CN108426523A - A kind of precision reference transfer method - Google Patents
A kind of precision reference transfer method Download PDFInfo
- Publication number
- CN108426523A CN108426523A CN201810175681.3A CN201810175681A CN108426523A CN 108426523 A CN108426523 A CN 108426523A CN 201810175681 A CN201810175681 A CN 201810175681A CN 108426523 A CN108426523 A CN 108426523A
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- Prior art keywords
- precision reference
- spacecraft
- benchmark
- accurate measurement
- transfer method
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- 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.)
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Classifications
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- 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
Abstract
The present invention relates to a kind of precision reference transfer methods, including：S1. according to the design scheme of spacecraft cabin, the transmission channel for being connected to the spacecraft module inside and outside is obtained；S2. according to the benchmark transfer organization of the first precision reference and the transmission channel designed for shifting first precision reference in the spacecraft module body；S3. accurate measurement light path is built on first precision reference, the benchmark transfer organization and the spacecraft cabin based on the transmission channel.The first precision reference is set to be directly transferred to the accessible position of accurate measurement light path of the prism square of side wall, it can be in the state that the side wall of spacecraft cabin and outsole close up, the first precision reference is directly set to carry out relativeness accurate measurement with the structure benchmark outside nacelle, it ensure that the accurate of the method accurate measurement result of the present invention, avoid the error accumulation in indirect measure.
Description
Technical field
The present invention relates to a kind of precision reference transfer methods more particularly to a kind of precision reference for spacecraft cabin to turn
Shifting method.
Background technology
It is overall to the assembly precision of spacecraft main structure, control system and propulsion system during manned spacecraft general assembly
The installation accuracy of the installation accuracy of equipment and some other equipment has index request, needs to carry out precision measure or precision tune
It surveys, is referred to as accurate measurement.
Currently, the method that manned spacecraft general assembly accurate measurement mainly uses contactless large-scale metrology system (LDMS).This
Kind accurate measurement method is that the prism square for the benchmark demarcated is installed on equipment under test, and the orthogonal surface of prism square represents equipment
Setting angle, the central point of prism square represents the installation site of equipment.After being calibrated using two electronic theodolites, accurate measurement is formed
Coordinate system by collimation, is mutually taken aim at and is aimed at, can obtain the pitch angle and horizontal angle of two theodolites in accurate measurement coordinate system, then lead to
It crosses computer and completes conversion, obtain the relative angular relationship between benchmark prism square and distance.
Since the fine system of electronic theodolite composition is optical system, thus during accurate measurement, reference mirror is tested and stands
Light path between Fang Jingyu electronic theodolite camera lenses must be unobstructed.However, manned spacecraft is enclosed construction, the knot of return capsule
Structure reference mirror is installed in out of my cabin, and gimbal and gyro installation are in cabin.Therefore, in return capsule side wall outsole closed configuration
Under, the structure reference mirror on return capsule side wall is separated with gyro reference mirror by nacelle, and the light path of fine system is blocked, Wu Fazhi
Connect accurate measurement.In the prior art using the method that measures indirectly to wall construction benchmark on the upside of return capsule and gyro position reference in cabin into
Row measures, and can not achieve direct accurate measurement between gyro position reference and side wall construction benchmark, introduces Reference Transforming error.Meanwhile
Outsole rigidity is relatively low, and under the influence of the factors such as equipment load, leak detection inflation, different development stage outsole deflections is not
Together, therefore the error that further results in indirect measurement process becomes larger.
Invention content
The purpose of the present invention is to provide a kind of precision reference transfer method, solve to survey between the benchmark of spacecraft module inside and outside
Measure the big problem of error.
For achieving the above object, the present invention provides a kind of precision reference transfer method, including：
S1. according to the design scheme of spacecraft cabin, the transmission channel for being connected to the spacecraft module inside and outside is obtained；
S2. according in the spacecraft module body the first precision reference and the transmission channel designed for shifting described the
The benchmark transfer organization of one precision reference；
S3. the transmission channel is based in first precision reference, the benchmark transfer organization and the spacecraft module
Accurate measurement light path is built on body.
According to an aspect of the present invention, it according to the design scheme of spacecraft cabin, obtains and is connected to the spacecraft cabin
In the step of inside and outside transmission channel, the opening for penetrating through the spacecraft cabin is obtained according to the design scheme, based on described
Opening obtains the transmission channel for being connected to the spacecraft module inside and outside.
According to an aspect of the present invention, the opening is the antenna installing port or porthole on the spacecraft cabin
Mouthful.
According to an aspect of the present invention, the design scheme includes the design drawing of the spacecraft cabin and three-dimensional mould
Type.
According to an aspect of the present invention, the benchmark transfer organization removably with first in the spacecraft module body
Precision reference is connected with each other.
According to an aspect of the present invention, the benchmark transfer organization includes upright bar and pedestal；
The benchmark transfer organization is connected with each other by the pedestal and first precision reference；
The upright bar is for building the accurate measurement light path.
According to an aspect of the present invention, the reference identification for home position is provided in the upright bar.
According to an aspect of the present invention, the reference identification is scale or mounting hole.
According to an aspect of the present invention, the accurate measurement light path is built using prism square.
A kind of scheme according to the present invention is obtained by design scheme combining and connects opening for inside and outside in the nacelle of spacecraft
Mouthful, and accurate measurement is established by benchmark transfer organization in the first precision reference position reference for installation transfer organization inside nacelle
Light path, to achieve the purpose that directly to shift benchmark.Measuring apparatus can be to first inside nacelle by the opening in nacelle
Precision reference measures.By above-mentioned setting, the first precision reference is made to be directly transferred to the accurate measurement light path of the prism square of side wall
Accessible position can directly make the first precision reference and cabin in the state that the side wall of spacecraft cabin and outsole close up
External structure benchmark carries out relativeness accurate measurement, ensure that the accurate of the method accurate measurement result of the present invention, avoids indirect survey
Error accumulation in amount mode.
A kind of scheme according to the present invention, by shifting the first precision reference, shape is being drawn high and closed up to side wall with outsole
When state, measuring apparatus can measure the first precision reference, therefore, can accurately obtain side wall and when outsole is closed up, and
The offset variation amount of one precision reference, to ensure that the accurate of accurate measurement result.Before and after if side wall and outsole are closed up, in outsole
Relatively large deviation occurs for position relationship between prism square, and precision reference transfer method of the invention can be used by the first precision reference in side
Under wall and outsole closed configuration, the accurate measurement light path on nacelle external structure benchmark is directly transferred to up to place, compares side wall and outsole
Close up relative accuracy of the structure benchmark with respect to the first precision reference of front and back outsole, then is included in structure benchmark from outsole to side wall
During prism square shifts, structure benchmark transfer precision is made to improve.
Description of the drawings
Fig. 1 schematically shows a kind of step block diagram of the precision reference transfer method of embodiment according to the present invention；
Fig. 2 schematically shows a kind of structure chart of the spacecraft cabin of embodiment according to the present invention；
Fig. 3 schematically shows a kind of structure of the benchmark transfer organization of the spacecraft cabin of embodiment according to the present invention
Figure；
Fig. 4 schematically shows that a kind of spacecraft cabin of embodiment according to the present invention is drawn high and directly shifts under state
The structure chart of one precision reference；
Fig. 5 is schematically shown directly shifts under the spacecraft cabin closed configuration of embodiment according to the present invention a kind of
The structure chart of one precision reference；
Fig. 6 schematically shows that a kind of spacecraft cabin of embodiment according to the present invention draws high big bottom structure base under state
The structure chart of quasi- error measure；
Fig. 7 schematically shows big bottom structure base under the spacecraft cabin closed configuration of embodiment according to the present invention a kind of
The structure chart of quasi- error measure.
Specific implementation mode
It, below will be to embodiment in order to illustrate more clearly of embodiment of the present invention or technical solution in the prior art
Needed in attached drawing be briefly described.It should be evident that the accompanying drawings in the following description is only some of the present invention
Embodiment for those of ordinary skills without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
When being described for embodiments of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
" rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", the orientation or positional relationship expressed by "outside" are to be based on phase
Orientation or positional relationship shown in the drawings is closed, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore above-mentioned term cannot
It is interpreted as limitation of the present invention.
The present invention is described in detail with reference to the accompanying drawings and detailed description, embodiment cannot go to live in the household of one's in-laws on getting married one by one herein
It states, but therefore embodiments of the present invention are not defined in following implementation.
As shown in Figure 1, a kind of embodiment according to the present invention, a kind of precision reference transfer method of the invention, including：
S1. according to the design scheme of spacecraft cabin, the transmission channel of connection spacecraft module inside and outside is obtained；
S2. according in spacecraft module body the first precision reference and transmission channel designed for first precision reference of transfer
Benchmark transfer organization；
S3. accurate measurement light path is built on the first precision reference, benchmark transfer organization and spacecraft cabin based on transmission channel.
A kind of embodiment according to the present invention, in step S1, the design scheme of spacecraft cabin includes spacecraft cabin
Design drawing and threedimensional model.In the present embodiment, shown in Figure 2, by design drawing and threedimensional model, obtain
The nacelle of spacecraft penetrates through the opening 3 of spacecraft cabin under 2 closed configuration of side wall 1 and outsole.Meanwhile in conjunction with spacecraft module
The design drawing of body obtains the transmission channel for being connected to spacecraft module inside and outside with opening 3 of the threedimensional model based on acquisition, to protect
Card light can be propagated by the transmission channel of acquisition.Referring to Fig. 2, in the present embodiment, opening 3 is spacecraft cabin
On antenna installing port 3a or side of a ship window 3b.Wherein, antenna installing port 3a is located at the I quadrants of the nacelle of spacecraft, side of a ship window
3b is respectively in II, IV quadrant of the nacelle of spacecraft.
A kind of embodiment according to the present invention in step S2, passes through first in the clear spacecraft module body of design scheme
Precision reference (for example, gyro position reference), according in spacecraft module body the first precision reference and abovementioned steps in obtain
Transmission channel formulates the principle of transfer of benchmark transfer organization, and is shifted and tied according to the principle of transfer detailed design benchmark of formulation
Structure.Referring to Fig. 3, in the present embodiment, benchmark transfer organization 4 includes upright bar 41 and pedestal 42.Between upright bar 41 and pedestal 42
What can be integrated may be to weld or connected by connector.In the present embodiment, benchmark transfer organization 4 passes through
Pedestal 42 and the first precision reference are detachably connected, and upright bar 41 is for building accurate measurement light path.In the present embodiment, upright bar 41
It is upper that there is reference identification, accurate measurement light path can accurately be built by reference to mark, improve the benchmark transfer method of the present invention
Measurement accuracy.In the present embodiment, reference identification can be scale or mounting hole.In the present embodiment, accurate measurement light is built
Road is built using prism square, and prism square can be installed accurately and quickly by the reference identification in upright bar 41, ensure that accurate measurement
Light path build process it is fast and convenient, improve and build efficiency.
A kind of embodiment according to the present invention, in step S3, when benchmark transfer organization is installed on the first precision reference
Later, the accurate measurement built accurate measurement light path on the first precision reference, benchmark transfer organization and spacecraft cabin respectively, and built
Light path can carry out light propagation by transmission channel in abovementioned steps.
For the precision reference transfer method that the present invention is further explained, the present invention is described in detail by way of example.
Embodiment one：The first precision reference is directly shifted under closed configuration.
As shown in figure 4, under state of drawing high, respectively on the first precision reference, benchmark transfer organization 4 and spacecraft cabin
Installation dress prism square.The transmission light path of connection spacecraft module inside and outside is made up of the prism square of installation, what measuring device was sent out
Light can carry out accurate measurement by transmitting light path to the first precision reference, to realize the transfer of the first precision reference.At this
In embodiment, transmission channel is built using the antenna installing port 3a and/or II, IV the quadrant side of a ship window 3b of I quadrants.At this
In embodiment, it is connected with each other by pedestal 42 and the first precision reference, benchmark transfer organization 4 is installed in outsole 2.
First prism square A is installed the position of one precision reference.One prism square is respectively installed in the top and the bottom of upright bar 41, wherein be located at
Lower section is the second prism square B, and it is third prism square C to be located above.In the structure benchmark installation of the side wall 1 of spacecraft cabin
4th prism square D.Under state of drawing high, pass through the relative position between measuring apparatus pair the first prism square A and the second prism square B
Relationship measures, and is surveyed by the relative position between measuring apparatus pair the second prism square B and third prism square C
Amount, third prism square C passes through the second prism square B and the first prism square A establishes position relationship to making, that is, realizes first directly
Precision reference is transferred to the position of third prism square C by the first prism square A.As shown in figure 5, by the side wall 1 of spacecraft cabin
After closing up with outsole 2, measuring device can be by the antenna installing port 3a and/or II, IV the quadrant side of a ship window 3b of I quadrants to third
Prism square C is collimated, to make between the first precision reference and structure benchmark out of my cabin by third prism square C and the 4th cube
Mirror D carries out precision measure.It completes to remove benchmark transfer organization and prism square after measuring.
Embodiment two：Return capsule is drawn high the big bottom structure fiducial error of closed configuration and is measured
As shown in fig. 6, under state of drawing high, installation fills prism square on benchmark transfer organization and spacecraft cabin respectively.
The transmission light path of connection spacecraft module inside and outside is made up of the prism square of installation, the light that measuring device is sent out is by transmitting light
Road can carry out accurate measurement to the first precision reference, to realize the transfer of the first precision reference.In the present embodiment, it transmits
Access is built using the antenna installing port 3a and/or II, IV the quadrant side of a ship window 3b of I quadrants.In the present embodiment, pass through
Pedestal 42 and the first precision reference are connected with each other, and benchmark transfer organization 4 is installed in outsole 2.In the top and the bottom of upright bar 41
Respectively one prism square of installation, wherein underlying is the second prism square B, and it is third prism square C to be located above.In space flight
The structure benchmark of the outsole 2 of device nacelle installs the 5th prism square E.Under state of drawing high, the 5th prism square E and third cube are measured
The relative accuracy of mirror C, then can be calculated by calculating the relative accuracy between the second prism square B and third prism square C
Draw high the relative accuracy between the 5th prism square E and the second prism square B under state.As shown in fig. 7, by the side wall of spacecraft cabin
After 1 closes up with outsole 2, measuring device can pass through the antenna installing port 3a and/or 3b pairs of II, IV quadrant side of a ship window of I quadrants the
The relative accuracy of three prism square C and the 5th prism square E measures, then by between the second prism square B and third prism square C
Relative accuracy calculates the relative accuracy of the 5th prism square E and the second prism square B.Compare the 5th prism square E and the second prism square B
Relative accuracy error in the case where drawing high, closing up two states.And by the 5th prism square E and the second prism square B in each angle
Variable quantity is included in structure benchmark from the prism square transfer process of 2 property side wall 1 of outsole.Complete benchmark transfer organization after measuring and
Prism square is removed.
According to the present invention, by the opening of connection inside and outside in the nacelle of design scheme combining acquisition spacecraft, and
In the first precision reference position reference for installation transfer organization inside nacelle, accurate measurement light path is established by benchmark transfer organization, to
Achieve the purpose that directly to shift benchmark.Measuring apparatus by nacelle opening can to the first precision reference inside nacelle into
Row measures.By above-mentioned setting, the first precision reference is made to be directly transferred to the accessible position of accurate measurement light path of the prism square of side wall 1
It sets, can directly make the first precision reference and the knot outside nacelle in the state that the side wall 1 of spacecraft cabin and outsole 2 close up
Structure benchmark carries out relativeness accurate measurement, ensure that the accurate of the method accurate measurement result of the present invention, avoids in indirect measure
Error accumulation.
According to the present invention, by shifting the first precision reference, side wall 1, when drawing high with closed configuration, is measured with outsole 2
Equipment can measure the first precision reference, therefore, can accurately obtain side wall 1 and when outsole 2 is closed up, the first precision base
Accurate offset variation amount.If side wall 1 and outsole 2 close up front and back, position relationship generation relatively large deviation between the prism square in outsole 2,
Precision reference transfer method of the invention can be used by the first precision reference under 2 closed configuration of side wall 1 and outsole, directly transfer
Accurate measurement light path on to nacelle external structure benchmark compares side wall 1 and outsole 2 closes up the structure benchmark phase of front and back outsole 2 up to place
It to the relative accuracy of the first precision reference, then is included in during structure benchmark shifts from outsole 2 to the prism square of side wall 1, makes
Structure benchmark shifts precision and improves.
The above is only enumerating for the concrete scheme of the present invention, for the equipment and structure of wherein not detailed description, is answered
When being interpreted as that the existing common apparatus in this field and universal method is taken to be practiced.
The foregoing is merely the schemes of the present invention, are not intended to restrict the invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of precision reference transfer method, including：
S1. according to the design scheme of spacecraft cabin, the transmission channel for being connected to the spacecraft module inside and outside is obtained；
S2. according in the spacecraft module body the first precision reference and the transmission channel designed for shift it is described first essence
Spend base reference of reference transfer organization；
S3. the transmission channel is based on first precision reference, the benchmark transfer organization and the spacecraft cabin
Build accurate measurement light path.
2. precision reference transfer method according to claim 1, which is characterized in that according to the design side of spacecraft cabin
In the step of case, acquisition is connected to the transmission channel of the spacecraft module inside and outside, obtained described in perforation according to the design scheme
The opening of spacecraft cabin obtains the transmission channel for being connected to the spacecraft module inside and outside based on the opening.
3. precision reference transfer method according to claim 2, which is characterized in that the opening is the spacecraft cabin
On antenna installing port or side of a ship window.
4. precision reference transfer method according to claim 3, which is characterized in that the design scheme includes the space flight
The design drawing and threedimensional model of device nacelle.
5. the precision reference transfer method according to one of Claims 1-4, which is characterized in that the benchmark transfer organization
Removably it is connected with each other with the first precision reference in the spacecraft module body.
6. precision reference transfer method according to claim 5, which is characterized in that the benchmark transfer organization includes upright bar
And pedestal；
The benchmark transfer organization is connected with each other by the pedestal and first precision reference；
The upright bar is for building the accurate measurement light path.
7. precision reference transfer method according to claim 6, which is characterized in that be provided in the upright bar for identifying
The reference identification of position.
8. precision reference transfer method according to claim 7, which is characterized in that the reference identification is scale or installation
Hole.
9. the precision reference transfer method according to claim 1 or 8, which is characterized in that the accurate measurement light path use cube
Mirror is built.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810175681.3A CN108426523A (en) | 2018-03-02 | 2018-03-02 | A kind of precision reference transfer method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810175681.3A CN108426523A (en) | 2018-03-02 | 2018-03-02 | A kind of precision reference transfer method |
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Family
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454277A (en) * | 2018-12-03 | 2019-03-12 | 江西洪都航空工业集团有限责任公司 | A kind of mechanical modification method of installation error for air data system sensor |
| CN110986899A (en) * | 2019-11-11 | 2020-04-10 | 上海航天设备制造总厂有限公司 | Precision measurement equipment and measurement method for electronic equipment with shielded closed cabin |
| CN111121713A (en) * | 2019-12-19 | 2020-05-08 | 上海航天设备制造总厂有限公司 | Method for establishing process reference for precision measurement of outer bearing barrel type structure cabin |
| CN111562124A (en) * | 2020-05-07 | 2020-08-21 | 上海宇航系统工程研究所 | Precision measurement method for storage tank flat-laying configuration spacecraft |
| CN113932782A (en) * | 2021-10-15 | 2022-01-14 | 北京卫星环境工程研究所 | Coordinate system establishing and reference transferring method suitable for spacecraft large-size cabin structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454277A (en) * | 2018-12-03 | 2019-03-12 | 江西洪都航空工业集团有限责任公司 | A kind of mechanical modification method of installation error for air data system sensor |
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| CN111121713B (en) * | 2019-12-19 | 2021-11-16 | 上海航天设备制造总厂有限公司 | Method for establishing process reference for precision measurement of outer bearing barrel type structure cabin |
| CN111562124A (en) * | 2020-05-07 | 2020-08-21 | 上海宇航系统工程研究所 | Precision measurement method for storage tank flat-laying configuration spacecraft |
| CN113932782A (en) * | 2021-10-15 | 2022-01-14 | 北京卫星环境工程研究所 | Coordinate system establishing and reference transferring method suitable for spacecraft large-size cabin structure |
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Application publication date: 20180821 |