CN107907992A - The fast steering mirror actuation mechanism and start method of direct stress electromagnetic drive - Google Patents
The fast steering mirror actuation mechanism and start method of direct stress electromagnetic drive Download PDFInfo
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- CN107907992A CN107907992A CN201711258186.0A CN201711258186A CN107907992A CN 107907992 A CN107907992 A CN 107907992A CN 201711258186 A CN201711258186 A CN 201711258186A CN 107907992 A CN107907992 A CN 107907992A
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- direct stress
- stress electromagnetic
- electromagnetic actuator
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- mirror support
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000033001 locomotion Effects 0.000 claims description 24
- 230000005284 excitation Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 4
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 230000004913 activation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
- G02B26/085—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting means being moved or deformed by electromagnetic means
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Micromachines (AREA)
Abstract
The fast steering mirror actuation mechanism and start method of a kind of direct stress electromagnetic drive, the actuation mechanism includes the hinged support of Universal flexible of mirror support structure, base and connection mirror support structure and base, further include the four direct stress electromagnetic actuators for being fixed on and being symmetric between mirror support structure and base on the hinged support of Universal flexible, four direct stress electromagnetic actuator bottoms are fixed on base, top is connected by operating bar with rod-type displacement amplifying mechanism, and rod-type displacement amplifying mechanism is connected with mirror support structure by straight beam type flexible hinge；The four direct stress electromagnetic actuator structure size is identical, including secured core, permanent magnet, magnet exciting coil, moves iron core；Four direct stress electromagnetic actuators are connected by its rod-type displacement amplifying mechanism with mirror support structure using straight beam type flexible hinge respectively；The present invention also provides the start method of the fast steering mirror, the characteristics of which has higher resolution ratio, and also compact-sized, fast response time.
Description
Technical field
The present invention relates to light beam orientation angle adjustment control technical field, and in particular to a kind of direct stress electromagnetic drive it is fast
Fast deflection mirror actuation mechanism and start method.
Background technology
With the development of FreeSpace Laser Communications Technique, application of the light beam orientation angle adjusting mechanism in laser space communication
More and more extensive, most light beam is directed toward adjusting mechanism and is broadly divided into Piezoelectric Driving and sound according to the difference of type of drive at present
The characteristics of circle motor driving, Piezoelectric Driving is to make dynamic frequency height, and bandwidth range is big, but angle of regulation range is small, it is necessary to displacement
Enlarger expands angle of regulation range, and power consumption is higher；Voice coil motor driving is to promote mirror surface structure using Ampere force,
Its main feature is that driving force is big, small power consumption, angle of regulation range is big, but is limited by structural support rigidity, and frequency range is small, and
Control electric current increases with the increase for adjusting angular range, and fever is serious, influences overall system performance.
The content of the invention
In order to solve the above-mentioned problems of the prior art, it is an object of the invention to provide a kind of direct stress electromagnetic drive
Fast steering mirror actuation mechanism and start method, the mechanism structure is compact, has higher frequency range, larger is inclined
Gyration adjustable range.
To achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive, including mirror support structure 6, base 7 with
And the hinged support 16 of the Universal flexible of connection mirror support structure 6 and base 7, further include and be fixed on mirror support structure 6 and base 7
Between on the hinged 16 four direct stress electromagnetic actuators being symmetric of support of Universal flexible and be fixed on mirror support knot
It is used for the capacitive displacement transducer 5 for detecting 6 deflection angle of mirror support structure, four direct stress electromagnetism between structure 6 and base 7
Actuator is respectively the first direct stress electromagnetic actuator 1, the second direct stress electromagnetic actuator 2, the 3rd direct stress electromagnetic actuator 3
With the 4th direct stress electromagnetic actuator 4, four direct stress electromagnetic actuator bottoms are bolted on base 7, and four just
It is connected at the top of stress electromagnetic actuator by operating bar 10 with rod-type displacement amplifying mechanism 9, rod-type displacement amplifying mechanism 9 and minute surface
Supporting structure 6 is connected by straight beam type flexible hinge 8.
