CN209991994U - Star sensor static simulator device - Google Patents
Star sensor static simulator device Download PDFInfo
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- CN209991994U CN209991994U CN201922177895.7U CN201922177895U CN209991994U CN 209991994 U CN209991994 U CN 209991994U CN 201922177895 U CN201922177895 U CN 201922177895U CN 209991994 U CN209991994 U CN 209991994U
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Abstract
The utility model relates to a star sensor simulation field provides star sensor static state simulator device, and it includes the simulator shell and follows the light source, star worn-out fur and the collimating objective that the axial of simulator shell set gradually, star worn-out fur face to the shading rete has been plated to collimating objective's one side, and the center of star worn-out fur leaves first light trap and centers on a plurality of second light traps of first light trap outlying, the simulator shell is close to collimating objective's one end is established to the star sensor installation end, the star sensor installation end be equipped with the spacing face of star sensor contact. The utility model discloses can simulate in the sky true star map, supply star sensor to carry out functional test such as star map discernment and star point tracking.
Description
Technical Field
The utility model relates to a star sensor simulation technology field especially relates to a star sensor static state simulator device.
Background
The star sensor is a high-precision space attitude measuring device which takes fixed stars as a reference system and starry sky as a working object, and provides accurate space orientation and reference for aerospace crafts such as satellites, intercontinental strategic missiles, space shuttles and the like by detecting and resolving the fixed stars at different positions on an celestial sphere, and the star sensor has autonomous navigation capability like an inertial gyroscope and has important application value.
The star sensor needs a static simulator on the ground to simulate the real star map in the sky, so that the star sensor can perform the function tests such as star map identification, star point tracking and the like.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
The utility model aims at providing a star sensor static state simulator device to true star atlas in the simulation sky supplies star sensor to carry out functional test such as star atlas discernment and star point tracking.
(II) technical scheme
In order to solve the technical problem, the embodiment of the utility model provides a star sensor static state simulator device, it includes the simulator shell and follows the light source, star light board and the collimating objective that the axial of simulator shell set gradually, star light board face to the shading rete has been plated to collimating objective's one side, and first light trap is left at the center of star light board and centers on a plurality of second light traps of first light trap outlying, the simulator shell is close to collimating objective's one end is established to the star sensor installation end, the star sensor installation end be equipped with the spacing face of star sensor contact.
In a specific embodiment of the present invention, the star plate is located on a focal plane of the collimator objective.
In one embodiment of the present invention, the light source is supported by the first fixing bracket inside the simulator housing, and the star light plate is supported by the second fixing bracket inside the simulator housing.
In one embodiment of the present invention, the first fixing support and the second fixing support are both rod-shaped, and the first fixing support and the second fixing support are connected to the bottom inside the simulator casing through fasteners.
In a particular embodiment of the present invention, the inner wall of the simulator housing is provided with a positioning groove, and the outer edge of the collimator lens is mounted in the positioning groove.
In one embodiment of the present invention, the simulator housing includes a first sleeve and a second sleeve communicated with the first sleeve, the inner diameter of the second sleeve is larger than the inner diameter of the first sleeve, the junction of the first sleeve and the second sleeve forms the limiting surface, and the limiting surface is used for contacting with the upper end surface of the star sensor light shield;
the light source, the star plate and the collimating objective are sequentially arranged in the first sleeve.
In one embodiment of the present invention, the circumferential interval of the cylinder wall of the second sleeve is provided with a plurality of locking connectors screwed into the second sleeve from outside to inside for fixing the position of the star sensor light shield.
In one embodiment of the present invention, the end of the locking connector located in the second sleeve is provided with an anti-static elastic pad.
In one embodiment of the present invention, the anti-static elastic pad is an anti-static rubber pad, and the locking connection member is a locking screw.
In one embodiment of the present invention, the first sleeve and the second sleeve are integrally formed and form a stepped tube shape, and the step surface between the first sleeve and the second sleeve forms the limiting surface.
(III) advantageous effects
Compared with the prior art, the utility model has the advantages of it is following:
the embodiment of the utility model provides a pair of star sensor static state simulator device adopts and sets gradually light source, star light board and collimating objective along the axial of simulator shell, star light board face to the shading rete has been plated to collimating objective's one side, and the center of star light board leaves first light trap and centers on a plurality of second light traps of first light trap outlying, the simulator shell is close to collimating objective's one end is established to the star sensor installation end, the star sensor installation end be equipped with the spacing face of star sensor contact is connected with the star sensor lens hood through the simulator shell is direct, easy operation, convenient and practical. The simulator can simulate the real star map in the sky in a laboratory environment, and the star sensor can perform function tests such as star map identification, star point tracking and the like.
Drawings
Fig. 1 is an axial cross-sectional view of a star sensor static simulator device according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a star sensor static simulator device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a front view of the star light plate in the embodiment of the present invention.
In the figure: 1: a power source; 2: a light emitting diode; 3: a starlight board; 31: a first light-transmitting hole; 32: a second light-transmitting hole; 4: a collimating objective lens; 5: a first fixed bracket; 6: a second fixed bracket; 7: a positioning groove; 8: a simulator housing; 9: a limiting surface; 10: locking the screw; 11: antistatic rubber pad.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In the description of the present invention, the terms "plurality", and "plural" mean two or more unless otherwise specified.
As shown in fig. 1-3, an embodiment of the present invention provides a star sensor static simulator device, which includes a simulator housing 8, and a light source, a star light plate 3 and a collimator lens 4 sequentially arranged along an axial direction of the simulator housing 8, as shown in fig. 4, one side of the star light plate 3 facing the collimator lens 4 is plated with a shading film layer, and a first light hole 31 and a plurality of second light holes 32 surrounding the first light hole 31 are left at a center of the star light plate 3, and the shading film layer is used for covering a plate surface of the star light plate 3 except the first light hole 31 and the second light holes 32; the first light hole 31 and the second light hole 32 form star points when light passes through the light hole, the earth and a fixed star can be simulated, the first light hole 31 simulates the earth, the second light hole 32 simulates the fixed star, the light penetrates through the first light hole 31 and the second light hole 32 and is emitted out through the collimating objective 4, one end, close to the collimating objective 4, of the simulator shell 8 is set to be a star sensor mounting end, the star sensor mounting end is provided with a limiting surface 9 in contact with the star sensor, the star sensor is mounted at the star sensor mounting end, parallel light emitted from the collimating objective 4 irradiates on the star sensor, and therefore the space of the star can be simulated in a laboratory.
The simulator shell 8 of the embodiment is directly connected with the star sensor light shield, and is simple to operate, convenient and practical. The static simulator device adopts the modes of ground test and star point simulation, solves the problems of detection and calibration of the star sensor before the last day, and can simulate a star map of a fixed sky area in a laboratory environment, including star point brightness, inter-star angular distance and a star spectrum section. The method has an important effect on the development of the star sensor and also has an important significance on the determination of the on-orbit attitude of the spacecraft.
The present embodiment can acquire a clear star map by placing the star plate 3 at the focal plane of the collimation system.
The size, number and spacing of the first light holes 31 and the second light holes 32 may be determined according to the stars of the measured sky area.
In a specific embodiment of the present invention, the light source can be a light emitting diode 2, the light emitting diode is connected to a power source 1, and the power source 1 supplies power to the light emitting diode 2.
In a specific embodiment of the utility model, in order to make things convenient for the fixed of light source, the light source supports through first fixed bolster 5 in simulator shell 8, for the fixed of convenience star light board 3, star light board 3 supports through second fixed bolster 6 in simulator shell 8, specifically, first fixed bolster 5 and second fixed bolster 6 all are shaft-like, first fixed bolster with the bottom in simulator shell 8 all can be fixed through fasteners such as bolts to the second fixed bolster.
The utility model discloses a specific embodiment, simulator housing 8's inner wall is equipped with positioning groove 7, collimator lens 4's outward flange is installed in positioning groove 7, collimator lens 4 is convex lens, and its transversal ellipse that personally submits, for adapting to collimator lens 4's shape, positioning groove 7 can set up to the arcwall face with collimator lens 4's outward flange assorted.
In a specific embodiment of the present invention, the star light plate 3 is made of optical glass, and can be made of K9 glass material, and the glass product made of K9 glass material is glittering and translucent and is used in the fields of optical coating and the like.
In a specific embodiment of the present invention, the simulator housing 8 includes a first sleeve and a second sleeve communicated with the first sleeve, the inner diameter of the second sleeve is larger than the inner diameter of the first sleeve, forming a stepped structure, the junction of the first sleeve and the second sleeve forms the limiting surface 9, the limiting surface 9 is used for contacting with the upper end face of the star sensor light shield. The limiting surface 9 is formed to facilitate the installation of the star sensor.
Specifically, the light source, the starlight plate 3 and the collimator objective 4 are sequentially arranged in the first sleeve, and the collimator objective 4 is close to the joint of the first sleeve and the second sleeve.
In one embodiment of the present invention, the cylinder wall of the second sleeve is circumferentially spaced from the outside to the inside and is provided with a plurality of locking connectors screwed into the second sleeve for fixing the position of the star sensor light shield, after the upper end surface of the star sensor light shield is stably butted with the spacing surface 9, the star sensor is fixed in the second sleeve by screwing the locking connectors, and the fixed connection between the star sensor and the star sensor static simulator device is realized.
The number of the locking connectors is not limited, and preferably, one locking connector is respectively arranged at both radial ends of the second sleeve.
In a specific embodiment of the present invention, an anti-static elastic pad is disposed at one end of the locking connector located in the second sleeve, so that on one hand, the connection between the locking connector and the star sensor is flexible, and the locking connector is prevented from colliding with the outer wall of the star sensor; on the other hand, through the anti-static treatment, the influence of static electricity on other precise components on the star sensor can be avoided.
In a specific embodiment of the present invention, the anti-static elastic pad is an anti-static rubber pad 11, and certainly can also be an anti-static foam board, and the locking connection member can be a locking screw 10, a locking bolt, etc.
In one embodiment of the utility model, the first sleeve and the second sleeve are integrated into one piece to form the ladder tube-shape, the step face between the first sleeve and the second sleeve forms spacing face, and it is convenient to make, and the steadiness is good, makes things convenient for star sensor to install.
The utility model discloses an operation process does: the static simulator device is sleeved on the star sensor light shield, the end face of the star sensor is overlapped with the limiting face 9 of the static simulator device, then the locking screw is screwed, and the static simulator device is installed on the star sensor. When the light source switch is turned on, the light emitted by the light source uniformly irradiates the starlight plate 3, and the starlight plate 3 is placed on the focal plane of the collimating lens. The star light plate 3 adopts high-quality optical glass as a substrate material, one surface facing the collimator objective 4 is coated with a shading film layer, a plurality of round holes are engraved on the star light plate 3 before coating to serve as light transmission points, and other areas on the star light plate 3 are shielded by the shading film layer. The light rays are emitted in parallel after passing through the collimating lens, and the star light plate 3 displays a star map in a field range corresponding to the star sensor. The static simulator device is mainly used for detecting and calibrating the star sensor in a laboratory environment, simulating a star map of a fixed sky area, including simulation of star point brightness, inter-star angular distance and a star spectrum section, and providing a recognition target for the star sensor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The star sensor static simulator device is characterized by comprising a simulator shell, a light source, a star light plate and a collimating objective lens, wherein the light source, the star light plate and the collimating objective lens are sequentially arranged along the axial direction of the simulator shell, one surface of the star light plate, which faces the collimating objective lens, is plated with a shading film layer, a first light hole and a plurality of second light holes surrounding the periphery of the first light hole are reserved in the center of the star light plate, one end, close to the collimating objective lens, of the simulator shell is arranged to be a star sensor mounting end, and the star sensor mounting end is provided with a limiting surface in contact with a star sensor.
2. The star sensor static simulator device according to claim 1, wherein the star plate is located on the focal plane of the collimator objective.
3. The star sensor static simulator device according to claim 1, wherein the light source is supported in the simulator housing by a first fixed support, and the star plate is supported in the simulator housing by a second fixed support.
4. The star sensor static simulator device according to claim 3, wherein the first fixed support and the second fixed support are each in the shape of a rod, and the first fixed support and the second fixed support are each connected to the bottom inside the simulator housing by a fastener.
5. The star sensor static simulator device according to claim 1, wherein the inner wall of the simulator housing is provided with a positioning groove in which the outer edge of the collimator objective is fitted.
6. The star sensor static simulator device according to claim 1, wherein the simulator housing comprises a first sleeve and a second sleeve communicated with the first sleeve, the inner diameter of the second sleeve is larger than that of the first sleeve, the junction of the first sleeve and the second sleeve forms the limiting surface, and the limiting surface is used for contacting with the upper end surface of a star sensor light shield;
the light source, the star plate and the collimating objective are sequentially arranged in the first sleeve.
7. The star sensor static simulator device according to claim 6, wherein the second sleeve has a plurality of locking connectors spaced circumferentially around the wall of the second sleeve for screwing into the second sleeve from outside to inside to fix the position of the star sensor light shield.
8. The star sensor static simulator device according to claim 7, wherein an anti-static elastic pad is provided at one end of the locking connector located in the second sleeve.
9. The star sensor static simulator device according to claim 8, wherein the anti-static elastic pad is an anti-static rubber pad, and the locking connection member is a locking screw.
10. The star sensor static simulator device according to claim 6, wherein the first sleeve and the second sleeve are integrally formed and formed in a stepped cylindrical shape, and the step surface between the first sleeve and the second sleeve forms the stopper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922177895.7U CN209991994U (en) | 2019-12-09 | 2019-12-09 | Star sensor static simulator device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922177895.7U CN209991994U (en) | 2019-12-09 | 2019-12-09 | Star sensor static simulator device |
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| CN209991994U true CN209991994U (en) | 2020-01-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111523175A (en) * | 2020-04-13 | 2020-08-11 | 清华大学 | Pop-up star sensor light shield and design method thereof |
| CN114323074A (en) * | 2021-12-29 | 2022-04-12 | 中国科学院西安光学精密机械研究所 | Large-view-field wide-spectrum high-precision static star chart simulator |
-
2019
- 2019-12-09 CN CN201922177895.7U patent/CN209991994U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111523175A (en) * | 2020-04-13 | 2020-08-11 | 清华大学 | Pop-up star sensor light shield and design method thereof |
| CN114323074A (en) * | 2021-12-29 | 2022-04-12 | 中国科学院西安光学精密机械研究所 | Large-view-field wide-spectrum high-precision static star chart simulator |
| CN114323074B (en) * | 2021-12-29 | 2023-12-08 | 中国科学院西安光学精密机械研究所 | Large-view-field wide-spectrum high-precision static star chart simulator |
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