CN114509092B - Double-shaft rotary table for inertial navigation product test - Google Patents
Double-shaft rotary table for inertial navigation product test Download PDFInfo
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- CN114509092B CN114509092B CN202210133763.8A CN202210133763A CN114509092B CN 114509092 B CN114509092 B CN 114509092B CN 202210133763 A CN202210133763 A CN 202210133763A CN 114509092 B CN114509092 B CN 114509092B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
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Abstract
The invention discloses a double-shaft turntable for inertial navigation product testing, which belongs to the technical field of sensor calibration and comprises a base, a support frame fixed on the base, a turntable fixed on the support frame and an internal adapter box positioned between the turntable and the base, wherein an L-shaped adapter wire is adopted between an internal adapter male plug and an internal adapter female plug for connection, so that the effective space between the turntable and the base can be reasonably utilized, the length of a connecting wire between the internal adapter male plug and the internal adapter female plug is reduced, the signal transmission interference generated by winding due to too much or too long connecting wire is avoided, in addition, the internal connecting wire is of a paper clip-like shape structure, the paper clip-like shape structure has certain strength, the internal connecting wire can be prevented from deforming in the sensor testing process, the mutual interference of transmission signals generated by large position change due to deformation of the internal connecting wire can be avoided, and further, the automatic calibration precision of the inertial navigation sensor can be improved.
Description
Technical Field
The invention relates to the technical field of sensor calibration, in particular to a double-shaft rotary table for testing an inertial navigation product.
Background
The process of scaling the sensor with a standard instrument is called calibration. In particular to a piezoelectric pressure sensor, a series of processes of generating a standard force with known magnitude by using a special calibration device such as a piston manometer to act on the sensor, outputting a corresponding charge signal by the sensor, measuring the charge signal by using a standard detection device with known precision to obtain the magnitude of the charge signal, and obtaining a set of input-output relations, are calibration processes of the piezoelectric pressure sensor. The three-axis turntable is widely applied to calibration of various direction sensors, and the stability and repeated positioning precision of the structure of the three-axis turntable have decisive influence on the measurement precision of the sensors.
The double-shaft turntable is widely applied to information acquisition of various inertial navigation products, and the stability and the positioning precision of the structure of the double-shaft turntable have important influence on the data acquisition and the calibration precision of the inertial navigation products. The traditional double-shaft rotary table equipment can only measure 1 piece at the same time, the measurement quantity is small, and the equipment is manually operated. And in the testing period, the whole process of manually monitoring data in the field and manually operating and controlling equipment in the field is required, so that the working time is long, the experience and physical strength of people are greatly tested, and the technical level and the endurance of an operator are also greatly tested.
Disclosure of Invention
The invention provides a double-shaft rotary table for testing inertial navigation products, which can simultaneously test and calibrate a plurality of inertial navigation products on the premise of avoiding mutual influence, has a simple and reliable fixing mode of the inertial navigation products, high testing efficiency and high testing and calibrating precision, and reduces the influence of the reliability of a connecting wire on the calibrating precision.
The specific technical scheme provided by the invention is as follows:
the invention provides a double-shaft turntable for testing inertial navigation products, which comprises a base, a support frame fixed on the base, a turntable fixed on the support frame, and an internal adapter box positioned between the turntable and the base, wherein, the internal adapter box is provided with an internal adapter male plug and an external adapter female plug, the turntable is provided with a mounting hole of the inertial navigation sensor to be tested and an internal adapter female plug, the internal adapter male plug and the internal adapter female plug are connected by an L-shaped adapter cable, the internal adapter female plug is connected with the inertial navigation sensor to be tested by adopting an internal connecting wire, and the two ends of the internal connecting wire are respectively provided with a switching male plug and a switching female plug which are mutually matched with the internal switching female plug and a male plug on the inertial navigation sensor to be tested, and the internal connecting wire is of a clip-like appearance structure.
Optionally, the internal connection line include with the female plug of inside switching mutual grafting, with the female plug of the switching of the internal test of being used for the examination to be used for the sensor mutual grafting, set gradually the female plug of switching with horizontal connecting line, first arc connecting wire, first vertical connecting wire, second arc connecting wire and the vertical connecting wire of second between the male plug of switching, the horizontal connecting wire first arc connecting wire first vertical connecting wire the second arc connecting wire with constitute a class paper clip appearance structure after the vertical connecting wire interconnect of second.
Optionally, a plurality of rows of the inertial navigation sensor mounting holes to be tested and the internal adapting female plug are longitudinally and orderly arranged on the turntable, the internal adapting female plug is located on the left side of the inertial navigation sensor mounting holes to be tested, and two adjacent rows of the inertial navigation sensor mounting holes to be tested are staggered.
Optionally, 5 rows of the inertial navigation sensor mounting holes to be tested and the internal adapting female plugs are arranged on the turntable, the inertial navigation sensor mounting holes to be tested are longitudinally and neatly arranged, and the inertial navigation sensor mounting holes to be tested are transversely and mutually inserted and staggered.
Optionally, the transverse distance between two adjacent rows of the inertial navigation sensor mounting holes to be tested is in positive correlation with the distance from the center of the turntable.
Optionally, the density of the to-be-tested inertial navigation sensor mounting holes decreases gradually along the radial direction of the turntable, and the density of the to-be-tested inertial navigation sensor mounting holes is set at the center of the turntable to be the maximum.
Optionally, the supporting frame is fixed on the base through bolts, the rotary table is fixed on the supporting frame through bolts, and a plurality of supporting frames are arranged between the rotary table and the base.
Optionally, the inertial navigation sensor to be tested is mounted in the inertial navigation sensor mounting hole to be tested by using a bolt, the adapting female plug is arranged along the horizontal direction, and the adapting male plug is arranged along the vertical direction.
Optionally, 24 internal adapting male plugs and 2 external adapting female plugs are arranged on the internal adapting box, one of the 2 external adapting female plugs is used for connecting an external power supply to supply power, and the other external adapting box is used for connecting an external adapting box to transmit acquired and received inertial navigation sensor data to be tested to the external adapting box.
The invention has the following beneficial effects:
the embodiment of the invention provides a double-shaft turntable for testing an inertial navigation product, which comprises a base, a support frame fixed on the base, a turntable fixed on the support frame, and an internal adapter box positioned between the turntable and the base, wherein an internal adapter male plug and an external adapter female plug are arranged on the internal adapter box, a mounting hole of an inertial navigation sensor to be tested and an internal adapter female plug are arranged on the turntable, the internal adapter male plug and the internal adapter female plug are connected by adopting an L-shaped adapter wire, so that the effective space between the turntable and the base can be reasonably utilized, the length of a connecting wire between the internal adapter male plug and the internal adapter female plug is reduced, the signal transmission interference generated by winding due to excessive or overlong connecting wires is avoided, the internal adapter female plug and the inertial navigation sensor to be tested are connected by adopting an internal connecting wire, and the internal connecting wire is of a paperclip-like appearance structure, the paper clip-like appearance structure has certain strength, so that the deformation of the internal connecting wire in the sensor testing process can be prevented, the form of the internal connecting wire can be kept from changing along with the sensor testing process, the mutual interference of transmission signals generated by the fact that the position of the internal connecting wire is changed greatly due to the deformation of the internal connecting wire can be avoided, and the automatic calibration precision of the inertial navigation sensor can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an isometric structural view of a biaxial turntable for inertial navigation product testing according to an embodiment of the present invention;
FIG. 2 is a schematic front view illustrating a dual-axis turntable for testing inertial navigation products according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a dual-axis turntable for inertial navigation product testing according to an embodiment of the present invention;
FIG. 4 is a schematic side view of a dual-axis turntable for inertial navigation product testing according to an embodiment of the present invention;
FIG. 5 is an enlarged partial view of section I of FIG. 4 according to an embodiment of the present invention;
fig. 6 is a schematic sectional view taken along the direction a-a in fig. 2 according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A dual-axis turntable for inertial navigation product testing according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 6.
Referring to fig. 1, 2, 3, 4, 5 and 6, a dual-axis turntable for inertial navigation product testing according to an embodiment of the present invention includes a base 1, a supporting frame 2 fixed on the base 1, a turntable 3 fixed on the supporting frame 2, and an internal adapter 4 located between the turntable 3 and the base 1, wherein the internal adapter 4 is provided with an internal adapter male plug 5 and an external adapter female plug 6, the turntable 3 is provided with an inertial navigation sensor mounting hole 7 to be tested and an internal adapter female plug 8, the internal adapter male plug 5 and the internal adapter female plug 8 are connected by an L-shaped adapter cable 9, the internal adapter female plug 8 and the inertial navigation sensor 10 to be tested are connected by an internal connecting cable 11, two ends of the internal connecting cable 11 are respectively provided with an adapter male plug 12 and an adapter female plug 13 which are matched with the male plug on the internal adapter female plug 8 and the inertial navigation sensor 10 to be tested, the internal connecting line 11 is in the shape of a paperclip-like structure.
Specifically, referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the internal connection line 11 includes a male adaptor plug 12 mutually inserted into the internal female adaptor plug 8, a female adaptor plug 13 mutually inserted into the inertial navigation sensor 10 to be tested, a horizontal connection line 14 sequentially disposed between the female adaptor plug 13 and the male adaptor plug 12, a first arc-shaped connection line 15, a first vertical connection line 16, a second arc-shaped connection line 17, and a second vertical connection line 18, and the horizontal connection line 14, the first arc-shaped connection line 15, the first vertical connection line 16, the second arc-shaped connection line 17, and the second vertical connection line 18 are connected to form a clip-like appearance structure.
The adapting female plug 13 and the adapting male plug 12 of the internal connecting line 11 of the double-shaft turntable for testing the inertial navigation product adopt a connecting line with a paperclip-like appearance structure formed by mutually connecting a horizontal connecting line 14, a first arc-shaped connecting line 15, a first vertical connecting line 16, a second arc-shaped connecting line 17 and a second vertical connecting line 18, and the connecting line between the adapting female plug 13 and the adapting male plug 12 is directly and linearly connected relatively, not only has certain resilience strength, but also has certain stretch-proofing capability, the connecting wire with the structure can ensure that the internal connecting wire 11 can be used in the rotation test process of the inertial navigation product, the test accuracy is prevented from being influenced by signal transmission interference caused by winding or contact of test wires of different inertial navigation sensors 10 to be tested due to the fact that the connecting wires are greatly deformed due to the action of centrifugal force or other steering forces.
Referring to fig. 1, 2, 3, 4, 5 and 6, a plurality of rows of the inertial navigation sensor mounting holes 7 to be tested and the internal adapting female plugs 8 are longitudinally and orderly arranged on the turntable 3, the internal adapting female plugs 8 are all positioned at the left side of the inertial navigation sensor mounting holes 7 to be tested, the two adjacent rows of the inertial navigation sensor mounting holes 7 to be tested are arranged in a staggered manner and are matched with the same side of the inertial navigation sensor mounting holes 7 to be tested, which are formed by arranging all the internal adapting female plugs 8, the position of the internal connecting line 11 can be reasonably planned, and the influence on the testing precision caused by the interference of signal transmission due to the winding or contact of the testing lines of different inertial navigation sensors 10 to be tested, which is caused by the larger deformation of the connecting line due to the action of centrifugal force or other steering force, can be avoided again. The two adjacent rows of to-be-tested inertial navigation sensor mounting holes 7 are arranged in a staggered mode and are matched with the same side of the to-be-tested inertial navigation sensor mounting holes 7 formed in all the internal adapting female plugs 8, not only can more to-be-tested inertial navigation sensor mounting holes 7 be arranged on the rotary table 3 as far as possible, but also the limited space of the rotary table 3 can be reasonably utilized to the maximum extent, and the problem that the transverse distance between the adjacent internal connecting wires 11 is too small to cause winding or contact after mutual deformation to influence the testing calibration precision of the sensor is avoided.
Referring to fig. 1, 2, 3, 4, 5 and 6, 5 rows of inertial navigation sensor mounting holes 7 to be tested and internal adapting female plugs 8 are arranged on the turntable 3, the inertial navigation sensor mounting holes 7 to be tested are longitudinally and orderly arranged, and the inertial navigation sensor mounting holes 7 to be tested are transversely and mutually inserted and staggered. The transverse distance between two adjacent rows of to-be-tested inertial sensor mounting holes 7 is in positive correlation with the distance from the center of the rotary table 3, namely the arrangement density of the to-be-tested inertial sensor mounting holes 7 along the radial direction of the rotary table 3 is gradually reduced, and the density of the to-be-tested inertial sensor mounting holes 7 arranged in the center of the rotary table 3 is the maximum. In the process of testing the inertial navigation sensor, the rotary table 3 rotates along with the testing device, in the process of rotating the rotary table 3, the centrifugal force or the centripetal force at the central part of the rotary table 3 is smaller, namely the external force applied to the internal connecting wire 11 which is closer to the central part of the rotary table 3 is smaller in the process of rotating the internal connecting wire 11 along with the rotary table 3, so that the generated deformation is smaller, and the reserved space required by the adjacent internal connecting wire 11 is smaller, therefore, in order to maximally and reasonably utilize the limited space of the rotary table 3, in combination with the testing requirements and the testing scheme of an inertial navigation product, the same side of the to-be-tested inertial navigation sensor mounting holes 7 arranged on all internal adapting female plugs 8 is arranged in a staggered manner, and the arrangement density of the to-be-tested inertial navigation sensor mounting holes 7 along the radial direction of the rotary table 3 is gradually reduced by matching with the testing requirements and the testing scheme of the inertial navigation product, the signal transmission interference between adjacent internal connecting wires can be avoided as much as possible, and the space of the rotary disc can be reasonably utilized to the maximum extent to test a plurality of inertial navigation sensors as much as possible at a time.
Referring to fig. 1, 2, 3, 4, 5 and 6, a support frame 2 is fixed on a base 1 by bolts, a turntable 3 is fixed on the support frame 2 by bolts, and a plurality of support frames 2 are arranged between the turntable 3 and the base 1. The inertial navigation sensor to be tested 10 is mounted in the inertial navigation sensor mounting hole to be tested 7 through bolts, the adapting female plug 13 is arranged along the horizontal direction, and the adapting male plug 12 is arranged along the vertical direction. Be provided with 24 inside switching male plugs 5 and 2 outside switching female plugs 6 on inside adapter box 4, one in 2 outside switching female plugs 6 is used for connecting external power source and realizes supplying power, and another is used for connecting outside adapter box and realizes being used to lead sensor data transfer for the outside adapter box with the awaiting measuring of gathering and receiving.
The embodiment of the invention provides a double-shaft turntable for testing an inertial navigation product, which comprises a base, a support frame fixed on the base, a turntable fixed on the support frame, and an internal adapter box positioned between the turntable and the base, wherein an internal adapter male plug and an external adapter female plug are arranged on the internal adapter box, a mounting hole of an inertial navigation sensor to be tested and an internal adapter female plug are arranged on the turntable, the internal adapter male plug and the internal adapter female plug are connected by adopting an L-shaped adapter wire, so that the effective space between the turntable and the base can be reasonably utilized, the length of a connecting wire between the internal adapter male plug and the internal adapter female plug is reduced, the signal transmission interference generated by winding due to excessive or overlong connecting wires is avoided, the internal adapter female plug and the inertial navigation sensor to be tested are connected by adopting an internal connecting wire, and the internal connecting wire is of a paperclip-like appearance structure, the paper clip-like appearance structure has certain strength, so that the deformation of the internal connecting wire in the sensor testing process can be prevented, the form of the internal connecting wire can be kept from changing along with the sensor testing process, the mutual interference of transmission signals generated by the fact that the position of the internal connecting wire is changed greatly due to the deformation of the internal connecting wire can be avoided, and the automatic calibration precision of the inertial navigation sensor can be improved.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (8)
1. The double-shaft rotary table for the inertial navigation product test is characterized by comprising a base, a support frame fixed on the base, a rotary table fixed on the support frame, and an internal adapter box positioned between the rotary table and the base, wherein an internal adapter male plug and an external adapter female plug are arranged on the internal adapter box, a mounting hole of an inertial navigation sensor to be tested and an internal adapter female plug are arranged on the rotary table, the internal adapter male plug and the internal adapter female plug are connected by adopting an L-shaped adapter wire, the internal adapter female plug and the inertial navigation sensor to be tested are connected by adopting an internal connecting wire, the adapter male plug and the adapter female plug which are matched with the internal adapter female plug and the male plug on the inertial navigation sensor to be tested are respectively arranged at two ends of the internal connecting wire, the internal connecting line is of a clip-like appearance structure; the internal connection line include with the female plug of inside switching mutual grafting, with the female plug of the switching of the internal connection of examination inertial navigation sensor mutual grafting, set gradually female plug of switching with horizontal connecting wire, first arc connecting wire, first vertical connecting wire, second arc connecting wire and the vertical connecting wire of second between the male plug of switching, horizontal connecting wire first arc connecting wire first vertical connecting wire second arc connecting wire with constitute a class paper clip appearance structure after the vertical connecting wire interconnect of second.
