CN105223664A - Light cone and CCD self-adaptation coupling device - Google Patents
Light cone and CCD self-adaptation coupling device Download PDFInfo
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- CN105223664A CN105223664A CN201510744851.1A CN201510744851A CN105223664A CN 105223664 A CN105223664 A CN 105223664A CN 201510744851 A CN201510744851 A CN 201510744851A CN 105223664 A CN105223664 A CN 105223664A
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- ccd
- light cone
- sleeve
- self
- coupling device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4286—Optical modules with optical power monitoring
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Measurement Of Radiation (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides a kind of light cone and CCD self-adaptation coupling device, comprise a ccd detector, a light cone, an XRF screen, a light cone sleeve, a CCD sleeve and at least one Flexible Connector.The present invention can ensure that between light cone and CCD, coupling is tight, and optical property is good.Light cone and CCD are Elastic Coupling, and being subject to that External Force Acting deforms or be shifted once light cone or CCD can self-resetting, can ensure self-adaptation close-coupled between light cone and CCD.Meanwhile, components and parts convenient disassembly of the present invention, for ease of maintenaince, effectively reduces maintenance cost.
Description
Technical field
This product relates to a kind of light cone and CCD self-adaptation coupling device.
Background technology
X-ray imaging technology has application widely in medical diagnosis, biomedical imaging, material science and industrial nondestructive testing.In actual applications, the detector with high resolving power and Large visual angle is usually needed.Adopt the method for light cone and CCD coupling can realize Large visual angle, high-resolution requirement.At present, light cone and CCD adopt fixed coupling usually, although this coupling process can make CCD and light-cone QCD sum rules closely, stability is strong; Its weak point is, because fixed coupling employing is rigidly connected, when system is subject to External Force Acting, light cone or CCD easily deform or be shifted, and destroys the syntagmatic of light cone and CCD, destroys the optical property of system.In addition, occur damaging once CCD or light cone, device cannot be dismantled, and maintenance difficulty is large, sometimes can only integral replacing, and its maintenance cost is quite high.
Summary of the invention
The object of the invention is to, provide a kind of light cone and CCD self-adaptation coupling device, the system architecture effectively existed in solution prior art is easily damaged, maintenance difficulty is large, maintenance cost high-technology problem.
For achieving the above object, the invention provides a kind of light cone and CCD self-adaptation coupling device, comprise a ccd detector, a light cone, an XRF screen, a light cone sleeve, a CCD sleeve and at least one Flexible Connector.
Described ccd detector comprises: a detector housing; One CCD installation panel, is arranged at described detector housing front end; One CCD fibre faceplate, is arranged in the middle part of described CCD installation panel, and protrudes from described CCD installation panel; And a CCD fibre faceplate front end face, be positioned at described CCD fibre faceplate front end.
Described light cone comprises an integrated cylindrical portion and a round platform portion; Described light cone two ends comprise a large end face and a small end face respectively, and described small end face is of coupled connections to described CCD fibre faceplate front end face.
Described XRF screen is of coupled connections to described large end face.
It is outside that described light cone jacket casing is located at described light cone, and be fixedly installed to described light cone.
Described CCD jacket casing is located at described light cone sleeve and described CCD fibre faceplate is outside, and is fixedly installed to described CCD installation panel.
Described Flexible Connector two ends are connected to described light cone sleeve, described CCD sleeve respectively.
Further, described light cone sleeve comprises a light cone ferrule barrel; And an annular erecting device, be arranged on the lateral wall of described light cone ferrule barrel one end, in order to fixedly mount described Flexible Connector.
Further, described light cone sleeve comprises at least one elastic component mounting hole, is evenly arranged on described annular erecting device; Described light cone sleeve comprises at least one coupling bolt, comprise an integrated screw rod and a bolt head, described screw rod movable is arranged in an elastic component mounting hole, and described screw front end is fixedly installed to described CCD sleeve, and described bolt head is placed in this elastic component mounting hole; Described Flexible Connector is a spring, and be arranged in an elastic component mounting hole, described spring housing is located on a screw rod, and its one end is supported to described light cone sleeve, and its other end supports to should a bolt head of screw rod.
