CN114967022A - Auto-collimation dynamic target optical assembly and calibration method based on double theodolites - Google Patents
Auto-collimation dynamic target optical assembly and calibration method based on double theodolites Download PDFInfo
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- CN114967022A CN114967022A CN202210431438.XA CN202210431438A CN114967022A CN 114967022 A CN114967022 A CN 114967022A CN 202210431438 A CN202210431438 A CN 202210431438A CN 114967022 A CN114967022 A CN 114967022A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
- G02B7/004—Manual alignment, e.g. micromanipulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
An optical installation and calibration method of an auto-collimation dynamic target based on double theodolites belongs to the technical field of optical detection and installation and calibration, and particularly relates to an auto-collimation dynamic target structure and an installation and calibration scheme. The invention solves the problem of high difficulty in assembling and calibrating the existing self-alignment dynamic target. The invention adopts double theodolites to realize the assembling and calibrating process, firstly adopts a rotating optical axis and a test reference radioactive mirror to determine the principal and initial position and the posture of a first theodolite, then the first theodolite performs assembling and calibrating on a first light guide mirror, then adjusts the relative posture of a sub-optical path and the rotating optical axis, and finally performs assembling and calibrating on the posture of a second light guide mirror to complete the assembling and calibrating process of the sub-optical path and the light guide mirror. The invention realizes the quick assembly and calibration of the coaxiality of the dynamic target sub-optical path and the optical axis of the guide mirror, improves the assembly and calibration efficiency aiming at the dynamic target, and reduces the technical requirements on operators. The method is suitable for the technical field of manufacturing and debugging of the self-collimation dynamic target.
Description
Technical Field
The invention belongs to the technical field of optical detection and assembly and calibration, and particularly relates to an auto-collimation dynamic target sub-optical path and guide mirror assembly and calibration method based on double theodolites.
Background
Dynamic targets are commonly used for tracking performance testing of various tracking systems. The traditional dynamic target enables a detected tracking system to track a target by simulating the moving target at infinity, and then completes the detection of the tracking performance and system parameters of the detected tracking system by means of other measuring instruments, so that the detection process is complicated. Different from the traditional dynamic target, the auto-collimation dynamic target not only can simulate a moving target at infinity, but also can receive a light beam emitted by a tested tracking system, and the direct measurement of the tracking precision of the tested system is realized.
Because the self-alignment dynamic target simultaneously comprises the receiving unit, the transmitting unit, the rocker arm and other structures, the difficulty of system assembly and calibration is greatly increased. The existing assembly and calibration method only utilizes the collimator tube to carry out assembly and calibration, and the collimator tube needs to be moved when different components are assembled and calibrated, so that the assembly and calibration method is very inconvenient. Therefore, how to complete the alignment of the optical axis consistency of the auto-collimation dynamic target sub-optical path, the optical antenna and the rotary guide mirror is a problem which is difficult to solve, and a method capable of meeting the alignment of the auto-collimation dynamic target optical path is urgently needed at present.
In summary, the existing self-aligning dynamic target includes a receiving unit, a transmitting unit, a rocker arm, and other structures, which makes the system difficult to install and calibrate.
Disclosure of Invention
The invention solves the problem of high difficulty in assembling and calibrating the existing self-alignment dynamic target. The invention adopts double theodolites, firstly carries out assembly and calibration on the first guide mirror, and then carries out assembly and calibration on the second guide mirror according to the first guide mirror.
The invention relates to an optical alignment method of an auto-collimation dynamic target based on double theodolites, which adopts the double theodolites to realize the coaxial alignment of a light guide lens and a sub-optical path of the auto-collimation dynamic target, and the alignment method comprises the following steps:
fixing a rotating optical axis 15 through an auto-collimation dynamic target assembling and correcting tool 26, and finishing the optical axis consistency assembling and correcting of a reference reflector 16 and the rotating optical axis 15 by adopting a first warp-weft instrument 17 and combining a test reference reflector 16, wherein the posture of the first warp-weft instrument 17 is A;
step two, adjusting the first theodolite 17 to rotate by 45 degrees and change into a posture C; adjusting and determining the position and the initial posture B of the second theodolite 20;
step three, installing a first light guide mirror 21, adjusting the posture of the first light guide mirror 21 through a second theodolite, calibrating the included angle between the first light guide mirror 21 and the rotating optical axis 15, and finishing the assembly and calibration of the first light guide mirror 21; at the moment, the attitude of the second theodolite is D;
step four, the first guide mirror 21 and the test reference reflecting mirror 16 are disassembled;
fifthly, integrally installing the sub-optical path 13 and the card type antenna 14 at the left end of the rotary optical axis 15, adjusting the posture of the first theodolite 17 to recover to a posture A, and calibrating the postures of the sub-optical path 13 and the card type antenna 14 through the first theodolite 17 to finish the assembly and calibration of the sub-optical path 13 and the card type antenna 14;
sixthly, taking down the reference reflector 2; installing the first guide mirror 21 at the original position and fixing the first guide mirror by an installation positioning pin;
and seventhly, installing a second light guide mirror 19, and adjusting the posture of the second light guide mirror 19 by combining the first theodolite 17 with the second theodolite 20 to finish the assembly and calibration of the second light guide mirror 19.
Further, a specific method of the step one is exemplified as follows:
fixing the rotating optical axis 15 on a self-alignment dynamic target assembling and correcting tool 26;
a test reference mirror 16 is fixed on a boss 25 of a fixed reference mirror arranged inside the rotating optical axis 15;
placing the first warp-weft instrument 17 at the right side of the rotating optical axis 15, keeping the first warp-weft instrument at a horizontal posture, and then adjusting the position and posture of the first warp-weft instrument so that the light beam emitted by the first warp-weft instrument 17 is reflected by a reference reflecting mirror 16 and then is incident into the first warp-weft instrument 17 again to form an imaging cross light spot;
controlling the rotating optical axis 15 to rotate until the imaging cross light spot in the first warp-weft instrument 17 moves to the central position of the cross line thereof, and finishing the optical axis consistency assembly and calibration of the reference reflector 16 and the rotating optical axis 15; the attitude of the first warp gauge 17 at this time is marked as a, and the azimuth and pitch values of the attitude a are recorded.
Further, a specific method of the second step is exemplified as follows:
will first theodolite 17 position rotation 45 °, become gesture C, adjust it to be in horizontal attitude with second theodolite 20, through position, the gesture of adjustment second theodolite 20, make the light of first theodolite 17 transmission enter into second theodolite 20 and form formation of image cross facula and make formation of image cross facula remove extremely the cross central point of second theodolite 20 puts, and second theodolite 20 gesture is initial attitude B this moment to position and every single move numerical value under this gesture of record.
Further, a specific method of the third step is exemplified as follows:
adjusting the azimuth rotation of the second theodolite 20 by 45 degrees to enable the azimuth rotation to point to the installation position of the first guide mirror 21;
mounting a first guide mirror 21 at the mounting position;
controlling a second theodolite 20 to emit a light beam, enabling the light beam reflected by the first guide mirror 21 to be incident on the second theodolite 20 to form an imaging cross light spot, and adjusting the posture of the first guide mirror 21 until the cross light spot moves to the central position of a central cross line of the second theodolite 20, so as to finish calibration of an included angle between the first guide mirror 21 and the rotating optical axis 15; at this time, the attitude D of the first guide mirror 21.
Further, a specific example of the method in the fifth step is as follows:
integrally mounting the sub optical path 13 and the card antenna 14 to the left end of the rotary optical axis 15;
adjusting the posture of the first warp-weft instrument 17 into a posture A, then emitting a light beam, reflecting the light beam by a reference reflector 2 on the card antenna 14, and forming an imaging cross light spot in the first warp-weft instrument 17;
the whole postures of the sub-optical path 13 and the card type antenna 14 are adjusted until the imaging cross light spot moves to the cross line center position of the first warp-weft instrument 17, so that the optical axis of the sub-optical path and the optical axis of the rotating shaft are calibrated, and the assembly and calibration of the sub-optical path 13 are completed.
Further, a specific method of the step seven is exemplified as follows:
removing the reference mirror 2 and mounting the second guide mirror 19 at the mounting position of the first guide mirror of the swing arm 18;
rotating the first warp gauge 17 by 60 degrees to change into a posture F;
adjusting the posture of the second theodolite 20 so that the imaging cross facula received by the second theodolite 20 is located at the center of the cross line of the second theodolite 20, and at this time, the position and the posture of the second theodolite 20 are E;
rotating the angle of the second theodolite 20 by 120 degrees to change the theodolite into a posture H, and aligning the light beam emitted by the theodolite to the second guide mirror 19;
the sub-optical path 13 emits a light beam, the light beam is reflected by the first guide mirror 21 and then emitted to the second guide mirror 19, the light beam is reflected by the second guide mirror 19 and then incident to the second theodolite 20, and an imaging cross light spot is formed in the second theodolite 20;
and adjusting the posture of the second guide mirror 19, enabling the imaging cross light spot to move to the center position of a cross line in the second theodolite 20, fixing the second guide mirror 19 through a positioning pin, and finishing the assembly and calibration of the second light guide mirror 19.
Further, the sub-optical path 13 and the card antenna 14 are fixed together to form a whole, and the whole method includes:
integrally installing a self-alignment dynamic target sub-optical path 13 and a card type antenna 14 on a sub-optical path assembling and correcting tool 1, wherein the assembling and correcting tool 1 is fixed on a horizontal optical platform 4;
installing a reference reflector 2 at a reserved position of a 14-time mirror of the card type optical antenna;
controlling the collimator 3 to emit a light beam to be incident to the reference reflector 2, reflecting the light beam back to the collimator 3 through the reference reflector 2, and then, enabling the light beam to be incident to the collimator camera 24 after the collimator 3 to form an imaging light spot;
adjusting the posture of the sub-optical path assembling and correcting tool 1 to enable the imaging light spot to be located at the center of the 24 view field of the collimator camera, and completing the optical axis calibration of the card antenna 14 and the collimator 3;
and (5) calibrating the internal structure of the sub-light path 13.
The invention solves the problem of high difficulty in assembling and calibrating the existing self-alignment dynamic target. The method has the following specific beneficial effects:
1. the invention uses double theodolites to realize the coaxial assembly and calibration of the guide mirror and the sub-optical path, compared with the prior art, the operation of ensuring the consistency of the optical axes is not required to continuously move the collimator, the assembly and calibration of the consistency of the optical axes of the guide mirror and the sub-optical path are ensured by adopting the mutual matching of the double theodolites, and the assembly and calibration efficiency is improved.
2. The double-warp-weft instrument installation and calibration method of the auto-collimation dynamic target provided by the invention is operated, only the double theodolites are needed to calibrate, and the rotation angle of one theodolite is determined, so that the technical requirements on operators are greatly reduced, the operation efficiency is improved, and the problem that the installation and calibration efficiency and accuracy are influenced due to the inexperience of the professional skills of installation and calibration operators is effectively avoided.
The method is suitable for the assembly and calibration operation of the auto-collimation dynamic target, can be applied to the technical field of the processing and manufacturing of the auto-collimation dynamic target, and can also be applied to the technical field of the test of the auto-collimation dynamic target.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of the auto-collimation dynamic target optical assembly and calibration method based on the dual theodolites according to the present invention.
Fig. 2 is a schematic diagram of a sub-optical path calibration method according to the first embodiment.
Fig. 3 is a schematic diagram of the internal structure of the sub optical path 13 according to the eighth embodiment.
Fig. 4 is an optical path diagram of the sub optical path 13 according to the eighth embodiment.
In the figure: the device comprises a sub-optical path assembling and correcting tool 1, a reference reflector 2, a collimator 3, a horizontal mounting platform 4, a sub-optical path 13, a card antenna 14, a rotating optical axis 15, a test reference reflector 16, a first theodolite 17, a rocker 18, a second guide mirror 19, a second theodolite 20, a first guide mirror 21, a sub-optical path mounting plate 22, a parallel tube camera 24, a test reference reflector mounting boss 25 in the rotating optical axis and a self-collimation dynamic target assembling and correcting tool 26.
The sub optical path 13 includes: the device comprises a laser receiving camera 5, a laser receiving lens 6, a laser receiving reflector 7, a spectroscope 8, a deflection mirror 9, an infrared spectroscope 10, a laser emitting unit 11, an infrared emitting unit 12 and a sub-optical path mounting frame 23.
Detailed Description
Various embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.
First embodiment this embodiment will be described with reference to fig. 1 and 2. The embodiment is a double-theodolite-based optical alignment method for an auto-collimation dynamic target, which is to adopt double theodolites to realize coaxial alignment of a light guide mirror and a sub-optical path of the auto-collimation dynamic target, and the alignment method comprises the following steps:
fixing a rotating optical axis 15 through an auto-collimation dynamic target assembling and correcting tool 26, and finishing the optical axis consistency assembling and correcting of a test reference reflecting mirror 16 and the rotating optical axis 15 by adopting a first warp-weft instrument 17 and combining the test reference reflecting mirror 16, wherein the posture of the first warp-weft instrument 17 is A;
step two, adjusting the first theodolite 17 to rotate by 45 degrees to become a posture C; adjusting and determining the position and the initial posture B of the second theodolite 20;
thirdly, mounting a first light guide mirror 21, adjusting the posture of the first light guide mirror 21 through a second theodolite 20, calibrating the included angle between the first light guide mirror 21 and the rotating optical axis 15, and finishing the assembly and calibration of the first light guide mirror 21; at the moment, the attitude of the second theodolite is D;
step four, the first guide mirror 21 and the test reference reflecting mirror 16 are disassembled;
fifthly, integrally installing the sub-optical path 13 and the card type antenna 14 at the left end of the rotary optical axis 15, adjusting the posture of the first theodolite 17 to recover to a posture A, and calibrating the postures of the sub-optical path 13 and the card type antenna 14 through the first theodolite 17 to finish the assembly and calibration of the sub-optical path 13 and the card type antenna 14;
sixthly, taking down the reference reflector 2; installing the first guide mirror 21 at the original position and fixing the first guide mirror by an installation positioning pin;
and seventhly, installing a second light guide mirror 19, and adjusting the posture of the second light guide mirror 19 through the combination of the first theodolite 17 and the second theodolite 20 to finish the assembly and calibration of the second light guide mirror 19.
The self-collimating dynamic target structure of the present embodiment is shown in fig. 1: sub-light path 13 passes through sub-light path mounting panel 22 and card formula antenna 14 fixed connection, card formula antenna 14 imbeds and fixes in rotatory optical axis 15, rotatory optical axis 15 passes through bearing coaxial coupling with rocking arm 18, and bearing inner circle and rotatory optical axis outer lane are connected, and bearing outer lane and rocking arm 18 inner circle are connected, and here is rocking arm 18 and card formula antenna 14 relative rotation, be provided with first light guide mirror mounted position and second light guide mirror mounted position on the rocking arm 18, be used for fixed first light guide mirror 21 and second light guide mirror 19 respectively.
In this embodiment, the calibration is accomplished using dual theodolites (the first theodolite 17 and the second theodolite 20), which may be a lycra theodolite.
The sub-optical path 13 and the card antenna 14 described in the present embodiment are integrally configured after being assembled and corrected. The installation and calibration of the sub-optical path 13 and the card antenna 14 can be realized by adopting the existing method.
In the assembly and calibration method of the present embodiment, first, the first theodolite is used to complete the assembly and calibration of the consistency of the optical axis of the rotating optical axis 15 and the optical axis of the test reference reflector 16, where the position of the test reference reflector 16 is the position of the secondary mirror in the card antenna 14. Then the position and initial attitude B of the second theodolite 20 are determined by the first theodolite 17; then, the first light guide mirror 21 is calibrated by the two theodolites, and then the second light guide mirror 19 is calibrated.
Compared with the prior art, the method does not need the operation of using the collimator and moving the collimator for multiple times, and the operation is halved.
According to the method, after the first theodolite determines the position, only the pitching angle needs to be adjusted, the position of the second theodolite is determined through the first theodolite 17, the operation is simple, the requirement on the technical skill of an operator is low, and the phase assembling and correcting rate and the assembling and correcting accuracy can be effectively guaranteed.
In the second embodiment, a method for implementing the first step in the optical calibration method for a dual theodolite-based auto-collimation dynamic target according to the first embodiment is exemplified, and the first step includes:
fixing the rotating optical axis 15 on a self-alignment dynamic target assembling and correcting tool 26;
a test reference mirror 16 is fixed to a boss 25 of a fixed reference mirror provided inside the rotary optical axis 15;
placing the first warp-weft instrument 17 at the right side of the rotating optical axis 15, keeping the first warp-weft instrument at a horizontal posture, and then adjusting the position and posture of the first warp-weft instrument so that the light beam emitted by the first warp-weft instrument 17 is reflected by a reference reflecting mirror 16 and then is incident into the first warp-weft instrument 17 again to form an imaging cross light spot;
controlling the rotating optical axis 15 to rotate until the imaging cross light spot in the first warp-weft instrument 17 moves to the central position of the cross line thereof, and finishing the optical axis consistency assembly and calibration of the reference reflector 16 and the rotating optical axis 15; at this time, the first warp gauge 17 and the test reference reflector 16 have the same optical axis, the attitude of the first warp gauge 17 at this time is marked as a, and the azimuth and the pitch value of the attitude a are recorded.
In the third embodiment, a method for implementing the second step in the auto-collimation dynamic target optical alignment method based on the dual theodolites described in the first embodiment is exemplified, and the specific method of the second step is as follows:
will first theodolite 17 position rotation 45 °, become gesture C, adjust it to be in horizontal attitude with second theodolite 20, through position, the gesture of adjustment second theodolite 20, make the light beam of first theodolite 17 transmission incide to second theodolite 20 in and form formation of image cross facula and make formation of image cross facula removes extremely the cross central point of second theodolite 20 puts, and second theodolite 20 gesture is initial attitude B this moment to position and every single move numerical value under this gesture of record.
In the present embodiment, a method for implementing the third step in the auto-collimation dynamic target optical alignment method based on dual theodolites according to the first embodiment is exemplified, and the specific method of the third step is as follows:
adjusting the azimuth rotation of the second theodolite 20 by 45 degrees to enable the azimuth rotation to point to the installation position of the first guide mirror 21;
mounting a first guide mirror 21 at the first guide mirror mounting position;
controlling a second theodolite 20 to emit a light beam, enabling the light beam emitted by the light beam to be incident to the second theodolite 20 through the light beam reflected by the first guide mirror 21 to form an imaging cross light spot, and adjusting the posture of the first guide mirror 21 until the cross light spot moves to the central position of a central cross line of the second theodolite 20, so as to finish the calibration of the included angle between the first guide mirror 21 and the rotating optical axis 15; at this time, the posture D of the first guide mirror 21, at this time, the included angle between the first guide mirror 21 and the rotating optical axis 15 is 45 °, and the posture can effectively ensure the positioning accuracy during resetting.
The optical path length of the light output emitted by the second theodolite 20 is: the emitted light beam is incident on the first guide mirror 21, reflected on the test reference mirror 16, incident on the first guide mirror 21 again, reflected on the first guide mirror 21, and incident on the second theodolite 20.
In the method for optically assembling and calibrating the auto-collimation dynamic target based on the dual theodolites according to the first embodiment, a method for implementing the fifth step is illustrated, and the specific method of the fifth step is as follows:
integrally installing a sub-optical path 13 and a card type antenna 14 at the left end of a rotary optical axis 15, wherein a reference reflector 2 is installed at the back of a secondary mirror of the card type antenna 14, the reference reflector 2 and a test reference reflector 16 are different in position, the reference reflector 2 is installed at a reserved position at the back of the card type antenna secondary mirror, a truss structure is arranged inside the rotary optical axis 15, and an installation boss 25 for installing the test reference reflector 16 is arranged at the center of the truss structure;
adjusting the posture of the first warp-weft instrument 17 into a posture A, then emitting a light beam, reflecting the light beam by a reference reflector 2 on the card antenna 14, and forming an imaging cross light spot in the first warp-weft instrument 17;
through the whole gesture of adjustment sub-optical path 13 and card formula antenna 14, up to the formation of image cross facula removes first longitude latitude instrument 17's cross central point puts, and 13 optical axes of sub-optical path and 17 optical axes coincidence realize the optical axis of sub-optical path and the optical axis calibration of rotation axis this moment, accomplish sub-optical path 13 and card formula antenna 14's dress school.
In the sixth embodiment, an implementation method of the seventh step in the auto-collimation dynamic target optical alignment method based on dual theodolites in the first embodiment is exemplified, and the specific method of the seventh step is as follows:
removing the reference mirror 2 and mounting the second guide mirror 19 at the mounting position of the first guide mirror of the swing arm 18;
rotating the first warp gauge 17 by 60 ° to become a posture F;
adjusting the posture of the second theodolite 20 so that the imaging cross facula received by the second theodolite 20 is located at the center of the cross line of the second theodolite 20, and at this time, the position and the posture of the second theodolite 20 are E;
rotating the angle of the second theodolite 20 by 120 degrees to change the theodolite into a posture H, and aligning the light beam emitted by the theodolite to the second guide mirror 19;
the sub-optical path 13 emits a light beam, the light beam is reflected by the first guide mirror 21 and then emitted to the second guide mirror 19, the light beam is reflected by the second guide mirror 19 and then incident to the second theodolite 20, and an imaging cross light spot is formed in the second theodolite 20;
the posture of the second guiding mirror 19 is adjusted, the imaging cross light spot is moved to the center position of the cross line in the second theodolite 20, at the moment, the second guiding mirror 19 is 45 degrees with the included angle of the rotating optical axis 15, the second guiding mirror 19 is fixed through a positioning pin, and the assembly and calibration of the second guiding mirror 19 are completed.
In the present embodiment, in the method for assembling and calibrating the auto-collimation dynamic target based on the dual theodolite according to the first embodiment, the sub-optical path 13 and the card antenna 14 are fixed together to form an integral body, and the integral body can be implemented by using the existing assembling and calibrating method. The embodiment provides a loading and calibration method which comprises the following steps:
after fixedly connecting a self-alignment dynamic target sub-optical path 13 and a card type antenna 14 through a sub-optical path mounting plate, fixing the self-alignment dynamic target sub-optical path on a sub-optical path assembling and correcting tool 1, wherein the assembling and correcting tool 1 is fixed on a horizontal optical platform 4;
installing a reference reflector 2 at a reserved position of a 14-time mirror of the card type optical antenna;
controlling the collimator 3 to emit a light beam to be incident to the reference reflector 2, reflecting the light beam back to the collimator 3 through the reference reflector 2, and then, enabling the light beam to be incident to the collimator camera 24 after the collimator 3 to form an imaging light spot;
adjusting the posture of the sub-optical path assembling and correcting tool 1 to enable the imaging light spot to be located at the center of the 24 view field of the collimator camera, and at the moment, the optical axis of the card type antenna 14 is overlapped with that of the collimator 3 to finish the optical axis calibration of the card type antenna 14 and the collimator 3;
and (5) calibrating the internal structure of the sub-light path 13.
The light beam emitted by the collimator 3 can be realized by visible light, for example: the light beam with the wavelength of 600nm and the light beam of visible light are adopted, so that the observation of the light path in the assembling and correcting process is more convenient.
The collimator can be a multi-focal plane collimator.
The present embodiment is an example of a method for performing calibration on the internal structure of the sub optical path 13 in the auto-collimation dynamic target optical calibration method based on dual theodolites according to the seventh embodiment, and the method includes:
the postures of the laser receiving reflecting mirror 7 and the spectroscope 8 are respectively adjusted, so that the light beams emitted by the collimator 3 are positioned at the center positions of the lenses when reaching the laser receiving reflecting mirror 7 and the spectroscope 8;
installing a deflection mirror 9 and an infrared spectroscope 10, and respectively adjusting the postures of the deflection mirror 9 and the infrared spectroscope 10 so that light beams emitted by the collimator 3 are positioned at the center positions of lenses when respectively reaching the installation deflection mirror 9 and the infrared spectroscope 10;
the method comprises the steps of carrying out installation and calibration on the whole laser receiving unit, and determining the posture of the whole laser receiving unit;
installing an infrared emission unit 12, and adjusting the posture of the infrared emission unit 12 and the integral posture of the infrared emission unit 12 and the infrared spectroscope 10 to finish the assembly and calibration of the infrared emission unit 12 and the infrared spectroscope 10;
installing and adjusting the posture of the laser emitting unit 11, and performing assembly and calibration to complete assembly and calibration inside the sub-optical path 13;
the process of adjusting the posture of the laser emitting unit 11 is as follows: and adjusting the posture of the collimator lens to enable the emission light beam to enter the collimator lens camera 24 through the sub-light path 13 and the card type antenna 14 to form an imaging light spot at the center of the view field of the collimator lens camera 24, so as to finish posture adjustment.
Referring to fig. 3 and 4, a laser emission unit 11 emits a light beam to one side of an infrared spectroscope 10, an infrared emission unit 12 emits an infrared light beam to the other side of the infrared spectroscope 10, the laser emission unit 11 emits the light beam to the infrared spectroscope 10, the light beam transmitted by the infrared spectroscope 10 and the infrared light beam refracted by the infrared spectroscope 10 form a light beam, the light beam is emitted to a deflection mirror 9, the deflection mirror 9 reflects incident light and transmits the incident light to a spectroscope 8, the light beam reflected by the spectroscope 8 is transmitted to a laser receiving reflector 7, the light beam reflected by the laser receiving reflector 7 is transmitted to a laser receiving camera 5, is imaged in the laser receiving camera 5, and the light beam transmitted by the spectroscope 8 is transmitted to a card type antenna 14.
The laser receiving camera 5, the laser receiving reflector 7, the spectroscope 8, the deflection mirror 9, the infrared spectroscope 10, the laser emitting unit 11 and the infrared emitting unit 12 are all fixed on the mounting frame 23, wherein the laser receiving lens 6 of the laser receiving camera 5 faces the reflecting surface of the laser receiving reflector 7.
In the present embodiment, the procedure of the auto-collimation dynamic target optical calibration method based on the dual theodolites in the eighth embodiment is exemplified, and the method for calibrating the whole laser receiving unit in the present embodiment is as follows:
adjusting the integral posture of the laser receiving unit to enable an imaging light spot of the light beam emitted by the collimator 3 in the laser receiving camera 5 to be positioned at the center of a view field;
and adjusting the focal plane of the laser receiving camera 5 to be superposed with the lens focal plane of the laser receiving lens 6, thereby finishing the assembly and calibration of the laser receiving unit.
The present embodiment is an example of the steps in the method for assembling and calibrating an auto-collimation dynamic target based on a dual theodolite according to the eighth embodiment, in the present embodiment, the method for assembling and calibrating the infrared emission unit 12 and the infrared spectroscope 10 includes:
adjusting the posture of the infrared emission unit 12 to enable the light beam emitted by the infrared emission unit to form an imaging light spot in a collimator camera 24, and keeping the relative position of the infrared emission unit 12 and the infrared spectroscope 10 unchanged;
and adjusting the integral postures of the infrared emission unit 12 and the infrared spectroscope 10 to enable the imaging light spot to move to the central position of the view field of the collimator camera 24, and finishing the assembly and calibration of the infrared emission unit 12 and the infrared spectroscope 10.
Claims (10)
1. The auto-collimation dynamic target optical assembling and calibrating method based on the double theodolites is characterized in that the method adopts the double theodolites to realize the coaxial assembling and calibrating of a light guide mirror and a sub-optical path of the auto-collimation dynamic target, and the assembling and calibrating method comprises the following steps:
fixing a rotating optical axis (15) through an auto-collimation dynamic target assembly and calibration tool (26), and completing the optical axis consistency assembly and calibration of a reference reflector (16) and the rotating optical axis (15) by adopting a first theodolite (17) and a test reference reflector (16), wherein the attitude of a pitching theodolite (17) is A;
step two, adjusting the first theodolite (17) to rotate by 45 degrees and change into a posture C; adjusting and determining the position and the initial posture B of the second theodolite (20);
thirdly, mounting a first light guide mirror (21), adjusting the posture of the first light guide mirror (21) through a second theodolite (20), calibrating the included angle between the first light guide mirror (21) and a rotating optical axis (15), and finishing the assembly and calibration of the first light guide mirror (21); the attitude of the second theodolite (20) is D;
step four, the first guide mirror (21) and the test reference reflecting mirror (16) are disassembled;
fifthly, integrally installing the sub-optical path (13) and the card type antenna (14) at the left end of the rotary optical axis (15), adjusting the posture of the first theodolite (17) to recover to a posture A, and calibrating the postures of the sub-optical path (13) and the card type antenna (14) through the first theodolite (17) to finish the assembly and calibration of the sub-optical path (13) and the card type antenna (14);
sixthly, taking down the reference reflector (2); the first guide mirror (21) is installed at the original position and is fixed through an installation positioning pin;
and seventhly, installing a second light guide mirror (19), and adjusting the posture of the second light guide mirror (19) by combining the first theodolite (17) with the second theodolite (20) to finish the assembly and calibration of the second light guide mirror (19).
2. The optical alignment method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 1, wherein the specific method of the first step is:
fixing a rotating optical axis (15) on an auto-collimation dynamic target assembling and calibrating tool (26);
a test reference reflector (16) is fixed on a boss (25) of the fixed reference reflector arranged in the rotating optical axis (15);
placing a first warp-weft instrument (17) at the right side of the rotating optical axis (15) and keeping the first warp-weft instrument in a horizontal posture, and then adjusting the position and the posture of the first warp-weft instrument so that the light beam emitted by the first warp-weft instrument (17) is reflected by a reference reflecting mirror (16) and then is incident into the first warp-weft instrument (17) again to form an imaging cross-shaped light spot;
controlling the rotating optical axis (15) to rotate until an imaging cross light spot in the first longitude and latitude instrument (17) moves to the central position of a cross line of the imaging cross light spot, and finishing the optical axis consistency assembly and calibration of the reference reflector (16) and the rotating optical axis (15); and marking the attitude of the pitching theodolite (17) at the moment as A, and recording the azimuth and the pitching numerical value of the attitude A.
3. The optical alignment method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 1, wherein the specific method in the second step is:
will first theodolite (17) position is rotatory 45 °, becomes gesture C, adjusts it to be in horizontal gesture with second theodolite (20), through position, the gesture of adjustment second theodolite (20), makes the light of first theodolite (17) transmission enter into second theodolite (20) and form formation of image cross facula and make formation of image cross facula removes extremely the cross central point of second theodolite (20) puts, and second theodolite (20) gesture is initial gesture B this moment to position and every single move numerical value under the record this gesture.
4. The optical alignment method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 1, wherein the specific method of the third step is:
adjusting the azimuth rotation of the second theodolite (20) by 45 degrees to enable the azimuth rotation to point to the installation position of the first guide mirror (21);
-mounting a first guide mirror (21) in the mounting position;
controlling a second theodolite (20) to emit a light beam, enabling the light beam reflected by the first guide mirror (21) to be incident to the second theodolite (20) to form an imaging cross light spot, adjusting the posture of the first guide mirror (21) until the cross light spot moves to the central position of a central cross line of the second theodolite (20), and completing calibration of an included angle between the first guide mirror (21) and a rotating optical axis (15); at this time, the attitude D of the first guide mirror (21).
5. The optical alignment method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 1, wherein the concrete method of the fifth step is:
integrally mounting the sub-optical path (13) and the card antenna (14) to the left end of the rotary optical axis (15);
adjusting the attitude of a first longitude instrument (17) into an attitude A, then emitting a light beam, reflecting the light beam by a reference reflector (2) on a card antenna (14) and forming an imaging cross light spot in the first longitude instrument (17);
the optical axis of the sub-optical path and the optical axis of the rotating shaft are calibrated by adjusting the integral postures of the sub-optical path (13) and the card antenna (14) until the imaging cross light spot moves to the central position of the cross line of the first longitude latitude instrument (17), and the assembly and calibration of the sub-optical path (13) are completed.
6. The optical alignment method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 1, wherein the concrete method of the seventh step is:
removing the reference reflector (2), and installing a second guide mirror (19) at the installation position of the first guide mirror of the rocker arm (18);
rotating the first warp gauge (17) by 60 degrees to form a posture F;
adjusting the posture of a second theodolite (20) to enable an imaging cross facula received by the second theodolite (20) to be located at the center of a cross line of the second theodolite (20), wherein the position and the posture of the second theodolite (20) are E;
rotating the angle of the second theodolite (20) by 120 degrees to form a posture H, and aligning the light beam emitted by the second theodolite to a second guide mirror (19);
the sub-optical path (13) emits a light beam, the light beam is reflected by the first guide mirror (21) and then emitted to the second guide mirror (19), the light beam is reflected by the second guide mirror (19) and then incident to the second theodolite (20), and an imaging cross light spot is formed in the second theodolite (20);
and adjusting the posture of the second guide mirror (19), enabling the imaging cross light spot to move to the center position of a cross line in the second theodolite (20), fixing the second guide mirror (19) through a positioning pin, and finishing the assembly and calibration of the second guide mirror (19).
7. The dual theodolite-based auto-collimation dynamic target optical alignment method as claimed in claim 1, wherein the sub-optical path (13) and the card antenna (14) are fixed together to form an integral body, and the integral body is aligned by using the following method:
integrally installing a self-alignment dynamic target sub-optical path (13) and a card type antenna (14) on a sub-optical path assembling and correcting tool (1), wherein the assembling and correcting tool (1) is fixed on a horizontal optical platform (4);
installing a reference reflector (2) at a reserved position of a secondary mirror of the card type optical antenna (14);
controlling a light beam emitted by the collimator (3) to be incident to a reference reflector (2), reflecting the light beam back to the collimator (3) through the reference reflector (2), and then incident to a collimator camera (24) after the collimator (3) to form an imaging light spot;
adjusting the posture of the sub-optical path assembling and correcting tool (1) to enable the imaging light spot to be located at the center of the view field of the collimator camera (24), and completing the optical axis calibration of the cassette antenna 14 and the collimator 3;
and (5) calibrating the internal structure of the sub-light path 13.
8. The optical alignment method for the self-collimating dynamic target based on the dual theodolites as claimed in claim 7, wherein the alignment method for the internal structure of the sub-beam path (13) comprises:
the postures of the laser receiving reflecting mirror (7) and the spectroscope (8) are respectively adjusted, so that the light beams emitted by the collimator (3) are positioned at the center of the lens when reaching the laser receiving reflecting mirror (7) and the spectroscope (8);
the installation deflection mirror (9) and the infrared spectroscope (10) are respectively adjusted in posture, so that light beams emitted by the collimator (3) are positioned in the center of the lens when respectively reaching the installation deflection mirror (9) and the infrared spectroscope (10);
the method comprises the steps of carrying out installation and calibration on the whole laser receiving unit and determining the posture of the whole laser receiving unit;
installing an infrared emission unit (12), and adjusting the posture of the infrared emission unit (12) and the integral posture of the infrared emission unit and the infrared spectroscope (10) to finish the assembly and calibration of the infrared emission unit (12) and the infrared spectroscope (10);
installing and adjusting the posture of the laser emitting unit (11), and performing assembly and calibration to complete assembly and calibration inside the sub-optical path (13); the process of adjusting the posture of the laser emitting unit (11) comprises the following steps: and adjusting the posture of the collimator lens to enable the emission light beam to enter the collimator lens (24) through the sub-light path (13) and the card antenna (14) to form an imaging light spot at the center of the view field of the collimator lens (24), so as to finish posture adjustment.
9. The optical calibration method for the auto-collimation dynamic target based on the dual theodolites as claimed in claim 8, wherein the calibration method for the whole laser receiving unit comprises:
adjusting the integral posture of the laser receiving unit to enable an imaging light spot of the light beam emitted by the collimator (3) in the laser receiving camera (5) to be positioned at the center of a view field;
and adjusting the focal plane of the laser receiving camera (5) to be superposed with the lens focal plane of the laser receiving lens (6), thereby finishing the assembly and calibration of the laser receiving unit.
10. The optical calibration method for the self-collimating dynamic target based on the dual theodolites of claim 8, wherein the calibration method for the infrared emission unit (12) and the infrared spectroscope (10) comprises the following steps:
adjusting the posture of the infrared emission unit (12) to enable the light beam emitted by the infrared emission unit to form an imaging light spot in a collimator camera (24), and keeping the relative position of the infrared emission unit (12) and the infrared spectroscope (10) unchanged;
and adjusting the integral posture of the infrared emission unit (12) and the infrared spectroscope (10) to enable the imaging light spot to move to the central position of the field of view of the collimator camera (24), and finishing the assembly and calibration of the infrared emission unit (12) and the infrared spectroscope (10).
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