CN202885836U - Theodolite level one circle measurement precision testing system under extreme temperature condition - Google Patents
Theodolite level one circle measurement precision testing system under extreme temperature condition Download PDFInfo
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- CN202885836U CN202885836U CN 201220511774 CN201220511774U CN202885836U CN 202885836 U CN202885836 U CN 202885836U CN 201220511774 CN201220511774 CN 201220511774 CN 201220511774 U CN201220511774 U CN 201220511774U CN 202885836 U CN202885836 U CN 202885836U
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Abstract
The utility model relates to a theodolite level one circle measurement precision testing system under an extreme temperature condition. The testing system comprises a data collection control computer, an auto-collimator, a constant-temperature test chamber, a multi-tooth circular dividing table and a plane reflection mirror which is fixedly connected with a theodolite to be detected; the multi-tooth circular dividing table is arranged inside the constant-temperature test chamber and is electrically connected with the data collection control computer through a cable; the side wall of the constant-temperature test chamber is provided with an optical window; the theodolite to be detected is arranged on the multi-tooth circular dividing table; the auto-collimator is opposite to the plane reflection mirror through the optical window and is located at an equal-height position; and the data collection control computer is respectively connected with the multi-tooth circular dividing table and the auto-collimator. The theodolite level one circle measurement precision testing system under the extreme temperature condition is high in automation degree, high in measurement precision and high in stability.
Description
Technical field
The utility model belongs to optical field, relates to a kind of accuracy test device, relates in particular under a kind of extreme temperature conditions one survey time of transit level accuracy test system.
Background technology
Transit is the geodetic surveying precise light electrical measurement angle instrument of measuring surface level position angle and the vertical plane angle of pitch.Development along with photoelectricity, digitizing and robotization, modern transit singly has not been the geodetic surveying instrument, nowadays is widely used in astronomical surveing, geodetic surveying, precise engineering survey and the metering fields such as mapping, meteorology, railway, highway, bridge, tunnel, water conservancy, mine, automobile, boats and ships, urban construction.Certainly, along with industrial development and national defense construction, transit also is widely used in a plurality of fields such as Aero-Space, target range measurement, missile aiming.Therefore, under the development of yield-power and science and technology, transit demonstrates more and more important effect.
One survey time of level precision also is the foundation of dividing this transit accuracy class as one of of paramount importance technical indicator in the transit test, weighs especially the standard of this transit measurement of bearing accuracy.At present, because the impact of environment for use, especially under temperature variation or temperature requirement exacting terms, one survey time of the level precision of general transit must be a greater impact, even can't satisfy the requirement of index.But for requiring more strict technical grade transit even army grade transit, under extreme temperature conditions, one survey time of level precision still must satisfy the requirement of index, and the detection of the normal temperature of this index has been not enough to illustrate its quality.Therefore must the level one survey time precision of pair warp and weft instrument under extreme temperature conditions test accurately.And extreme temperature conditions generally need to use Homothermal Proof Box to simulate, when transit to be measured is in the Homothermal Proof Box, can't flatten by level, and use conventional test methodologies also can't use human eye by transit to be measured the parallel light tube target to be aimed at.Therefore need under a kind of extreme temperature conditions one survey time of transit level accuracy test system.
The utility model content
In order to solve the above-mentioned technical matters that exists in the background technology, the utility model provide that a kind of automaticity is high, measuring accuracy is high and stable high extreme temperature conditions under one survey time of transit level the accuracy test system.
Technical solution of the present utility model is: the utility model provides under a kind of extreme temperature conditions one survey time of transit level accuracy test system, and its special character is: the accuracy test system comprises data acquisition control computing machine, autocollimator, Homothermal Proof Box, multiteeth indexing table and the plane mirror that is fixedly connected with transit to be measured one survey time of transit level under the described extreme temperature conditions; Described multiteeth indexing table is arranged on Homothermal Proof Box inside and is electrically connected by cable with the data acquisition control computing machine; Be provided with optical window on the sidewall of described Homothermal Proof Box; Transit to be measured is arranged on the multiteeth indexing table; Described autocollimator is relative with plane mirror and be in isometry position by optical window; Described data acquisition control computing machine links to each other with multiteeth indexing table and autocollimator respectively.
The accuracy test system also comprises the alidade fixed support one survey time of transit level under the above-mentioned extreme temperature conditions; Described transit to be measured is arranged on the multiteeth indexing table by the alidade fixed support; Described plane mirror is located on the sidewall of alidade fixed support upper end.
Above-mentioned transit to be measured and the coaxial setting of multiteeth indexing table.
Also comprise cable-through hole on the above-mentioned Homothermal Proof Box; The cable of described connection multiteeth indexing table and data acquisition control computing machine passes cable-through hole.
Above-mentioned autocollimator is Two-Axis Autocollimator.
Above-mentioned Two-Axis Autocollimator can be ± 15 ' the visual field in provide simultaneously X-direction measurement of bearing value and Y-direction pitching measured value.
The angle measurement accuracy of above-mentioned Two-Axis Autocollimator is 0.1 ".
Above-mentioned multiteeth indexing table is automatically controlled multiteeth indexing table, and it is 0.1 that the angle of described multiteeth indexing table is divided equally precision ".
The RMS value of the surface figure accuracy of above-mentioned plane mirror is λ/20, and the reflectivity of described plane mirror is 99%.
The Temperature Setting scope of above-mentioned Homothermal Proof Box is-55 ℃～+ 80 ℃, the temperature stability of described Homothermal Proof Box is ± and 0.5 ℃.
The utility model has the advantages that:
Test macro provided by the utility model has solved in Homothermal Proof Box under the extreme temperature conditions, and transit to be measured can't flatten and can't carry out the problem of human eye aiming test, has the following advantages:
1, high automation.The utility model has adopted multiteeth indexing table, can by rotation and the location of automatically controlled realization multiteeth indexing table, need not disengagement and the playback of manually-operated multiteeth indexing table.Simultaneously, the utility model has also adopted autocollimator, has realized that CCD gathers the autocollimation picture automatically, finishes measurement of angle, need not the human eye aiming.In addition, the utility model has also adopted computing machine and testing software, has realized control, collection and calculating multiple function.So that the test of one survey time of transit level precision has fundamentally realized high automation under the extreme temperature conditions.
2, high precision.The utility model has adopted multiteeth indexing table, and multiteeth indexing table is that wholecircle 23 is divided equally, and it is 0.1 that angle is divided equally precision ".Simultaneously, the utility model has also adopted autocollimator, can provide the measured value in X-direction orientation, and angle measurement accuracy is 0.1 ", eliminate the human eye pointing error.In addition, the utility model has also adopted plane mirror and optical window, and the surface figure accuracy RMS value of plane mirror is λ/20, reflectivity is 99%, used sheet glass two planar parallelisms of optical window are 1 ", transmitance is 98%, in order to provide high-quality autocollimation to return picture.So that the test of one survey time of transit level precision has fundamentally realized high precision under the extreme temperature conditions.
3, high stability.The utility model has adopted Homothermal Proof Box, and its temperature stability is ± 0.5 ℃, and ambient condition is stable in the assurance test process.Simultaneously, the utility model has also adopted autocollimator, can provide the measured value of Y-direction pitching, angle measurement accuracy is 0.1 "; realized by tower is poor transit to be measured being flattened; solved under the extreme temperature conditions, can't be by the difficult problem of level leveling owing to expand with heat and contract with cold, the test of precision provides reliable assurance for one survey time of level.In addition, the utility model has also adopted the alidade fixed support, transit alidade to be measured bottom is fixed together with multiteeth indexing table table top outer base, so that the multiteeth indexing table table top is when rotating, the relative backward rotation respective angles of transit alidade to be measured, by the measured value in autocollimator X-direction orientation, the skew of monitoring low-angle is also revised corresponding side-play amount.Can realize the high stability in one survey time of the transit level accuracy test process under the extreme temperature conditions.
Description of drawings
Fig. 1 be under the extreme temperature conditions provided by the utility model one survey time of transit level the accuracy test system structural representation;
Wherein:
The 1-multiteeth indexing table; 2-alidade fixed support; 3-transit to be measured; The 4-plane mirror; The 5-Homothermal Proof Box; The 6-optical window; The 7-cable-through hole; The 8-autocollimator; The 9-computing machine.
Embodiment
The utility model provides under a kind of extreme temperature conditions one survey time of transit level accuracy test system, and this system comprises data acquisition control computing machine, autocollimator, Homothermal Proof Box, multiteeth indexing table and the plane mirror that is fixedly connected with transit to be measured; Multiteeth indexing table is arranged on Homothermal Proof Box inside and is electrically connected by cable with the data acquisition control computing machine; Be provided with optical window on the sidewall of Homothermal Proof Box; Transit to be measured is arranged on the multiteeth indexing table; Autocollimator is relative with plane mirror and be in isometry position by optical window; The data acquisition control computing machine links to each other with multiteeth indexing table and autocollimator respectively.
The accuracy test system also comprises the alidade fixed support one survey time of transit level under the extreme temperature conditions; Transit to be measured is arranged on the multiteeth indexing table by the alidade fixed support; Plane mirror is located on the sidewall of alidade fixed support upper end.
The utility model is elaborated below in conjunction with accompanying drawing:
Referring to Fig. 1, the utility model provides the system of one survey time of transit level accuracy test under a kind of extreme temperature conditions, and the instrument and equipment used of accuracy test system comprises multiteeth indexing table 1, alidade fixed support 2, transit to be measured 3, plane mirror 4, Homothermal Proof Box 5, optical window 6, cable-through hole 7, autocollimator 8 and computing machine 9 one survey time of transit level under this extreme temperature conditions.Multiteeth indexing table under this extreme temperature conditions in one survey time of the transit level accuracy test system places in the Homothermal Proof Box, and its data line links to each other with computing machine by cable-through hole; Transit to be measured places on the multiteeth indexing table table top, the upper side of its alidade plane mirror that is connected, and be fixed together by fixed support and multiteeth indexing table table top outer base; On plane mirror and optical window, the same light path in autocollimator place; The data line of autocollimator also links to each other with computing machine.
Multiteeth indexing table 1 is the automatically controlled multiteeth indexing table that wholecircle 23 is divided equally, and it is 0.1 that angle is divided equally precision ", can be by its rotation of computer control, location and data acquisition, to guarantee high automation and the high precision of test.
Alidade fixed support 2 is supports of fixing transit alidade to be measured for test process, be fixed together with multiteeth indexing table table top outer base, so that the multiteeth indexing table table top is when rotating, the relative backward rotation respective angles of transit alidade to be measured is to guarantee the high stability of test.
The volume of Homothermal Proof Box 5 is 400 liters～500 liters, and the Temperature Setting scope is-55 ℃～+ 80 ℃, and temperature stability is ± 0.5 ℃, to guarantee the high stability of ambient condition in the test process.
Cable-through hole 7 is installed on the side of Homothermal Proof Box, is to pass through the hole for what power lead was connected with data line, to guarantee power supply, control and the data transmission under the extreme temperature conditions.
Autocollimator 8 is Two-Axis Autocollimator, automatically gathering autocollimation by CCD looks like to test, provide measured value, can flatten transit to be measured by tower is poor, and the low-angle side-play amount of monitoring alidade in test process, angle measurement accuracy is 0.1 ", to guarantee high stability and the high precision of test.
Computing machine 9 is equipped with testing software, can control multiteeth indexing table and rotate, and gathers the angle-data of multiteeth indexing table and the measurement data of autocollimator, and calculates test result in conjunction with transit registration to be measured, to guarantee the high automation of test.
Settle testing apparatus according to Fig. 1, principle of work is: at Homothermal Proof Box 5 interior arrangement multiteeth indexing tables 1, by cable-through hole 7, connect the cable between multiteeth indexing table 1 and the computing machine 9; The corner of multiteeth indexing table 1 is made zero, set up transit 3 to be measured at its table top, make both coaxial; At the upper side of the alidade of the transit 3 to be measured plane mirror 4 that is connected, minute surface should over against optical window 6, use level roughly to flatten transit 3 to be measured; At Homothermal Proof Box 5 lateral surfaces, set up autocollimator 8 with plane mirror 4 equal-height positions, with its object lens alignment surface catoptron 4, connect the cable between autocollimator 8 and the computing machine 9; Close the chamber door of Homothermal Proof Box 5, set test parameters, test; After temperature reaches the testing requirements temperature and keeps the corresponding time, test, and guarantee temperature stabilization in the whole test process; During test, open chamber door, the action pane by Homothermal Proof Box 5 fronts operates, and according to the measured value of autocollimator 8Y to pitching, in conjunction with the rotation of multiteeth indexing table 1, regulates simultaneously the foot screw of transit 3 to be measured, with tower is poor transfers to 0.2 '～2 '; Make the orientation locking knob of transit 3 to be measured keep releasing orientation, alidade fixed support 2 is tightened up the alidade of transit 3 to be measured, begin test.
Rotate multiteeth indexing table 1 one fixed angles (corner is 360 °/23 multiple), record corner α
b, transit 3 to be measured orientation indicating value α
IjThe alidade low-angle offset α that records to the orientation with autocollimator 8X
iThe forward counter-rotating is respectively surveyed a week, detects 46 points, according to formula
And formula
Calculate respectively the error of division and the deflection error of each check point; Deflection error the most at last
Survey time counts m and the detection n that counts and brings one survey time of following formula calculated level precision μ into
H:
Claims (10)
- Under the extreme temperature conditions one survey time of transit level the accuracy test system, it is characterized in that: the accuracy test system comprises data acquisition control computing machine, autocollimator, Homothermal Proof Box, multiteeth indexing table and the plane mirror that is fixedly connected with transit to be measured one survey time of transit level under the described extreme temperature conditions; Described multiteeth indexing table is arranged on Homothermal Proof Box inside and is electrically connected by cable with the data acquisition control computing machine; Be provided with optical window on the sidewall of described Homothermal Proof Box; Transit to be measured is arranged on the multiteeth indexing table; Described autocollimator is relative with plane mirror and be in isometry position by optical window; Described data acquisition control computing machine links to each other with multiteeth indexing table and autocollimator respectively.
- Under the extreme temperature conditions according to claim 1 one survey time of transit level the accuracy test system, it is characterized in that: the accuracy test system also comprises the alidade fixed support one survey time of transit level under the described extreme temperature conditions; Described transit to be measured is arranged on the multiteeth indexing table by the alidade fixed support; Described plane mirror is located on the support bracket fastened sidewall of alidade.
- Under the extreme temperature conditions according to claim 2 one survey time of transit level the accuracy test system, it is characterized in that: described transit to be measured and the coaxial setting of multiteeth indexing table.
- Under the extreme temperature conditions according to claim 3 one survey time of transit level the accuracy test system, it is characterized in that: also comprise cable-through hole on the described Homothermal Proof Box; The cable of described connection multiteeth indexing table and data acquisition control computing machine passes cable-through hole.
- According to claim 1 and 2 or under the 3 or 4 described extreme temperature conditions one survey time of transit level the accuracy test system, it is characterized in that: described autocollimator is Two-Axis Autocollimator.
- Under the extreme temperature conditions according to claim 5 one survey time of transit level the accuracy test system, it is characterized in that: described Two-Axis Autocollimator can be ± 15 ' the visual field in provide simultaneously X-direction measurement of bearing value and Y-direction pitching measured value.
- Under the extreme temperature conditions according to claim 6 one survey time of transit level the accuracy test system, it is characterized in that: the angle measurement accuracy of described Two-Axis Autocollimator is 0.1 ".
- Under the extreme temperature conditions according to claim 7 one survey time of transit level the accuracy test system, it is characterized in that: described multiteeth indexing table is automatically controlled multiteeth indexing table, it is 0.1 that the angle of described multiteeth indexing table is divided equally precision ".
- Under the extreme temperature conditions according to claim 8 one survey time of transit level the accuracy test system, it is characterized in that: the RMS value of the surface figure accuracy of described plane mirror is λ/20, the reflectivity of described plane mirror is 99%.
- Under the extreme temperature conditions according to claim 9 one survey time of transit level the accuracy test system, it is characterized in that: the Temperature Setting scope of described Homothermal Proof Box is-55 ℃～+ 80 ℃, the temperature stability of described Homothermal Proof Box is ± 0.5 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511774 CN202885836U (en) | 2012-10-08 | 2012-10-08 | Theodolite level one circle measurement precision testing system under extreme temperature condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511774 CN202885836U (en) | 2012-10-08 | 2012-10-08 | Theodolite level one circle measurement precision testing system under extreme temperature condition |
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| Publication Number | Publication Date |
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| CN202885836U true CN202885836U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511774 Expired - Fee Related CN202885836U (en) | 2012-10-08 | 2012-10-08 | Theodolite level one circle measurement precision testing system under extreme temperature condition |
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| CN (1) | CN202885836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927992A (en) * | 2012-10-08 | 2013-02-13 | 中国科学院西安光学精密机械研究所 | Horizontal one-observation set accuracy testing system of theodolite at extreme temperature |
| CN112212885A (en) * | 2019-07-10 | 2021-01-12 | 九江精密测试技术研究所 | Vertical angle calibrating installation of theodolite |
-
2012
- 2012-10-08 CN CN 201220511774 patent/CN202885836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927992A (en) * | 2012-10-08 | 2013-02-13 | 中国科学院西安光学精密机械研究所 | Horizontal one-observation set accuracy testing system of theodolite at extreme temperature |
| CN112212885A (en) * | 2019-07-10 | 2021-01-12 | 九江精密测试技术研究所 | Vertical angle calibrating installation of theodolite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20161008 |