CN102778231B - Attenuation device for pulsar ground simulation system - Google Patents
Attenuation device for pulsar ground simulation system Download PDFInfo
- Publication number
- CN102778231B CN102778231B CN201210245529.0A CN201210245529A CN102778231B CN 102778231 B CN102778231 B CN 102778231B CN 201210245529 A CN201210245529 A CN 201210245529A CN 102778231 B CN102778231 B CN 102778231B
- Authority
- CN
- China
- Prior art keywords
- light
- pulsar
- tamponade
- hole
- source
- 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.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses an attenuation device for a pulsar ground simulation system, which mainly solves the problems that the light attenuation process is easily interfered by environment light, the attenuation cannot be accurately controlled and the attenuation is regulated complexly. The attenuation device comprises a light source cavity (1), a light source cavity sealing plug (2), an attenuation cavity (3), an attenuation part (4), a photon detector (5), a pulsar simulation light source circuit board (6) and a waterproof joint (7), wherein the pulsar simulation light source circuit board (6) is fixed on the inner wall of the light source cavity sealing plug (2), the waterproof joint (7) penetrates through the light source cavity sealing plug, the light source cavity sealing plug is fixed on the light inlet end of the light source cavity (1), the attenuation part (4) is fixed in a cavity body of the attenuation cavity (3), and the light inlet end and the light outlet end of the attenuation cavity are respectively connected with the light outlet end of the light source cavity (1) and the photon detector (5). According to the invention, the interference of the environment light is effectively shielded, the adjustable range of an attenuation coefficient is increased, and the attenuation is effectively controlled.
Description
Technical field
The invention belongs to optical attenuation technologies field, particularly a kind of light attenuation device, can be used for the light attenuation device in analog pulse starlight source in X-ray pulsar ground simulation system.
Background technology
X-ray pulsar is a kind of High Rotation Speed, highly magnetized " extremely " celestial body, and its rotation period is short, and degree of stability is high, and these features make in deep space, utilize X-ray pulsar to carry out navigation and time service becomes possibility.But the X-ray pulsar distance earth generally arrives hundreds of thousands light-year up to a hundred, X-ray pulse signal attenuation is comparatively serious, X-ray detector technology not yet full maturity, the measured test of X-ray pulsar signal there is no method to carry out, and therefore research X-ray pulsar signal characteristic is mainly undertaken by X-ray pulsar ground simulator.
X-ray pulsar can be simulated with x-ray source or visible light source in X ray ground simulator, then through light attenuation device, x-ray source or visible light source are significantly decayed, until decay to monochromatic light subflow, the signal of the X-ray pulsar that space probe detects just can be met.Therefore require that this attenuating device accurately can control the damping capacity to x-ray source or visible light source, can shield the interference of external environmental light, the photon flow after making decay conforms to the X-ray pulsar characteristics of signals of actual measurement simultaneously.
According to published patented claim, the attenuating device adopted in X-ray pulsar ground simulation system has two classes usually:
(1) to the attenuating device that x-ray source is decayed, as " a kind of ground simulation method for X-ray pulsar navigation; Authorization Notice No.: CN 101782390B ", in this patent, the material of attenuating device is generally aluminium, titanium, chromium, iron, copper and molybdenum, and the structure in its vacuum work chamber has the advantage of overdamp to X ray, but this device is due to the complex structure in its vacuum work chamber, make it regulate comparatively difficulty, be difficult to the different flow corresponding to pulsar of accurate analog;
(2) to the attenuating device that visible ray is decayed, as " a kind of pulsar signal simulator, number of patent application: 200910023383.3 " and " multi-pulse star simulator, number of patent application: 200910023707.3 ", adopt actual atmospheric envelope as attenuating device in this patented claim, the authenticity of simulation has superiority, but surround lighting is complicated and changeable, cannot regulate continuously, under stronger ambient light interference, particularly make the signal of analog pulse star fall into oblivion completely even lose, very big inconvenience is brought to Digital Signal Analysis and Processing, have a strong impact on the feasibility of X-ray pulsar ground simulation system.
Summary of the invention
The object of the invention is to the deficiency for said apparatus, propose a kind of attenuating device for pulsar ground simulation system, to shield ambient light interference, increase the adjustable extent of attenuation coefficient, improve the operability of Attenuation adjustable, realize effective control of paired pulses star analog light source decay flow.
For achieving the above object, the attenuating device of pulsar ground simulation system of the present invention, comprise: damping chamber and photon detector, is characterized in that: also comprise light-source chamber, light-source chamber sealing-plug, attenuation part, pulsar analog light source circuit board and water joint.
Described pulsar analog light source circuit board is fixed on the inwall of light-source chamber sealing-plug, and water joint is applied in light-source chamber sealing-plug, and light-source chamber sealing-plug is fixed on the light entrance end of light-source chamber; Described attenuation part is fixed in the cavity of damping chamber, and its light entrance end and light exit end are connected with the light exit end of light-source chamber and photon detector respectively.
The above-mentioned attenuating device for pulsar ground simulation system, it is characterized in that described light-source chamber sealing-plug is provided with light source fixed cylinder and through hole, light source fixed cylinder is used for fixed pulse star analog light source circuit board, the aperture of through hole 22 and the consistent size of standard water joint 7, standard water joint 7 is placed in this through hole 22, by water joint, the wire of pulsar analog light source circuit board is drawn containment portion prevent irradiation from leaking.
The above-mentioned attenuating device for pulsar ground simulation system, light-source chamber sealing-plug and light-source chamber are sealed by screw threads for fastening.
The above-mentioned attenuating device for pulsar ground simulation system, attenuation part comprises: fixture, tamponade, groove, guide rail and spring, fixture is provided with center tubular column and fixture through hole, tamponade is provided with tamponade through hole, tamponade center tubular column and guide rail via hole, groove is provided with groove through hole, this fixture through hole, tamponade through hole are identical with the aperture of groove through hole, and center line is all on same straight line.
The above-mentioned attenuating device for pulsar ground simulation system, guide rail penetrates the guide rail via hole in tamponade, makes tamponade can at slide on rails, and the two ends of guide rail are separately fixed on fixture and groove, are placed with attenuating material in groove.
The above-mentioned attenuating device for pulsar ground simulation system, fixture center tubular column is identical with the external diameter of tamponade center tubular column, the two ends of spring are separately fixed on this Liang Ge center tubular column, make the resilient force tamponade of spring that attenuating material is fastened on bottom portion of groove, realize the wringing fit of tamponade and groove.
The above-mentioned attenuating device for pulsar ground simulation system, light-source chamber is provided with light-source chamber light exit fixed head, and damping chamber is provided with damping chamber light entrance fixed head and damping chamber light exit fixed head; The center line of light-source chamber, damping chamber and attenuation part is all on same straight line.
The above-mentioned attenuating device for pulsar ground simulation system, light-source chamber fixed head and damping chamber light entrance fixed head are fastenedly connected by screw bolt and nut, and damping chamber light exit fixed head and photon detector are fastenedly connected by screw bolt and nut.
The present invention's tool compared with the attenuating device in existing pulsar ground simulation system has the following advantages:
(1) the present invention is owing to have employed fabricated structure, makes whole attenuating device be easy to assembly and disassembly, and effectively shields the interference of surround lighting;
(2) the present invention is due to the knockdown attenuating member structure adopted, and effectively can control damping capacity, improves the adjustable extent of attenuation coefficient, simplifies the operation of Attenuation adjustable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the attenuating member structure schematic diagram in Fig. 1;
Fig. 3 is the anchor structure figure in Fig. 2;
Fig. 4 is the tamponade structural drawing in Fig. 2;
Fig. 5 is the pulsar analog light source circuit board schematic diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated:
With reference to Fig. 1, the attenuating device that the present invention is used for pulsar ground simulation system comprises: light-source chamber 1, light-source chamber sealing-plug 2, damping chamber 3, attenuation part 4, photon detector 5 and pulsar analog light source circuit board 6.Wherein:
Described light-source chamber 1, its light entrance end inwall adopts female thread structure, and the side of the light exit end of light-source chamber 1 is square light-source chamber light exit fixed head 11, and the corner of light-source chamber light exit fixed head 11 is provided with screw 12.
Described light-source chamber sealing-plug 2, its surface adopts external thread structure, and inwall is provided with two centrosymmetric light source fixed cylinders 21, and in plug, side is provided with through hole 22; The female thread structure of the external thread structure on this surface and the light entrance end inwall of light-source chamber 1 matches; Light source fixed cylinder 21 adopts standard bolt structure, and is provided with the nut matched; The aperture of through hole 22 and the consistent size of standard water joint 7.
