CN205193253U - Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement - Google Patents
Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement Download PDFInfo
- Publication number
- CN205193253U CN205193253U CN201520833744.1U CN201520833744U CN205193253U CN 205193253 U CN205193253 U CN 205193253U CN 201520833744 U CN201520833744 U CN 201520833744U CN 205193253 U CN205193253 U CN 205193253U
- Authority
- CN
- China
- Prior art keywords
- circular arc
- composite insulator
- lower circular
- double
- frequency coil
- 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.)
- Withdrawn - After Issue
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 239000012212 insulator Substances 0.000 title claims abstract description 40
- 230000032683 aging Effects 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 title abstract description 5
- 238000004804 winding Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000005481 NMR spectroscopy Methods 0.000 description 22
- 101100537937 Caenorhabditis elegans arc-1 gene Proteins 0.000 description 8
- 230000003068 static effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000004471 energy level splitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The utility model discloses a double-deck surrounding type radio frequency coil for composite insulator full skirt aging measurement, it is the annular coil of upper and lower two-layer structure, the underlying structure comprises to the convex several of intra-annular center that sets up along its periphery on the annular, it is upwards through the lead wire between the adjacent lower circular arc, the circular arc constitutes superstructure on the several that is the same with lower circular arc size and the same orientation, form annular space under circular arc and the several between the circular arc on the several, every goes up the orthographic projection of circular arc on two adjacent lower circular arcs that link to each other with it and these two circular arc parts overlap down, the periphery that holds up composite insulator full skirt through annular space block makes the circular arc and hugs closely with lower circular arc, thereby measure the radio frequency coil fastening on composite insulator full skirt. The utility model discloses the block can be measured on the periphery of composite insulator full skirt, and convenient to use can measure the whole of composite insulator full skirt, can estimate the whole ageing degree of composite insulator full skirt.
Description
Technical field
The utility model relates to a kind of planar radio frequency coils, particularly relates to a kind of double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging.
Background technology
Nuclear magnetic resonance is, under the effect of material atom nuclear magnetic moment outside magnetic field, energy level splitting occurs, and produces the physical phenomenon of energy level transition under the effect of external RF field.Since from nineteen forty-six, the people such as American scientist Bloch, Purcell finds nuclear magnetic resonance absorption phenomenon, nuclear magnetic resonance technique is obtained for unprecedented development in the field such as Wave Spectrum, medical imaging, greatly promoted the progress of human society.
The nuclear magnetic resonance equipment of using NMR technology comprises high-field nuclear magnetic resonance equipment and low-field nuclear magnetic resonance equipment.Common high-field nuclear magnetic resonance equipment, such as nuclear magnetic resonance spectrometer, medical magnetic resonance imager etc. have the inferior positions such as bulky, heavy, poor mobility, and the application in its Site Detection at actual sample (the real-time monitoring to patient's state of an illness) is restricted; In addition, the sample of high-field nuclear magnetic resonance equipment must be placed in there is a certain size closed magnet chamber in can be measured, this makes high-field nuclear magnetic resonance can not carry out Non-Destructive Testing to the large sample with arbitrary shape.And low-field nuclear magnetic resonance equipment is open, portable with it, the characteristic that can measure the sample with arbitrary shape, compensate for the deficiency of high-field nuclear magnetic resonance equipment, become the advanced subject of nuclear magnetic resonance technique research gradually.
No matter be high-field nuclear magnetic resonance equipment, or low-field nuclear magnetic resonance equipment, in nuclear magnetic resonance, radio-frequency (RF) magnetic field produces by radio-frequency coil.Radio-frequency coil has the effect exciting and receive NMR signal concurrently, under radio-frequency pulse effect, namely trigger the H core generation magnetic resonance of characteristic frequency in sample, and receives in trigger pulse closedown the NMR signal sensed afterwards.Low-field nuclear magnetic resonance planar radio frequency coils common at present has planar spiral winding and figure of eight planar coil.Wherein, planar spiral winding is the design philosophy based on single electric current current-carrying conductor, and the radio-frequency (RF) magnetic field that it produces is perpendicular to coil surface; Figure of eight planar coil is then the design philosophy of the current-carrying ring flowing through inverse current based on two, and the radio-frequency (RF) magnetic field that it produces is parallel to coil surface.
According to nuclear magnetic resonance principle, the radio-frequency (RF) magnetic field B that radio-frequency coil produces
1the static magnetic field B that will produce with magnet structure in target area
0orthogonal; Radio-frequency (RF) magnetic field B
1to try one's best evenly, resonate to excite more sample; Radio-frequency (RF) magnetic field B
1magnetic field intensity to try one's best greatly, make the NMR signal that receives as far as possible large.
For the static magnetic field B produced
0be parallel to the magnet structure of magnet surface, radio-frequency coil commonly uses planar spiral winding, the radio-frequency (RF) magnetic field B produced to make it
1at the static magnetic field B that target area and magnet structure produce
0orthogonal.But, at present for the radio-frequency coil that composite insulator umbrella skirt aging is measured, such as planar spiral winding and figure of eight planar coil, their structure makes it all only can carry out local measurement to the full skirt of composite insulator, and entirety measurement cannot be carried out to the full skirt of composite insulator, this causes the degree of aging of composite insulator umbrella skirt entirety can accurately not estimate, and the inner structure of radio-frequency coil can not be changed, and uses very flexible.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, cost is low, can measures, can estimate the overall degree of aging of composite insulator umbrella skirt to the entirety of composite insulator umbrella skirt, the easy to use double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging, its radio-frequency (RF) magnetic field produced in target area perpendicular to coil surface, the magnet structure that can be parallel to magnet surface with static magnetic field with the use of.
Above-mentioned purpose of the present utility model realizes by the following technical solutions: a kind of double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging, it is characterized in that: it is the toroid winding of upper and lower double-layer structure, wherein, understructure is made up of the several lower circular arc protruded to Huan Nei center arranged along its periphery in annular, between adjacent lower circular arc by lead-in wire upwards, identical with lower circular arc size and identical towards several upper circular arc form superstructure, annular space is formed between several upper circular arc and several lower circular arc, the orthogonal projection of each upper circular arc on two that are attached thereto adjacent lower circular arcs is overlapping with these two lower circular arcs local, the periphery being engaged composite insulator umbrella skirt by annular space makes upper circular arc and lower circular arc be close to, thus radio-frequency coil is fastened on composite insulator umbrella skirt measures.
The periphery that the utility model is fastened on composite insulator umbrella skirt can be measured, easy to use, can measure the entirety of composite insulator umbrella skirt, be estimated the overall degree of aging of composite insulator umbrella skirt, in addition, the utility model structure is simple, cost is low.
As a kind of improvement of the present utility model, the two ends of described lower circular arc are drawn extended line and are connected with the lower end of described lead-in wire by the segmental arc of annular, and the two ends of upper circular arc extraction extended line is directly connected with the upper end of described lead-in wire.
The utility model can also realize the local measurement of composite insulator umbrella skirt, as further improvement of the utility model, be connected by line between adjacent upper circular arc and be provided with switch on this line, be connected by line respectively between adjacent lower circular arc and between the upper circular arc of two lower circular arcs and common connection with it and be provided with single-pole double-throw switch (SPDT) on this line, conducting between adjacent lower circular arc is controlled by single-pole double-throw switch (SPDT), go up switch conduction between circular arc independent mutually with lower circular arc and connect separately to realize upper circular arc simultaneously, or conducting between circular arc and the lower circular arc be attached thereto in control, go up switch cutoff between circular arc to realize the series connection successively of upper circular arc and lower circular arc simultaneously.By conducting and the cut-out of gauge tap, achieve the change of radio-frequency coil inner structure, enhance use dirigibility.
As a kind of embodiment of the present utility model, the central angle of described upper circular arc and lower circular arc is all more than or equal to 180 ° and is less than 360 °.
As a kind of preferred implementation of the present utility model, the length of described lead-in wire is 0.2 ~ 5.0mm, and namely the height of annular space is 0.2 ~ 5.0mm, in practical matter, can select according to the thickness of composite insulator umbrella skirt.
As a kind of embodiment of the present utility model, described radio-frequency coil is integrated coiling and forms.
Compared with prior art, the utility model has following significant technique effect:
(1) the utility model can be measured the entirety of composite insulator umbrella skirt, is estimated the overall degree of aging of composite insulator umbrella skirt.
(2) the periphery that the utility model is fastened on composite insulator umbrella skirt can be measured, easy to use.
(3) the utility model passes through conducting and the cut-out of gauge tap, achieves the change of radio-frequency coil inner structure, can measure, enhance use dirigibility to the local of composite insulator umbrella skirt.
(4) the utility model structure is simple, cost is low, is easy to realize, and is suitable for extensively promoting and being suitable for.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is that the utility model on-off circuit line is connected with coil with the schematic diagram of control coil internal structure change;
Fig. 5 is that the utility model is positioned at coil upper area magnetic vector directional diagram in use;
Fig. 6 is that the utility model is positioned at coil upper area magnetic field amplitude distribution plan in use.
Embodiment
As shown in Figures 1 to 3, it is a kind of double-deck circulating type radio-frequency coil 4 measured for composite insulator umbrella skirt aging of the utility model, be integrated coiling to form, it is the making toroidal coil of upper and lower double-layer structure, wherein, understructure is made up of the several lower circular arc 1 protruded to Huan Nei center arranged along its periphery in annular, between adjacent lower circular arc 1 by lead-in wire 2 upwards with identical with lower circular arc 1 size and identically formed superstructure towards forming several upper circular arc 3, the two ends of lower circular arc 1 are drawn extended line and are connected with the lower end of lead-in wire 2 by the segmental arc of annular, and the two ends extraction extended line of upper circular arc 3 is directly connected with the upper end of lead-in wire 2, annular space is formed between several upper circular arc 3 and several lower circular arc 1, the orthogonal projection of each upper circular arc 3 on two that are attached thereto adjacent lower circular arcs 1 with these two lower circular arcs 1 for local is overlapping, the periphery engaging composite insulator umbrella skirt by annular space makes that upper circular arc 3 and lower circular arc 1 are close to and is fastened on composite insulator umbrella skirt by radio-frequency coil and measures.The radio-frequency (RF) magnetic field that target area in annular space produces perpendicular to radio-frequency coil surface, the magnet structure that can be parallel to magnet surface with static magnetic field with the use of.
In the present embodiment, the copper conductor live width of radio-frequency coil is 0.2mm, and line thickness is 0.2mm, and the radius of upper circular arc and lower circular arc is 1.12mm, and the length of extended line is 0.5mm, and the height of lead-in wire 2 is 1mm, radius of curvature 10.5mm, leap angle 8 °.In other embodiments, the length of lead-in wire 2 is 0.2 ~ 5.0mm, and namely the height of annular space is 0.2 ~ 5.0mm, in practical matter, can select according to the thickness of composite insulator umbrella skirt.The central angle of upper circular arc 3 and lower circular arc 1 is all more than or equal to 180 ° and is less than 360 °.Upper circular arc 3 and lower circular arc 1 are all tool annulars jaggy, and they are not all complete annulus, to prevent short circuit.
Be connected by line between adjacent upper circular arc and be provided with switch on this line, be connected by line respectively between adjacent lower circular arc and between the upper circular arc of these two lower circular arcs and common connection with it and be provided with single-pole double-throw switch (SPDT) on this line, conducting between adjacent lower circular arc is controlled by single-pole double-throw switch (SPDT), go up switch conduction between circular arc independent mutually with lower circular arc and connect separately to realize upper circular arc simultaneously, or conducting between circular arc and the lower circular arc be attached thereto in control, go up switch cutoff between circular arc to realize the series connection successively of upper circular arc and lower circular arc simultaneously.Specifically, as shown in Figure 4, on line taking circle, five circular arcs of adjacent connection are example, the upper circular arc of I, III, V is a part for superstructure, under II, IV, circular arc is a part for understructure, controlled the series-parallel system of upper and lower Rotating fields by K switch 1, K2, K3, K4, K5, K6, wherein K2, K3 are single-pole double-throw switch (SPDT).K1, K4 are closed, and K2, K3 connect circular arc on III, and K5, K6 disconnect, and upper and lower double-layer structure is connected in series mutually, is the connected mode of normal conditions lower coil.To change the connected mode of upper and lower double-layer structure, then disconnect K1, K4, closed K5, K6, K2, K3 are allocated to below line, the now adjacent upper circular arc series connection of superstructure, the adjacent lower circular arc of understructure is also connected, and upper and lower double-layer structure is independently existed.By conducting and the cut-out of gauge tap, achieve the change of radio-frequency coil inner structure, can measure the local of composite insulator umbrella skirt, enhance use dirigibility.
As shown in Figure 4, the target area 5 of the utility model radio-frequency coil is the sandwiched area (i.e. annular space) between upper and lower Rotating fields, and magnetic direction is perpendicular to coil surface.The target area 5 marked is distance underlying structure surface 0.3mm place, the region of 0.8mm × 0.6mm × 0.5mm.This planar radio frequency coils radio-frequency (RF) magnetic field that target area produces between levels coil perpendicular to coil surface, the magnet structure being applicable to be parallel to static magnetic field magnet surface with the use of.
As shown in Figure 4, in target area, the magnetic field intensity of radio-frequency (RF) magnetic field is higher, and Distribution of Magnetic Field is more concentrated.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (5)
1. the double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging, it is characterized in that: it is the toroid winding of upper and lower double-layer structure, wherein, understructure is made up of the several lower circular arc protruded to Huan Nei center arranged along its periphery in annular, between adjacent lower circular arc by lead-in wire upwards, identical with lower circular arc size and identical towards several upper circular arc form superstructure, annular space is formed between several upper circular arc and several lower circular arc, the orthogonal projection of each upper circular arc on two that are attached thereto adjacent lower circular arcs is overlapping with these two lower circular arcs local, the periphery being engaged composite insulator umbrella skirt by annular space makes upper circular arc and lower circular arc be close to, thus radio-frequency coil is fastened on composite insulator umbrella skirt measures.
