CN114690394A - Space long-life high-precision rotary telescopic scanning mechanism - Google Patents
Space long-life high-precision rotary telescopic scanning mechanism Download PDFInfo
- Publication number
- CN114690394A CN114690394A CN202210345584.0A CN202210345584A CN114690394A CN 114690394 A CN114690394 A CN 114690394A CN 202210345584 A CN202210345584 A CN 202210345584A CN 114690394 A CN114690394 A CN 114690394A
- Authority
- CN
- China
- Prior art keywords
- scanning
- assembly
- photoelectric encoder
- rotary telescopic
- scanning mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 22
- 230000020347 spindle assembly Effects 0.000 claims description 13
- 238000003384 imaging method Methods 0.000 claims description 10
- 239000004519 grease Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000002360 explosive Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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
- G02B26/10—Scanning systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Astronomy & Astrophysics (AREA)
- Optical Transform (AREA)
- Accessories Of Cameras (AREA)
Abstract
A space long-life high-precision rotary telescopic scanning mechanism belongs to the technical field of precision machinery. The invention selects the high-precision photoelectric encoder as the angle sensor, directly drives the lens component to rotate at 360 degrees continuously and unidirectionally at a uniform speed by the torque motor, measures the rotation angle by the photoelectric encoder on the same rotating shaft and feeds the rotation angle back to the control system, improves the uniformity of the rotation speed by the closed-loop control of the control system, and solves the contradiction between low scanning resolution and large field of view of the space remote sensor.
Description
Technical Field
The invention relates to a rotary telescopic scanning mechanism with long space service life and high precision, which belongs to the technical field of precision machinery and can be used in the field of long-service-life and high-precision application of space optical remote sensing scanning cameras.
Background
At present, due to the limitation of the scale of a detector and the imaging of a large view field, the multi-detection-channel integrated camera is only realized by adopting a light machine scanning imaging mode. And the large-field scanning imaging mainly adopts four modes: 45-degree rotary reflection scanning, oscillating mirror swinging scanning, double-sided mirror scanning and telescope integral rotary scanning. The 45-degree rotating reflection scanning needs to eliminate image rotation, and the difficulty of stray light polarization inhibition is high. The swing mirror has small scanning width and large calibration difficulty of full aperture and full light path. The double-sided mirror rotates to scan and introduces external stray light, and the polarization is large. Compared with the other three types, the telescope integrally rotates, has the advantages of no image rotation, small stray light and small polarization, can add a calibration source outside a scanning target range, and is favorable for full-aperture all-optical-path calibration in flight.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the space long-service-life high-precision rotary telescopic scanning mechanism is provided, the lens component is directly driven by the torque motor to continuously rotate in a single direction of 360 degrees, and meanwhile, the photoelectric encoder on the scanning rotating shaft measures the rotating angle and feeds the rotating angle back to the scanning controller to complete high-precision servo control, so that the contradiction between low scanning resolution and large view field of a space camera is solved.
The technical solution of the invention is as follows: a space long-life high-precision rotary telescopic scanning mechanism comprises a lens assembly, a scanning support frame, a scanning spindle assembly, an auxiliary support assembly and an initiating explosive locking device;
one end of the lens component is connected with the scanning spindle component, and the other end of the lens component is connected with the auxiliary support component;
the scanning support frame is positioned between the scanning spindle assembly and the auxiliary support assembly and is used for supporting the scanning spindle assembly and the auxiliary support assembly;
the scanning main shaft assembly is used for matching with servo control to realize the driving work of the rotary telescopic scanning mechanism and ensure that the lens assembly realizes high-precision uniform scanning imaging according to the instruction requirement;
the auxiliary support assembly is used for realizing auxiliary support of the large-span lens assembly through a deep groove ball bearing;
the flame locking device is fixed with the lens component, and the two flame locking devices are installed in a radial opposite mode.
Further, the scanning spindle assembly comprises a scanning spindle, a torque motor, a motor base, a paired angular contact ball bearing, a bearing seat, a photoelectric encoder protective shell, a photoelectric encoder base, a connecting flange, a bearing inner ring sealing baffle cover and a bearing outer ring sealing baffle cover;
the bearing seat is a mounting base;
the scanning main shaft is of a hollow structure; a slip ring component is arranged inside the lens assembly, and heating and temperature measuring signals of the lens assembly are led out;
the rotor of the torque motor is fixed on the scanning main shaft through a screw, and the stator of the torque motor is fixed on the motor base through a screw;
the paired angular contact ball bearings realize the pre-tightening and sealing of the bearings through the bearing inner ring sealing baffle cover and the bearing outer ring sealing baffle cover respectively;
a reading head of the photoelectric encoder is fixed on the photoelectric encoder seat, and the glass grating is fixed on the scanning main shaft through gluing; the circuit board of the photoelectric encoder is integrally arranged on the photoelectric encoder seat, and the reliability is improved through the backup of the two reading heads;
the photoelectric encoder protective shell is used for protecting the photoelectric encoder circuit board.
Further, the scanning main shaft is of a hollow structure; the inside installs the slip ring subassembly, draws forth the heating and the temperature measurement signal of lens subassembly.
Further, the motor base is made of aluminum-based silicon carbide, and black paint is sprayed on the outer surface of the motor base.
Furthermore, the auxiliary support assembly comprises an auxiliary support rotating shaft, a deep groove ball bearing, an auxiliary support shaft seat and a group of bearing sealing blocking covers; the auxiliary support rotating shaft is connected with the lens component through a screw;
the deep groove ball bearing supports the auxiliary supporting rotating shaft, and the deep groove ball bearing is sealed through a group of bearing sealing retaining covers.
Furthermore, the installation of the photoelectric encoder reading head adopts double reading head backup.
Furthermore, the supporting elements adopted by the scanning spindle assembly and the auxiliary supporting assembly are grease lubrication bearings.
Further, the labyrinth seal design is used to prevent volatilization and loss of grease.
Further, the lens assembly is locked through the firer locking device in the launching stage, and the mechanical resistance of the launching stage is improved.
Furthermore, the lens assembly is mounted and moved forward to be balanced and debugged, so that the influence on the imaging precision of the optical system caused by disturbance caused by the unbalance is reduced.
Compared with the prior art, the invention has the advantages that:
(1) the lens component has the advantages of no image rotation, small stray light and small polarization during integral rotation scanning;
(2) the speed uniformity of the scanning mechanism is high, and the scanning precision is high;
(3) reliability of lens assembly in mechanical test and launching stage is improved through firelock locking
Drawings
FIG. 1 is a view of the structure of a rotary telescopic scanning mechanism according to the present invention;
FIG. 2 is a block diagram of a scanning spindle assembly according to the present invention;
FIG. 3 is a schematic view of the auxiliary support assembly of the present invention.
Detailed Description
In order to better understand the technical solutions, the technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The following describes in further detail a spatial long-life high-precision rotary telescopic scanning mechanism provided in an embodiment of the present application with reference to the drawings of the specification, and specific implementations may include (as shown in fig. 1 to 3): the high-precision rotary scanning mechanism with long space service life is directly driven by a torque motor, is controlled by a high-precision photoelectric encoder in a closed loop mode, and adopts paired angular contact ball bearings and deep groove ball bearings as supports, so that high-precision scanning under a large view field is met, and the contradiction between low scanning resolution and the large view field of a space camera is solved. The mechanical resistance of the rotary telescopic scanning mechanism is greatly improved by locking the firelock. Leakage and loss of bearing lubricant are reduced through the sealing design, and the service life of the space is prolonged. The influence on the imaging precision of the optical system is caused by the disturbance caused by the centrifugal force and the eccentric moment brought by reducing the unbalance amount by implementing dynamic balance on the lens assembly.
The rotary telescopic scanning mechanism feeds back the angle position in real time through the photoelectric encoder, the torque motor is driven to drive the lens component 1 to rotate under the action of the servo control system according to a set scanning motion rule, 360-degree rotary scanning of the telescopic system around a rotating shaft in the track passing direction is achieved, and uniform scanning imaging in a large angle range is achieved.
The rotary telescopic scanning mechanism comprises a lens assembly 1, a scanning support frame 2, a scanning spindle assembly 3, an auxiliary support assembly 4 and an initiating explosive locking device 5. The scanning main shaft assembly 3 is used for matching with servo control to realize the driving work of the rotary telescopic scanning mechanism, and ensures that the lens assembly 1 realizes high-precision uniform scanning imaging according to the instruction requirement. The auxiliary supporting component 4 is mainly used for realizing the auxiliary supporting of the large-span lens component 1 through a deep groove ball bearing, so that the rigidity and the natural frequency of the whole main shaft system are improved, and the vibration and the swing are reduced. The supporting elements adopted by the scanning spindle assembly 3 and the auxiliary supporting assembly 4 are grease lubrication bearings. The heavier lens assembly 1 is locked in the launching stage through the fire locking device 5, and the mechanical resistance of the launching stage is improved.
The invention selects the high-precision photoelectric encoder as the angle sensor, directly drives the lens component to rotate at 360 degrees continuously and unidirectionally at a uniform speed by the torque motor, measures the rotation angle by the photoelectric encoder on the same rotating shaft and feeds the rotation angle back to the control system, improves the uniformity of the rotation speed by the closed-loop control of the control system, and solves the contradiction between low scanning resolution and large field of view of the space remote sensor.
In the scheme provided by the embodiment of the application, the space long-life high-precision rotary telescopic scanning mechanism comprises a lens assembly 1, a scanning support frame 2, a scanning spindle assembly 3, an auxiliary support assembly 4 and a locking device 5; the scanning main shaft component 3 and the auxiliary supporting component 4 are installed on the main supporting frame, the scanning main shaft component 3 is connected with the lens component 1, the lens component 1 is directly driven to rotate continuously and unidirectionally for 360 degrees by the torque motor 32 installed on the scanning main shaft 31, and meanwhile, the photoelectric encoder 36 of the scanning main shaft 31 measures the rotation angle and feeds the rotation angle back to the scanning controller to complete high-precision servo control. The auxiliary supporting component 4 is installed at the other end of the lens component 1, auxiliary support is provided through the deep groove ball bearing 42, the rigidity and the natural frequency of the whole scanning system are improved, the vibration and the swing are reduced, the rotation precision is improved, and meanwhile the clamping stagnation risk of temperature deformation is reduced due to the use of the deep groove ball bearing 42. In the launching stage, the lens assembly 1 is locked through the firer locking device 5, and the firer lock is powered on and unlocked after the lens assembly is in orbit.
The scanning spindle assembly 3 comprises a scanning spindle 31, a torque motor 32, a motor base 33, a paired angular contact ball bearing 34, a bearing seat 35, a photoelectric encoder 36, a photoelectric encoder protective shell 37, a photoelectric encoder base 38, a connecting flange 39, a bearing inner ring sealing baffle cover 311 and a bearing outer ring sealing baffle cover 312; the scanning main shaft 31 is of a hollow structure, a slip ring assembly 313 is arranged in the scanning main shaft, and a heating loop and a temperature measuring signal of the lens assembly 1 are led out; the rotor of the torque motor 32 is fixed on the scanning main shaft 31 through a screw; the stator of the torque motor 32 is fixed on the motor base 33 through screws; the paired angular contact ball bearings realize the pre-tightening and sealing of the bearings through the bearing inner ring sealing stop cover 311 and the bearing outer ring sealing stop cover 312 respectively; a reading head 36a of the photoelectric encoder is fixed on a photoelectric encoder base 38, and a glass grating 36b is fixed on the scanning spindle 31 through gluing; the circuit board 36c of the photoelectric encoder 36 is integrally installed on the photoelectric encoder base 38, and two reading heads 36a are used for realizing backup; the photoelectric encoder protective case 37 is used to protect the photoelectric encoder circuit board.
The auxiliary support assembly 4 comprises an auxiliary support rotating shaft 41, a deep groove ball bearing 42, an auxiliary support shaft seat 43 and a group of bearing sealing blocking covers 44; the auxiliary support rotating shaft 41 is connected with the lens assembly 1 through screws, the deep groove ball bearing 42 supports the auxiliary support rotating shaft 41, and the deep groove ball bearing is sealed through a group of bearing sealing blocking covers 44.
The flame locking devices 5 are fixed with the lens component 1 through screws respectively, and the two flame locking devices 5 are installed in a radial direction in an opposite mode.
The invention improves the speed uniformity by carrying out closed-loop control on the rotating telescopic scanning mechanism, realizes high-precision scanning under the support of the grease lubrication bearing, and solves the contradiction between low scanning resolution and large field of view of the space camera. The scanning mechanism solution with high precision and long service life is provided for the requirements of space emission and on-orbit environment, and has important practical value in the field of aerospace optical remote sensors.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. The utility model provides a rotatory telescope scanning mechanism of space long-life high accuracy which characterized in that: comprises a lens component (1), a scanning support frame (2), a scanning spindle component (3), an auxiliary support component (4) and an initiating explosive locking device (5);
one end of the lens component (1) is connected with the scanning spindle component (3), and the other end of the lens component is connected with the auxiliary supporting component (4);
the scanning support frame (2) is positioned between the scanning spindle assembly (3) and the auxiliary support assembly (4) and is used for supporting the scanning spindle assembly (3) and the auxiliary support assembly (4);
the scanning main shaft assembly (3) is used for matching with servo control to realize the driving work of the rotary telescopic scanning mechanism, and ensuring that the lens assembly (1) realizes high-precision uniform scanning imaging according to the instruction requirement;
the auxiliary support assembly (4) is used for realizing the auxiliary support of the large-span lens assembly (1) through a deep groove ball bearing;
the flame locking device (5) is fixed with the lens component (1), and the two flame locking devices (5) are installed in a radial direction in an opposite mode.
2. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 1, characterized in that: the scanning spindle assembly (3) comprises a scanning spindle (31), a torque motor (32), a motor base (33), a paired angular contact ball bearing (34), a bearing base (35), a photoelectric encoder (36), a photoelectric encoder protective shell (37), a photoelectric encoder base (38), a connecting flange (39), a bearing inner ring sealing baffle cover (311) and a bearing outer ring sealing baffle cover (312);
the bearing seat (35) is a mounting base;
the scanning main shaft (31) is of a hollow structure; a slip ring component (313) is arranged inside the lens assembly, and heating and temperature measuring signals of the lens assembly are led out;
the rotor of the torque motor (32) is fixed on the scanning main shaft (31) through a screw, and the stator of the torque motor is fixed on the motor base (33) through a screw;
the paired angular contact ball bearings realize the pre-tightening and sealing of the bearings through the bearing inner ring sealing baffle cover (311) and the bearing outer ring sealing baffle cover (312) respectively;
a reading head (36a) of the photoelectric encoder (36) is fixed on a photoelectric encoder base (38), and a glass grating (36b) is fixed on the scanning spindle (31) through gluing; the circuit board (36c) of the photoelectric encoder (36) is integrally arranged on the photoelectric encoder base (38), and the reliability is improved through the backup of two reading heads (36 a);
the photoelectric encoder protective shell (37) is used for protecting the photoelectric encoder circuit board.
3. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 2, characterized in that: the scanning main shaft (31) is of a hollow structure; a slip ring component (313) is arranged inside the lens module, and the heating and temperature measuring signals of the lens module are led out.
4. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 2, characterized in that: the motor base (33) is made of aluminum-based silicon carbide, and black paint is sprayed on the outer surface of the motor base.
5. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 2, characterized in that: the auxiliary support assembly (4) comprises an auxiliary support rotating shaft (41), a deep groove ball bearing (42), an auxiliary support shaft seat (43) and a group of bearing sealing blocking covers (44); the auxiliary support rotating shaft (41) is connected with the lens assembly (1) through a screw;
the deep groove ball bearing (42) supports the auxiliary supporting rotating shaft (41), and the deep groove ball bearing (42) is sealed through a group of bearing sealing blocking covers (44).
6. A spatial long life high accuracy rotary telescopic scanning mechanism according to claim 5, characterized in that: the photoelectric encoder reading head (36a) is installed by double reading head backup.
7. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 1, characterized in that: and supporting elements adopted by the scanning main shaft assembly (3) and the auxiliary supporting assembly (4) are grease lubrication bearings.
8. A spatial long life high accuracy rotary telescopic scanning mechanism according to claim 7, characterized in that: the labyrinth seal design is used to prevent volatilization and loss of grease.
9. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 1, characterized in that: the lens assembly (1) is locked by the firer locking device (5) in the launching stage, and the mechanical resistance of the launching stage is improved.
10. A spatial long-life high-precision rotary telescopic scanning mechanism according to claim 1, characterized in that: the lens component (1) is mounted and moves forward in a balanced debugging manner, so that the influence on the imaging precision of the optical system caused by the disturbance caused by the unbalance is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345584.0A CN114690394B (en) | 2022-03-31 | 2022-03-31 | Space long-life high-precision rotary telescopic scanning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345584.0A CN114690394B (en) | 2022-03-31 | 2022-03-31 | Space long-life high-precision rotary telescopic scanning mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114690394A true CN114690394A (en) | 2022-07-01 |
| CN114690394B CN114690394B (en) | 2024-02-09 |
Family
ID=82140677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210345584.0A Active CN114690394B (en) | 2022-03-31 | 2022-03-31 | Space long-life high-precision rotary telescopic scanning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114690394B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4950876A (en) * | 1987-07-31 | 1990-08-21 | Olympus Optical Co., Ltd. | Optical card recording/reproducing apparatus with compensation for displacement deviation between data area of optical card and laser beam |
| CN1424591A (en) * | 2002-12-24 | 2003-06-18 | 中国科学院上海技术物理研究所 | Adaptive variable-speed scanning laser imager |
| JP2012159609A (en) * | 2011-01-31 | 2012-08-23 | Brother Ind Ltd | Optical scanner, image forming device and control program |
| CN106342270B (en) * | 2009-08-12 | 2013-06-19 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of large visual field infrared reconnaissance optical imaging system |
| CN209070117U (en) * | 2018-10-26 | 2019-07-05 | 河南中光学集团有限公司 | A kind of laser automatically scanning detection device |
-
2022
- 2022-03-31 CN CN202210345584.0A patent/CN114690394B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4950876A (en) * | 1987-07-31 | 1990-08-21 | Olympus Optical Co., Ltd. | Optical card recording/reproducing apparatus with compensation for displacement deviation between data area of optical card and laser beam |
| CN1424591A (en) * | 2002-12-24 | 2003-06-18 | 中国科学院上海技术物理研究所 | Adaptive variable-speed scanning laser imager |
| CN106342270B (en) * | 2009-08-12 | 2013-06-19 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of large visual field infrared reconnaissance optical imaging system |
| JP2012159609A (en) * | 2011-01-31 | 2012-08-23 | Brother Ind Ltd | Optical scanner, image forming device and control program |
| CN209070117U (en) * | 2018-10-26 | 2019-07-05 | 河南中光学集团有限公司 | A kind of laser automatically scanning detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114690394B (en) | 2024-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215217505U (en) | Laser tracker with attitude camera | |
| GB2264781A (en) | Rotary motor having an angular position detector | |
| CN105044795A (en) | Method for reducing measurement error of rotating accelerometer gravity gradiometer by using fiber optic gyroscope | |
| CN110006540B (en) | Switching mechanism for black body radiation calibration | |
| US20210218314A1 (en) | Electric motor having a rotor shaft and a first and a second bearing | |
| CN110871898A (en) | Temperature measurement type photoelectric pod | |
| CN108519087A (en) | Tracking platform device based on MEMS gyro and tracking | |
| CN100424540C (en) | Large-bore optical periscope type radar 3-D Scanner | |
| CN114690394B (en) | Space long-life high-precision rotary telescopic scanning mechanism | |
| ES2922079T3 (en) | Angle measuring device and method of operation of an angle measuring device | |
| JP2014224816A (en) | Angle measuring device | |
| ES2918202T3 (en) | angle measuring device | |
| CN109813296B (en) | Angle measuring device and method for eliminating scale factor error of fiber-optic gyroscope | |
| US20050087683A1 (en) | Rotary encoder | |
| CN109724581B (en) | Strapdown north-seeking method based on automatic theodolite auxiliary rotation modulation | |
| EP3889462A1 (en) | Gear motor | |
| US10612945B2 (en) | Angle measurement system | |
| CN108321983B (en) | A kind of small-sized holder frame torque motor and photoelectric code disk combined type attachment device | |
| CN107014364B (en) | A kind of stator rotating type magnetic suspension sensitivity gyroscope | |
| CN219695431U (en) | Turntable device for laser ranging | |
| CN114166209B (en) | High-precision star tracker | |
| CN114791666B (en) | Compact biprism scanning device | |
| CN115903211A (en) | Space grease lubrication bearing double-shaft synchronous scanning device and method | |
| Liu et al. | Self-calibration Method of Circular Grating Error in Rotary Inertial Navigation | |
| CN108333747A (en) | Mirror system is swept in a kind of lightweight for expanding visual field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |