CN206300636U - A kind of theodolite with distance measurement function - Google Patents
A kind of theodolite with distance measurement function Download PDFInfo
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- CN206300636U CN206300636U CN201621406825.4U CN201621406825U CN206300636U CN 206300636 U CN206300636 U CN 206300636U CN 201621406825 U CN201621406825 U CN 201621406825U CN 206300636 U CN206300636 U CN 206300636U
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- polarization splitting
- splitting prism
- lens
- laser
- theodolite
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Abstract
The utility model is related to a kind of theodolite with distance measurement function, including laser transmitting system, laser receiver system, telescopic system；Laser transmitting system includes generating laser, is placed in the convergent lens of the generating laser front end, is placed in the first polarization splitting prism of the convergent lens front end, and generating laser, convergent lens, the first polarization splitting prism are coaxially disposed；Laser receiver system includes laser pickoff, is placed in the total reflection flat board of the first polarization splitting prism side；Telescopic system includes the eyepiece, the second polarization splitting prism, the object lens that sequentially coaxially set, and the second polarization splitting prism is coaxially disposed with generating laser, the first polarization splitting prism simultaneously；It is engaged with the second polarization splitting prism by the first polarization splitting prism so that the theodolite possesses to point and distance measurement function.
Description
Technical field
The utility model is related to laser measuring equipment technical field, particularly a kind of theodolite with distance measurement function.
Background technology
Electronic theodolite can be widely applied to the engineering survey of the aspects such as railway, highway, bridge, water conservancy, mine, it is also possible to
In the various engineering measurements such as building, large scale equipment installation.In control measurement and engineering survey, angular surveying is a most base
This maximum amount of observation work, precise electronic theodolite is the most frequently used instrument of current angular surveying.
However, theodolite telescope during the target alignment particularly in distant object alignment procedures, it is necessary to repeatedly
Operation, to using making troubles；The measurement such as tunnel, culvert, mine is the work very high of a danger, shortens time of measuring,
Efficiency can not only be improved, while the safety of worker can be protected effectively.And existing theodolite does not have distance measurement function, having
A little specific application scenarios need to find range the target in a distant place, when such as having setting-out work in engineering, it usually needs coordinate
Tape measure works.But tape measure, apart from limited, measurement error, the factor influence of human error is very big, actually used very not square
Just.Traditional theodolite can be found range using subtense technique, it is necessary to using stadia rod, crosshair in theodolite telescope be used during range finding
The silk of two hyphens up and down, the difference and some other data of two numbers up and down read on stadia rod, you can calculate placement instrument
Horizontal range and the discrepancy in elevation of the device point to point of staff.This method is similarly subjected to human error, the influence of method error, resultant error
It is larger.Also a kind of electronic theodolite scheme for possessing distance measurement function, actually uses electronic theodolite and coordinates rangefinder,
Realize distance measurement function；This method shortcoming closely exists to putting and finding range not coaxial it is also obvious that the system is different axle system
Problem；Volume is big, and high cost is, it is necessary to extra support and the communications cable.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple structure, can easily be accommodated and with distance measurement function
Theodolite.
In order to solve the above technical problems, the theodolite with distance measurement function that the utility model is provided, including：Laser emission
System, laser receiver system, telescopic system；The laser transmitting system includes the Laser emission for launching emergent ray
Device, the convergent lens for being placed in the generating laser front end, the first polarization splitting prism for being placed in the convergent lens front end, it is described to swash
Optical transmitting set, convergent lens, the first polarization splitting prism are coaxially disposed；The laser receiver system includes laser pickoff, puts
In the total reflection flat board of the first polarization splitting prism side, so that the emergent ray that the laser transmitter projects go out is through
Enter the total reflection flat board after the reflection of one polarization splitting prism, and by the total reflection flat reflective to the laser pick-off
Device, for forming interior light path；The telescopic system includes the eyepiece, the second polarization splitting prism, the object lens that sequentially coaxially set,
And second polarization splitting prism is coaxially disposed with the generating laser, the first polarization splitting prism simultaneously, so that described
The emergent ray that laser transmitter projects go out reaches the second polarization splitting prism after being transmitted through the first polarization splitting prism, by second
Polarization splitting prism is transmitted to the surface of target object to be determined after being reflected through object lens, is completed to a function；By to be determined
The reflection light that target object is reflected enters the second polarization splitting prism through object lens, reflexes to the first polarization splitting prism,
The total reflection flat board is reflected into by the first polarization splitting prism, and by the total reflection flat reflective to the laser pick-off
Device, forms outer light path；Distance measurement function is realized according to the phase difference between interior light path and outer light path by the laser pickoff.
Further, the theodolite with distance measurement function is also included for amplifying the emergent light that the laser transmitter projects go out
Line, moveable pattern lens, the pattern lens are moved to when between the convergent lens and the first polarization splitting prism,
So that the concentrated lens of emergent ray that laser transmitter projects go out carry out reducing amplification after entering line convergence by the pattern lens,
It is easy to emergent ray to be directed at target object to be determined after being gone out through the first polarization splitting prism, the second polarization splitting prism, object lens
Surface.
Further, the pattern lens are concavees lens, and the concavees lens are driven by motor, so that the concavees lens are movable to
Between the convergent lens and the first polarization splitting prism, and it is coaxially disposed with the convergent lens, the first polarization splitting prism,
The convenient reducing for realizing emergent ray amplifies.
Further, focusing lens is set between second polarization splitting prism and the object lens, the focusing lens and institute
State eyepiece, object lens to be coaxially disposed, the focal length for adjusting telescopic system.
Further, light damping plate is set between first polarization splitting prism and the second polarization splitting prism, for carrying out
Increase and decrease light, to control the intensity of emergent ray, reflection light.
The method of work of the above-mentioned theodolite with distance measurement function, comprises the following steps：
A, start theodolite, when selection is to function, drive concavees lens to leave the axis of generating laser by motor, by swashing
The concentrated lens of emergent ray that optical transmitting set is launched are transmitted to the first polarization splitting prism, by first after entering line convergence collimation
The emergent ray that polarization splitting prism is transmitted is transmitted to the second polarization splitting prism after being adjusted through light damping plate, inclined by second
The Amici prism that shakes is reflected to be transmitted to target object to be measured through object lens, completes remote laser to point.
When B, above-mentioned theodolite selection distance measurement function, drive concavees lens coaxial with generating laser, convergent lens by motor
Set, so as to entered to be transmitted to concavees lens after line convergence is collimated by the concentrated lens of emergent ray that laser transmitter projects go out carry out
Light beam amplifies, and the emergent ray after amplification is transmitted to the first polarization splitting prism, and the emergent ray part is by the first polarization spectro
Enter total reflection flat board after prismatic reflection, and by total reflection flat reflective to laser pickoff, for forming interior light path；The outgoing
Light portion is transmitted to the second polarization splitting prism after being adjusted through light damping plate after being transmitted by the first polarization splitting prism, by the
Two polarization splitting prisms are reflected transmits the centering that target object is completed to target object to be measured through object lens, and emergent ray is passed
Deliver to target object rear portion to be measured point emergent ray to be reflected, the reflection light of formation backs into the second polarization spectro through object lens
Prism, adjusts back reflection to the first polarization splitting prism, by the first polarization spectro rib by the second polarization splitting prism through light damping plate
Mirror is reflected into the total reflection flat board, and forms outer light path to the laser pickoff by the total reflection flat reflective；By
Laser pickoff, phase measuring circuit, processor module are engaged, and are calculated according to the phasometer between interior light path and outer light path
The distance between target object to be determined and theodolite, realize long-distance ranging function.
The technique effect of utility model：（1）Theodolite with distance measurement function of the present utility model, relative to existing skill
Art, is engaged by the first polarization splitting prism with the second polarization splitting prism so that the theodolite possesses to work(of putting and find range
Energy；（2）Moveable pattern lens are set between convergent lens and the first polarization splitting prism, and theodolite needs the mesh to distant place
When mark is found range, the diameter of emergent ray can be adjusted by pattern lens so that emergent ray is easy to be directed at target object to be measured,
Difficulty is sighted in reduction, improves detection efficiency；（3）Pattern lens select concavees lens, simple structure, it is easy to manipulate.
Brief description of the drawings
The utility model is described in further detail with reference to Figure of description：
Fig. 1 is the cross-sectional view of the theodolite that the utility model has distance measurement function；
Fig. 2 is the cross-sectional view of laser transmitting system of the present utility model and laser receiver system.
In figure：Generating laser 1, convergent lens 2, concavees lens 3, the first polarization splitting prism 4, light damping plate 5, total reflection is flat
Plate 6, laser pickoff 7, processor module 8, emergent ray 11, reflection light 12, eyepiece 20, object lens 21, the second polarization spectro
Prism 22, focusing lens 23.
Specific embodiment
Embodiment 1 as shown in Figure 1 to Figure 2, the theodolite with distance measurement function of the present embodiment, including Laser emission system
System, laser receiver system, telescopic system；Laser transmitting system includes the generating laser 1 for launching emergent ray 11, should
The front end of generating laser 1 is provided for compressing the convergent lens 2 of the angle of divergence of emergent ray 11, and the front end of the convergent lens 2 sets
The first polarization splitting prism 4 is put, generating laser 1, convergent lens 2, the first polarization splitting prism 4 are coaxially disposed；Convergent lens 2
Moveable concavees lens 3 are set between the first polarization splitting prism 4, for amplifying the emergent light that generating laser 1 is launched
Line 11；The concavees lens are driven by motor, and the concavees lens are moved between the polarization splitting prism 4 of convergent lens 2 and first, and participant
When poly- lens 2, the first polarization splitting prism 4 are coaxially disposed, easily the emergent ray 11 by the concavees lens can be become
Amplify in footpath.
Laser receiver system includes laser pickoff 7 and the total reflection flat board 6 located at the side of the first polarization splitting prism 4,
So that the emergent ray 11 that generating laser 1 is launched enters total reflection flat board 6 after being reflected through the first polarization splitting prism 4, and
Laser pickoff 7 is reflexed to by total reflection flat board 6, for forming interior light path.
Telescopic system includes the eyepiece 20, the second polarization splitting prism 22, the object lens 21 that sequentially coaxially set, and second inclined
The Amici prism 22 that shakes is coaxially disposed with generating laser 1, the first polarization splitting prism 4 simultaneously, so that generating laser 1 is launched
Emergent ray 11 through the first polarization splitting prism 4 transmit after reach the second polarization splitting prism 22, by the second polarization spectro rib
Mirror 22 is transmitted to the surface of target object to be determined after being reflected through object lens 21, is completed to a function；By object to be determined
The reflection light 12 that body is reflected enters the second polarization splitting prism 22 through object lens 21, reflexes to the first polarization splitting prism 4,
It is reflected into being totally reflected flat board 6 by the first polarization splitting prism 4, and laser pickoff 7 is reflexed to by total reflection flat board 6, is formed
Outer light path；Focusing lens 23, the focusing lens 23 and eyepiece 20, object lens are set between the second polarization splitting prism 22 and object lens 21
21 are coaxially disposed, the focal length for adjusting telescopic system；Between first polarization splitting prism 4 and the second polarization splitting prism 22
Light damping plate 5 is set, for carrying out increase and decrease light, to control the intensity of emergent ray 11, reflection light 12.Laser pickoff 7 and use
The phase measuring circuit electrical connection of the phase difference of light path and outer light path in obtaining, phase measuring circuit and the electricity of processor module 8
Connection, so that processor module 8 can calculate target object to be determined with warp according to the phasometer between interior light path and outer light path
The distance between latitude instrument.
Above-mentioned processor module 8 can be realized using single-chip microcomputer or DSP module, such as DSP2812, generating laser
1 can be realized using LT022MC.
Embodiment 2
The method of work of the above-mentioned theodolite with distance measurement function, comprises the following steps：
A, when there should be theodolite selection of distance measurement function to function, concavees lens are driven to leave generating laser by motor
1 axis, the concentrated lens 2 of emergent ray 11 launched by generating laser 1 enter after line convergence collimation to transmit to first inclined
Shaken Amici prism 4, and the emergent ray 11 transmitted by the first polarization splitting prism 4 is transmitted to after being adjusted through light damping plate 5
Two polarization splitting prisms 22, are reflected by the second polarization splitting prism 22 and are transmitted to target object to be measured through object lens, complete remote
Cheng Jiguang is to point.
When B, the theodolite with distance measurement function select distance measurement function, concavees lens 3 and generating laser are driven by motor
1st, convergent lens 2 is coaxially disposed, so that it is accurate to enter line convergence by the concentrated lens 2 of emergent ray 11 that generating laser 1 is launched
Being transmitted to concavees lens 3 after straight carries out light beam amplification, and the emergent ray 11 after amplification is transmitted to the first polarization splitting prism 4, and this goes out
Penetrate after the part of light 11 is reflected by the first polarization splitting prism 4 and enter total reflection flat board 6, and reflexed to by total reflection flat board 6 sharp
Optical receiver 7, for forming interior light path；The part of emergent ray 11 is entered after being transmitted by the first polarization splitting prism 4 through light damping plate 5
Transmitted to the second polarization splitting prism 22 after row regulation, reflected by the second polarization splitting prism 22 and transmitted to be measured through object lens
Target object, completes the centering of target object, and it is anti-that emergent ray 11 is sent to target object rear portion to be measured point emergent ray 11
Penetrate, the reflection light 12 of formation backs into the second polarization splitting prism 22 through object lens 21, is passed through by the second polarization splitting prism 22
Light damping plate 5 adjusts back reflection to the first polarization splitting prism 4, and it is flat to be reflected into the total reflection by the first polarization splitting prism 4
Plate 6, and the laser pickoff 7 is reflexed to by the total reflection flat board 6, form outer light path；Surveyed by laser pickoff 7, phase
Amount circuit, processor module 8 are engaged, according to the phasometer between interior light path and outer light path calculate target object to be determined with
The distance between theodolite, realizes long-distance ranging function.
The emergent ray 11 of enhanced processing can also be engaged with the cooperative target of peripheral hardware, especially remotely use reflective prism
It is because emergent ray is exaggerated treatment therefore relatively low to the size requirement of cooperative target during as cooperative target, even
The reflective prism of reduced size easily can be also aligned by emergent ray, reduce detection difficulty, improve detection efficiency.
Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality
With the restriction of new implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And these
Belong to obvious change or change still in protection domain of the present utility model that spirit of the present utility model amplifies out
Among.
Claims (5)
1. a kind of theodolite with distance measurement function, it is characterised in that including：Laser transmitting system, laser receiver system, look in the distance
Mirror system；The laser transmitting system includes the generating laser for launching emergent ray（1）, be placed in the generating laser
（1）The convergent lens of front end（2）, be placed in the convergent lens（2）First polarization splitting prism of front end（4）, the Laser emission
Device（1）, convergent lens（2）, the first polarization splitting prism（4）It is coaxially disposed；The laser receiver system includes laser pickoff
（7）, be placed in first polarization splitting prism（4）The total reflection flat board of side（6）, so that the generating laser（1）Transmitting
The emergent ray for going out（11）Through the first polarization splitting prism（4）Enter the total reflection flat board after reflection（6）, and be all-trans by described
Penetrate flat board（6）Reflex to the laser pickoff（7）, for forming interior light path；The telescopic system includes sequentially coaxially setting
The eyepiece put（20）, the second polarization splitting prism（22）, object lens（21）, and second polarization splitting prism（22）Simultaneously with institute
State generating laser（1）, the first polarization splitting prism（4）It is coaxially disposed, so that the generating laser（1）The outgoing launched
Light（11）Through the first polarization splitting prism（4）The second polarization splitting prism is reached after transmission（22）, by the second polarization spectro rib
Mirror（22）Through object lens after being reflected（21）Transmit to the surface of target object to be determined；Reflected by target object to be determined
Reflection light（12）Through object lens（21）Into the second polarization splitting prism（22）, reflex to the first polarization splitting prism（4）, by
First polarization splitting prism（4）It is reflected into the total reflection flat board（6）, and by the total reflection flat board（6）Reflex to described
Laser pickoff（7）, form outer light path；By the laser pickoff（7）According to the phase difference reality between interior light path and outer light path
Existing distance measurement function.
2. the theodolite with distance measurement function according to claim 1, it is characterised in that also including described swashing for amplifying
Optical transmitting set（1）The emergent ray launched（11）, moveable pattern lens.
3. the theodolite with distance measurement function according to claim 2, it is characterised in that pattern lens are concavees lens（3）,
The concavees lens（3）Driven by motor, so that the concavees lens（3）It is movable to the convergent lens（2）With the first polarization spectro
Prism（4）Between, and with the convergent lens（2）, the first polarization splitting prism（4）It is coaxially disposed.
4. the theodolite with distance measurement function according to claim 3, it is characterised in that second polarization splitting prism
（22）With the object lens（21）Between focusing lens is set（23）, the focusing lens（23）With the eyepiece（20）, object lens（21）
It is coaxially disposed.
5. the theodolite with distance measurement function according to claim 4, it is characterised in that first polarization splitting prism
（4）With the second polarization splitting prism（22）Between light damping plate is set（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406825.4U CN206300636U (en) | 2016-12-20 | 2016-12-20 | A kind of theodolite with distance measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406825.4U CN206300636U (en) | 2016-12-20 | 2016-12-20 | A kind of theodolite with distance measurement function |
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| Publication Number | Publication Date |
|---|---|
| CN206300636U true CN206300636U (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621406825.4U Active CN206300636U (en) | 2016-12-20 | 2016-12-20 | A kind of theodolite with distance measurement function |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482703A (en) * | 2016-12-20 | 2017-03-08 | 常州市新瑞得仪器有限公司 | A kind of theodolite with distance measurement function and its method of work |
| WO2019033270A1 (en) * | 2017-08-14 | 2019-02-21 | 杭州欧镭激光技术有限公司 | Laser distance measuring device and method of use thereof |
-
2016
- 2016-12-20 CN CN201621406825.4U patent/CN206300636U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482703A (en) * | 2016-12-20 | 2017-03-08 | 常州市新瑞得仪器有限公司 | A kind of theodolite with distance measurement function and its method of work |
| WO2019033270A1 (en) * | 2017-08-14 | 2019-02-21 | 杭州欧镭激光技术有限公司 | Laser distance measuring device and method of use thereof |
| US11662466B2 (en) | 2017-08-14 | 2023-05-30 | Hangzhou Ole-Systems Co., Ltd. | Laser distance measuring device and method of use thereof |
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