2. The dual-axis turntable for the inertial navigation product testing according to claim 1, wherein a plurality of rows of the inertial navigation sensor mounting holes to be tested and the internal adapting female plugs are longitudinally and orderly arranged on the turntable, the internal adapting female plugs are located on the left side of the inertial navigation sensor mounting holes to be tested, and the inertial navigation sensor mounting holes in two adjacent rows are arranged in a staggered manner.
3. The dual-axis turntable for the inertial navigation product testing according to claim 2, wherein 5 rows of the inertial navigation sensor mounting holes to be tested and the internal adapting female plugs are arranged on the turntable, the inertial navigation sensor mounting holes to be tested are longitudinally and orderly arranged, and the inertial navigation sensor mounting holes to be tested are transversely and mutually inserted and staggered.
4. The dual-axis turntable for the inertial navigation product test according to claim 3, wherein the transverse distance between two adjacent rows of the mounting holes of the inertial navigation sensor to be tested is in positive correlation with the distance from the center of the turntable.
5. The dual-axis turntable for the inertial navigation product testing according to claim 4, wherein the density of the mounting holes of the inertial navigation sensor to be tested along the radial direction of the turntable is gradually reduced, and the density of the mounting holes of the inertial navigation sensor to be tested at the center of the turntable is the maximum.
6. The double-shaft turntable for the inertial navigation product test according to claim 1 or 4, wherein the support frame is fixed on the base through bolts, the turntable is fixed on the support frame through bolts, and a plurality of support frames are arranged between the turntable and the base.
7. The dual-axis turntable for the inertial navigation product test according to claim 2, wherein the inertial navigation sensor to be tested is mounted in the inertial navigation sensor mounting hole by using a bolt, the adapting female plug is arranged in a horizontal direction, and the adapting male plug is arranged in a vertical direction.
8. The dual-axis turntable for the inertial navigation product test according to claim 1 or 3, wherein 24 internal adapting male plugs and 2 external adapting female plugs are arranged on the internal adapter box, one of the 2 external adapting female plugs is used for being connected with an external power supply to supply power, and the other external adapting female plug is used for being connected with an external adapter box to transmit acquired and received inertial navigation sensor data to be tested to the external adapter box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210133763.8A CN114509092B (en) | 2022-02-14 | 2022-02-14 | Double-shaft rotary table for inertial navigation product test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210133763.8A CN114509092B (en) | 2022-02-14 | 2022-02-14 | Double-shaft rotary table for inertial navigation product test |
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| CN114509092A CN114509092A (en) | 2022-05-17 |
| CN114509092B true CN114509092B (en) | 2022-09-16 |
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| 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 |
| CN214372521U (en) * | 2021-04-08 | 2021-10-08 | 重庆天箭惯性科技股份有限公司 | Combined inertial navigation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9857198B2 (en) * | 2015-02-04 | 2018-01-02 | Bae Systems Information And Electronic Systems Integration Inc. | Apparatus and method for inertial sensor calibration |
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- 2022-02-14 CN CN202210133763.8A patent/CN114509092B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207171971U (en) * | 2017-09-04 | 2018-04-03 | 江西洪都航空工业集团有限责任公司 | A kind of inertial navigation location and installation support |
| CN108838997A (en) * | 2018-07-25 | 2018-11-20 | 安徽信息工程学院 | Novel wooden robot |
| CN209249691U (en) * | 2018-12-14 | 2019-08-13 | 比亚迪股份有限公司 | A kind of mobile terminal antenna and mobile terminal |
| CN111854739A (en) * | 2020-02-18 | 2020-10-30 | 重庆市皓颖科技发展有限公司 | Small-size high-precision inertial measurement unit |
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| 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 |
| CN214372521U (en) * | 2021-04-08 | 2021-10-08 | 重庆天箭惯性科技股份有限公司 | Combined inertial navigation device |
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