2. the double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging according to claim 1, it is characterized in that: extended line is drawn at the two ends of lower circular arc, be connected with the lower end of described lead-in wire by the segmental arc of annular again, and the two ends of upper circular arc extraction extended line is directly connected with the upper end of described lead-in wire.
3. the double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging according to claim 1 and 2, it is characterized in that: be connected by line between adjacent upper circular arc and be provided with switch on this line, be connected by line respectively between adjacent lower circular arc and between the upper circular arc that jointly connects with it of these two lower circular arcs, and single-pole double-throw switch (SPDT) is provided with on this line, conducting between adjacent lower circular arc is controlled by single-pole double-throw switch (SPDT), go up switch conduction between circular arc independent mutually with lower circular arc and connect separately to realize upper circular arc simultaneously, or conducting between circular arc and the lower circular arc be attached thereto in control, go up switch cutoff between circular arc to realize the series connection successively of upper circular arc and lower circular arc simultaneously.
4. the double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging according to claim 3, is characterized in that: the central angle of described upper circular arc and lower circular arc is all more than or equal to 180 ° and is less than 360 °.
5. the double-deck circulating type radio-frequency coil measured for composite insulator umbrella skirt aging according to claim 4, is characterized in that: the length of described lead-in wire is 0.2 ~ 5.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833744.1U CN205193253U (en) | 2015-10-23 | 2015-10-23 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833744.1U CN205193253U (en) | 2015-10-23 | 2015-10-23 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193253U true CN205193253U (en) | 2016-04-27 |
Family
ID=55786232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833744.1U Withdrawn - After Issue CN205193253U (en) | 2015-10-23 | 2015-10-23 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223525A (en) * | 2015-10-23 | 2016-01-06 | 广东电网有限责任公司东莞供电局 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
-
2015
- 2015-10-23 CN CN201520833744.1U patent/CN205193253U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223525A (en) * | 2015-10-23 | 2016-01-06 | 广东电网有限责任公司东莞供电局 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
| CN105223525B (en) * | 2015-10-23 | 2017-03-22 | 广东电网有限责任公司东莞供电局 | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9684044B2 (en) | Magnetic resonance imaging apparatus and antenna device | |
| JP4490966B2 (en) | High frequency MRI coil | |
| FI88080C (en) | Radio frequency winding for nuclear magnetic resonance | |
| CN105158561A (en) | Adjustable transmission sub quantum bit system based on oxygen-free copper rectangular resonant cavity | |
| CN104698411B (en) | For the Multi-channel radio-frequency coil of open type magnetic resonance imaging (MRI) system | |
| US20150295320A1 (en) | Modified folded dipole antenna arrangement | |
| CN205139243U (en) | Adjustable transmon quantum bit system based on coalesced copper rectangular cavity | |
| CN205193253U (en) | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement | |
| CN106841264A (en) | A kind of nmr sensor for detecting composite insulator umbrella skirt | |
| CN103166330B (en) | Adjustable radio-frequency power supply capable of producing multiple pole fields | |
| US5998998A (en) | Gradient coil for NMR devices | |
| CN204044346U (en) | A kind of planar radio frequency coils for nuclear magnetic resonance | |
| CN104934289B (en) | Ion trap mass analyzer and signal applying method thereof | |
| CN105223525A (en) | Double-layer surrounding type radio frequency coil for composite insulator umbrella skirt aging measurement | |
| CN108663641A (en) | Radio-frequency coil for magnetic resonance equipment | |
| CN205193260U (en) | A hug closely formula bilayer plane radio frequency coil for composite insulator detects | |
| US20170356864A1 (en) | Measuring apparatus for weak electromagnetic signals from a sample at low frequencies, in addition to a method | |
| CN104215808B (en) | A kind of current divider for measuring alternating current | |
| CN204287308U (en) | A kind of New type of current sensor adopting Rogowski coil principle | |
| CN106935388B (en) | A kind of Multiple coil magnetic coupling receiving coil structure | |
| Marracci et al. | Design of accurate Rogowski coil for high transient currents | |
| CN114631033A (en) | Magnetic resonance volume coil with multiple independent transmit receive channels | |
| CN201569734U (en) | Radio-frequency coil for open magnetic resonance imaging system | |
| CN205301555U (en) | A shoulder formula RF coil device for magnetic resonance imaging system | |
| EP4293376A1 (en) | Magnetic field enhancement assembly and magnetic field enhancement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |