CN103076621A - Folding array satellite-borne X-ray detector - Google Patents
Folding array satellite-borne X-ray detector Download PDFInfo
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- CN103076621A CN103076621A CN2012105895451A CN201210589545A CN103076621A CN 103076621 A CN103076621 A CN 103076621A CN 2012105895451 A CN2012105895451 A CN 2012105895451A CN 201210589545 A CN201210589545 A CN 201210589545A CN 103076621 A CN103076621 A CN 103076621A
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Abstract
The invention belongs to the field of spacecraft autonomous navigation technology, and particularly relates to a folding array satellite-borne X-ray detector. According to the technical scheme, vacuum gate array mechanisms (2) are connected with a photon detection head body (1), positioned above a horizontal limiting device (7) and controlled by electric hinges to be opened and closed, when the vacuum gate array mechanisms (2) are opened, the vacuum gate array mechanisms (2) are limited by the horizontal limiting device (7), and are level to the upper surface of the photon detection head body (1); when the vacuum gate array mechanisms (2) are closed, four vacuum gate array mechanisms (2) are buckled on the upper surface of the photon detection head body (1), and four closed cavities which are communicated with one another are formed between the four vacuum gate array mechanisms (2) and the upper surface of the photon detection head body (1); and a vacuum valve (3), a high-voltage electric connector (4) and an electric signal connector (6) are arranged on the photon detection head body (1). By utilizing the folding array satellite-borne X-ray detector, the detection area is doubled, the signal-noise ratio of the received signals is improved, and the integral time can be shortened.
Description
Technical field
The invention belongs to the Spacecraft Autonomous Navigation Technology field, be specifically related to a kind of spaceborne X-ray detector.
Background technology
The emittance of X ray pulsar mainly concentrates on the grenz ray energy section of 0.1～10keV, its radiation intensity is very faint, general magnitude at 100～10-5ph/cm2/s, in order to survey faint like this x-ray photon signal, just require detector to make the large tracts of land array, thereby in limited observation time, strengthen the x-ray photon efficient of collecting and the signal to noise ratio (S/N ratio) that improves the pulsar radiation signal.Simultaneously, owing to the strict constraint of satellite platform to detector quality of loads and envelope, thereby require Satellite-borne Detector to have characteristic lightweight, that envelope size is little and reliability is strong.Therefore the spaceborne X-ray detector of developing large tracts of land, lightweight, little envelope and high reliability is the core key technology of X ray pulsar navigation.But, not yet retrieve complete design solution or the special discussion of relevant spaceborne X-ray detector at present.
Summary of the invention
The objective of the invention is: a kind of spaceborne X-ray detector is provided, with technical requirements such as realization large tracts of land, lightweight, little envelope and high reliability, thereby satisfies the Spacecraft Autonomous Navigation application demand of utilizing the X ray pulsar.
Technical scheme of the present invention is: the spaceborne X-ray detector of a kind of collapsible array type, and it comprises: photon detection head body, Vacuum door array mechanism, vacuum valve, high-voltage electric connector, probe unit and signal electric connector;
Photon detection head body is the octagon column structure, its medianly zygomorphic connector that is provided with, and the non-adjacent sidewall of photon detection head body is provided with Compact Mounts, and Compact Mounts has the projection that can outwards eject, and Compact Mounts has 4;
The Vacuum door array mechanism is the square structure that removes an angle, its hypotenuse length equates with the length of side of photon detection head body octagon, right-angle side length is 1/2nd of photon detection head body octagon length, and the Vacuum door array mechanism is provided with O-ring seal; The quantity of Vacuum door array mechanism is 4;
Probe unit is rectangle structure, and its quantity is a plurality of, uniform embedding photon detection head body and the upper surface of Vacuum door array mechanism;
The Vacuum door array mechanism is connected with photon detection head body by the automatically controlled hinge that is installed on its hypotenuse middle part, 4 Vacuum door array mechanisms are installed on the top of Compact Mounts, controlling it by automatically controlled hinge opens and closure, when the Vacuum door array mechanism is opened, spacing to it by Compact Mounts, concordant with the upper surface of photon detection head body; When the Vacuum door array mechanism was closed, 4 Vacuum door array mechanisms were fastened on the upper surface of photon detection head body, and formed 4 airtight chamber between the upper surface of photon detection head body, were interconnected between 4 airtight chamber; Vacuum valve is installed on the sidewall of photon detection head body, and high-voltage electric connector and signal electric connector are installed on the connector place of photon detection head body.
The invention has the beneficial effects as follows: 1. the present invention is owing to adopted the array type design, simultaneously arrange probe unit in detector body and Vacuum door array, so that the detection area of detector doubles, has the signal to noise ratio (S/N ratio) that improves acknowledge(ment) signal, the advantage that reduces integral time.
2. the present invention is that detector is cylindric octagonal _type layout at rounding state owing to adopted collapsible design, compare with rectangular design so that detector when useful detection area is identical, it is less to draw enveloping surface at the emission state detector; Be petal design in deployed condition simultaneously, so that duty detector revolution enveloping surface is less, mass distribution is even, and turntable bears that moment is little to be easy to accurate operation.
3. the present invention is owing to adopted the Vacuum door Array Design, follow the monomer-type Vacuum door to compare and have the vacuum seal that is easy to realize detector, improve the anti shock and vibration ability of Vacuum door, reduce to launch the revolution enveloping surface of rear detector, improve the detector reliability etc. advantage.
Description of drawings
Fig. 1 is working state structure synoptic diagram of the present invention;
Fig. 2 is starting state structural representation of the present invention among the embodiment;
Fig. 3 is structural representation during emission state of the present invention among the embodiment;
Wherein, 1-photon detection head body, 2-Vacuum door array mechanism, 3-vacuum valve, 4-high-voltage electric connector, 5-probe unit, 6-signal electric connector, 7-Compact Mounts, 8-two dimension turntable, 9-general controller.
Embodiment
Referring to accompanying drawing 1, the spaceborne X-ray detector of a kind of collapsible array type, it comprises: photon detection head body 1, Vacuum door array mechanism 2, vacuum valve 3, high-voltage electric connector 4, probe unit 5, signal electric connector 6, two-dimentional turntable 8 and general controller 9;
Photon detection head body 1 is the octagon column structure, its medianly zygomorphic connector that is provided with, photon detection head body 1 non-adjacent sidewall is provided with Compact Mounts 7, and Compact Mounts 7 has the projection that can outwards eject, and Compact Mounts 7 has 4;
Vacuum door array mechanism 2 is for removing the square structure at an angle, its hypotenuse length equates with the length of side of photon detection head body 1 octagon, right-angle side length is 1/2nd of photon detection head body 1 octagon length, and Vacuum door array mechanism 2 is provided with O-ring seal; The quantity of Vacuum door array mechanism 2 is 4;
Probe unit 5 is rectangle structure, and its quantity is a plurality of, and the uniform upper surface that is embedded in photon detection head body 1 and Vacuum door array mechanism 2 is coated with filter coating on the surface of probe unit 5;
Two dimension turntable 8 comprises: base plate, support and limited block; Being installed on the base plate of support vertical is provided with rotating shaft along support same level line direction; Limited block is triangular structure, is provided with horizontal groove on its inclined-plane; Limited block is installed on the base plate of support inboard;
Vacuum door array mechanism 2 is connected with photon detection head body 1 by the automatically controlled hinge that is installed on its hypotenuse middle part, 4 Vacuum door array mechanisms 2 are installed on the top of Compact Mounts 7, controlling it by automatically controlled hinge opens and closure, when Vacuum door array mechanism 2 is opened, spacing to it by Compact Mounts 7, concordant with the upper surface of photon detection head body 1; When Vacuum door array mechanism 2 closure, 4 Vacuum door array mechanisms 2 are fastened on the upper surface of photon detection head body 1, and form 4 airtight chamber between the upper surface of photon detection head body 1, are interconnected between 4 airtight chamber; Vacuum valve 3 is installed on the sidewall of photon detection head body 1, and high-voltage electric connector 4 and signal electric connector 6 are installed on the connector place of photon detection head body 1;
During the spaceborne X-ray detector off working state of collapsible array type, the projection of Compact Mounts 7 outwards ejects and snaps in the groove of limited block, the upper and lower surface of photon detection head body 1 and the base plate of two-dimentional turntable 8 are vertical relation, and Vacuum door array mechanism 2 is closure state;
During the spaceborne X-ray detector duty of collapsible array type, the projection of Compact Mounts 7 is inwardly regained, and the upper and lower surface of photon detection head body 1 and the base plate of two-dimentional turntable 8 are parallel relation, and Vacuum door array mechanism 2 is open mode.
Referring to accompanying drawing 2,3, the spaceborne X-ray detector of a kind of collapsible array type, its course of work is:
A. before the spacecraft platform emission, 4 Vacuum door array mechanisms 2 are upwards formed airtight chamber between the upper surface of folding and photon detection head body 1; Photon detection head body 1 is vertical relation with the upper and lower surface of photon detection head body 1 and the base plate of two-dimentional turntable 8, utilizes general controller 9 to power on;
B. vacuumize by 3 pairs of airtight chamber of vacuum valve, purpose is the requirement of storing under vacuum in order to satisfy probe unit 5, and the protection filter coating at launching phase not by impact failure, and then guarantee normal operation after the present invention enters under the vacuum of space environment;
C. after the spacecraft platform was emitted to space, general controller 9 was opened vacuum valve 3, so that reach Vacuum Balance with extraneous space environment in the confined chamber;
D. under the instruction of general controller 9, two-dimentional turntable 8 will and with photon detection head body 1 half-twist;
E. when the base plate of the upper and lower surface of photon detection head body 1 and two-dimentional turntable 8 is parallel relation, be rotated in place, general controller 9 is sent the deployed condition instruction to the automatically controlled hinge of Vacuum door array mechanism 2, under the effect of automatically controlled hinge, Vacuum door array mechanism 2 is outwards opened, and by Compact Mounts 7 it being carried out spacingly, Vacuum door array mechanism 2 is concordant with the upper surface of photon detection head body 1.
F. under the control of general controller 9, detector is imported high pressure, and each components and parts of detector inside are carried out self check, enter duty after the self check success, carry out specific pulse star signal capture.
Claims (5)
1. spaceborne X-ray detector of collapsible array type, it is characterized in that it comprises: photon detection head body (1), Vacuum door array mechanism (2), vacuum valve (3), high-voltage electric connector (4), probe unit (5) and signal electric connector (6);
Photon detection head body (1) is the octagon column structure, its medianly zygomorphic connector that is provided with, the non-adjacent sidewall of photon detection head body (1) is provided with Compact Mounts (7), Compact Mounts (7) has the projection that can outwards eject, and Compact Mounts (7) has 4;
Vacuum door array mechanism (2) is for removing the square structure at an angle, its hypotenuse length equates with the length of side of photon detection head body (1) octagon, right-angle side length is 1/2nd of photon detection head body (1) octagon length, and Vacuum door array mechanism (2) is provided with O-ring seal; The quantity of Vacuum door array mechanism (2) is 4;
Probe unit (5) is rectangle structure, and its quantity is a plurality of, uniform embedding photon detection head bodies (1) and the upper surface of Vacuum door array mechanism (2);
Vacuum door array mechanism (2) is connected with photon detection head body (1) by the automatically controlled hinge that is installed on its hypotenuse middle part, 4 Vacuum door array mechanisms (2) are installed on the top of Compact Mounts (7), controlling it by automatically controlled hinge opens and closure, when Vacuum door array mechanism (2) when opening, spacing to it by Compact Mounts (7), concordant with the upper surface of photon detection head body (1); When Vacuum door array mechanism (2) was closed, 4 Vacuum door array mechanisms (2) were fastened on the upper surface of photon detection head body (1), and formed 4 airtight chamber between the upper surface of photon detection head body (1), were interconnected between 4 airtight chamber; Vacuum valve (3) is installed on the sidewall of photon detection head body (1), and high-voltage electric connector (4) and signal electric connector (6) are installed on the connector place of photon detection head body (1).
2. the spaceborne X-ray detector of a kind of collapsible array type as claimed in claim 1 is characterized in that it also comprises a two-dimentional turntable (8); Two dimension turntable (8) comprising: base plate, support and limited block; Being installed on the base plate of support vertical is provided with rotating shaft along support same level line direction; Limited block is triangular structure, is provided with groove at its middle part, inclined-plane; Limited block is installed on the base plate of support inboard;
Rotating shaft on the connector access support of photon detection head body (1) both sides;
During the spaceborne X-ray detector off working state of collapsible array type, the projection of Compact Mounts (7) outwards ejects and snaps in the groove of limited block, the base plate of the upper and lower surface of photon detection head body (1) and two-dimentional turntable (8) is vertical relation, and Vacuum door array mechanism (2) is closure state;
During the spaceborne X-ray detector duty of collapsible array type, the projection of Compact Mounts (7) is inwardly regained, the base plate of the upper and lower surface of photon detection head body (1) and two-dimentional turntable (8) is parallel relation, and Vacuum door array mechanism (2) is open mode.
3. the spaceborne X-ray detector of a kind of collapsible array type as claimed in claim 1 or 2 is characterized in that, is coated with filter coating on the surface of probe unit (5).
4. the spaceborne X-ray detector of a kind of collapsible array type as claimed in claim 2 is characterized in that it also comprises a general controller (9); General controller (9) comprising: comprise that power panel, I/O plate, control mainboard, control slave board, electronics reads 5 feature boards of plate; Wherein, the power supply mainboard, for high-voltage electric connector (4) provides power supply, control adds, cuts off the power supply; The control mainboard receives the direct instruction that satellite platform provides, and controls adding, cutting off the power supply, and opens vacuum valve (3), gathers airtight chamber's state, judges whether airtight chamber opens; Gather the state of the spaceborne X-ray detector of collapsible array type, form direct remote measurement, the lower satellite platform of passing to; Electronics is read the pulsed current signal that plate mainly is responsible for gathering probe unit (5), carries out photon conversion time of arrival, pulse profile reconstruct and storage, selects a good opportunity and passes to satellite platform by under the bus.
5. the spaceborne X-ray detector of a kind of collapsible array type as claimed in claim 4 is characterized in that its course of work is:
A. before the spacecraft platform emission, 4 Vacuum door array mechanisms (2) are upwards formed airtight chamber between the upper surface of folding and photon detection head body (1); Photon detection head body (1) is vertical relation with the upper and lower surface of photon detection head body (1) and the base plate of two-dimentional turntable (8), utilizes general controller (9) to power on;
B. by vacuum valve (3) airtight chamber is vacuumized;
C. after the spacecraft platform was emitted to space, general controller (9) was opened vacuum valve (3), so that reach Vacuum Balance with extraneous space environment in the confined chamber;
D. under the instruction of general controller (9), two-dimentional turntable (8) will and with photon detection head body (1) half-twist;
E. when the base plate of the upper and lower surface of photon detection head body (1) and two-dimentional turntable (8) is parallel relation, be rotated in place, general controller (9) is sent the deployed condition instruction to the automatically controlled hinge of Vacuum door array mechanism (2), under the effect of automatically controlled hinge, Vacuum door array mechanism (2) is outwards opened, and by Compact Mounts (7) it being carried out spacingly, Vacuum door array mechanism (2) is concordant with the upper surface of photon detection head body (1).
F. under the control of general controller (9), detector is imported high pressure, and each components and parts of detector inside are carried out self check, enter duty after the self check success, carry out specific pulse star signal capture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589545.1A CN103076621B (en) | 2012-12-29 | 2012-12-29 | Folding array satellite-borne X-ray detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589545.1A CN103076621B (en) | 2012-12-29 | 2012-12-29 | Folding array satellite-borne X-ray detector |
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| Publication Number | Publication Date |
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| CN103076621A true CN103076621A (en) | 2013-05-01 |
| CN103076621B CN103076621B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210589545.1A Expired - Fee Related CN103076621B (en) | 2012-12-29 | 2012-12-29 | Folding array satellite-borne X-ray detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019559A (en) * | 2021-11-10 | 2022-02-08 | 北京微纳星空科技有限公司 | X-ray telescope mechanism and satellite |
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| CN114019559A (en) * | 2021-11-10 | 2022-02-08 | 北京微纳星空科技有限公司 | X-ray telescope mechanism and satellite |
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