonance spectrometer by the advantages of portability, openness and the like, so that the portable low-field nuclear magnetic resonance sensor is widely concerned by students.
The existing detection device is sensitive to the interference of the external environment, such as an infrared imaging method, and is easily interfered by an external radiation source, a hydrophobic detection method is easily interfered by the external wind speed and the wind direction, and the detection precision of a visual detection method is not guaranteed; when in use, the adaptability is poor, the adjustment is inconvenient, the stability after the adjustment is insufficient, and the detection result is influenced; the device has large volume, and the structure is mostly integral, so the carrying is inconvenient.
Disclosure of Invention
In view of the above, the present invention provides a composite insulating material NMR type nondestructive testing apparatus which is convenient to use. The problems existing in the prior art can be solved.
The purpose of the invention is realized by the following technical scheme:
the conveniently-used composite insulating material NMR type nondestructive testing device comprises a sliding frame, a permanent magnet, a top shell, a bottom shell and a coil, wherein a wire passing sleeve is fixedly installed at the bottom end of the sliding frame, a lower lead is installed on one side of the wire passing sleeve in a penetrating manner, an upper lead is installed on the other side of the wire passing sleeve in a penetrating manner, and an electric connector is arranged at the lower part of the wire passing sleeve and is respectively and electrically connected with the lower lead (19) and the upper lead;
a sliding block is slidably mounted on the inner side of the middle part of the sliding frame, a lower detection frame is fixedly mounted at the left end of the sliding block, and a limiting structure for limiting the sliding block to slide back and forth on the sliding frame is arranged on the sliding block; the lower detection frame comprises a lower cladding, a bottom shell is fixedly mounted at the left part of the inner side of the lower cladding, a lower metal plate is fixedly mounted at the bottom end of the bottom shell, a permanent magnet is arranged between the inner side of the bottom shell and the top end of the lower metal plate, a lower frame is fixedly mounted at the top end of the permanent magnet at the inner side of the bottom shell, and a coil is fixedly mounted at the inner side of the lower frame;
the sliding frame top end sleeve is provided with a clamping sleeve, a detection frame is fixedly mounted on the left side of the clamping sleeve and comprises an upper cladding, a top shell is fixedly mounted at the left part of the bottom end of the upper cladding, an upper metal plate is fixedly mounted at the top end of the top shell, a permanent magnet is arranged between the inner side of the top shell and the bottom end of the upper metal plate, an upper frame is fixedly mounted at the bottom end of the permanent magnet at the inner side of the top shell, and a coil is fixedly mounted at the inner side of the upper frame.
Particularly, limit structure includes threaded rod and depression bar, the threaded rod runs through and installs in the middle part of slider, threaded rod front end fixed mounting has the depression bar, depression bar front end fixed mounting has even board, even board front side edge fixed mounting has the spinning piece that the symmetry set up, smooth front side middle part seted up with depression bar complex preceding sliding opening, the back sliding opening has been seted up at balladeur train rear side middle part, and back sliding opening middle part slidable mounting has the pressure cover, and pressure cover front side edge fixed mounting has the spacing ring, the inner wall that balladeur train (1) are located back sliding opening (40) department is provided with the spout with spacing ring complex, the dop that the symmetry set up is installed to pressure cover rear side outer wall fixed mounting, the draw-in groove with dop complex has been seted up to the ballade.
Particularly, a lower support plate is fixedly arranged in the middle of the bottom end of the lower cladding, a lower rotary joint seat is embedded in the lower support plate, a lower rotary joint is fixedly arranged at the top end of the lower lead, the lower rotary joint seat is electrically connected with the lower rotary joint, and the coil is electrically connected with the lower rotary joint seat;
particularly, an upper support plate is fixedly installed in the middle of the top end of the upper cladding, an upper screwing seat is installed in the upper support plate in an embedded mode, an upper screwing joint is fixedly installed at the top end of the upper lead, the upper screwing seat is electrically connected with the upper screwing joint, and the coil is electrically connected with the upper screwing seat;
particularly, a side plate is fixedly arranged at the right end of the sliding block;
particularly, a lower clamping frame is fixedly arranged on the right side of the side plate, and the upper lead is clamped and arranged in the middle of the lower clamping frame;
particularly, the inner sides of the lower frame and the upper frame are provided with filling glue matched with coils, the number of the coils is two, and the coils adopt an 8-shaped planar coil structure;
particularly, an upper clamping frame matched with an upper lead is fixedly installed on the outer wall of the clamping sleeve, a clamping pin is fixedly installed on the inner side of the clamping sleeve, a clamping opening matched with the clamping pin is formed in the middle of the top end of the sliding frame, and a wear-resistant sheet matched with the clamping pin is fixedly installed on the side wall, located at the clamping opening, of the sliding frame;
particularly, the number of the permanent magnets is two, and the permanent magnets, the upper metal plate and the lower metal plate adopt a cylindrical structure.
In particular, the external accessory is electrically coupled to the electrical connector by means of a cable.
The invention has the beneficial effects that:
the aging detection device is reasonable in structural design, and the aging of the insulator is detected by matching with a portable detector, so that the aging detection device is not easily interfered by the external environment and is more accurate in detection; when in use, the device is convenient to adjust, has strong adaptability and good stability after adjustment, and ensures the detection effect; the device has flexible structure, convenient and fast structure disassembly and assembly and convenient carrying.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a schematic top view of the bottom housing, the bottom frame, the carriage, the threaded rod, the rotary head and the pressing sleeve of the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the top case, the upper frame, the sliding frame, the clamping pin, the coil and the clamping sleeve in the embodiment of the invention;
FIG. 4 is a schematic structural diagram of the bottom case, the sliding frame, the handle, the rotary head and the wire-passing sleeve according to the embodiment of the present invention;
FIG. 5 is a schematic bottom view of the top housing, top frame and coil assembly of the present invention;
figure 6 is a schematic top view of the ferrule, bayonet, carriage and wear plate of an embodiment of the present invention.
Fig. 7 is a rear view schematically showing the positions between the carriage, the slot, the rotary head and the pressing sleeve in the embodiment of the present invention.
The reference numerals in the figures denote the following: the sliding frame comprises a sliding frame 1, a connecting plate 2, a lower clamping frame 3, a front sliding opening 4, an upper lead 5, a clamping sleeve 6, an upper clamping frame 7, an upper support plate 8, an upper cladding 9, a permanent magnet 10, an upper frame 11, an upper metal plate 12, a top shell 13, a rotary sheet 14, a lower cladding 15, a bottom shell 16, a lower metal plate 17, a lower support plate 18, a lower lead 19, a wire passing sleeve 20, a handle 21, an electric connector 22, a coil 23, filling glue 24, a clamping pin 25, a wear-resisting sheet 26, an upper rotary connector 27, an upper rotary connector 28, a lower rotary connector 29, a lower rotary connector 30, a side plate 31, a sliding block 32, a lower frame 33, a clamping head 34, a pressing sleeve 35, a limiting ring 36, a pressing rod 37, a threaded rod 38, a clamping groove 39.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the conveniently-used NMR nondestructive testing apparatus for composite insulating materials of the present embodiment includes a carriage 1, a permanent magnet 10, a top shell 13, a bottom shell 16, a handle 21, and a coil 23, wherein a wire passing sleeve 20 is fixedly installed at a bottom end of the carriage 1, a lower lead 19 is installed at an upper portion of a left side of the wire passing sleeve 20 in a penetrating manner, an upper lead 5 is installed at an upper portion of a right side of the wire passing sleeve 20 in a penetrating manner, the handle 21 is fixedly installed at a bottom end of the wire passing sleeve 20, an electrical connector 22 is fixedly installed at a bottom end of the handle 21, and a top end of the electrical connector 22 is;
a slide block 32 is arranged at the inner side of the middle part of the sliding frame 1 in a sliding way, a lower detection frame is fixedly arranged at the left end of the slide block 32, a side plate 31 is fixedly arranged at the right end of the slide block 32, a threaded rod 38 is arranged in the middle of the slide block 32 in a penetrating manner, a pressure rod 37 is fixedly arranged at the front end of the threaded rod 38, a connecting plate 2 is fixedly arranged at the front end of the pressure rod 37, symmetrically arranged rotary vanes 14 are fixedly arranged at the front side edge of the connecting plate 2, a front sliding opening 4 matched with the pressure rod 37 is arranged in the middle of the front side of the sliding frame 1, a rear sliding opening 40 is arranged in the middle of the rear side of the sliding frame 1, a pressure sleeve 35, a limit ring 36 is fixedly arranged at the front side edge of the pressing sleeve 35, a sliding groove matched with the limit ring 36 is arranged on the inner wall of the sliding frame 1 at the rear sliding opening 40, the outer wall of the rear side of the pressing sleeve 35 is fixedly provided with symmetrically arranged clamping heads 34, and the rear side wall of the sliding frame 1 is provided with clamping grooves 39 matched with the clamping heads 34;
1 top end cover of balladeur train is established and is installed cutting ferrule 6, 6 outer walls fixed mounting of cutting ferrule have with last 5 complex card framves 7, 6 inboard fixed mounting of cutting ferrule have bayonet lock 25, 1 top middle part of balladeur train seted up with bayonet lock 25 complex bayonet lock, the lateral wall fixed mounting that balladeur train 1 is located bayonet lock department has with bayonet lock 25 complex wear pad 26, 6 left side fixed mounting of cutting ferrule has last detection frame.
