CN101858737A - Center deviation detecting method of optical prism - Google Patents
Center deviation detecting method of optical prism Download PDFInfo
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- CN101858737A CN101858737A CN200910049040A CN200910049040A CN101858737A CN 101858737 A CN101858737 A CN 101858737A CN 200910049040 A CN200910049040 A CN 200910049040A CN 200910049040 A CN200910049040 A CN 200910049040A CN 101858737 A CN101858737 A CN 101858737A
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- prism
- reflecting surface
- supporting surface
- angle
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Abstract
The invention relates to an optical prism, in particular to a deviation detecting method of the optical prism. The method comprises the following steps of: detecting the self eccentricities of a support face rotating shaft and a reflecting face rotating shaft; detecting deviation between a support face rotating center and a reflecting face rotating center; and judging the prism. The invention ensures the use accuracy of the prism and improves the measuring precision.
Description
Technical field
The present invention relates to optical prism, relate in particular to a kind of deviation detecting method of optical prism.
Background technology
Optical prism is intended for the utensil of total station survey reflectance target, its structure is that the reflection position can rotate freely around two axles, and its reflection kernel remains unchanged, the reflecting surface rotation center of prism should overlap with the supporting surface rotation center of prism theoretically, but prism is in manufacturing, carrying and use, often there is deviation,, could guarantees the accuracy that prism uses so should adopt specific method to measure the optical prism centre deviation.
The method that does not also have at present the calibrating of optical prism centre deviation in industry, during measuring, civil engineering often ignores the influence of this constant, in measuring, the not high civil engineering of accuracy requirement still can, but for the higher project of accuracy requirement, particularly accurate commercial measurement project, then should not ignore the influence of this deviation, otherwise cause measuring error bigger.
Summary of the invention
The present invention is intended to solve the defective of above-mentioned prior art, and a kind of optical prism centre deviation detection method is provided.The present invention guarantees the accuracy that prism uses, and improves the precision of measuring.
The present invention is achieved in that
A kind of optical prism centre deviation detection method, it comprises:
Two axles, the i.e. verification step of supporting surface turning axle and reflecting surface turning axle self off-centre;
The verification step of the deviation between supporting surface rotation center and the reflecting surface rotation center; With,
The prism determination step.
Described optical prism centre deviation detection method, the verification step of described supporting surface turning axle and reflecting surface turning axle self off-centre comprises:
A is erected at guide field 0 to two total powerstations respectively
#Observation pier and guide field 2
#Observation pier, prism holder to be identified are located on the guide field 1# observation pier, and the three is accurately flattened;
15 ℃, 1013hpa that b is set to temperature, the atmospheric pressure of two total powerstations respectively, reflectance target is elected the prism pattern as, corrects constant and is shown as 0.0mm automatically, and measurement pattern is elected accurate measurement pattern as;
The c instrument is 0
#The accurate alignment prism of some center measures 0
#-1
#Between horizontal range 10 times and calculate flat
Value S
01Observation pier 0
#, 1
#Between actual distance be given value S
01'; If
180 ° of d rotating prism supporting surfaces make instrument 2
#The accurate alignment prism of some center measures 2
#-1
#Between horizontal range 10 times and calculating mean value
Observation pier 1
#, 2
#Between actual distance be given value S
12' establish
E forwards prism to original state, and the rotating prism reflecting surface is 180 ° then, again at the accurate alignment prism of 2# point center, measures 2
#-1
#Between horizontal range 10 times and calculating mean value
If
F supporting surface rotating shaft eccentric r
Computing formula: r
=d
1-d
0
Reflecting surface rotating shaft eccentric r
InsteadComputing formula: r
Instead=d
2-d
0
Described optical prism centre deviation detection method, the verification step of the deviation between supporting surface rotation center and the reflecting surface rotation center comprises:
The g instrument stand is located at 0
#Pier, the reflecting surface, supporting surface that make prism are measured the horizontal range s and the level angle α of reflection kernel all over against total powerstation;
H horizontally rotates prism clockwise along the supporting surface turning axle, makes the angle of reflecting surface and total powerstation near 45 °, measures the level angle α of this moment
1, rotate counterclockwise returning face plate then, on another 45 ° of directions, measure an angle [alpha] again
2
I allows prism get back to initial position, 2
#Pier sets up total powerstation, again that the prism supporting surface is motionless, rotate 180 ° along the reflecting surface turning axle, all the step of repetition a-b once, in the difference of twice measurement: angle limit difference is 6 seconds, and distance limit difference is 0.3mm, and the part that exceeds the limit difference must be resurveyed, till qualified, end product is got the mean value of twice measurement;
The j calculation procedure
Supporting surface and reflecting surface centre deviation computing formula:
S, α represent that instrument stand is located at 0
#Horizontal range and level angle that pier is measured during over against reflecting surface;
α
1The level angle of measuring when expression horizontally rotates prism clockwise near 45 °;
r
1Expression horizontally rotates prism clockwise near the supporting surface and the reflecting surface centre deviation that calculate after 45 °;
α
2The level angle of measuring when expression horizontally rotates prism counterclockwise near 45 °;
r
2Expression horizontally rotates prism counterclockwise near the supporting surface and the reflecting surface centre deviation that calculate after 45 °;
K is as the eccentric r of supporting surface
When surpassing 1mm, this prism is not suitable for independent rotational support face angle above 10 degree in measuring process, as the eccentric r of reflecting surface
InsteadWhen surpassing 1mm, this returning face plate is not suitable for rotating separately the reflecting surface angle above 10 degree in measuring process;
H works as r
And r
InsteadAll above 1mm, but r
+ r
Instead=0, this prism (two faces rotate simultaneously near 180 degree) under given conditions uses;
I is not when needing to rotate, to r
And r
InsteadAll requirements without limits;
J works as prism
When surpassing 1mm, should on prism, carry out sign, perhaps carry out the filing of data, so that distinguish when using by the prism numbering.
The present invention is in order to work out a kind of method of optical prism centre deviation calibrating, be that optical prism reflecting surface rotation center, supporting surface rotation center self reach the method for deviation each other, thereby grasp the performance of optical prism, be used for using the measurement project of optical prism.Purpose is for the accuracy that guarantees that prism uses, and improves the precision of measuring.
Embodiment
A kind of optical prism centre deviation of the present invention detection method, it comprises:
Calibrating should select prism the time as far as possible the cloudy day or fine morning temperature more even, and atmosphere refractive power influence carries out minimum the time, should not be selected in and carry out high noon.
The method of examining and determine two axles (supporting surface turning axle and reflecting surface turning axle) self off-centre is as follows:
Come card TCA2003 total powerstation is erected at guide field 0# observation pier, and the TDA5005 total powerstation is erected at guide field 2# observation pier, and prism holder to be identified is located on the guide field 1# observation pier, and the three is accurately flattened.
With 15 ℃, 1013hpa that temperature, the atmospheric pressure of two total powerstations is set to respectively, reflectance target is elected prism (Prism) pattern as, corrects constant and is shown as 0.0mm automatically, and measurement pattern is elected accurate measurement pattern as.
Instrument is 0
#The accurate alignment prism of some center, horizontal range 10 times and calculating are average between the mensuration 0#-1#
S
01Observation pier 0
#, 1
#Between actual distance be given value S
01'; If
180 ° of rotating prism supporting surfaces make instrument at the accurate alignment prism of 2# point center, measure 2
#-1
#Between horizontal range 10 times and calculating mean value
Actual distance between observation pier 1#, the 2# is given value S
12' establish
E forwards prism to original state, and the rotating prism reflecting surface is 180 ° then, again 2
#The accurate alignment prism of some center measures 2
#-1
#Between horizontal range 10 times and calculating mean value
If
F supporting surface rotating shaft eccentric computing formula: r
=d
1-d
0
Reflecting surface rotating shaft eccentric computing formula: r
Instead=d
2-d
0
The method of the deviation between calibrating supporting surface rotation center and the reflecting surface rotation center is as follows:
The a instrument stand is located at the 0# pier, and the reflecting surface, supporting surface that make prism are measured the horizontal range s and the level angle α of reflection kernel all over against total powerstation;
B horizontally rotates prism clockwise along the supporting surface turning axle, makes the angle of reflecting surface and total powerstation near 45 °, measures the level angle α of this moment
1, rotate counterclockwise returning face plate then, on another 45 ° of directions, measure an angle [alpha] again
2
C allows prism get back to initial position, set up total powerstation at the 2# pier, again that the prism supporting surface is motionless, rotate 180 ° along the reflecting surface turning axle, the step that all repeats a-b once, in the difference of twice measurement: angle limit difference is 6 seconds, distance limit difference is 0.3mm, the part that exceeds the limit difference must be resurveyed, and till qualified, end product is got the mean value of twice measurement.
The d calculation procedure
Supporting surface and reflecting surface centre deviation computing formula:
(1) as the eccentric r of supporting surface
When surpassing 1mm, this prism is not suitable for independent rotational support face angle above 10 degree in measuring process, as the eccentric r of reflecting surface
InsteadWhen surpassing 1mm, this returning face plate is not suitable for rotating separately the reflecting surface angle above 10 degree in measuring process;
(2) work as r
And r
InsteadAll above 1mm, but r
+ r
Instead=0, this prism (two faces rotate simultaneously near 180 degree) under given conditions uses.
(3) when not needing to rotate, to r
And r
InsteadAll requirements without limits.
(4) when prism
When surpassing 1mm, should on prism, carry out sign (perhaps carrying out the filing of data), so that distinguish during use by the prism numbering.
Claims (4)
1. optical prism centre deviation detection method is characterized in that it comprises:
Two axles, the i.e. verification step of supporting surface turning axle and reflecting surface turning axle self off-centre;
The verification step of the deviation between supporting surface rotation center and the reflecting surface rotation center; With,
The prism determination step.
2. according to the described optical prism centre deviation of claim 1 detection method, it is characterized in that the verification step of described supporting surface turning axle and reflecting surface turning axle self off-centre comprises:
A is erected at guide field 0 to two total powerstations respectively
#Observation pier and guide field 2
#Observation pier, prism holder to be identified are located on the guide field 1# observation pier, and the three is accurately flattened;
15 ℃, 1013hpa that b is set to temperature, the atmospheric pressure of two total powerstations respectively, reflectance target is elected the prism pattern as, corrects constant and is shown as 0.0mm automatically, and measurement pattern is elected accurate measurement pattern as;
The c instrument is 0
#The accurate alignment prism of some center measures 0
#-1
#Between horizontal range 10 times and calculate flat
Value S
01Observation pier 0
#, 1
#Between actual distance be given value S
01'; If
180 ° of d rotating prism supporting surfaces make instrument 2
#The accurate alignment prism of some center measures 2
#-1
#Between horizontal range 10 times and calculating mean value
Observation pier 1
#, 2
#Between actual distance be given value S
12' establish
E forwards prism to original state, and the rotating prism reflecting surface is 180 ° then, again at the accurate alignment prism of 2# point center, measures 2
#-1
#Between horizontal range 10 times and calculating mean value
If
F supporting surface rotating shaft eccentric r
Computing formula: r
=d
1-d
0
Reflecting surface rotating shaft eccentric r
InsteadComputing formula: r
Instead=d
2-d
0
3. optical prism centre deviation detection method according to claim 1 is characterized in that, the verification step of the deviation between supporting surface rotation center and the reflecting surface rotation center comprises:
The g instrument stand is located at 0
#Pier, the reflecting surface, supporting surface that make prism are measured the horizontal range s and the level angle α of reflection kernel all over against total powerstation;
H horizontally rotates prism clockwise along the supporting surface turning axle, makes the angle of reflecting surface and total powerstation near 45 °, measures the level angle α of this moment
1, rotate counterclockwise returning face plate then, on another 45 ° of directions, measure an angle [alpha] again
2
I allows prism get back to initial position, 2
#Pier sets up total powerstation, again that the prism supporting surface is motionless, rotate 180 ° along the reflecting surface turning axle, all the step of repetition a-b once, in the difference of twice measurement: angle limit difference is 6 seconds, and distance limit difference is 0.3mm, and the part that exceeds the limit difference must be resurveyed, till qualified, end product is got the mean value of twice measurement;
The j calculation procedure
Supporting surface and reflecting surface centre deviation computing formula:
S, α represent that instrument stand is located at 0
#Horizontal range and level angle that pier is measured during over against reflecting surface;
α
1The level angle of measuring when expression horizontally rotates prism clockwise near 45 °;
r
1Expression horizontally rotates prism clockwise near the supporting surface and the reflecting surface centre deviation that calculate after 45 °;
α
2The level angle of measuring when expression horizontally rotates prism counterclockwise near 45 °;
r
2Expression horizontally rotates prism counterclockwise near the supporting surface and the reflecting surface centre deviation that calculate after 45 °;
The mean value of expression both direction is because r
1And r
2Symbol is just in time opposite, so be "-" number.
4. optical prism centre deviation detection method according to claim 1 is characterized in that, described prism determination step comprises:
K is as the eccentric r of supporting surface
When surpassing 1mm, this prism is not suitable for independent rotational support face angle above 10 ° in measuring process, as the eccentric r of reflecting surface
InsteadWhen surpassing 1mm, this returning face plate is not suitable for rotating separately the reflecting surface angle above 10 ° in measuring process;
H works as r
And r
InsteadAll above 1mm, but r
+ r
Instead=0, this prism can be under given conditions: two faces rotate simultaneously near 180 ° of uses;
I is not when needing to rotate, to r
And r
InsteadAll requirements without limits;
J works as prism
When surpassing 1mm, should on prism, carry out sign, perhaps carry out the filing of data, so that distinguish when using by the prism numbering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910049040 CN101858737B (en) | 2009-04-09 | 2009-04-09 | Center deviation detecting method of optical prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910049040 CN101858737B (en) | 2009-04-09 | 2009-04-09 | Center deviation detecting method of optical prism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858737A true CN101858737A (en) | 2010-10-13 |
| CN101858737B CN101858737B (en) | 2013-10-02 |
Family
ID=42944778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910049040 Active CN101858737B (en) | 2009-04-09 | 2009-04-09 | Center deviation detecting method of optical prism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564352A (en) * | 2010-12-31 | 2012-07-11 | 北京国科世纪激光技术有限公司 | Device and method for measuring angle of coated surface of polarized beam splitter |
| CN110044380A (en) * | 2019-04-19 | 2019-07-23 | 武汉地震计量检定与测量工程研究院有限公司 | A kind of prism of corner cube absolute constant measurement method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007155413A (en) * | 2005-12-01 | 2007-06-21 | Nidek Co Ltd | Lens meter |
| CN201133960Y (en) * | 2007-09-10 | 2008-10-15 | 唐发志 | Levelling range finder prism |
| CN101672640B (en) * | 2008-09-12 | 2012-09-05 | 上海市机械施工有限公司 | Method for improving measurement precision by regulating prism |
| CN101685011B (en) * | 2008-09-27 | 2012-07-04 | 上海市机械施工有限公司 | Precise levelling method by total station |
-
2009
- 2009-04-09 CN CN 200910049040 patent/CN101858737B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564352A (en) * | 2010-12-31 | 2012-07-11 | 北京国科世纪激光技术有限公司 | Device and method for measuring angle of coated surface of polarized beam splitter |
| CN102564352B (en) * | 2010-12-31 | 2014-09-10 | 北京国科世纪激光技术有限公司 | Device and method for measuring angle of coated surface of polarized beam splitter |
| CN110044380A (en) * | 2019-04-19 | 2019-07-23 | 武汉地震计量检定与测量工程研究院有限公司 | A kind of prism of corner cube absolute constant measurement method |
| CN110044380B (en) * | 2019-04-19 | 2020-09-04 | 武汉地震计量检定与测量工程研究院有限公司 | Pyramid prism absolute constant measuring method |
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| Publication number | Publication date |
|---|---|
| CN101858737B (en) | 2013-10-02 |
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