CN108151767A - A kind of calibration slewed laser beam grenade instrumentation and its calibration method - Google Patents
A kind of calibration slewed laser beam grenade instrumentation and its calibration method Download PDFInfo
- Publication number
- CN108151767A CN108151767A CN201810108777.8A CN201810108777A CN108151767A CN 108151767 A CN108151767 A CN 108151767A CN 201810108777 A CN201810108777 A CN 201810108777A CN 108151767 A CN108151767 A CN 108151767A
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- Prior art keywords
- laser beam
- calibration
- spot
- image plane
- central point
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
Abstract
The invention discloses a kind of calibration slewed laser beam grenade instrumentations, including fixed seat and laser beam projects device, one or more image planes are equipped with positioned at the projecting direction of the laser beam projects device, laser beam projects device is connected with driving mechanism, laser beam projects device is projected 0 °, 90 °, 180 ° and 270 ° of position, and the spot of four projections is included in image plane.It is calibrated using the present apparatus, the precision calibration link of laser beam spot spot can be removed from, it is easy to operate.By the profile for handling spot, it finds the central point of spot, then line will be connected between the central point of diagonal spot each other in four spots, the intersection point for finally determining two lines is the central point in image plane, line centered on line between each image plane central point, the center line are Calibration Base Line.The method calibrated using the device, whether the profile for being not limited to spot is regular, considerably increases the applicability of the device.
Description
Technical field
The present invention relates to laser projection device and its calibration method technical field, more particularly to a kind of calibration is swashed with rotation
Light-beam projecting device and its calibration method.
Background technology
Characteristic based on laser beam, laser beam projection equipment are widely used in manufacturing industry greatly apart from the multiple processing of parts
The telltale mark of position generates spot, and then added by the location determination Components of spot by laser beam projects in image plane
The center of work.
Presently, the straightness of the light beam of laser projection disclosure satisfy that practical measurement request, but hot spot has centainly
Diameter can not accomplish infinitesimal, and in addition hot spot is nor ideal circular light spot, the phenomenon that being obscured there is also spot edge.Cause
This is difficult accurately to find the position of different measurement distances on the same line.Alternatively, it is difficult to find accurately by once projecting
Central point or center line.
Invention content
First technical problem to be solved by this invention is to provide a kind of calibration slewed laser beam grenade instrumentation.
Used technical solution to solve above-mentioned technical problem：A kind of calibration slewed laser beam grenade instrumentation, including
Fixed seat and the laser beam projects device being rotatably connected in fixed seat, are equipped with along the projecting direction of the laser beam projects device
One or more image planes, the laser beam projects device are connected with driving mechanism, and the laser beam projects device is initial at 0 °
After the projection of position, rotated successively to 90 °, 180 ° and 270 ° of position and complete projection, include laser beam projects in the image plane
The spot that device projects successively on four different locations.
Further, the fixed seat include stent and shaft, the shaft level be set on stent above and with its turn
Dynamic connection, the laser beam projects device are fixed on the end of shaft.
Further, the gyration central axis rotation that the laser of the laser beam projects device can be around the shaft
Further, between the slewing area of the laser beam projects device is 0 ° to 270 °.
Advantageous effect：Laser beam projects device completes projection directly in 0 °, 90 °, 180 ° and 270 ° four symmetric positions,
The consistent spot of four corresponding profiles is formed in image plane, by handling the profile of spot, finds the central point of spot, then will
Line is connected between the central point of diagonal spot each other in four spots, finally determines the intersection point of two lines in image plane
Central point, line centered on the line between each image plane central point, which is Calibration Base Line.Meanwhile using the device
Center line calibration is carried out, whether the profile for being not limited to spot is regular, and only need to find four spots is formed in spot set
Heart point considerably increases the applicability of the device.
Second technical problem to be solved by this invention is to provide a kind of calibration method of slewed laser beam grenade instrumentation,
Whether the profile that this method is not limited to projection spotting out is regular.
Used technical solution to solve above-mentioned technical problem：A kind of calibration calibrated with slewed laser beam grenade instrumentation
Method includes the following steps：
A, laser beam projects device level is put and in location arrangements image plane to be calibrated；
B, start laser beam projects device, and first time projection is carried out in 0 ° of initial position；
C, drive laser beam grenade instrumentation rotates, and is sequentially completed projection 90 °, 180 ° and 270 ° of position respectively；
D, the spot of corresponding four positions in image plane is handled, finds the center of four consistent spots of profile respectively
Point；
E, draw in four spots that the line between the central point of diagonal spot, the intersection point for determining two lines are picture each other
Central point in plane, the line between each image plane central point are Calibration Base Line.
Advantageous effect：Since laser beam projects device is limited to 0 °, 90 °, 180 ° and 270 ° four symmetrical launching position point
It is projected, and the consistent spot of four profiles is formed in image plane, even if the light beam that laser beam projects device projects is endless
It is located at rotating shaft center entirely, can also the central point in image plane, multiple image planes be determined by the central point of four spots
On central point between line be Calibration Base Line.Using this method can quickly obtain at different distances in same
The position of point on heart line, it is efficient.Also, even if the profile of spot is irregular, it is applied equally to this method.
Description of the drawings
The present invention is described further with reference to the accompanying drawings and examples；
Fig. 1 is a kind of projection status diagram of calibration slewed laser beam grenade instrumentation of the embodiment of the present invention；
Fig. 2 is the central point of diagonal spot each other in four spots in the first image plane and in the second image plane in Fig. 1
Line schematic diagram.
Specific embodiment
Referring to figs. 1 to Fig. 2, a kind of calibration slewed laser beam grenade instrumentation of the embodiment of the present invention including fixed seat 2 and turns
The dynamic laser beam projects device 1 being connected in fixed seat 2 is equipped with one or more along the projecting direction of laser beam projects device 1
Image plane, laser beam projects device 1 are connected with driving mechanism, and laser beam projects device 1 revolves successively after 0 ° of initial position projects
It goes to 90 °, 180 ° and 270 ° of position and completes projection, laser beam projects device 1 is included in image plane on four different locations
The spot 5 projected successively.
It is calibrated using the present apparatus, laser beam spots precision calibration link can be removed from, saved the time, operation letter
Just.Laser beam projects device 1 completes projection directly in 0 °, 90 °, 180 ° and 270 ° four symmetric positions, is formed in image plane
The consistent spot 5 of four corresponding profiles by handling the profile of spot 5, finds the central point of spot 5, then by four spots 5
In connect into line between the central point of diagonal spot 5 each other, the intersection point for finally determining two lines is the central point in image plane,
Line centered on line between each image plane central point, the center line are Calibration Base Line.Meanwhile school is carried out using the device
Standard, whether the profile for being not limited to spot 5 is regular, only need to find the central point that four spots 5 form spot set, greatly
The applicability of the device is increased greatly.
Specifically, fixed seat 2 includes stent 21 and shaft 22, and stent 21 is placed on ground or workbench, makes
Height and the horizontal height to be calibrated for obtaining laser beam projects device 1 are basically identical, and shaft 22 is horizontal to be set on 21 top of stent
And be rotatablely connected with it, in the present embodiment, the rotation connection with stent 21 is realized at the both ends of shaft 22 by rolling bearing.Swash
1 fixed and arranged of light-beam projecting device follows shaft 22 to rotate together in the end of shaft 22.Simultaneously in laser beam projects device
1 projecting direction is equipped with the first image plane 3 and the second image plane 4.
Preferably, the central point of the laser 11 of laser beam projects device 1 is located at the gyration central axis 221 of shaft 22
On.Although carry out horizontal alignment using the device, do not need to carry out laser beam projects device 1 calibration of horizontal accuracy,
But when arranging laser beam projects device 1, still ensure the central point of the laser 11 of laser beam projects device 1 as far as possible
It in the gyration central axis 221 of shaft 22, avoids the spacing in image plane between spot 5 excessive, and then increases to measure and miss
Difference.
Preferably, between the slewing area of laser beam projects device 1 is 0 ° to 270 °.Laser beam projects device 1 is driving
Motivation structure is rotated by, and due to being connected with power cord and control line on laser 11, limits laser beam projects device 1
Slewing area be 0 ° to 270 ° so that power cord and control line are unlikely to wind rotary shaft.
A kind of calibration method calibrated with slewed laser beam grenade instrumentation, includes the following steps：
A, 1 level of laser beam projects device is put and in location arrangements image plane to be calibrated；
B, start laser beam projects device 1, and first time projection is carried out in 0 ° of initial position；
C, drive laser beam grenade instrumentation 1 rotates, and is sequentially completed projection 90 °, 180 ° and 270 ° of position respectively；
D, the spot 5 of corresponding four positions in image plane is handled, finds the center of four consistent spots of profile 5 respectively
Point；
E, draw in four spots 5 that the line between the central point of diagonal spot 5, the intersection point for determining two lines are each other
Central point in image plane, the line between each image plane central point are calibration center line.
It is projected since laser beam projects device 1 is limited to 0 °, 90 °, 180 ° and 270 ° four symmetrical launching position point,
And the consistent spot 5 of four profiles is formed in image plane, even if laser beam projects device 1 is not exclusively located at horizontality,
Can the central point in image plane be determined by the central point of four spots 5, the company between central point in multiple image planes
Line is determined as Calibration Base Line.Calibration Base Line can quickly be obtained using this method, it is efficient.Also, even if the profile of spot 5 is not advised
Then, it is applied equally to this method.Because the four launching position points selected in this method are symmetrical, the profile of spot 5 can
Think arbitrary shape, do not interfere determining for the central point in image plane.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, can also be before present inventive concept not be departed from the knowledge having in the technical field those of ordinary skill
Put that various changes can be made.
Claims (5)
1. a kind of calibration slewed laser beam grenade instrumentation, it is characterised in that：Including fixed seat and it is rotatably connected in fixed seat
Laser beam projects device, be equipped with one or more image planes, the laser along the projecting direction of the laser beam projects device
Beam grenade instrumentation is connected with driving mechanism, the laser beam projects device after 0 ° of initial position projects, rotate successively to 90 °,
Projection is completed in 180 ° and 270 ° of position, is thrown successively on four different locations including laser beam projects device in the image plane
The spot penetrated.
2. calibration slewed laser beam grenade instrumentation according to claim 1, it is characterised in that：The fixed seat includes branch
Frame and shaft, the shaft level are set on above stent and are rotatablely connected with it, and the laser beam projects device, which is fixed on, to be turned
The end of axis.
3. calibration slewed laser beam grenade instrumentation according to claim 2, it is characterised in that：The laser beam projects dress
The laser put can be around the shaft gyration central axis rotation.
4. calibration slewed laser beam grenade instrumentation according to claim 1, it is characterised in that：The laser beam projects dress
Between the slewing area put is 0 ° to 270 °.
5. a kind of calibration method for including claim 1-4 any one of them calibration slewed laser beam grenade instrumentation, special
Sign is, includes the following steps：
A, laser beam projects device level is put and in location arrangements image plane to be calibrated；
B, start laser beam projects device, and first time projection is carried out in 0 ° of initial position；
C, drive laser beam grenade instrumentation rotates, and is sequentially completed projection 90 °, 180 ° and 270 ° of position respectively；
D, the spot of corresponding four positions in image plane is handled, finds the central point of four consistent spots of profile respectively；
E, draw in four spots that the line between the central point of diagonal spot, the intersection point for determining two lines are image plane each other
On central point, the line between each image plane central point is Calibration Base Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108777.8A CN108151767A (en) | 2018-02-01 | 2018-02-01 | A kind of calibration slewed laser beam grenade instrumentation and its calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108777.8A CN108151767A (en) | 2018-02-01 | 2018-02-01 | A kind of calibration slewed laser beam grenade instrumentation and its calibration method |
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| CN108151767A true CN108151767A (en) | 2018-06-12 |
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| CN201810108777.8A Pending CN108151767A (en) | 2018-02-01 | 2018-02-01 | A kind of calibration slewed laser beam grenade instrumentation and its calibration method |
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| CN2341122Y (en) * | 1998-08-12 | 1999-09-29 | 潘保青 | Laser positioner |
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| US20060256323A1 (en) * | 2005-05-10 | 2006-11-16 | Kevin Marc Morrissey | Method and apparatus for optical correction of a laser beam |
| CN101298982A (en) * | 2008-07-02 | 2008-11-05 | 瑞安市瑞光光电仪器有限公司 | Method and instrument for calibrating rotary shaft coaxiality |
| CN104838233A (en) * | 2012-12-05 | 2015-08-12 | 莱卡地球系统公开股份有限公司 | Laser beam horizontal trueness testing device and corresponding method |
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| CN106291837A (en) * | 2016-03-11 | 2017-01-04 | 上海瑞柯恩激光技术有限公司 | Laser beam coupling detection debugging structure and detection adjustment method |
| US20170016743A1 (en) * | 2015-07-17 | 2017-01-19 | Leica Geosystems Ag | Calibration device and calibration method for a laser beam horizontal trueness testing device |
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| CN208059905U (en) * | 2018-02-01 | 2018-11-06 | 广东开放大学（广东理工职业学院） | A kind of calibration slewed laser beam grenade instrumentation |
-
2018
- 2018-02-01 CN CN201810108777.8A patent/CN108151767A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634370A (en) * | 1992-07-14 | 1994-02-08 | Taisei Corp | Vertical direction measuring device |
| CN2341122Y (en) * | 1998-08-12 | 1999-09-29 | 潘保青 | Laser positioner |
| CN2465179Y (en) * | 2001-02-27 | 2001-12-12 | 武汉大学 | Automatic error detector for laser instrument |
| US20060256323A1 (en) * | 2005-05-10 | 2006-11-16 | Kevin Marc Morrissey | Method and apparatus for optical correction of a laser beam |
| CN101298982A (en) * | 2008-07-02 | 2008-11-05 | 瑞安市瑞光光电仪器有限公司 | Method and instrument for calibrating rotary shaft coaxiality |
| CN104838233A (en) * | 2012-12-05 | 2015-08-12 | 莱卡地球系统公开股份有限公司 | Laser beam horizontal trueness testing device and corresponding method |
| US20170016743A1 (en) * | 2015-07-17 | 2017-01-19 | Leica Geosystems Ag | Calibration device and calibration method for a laser beam horizontal trueness testing device |
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| CN105258710A (en) * | 2015-09-12 | 2016-01-20 | 长春理工大学 | High-precision camera principal point calibration method |
| CN106291837A (en) * | 2016-03-11 | 2017-01-04 | 上海瑞柯恩激光技术有限公司 | Laser beam coupling detection debugging structure and detection adjustment method |
| CN106679575A (en) * | 2016-12-29 | 2017-05-17 | 重庆交通大学 | System and method for detecting overheight and overwidth of vehicle based on laser calibration |
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