The lower detection frame mainly comprises a lower cladding 15, a bottom shell 16 is fixedly mounted on the left portion of the inner side of the lower cladding 15, a lower metal plate 17 is fixedly mounted at the bottom end of the bottom shell 16, a permanent magnet 10 is fixedly mounted between the inner side of the bottom shell 16 and the top end of the lower metal plate 17, a lower frame 33 is fixedly mounted on the top end of the permanent magnet 10 on the inner side of each of the two bottom shells 16, a coil 23 is fixedly mounted on the inner side of the lower frame 33, a lower support plate 18 is fixedly mounted in the middle of the bottom end of the lower cladding 15, a lower rotary joint 29 is embedded and mounted in the lower support plate 18, a lower rotary joint 30 is fixedly mounted at the top end of a lower lead 19, the.
Go up the detection frame and mainly include last cladding 9, go up cladding 9 bottom left part fixed mounting has top shell 13, top shell 13 top fixed mounting has last metal sheet 12, top shell 13 inboard is located last metal sheet 12 bottom fixed mounting and has permanent magnet 10, top shell 13 inboard is located permanent magnet 10 bottom fixed mounting and has last frame 11, the inboard fixed mounting of last frame 11 has coil 23, go up cladding 9 top middle part fixed mounting has last extension board 8, it installs top spin connection seat 28 to go up the inside setting of upper support board 8, 5 top fixed mounting of last wire has top spin connector 27, top spin connection seat 28 and top spin connector 27 electric connection, coil 23 and top spin connection seat 28 electric connection.
The lower clamping frame 3 is fixedly arranged on the right side of the side plate 31, and the upper lead 5 is clamped and arranged in the middle of the lower clamping frame 3.
And filling glue 24 matched with the coils 23 is arranged on the inner sides of the lower frame 33 and the upper frame 11, the number of the coils 23 is two, and the coils 23 adopt an 8-shaped planar coil structure.
In this embodiment, the number of the permanent magnets 10 is two, and the permanent magnets 10, the upper metal plate 12, and the lower metal plate 17 are cylindrical structures. In use, the electrical connector 22 is connected to the Kea 2 spectrometer by a 50 Ω coaxial cable.
The working principle of the invention is as follows:
the invention relates to a conveniently-used NMR (nuclear magnetic resonance) type nondestructive testing device for a composite insulating material, wherein a stable and constant uniform static magnetic field is an ideal condition for nuclear magnetic resonance, and considering the design of openness and portability, a neodymium iron boron (NdFeB) permanent magnet with strong magnetism is selected to construct a static magnetic field B0, and considering that a magnetic field generated by a cylindrical magnet has axial symmetry characteristics, the magnetic field distribution on the meridian plane of the cylindrical symmetry axis is the same, and permanent magnet pieces adopt a cylindrical structure. In order to obtain a radio frequency magnetic field perpendicular to a static magnetic field B0 in a target area and reduce the interference of far-field noise on the radio frequency magnetic field, an 8-shaped planar coil structure is adopted for a radio frequency coil, and compared with a traditional single spiral coil, the anti-interference effect is improved by 1.6 times;
firstly, the screw rod 38 is rotated by the rotary piece 14 to lead the pressure rod 37 to be far away from the slide block 32, the pressing sleeve 35 can slide backwards to lead the clamping head 34 to be separated from the clamping groove 39, so that the slide block 32 can slide up and down, the threaded rod 38 is reversed after sliding, the slide block 32 is fixed, the adjustment is convenient, the clamping head 34 is clamped on the sliding frame 1, the clamping head type nuclear magnetic resonance sensor can not slide even being collided by external force when in use, the stability is good, the adjusted clamp type nuclear magnetic resonance sensor is clamped on a silicon rubber insulator umbrella skirt sheath, a radio frequency coil probe is connected to an Kea 2 spectrometer through a coaxial cable of 50 omega, the spectrometer is connected to a computer through a USB connecting wire, each group of samples are measured for 3 times under the same CPMG pulse sequence parameters to obtain relaxation data, the peak value of the original CPMG echo signal is extracted, the obtained CPMG echo string data is subjected to the fitting result obtained by performing, since the dielectric constant of the insulating material reflects the insulating performance of the material, the aging degree of the insulator umbrella skirt can be reflected by the change of the relative dielectric constant of the insulator umbrella skirt.
The portable impedance analyzer is matched with the device to measure the relative dielectric constant of the umbrella skirt material of the silicon rubber insulator, the device adopts a parallel polar plate technology, the material to be measured is clamped between two electrodes to form a capacitor, the dielectric constant and the loss factor of the material are calculated by testing the capacitance characteristic, the relative dielectric constant is reduced in proportion along with the increase of the operation time for comparing the relative dielectric constant and the transverse relaxation time of the composite insulator in different operation periods, the change of the transverse relaxation time has a good corresponding relation with the relative dielectric constant, and the comparison result shows that the transverse relaxation time is more sensitive to the aging of the insulator;
the invention is very convenient to store, after the device is used, only the lower rotary connection seat 29 and the lower rotary joint 30 need to be separated, the upper rotary connection seat 28 and the upper rotary joint 27 need to be separated, the cutting sleeve 6 is pulled upwards, the sliding sleeve 6 with the upper detection frame can be separated from the sliding frame 1, and only the threaded rod 38 is separated from the pressing sleeve 35, the threaded rod 38, the sliding block 32 and the lower detection frame can be separated from the sliding frame 1, so that the device is convenient and quick to disassemble integrally, is placed in a split manner and is convenient to carry;
the detection device is matched with a portable detector to detect the aging of the insulator, so that the detection device is not easily interfered by the external environment and is more accurate in detection; when in use, the device is convenient to adjust, has strong adaptability and good stability after adjustment, and ensures the detection effect; the device has flexible structure, convenient and fast structure disassembly and assembly and convenient carrying.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a compound insulating material NMR formula nondestructive test device convenient to use which characterized in that: the wire passing device comprises a sliding frame (1), a permanent magnet (10), a top shell (13), a bottom shell (16) and a coil (23), wherein a wire passing sleeve (20) is fixedly installed at the bottom end of the sliding frame (1), a lower lead (19) penetrates through one side of the wire passing sleeve (20), an upper lead (5) penetrates through the other side of the wire passing sleeve (20), an electric connector (22) is arranged at the lower part of the wire passing sleeve (20), and the electric connector (22) is electrically connected with the lower lead (19) and the upper lead (5) respectively;
a sliding block (32) is slidably mounted on the inner side of the middle of the sliding frame (1), a lower detection frame is fixedly mounted at the left end of the sliding block (32), and a limiting structure for limiting the sliding block to slide back and forth on the sliding frame (1) is arranged on the sliding block; the lower detection frame comprises a lower cladding (15), a bottom shell (16) is fixedly mounted at the left part of the inner side of the lower cladding (15), a lower metal plate (17) is fixedly mounted at the bottom end of the bottom shell (16), a permanent magnet (10) is arranged between the inner side of the bottom shell (16) and the top end of the lower metal plate (17), a lower frame (33) is fixedly mounted at the top end of the permanent magnet (10) at the inner side of the bottom shell (16), and a coil (23) is fixedly mounted at the inner side of the lower frame (33);
sliding frame (1) top cover is established and is installed cutting ferrule (6), cutting ferrule (6) left side fixed mounting has last detection frame, it includes involucrum (9) to go up detection frame, go up involucrum (9) bottom left part fixed mounting have top shell (13), top shell (13) top fixed mounting has last metal sheet (12), be provided with permanent magnet (10) between top shell (13) inboard and last metal sheet (12) bottom, top shell (13) inboard is located permanent magnet (10) bottom fixed mounting has upper ledge (11), and upper ledge (11) inboard fixed mounting has coil (23).
2. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the limiting structure comprises a threaded rod (38) and a pressing rod (37), the threaded rod (38) is installed in the middle of a sliding block (32) in a penetrating mode, the pressing rod (37) is fixedly installed at the front end of the threaded rod (38), a connecting plate (2) is fixedly installed at the front end of the pressing rod (37), rotating pieces (14) symmetrically arranged are fixedly installed at the front side edge of the connecting plate (2), a front sliding opening (4) matched with the pressing rod (37) is formed in the middle of the front side of the sliding frame (1), a rear sliding opening (40) is formed in the middle of the rear side of the sliding frame (1), a pressing sleeve (35) is slidably installed in the middle of the rear sliding opening (40), a limiting ring (36) is fixedly installed at the front side edge of the pressing sleeve (35), a sliding chute matched with the limiting ring (36) is formed in the inner wall, located at the rear sliding opening (40), clamping heads (34) symmetrically arranged on, and a clamping groove (39) matched with the clamping head (34) is formed in the rear side wall of the sliding frame (1).
3. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the middle of the bottom end of the lower cladding (15) is fixedly provided with a lower support plate (18), a lower rotary joint seat (29) is embedded in the lower support plate (18), the top end of the lower lead (19) is fixedly provided with a lower rotary joint (30), the lower rotary joint seat (29) is electrically connected with the lower rotary joint (30), and the coil (23) is electrically connected with the lower rotary joint seat (29).
4. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: an upper support plate (8) is fixedly installed in the middle of the top end of the upper cladding (9), an upper rotary joint seat (28) is installed in the upper support plate (8) in an embedded mode, an upper rotary joint (27) is fixedly installed at the top end of the upper lead (5), the upper rotary joint seat (28) is electrically connected with the upper rotary joint (27), and the coil (23) is electrically connected with the upper rotary joint seat (28).
5. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: and a side plate (31) is fixedly arranged at the right end of the sliding block (32).
6. A composite insulating material NMR nondestructive testing apparatus convenient to use according to claim 5, wherein: curb plate (31) right side fixed mounting has lower calorie of frame (3), go up wire (5) joint and install in lower calorie of frame (3) middle part.
7. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the inner sides of the lower frame (33) and the upper frame (11) are provided with filling glue (24) matched with the coils (23), the number of the coils (23) is two, and the coils (23) adopt an 8-shaped planar coil structure.
8. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the outer wall of the clamping sleeve (6) is fixedly provided with an upper clamping frame (7) matched with the upper lead (5), the inner side of the clamping sleeve (6) is fixedly provided with a clamping pin (25), the middle of the top end of the sliding frame (1) is provided with a clamping opening matched with the clamping pin (25), and the side wall of the sliding frame (1) at the clamping opening is fixedly provided with a wear-resistant sheet (26) matched with the clamping pin (25).
9. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the number of the permanent magnets (10) is two, and the permanent magnets (10), the upper metal plate (12) and the lower metal plate (17) adopt cylindrical structures.
10. The easy-to-use NMR nondestructive testing apparatus for composite insulating materials according to claim 1, wherein: the external auxiliary equipment is electrically connected with the electric connector (22) through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579573.XA CN111929340A (en) | 2020-06-23 | 2020-06-23 | Composite insulating material NMR formula nondestructive test device convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579573.XA CN111929340A (en) | 2020-06-23 | 2020-06-23 | Composite insulating material NMR formula nondestructive test device convenient to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111929340A true CN111929340A (en) | 2020-11-13 |
Family
ID=73316650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579573.XA Pending CN111929340A (en) | 2020-06-23 | 2020-06-23 | Composite insulating material NMR formula nondestructive test device convenient to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111929340A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120081119A1 (en) * | 2007-11-10 | 2012-04-05 | Murphree Jr Dennis Haaga | Transmission line probe for nmr |
| CN102735706A (en) * | 2012-07-18 | 2012-10-17 | 重庆大学 | Nuclear magnetic resonance sensor used for nondestructive aging resonance of umbrella skirt of composite insulator |
| US20140084927A1 (en) * | 2012-09-21 | 2014-03-27 | Vista Clara Inc. | Surface-based nmr measurement |
| CN104297281A (en) * | 2014-10-24 | 2015-01-21 | 广东电网有限责任公司东莞供电局 | Circular-arc unilateral nuclear magnetic resonance sensor |
| CN106841264A (en) * | 2016-12-20 | 2017-06-13 | 国网重庆市电力公司电力科学研究院 | A kind of nmr sensor for detecting composite insulator umbrella skirt |
| CN107402225A (en) * | 2017-07-07 | 2017-11-28 | 云南电网有限责任公司大理供电局 | Radio-frequency electromagnetic relaxation behavior measuring system |
| CN206710345U (en) * | 2017-04-26 | 2017-12-05 | 云南电网有限责任公司大理供电局 | A kind of composite insulator ageing management system |
| WO2018072698A1 (en) * | 2016-10-17 | 2018-04-26 | 国网重庆市电力公司电力科学研究院 | Nuclear magnetic resonance measurement system for detecting degree of aging of composite insulator umbrella skirt |
| CN207707546U (en) * | 2017-11-22 | 2018-08-10 | 秦语璐 | Desk capable for rising and falling |
| CN109044594A (en) * | 2018-07-06 | 2018-12-21 | 周逸健 | A kind of dedicated fixed frame for medical paediatrics |
| CN109703191A (en) * | 2018-12-03 | 2019-05-03 | 赣州润达服装有限公司 | A kind of quick positioning printing device of knitting |
| CN110133033A (en) * | 2019-03-26 | 2019-08-16 | 贵州电网有限责任公司 | The comprehensive efficient on-line measuring device of composite insulator umbrella skirt |
| CN110412065A (en) * | 2019-06-19 | 2019-11-05 | 广西电网有限责任公司电力科学研究院 | A kind of nmr sensor for composite insulator ageing management |
| CN209656296U (en) * | 2019-05-13 | 2019-11-19 | 苏州倍嘉力机械科技有限公司 | A kind of durable detection device of automobile control arm assembly |
| CN209878633U (en) * | 2019-03-26 | 2019-12-31 | 贵州电网有限责任公司 | Vertical detection device of composite insulator full skirt |
-
2020
- 2020-06-23 CN CN202010579573.XA patent/CN111929340A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120081119A1 (en) * | 2007-11-10 | 2012-04-05 | Murphree Jr Dennis Haaga | Transmission line probe for nmr |
| CN102735706A (en) * | 2012-07-18 | 2012-10-17 | 重庆大学 | Nuclear magnetic resonance sensor used for nondestructive aging resonance of umbrella skirt of composite insulator |
| US20140084927A1 (en) * | 2012-09-21 | 2014-03-27 | Vista Clara Inc. | Surface-based nmr measurement |
| CN104297281A (en) * | 2014-10-24 | 2015-01-21 | 广东电网有限责任公司东莞供电局 | Circular-arc unilateral nuclear magnetic resonance sensor |
| WO2016061876A1 (en) * | 2014-10-24 | 2016-04-28 | 广东电网有限责任公司东莞供电局 | Circular-arc one-side nuclear magnetic resonance sensor |
| WO2018072698A1 (en) * | 2016-10-17 | 2018-04-26 | 国网重庆市电力公司电力科学研究院 | Nuclear magnetic resonance measurement system for detecting degree of aging of composite insulator umbrella skirt |
| CN106841264A (en) * | 2016-12-20 | 2017-06-13 | 国网重庆市电力公司电力科学研究院 | A kind of nmr sensor for detecting composite insulator umbrella skirt |
| CN206710345U (en) * | 2017-04-26 | 2017-12-05 | 云南电网有限责任公司大理供电局 | A kind of composite insulator ageing management system |
| CN107402225A (en) * | 2017-07-07 | 2017-11-28 | 云南电网有限责任公司大理供电局 | Radio-frequency electromagnetic relaxation behavior measuring system |
| CN207707546U (en) * | 2017-11-22 | 2018-08-10 | 秦语璐 | Desk capable for rising and falling |
| CN109044594A (en) * | 2018-07-06 | 2018-12-21 | 周逸健 | A kind of dedicated fixed frame for medical paediatrics |
| CN109703191A (en) * | 2018-12-03 | 2019-05-03 | 赣州润达服装有限公司 | A kind of quick positioning printing device of knitting |
| CN110133033A (en) * | 2019-03-26 | 2019-08-16 | 贵州电网有限责任公司 | The comprehensive efficient on-line measuring device of composite insulator umbrella skirt |
| CN209878633U (en) * | 2019-03-26 | 2019-12-31 | 贵州电网有限责任公司 | Vertical detection device of composite insulator full skirt |
| CN209656296U (en) * | 2019-05-13 | 2019-11-19 | 苏州倍嘉力机械科技有限公司 | A kind of durable detection device of automobile control arm assembly |
| CN110412065A (en) * | 2019-06-19 | 2019-11-05 | 广西电网有限责任公司电力科学研究院 | A kind of nmr sensor for composite insulator ageing management |
Non-Patent Citations (5)
| Title |
|---|
| XU ZHENG: "Novel Unilateral NMR Sensor for Assessing the Aging Status of Silicone Rubber Insulator", 《IEEE SENSORS JOURNAL》 * |
| ZHENG XU: "A Portable NMR Sensor Used for Assessing the Aging Status of Silicone Rubber Insulator", 《APPLIED MAGNETIC RESONANCE》 * |
| 夏云峰: "复合绝缘子老化状态核磁共振分析方法", 《高压电器》 * |
| 徐征;吴嘉敏;: "用于复合绝缘子伞裙老化状态检测的单边核磁共振传感器", 电工技术学报, no. 12 * |
| 杨挺;余登洁;夏云峰;尹创荣;尹成;徐征;何为;: "复合绝缘子伞裙老化状态检测的单边核磁共振传感器", 重庆大学学报, no. 05 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102735706B (en) | Nuclear magnetic resonance sensor used for nondestructive aging resonance of umbrella skirt of composite insulator | |
| Anferova et al. | Construction of a NMR‐MOUSE with short dead time | |
| CN108845279B (en) | A kind of permanent magnetism low field miniaturization nuclear magnetic resonance chemical analyser field frequency interlock system and method | |
| CN110261800A (en) | One kind being directed to ferritic high precision low frequency complex permeability measuring device and method | |
| CN216485290U (en) | Electromagnetic compatibility detection device of artificial intelligence thing networking | |
| CN208125649U (en) | A kind of nmr sensor for composite insulator umbrella skirt aging non-destructive testing | |
| Brunner et al. | A symmetrically fed microstrip coil array for 7T | |
| CN111929340A (en) | Composite insulating material NMR formula nondestructive test device convenient to use | |
| CN109458961B (en) | Portable wave-absorbing coating thickness measuring device and method | |
| CN207764307U (en) | The surface charge measuring device of insulating materials | |
| CN115656901A (en) | Magnetic resonance magnetometer device for millitesla-level magnetic field measurement | |
| CN116299122A (en) | Position adjusting device and method for ultrahigh frequency sensor | |
| CN109298368A (en) | A kind of partial-discharge ultrahigh-frequency sensor height equivlent compensation measuring system and method | |
| CN208443994U (en) | A kind of specimen holder device for the test of magneto-electric coupled coefficient | |
| Cui et al. | Development of electromagnetic tomography system using LCR meter | |
| CN203069262U (en) | Clamping fixture for noise measurement of motor | |
| CN110244241B (en) | Measuring method and device for obtaining microwave magnetic field distribution in microwave cavity | |
| JP2010028247A (en) | Antenna device | |
| CN208520793U (en) | A kind of open nuclear magnetic resonance sensor | |
| CN106802358B (en) | Easy-to-detach radio frequency coil device for detecting composite insulator | |
| CN211318652U (en) | High-frequency radiation insulation instrument detector | |
| CN209690233U (en) | It is a kind of for detecting the lossless device of power equipment composite material | |
| CN217007434U (en) | High-precision direct-current analog resistance generator | |
| CN112683992B (en) | Positioning device and method capable of simultaneously detecting magnetic acoustic signals and electric field by noise-containing shielding | |
| CN210564504U (en) | Nuclear magnetic resonance oil gas downhole fluid analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |