CN107102312A - Laser scanning measurement instrument - Google Patents
Laser scanning measurement instrument Download PDFInfo
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- CN107102312A CN107102312A CN201710417474.XA CN201710417474A CN107102312A CN 107102312 A CN107102312 A CN 107102312A CN 201710417474 A CN201710417474 A CN 201710417474A CN 107102312 A CN107102312 A CN 107102312A
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- speculum
- light source
- laser
- condenser lens
- laser scanning
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- 238000005259 measurement Methods 0.000 title claims abstract description 92
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000011900 installation process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
It is easily installed the invention discloses one kind, improves the laser scanning measurement instrument of accuracy of detection.The laser scanning measurement instrument, including light source, speculum, condenser lens, photoelectric sensor；The light source is arranged on the top for the mirror surface that speculum has；Collimation microscope group is provided between the light source and speculum；So that the measurement laser irradiation that light source is vertically sent is on the mirror, and projected in the horizontal direction by speculum reflection；The condenser lens is arranged on the top for the mirror surface that speculum has；Reception speculum is provided with above the condenser lens, there is angle α between mirror surface and level that the reception speculum has；The photoelectric sensor is located at the side for the mirror surface for receiving speculum；And cause the light beam that speculum is received by being reflexed to after condenser lens optically focused by speculum on photoelectric sensor.The measurement error that alignment error is brought efficient can be reduced using the laser scanning measurement instrument；Improve measurement accuracy.
Description
Technical field
The present invention relates to a kind of laser measuring device for measuring, especially a kind of laser scanning measurement instrument.
Background technology
It is known：Laser scanner is one kind that the work such as the size and shape of workpiece are measured using time flight theory
Instrument.Time flight theory-Time of the flight of laser is:Generating laser sends laser pulse ripple, timer internal
T1 start the clock after laser wave encounters object, portion of energy is returned, and when laser pickoff receives return laser light ripple, is stopped
Only timer internal t2, the distance of laser radar to object is:Wherein C is the light velocity.
The measuring principle of laser scanner：Generating laser sends laser pulse ripple, after laser wave encounters object, part
Energy is returned, and when laser pickoff receives return laser light ripple, and the energy of close echo is enough to trigger threshold value, laser scanner
Calculate the distance value that it arrives object；The round-the-clock transmitting laser pulse ripple of laser scanner, laser pulse ripple is beaten to be revolved in high speed
On the minute surface turned, laser pulse ripple is launched to all directions to form the scanning of a 2 dimensional region.This 2 dimensional region
Scanning can realize following two functions：1) is in the scanning range of scanner, sets protection zone of different shapes, when having
When object enters the region, alarm signal is sent；2) is in the scanning range of scanner, and scanner exports each measurement point
Distance, according to this range information, can calculate the external form profile of object, coordinate setting.
Laser scanning and ranging instrument belongs to one kind of laser scanner, and common laser scanning and ranging instrument has following two：
First, laser scanning and ranging instrument as depicted in figs. 1 and 2, the condenser lens 6 of the laser scanning and ranging instrument is arranged on instead
The side of mirror 2 is penetrated, and speculum 2 is set to taper.The speculum 2 has two reflectings surface, and one reflects upwardly, separately
One reflection is downwards；Two reflectings surface have angle, the intersection directed towards focus lens 6 of two reflectings surface.Light source 3 is arranged on
The lower section of speculum 2.Light source 2 launches laser, and laser is radiated on speculum 2, by reflective surface in the horizontal direction to focusing
Project in the direction of lens 6.It will pass through condenser lens 6 after being projected due to laser；In order to avoid laser is produced when by condenser lens 6
Raw reflection, so as to influence measurement a, it is therefore desirable to anti-interference for being easy to laser to pass through mouthful 61 is set on condenser lens 6, made
Laser is obtained to be passed through by anti-interference mouthful 61.Therefore the condenser lens 6 of the laser scanning and ranging instrument manufactures difficulty, and manufacturing cost is higher.
If setting anti-interference mouthful 61 not on condenser lens 6, then the laser that light source 3 is launched is a small amount of by that will have after condenser lens 6
Light source can reflect reflective back mirror 2, so as to cause measuring system to produce erroneous judgement；Light source is sent out by the light beam after condenser lens 6 simultaneously
Change shape, so that directional light, which is changed into diffusion shadow, rings collimator effect.
Secondly, during installation, it must assure that the optically focused focus of condenser lens 6 is located just at reflection as shown in Figure 1
On the reflecting surface of the upward reflection of mirror 2.Otherwise as shown in Fig. 2 when the optically focused focus of condenser lens 6 is located at the upward of speculum 2
, it is necessary to set the second condenser lens 52 in the top of reflecting surface during the top of the reflecting surface of reflection so that irradiation is on the reflecting surface
Astigmatism, so as to add component, light can be reduced by the focusing illumination of the second condenser lens 52 on photoelectric sensor 8
Line strength.Therefore the installation accuracy of the laser scanning and ranging instrument requires higher, installation difficulty.
Finally, due to condenser lens 6 is arranged on the side of speculum 2, therefore speculum 4 must be with during use
Condenser lens 6 is rotated together with, otherwise after speculum 2 rotates to an angle, and the laser that light source 3 is sent is after measurement target is run into
The light reflected can not be focused by condenser lens 6, therefore can not realize accurate measurement.For the ease of using,
Must in structure by speculum 2 and condenser lens 6 be set to can together with the structure that rotates, hence in so that whole laser scanning
Rangefinder it is complicated, add manufacturing cost.
Speculum 2 is set to flat inclined mirror by the 2nd, laser scanning and ranging instrument as shown in Figure 3, the laser scanning and ranging instrument,
The top of speculum 2 sets condenser lens 6, and photoelectric sensor 8 is set in the top of condenser lens 6, while the lower section of condenser lens 6
Baffle plate is provided with, the second speculum 11 is installed on baffle plate, light source 3 is arranged on the side of speculum 2, and light source 3 is sent out
The laser penetrated can be reflexed on speculum 2 by the second speculum 11, projected by the reflection levels of speculum 2.
The laser scanning and ranging instrument, due to being provided with the second speculum 11 between condenser lens 6 and speculum 2, therefore
It is complicated.The laser that light source 3 is launched simultaneously is after the reflection of the second speculum 11, it may appear that a small amount of diffused reflection is in speculum
On 2, then the diffused reflection on speculum 2 is focused on by condenser lens 6 to condenser lens 6 and is delivered to photoelectric sensor 8, from
And it is likely to result in measurement erroneous judgement.
Meanwhile, such as Chinese patent application (CN105759253A) discloses a kind of simple in construction in the prior art, can subtract
The laser scanning and ranging instrument of few measurement erroneous judgement.The laser scanning and ranging instrument includes light source 3, speculum 2, condenser lens 6, photoelectric transfer
Sensor 8；The speculum 2 has mirror surface 21；The mirror surface 21 has angle α with horizontal plane, and the angle α is sharp
Angle；It is provided with the speculum 2 in loophole 22, the loophole 21 and reflector 10 is installed；The light source 3 is arranged on anti-
Penetrate the lower section at the back side in the upper reflector face 21 of mirror 2；And cause the measurement laser 31 that light source 3 is sent through loophole 22 again by reflective
Plate 10 reflects to be projected in the horizontal direction；The condenser lens 6 is arranged on the top of mirror surface 21, and the photoelectric sensor 8 is set
Put in the top of condenser lens 6, and the optically focused focus of the condenser lens 6 is located on photoelectric sensor 8.
Although it is steady that the accuracy and measurement scanning system that can improve measurement using the laser scanning and ranging instrument work
It is qualitative；The quick measurement to dynamic object can be realized simultaneously, next simplifies structure, be easy to manufacture to install.But, it is above-mentioned to swash
Optical scanning rangefinder, due to the measurement for being emitted light source 3 by the reflector 11 in the loophole 22 of speculum 2
Laser 31 is reflected so that projected in the horizontal direction, is then received by speculum 2 and is reflected measured object reflected light 32 and arrives poly-
Focus lens 6, photoelectric sensor 8 is focused the light into by condenser lens 6；In order to ensure that the level for measuring laser 31 is projected, and
Reflective mirror 2 can receive measured object reflected light 32, therefore be must assure that in installation process between reflector 11 and reflective mirror 2
Angle so that reflector 11 is perpendicular to reflective mirror 2.But can have alignment error in installation process, so as to cause detection
During detection error, therefore installation accuracy require it is higher, install trouble, simultaneously because alignment error be easily caused it is larger
Detection error.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of simple in construction, integrated level height, are easily installed, improve detection
The laser scanning measurement instrument of precision.
The technical solution adopted for the present invention to solve the technical problems is：Laser scanning measurement instrument, including light source, reflection
Mirror, condenser lens, photoelectric sensor；
The light source is arranged on the top for the mirror surface that speculum has；Standard is provided between the light source and speculum
Straight microscope group；And causing light source vertically to send measurement laser, the measurement laser is radiated at speculum through collimation microscope group
On, projected in the horizontal direction by speculum reflection；
The condenser lens is arranged on the top for the mirror surface that speculum has；It is provided with and connects above the condenser lens
Speculum is received, there is angle α between mirror surface and level that the reception speculum has；
The photoelectric sensor is located at the side for the mirror surface for receiving speculum；And the light beam that speculum is received
By being reflexed to after condenser lens optically focused by reception speculum on photoelectric sensor.
Further, the first loophole is provided with the reception speculum, to be provided with second on the condenser lens saturating
Unthreaded hole, the centerline collineation that the center line and the second loophole that first loophole has have, the light source is located at first
The surface of loophole.
Further, the collimation microscope group includes the first collimation lens, the second standard being arranged between light source and speculum
Straight lens；First collimation lens, which is located at, to be received above speculum；Second collimation lens is arranged in the second loophole.
Further, angle α=45 ° between the mirror surface and horizontal plane for receiving speculum.
It is preferred that, the speculum is rectangle plane mirror.
Further, described laser scanning measurement instrument, in addition to pedestal；The mirror tilt is arranged on pedestal.
The beneficial effects of the invention are as follows：Laser scanning measurement instrument of the present invention, will be launched with connecing by structure design
Receive light wave to be integrated on a constitutional detail, and realize by same reflection mirror sending light wave and receiving the hair of light wave for process
Penetrate, ensure the accurate transmission of light path with this, finally arrive at photoelectric sensor；Meanwhile, light source is set by side on the mirror, together
When ensure that the measurement laser that is sent on vertically of light source level after speculum reflects is projected；Therefore, installing
During only need to adjust the angle between speculum and horizontal plane so that measurement laser that light source is sent on vertically passes through
Level is projected after speculum reflection, and the installation of other devices need to only be installed to relevant position；Therefore simple installation, just
In operation, alignment error is minimum, and the measurement error that alignment error is brought is reduced so as to effective；Improve measurement accuracy and
The stability of measurement.Secondly, if detected in the range of 360 °, speculum only need to be rotated, so as to avoid portion
The part measurement error that shuttle belt comes in rotation process, improves the accuracy of measurement and the stabilization of laser scanning measurement instrument work
Property.Finally, laser scanning measurement instrument all parts of the present invention are standarized component, are easy to processing and manufacturing, can be effective
Reduction manufacturing cost.
Brief description of the drawings
Fig. 1 is that the optically focused focus of the condenser lens for the laser scanning measurement instrument that condenser lens is arranged on speculum side is located at
Structure diagram when on speculum；
Fig. 2 is that the optically focused focus of the condenser lens for the laser scanning measurement instrument that condenser lens is arranged on speculum side does not exist
Structure diagram when on speculum；
Fig. 3 is the structure diagram for the laser scanning measurement instrument that condenser lens is arranged on above speculum；
Fig. 4 is the structure diagram for the laser scanning measurement instrument that light source is arranged on immediately below speculum；
Fig. 5 is the structure diagram of laser scanning measurement instrument in the embodiment of the present invention；
Indicated in figure：1- pedestals, 2- speculums, 21- mirror surfaces, 22- loopholes, 3- light sources, 31- measurement laser, 32-
Measured object reflected light, 33- receives speculum reflected light, the collimation lenses of 4- first, the collimation lenses of 5- second, 6- condenser lenses, 7-
Reception speculum, 8- photoelectric sensors, 9- measured objects, the speculums of 11- second, the condenser lenses of 52- second, the loopholes of 61- second,
The loopholes of 71- first.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 5, laser scanning measurement instrument of the present invention, including light source 3, speculum 2, condenser lens 6, photoelectricity
Sensor 8；The light source 3 is arranged on the top for the mirror surface that speculum 2 has；Set between the light source 3 and speculum 2
There is collimation microscope group；And causing light source 3 vertically to send measurement laser 31, the measurement laser 31 passes through collimation microscope group irradiation
On speculum 2, reflected and projected in the horizontal direction by speculum 2；
The condenser lens 6 is arranged on the top for the mirror surface that speculum 2 has；The top of condenser lens 6 is set
There is reception speculum 7, there is angle α between mirror surface and level that the reception speculum 7 has；
The photoelectric sensor 8 is located at the side for the mirror surface for receiving speculum 7；And cause what speculum 2 was received
Light beam after the optically focused of condenser lens 6 by reception speculum 7 by being reflexed on photoelectric sensor 8.
Specifically, the main function of collimation microscope group is so that measurement laser 31 that light source 3 launches by collimating after microscope group
It is converted into directional light.
As shown in figure 4, the top of condenser lens 6 is provided with reception speculum 7, it is anti-that the reception speculum 7 has
Penetrating has angle α between minute surface and level, α is acute angle；Therefore, it is possible to cause measured object reflected light 32 to be focused on by condenser lens 6
Change the path of measured object reflected light 32 by receiving speculum 7 afterwards, it is to avoid measured object reflected light 32 is reflected back light source 3；Avoid
The measurement laser 31 that measured object reflected light 32 is launched with light source 1 is interfered.
Specifically, in implementation process, because the light source 3 is arranged on the top for the mirror surface that speculum 2 has；Institute
State and collimation microscope group is provided between light source 3 and speculum 2；And cause light source 3 vertically to send measurement laser 31, it is described to survey
Laser 31 is measured through microscope group parallel radiation is collimated on speculum 2, is reflected and projected in the horizontal direction by speculum 2；Therefore, in order to
Ensure that measurement laser 31 is projected in the horizontal direction, speculum 2 must be obliquely installed.As shown in figure 5, because the light source 3 is set
Put the top for the mirror surface having in speculum 2；Therefore the position of an adjustment speculum 2 and light source 3 is closed in installation process
System, that is, cause the angle phase between the angle and mirror surface 21 and horizontal plane between light source 3 and the mirror surface 21 of speculum 2
With；So as to ensure that the measurement laser 31 that light source 3 is launched is projected in the horizontal direction.
During being measured using laser scanning measurement instrument of the present invention：First by laser scanning measurement instrument
Installed；During measurement, light source 3 is opened, light source 3 is launched measurement laser 31, had because the light source 3 is arranged on speculum 2
The top of some mirror surfaces；Collimation microscope group is provided between the light source 3 and speculum 2；Therefore the measurement that light source 3 is sent swashs
Light 31 forms directional light by collimating after microscope group, directional light by speculum 2 reflect after level project.When measurement laser 31 run into by
When surveying thing 9, reflected on the surface of measured object 9, be reflected back a branch of measured object reflected light 32, the measured object reflected light reflected
32 are radiated on the mirror surface of speculum 2, change the path of light by the reflection of mirror surface so that speculum 2 is reflected
Upward light, is then focused by condenser lens 6.Because the top of condenser lens 6 is provided with reception speculum 7,
There is angle α between mirror surface and level that the reception speculum 7 has；Therefore, upward anti-of measured object reflected light 32
Penetrate light and, by the another secondary reflection of reception speculum 7, changing the path of light after the focusing of condenser lens 6, formed and receive anti-
Penetrate mirror reflected light 33 to be radiated on photoelectric sensor 8, the record of photoelectric sensor 8 receives optical signal, converts optical signal into telecommunications
Number, the distance between measured object and datum mark are then finally given by processing system progress processing.
After being measured, because light source 3 is located at the top of speculum 2, speculum 2 is fixed with the angle in horizontal direction；
The measurement laser 31 that light source 3 is sent by speculum 2 reflect after project；Ensure speculum 2 during rotating mirror 2
It is constant with angle in horizontal direction, while so that light source 3 is located in rotating shaft when rotating mirror 2 rotates, so that nothing
How to be rotated by speculum 2, light source 3 can be remained stationary as, still enable to the measurement laser 31 that light source 3 is launched by anti-
Penetrate the injection of the reflection levels of mirror 2.Meanwhile, condenser lens 6 does not follow rotation also to realize the focusing to measured object reflected light 32；Due to
It is that the light that condenser lens 6 is focused on after measured object reflected light 32 is reflected to receive speculum 7, and light is reflexed into photoelectric transfer
On sensor 8；Therefore, keep closing with the position relationship of condenser lens 6 and with the position of photoelectric sensor 8 as long as receiving speculum 7
It is constant, you can ensure that measured object reflected light 32 can be absorbed by photoelectric sensor 8.
In summary, rotating mirror 2 make it that the measurement laser 31 sent is reflected from speculum 2 irradiates another direction,
Repeat above measuring process, you can realize the measurement for being located at measured object 9 in second direction.Therefore speculum 2 is rotated a circle i.e.
The measurable distance for obtaining the range measurement datum mark of measured object 9 in laser scanning measurement instrument certain limit.
Meanwhile, laser scanning measurement instrument of the present invention due to being measured using the time flight theory of laser, because
This measurement is quick.By above-mentioned measuring process measure dynamic object on a time point relative to laser scanning measurement instrument it
Between distance, then the distance between dynamic object and laser scanning measurement instrument are measured after separated in time again, by front and rear
Obtained distance difference and interval time is measured twice to measure dynamic object relative to laser scanning measurement instrument
Movement velocity, realize real-time measurement to dynamic object.
The real-time measurement to dynamic object can not be realized if measuring speed is too slow；When measurement obtains measured object 9 with swashing
During the distance between optical scanning measuring instrument, if now measuring speed is too slow, then measured object 9 will move to next position
Put.So as to cause obtained data to react the real-time condition of goer in time.Laser scanning measurement instrument of the present invention,
Because measuring speed is quick, the measurement to dynamic object can be realized, dynamic object movement velocity is measured while can reduce
Error.
In summary, laser scanning measurement instrument of the present invention, will launch integrated with reception light wave by structure design
On a constitutional detail, and sending light wave and receiving the transmitting of light wave for process is realized by same reflection mirror, protected with this
The accurate transmission of light path is demonstrate,proved, photoelectric sensor is finally arrived at；Meanwhile, by setting light source 3 in the top of speculum 2, ensure simultaneously
The measurement laser 31 that light source 3 is sent on vertically level after the reflection of speculum 2 is projected；Therefore in installation process
In only need to adjust the angle between speculum 2 and horizontal plane so that the measurement laser 31 that light source 3 is sent on vertically passes through
Level is projected after speculum 2 reflects, the installation of other devices, only need to be installed to relevant position；Therefore simple installation,
It is easy to operation, alignment error is smaller, the measurement error that alignment error is brought is reduced so as to effective；Improve measurement accuracy
With the stability of measurement.Secondly, if detected in the range of 360 °, speculum 2 only need to be rotated, so as to avoid
The part measurement error that shuttle belt comes in rotation process, it is steady that the accuracy and laser scanning measurement instrument that raising is measured work
It is qualitative.Finally, laser scanning measurement instrument all parts of the present invention are standarized component, are easy to processing and manufacturing, Neng Gouyou
The reduction manufacturing cost of effect.
Simplify structure in order to further, be easily installed, while ensure the stability of structure, it is further, described to receive
The first loophole 71 is provided with speculum 7, the second loophole 61, first loophole is provided with the condenser lens 6
The centerline collineation that 71 center lines having and the second loophole 61 have, the light source 3 be located at the first loophole 71 just on
Side.By the way that light source 3 is arranged on into the top of reception speculum 7, it is easy to safeguard light source 3；It is provided with speculum 7 is received
The second loophole 61 is provided with first loophole 71, the condenser lens 6, so that the measurement laser 31 that light source 3 is sent
Can be through reception speculum 7 and condenser lens 6, and cause measurement laser 31 will not be to receiving speculum 7 and focusing on
The measured object reflected light 32 that lens 6 are received causes interference.
In order to simplify structure, it is easily installed, further, the collimation microscope group includes being arranged on light source 3 and speculum 2
Between the first collimation lens 4, the second collimation lens 5；First collimation lens 4, which is located at, receives the top of speculum 7；Described
Two collimation lenses 5 are arranged in the second loophole 61.By by the second collimation lens 5 be arranged on the second loophole 61 so as to
Reduce the installing space of equipment.
In order to be easy to determine the position of photoelectric sensor 8 after fixed reception speculum 7 is installed so that speculum 7 reflects
Light be radiated on photoelectric sensor 8, it is preferred that it is described receive speculum 7 mirror surface and horizontal plane between angle α
=45 °.
The speculum 2 can use level crossing, all directions during in order to realize that speculum 2 receives measured object reflected light 32
On measured object reflected light 32 receive uniformly, while being easy to fabricate and being easy to ensure installation accuracy, it is preferred that described anti-
Mirror 2 is penetrated for rectangle plane mirror.
For the ease of the installation of laser scanning measurement instrument, further described laser scanning measurement instrument, in addition to pedestal
1；The speculum 2 is tiltedly mounted on pedestal 1.By by speculum 2 be arranged on pedestal 1 on, only needed in installation process by
Pedestal 1 is installed on relevant position, is adjusted without the angle again to speculum 2；So as to simplify installation, energy
Installation effectiveness is enough improved, while reducing alignment error.
Claims (6)
1. laser scanning measurement instrument, including light source (3), speculum (2), condenser lens (6), photoelectric sensor (8)；Its feature exists
In：
The light source (3) is arranged on the top for the mirror surface that speculum (2) has, between the light source (3) and speculum (2)
It is provided with collimation microscope group；And causing light source (3) vertically to send measurement laser (31), the measurement laser (31) passes through standard
Straight microscope group is radiated on speculum (2), is projected in the horizontal direction by speculum (2) reflection；
The condenser lens (6) is arranged on the top for the mirror surface that speculum (2) has；Set above the condenser lens (6)
Reception speculum (7) is equipped with, there is angle α between mirror surface and level that the reception speculum (7) has；The photoelectricity
Sensor (8) is located at the side for the mirror surface for receiving speculum (7)；And cause the light beam that speculum (2) is received passes through poly-
Reflexed to after focus lens (6) optically focused by reception speculum (7) on photoelectric sensor (8).
2. laser scanning measurement instrument as claimed in claim 1, it is characterised in that：The is provided with reception speculum (7)
The second loophole (61) is provided with one loophole (71), the condenser lens (6), during first loophole (71) has
The centerline collineation that heart line and the second loophole (61) have, the light source (3) is located at the surface of the first loophole (71).
3. laser scanning measurement instrument as claimed in claim 2, it is characterised in that：The collimation microscope group includes being arranged on light source
(3) the first collimation lens (4), the second collimation lens (5) between speculum (2)；First collimation lens (4), which is located at, to be connect
Receive above speculum (7)；Second collimation lens (5) is arranged in the second loophole (61).
4. laser scanning measurement instrument as claimed in claim 1, it is characterised in that：The mirror surface for receiving speculum (7)
Angle α=45 ° between horizontal plane.
5. laser scanning measurement instrument as claimed in claim 1, it is characterised in that：The speculum (2) is rectangle plane mirror.
6. laser scanning measurement instrument as claimed in claim 1, it is characterised in that：Also include pedestal (1)；The speculum (2)
It is tiltedly mounted on pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417474.XA CN107102312A (en) | 2017-06-06 | 2017-06-06 | Laser scanning measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710417474.XA CN107102312A (en) | 2017-06-06 | 2017-06-06 | Laser scanning measurement instrument |
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| Publication Number | Publication Date |
|---|---|
| CN107102312A true CN107102312A (en) | 2017-08-29 |
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ID=59660969
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710417474.XA Pending CN107102312A (en) | 2017-06-06 | 2017-06-06 | Laser scanning measurement instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561716A (en) * | 2017-08-30 | 2018-01-09 | 南京理工大学 | A kind of common aperture arrangement of annular compound lens miniaturization laser transmitting-receiving |
| CN107702657A (en) * | 2017-10-31 | 2018-02-16 | 北京汽车研究总院有限公司 | A kind of gap measuring device |
| CN110736995A (en) * | 2018-07-02 | 2020-01-31 | 现代摩比斯株式会社 | Light detection and ranging sensing device |
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