CN102192757B - Method for calibrating azimuth reference mirror - Google Patents
Method for calibrating azimuth reference mirror Download PDFInfo
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- CN102192757B CN102192757B CN201010121282.2A CN201010121282A CN102192757B CN 102192757 B CN102192757 B CN 102192757B CN 201010121282 A CN201010121282 A CN 201010121282A CN 102192757 B CN102192757 B CN 102192757B
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Abstract
The invention relates to a method for calibrating an azimuth reference mirror. The method for calibrating the azimuth reference mirror comprises the following steps of: (1) erecting an auto-collimation transit; and (2) calibrating the azimuth reference mirror. The method for calibrating the azimuth reference mirror has a scientific and reasonable design, is easy and convenient to operate, and has high installation accuracy, and the calibration result is accurate; the field calibration is not needed, and the azimuth accuracy is guaranteed by the parallelism precision of an installation foundation, a mirror surface, and an installation bottom of the azimuth reference mirror.
Description
Technical field
The present invention relates to the method for orientation reference mirror minute surface normal and installed surface calibration, especially a kind of method for calibrating azimuth reference mirror.
Background technology
The optical device that orientation reference mirror is is main element with optical flat mirror.Orientation reference mirror is installed on Naval Vessels Cabin inwall usually, represents naval vessels fore and aft line with minute surface normal; Also may be used for indoor, the optics azimuth reference that representative is fixing.Generally adopt following methods during current installation position reference mirror: first orientation reference mirror is arranged on appropriate location, then by the governor motion on adjustment mirror body, minute surface normal and azimuth reference are evened up.This installation method needs on-the-spot calibration, and precision is ensured by Calibration Method and equipment.Because calibration is carried out at its needs scene, therefore cumbersome bothersome, and by such environmental effects, installation accuracy not easily ensures.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one to utilize autocollimation theodolite as angle measurement tool, in conjunction with laser singulation multiple tooth dividing head, orientation reference mirror is carried out to the method for calibration.
The present invention solves its technical matters and is achieved through the following technical solutions:
A kind of method for calibrating azimuth reference mirror, is characterized in that: this Calibration Method comprises:
(1) set up autocollimation theodolite:
1. autocollimation theodolite is positioned over dividing head dead ahead;
2. by after autocollimation theodolite leveling, it is made to sight dividing head table top, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time the orientation reading DX of autocollimation theodolite and pitching reading VX: D1, V1, D2, V2, D3, V3, D4 and V4, by computing formula D0=D1 – D3, V0=D2 – D4 calculate azimuth reference value D0, pitching reference value V0;
(2) calibrating azimuth reference mirror:
1. orientation reference mirror is fixed on the center of dividing head table top, 0 °, 90 °, 180 °, 270 ° positions of four corresponding dividing heads of adjustment screws difference in reference mirror; Autocollimation theodolite is sighted orientation reference mirror under autocollimation state, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time autocollimation theodolite sight orientation reading and the pitching reading of orientation reference mirror, obtain D mirror value and V mirror value according to the computing formula described in step (1);
2. adjusting orientation reference mirror 90 ° makes the D mirror value of orientation reference mirror conform to the D0 value of dividing head table top with the adjustment screw of 270 ° of positions; Adjustment orientation reference mirror 0 ° makes the V mirror value of orientation reference mirror conform to the V0 value of dividing head table top with the adjustment screw of 180 ° of positions; Through adjustment, obtain the reference mirror D mirror value, the V mirror value that conform to V0 value with dividing head table top D0 value, namely show that benchmark minute surface and reference mirror install bottom surface parallel;
3. the set nut of reference mirror is locked, review minute surface D mirror value, V mirror value, meet accuracy requirement and then the sealing of adjustment screw is fixed.
And described autocollimation theodolite is Leica TM5100A autocollimation theodolite, angle-measurement accuracy 0.5 ".
And described dividing head is the multiple tooth dividing head of laser singulation.
And described Calibration Method also comprises: review after step (2) terminates, after namely adjusting screw sealing solidification, sight minute surface with autocollimation theodolite, measure D mirror, V mirror value; Orientation reference mirror taken off from dividing head, autocollimation theodolite sights dividing head table top, measures D0 value, V0 value, and compare with the D mirror value of orientation reference mirror, V mirror value, meet the requirements, this calibrating azimuth reference mirror completes.
And described orientation reference mirror minute surface and the reference mirror parallel accuracy of installing between bottom surface is depth of parallelism <0.0015mm.
Advantage of the present invention and beneficial effect are:
1, adopt this Calibration Method without the need to on-the-spot calibration, only need pre-designed orientation reference mirror mounting seat, and orientation reference mirror is carried out pre-calibration, minute surface is adjusted to and with orientation reference mirror, the parallel state in bottom surface is installed, then be installed in mounting seat by orientation reference mirror, the parallel accuracy that bearing accuracy installs bottom surface by mounting seat and minute surface and orientation reference mirror ensures.Scene need not be gone to carry out calibration after adopting this pre-Calibration Method, therefore extremely convenient, save time and save trouble.
2, adopt this Calibration Method without the need to on-the-spot calibration, the impact of environmental factor can be reduced, be conducive to ensureing installation accuracy.
3, the present invention is the method for calibrating azimuth reference mirror that a kind of design science is reasonable, simple to operation, calibration result is accurate, installation accuracy is high, this method is without the need to on-the-spot calibration, and the parallel accuracy that bearing accuracy installs bottom surface by mounting seat and minute surface and orientation reference mirror ensures.
Accompanying drawing explanation
Fig. 1 is the structural representation of orientation reference mirror;
Fig. 2 is the vertical view (broken section) of Fig. 1.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
The step of this method for calibrating azimuth reference mirror is:
(1) set up autocollimation theodolite
1. autocollimation theodolite is positioned over appropriate location, dividing head front, is advisable not hinder operation dividing head and installation, adjustment orientation reference mirror.Autocollimation theodolite in the present embodiment is Leica TM5100A autocollimation theodolite, angle-measurement accuracy 0.5 ".Dividing head in the present embodiment is the multiple tooth dividing head of laser singulation, and the multiple tooth dividing head of this laser singulation is a rotating disk vertically placed, and the surface of rotating disk is shaped with scale.
2. adjust autocollimation theodolite height, make it rough alignment dividing head table top center.Utilize the level(l)ing device of autocollimation theodolite by after Theodolite Setting, sight dividing head table top, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time the orientation reading (DX) of autocollimation theodolite and pitching reading (VX): (D1, V1), (D2, V2), (D3, V3), (D4, V4).
Calculate: D0=D1 – D3, V0=D2 – D4, obtain the angle change that turntable table top rotates a circle.
(2) calibrating azimuth reference mirror
1. orientation reference mirror is fixed on dividing head platform central position, 0 °, 90 °, 180 °, 270 ° positions of four corresponding dividing heads of adjustment screws 1 difference in reference mirror.Autocollimation theodolite is sighted orientation reference mirror under autocollimation state, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time autocollimation theodolite sight orientation reading and the pitching reading of orientation reference mirror, obtain D mirror value, V mirror value according to the computing method described in step (1).
2. adjusting orientation reference mirror 90 ° makes the D mirror value of orientation reference mirror conform to the D0 value of dividing head table top with the adjustment screw of 270 ° of positions; Adjustment orientation reference mirror 0 ° makes the V mirror value of orientation reference mirror conform to the V0 value of dividing head table top with the adjustment screw of 180 ° of positions.For several times adjustment, obtains the reference mirror D mirror value, the V mirror value that conform to dividing head table top centre of gyration data repeatedly, namely shows that benchmark minute surface and reference mirror install bottom surface parallel.
3. reference mirror upper locking nut 2 is locked, review minute surface D mirror value, V mirror value, meet the requirements and then will adjust screw sealing; Undesirable, then loosen set nut and readjust, until meet the requirements, last sealing is fixed.
Review
After adjustment screw sealing solidification, sight minute surface 3 with autocollimation theodolite, measure D mirror value, V mirror value.Orientation reference mirror is taken off from dividing head, autocollimation theodolite sights dividing head table top, measure D0, V0 value, compare with the D mirror of orientation reference mirror, V mirror value, meet the requirements (depth of parallelism <0.0015mm) then this calibrating azimuth reference mirror complete.
Claims (5)
1. a method for calibrating azimuth reference mirror, is characterized in that: this Calibration Method comprises:
(1) set up autocollimation theodolite:
1. autocollimation theodolite is positioned over dividing head dead ahead;
2. autocollimation theodolite height is adjusted, make it rough alignment dividing head table top center, after autocollimation theodolite leveling, it is made to sight dividing head table top, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time the orientation reading DX of autocollimation theodolite and pitching reading VX: D1, V1, D2, V2, D3, V3, D4 and V4, by computing formula D0=D1 – D3, V0=D2 – D4 calculate azimuth reference value D0, pitching reference value V0;
(2) calibrating azimuth reference mirror:
1. orientation reference mirror is fixed on the center of dividing head table top, 0 °, 90 °, 180 °, 270 ° positions of four corresponding dividing heads of adjustment screws difference in reference mirror; Autocollimation theodolite is sighted orientation reference mirror under autocollimation state, record dividing head 0 °, 90 °, 180 °, 270 ° of positions time autocollimation theodolite sight orientation reading and the pitching reading of orientation reference mirror, obtain D mirror value and V mirror value according to the computing formula described in step (1);
2. adjusting orientation reference mirror 90 ° makes the D mirror value of orientation reference mirror conform to the D0 value of dividing head table top with the adjustment screw of 270 ° of positions; Adjustment orientation reference mirror 0 ° makes the V mirror value of orientation reference mirror conform to the V0 value of dividing head table top with the adjustment screw of 180 ° of positions; Through adjustment, obtain the reference mirror D mirror value, the V mirror value that conform to V0 value with dividing head table top D0 value, namely show that benchmark minute surface and reference mirror install bottom surface parallel;
3. the set nut of reference mirror is locked, review minute surface D mirror value, V mirror value, meet accuracy requirement and then the sealing of adjustment screw is fixed.
2. method for calibrating azimuth reference mirror according to claim 1, is characterized in that: described autocollimation theodolite is Leica TM5100A autocollimation theodolite, angle-measurement accuracy 0.5 ".
3. method for calibrating azimuth reference mirror according to claim 1, is characterized in that: described dividing head is the multiple tooth dividing head of laser singulation.
4. method for calibrating azimuth reference mirror according to claim 1, it is characterized in that: described Calibration Method also comprises: review after step (2) terminates, namely, after adjusting screw sealing solidification, sight minute surface with autocollimation theodolite, measure D mirror value, V mirror value; Orientation reference mirror taken off from dividing head, autocollimation theodolite sights dividing head table top, measures D0 value, V0 value, and compare with the D mirror value of orientation reference mirror, V mirror value, meet the requirements, this calibrating azimuth reference mirror completes.
5. the method for calibrating azimuth reference mirror according to claim 1 or 4, is characterized in that: described orientation reference mirror minute surface and the reference mirror parallel accuracy of installing between bottom surface is depth of parallelism <0.0015mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010121282.2A CN102192757B (en) | 2010-03-10 | 2010-03-10 | Method for calibrating azimuth reference mirror |
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| CN201010121282.2A CN102192757B (en) | 2010-03-10 | 2010-03-10 | Method for calibrating azimuth reference mirror |
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| CN102192757B true CN102192757B (en) | 2015-03-18 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103017792B (en) * | 2012-12-12 | 2015-05-06 | 中国船舶重工集团公司第七0七研究所 | Orientation reference mirror |
| CN103033172B (en) * | 2012-12-12 | 2014-12-31 | 中国船舶重工集团公司第七0七研究所 | Azimuth standard lens based on roof prism |
| CN105928542B (en) * | 2016-04-15 | 2019-07-19 | 上海微小卫星工程中心 | A kind of manufacturing method of satellite |
| CN111121734A (en) * | 2020-01-03 | 2020-05-08 | 中国船舶重工集团公司第七0七研究所 | Device and method for measuring deformation of inertial equipment mounting base |
| CN113002725A (en) * | 2021-02-23 | 2021-06-22 | 江南造船(集团)有限责任公司 | Installation and calibration method of azimuth reference mirror |
| CN114322920A (en) * | 2021-12-31 | 2022-04-12 | 武汉武船计量试验有限公司 | Method for measuring central angle of transmitting tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3983772A (en) * | 1975-09-26 | 1976-10-05 | Oldham Dale R | Cutting machine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3983772A (en) * | 1975-09-26 | 1976-10-05 | Oldham Dale R | Cutting machine |
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