Further, described Flexible Connector is at least one extension spring, and its one end is connected to described annular erecting device, and its other end is connected to described CCD sleeve.
Further, described light cone and CCD self-adaptation coupling device also comprise a dead ring, and be sheathed on the cylindrical portion lateral wall of described light cone, described dead ring is provided with a breach; The position of described annular erecting device is corresponding with the position of the cylindrical portion of described light cone; The sidewall of described annular erecting device is provided with at least one pilot hole, is provided with a bolt in each pilot hole, and each bolt all withstands on described dead ring, is fixed on described light cone by described light cone sleeve by described dead ring.
Further, described CCD sleeve comprises a CCD ferrule barrel; One annular flange, is fixedly installed to described CCD installation panel by least one securing member; And an annular mounting plate, be arranged in CCD ferrule barrel, in order to fixedly mount described Flexible Connector.
Further, described light cone and CCD self-adaptation coupling device also comprise a carbon fiber board, are of coupled connections to described XRF and shield; One shading cover plate, is fixedly attached to described CCD ferrule barrel; Described shading cover plate is provided with at least one cover plate screw; One clamping washer, is arranged between described carbon fiber board and described shading cover plate; And at least one ripple pearl screw, by described cover plate screw, described clamping washer is fixed to carbon fiber board.
Further, described shading cover plate is provided with: at least one cover plate screw, is positioned on same circle; At least one ripple pearl screw, is positioned on same circle; And at least one ripple pearl screw, be mounted to respectively in each ripple pearl screw.
Further, described carbon fiber board is circular, and its diameter dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect; Described clamping washer is annular, and its outside dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect.
Further, described XRF screen is for circular, and its diameter dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect.
The invention has the advantages that, propose a kind of light cone and CCD self-adaptation coupling device, can ensure that between light cone and CCD, coupling is tight, optical property is good.Light cone and CCD are Elastic Coupling, and being subject to that External Force Acting deforms or be shifted once light cone or CCD can self-resetting, can ensure self-adaptation close-coupled between light cone and CCD.Meanwhile, components and parts convenient disassembly of the present invention, for ease of maintenaince, effectively reduces maintenance cost.
Accompanying drawing explanation
Figure 1 shows that the one-piece construction schematic diagram of the embodiment of the present invention 1;
Figure 2 shows that the cross-sectional view of the embodiment of the present invention 1;
Figure 3 shows that the decomposition texture schematic diagram of the embodiment of the present invention 1;
Figure 4 shows that the structural representation of ccd detector part in the embodiment of the present invention 1;
Figure 5 shows that the structural representation of light cone part in the embodiment of the present invention 1;
Figure 6 shows that the structural representation of light cone sleeve part in the embodiment of the present invention 1;
Figure 7 shows that the cross-sectional view of annular erecting device part-structure in the embodiment of the present invention 1;
Figure 8 shows that the structural representation of CCD sleeve part in the embodiment of the present invention 1.
In figure, component identification is as follows:
1, ccd detector, 2, light cone, 3, XRF screen, 4, light cone sleeve, 5, CCD sleeve, 6, Flexible Connector, 7, dead ring, 8, carbon fiber board, 9, shading cover plate, 10, clamping washer;
11, detector housing, 12, CCD installation panel, 13, CCD fibre faceplate, 14, CCD fibre faceplate front end face;
21, cylindrical portion, 22, round platform portion, 23, large end face, 24, small end face;
41, light cone ferrule barrel, 42, annular erecting device, 43, elastic component mounting hole, 44, coupling bolt, 45, pilot hole;
51, CCD ferrule barrel, 52, annular flange, 53, annular mounting plate, 54, connecting screw hole, 55, cover plate mounting hole;
61, spring, 71, breach; 91, cover plate screw, 92, ripple pearl screw; 441, coupling bolt head, 442, connecting screw rod.
Embodiment
Introduce two preferred embodiments of the present invention below with reference to Figure of description, prove that the present invention can implement, these embodiments can, to the present invention of those of skill in the art's complete description, make its technology contents clearly understand with being convenient to.The present invention can be embodied by many multi-form embodiments, and protection scope of the present invention is not limited only to the embodiment mentioned in literary composition.
In the accompanying drawings, the parts that structure is identical represent with same numbers label, and structure or intimate assembly represent with similar number designation everywhere.Size and the thickness of each assembly shown in the drawings illustrate arbitrarily, and the present invention does not limit size and the thickness of each assembly.In order to make diagram more clear, in accompanying drawing, some place suitably exaggerates the thickness of parts.
The direction term that the present invention mentions; such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc.; be only the direction in accompanying drawing, be only used to explain and the present invention is described, instead of be used for limiting protection scope of the present invention.
When some assembly be described to " " another assembly " on " time, described assembly can directly be placed on another assembly described; Also can there is an intermediate module, described assembly is placed on described intermediate module, and described intermediate module is placed on another assembly.When an assembly is described to " being mounted to " or " being connected to " another assembly, the two can be understood as directly " installation " or " connection ", or an assembly is by an intermediate module " being mounted to " or " being connected to " another assembly indirectly.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, embodiment 1 provides a kind of light cone and CCD self-adaptation coupling device, comprises ccd detector 1, light cone 2, XRF screen 3, one light cone sleeve 4, CCD sleeve 5 and an at least one Flexible Connector 6.
As shown in Figure 4, ccd detector 1 comprises: a detector housing 11; One CCD installation panel 12, is arranged at detector housing 11 front end; One CCD fibre faceplate 13, is arranged in the middle part of CCD installation panel 12, and protrudes from CCD installation panel 12; And a CCD fibre faceplate front end face 14, be positioned at CCD fibre faceplate 13 front end.
As shown in Figure 5, light cone 2 comprises integrated cylindrical portion 21 and a round platform portion 22; Light cone 2 two ends comprise a large end face 23 respectively; And a small end face 24, be of coupled connections to CCD fibre faceplate front end face 14.XRF screen 3 is of coupled connections to large end face 23.It is outside that light cone sleeve 4 is sheathed on light cone 2, and be fixedly installed to light cone 2.CCD sleeve 5 is sheathed on light cone sleeve 4 and CCD fibre faceplate 13 is outside, and is fixedly installed to CCD installation panel 12.
As shown in Figure 6, Figure 7, light cone sleeve 4 comprises a light cone ferrule barrel 41; And an annular erecting device 42, be arranged on the lateral wall of light cone ferrule barrel 41 1 end, in order to fixedly mount Flexible Connector 6, Flexible Connector 6 two ends are connected to light cone sleeve 4, CCD sleeve 5 respectively.Light cone sleeve 4 also comprises at least one elastic component mounting hole 43, is evenly arranged on annular erecting device 42, the central axis of each elastic component mounting hole 43 and the centerline axis parallel of light cone sleeve 4.Light cone sleeve 4 also comprises one or more coupling bolt 44, each coupling bolt 44 comprises integrated coupling bolt head 441 and a connecting screw rod 442, connecting screw rod 442 movable is arranged in an elastic component mounting hole 43, connecting screw rod 442 front end is fixed on CCD sleeve 5, and the coupling bolt head 441 of connecting screw rod 442 end is placed in this elastic component mounting hole 43.
As shown in Figure 8, CCD sleeve 5 comprises a CCD ferrule barrel 51; One annular flange 52, is fixedly installed on ccd detector 1 by least one securing member by CCD sleeve 5, and described securing member is CCD set bolt, and multiple CCD set bolt is positioned on same circle; One annular mounting plate 53, is arranged in CCD ferrule barrel 51, in order to install Flexible Connector 6.Annular mounting plate 53 is provided with at least one connecting screw hole 54, and screw rod 442 front end is fixedly mounted in connecting screw hole 54, and multiple connecting screw hole 54 is positioned on same circle.The cross section at CCD ferrule barrel 51 edge is provided with at least one cover plate mounting hole 55, and in order to install cover plate 9, multiple cover plate mounting hole 55 is positioned on same circle.
In the present embodiment 1, Flexible Connector 6 is a spring 61, and spring 61 is arranged in an elastic component mounting hole 43, and is enclosed within screw rod 442, and its one end is supported to light cone sleeve 4, and its other end supports to bolt head 441.
As shown in Figure 2 and Figure 3, embodiment 1 also comprises a dead ring 7, and be sheathed on cylindrical portion 21 lateral wall of light cone 2, dead ring 7 is provided with a breach 71, in order to adjust the size of dead ring 7, make the size of dead ring 7 internal diameter can adapt to the size of light cone 2 cylindrical portion 21 lateral wall.The annular position of erecting device 42 is corresponding with the position of the cylindrical portion 21 of light cone 2; The sidewall of annular erecting device 42 is provided with at least one pilot hole 45, and be provided with a bolt (not shown) in each pilot hole 45, each bolt (not shown) all withstands on dead ring 7, is fixed on light cone 2 by light cone sleeve 4 by dead ring 7.
As shown in Figure 2 and Figure 3, embodiment 1 also comprises a carbon fiber board 8, is of coupled connections to XRF screen 3; One shading cover plate 9, is fixedly attached to CCD ferrule barrel 51, and each elastic component mounting hole 43 is just to shading cover plate 9; One clamping washer 10, is arranged between carbon fiber board 8 and shading cover plate 9.Shading cover plate 9 is provided with at least one cover plate screw 91, and multiple cover plate screw 91 is positioned on same circle, and cover plate screw 91 is corresponding with cover plate mounting hole 55, is provided with a screw (not shown) in each group cover plate screw 91 and cover plate mounting hole 55; Shading cover plate 9 is provided with at least one ripple pearl screw 92, and multiple ripple pearl screw 92 is positioned on same circle, is provided with a ripple pearl screw (not shown), clamping washer 10 is fixed to carbon fiber board 8 in each ripple pearl screw 92.
Carbon fiber board 8 is circular, and the diameter dimension of carbon fiber board 8 is corresponding to the diameter dimension of CCD ferrule barrel 51 madial wall xsect; Clamping washer 10 is annular, and the outside dimension of clamping washer 10 is corresponding to the diameter dimension of CCD ferrule barrel 51 madial wall xsect.XRF screen 3 is circular, and it is corresponding to the diameter dimension of CCD ferrule barrel 51 madial wall xsect that XRF shields 3 diameter dimensions.
Embodiment 1 is in installation process, dead ring 7 is enclosed within the lateral wall of the cylindrical portion 21 of light cone 2, breach 71 on dead ring 7 can regulate the size of dead ring 7, by multiple bolt 46 through the pilot hole 45 on light cone sleeve 4, bolt 46 front end withstands on dead ring 7, is fixed on light cone 2 by light cone sleeve 4.Meanwhile, utilize four equally distributed securing members (bolt) that CCD sleeve 5 is fixedly installed to CCD installation panel 12.Light cone sleeve 4 is arranged in CCD sleeve 5, light cone small end face 24 is made to be of coupled connections to CCD fibre faceplate front end face 14, in each elastic component mounting hole 43 of light cone sleeve 4, spring 61 and a bolt 44 is installed, it is outside that spring 61 is enclosed within screw rod 442, one end of spring 61 is against in elastic component mounting hole 43, its other end is against on bolt head 441, and screw rod 442 front end is inserted in connecting screw hole 54.Be of coupled connections to light cone large end face 23 by XRF screen 3, carbon fiber board 8 is of coupled connections to XRF screen 3, and be then arranged on CCD sleeve 5 by shading cover plate 9, clamping washer 10 pads between shading cover plate 9 and carbon fiber board 8.
In the embodiment of the present invention 1, ccd detector 1 and CCD sleeve 5 are fixed together, and light cone 2 and light cone sleeve 4 are fixed together, and light cone sleeve 4 is fixedly connected with by elastic component with CCD sleeve 5, change being rigidly connected of script into elasticity connection.
Two critical pieces of embodiment 1, once there is position skew, the two situation that can not be of coupled connections well together in ccd detector 1 or light cone 2, the acting in conjunction of multiple spring 61 can make it reset, and makes the two can realize coupling as early as possible.Detector 1 or light cone 2 damage once appearance, and the two can very Quick demounting, easy to maintenance, changes parts convenient, effectively reduces maintenance cost.
Embodiment 2
The technical scheme major part of embodiment 2 is identical with embodiment 1, and its difference technical characteristic is, in embodiment 2, Flexible Connector 6 is at least one extension spring (not shown), and its one end is connected to annular erecting device 42, and its other end is connected to CCD sleeve 5.Extension spring herein can be a larger extension spring, is set in outside light cone sleeve 4, and is positioned at CCD sleeve 5.Extension spring herein can be also multiple less extension spring, in its acting in conjunction, realizes the technique effect of member reset.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. light cone and a CCD self-adaptation coupling device, is characterized in that, comprising:
One ccd detector, comprises
One detector housing;
One CCD installation panel, is arranged at described detector housing front end;
One CCD fibre faceplate, is arranged in the middle part of described CCD installation panel, and protrudes from described CCD installation panel; And
One CCD fibre faceplate front end face, is positioned at described CCD fibre faceplate front end;
One light cone, comprises an integrated cylindrical portion and a round platform portion; Described light cone two ends comprise respectively
One large end face; And
One small end face, is of coupled connections to described CCD fibre faceplate front end face;
One XRF screen, is of coupled connections to described large end face;
One light cone sleeve, is sheathed on described light cone outside, and is fixedly installed to described light cone;
One CCD sleeve, is sheathed on described light cone sleeve and described CCD fibre faceplate is outside, and is fixedly installed to described CCD installation panel; And
At least one Flexible Connector, its two ends are connected to described light cone sleeve, described CCD sleeve respectively.
2. light cone as claimed in claim 1 and CCD self-adaptation coupling device, it is characterized in that, described light cone sleeve comprises
One light cone ferrule barrel; And
One annular erecting device, is arranged on the lateral wall of described light cone ferrule barrel one end, in order to fixedly mount described Flexible Connector.
3. light cone as claimed in claim 2 and CCD self-adaptation coupling device, it is characterized in that, described light cone sleeve comprises
At least one elastic component mounting hole, is evenly arranged on described annular erecting device; And
At least one coupling bolt, comprises an integrated screw rod and a bolt head, and described screw rod movable is arranged in an elastic component mounting hole, and described screw front end is fixedly installed to described CCD sleeve, and described bolt head is placed in this elastic component mounting hole;
Described Flexible Connector is a spring, and be arranged in an elastic component mounting hole, described spring housing is located on a screw rod, and its one end is supported to described light cone sleeve, and its other end supports to should a bolt head of screw rod.
4. light cone as claimed in claim 2 and CCD self-adaptation coupling device, it is characterized in that, described Flexible Connector is at least one extension spring, and its one end is connected to described annular erecting device, and its other end is connected to described CCD sleeve.
5. light cone as claimed in claim 2 and CCD self-adaptation coupling device, it is characterized in that, also comprise a dead ring, be sheathed on the cylindrical portion lateral wall of described light cone, described dead ring is provided with a breach; The position of described annular erecting device is corresponding with the position of the cylindrical portion of described light cone; The sidewall of described annular erecting device is provided with at least one pilot hole, is provided with a bolt in each pilot hole, and each bolt all withstands on described dead ring, is fixed on described light cone by described light cone sleeve by described dead ring.
6. light cone as claimed in claim 1 and CCD self-adaptation coupling device, it is characterized in that, described CCD sleeve comprises
One CCD ferrule barrel;
One annular flange, is fixedly installed to described CCD installation panel by least one securing member; And
One annular mounting plate, is arranged in CCD ferrule barrel, in order to fixedly mount described Flexible Connector.
7. light cone as claimed in claim 6 and CCD self-adaptation coupling device, is characterized in that, also comprise
One carbon fiber board, is of coupled connections to described XRF and shields;
One shading cover plate, is fixedly attached to described CCD ferrule barrel; Described shading cover plate is provided with at least one cover plate screw;
One clamping washer, is arranged between described carbon fiber board and described shading cover plate; And
At least one ripple pearl screw, by described cover plate screw, is fixed to carbon fiber board by described clamping washer.
8. light cone as claimed in claim 7 and CCD self-adaptation coupling device, it is characterized in that, described shading cover plate is provided with:
At least one cover plate screw, is positioned on same circle;
At least one ripple pearl screw, is positioned on same circle; And
At least one ripple pearl screw, is mounted in each ripple pearl screw respectively.
9. light cone as claimed in claim 7 and CCD self-adaptation coupling device, is characterized in that, described carbon fiber board is circular, and its diameter dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect; Described clamping washer is annular, and its outside dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect.
10. light cone as claimed in claim 1 and CCD self-adaptation coupling device, is characterized in that, described XRF screen is for circular, and its diameter dimension is corresponding to the diameter dimension of described CCD ferrule barrel madial wall xsect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744851.1A CN105223664B (en) | 2015-11-06 | 2015-11-06 | light cone and CCD adaptive coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510744851.1A CN105223664B (en) | 2015-11-06 | 2015-11-06 | light cone and CCD adaptive coupling device |
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| Publication Number | Publication Date |
|---|---|
| CN105223664A true CN105223664A (en) | 2016-01-06 |
| CN105223664B CN105223664B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510744851.1A Active CN105223664B (en) | 2015-11-06 | 2015-11-06 | light cone and CCD adaptive coupling device |
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| CN (1) | CN105223664B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646862A (en) * | 2016-10-20 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Low-light-level ultrafast imaging detection system realized by air gap and setting method |
| CN108845394A (en) * | 2018-06-25 | 2018-11-20 | 重庆港宇高科技开发有限公司 | Light-cone QCD sum rules technique |
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| WO2008046414A1 (en) * | 2006-10-20 | 2008-04-24 | Lasos Lasertechnik Gmbh | Device for injecting light into an optical wave guide |
| CN203587846U (en) * | 2013-10-12 | 2014-05-07 | 鹤壁腾天光通信技术有限公司 | Bushing type fiber converter |
| CN204154904U (en) * | 2014-03-21 | 2015-02-11 | 深圳市日联科技有限公司 | X-ray detector |
| US20150286020A1 (en) * | 2013-05-09 | 2015-10-08 | Laser Mechanisms, Inc. | Fiber optic laser alignment tool |
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| DE102005018379A1 (en) * | 2005-04-21 | 2006-10-26 | Leopold Kostal Gmbh & Co. Kg | Optoelectronic sensor device, for detecting wetting of transparent motor vehicle panel, has construction element between coupling element and circuit board with holding elements for holding and positioning second circuit board near screen |
| WO2008046414A1 (en) * | 2006-10-20 | 2008-04-24 | Lasos Lasertechnik Gmbh | Device for injecting light into an optical wave guide |
| US20150286020A1 (en) * | 2013-05-09 | 2015-10-08 | Laser Mechanisms, Inc. | Fiber optic laser alignment tool |
| CN203587846U (en) * | 2013-10-12 | 2014-05-07 | 鹤壁腾天光通信技术有限公司 | Bushing type fiber converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106646862A (en) * | 2016-10-20 | 2017-05-10 | 中国科学院西安光学精密机械研究所 | Low-light-level ultrafast imaging detection system realized by air gap and setting method |
| CN108845394A (en) * | 2018-06-25 | 2018-11-20 | 重庆港宇高科技开发有限公司 | Light-cone QCD sum rules technique |
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| CN105223664B (en) | 2017-01-25 |
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