The first direct stress electromagnetic actuator 1 includes C-shaped secured core 11, permanent magnet 12, magnet exciting coil 13 and movement
Iron core 14；Magnet exciting coil 13 is wrapped in the both sides up and down of C-shaped secured core 11, and permanent magnet 12 is connected in C-shaped secured core 11
Portion, movement iron core 14 and permanent magnet 12 are consolidated by being located at the opening of C-shaped secured core 11 after silica gel pad adhesion with C-shaped
11 opening both ends of fixed core form air gap 15；The second direct stress electromagnetic actuator 2, the 3rd direct stress electromagnetic actuator 3
It is identical with the first direct stress electromagnetic actuator 1 with the structure size of the 4th direct stress electromagnetic actuator 4, the first direct stress electricity
1 and the 3rd direct stress electromagnetic actuator 3 of magnetic actuator rotates axial symmetry on Y and turns about the X axis, the second direct stress electromagnetic activation
2 and the 4th direct stress electromagnetic actuator 4 of device rotates axial symmetry on X and is rotated around Y-axis, and the X rotation axis and Y rotation axis are mutual
Vertically and in the same plane；Operating bar 10 is connected with movement iron core 14 by rubber cushion blocks (17), the top of operating bar 10 and bar
Formula displacement amplifying mechanism 9 connects.
The movement iron core 14 uses soft magnetic materials.
The mirror support structure 6, straight beam type flexible hinge 8, rod-type displacement amplifying mechanism 9 and operating bar 10 use duralumin
Alloy material.
The C-shaped secured core 11 is embedded in hollow, rectangular enclosure.
A kind of start method of the fast steering mirror actuation mechanism of direct stress electromagnetic drive, just should to first
1 input current signal of power electromagnetic actuator, the magnet exciting coil 13 of energization can produce excitation field, and the excitation field direction is with electric current
Direction change；Magnet exciting coil 13 produce excitation field be added to permanent magnet 12 generation DC bias magnetic field, fixed by C-shaped
Air gap 15 between iron core 11 and movement iron core 14 is applied on movement iron core 14；When the side of excitation field and DC bias magnetic field
To it is identical when, movement iron core 14 will be subject to the electromagnetism direct stress consistent with excitation field direction, and along 15 normal orientation of air gap
Movement, produces start displacement；The start displacement is output to rod-type displacement amplifying mechanism 9 along operating bar 10, with rod-type displacement equations
Mechanism 9 can produce deflection by the mirror support structure 6 that straight beam type flexible hinge 8 is connected；Capacitive displacement transducer 5 is real-time
The deflection angle of mirror support structure 6 is monitored, and feeds back to direct stress electromagnetic actuator, realizes closed-loop control, improves minute surface branch
The deflection angle degree of regulation of support structure 6；Since the start displacement that direct stress electromagnetic actuator produces is micron dimension, this
The angular adjustment resolution ratio of invention can reach microradian level；Two groups of direct stress electromagnetic actuators being diagonally distributed are at the same time along opposite
Direction start, realizes micro- angular deflection control in speculum two-dimensional quadrature direction.
Compared to the prior art the present invention, has the following advantages that：
1) in the present invention, using direct stress electromagnetic drive mode, compared to voice coil motor type of drive, using magnetic field superposition,
Moving component is set to produce axial movement, driving force is big, and caloric value is few, and frequency range is big.
2) in the present invention, using direct stress electromagnetic drive mode, compared to piezoelectric actuator ultra-precision driving mode, power consumption is relatively low, rings
Answer speed fast.
Brief description of the drawings
Fig. 1 is fast steering mirror actuation mechanism schematic diagram of the present invention.
Fig. 2 is direct stress electromagnetic actuator structure diagram of the present invention.
Fig. 3 is fast steering mirror actuation mechanism sectional view of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive of the present invention, including minute surface branch
Support structure 6, base 7 and the hinged support 16 of the Universal flexible of connection mirror support structure 6 and base 7, further include and are fixed on minute surface
Between supporting structure 6 and base 7 on the hinged 16 four direct stress electromagnetic actuators being symmetric of support of Universal flexible and
It is fixed on and is used for the capacitive displacement transducer for detecting 6 deflection angle of mirror support structure between mirror support structure 6 and base 7
5, four direct stress electromagnetic actuators are respectively the first direct stress electromagnetic actuator 1, the second direct stress electromagnetic actuator the 2, the 3rd
3 and the 4th direct stress electromagnetic actuator 4 of direct stress electromagnetic actuator, four direct stress electromagnetic actuator bottoms are bolted
On base 7, it is connected at the top of four direct stress electromagnetic actuators by operating bar 10 with rod-type displacement amplifying mechanism 9, rod-type position
Enlarger 9 is moved to be connected by straight beam type flexible hinge 8 with mirror support structure 6.
As the preferred embodiment of the present invention, the first direct stress electromagnetic actuator 1 include C-shaped secured core 11,
Permanent magnet 12, magnet exciting coil 13 and movement iron core 14；Magnet exciting coil 13 is wrapped in the both sides up and down of C-shaped secured core 11, permanent magnetism
Iron 12 is connected to the middle part of C-shaped secured core 11, and movement iron core 14 is with permanent magnet 12 by being fixed after silica gel pad adhesion positioned at C-shaped
The opening of iron core 11, and form air gap 15 with 11 opening both ends of C-shaped secured core；The second direct stress electromagnetic actuator
2nd, the structure size of the 3rd direct stress electromagnetic actuator 3 and the 4th direct stress electromagnetic actuator 4 and the first direct stress electromagnetic activation
Device 1 is identical, and the first direct stress electromagnetic actuator 1 and the 3rd direct stress electromagnetic actuator 3 rotate axial symmetry and around X on Y
Axis rotates, and the second direct stress electromagnetic actuator 2 and the 4th direct stress electromagnetic actuator 4 rotate axial symmetry on X and turn around Y-axis
Dynamic, the X rotation axis and Y rotation axis are mutually perpendicular to and in the same plane；Operating bar 10 passes through rubber pad with movement iron core 14
Block 17 connects, and the top of operating bar 10 is connected with rod-type displacement amplifying mechanism 9.
Mirror support structure 6 is connected with base 7 by the hinged support 16 of Universal flexible, four direct stress electromagnetic actuator installations
On base 2, and symmetrical on the hinged support 16 of Universal flexible, in being diagonally distributed two-by-two.Two direct stress electricity being diagonally distributed
Magnetic actuator is along the opposite driving force of the axial outbound course of operating bar 10, so as to produce moment of flexure so that 6 edge of mirror support structure
Another axis deflects certain angle.Capacitive displacement transducer 5, capacitance are installed between base 7 and mirror support structure 6
Formula displacement sensor 5 is bolted on base 7, for detecting the deflection angle of mirror support structure 6, and feeds back to work
Dynamic device, so as to form displacement closed loop feedback control, improves the angular adjustment precision of fast steering mirror.
As shown in Fig. 2, the first direct stress electromagnetic actuator 1 is embedded in hollow, rectangular shell including C-shaped secured core 11
Inside, permanent magnet 12 are installed on the middle part of C-shaped secured core 11.The top and bottom of C-shaped secured core 11 are wound with excitation wire
Circle 13, movement iron core 14 are connected with permanent magnet 12, move the top and bottom of iron core 14 respectively at 11 external part of C-shaped secured core
Lower part and top it is corresponding, form air gap 15.Permanent magnet 12 produces DC bias magnetic field, which moves along permanent magnet 12
Iron core 14, air gap 15, C-shaped secured core 11 form direct current biasing magnetic circuit.It is powered to magnet exciting coil 13, produces excitation field, should
Magnetic field along magnet exciting coil 13, C-shaped secured core 11, air gap 15, move iron core 14, permanent magnet 12, C-shaped secured core 11 form encourage
Magnetic magnetic circuit.Excitation field and the bigoted magnetic field of direct current are superimposed, produce electromagnetism direct stress, the direct stress direction and magnetic circuit direction one
Cause, powered motion iron core 14 produces start displacement along 15 normal direction of air gap, changes the direction of 13 electrical current of magnet exciting coil, electromagnetism is just
Stress also changes correspondingly direction, and the operating bar 10 being connected with movement iron core 14 can vertically move up and down, the athletic meeting
Mirror support structure 6 is delivered to, when the collaboration start of diagonal two direct stress electromagnetic actuators, 6 edge of mirror support structure can be promoted
Another diagonally opposed deflection.
As the preferred embodiment of the present invention, the mirror support structure 6, straight beam type flexible hinge 8, operating bar 10 and bar
Formula displacement amplifying mechanism 9 uses duralumin, hard alumin ium alloy material.
As the preferred embodiment of the present invention, the movement iron core 14 uses soft magnetic materials.
As the preferred embodiment of the present invention, bolt uses non-magnetic bolt.
The present invention operation principle be：Give the first direct stress electromagnetic actuator 1 input current signal, the magnet exciting coil of energization
13 can produce excitation field, which changes with current direction；The excitation field that magnet exciting coil 13 produces is added to
The DC bias magnetic field that permanent magnet 12 produces, fortune is applied to by the air gap 15 between C-shaped secured core 11 and movement iron core 14
In dynamic iron core 14；When excitation field is identical with the direction of DC bias magnetic field, movement iron core 14 will be subject to and excitation field
The consistent electromagnetism direct stress in direction, and moved along 15 normal orientation of air gap, produce start displacement；The start displacement is along operating bar 10
Rod-type displacement amplifying mechanism 9 is output to, the minute surface branch being connected with rod-type displacement amplifying mechanism 9 by straight beam type flexible hinge 8
Support structure 6 can produce deflection；Capacitive displacement transducer 5 monitors the deflection angle of mirror support structure 6 in real time, and feeds back to just
Stress electromagnetic actuator, realizes closed-loop control, improves the deflection angle degree of regulation of mirror support structure 6；Due to direct stress electricity
The start displacement that magnetic actuator produces is micron dimension, therefore the angular adjustment resolution ratio of the present invention can reach microradian level；
Two groups of direct stress electromagnetic actuator starts simultaneously in opposite directions being diagonally distributed, realize micro- angle in speculum two-dimensional quadrature direction
Degree deflection control.
Claims (6)
- A kind of 1. fast steering mirror actuation mechanism of direct stress electromagnetic drive, it is characterised in that：Including mirror support structure (6), base (7) and the hinged support (16) of the Universal flexible of connection mirror support structure (6) and base (7), further include and are fixed on Four direct stress electromagnetism being symmetric between mirror support structure (6) and base (7) on the hinged support (16) of Universal flexible Actuator and be fixed between mirror support structure (6) and base (7) be used for detect mirror support structure (6) deflection angle Capacitive displacement transducer (5), four direct stress electromagnetic actuators be respectively the first direct stress electromagnetic actuator (1), second just Stress electromagnetic actuator (2), the 3rd direct stress electromagnetic actuator (3) and the 4th direct stress electromagnetic actuator (4), four direct stress Electromagnetic actuator bottom is bolted on base (7), passes through operating bar (10) at the top of four direct stress electromagnetic actuators It is connected with rod-type displacement amplifying mechanism (9), rod-type displacement amplifying mechanism (9) is flexible by straight beam type with mirror support structure (6) Hinge (8) connects.
- 2. a kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive according to claim 1, its feature exist In：The first direct stress electromagnetic actuator (1) includes C-shaped secured core (11), permanent magnet (12), magnet exciting coil (13) and fortune Dynamic iron core (14)；Magnet exciting coil (13) is wrapped in the both sides up and down of C-shaped secured core (11), and permanent magnet (12) is connected to C-shaped and consolidates In the middle part of fixed core (11), movement iron core (14) is with permanent magnet (12) by being located at C-shaped secured core (11) after silica gel pad adhesion Opening, and with C-shaped secured core (11) opening both ends form air gap (15)；The second direct stress electromagnetic actuator (2), the structure size of the 3rd direct stress electromagnetic actuator (3) and the 4th direct stress electromagnetic actuator (4) and the first direct stress electricity Magnetic actuator (1) is identical, and the first direct stress electromagnetic actuator (1) and the 3rd direct stress electromagnetic actuator (3) are rotated on Y Axial symmetry simultaneously turns about the X axis, and the second direct stress electromagnetic actuator (2) and the 4th direct stress electromagnetic actuator (4) are on X rotation axis Symmetrical and rotated around Y-axis, the X rotation axis and Y rotation axis are mutually perpendicular to and in the same plane；Operating bar (10) and movement iron Core (14) is connected by rubber cushion blocks (17), is connected at the top of operating bar (10) with rod-type displacement amplifying mechanism (9).
- 3. a kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive according to claim 1, its feature exist In：The movement iron core (14) uses soft magnetic materials.
- 4. a kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive according to claim 1, its feature exist In：The mirror support structure (6), straight beam type flexible hinge (8), rod-type displacement amplifying mechanism (9) and operating bar (10) use Duralumin, hard alumin ium alloy material.
- 5. a kind of fast steering mirror actuation mechanism of direct stress electromagnetic drive according to claim 1, its feature exist In：The C-shaped secured core (11) is embedded in hollow, rectangular enclosure.
- A kind of 6. work of the fast steering mirror actuation mechanism of direct stress electromagnetic drive of claim 1 to 5 any one of them Dynamic method, it is characterised in that：To first direct stress electromagnetic actuator (1) input current signal, magnet exciting coil (13) meeting of energization Excitation field is produced, which changes with current direction；The excitation field that magnet exciting coil (13) produces is added to forever The DC bias magnetic field that magnet (12) produces, is made by the air gap (15) between C-shaped secured core (11) and movement iron core (14) Use on movement iron core (14)；When excitation field is identical with the direction of DC bias magnetic field, movement iron core (14) will be subject to The electromagnetism direct stress consistent with excitation field direction, and moved along air gap (15) normal orientation, produce start displacement；The start position Move along operating bar (10) and be output to rod-type displacement amplifying mechanism (9), pass through straight beam type flexible hinge with rod-type displacement amplifying mechanism (9) The mirror support structure (6) that chain (8) is connected can produce deflection；Capacitive displacement transducer (5) monitors mirror support knot in real time The deflection angle of structure (6), and direct stress electromagnetic actuator is fed back to, realize closed-loop control, improve the inclined of mirror support structure (6) Gyration degree of regulation；Since the start displacement that direct stress electromagnetic actuator produces is micron dimension, the angle of the present invention Microradian level can be reached by adjusting resolution ratio；Two groups of direct stress electromagnetic actuator starts simultaneously in opposite directions being diagonally distributed, Realize micro- angular deflection control in speculum two-dimensional quadrature direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258186.0A CN107907992B (en) | 2017-12-01 | 2017-12-01 | The fast steering mirror actuation mechanism and actuation method of direct stress electromagnetic drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258186.0A CN107907992B (en) | 2017-12-01 | 2017-12-01 | The fast steering mirror actuation mechanism and actuation method of direct stress electromagnetic drive |
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| CN107907992A true CN107907992A (en) | 2018-04-13 |
| CN107907992B CN107907992B (en) | 2019-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761772A (en) * | 2018-05-30 | 2018-11-06 | 中国科学院光电技术研究所 | Frame type electric adjusting mirror mounted like mirror frame |
| CN111427148A (en) * | 2020-04-01 | 2020-07-17 | 北京航空航天大学 | Maxwell force driven quick deflection mirror |
| CN115728936A (en) * | 2022-11-30 | 2023-03-03 | 西安交通大学 | Two-degree-of-freedom deflection adjusting mechanism based on electromagnetic normal stress driving and control method |
| CN116719145A (en) * | 2023-08-09 | 2023-09-08 | 北京瑞控信科技股份有限公司 | Two-dimensional non-frame large-angle quick reflector |
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| CA2359554A1 (en) * | 2000-11-03 | 2002-05-03 | Ramaswamy Mahadevan | Microelectromechanical optical switches including optical paths having optical loss equalization therebetween |
| CN1808186A (en) * | 2006-02-09 | 2006-07-26 | 北京航空航天大学 | Fast steering reflection mirror with giant magnetostrictive driver |
| CN102981244A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Two-dimensional large-diameter transmission-type quick reflecting mirror |
| CN103913838A (en) * | 2014-02-21 | 2014-07-09 | 西安交通大学 | Two-dimensional quick-deflection reflector actuating mechanism and actuating method thereof |
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2017
- 2017-12-01 CN CN201711258186.0A patent/CN107907992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2359554A1 (en) * | 2000-11-03 | 2002-05-03 | Ramaswamy Mahadevan | Microelectromechanical optical switches including optical paths having optical loss equalization therebetween |
| CN1808186A (en) * | 2006-02-09 | 2006-07-26 | 北京航空航天大学 | Fast steering reflection mirror with giant magnetostrictive driver |
| CN102981244A (en) * | 2012-12-25 | 2013-03-20 | 中国科学院长春光学精密机械与物理研究所 | Two-dimensional large-diameter transmission-type quick reflecting mirror |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761772A (en) * | 2018-05-30 | 2018-11-06 | 中国科学院光电技术研究所 | Frame type electric adjusting mirror mounted like mirror frame |
| CN111427148A (en) * | 2020-04-01 | 2020-07-17 | 北京航空航天大学 | Maxwell force driven quick deflection mirror |
| CN111427148B (en) * | 2020-04-01 | 2022-02-22 | 北京航空航天大学 | Maxwell force driven quick deflection mirror |
| CN115728936A (en) * | 2022-11-30 | 2023-03-03 | 西安交通大学 | Two-degree-of-freedom deflection adjusting mechanism based on electromagnetic normal stress driving and control method |
| CN115728936B (en) * | 2022-11-30 | 2024-05-17 | 西安交通大学 | Two-degree-of-freedom deflection adjusting mechanism based on electromagnetic normal stress driving and control method |
| CN116719145A (en) * | 2023-08-09 | 2023-09-08 | 北京瑞控信科技股份有限公司 | Two-dimensional non-frame large-angle quick reflector |
| CN116719145B (en) * | 2023-08-09 | 2023-12-29 | 北京瑞控信科技股份有限公司 | Two-dimensional non-frame large-angle quick reflector |
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| Publication number | Publication date |
|---|---|
| CN107907992B (en) | 2019-06-04 |
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Effective date of registration: 20240313 Address after: 1st Floor, Northwest Building of Eleven Science and Technology, No. 532 Shenzhousan Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province, 710100 Patentee after: XI'AN LANGWEI TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Beilin District Xianning West Road 710049, Shaanxi city of Xi'an province No. 28 Patentee before: XI'AN JIAOTONG University Country or region before: China |