CN210268680U - Test switching device for laser inertial measurement unit temperature compensation system - Google Patents
Test switching device for laser inertial measurement unit temperature compensation system Download PDFInfo
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- CN210268680U CN210268680U CN201921270649.XU CN201921270649U CN210268680U CN 210268680 U CN210268680 U CN 210268680U CN 201921270649 U CN201921270649 U CN 201921270649U CN 210268680 U CN210268680 U CN 210268680U
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Abstract
The utility model discloses a laser inertial measurement unit temperature compensation system test switching device, the bottom end of a vertical fixed plate of the device is fixedly connected with one end of a horizontal bottom plate, the top end of the vertical fixed plate is fixedly connected with one end of a double-shaft inertial measurement unit switching device inclined mounting plate, the other end of the double-shaft inertial measurement unit switching device inclined mounting plate is fixedly connected with the other end of the horizontal bottom plate, a platform body mounting surface of a laser inertial measurement unit platform body is assembled on the double-shaft inertial measurement unit switching device inclined mounting plate through a laser inertial measurement unit platform body mounting surface mounting threaded hole, and the laser inertial measurement unit platform body is positioned in the laser inertial measurement unit platform body assembling through hole, and an included angle between the horizontal bottom plate and the double-shaft inertial measurement unit switching device inclined mounting plate can ensure that each gyro assembly mounting surface of the laser inertial measurement unit platform body mounted on the double-shaft inertial measurement unit switching device inclined mounting plate is parallel or vertical to the inner frame horizontal platform surface of the laser inertial measurement unit temperature compensation test system triaxial rotating platform. The utility model discloses enable laser and be used to the requirement that set initial position satisfies each gyro component and horizontal plane one-tenth perpendicular or parallel relation.
Description
Technical Field
The utility model relates to a laser is used to group's test technical field, specifically indicates a laser is used to group's temperature compensation system test switching device.
Background
The laser inertial measurement unit stage 4 is a non-orthogonal design stage, as shown in fig. 1, and each gyro assembly mounting surface 5 and the stage mounting surface 6 are not in parallel or perpendicular relation. When the laser inertial measurement unit is subjected to temperature compensation test, the laser inertial measurement unit needs to be subjected to self-calibration test, the laser inertial measurement unit corresponding to fig. 1 adopts a 19-position inertial measurement unit parameter self-calibration algorithm, and each calibration position requires that each gyro component of the laser inertial measurement unit platform body is in parallel or vertical relation with a horizontal plane, so that the validity of calibration data is ensured. Therefore, when the laser inertial measurement unit is installed, if the installation surface of the table body of the laser inertial measurement unit in fig. 1 is directly installed on the horizontal table surface of the inner frame of the three-axis turntable of the laser inertial measurement unit temperature compensation test system in parallel or vertically, the requirement that each gyro component is in parallel or vertical relation with the horizontal plane cannot be met, that is, the self-calibration requirement of the laser inertial measurement unit cannot be met.
Disclosure of Invention
The utility model aims at providing a laser is used to group temperature compensation system test switching device, this switching device enables the laser and is used to the requirement that the initial position satisfies each gyro component and horizontal plane one-tenth perpendicular or parallel relation.
To achieve the object, the testing and switching device of the laser inertial measurement unit temperature compensation system designed by the utility model comprises a horizontal bottom plate, a vertical fixing plate and a double-shaft inertial measurement unit switching device inclined mounting plate, wherein the bottom end of the vertical fixing plate is fixedly connected with one end of the horizontal bottom plate, the top end of the vertical fixing plate is fixedly connected with one end of the double-shaft inertial measurement unit switching device inclined mounting plate, the other end of the double-shaft inertial measurement unit switching device inclined mounting plate is fixedly connected with the other end of the horizontal bottom plate, the double-shaft inertial measurement unit switching device inclined mounting plate is provided with a laser inertial measurement unit platform body mounting through hole, the double-shaft inertial measurement unit switching device inclined mounting plate is also provided with a laser inertial measurement unit platform body mounting surface mounting threaded hole, the platform body mounting surface of the laser inertial measurement unit platform body is mounted on the double-shaft inertial measurement unit switching device inclined mounting plate through hole, and the laser inertial measurement unit platform body is positioned in the laser inertial measurement unit platform, the horizontal bottom plate is used for being fixed on the horizontal table surface of the inner frame of the triaxial rotating table of the laser inertial measurement unit temperature compensation testing system, and the included angle between the horizontal bottom plate and the inclined mounting plate of the biaxial inertial measurement unit switching device can ensure that the mounting surfaces of all gyro assemblies of the laser inertial measurement unit table body mounted on the inclined mounting plate of the biaxial inertial measurement unit switching device are parallel or perpendicular to the horizontal table surface of the inner frame of the triaxial rotating table of the laser inertial measurement unit temperature compensation testing system.
The utility model discloses an above-mentioned laser is used to group's temperature compensation system test switching device enables the laser and is used to the group platform body and install back on it, and each gyro unit and the laser of the group platform body are used to the inside casing horizontal table face (horizontal plane) of group's temperature compensation test system triaxial revolving stage and become perpendicular or parallel relation. The accuracy of the self-calibration test of the laser inertial measurement unit is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a laser inertial measurement unit stage in the background art;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of a horizontal base plate according to the present invention;
fig. 4 is a schematic structural view of the vertical fixing plate of the present invention;
fig. 5 is a schematic view of the bottom view structure of the inclined mounting plate of the middle biaxial inertial measurement unit adapter device of the present invention;
fig. 6 is a structural diagram illustrating an assembled state of the present invention.
The laser inertial measurement unit comprises a horizontal bottom plate 1, a circular lightening hole 1.1, a vertical fixing plate 2, a rectangular lightening hole 2.1, a tilting mounting plate of a 3-double-shaft inertial measurement unit switching device, a laser inertial measurement unit platform body 3.1 assembling through hole, a laser inertial measurement unit platform body mounting threaded hole 3.2, a tilting connecting section 3.3, a laser inertial measurement unit platform body 4, a gyro component 5, a gyro component 6, a platform body mounting surface 7 and a calibration transition hole.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
the laser inertial measurement unit temperature compensation system test switching device comprises a horizontal bottom plate 1, a vertical fixing plate 2 and a double-shaft inertial measurement unit switching device inclined mounting plate 3, wherein the bottom end of the vertical fixing plate 2 is fixedly connected with one end of the horizontal bottom plate 1 through a corresponding threaded hole and a bolt, the top end of the vertical fixing plate 2 is fixedly connected with one end of the double-shaft inertial measurement unit switching device inclined mounting plate 3 through a corresponding threaded hole and a bolt, the other end of the double-shaft inertial measurement unit inclined mounting plate 3 is fixedly connected with the other end of the horizontal bottom plate 1 through a corresponding threaded hole and a bolt, a laser inertial measurement unit platform body assembly through hole 3.1 is formed in the double-shaft inertial measurement unit switching device inclined mounting plate 3, a laser inertial measurement unit platform body mounting surface mounting threaded hole 3.2 is further formed in the double-shaft inertial measurement unit switching device inclined mounting plate 3, a platform body mounting surface 6 of the laser inertial measurement unit platform body 4 is assembled on the double-shaft inertial measurement unit switching device inclined mounting plate 3 through the laser inertial measurement unit And the laser inertial measurement unit platform body 4 is positioned in the laser inertial measurement unit platform body assembling through hole 3.1, the horizontal bottom plate 1 is used for being fixed on the horizontal table surface of the inner frame of the triaxial rotating table of the laser inertial measurement unit temperature compensation testing system, and the included angle between the horizontal bottom plate 1 and the biaxial inertial measurement unit inclined mounting plate 3 can ensure that each gyro component mounting surface 5 of the laser inertial measurement unit platform body 4 mounted on the biaxial inertial measurement unit inclined mounting plate 3 is parallel or vertical to the horizontal table surface of the inner frame of the triaxial rotating table of the laser inertial measurement unit temperature compensation testing system.
In the above technical scheme, the included angle between the horizontal bottom plate 1 and the inclined mounting plate 3 of the biaxial inertial measurement unit adapter device is 37 °. The angle can ensure that each gyro component mounting surface 5 of the laser inertial measurement unit table body 4 mounted on the inclined mounting plate 3 of the double-shaft inertial measurement unit switching device is parallel or vertical to the horizontal table surface of the inner frame of the three-shaft rotary table of the laser inertial measurement unit temperature compensation test system.
In the technical scheme, the horizontal bottom plate 1 is provided with a circular lightening hole 1.1. The vertical fixing plate 2 is provided with two rectangular lightening holes 2.1 which are arranged side by side. The design can reduce the weight load of the horizontal table surface of the inner frame of the three-axis turntable of the laser inertial measurement unit temperature compensation test system, and ensure the self-calibration test precision of the laser inertial measurement unit.
In the technical scheme, a plurality of calibration transition holes 7 which are uniformly distributed are formed in the side walls of the horizontal bottom plate 1, the vertical fixing plate 2 and the double-shaft inertial measurement unit adapter coupling device inclined mounting plate 3. The calibration transition hole 7 is an assembly hole which is needed when the inertial measurement unit platform body is arranged outside the laser inertial measurement unit temperature compensation test system for self-calibration test.
In the technical scheme, four corners of the table body mounting surface 6 are respectively provided with four corresponding threaded holes, the double-shaft inertial measurement unit inclined mounting plate 3 is provided with four laser inertial measurement unit table body mounting surface mounting threaded holes 3.2 corresponding to the four threaded holes of the table body mounting surface 6, and the laser inertial measurement unit table body 4 and the double-shaft inertial measurement unit inclined mounting plate 3 are mounted through the four threaded holes of the table body mounting surface 6, the four laser inertial measurement unit table body mounting surface mounting threaded holes 3.2 and corresponding bolts. The design is used for ensuring the stable installation of the laser inertial measurement unit table body 4.
In the above technical scheme, the both ends of the double-shaft inertial measurement unit inclined mounting plate 3 are inclined connecting sections 3.3, the inclined connecting section 3.3 at one end of the double-shaft inertial measurement unit inclined mounting plate 3 is fixedly connected to the top end of the vertical fixing plate 2, and the inclined connecting section 3.3 at the other end of the double-shaft inertial measurement unit inclined mounting plate 3 is fixedly connected to the other end of the horizontal bottom plate 1. The design form can facilitate the inclined mounting plate 3 of the double-shaft inertial measurement unit switching device to form a preset angle with the horizontal bottom plate 1.
The utility model discloses an installation step does: fixing a horizontal bottom plate 1, a vertical fixing plate 2 and a double-shaft inertial measurement unit inclined mounting plate 3 according to the scheme, ensuring that an included angle between the horizontal bottom plate 1 and the double-shaft inertial measurement unit inclined mounting plate 3 is 37 degrees, fixing the horizontal bottom plate 1 on an inner frame horizontal table top of a three-shaft rotary table of a laser inertial measurement unit temperature compensation testing system, and finally assembling a table body mounting surface 6 of a laser inertial measurement unit table body 4 on the double-shaft inertial measurement unit inclined mounting plate 3 through a laser inertial measurement unit table body mounting surface mounting threaded hole 3.2, wherein the laser inertial measurement unit table body 4 is positioned in a laser inertial measurement unit table body assembling through hole 3.1. The switching installation of the laser inertial measurement unit table body 4 can be realized, and the self-calibration test of the laser inertial measurement unit can be started at the moment.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (7)
1. The utility model provides a laser is used to group temperature compensation system test switching device which characterized in that: the device comprises a horizontal bottom plate (1), a vertical fixing plate (2) and a double-shaft inertial measurement unit inclined mounting plate (3), wherein the bottom end of the vertical fixing plate (2) is fixedly connected with one end of the horizontal bottom plate (1), the top end of the vertical fixing plate (2) is fixedly connected with one end of the double-shaft inertial measurement unit inclined mounting plate (3), the other end of the double-shaft inertial measurement unit inclined mounting plate (3) is fixedly connected with the other end of the horizontal bottom plate (1), a laser inertial measurement unit platform body mounting through hole (3.1) is formed in the double-shaft inertial measurement unit inclined mounting plate (3), a laser inertial measurement unit platform body mounting surface mounting threaded hole (3.2) is further formed in the double-shaft inertial measurement unit inclined mounting plate (3), a platform body mounting surface (6) of a laser inertial measurement unit platform body (4) is mounted on the double-shaft inertial measurement unit inclined mounting plate (3) through the laser inertial measurement unit platform body mounting surface mounting threaded hole (3.2), and the laser inertial measurement unit platform body (4) is positioned in the laser inertial measurement unit platform body assembling through hole (3.1), the horizontal bottom plate (1) is used for being fixed on the horizontal table surface of the inner frame of the three-axis rotating table of the laser inertial measurement unit temperature compensation testing system, and the included angle between the horizontal bottom plate (1) and the inclined mounting plate (3) of the double-axis inertial measurement unit switching device can ensure that all gyro component mounting surfaces (5) of the laser inertial measurement unit platform body (4) mounted on the inclined mounting plate (3) of the double-axis inertial measurement unit are parallel or perpendicular to the horizontal table surface of the inner frame of the three-axis rotating table of the laser inertial measurement unit temperature compensation testing system.
2. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: the included angle between the horizontal bottom plate (1) and the double-shaft inertial measurement unit switching device inclined mounting plate (3) is 37 degrees.
3. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: the horizontal bottom plate (1) is provided with a circular lightening hole (1.1).
4. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: the vertical fixing plate (2) is provided with two rectangular lightening holes (2.1) which are arranged side by side.
5. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: the side walls of the horizontal bottom plate (1), the vertical fixing plate (2) and the double-shaft inertial measurement unit switching device inclined mounting plate (3) are provided with a plurality of calibration transition holes (7) which are uniformly distributed.
6. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: four corners of the table body mounting surface (6) are respectively provided with four corresponding threaded holes, four laser inertial set table body mounting surface mounting threaded holes (3.2) corresponding to the four threaded holes of the table body mounting surface (6) are formed in the biaxial inertial set switching device inclined mounting plate (3), and the laser inertial set table body (4) and the biaxial inertial set switching device inclined mounting plate (3) are mounted through the four threaded holes of the table body mounting surface (6), the four laser inertial set table body mounting surface mounting threaded holes (3.2) and corresponding bolts.
7. The laser inertial measurement unit temperature compensation system test switching device according to claim 1, characterized in that: the both ends of a double-shaft inertial measurement unit inclined mounting plate (3) are inclined connecting sections (3.3), the inclined connecting section (3.3) at one end of the top end fixed connection double-shaft inertial measurement unit inclined mounting plate (3) of a vertical fixing plate (2) and the other end of the inclined connecting section (3.3) at the other end of the double-shaft inertial measurement unit inclined mounting plate (3) are fixedly connected with a horizontal bottom plate (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921270649.XU CN210268680U (en) | 2019-08-07 | 2019-08-07 | Test switching device for laser inertial measurement unit temperature compensation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921270649.XU CN210268680U (en) | 2019-08-07 | 2019-08-07 | Test switching device for laser inertial measurement unit temperature compensation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577523A (en) * | 2020-12-12 | 2021-03-30 | 江西洪都航空工业股份有限公司 | Adjustable inertial navigation test switching tool and adjusting and mounting method |
| CN112706948A (en) * | 2021-03-26 | 2021-04-27 | 北京中科宇航技术有限公司 | Inertial measurement unit support and inertial measurement unit assembly |
| CN113465595A (en) * | 2021-06-25 | 2021-10-01 | 湖北三江航天万峰科技发展有限公司 | Inertial positioning and orienting equipment inertial unit parameter temperature compensation calibration method |
-
2019
- 2019-08-07 CN CN201921270649.XU patent/CN210268680U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577523A (en) * | 2020-12-12 | 2021-03-30 | 江西洪都航空工业股份有限公司 | Adjustable inertial navigation test switching tool and adjusting and mounting method |
| CN112577523B (en) * | 2020-12-12 | 2023-10-03 | 江西洪都航空工业股份有限公司 | Adjustable inertial navigation test switching tool and adjusting and installing method |
| CN112706948A (en) * | 2021-03-26 | 2021-04-27 | 北京中科宇航技术有限公司 | Inertial measurement unit support and inertial measurement unit assembly |
| CN112706948B (en) * | 2021-03-26 | 2021-06-15 | 北京中科宇航技术有限公司 | Inertial measurement unit support and inertial measurement unit assembly |
| CN113465595A (en) * | 2021-06-25 | 2021-10-01 | 湖北三江航天万峰科技发展有限公司 | Inertial positioning and orienting equipment inertial unit parameter temperature compensation calibration method |
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