Described pulsar analog light source circuit board 6, which is provided with two fixed orifices 61, the position of two fixed orifices 61 and distance are with the position of the light source fixed cylinder 21 of two on light source sealing-plug 2 with apart from consistent, the diameter in hole slightly larger than light source fixed cylinder 21 diameter on light source sealing-plug 2, as shown in Figure 5.
Described photon detector 5, select but be not limited to PMTH-S1-R1527P type side window type photomultiplier, its side window face is square photon detector fixed head 51, and the corner of photon detector fixed head 51 is provided with screw 52.
Described water joint 7, employing be standardized water joint, its structure be easy to dismounting and assembling, centre is provided with through hole, and the wire of pulsar analog light source circuit board 6 can guide to outside by this through hole from the inner side of light-source chamber sealing-plug 2.
Described damping chamber 3, the inwall of its light entrance end adopts female thread structure, the side of the light entrance end of damping chamber 3 is provided with square damping chamber light entrance fixed head 31, the corner of damping chamber light entrance fixed head 31 is provided with screw 33, the side of the light exit end of damping chamber 3 is provided with square damping chamber light exit fixed head 32, the corner of damping chamber light exit fixed head 32 is provided with screw 34, the wherein size of damping chamber light entrance fixed head 31 and the measure-alike of light-source chamber light exit fixed head 11, screw 33 on damping chamber light entrance fixed head 31 is corresponding with the screw 12 on light-source chamber light exit fixed head 11 fixing, the size of damping chamber light exit fixed head 32 and the measure-alike of photon detector fixed head 51, the screw 34 on damping chamber light exit fixed head 31 is corresponding with the screw 52 on photon detector fixed head 51 fixing.
With reference to Fig. 2, Fig. 3 and Fig. 4, described attenuation part 4, comprise: fixture 41, tamponade 42, groove 43, article two, guide rail 44 and spring 45, wherein the diameter of fixture 41 is slightly larger than the diameter of tamponade 42 and groove 43, fixture 41 is provided with center tubular column 412 and fixture through hole 411, tamponade 42 is provided with tamponade through hole 421, tamponade center tubular column 422 and two guide rail via holes 423, groove 43 is provided with groove through hole 431, wherein fixture 41 is that centre is provided with through hole 411, surface is the cylindrical structure of external thread structure, the light exit end of this through hole 411 is cylindrical shape cylinders 412, the female thread structure of the external thread structure of fixture 41 and the light entrance end inwall of damping chamber 3 matches, tamponade 42 adopts two-double cylinder plug structure, and its ectomesoderm cylinder is stopper, and internal layer is tubular column 422, and two guide rail via holes 423 are symmetrically distributed in the circular edge of tamponade 42, the medial launder of groove 43 is circular trough, and the center of groove is provided with through hole 431, and the size of this groove and tamponade 42 matches, and can be pressed in groove 43 to make tamponade 42, article two, guide rail 44 is two long and thin metal right cylinders, distance between spring 45 length is in its natural state greater than in the bottom of fixture 41 and groove 43.The aperture of guide rail via hole 423 slightly larger than the diameter of guide rail 44, with make two guide rails 44 to penetrate after two guide rail via holes 423 tamponade 42 can on guide rail 44 Stable sliding; Article two, the two ends of guide rail 44 are vertically fixed on the edge of fixture 41 and groove 43 respectively; Attenuating material is placed, as paper, aluminium foil, by adjustment attenuating material as the thickness of paper, aluminium foil realizes regulating light decrement in groove 43; Fixture center tubular column 412 is all identical with external diameter with the internal diameter of tamponade center tubular column 422, the internal diameter of spring 45 is slightly larger than the external diameter of center tubular column, to ensure that both ends of the spring can firmly be enclosed within this Liang Ge center tubular column, fixture through hole 411, tamponade through hole 421 is identical with the aperture of groove through hole 431 and be not less than 10mm, and center line is all on same straight line, by the resilient force tamponade 42 of spring 45, attenuating material is fastened on bottom groove 43, realizes the wringing fit of tamponade 42 and groove 43.
The modular construction of whole attenuating device is closed and is:
Two light source fixed cylinders 21 on light-source chamber sealing-plug 2 penetrate two fixed orifices 61 on pulsar analog light source circuit board 6 respectively, and it is fastening to adopt nut to carry out; Water joint 7 runs through through hole 22 place be arranged on light-source chamber sealing-plug 2, the wire of pulsar analog light source circuit board 6 is drawn containment portion and prevents irradiation from leaking; The light entrance end that light-source chamber sealing-plug 2 enters light-source chamber 1 by screw thread rotation carries out fit sealing; Attenuation part 4 is entered in the cavity of damping chamber 3 by the screw thread rotation on fixture 41 surface and is fixed.Screw 12 on light-source chamber light exit fixed head 11 is fastenedly connected by the screw bolt and nut matched with the screw 33 on damping chamber light entrance fixed head 31, and the light exit end of light-source chamber 1 and the light entrance end of damping chamber 3 are fastened together; Screw 34 on damping chamber light exit fixed head 32 is fastenedly connected by the screw bolt and nut matched with the screw 52 on photon detector fixed head 51, and the light exit end of damping chamber 3 and photon detector 5 are fastened together.The center line of light-source chamber 1, damping chamber 3 and attenuation part 4 is all on same straight line.
The present embodiment is only illustrate reference of the present invention, does not form any restriction to content of the present invention.
Claims (6)
1. the attenuating device for pulsar ground simulation system, comprise: damping chamber (3) and photon detector (5), is characterized in that: also comprise light-source chamber (1), light-source chamber sealing-plug (2), attenuation part (4), pulsar analog light source circuit board (6) and water joint (7);
Described pulsar analog light source circuit board (6) is fixed on the inwall of light-source chamber sealing-plug (2), water joint (7) is applied in light-source chamber sealing-plug (2), is arranged on the light entrance end that light-source chamber sealing-plug (2) is fixed on light-source chamber (1); Described attenuation part (4) is fixed in the cavity of damping chamber (3), and the light entrance end of damping chamber (3) and light exit end are connected with the light exit end of light-source chamber (1) and photon detector (5) respectively;
Described attenuation part (4) comprising: fixture (41), tamponade (42), groove (43), guide rail (44) and spring (45), fixture (41) is provided with center tubular column (412) and fixture through hole (411), tamponade (42) is provided with tamponade through hole (421), tamponade center tubular column (422) and guide rail via hole (423), groove (43) is provided with groove through hole (431), fixture through hole (411), tamponade through hole (421) is identical with the aperture of groove through hole (431), and center line is all on same straight line, this guide rail (44) penetrates the guide rail via hole (423) in tamponade (42), tamponade (42) above can be slided at guide rail (44), the two ends of guide rail (44) are separately fixed on fixture (41) and groove (43), and groove is placed with attenuating material in (43).
2. the attenuating device for pulsar ground simulation system according to claim 1, it is characterized in that light-source chamber sealing-plug (2) is provided with light source fixed cylinder (21) and through hole (22), light source fixed cylinder (21) is for fixed pulse star analog light source circuit board (6), the aperture of through hole (22) and the consistent size of water joint (7), water joint (7) is placed in this through hole (22), by water joint (7), the wire of pulsar analog light source circuit board (6) is drawn containment portion prevent irradiation from leaking.
3. the attenuating device for pulsar ground simulation system according to claim 1, is characterized in that light-source chamber sealing-plug (2) and light-source chamber (1) are sealed by screw threads for fastening.
4. the attenuating device for pulsar ground simulation system according to claim 1, it is characterized in that fixture center tubular column (412) is identical with the external diameter at tamponade center tubular column (422), the two ends of spring (45) are separately fixed on this Liang Ge center tubular column, make the resilient force tamponade (42) of spring (45) that attenuating material is fastened on groove (43) bottom, realize the wringing fit of tamponade (42) and groove (43).
5. the attenuating device for pulsar ground simulation system according to claim 1, it is characterized in that light-source chamber (1) is provided with light-source chamber light exit fixed head (11), damping chamber (3) is provided with damping chamber light entrance fixed head (31) and damping chamber light exit fixed head (32); The center line of light-source chamber (1), damping chamber (3) and attenuation part (4) is all on same straight line.
6. the attenuating device for pulsar ground simulation system according to claim 5, it is characterized in that light-source chamber light exit fixed head (11) and damping chamber light entrance fixed head (31) are fastenedly connected by screw bolt and nut, damping chamber light exit fixed head (32) and photon detector (5) are fastenedly connected by screw bolt and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210245529.0A CN102778231B (en) | 2012-07-16 | 2012-07-16 | Attenuation device for pulsar ground simulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210245529.0A CN102778231B (en) | 2012-07-16 | 2012-07-16 | Attenuation device for pulsar ground simulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102778231A CN102778231A (en) | 2012-11-14 |
| CN102778231B true CN102778231B (en) | 2015-05-27 |
Family
ID=47123230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210245529.0A Active CN102778231B (en) | 2012-07-16 | 2012-07-16 | Attenuation device for pulsar ground simulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102778231B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835544B (en) * | 2015-03-18 | 2017-07-07 | 北京控制工程研究所 | A kind of space X ray shielding device for pulsar navigation |
| CN104932002A (en) * | 2015-04-03 | 2015-09-23 | 北京空间机电研究所 | X-ray detection system performance test system |
| CN109084805B (en) * | 2018-09-21 | 2022-03-11 | 中国人民解放军61540部队 | X-ray pulsar navigation terminal test system and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603831A (en) * | 2009-07-20 | 2009-12-16 | 西安电子科技大学 | A kind of pulsar signal simulator |
| CN101644580A (en) * | 2009-08-26 | 2010-02-10 | 西安电子科技大学 | Multi-pulse star signal simulator |
| CN101782390A (en) * | 2010-04-07 | 2010-07-21 | 中国科学院西安光学精密机械研究所 | Ground simulation method and device for X-ray pulsar navigation |
-
2012
- 2012-07-16 CN CN201210245529.0A patent/CN102778231B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603831A (en) * | 2009-07-20 | 2009-12-16 | 西安电子科技大学 | A kind of pulsar signal simulator |
| CN101644580A (en) * | 2009-08-26 | 2010-02-10 | 西安电子科技大学 | Multi-pulse star signal simulator |
| CN101782390A (en) * | 2010-04-07 | 2010-07-21 | 中国科学院西安光学精密机械研究所 | Ground simulation method and device for X-ray pulsar navigation |
Non-Patent Citations (1)
| Title |
|---|
| 高稳定度X射线脉冲星信号模拟;孙海峰等;《物理学报》;20131231;第62卷(第10期);109701-1－109701-11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102778231A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3145046C2 (en) | Method and device for generating a representation of the spatial distribution of a liquid flow within a hollow body structure | |
| CN102778231B (en) | Attenuation device for pulsar ground simulation system | |
| EP2925225B1 (en) | Length measuring device | |
| CN109471152A (en) | The collimator apparatus and its measuring system of gamma rays flux can be automatically adjusted | |
| CN106376165B (en) | A kind of Portable X-ray irradiation unit for field calibration | |
| CN108152846A (en) | A kind of digitalization radiation inert gas133Xe activity coincidence measurement devices | |
| CN109406548A (en) | A kind of neutron detection device for Water quality detection | |
| CN103245680A (en) | Fast neutron imaging method and system based on time-of-flight method | |
| CN103575295B (en) | A kind of inertial element magnetic-field sensitivity measuring system | |
| CN102841366B (en) | Method and system for detecting discrimination threshold of pulse-amplitude discriminator | |
| An et al. | The performance of a prototype array of water Cherenkov detectors for the LHAASO project | |
| CN109459785B (en) | Uniform thermal neutron field radiation test device based on array neutron source | |
| JP2008180700A (en) | Moisture detection method, moisture detector, and pipe inspection device | |
| CN206061263U (en) | A kind of Portable X-ray irradiation unit for field calibration | |
| DE102012220468B3 (en) | length measuring instrument | |
| CN203606501U (en) | [Gamma] ray collimator and detection system thereof | |
| CN204086174U (en) | A kind of light guide test device | |
| CN102967609B (en) | Oil deposit percolation experimental model for measuring multi-phase fluid saturation distribution and measuring method | |
| CN203483440U (en) | Low-noise bone mineral density measuring instrument | |
| CN209182267U (en) | A kind of neutron detection device for Water quality detection | |
| CN109696368B (en) | Asphalt triaxial fatigue testing machine | |
| CN207423842U (en) | A kind of novel human-body bone lead density detector | |
| CN202486330U (en) | Well logging exploring pipe | |
| CN207662292U (en) | Measuring tool for detecting precision of door and window frames | |
| RU71003U1 (en) | URANIUM ORE LOGGING DEVICE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |