CN111175781A - Multi-angle multispectral spaceborne ionosphere detection device - Google Patents
Multi-angle multispectral spaceborne ionosphere detection device Download PDFInfo
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- CN111175781A CN111175781A CN202010046178.5A CN202010046178A CN111175781A CN 111175781 A CN111175781 A CN 111175781A CN 202010046178 A CN202010046178 A CN 202010046178A CN 111175781 A CN111175781 A CN 111175781A
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- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
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Abstract
The invention belongs to the technical field of space optical detection and satellite-borne detection devices, and particularly relates to a multi-angle multi-spectral satellite-borne detection ionosphere device, which comprises: the device comprises a square shell (3), a multi-angle detection opening (30), a multi-angle detection channel (1), a multi-spectrum detection opening (31) and a multi-spectrum detection channel (2); the top of the square shell (3) is provided with a multi-angle detection opening (30) and a multi-spectrum detection opening (31), and the multi-angle detection opening (30) and the multi-spectrum detection opening (31) form a multi-angle detection channel (1) and a multi-spectrum detection channel (2) through a partition plate (32) which is arranged in the square shell and between the multi-angle detection opening (30) and the multi-spectrum detection opening (31); a multi-angle detection channel (1) is arranged below the multi-angle detection opening (30), and a multi-spectrum detection channel (2) is arranged below the multi-spectrum detection opening (31).
Description
Technical Field
The invention belongs to the technical field of space optical detection and satellite-borne detection devices, and particularly relates to a multi-angle multi-spectral satellite-borne detection ionosphere device.
Background
The ionosphere is an important area in space weather and is one of the most important areas of human space activities, the time-space change of the ionosphere has important influence on the propagation of system radio wave signals such as satellite navigation positioning and ground-space radio communication, and the monitoring and early warning of the state and the change of the ionosphere are important components in space weather services.
The ionosphere has obvious regional distribution and rapid change characteristics, and particularly in low and medium latitude areas, the ionosphere changes more obviously along with time. The Chinese geographic position is mainly at medium and low latitude and is remotely sensed on a geosynchronous stationary orbit, continuous all-weather monitoring can be carried out aiming at key attention areas (such as medium and low latitude and an equator abnormal area) such as ionospheric scintillation, the high spatial and temporal resolution evolution characteristics of the ionosphere in the area are captured, and further abundant detection data are provided for ionosphere research.
The ionosphere detector is used as one of space weather instrument package loads and is mainly used for measuring ionosphere far ultraviolet airglow and obtaining ionosphere characterization parameters through inversion. However, the existing ionospheric detectors have the problem that the ionospheric detection field range and the channel range are limited.
Disclosure of Invention
The invention aims to solve the defects of the conventional ionosphere detection device, and provides a multi-angle multi-spectral space-borne ionosphere detection device which has the characteristics of high sensitivity, high stray light inhibition capability, compact structure and relative easiness in processing and adjustment, and ensures day and night airglow ionosphere detection on the premise of limited resources.
In order to achieve the above object, the present invention provides a multi-angle multi-spectral satellite-borne ionosphere detection device, which comprises: the device comprises: the device comprises a square shell, a multi-angle detection opening, a multi-angle detection channel, a multi-spectrum detection opening and a multi-spectrum detection channel;
the top of the square shell is provided with a multi-angle detection opening and a multi-spectral detection opening, and the multi-angle detection opening and the multi-spectral detection opening form a multi-angle detection channel and a multi-spectral detection channel through a partition plate which is arranged in the square shell and between the multi-angle detection opening and the multi-spectral detection opening; a multi-angle detection channel is arranged below the multi-angle detection opening, and a multi-spectrum detection channel is arranged below the multi-spectrum detection opening.
As an improvement of the above technical solution, the multi-angle detection channel is located at one side of the partition plate, and comprises: a scanning mirror mechanism, a first detector and a first electronics;
the three are all placed in a multi-angle detection channel, a scanning reflector mechanism is positioned right below a multi-angle detection opening, and a first detector and a first electronic device are sequentially arranged behind the scanning reflector mechanism along the direction of the channel;
the multispectral detection channel is positioned on the other side of the partition and comprises: the device comprises a reflector component, a second detector, an optical filter component, a second electronic device, a shading plate and a shading cylinder;
the six detectors are all placed in the multispectral detection channel, the reflector component is positioned below the multispectral detection opening, and a light shading plate, a light shading cylinder, a second detector, a filter component and a second electronic device are sequentially arranged behind the reflector component along the channel direction.
As an improvement of the above technical solution, the scanning mirror mechanism includes: the device comprises a bracket, a first stepping motor, a worm gear, a worm, a scanning mirror base, an off-axis parabolic reflector, a reflector pressing ring, a Hall switch and magnetic steel;
the support is provided with a worm, the worm is provided with a first stepping motor for driving the worm to rotate, the support is also provided with a turbine, the turbine is in inclined thread fit with the worm, meanwhile, the turbine is provided with magnetic steel, the magnetic steel is connected with a Hall switch arranged on the support, the scanning mirror base is coaxially connected with the turbine, the scanning mirror base is provided with an off-axis parabolic reflector and a reflector pressing ring, and the reflector pressing ring covers the off-axis parabolic reflector and is used for pressing the off-axis parabolic reflector and fixing the off-axis parabolic reflector on the scanning mirror base through a screw.
As an improvement of the above technical solution, the scanning mirror base forms an obtuse angle with a rotational symmetry axis installed thereon, and the front surface of the scanning mirror base is set as an inclined surface for reflecting ionospheric airglow or polar light incident from the multi-angle detection opening to the first detector through an off-axis parabolic reflector installed on the inclined surface; the back of the scanning mirror base is coaxially connected with the turbine and used for rotating the off-axis parabolic reflector along with the rotation of the turbine.
As an improvement of the above technical solution, the mirror assembly includes: the device comprises an off-axis parabolic reflector mirror base, an off-axis parabolic reflector and a reflector pressing ring;
the off-axis parabolic reflector mirror base is of a right-angled triangle structure, the off-axis parabolic reflector is mounted on the inclined surface of the off-axis parabolic reflector mirror base, and the reflector pressing ring covers the off-axis parabolic reflector and is fixed on the inclined surface of the off-axis parabolic reflector mirror base through screws.
As an improvement of the above technical solution, the filter assembly includes: the device comprises a first optical filter, a second optical filter, a third optical filter, a fourth optical filter, an optical filter wheel, four optical filter pressing sheets, a second stepping motor, a motor bracket, a coded disc, an optical coupler and an optical coupler circuit;
a round hole is formed in the first optical filter and covered by an optical filter pressing sheet to form a detection channel; the filter wheel is provided with a first filter, a second filter, a third filter and a fourth filter, the first filter, the second filter, the third filter and the fourth filter are pressed and fixed by respective filter pressing sheets, the filter wheel is connected with a shaft of a second stepping motor through a disc, and a second detector is arranged between the filter wheel and the second stepping motor; the second stepping motor is arranged on a motor support, an optical coupling circuit is arranged on the motor support, the optical coupling circuit is arranged on the upper portion of the optical coupling circuit, a coded disc is arranged above each optical coupling, and each coded disc is connected with the second stepping motor.
As one improvement of the above technical solution, the first optical filter is a 130.4nm optical filter; the second filter is a 135.6nm filter, the third filter is an LBH (Lyman-big-Hopfield, leiman-birch-Hopfield) band filter, and the fourth filter is a quartz filter.
Compared with the prior art, the invention has the beneficial effects that:
the multi-angle multi-spectral ionosphere detection device has the advantages of high sensitivity, high stray light inhibition capability, compact structure and relative easiness in processing and adjustment, and ensures day and night airglow ionosphere detection under the premise of limited resources.
Drawings
FIG. 1 is a schematic structural diagram of a multi-angle multi-spectral satellite-borne ionosphere detection device according to the present invention;
FIG. 2 is an exploded view of a multi-angle multi-spectral satellite-borne ionosphere detection device according to the present invention;
FIG. 3 is an exploded view of another angular configuration of a multi-angular multi-spectral spaceborne ionosphere detection device of the present invention;
FIG. 4 is a schematic diagram of the scanning mirror mechanism of the multi-angle multi-spectral satellite-borne ionosphere detection device of FIG. 1;
FIG. 5 is a schematic diagram of a filter assembly in the multi-angle multi-spectral satellite-borne ionosphere detection device of FIG. 1;
FIG. 6 is a schematic diagram of another angular filter component of the multi-angle multi-spectral satellite-borne ionosphere detection device of FIG. 5;
FIG. 7 is a schematic diagram of a mirror assembly in the multi-angle multi-spectral space-borne ionosphere detection apparatus of FIG. 3 according to the present invention;
fig. 8 is a schematic diagram of an off-axis parabolic mirror in a mirror assembly of the multi-angle multi-spectral satellite-borne ionosphere detection apparatus of fig. 7.
Reference numerals:
1. multi-angle channel 2, multispectral channel 3 and shell
4. Scanning mirror mechanism 5, first electronics 6, mirror assembly
7. First detector 8, optical filter assembly 9 and bracket
10. A first stepping motor 11, a worm wheel 12 and a worm
13. Scanning mirror base 14, off-axis parabolic reflector 15 and reflector clamping ring
16. Hall switch 17, magnet steel 18 filter wheel
19. Optical filter pressing sheet 20, second stepping motor 21 and motor support
22. Code wheel 23, optical coupler 24 and optical coupler circuit
25. A first filter 26, a second filter 27, and a third filter
28. A fourth filter 29, an off-axis parabolic mirror base 30, a multi-angle detection opening
31. Multispectral detection opening 32, partition 33, second detector
34. Second electronic device 35, light shielding plate 36, and light shielding tube
37. Circular hole 38, disc
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in FIG. 1, the invention provides a multi-angle multi-spectral satellite-borne ionosphere detection device, which provides more spatial and spectral dimension information for satellite-borne ionosphere detection density and enhances the knowledge of the ionosphere; the multi-angle detection channel can realize large-view-field range detection through the scanning structure, and an observation area is enlarged. The multispectral detection channel can realize multispectral and multiband detection and obtain more spectral information.
As shown in fig. 2 and 3, the apparatus includes: the device comprises a square shell 3, a multi-angle detection opening 30, a multi-angle detection channel 1, a multi-spectrum detection opening 31 and a multi-spectrum detection channel 2;
the top of the square shell 3 is provided with a multi-angle detection opening 30 and a multi-spectral detection opening 31, and the multi-angle detection opening 30 and the multi-spectral detection opening 31 form a multi-angle detection channel 1 and a multi-spectral detection channel 2 through a partition plate 32 which is arranged in the square shell and between the multi-angle detection opening 30 and the multi-spectral detection opening 31; a multi-angle detection channel 1 is arranged below the multi-angle detection opening 30, and a multi-spectral detection channel 2 is arranged below the multi-spectral detection opening 31. The multi-angle detection channel 1 can perform multiple angle detection through the scanning mirror mechanism 4; the multispectral detection channel 2 can be switched through the optical filter component 8, and multiband detection is realized.
In this embodiment, as shown in fig. 2, a plurality of grooves are uniformly formed on the outer wall of the square housing 3 for reducing the weight of the device. The square shell 3 is formed by splicing or clamping an upper flat plate, a lower flat plate, a left flat plate, a right flat plate, a front flat plate and a rear flat plate.
The multi-angle detection channel 1 is located at one side of the partition 32, and includes: a scanning mirror mechanism 4, a first detector 7 and a first electronics 5;
the three are all placed in a multi-angle detection channel 1, a scanning reflector mechanism 4 is positioned right below a multi-angle detection opening 30, and a first detector 7 and a first electronic device 5 are sequentially arranged behind the scanning reflector mechanism 4 along the channel direction, namely, the first detector 7 is arranged behind the scanning reflector mechanism 4, and the first electronic device 5 is arranged behind the first detector 7;
the multispectral detection channel 2 is located on the other side of the partition 32 and comprises: a mirror assembly 6, a second detector 33, a filter assembly 8, a second electronic device 34, a light shielding plate 35 and a light shielding cylinder 36;
the six devices are all placed in the multispectral detection channel 2, the reflector component 6 is positioned below the multispectral detection opening 31, and along the channel direction, a light shading plate 35, a light shading cylinder 36, the optical filter component 8, a second detector 33, the optical filter component 8 and a second electronic device 34 are sequentially arranged behind the reflector component 6, namely, the light shading plate 35 is arranged behind the reflector component 6, the light shading cylinder 36 is arranged behind the light shading plate 35, the second detector 33 is arranged behind the light shading cylinder 36, the optical filter component 8 is arranged behind the second detector 33, and the second electronic device 34 is arranged behind the optical filter component 8.
As shown in fig. 4, the scanning mirror mechanism 4 is configured to receive ionospheric airglow or aurora at any angle and reflect the ionospheric airglow or aurora to the first detector 7; it includes: the device comprises a bracket 9, a first stepping motor 10, a worm wheel 11, a worm 12, a scanning mirror base 13, an off-axis parabolic reflector 14, a reflector pressing ring 15, a Hall switch 16 and magnetic steel 17;
the support 9 is provided with a worm 12, the worm 12 is provided with a first stepping motor 10 for driving the worm 12 to rotate, the support 9 is also provided with a turbine 11, the turbine 11 is in inclined thread fit with the worm 12, meanwhile, the turbine 11 is provided with a magnetic steel 17, the magnetic steel 17 is connected with a Hall switch 16 arranged on the support 9, a scanning mirror base 13 is coaxially connected with the turbine 11, the scanning mirror base 13 is provided with an off-axis parabolic reflector 14 and a reflector clamping ring 15, and the reflector clamping ring 15 covers the off-axis parabolic reflector 14 and is used for pressing the off-axis parabolic reflector 14 and fixing the off-axis parabolic reflector on the scanning mirror base 13 through screws.
The scanning mirror base 13 forms an obtuse angle with a rotational symmetry axis arranged on the scanning mirror base 13, the front surface of the scanning mirror base 13 is an inclined plane, the inclination is 45 degrees, and the scanning mirror base is used for reflecting ionospheric airglow or aurora incident from a multi-angle detection opening to the first detector 7 through an off-axis parabolic reflector 14 arranged on the inclined plane; the back of the scanning mirror base 13 is coaxially connected with the turbine 11 for rotating the off-axis parabolic mirror 14 as the turbine rotates.
The stepping angle of the first stepping motor 10 is 1.8 degrees, and the first stepping motor is used for driving the worm 12; the worm wheel 11 and the worm 12 realize speed change, so that the stepping progress is subdivided into 60 parts, about 0.03 degrees. Meanwhile, the worm wheel 11 and the worm 12 can be locked reversely, so that the position of the off-axis parabolic mirror 14 cannot be displaced due to external vibration.
The hall switch 16 is matched with the magnetic steel 17 and used for positioning the initial position of the scanning mirror base 13.
The support 9 is used for supporting all components included in the scanning mirror mechanism and is fixed with the bottom edge of an external detecting instrument.
Fig. 8 is a schematic diagram of the structure of the off-axis parabolic mirror 14, and as shown in fig. 8, the off-axis parabolic mirror 14 is used for imaging ionospheric airglow or aurora onto the first detector 7. The off-axis amount of the off-axis parabolic reflector is large, so that the off-axis angle is a 90-degree folding angle, the optical axis is folded by 90 degrees, and the installation is convenient. The off-axis quantity is the distance between the incident optical axis and the axis of rotational symmetry connected to the off-axis parabolic reflector 14; the off-axis angle refers to an included angle between the incident optical axis and the emergent optical axis.
The structure of the mirror assembly 6 is shown in fig. 7, and the mirror assembly 6 includes: an off-axis parabolic mirror mount 29, an off-axis parabolic mirror 14, and a mirror clamping ring 15;
as shown in fig. 7, the off-axis parabolic mirror base 29 is in a right triangle structure, the off-axis parabolic mirror 14 is mounted on the inclined surface of the off-axis parabolic mirror base 29, and the mirror pressing ring 15 covers the off-axis parabolic mirror 14 and is fixed on the inclined surface of the off-axis parabolic mirror base 29 by screws.
As shown in fig. 5 and 6, the optical filter assembly 8 includes: a first optical filter 25, a second optical filter 26, a third optical filter 27, a fourth optical filter 28, an optical filter wheel 18, four optical filter pressing sheets 19, a second stepping motor 20, a motor bracket 21, a code disc 22, an optical coupler 23 and an optical coupler circuit 24; a round hole 37 is formed in the first optical filter 25 and covered by the optical filter pressing sheet 19 to form a detection channel; the first optical filter 25 is a 130.4nm optical filter; the second filter 26 is a 135.6nm filter, the third filter 27 is an LBH (Lyman-big-Hopfield, leiman-birch-Hopfield) band filter, and the fourth filter 28 is a quartz filter; wherein each optical filter is a detection channel;
as shown in fig. 5 and 6, the filter wheel 18 is provided with a first filter 25, a second filter 26, a third filter 27 and a fourth filter 28, the first filter 25, the second filter 26, the third filter 27 and the fourth filter 28 are pressed and fixed by respective filter pressing sheets 19, the filter wheel 18 is connected with the shaft of the second stepping motor 20 through a disc 38, and a second detector 33 is arranged between the filter wheel 18 and the second stepping motor 20; the second stepping motor 20 is arranged on a motor support 21, an optical coupler circuit 24 is arranged on the motor support 21, the optical coupler circuit 24 is arranged on the upper portion of the optical coupler circuit 23, a coded disc 22 is arranged on each optical coupler 23, and each coded disc 22 is connected with the second stepping motor 20.
The second stepping motor 20 directly drives the filter wheel 18 to rotate, switches different filters and is used for receiving aurora of different spectral bands, and the optocoupler circuit board 24 and the coded disc 22 are used for positioning the position of each detection channel. The second stepping motor 20 is fixed on the motor bracket 21; and the optical coupling circuit board 24 is used for reading out optical coupling signals.
The first detector 7 and the second detector 33 are both well known to those skilled in the art, and in this embodiment, the detector is hamamatsu R10825. A second detector 33 is located between the filter wheel 18 and the second stepper motor 20.
The first stepping motor 10 and the second stepping motor 20 are both stepping motors known to those skilled in the art, and in this embodiment, the adopted stepping motor is an existing aerospace model product, and the motor model thereof is J38BH 004.
The first electronic device 5 and the second electronic device 34 are electronic processing devices known in the art, and are configured to receive the optical signal of the first detector 7 or the second detector 33, process the optical signal, and send the processed optical signal to the satellite. In this embodiment, the ELECTRONIC processing device used is TIP-C-ELECTRONIC-03.
The light shielding plate 35 and the light shielding cylinder are used for limiting stray light.
The multi-angle multispectral ionosphere detection device comprises the following working processes:
the scan mirror mechanism 4 in the multi-angle channel is off-axis parabolic mirror 14 facing away from the multi-angle detection aperture 30 when not in operation. When the off-axis parabolic mirror starts to work, the first stepping motor 10 is started to drive the worm 12 to rotate, and further drive the turbine 11 to rotate, so that the off-axis parabolic mirror 14 rotates and scans at the scanning angles of-30 degrees to 30 degrees, the scanning interval is 4 degrees, and the retention time is 1 s. The 0-degree direction is the direction pointing to the earth center and is vertical to the instrument top plate; the off-axis parabolic reflector 14 receives the polar light and images the polar light to the first detector 7, the first detector 7 outputs an optical signal and inputs the optical signal to the first electronic device 5, and the first electronic device 5 receives and processes the optical signal and sends the processed signal to the satellite.
The second detector 33 is blocked by the filter wheel 18 when the mirror assembly 6 in the multi-spectral channel is not in operation. When the satellite-based optical coupling detection device starts to work, the reflector component 6 receives different spectrums, the filter wheel 18 is rotated, the spectrums are transmitted to the second detector along one detection channel, the second detector sends the spectrums to the second stepping motor and reads corresponding optical coupling signals, and the second electronic device receives the optical coupling signals, processes the optical coupling signals and sends the optical coupling signals to the satellite; wherein four filters and one filter arranged on the filter wheel 18 circulate between the five detection channels, and the residence time of each time is 1 s.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A multi-angle multi-spectral space-borne exploration ionosphere device, the device comprising: the device comprises a square shell (3), a multi-angle detection opening (30), a multi-angle detection channel (1), a multi-spectrum detection opening (31) and a multi-spectrum detection channel (2);
the top of the square shell (3) is provided with a multi-angle detection opening (30) and a multi-spectrum detection opening (31), and the multi-angle detection opening (30) and the multi-spectrum detection opening (31) form a multi-angle detection channel (1) and a multi-spectrum detection channel (2) through a partition plate (32) which is arranged in the square shell and between the multi-angle detection opening (30) and the multi-spectrum detection opening (31); a multi-angle detection channel (1) is arranged below the multi-angle detection opening (30), and a multi-spectrum detection channel (2) is arranged below the multi-spectrum detection opening (31).
2. The apparatus according to claim 1, wherein the multi-angle detection channel (1) is located at one side of a partition (32) and comprises: a scanning mirror mechanism (4), a first detector (7) and a first electronic device (5);
the three are all placed in a multi-angle detection channel (1), a scanning reflector mechanism (4) is positioned right below a multi-angle detection opening (30), and a first detector (7) and a first electronic device (5) are sequentially arranged behind the scanning reflector mechanism (4) along the channel direction;
the multispectral detection channel (2) is located on the other side of the partition (32) and comprises: the device comprises a reflector component (6), a second detector (33), a filter component (8), a second electronic device (34), a shading plate (35) and a shading cylinder (36);
the six detectors are all placed in the multispectral detection channel (2), the reflector component (6) is positioned below the multispectral detection opening (31), and a light shielding plate (35), a light shielding cylinder (36), a second detector (33), the optical filter component (8) and a second electronic device (34) are sequentially arranged behind the reflector component (6) along the channel direction.
3. The apparatus according to claim 2, wherein the scanning mirror mechanism (4) comprises: the device comprises a bracket (9), a first stepping motor (10), a worm wheel (11), a worm (12), a scanning mirror base (13), an off-axis parabolic reflector (14), a reflector pressing ring (15), a Hall switch (16) and magnetic steel (17);
install worm (12) on support (9), install first step motor (10) on worm (12), be used for driving worm (12) and rotate, still install turbine (11) on support (9), and this turbine (11) and worm (12) screw-thread fit to one side, install magnet steel (17) on this turbine (11) simultaneously, this magnet steel (17) are connected with hall switch (16) of installing on support (9), scanning mirror seat (13) and turbine (11) coaxial coupling, installation off-axis parabolic mirror (14) and reflector clamping ring (15) on scanning mirror seat (13), and reflector clamping ring (15) lid is on off-axis parabolic mirror (14), be used for holding down off-axis parabolic mirror (14), and fix it on scanning mirror seat (13) through the screw.
4. The device according to claim 3, characterized in that the scanning mirror base (13) forms an obtuse angle with the rotational symmetry axis mounted thereon, and the front surface of the scanning mirror base (13) is provided with an inclined surface for reflecting ionospheric airglow or aurora incident from the multi-angle detection opening to the first detector (7) by means of an off-axis parabolic mirror (14) mounted on the inclined surface; the back surface of the scanning mirror base (13) is coaxially connected with the turbine (11) and is used for rotating the off-axis parabolic reflector (14) along with the rotation of the turbine (11).
5. The apparatus according to claim 2, wherein the mirror assembly (6) comprises: an off-axis parabolic reflector base (29), an off-axis parabolic reflector (14) and a reflector clamping ring (15);
the off-axis parabolic reflector mirror base (29) is of a right-angled triangle structure, the off-axis parabolic reflector (14) is installed on the inclined surface of the off-axis parabolic reflector mirror base (29), and the reflector pressing ring (15) covers the off-axis parabolic reflector (14) and is fixed on the inclined surface of the off-axis parabolic reflector mirror base (29) through screws.
6. The device according to claim 2, wherein said optical filter assembly (8) comprises: the device comprises a first optical filter (25), a second optical filter (26), a third optical filter (27), a fourth optical filter (28), an optical filter wheel (18), four optical filter pressing sheets (19), a second stepping motor (20), a motor support (21), a coded disc (22), an optical coupler (23) and an optical coupler circuit (24);
a round hole (37) is formed in the first optical filter (25) and covered by an optical filter pressing sheet (19) to form a detection channel; a first optical filter (25), a second optical filter (26), a third optical filter (27) and a fourth optical filter (28) are arranged on the optical filter wheel (18), the first optical filter (25), the second optical filter (26), the third optical filter (27) and the fourth optical filter (28) are pressed and fixed through respective optical filter pressing sheets (19), the optical filter wheel (18) is connected with a shaft of the second stepping motor (20) through a disc (38), and a second detector (33) is arranged between the optical filter wheel (18) and the second stepping motor (20); the second stepping motor (20) is arranged on the motor support (21), the optical coupler circuit (24) is arranged on the upper portion of the motor support and provided with two optical couplers (23), each optical coupler is provided with a coded disc (22) on the corresponding optical coupler (23), and each coded disc (22) is connected with the second stepping motor (20).
7. The device according to claim 1, wherein the first filter (25) is a 130.4nm filter; the second filter (26) is a 135.6nm filter, the third filter (27) is an LBH band filter, and the fourth filter (28) is a quartz filter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112596095A (en) * | 2020-11-04 | 2021-04-02 | 中国科学院国家空间科学中心 | Satellite-borne multi-probe ionosphere imager device |
| CN113189663A (en) * | 2021-04-02 | 2021-07-30 | 中国科学院国家空间科学中心 | Earth synchronous orbit ionosphere detection device |
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