CN106840603A - A kind of laser angle calibrating installation and calibration method based on path time - Google Patents
A kind of laser angle calibrating installation and calibration method based on path time Download PDFInfo
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- CN106840603A CN106840603A CN201611260402.0A CN201611260402A CN106840603A CN 106840603 A CN106840603 A CN 106840603A CN 201611260402 A CN201611260402 A CN 201611260402A CN 106840603 A CN106840603 A CN 106840603A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
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- Radar, Positioning & Navigation (AREA)
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- Length Measuring Devices By Optical Means (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A kind of laser angle calibrating installation and calibration method based on arrival time,It is included in the laser set gradually on laser optical path direction,Diaphragm and prover,The first of prover,Two,Three,Four side plates surround the rectangular configuration with middle cavity,First side plate center has the opening that aperture is A,Convex mirror of the aperture more than hatch bore diameter is provided with the inside of the 3rd side plate being oppositely arranged,First,Second,Scale and the corresponding timing inductor are both provided with the inside of 4th side plate,Timing inductor has timing unit and start unit,Temporal information is sent to controller when laser beam is sensed,Temporal information is sent to controller when laser beam is sensed,The deflection angle of the laser beam of now laser transmitting is determined after controller time of receipt (T of R) information and is shown in real time,Laser can be calibrated for the angular surveying of laser transmitting light beam,So as to improve the accuracy of laser launch angle.
Description
Technical field
The present invention relates to field of optical measurements, and in particular to a kind of laser angle calibrating installation and school based on path time
Quasi- method.
Background technology
Laser has the advantages that brightness high, good directionality, monochromaticjty is good, coherence is good, thus is widely used in work
The every field such as industry, agricultural, accurate measurement and detection, communication and information processing, medical treatment, military affairs.People can be right using laser
Material is processed, treatment become more meticulous in disease treatment etc..
With social science and expanding economy, for the requirement also more and more higher of laser performance, if can be fine
That changes operates to laser, then more targetedly target can be operated in actual applications.At present, laser
Direction can be adjusted by changing the angle of the direction of the launch, but this adjustment mode depends on the hard of laser itself mostly
Part and its measure of precision, are also limited to after laser itself is adjusted change the angle of departure of light beam for the operation of laser direction
Degree, is not calibrated specifically designed for the actual launch angle of light beam, and reacts on the calibration of laser itself, therefore calibration
Precision is low.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of to be directed to the angle that laser launches light beam
Degree measures to calibrate laser, so as to improve the laser angular based on path time of the accuracy of laser launch angle
Degree calibrating installation and calibration method.
The invention provides a kind of laser angle calibrating installation based on path time, be included on laser optical path direction according to
The laser of secondary setting, diaphragm and prover：
First, second, third and fourth side plate of prover surrounds the rectangular configuration with middle cavity, wherein first and third side plate is relative
And be arranged on the direction vertical with laser optical path, second, four side plates are relative and are arranged on the direction parallel with laser optical path；
First side plate center has the opening that aperture is A, and aperture is provided with the inside of the 3rd side plate being oppositely arranged more than opening
The convex mirror in aperture, the subsequent corrosion of convex mirror is definite value；
The deflection angle that diaphragm has aperture B, the laser beam of laser transmitting meets certain angular range so that at angle
Laser beam can be by diaphragm (even if laser beam have certain deflection angle can also pass through) in the range of degree；
First, secondth, scale and the corresponding timing inductor, timing inductor are both provided with the inside of the 4th side plate
With timing unit and start unit, temporal information is sent to controller when laser beam is sensed；
The deflection angle of the laser beam of now laser transmitting is determined after controller time of receipt (T of R) information and is shown in real time.
Wherein, laser is gas, liquid, solid or semiconductor laser.
Wherein, it is provided with indicator corresponding with scale label on the outside of the first, second, the 4th side plate.
Wherein, convex mirror to the light of the first side plate is determined using the mode of arrival time after controller time of receipt (T of R) information
Beam path time and the first side plate to second or the 4th side plate path time.
Present invention also offers a kind of calibration method using the laser angle calibrating installation based on path time, wrap successively
Include following steps：
(1) parallel laser light beam of the control laser transmitting without angular deflection so that laser beam after diaphragm by shining
The center of convex mirror is incident upon, if priming inductor does not sense laser beam at convex mirror, startup order is not sent, entered
Step (2)；
(2) laser beam for causing transmitting by the angular adjustment apparatus of laser has first angle so that laser light
Beam is by exposing to convex mirror after diaphragm；
(3) priming inductor at convex mirror senses laser beam, sends and starts order to the meter at the first side plate
When inductor start timing, while laser beam through convex mirror launch after, launched to the first side plate with the first measurement angle
When the first timing inductor on (4) first side plates senses the first sensed position of laser beam, send now
Between to controller, while send start order to second or the 3rd at side plate second or the 3rd timing inductor start timing,
And the indicator of correspondence scale lights；
(5) after laser beam is launched through the first side plate, launched to second or the 4th side plate, second or four with the second measurement angle
On side plate second or the 4th timing inductor when sensing second or three sensed positions of laser beam, send this time extremely
Controller, and the indicator of correspondence scale is luminous；
(6) controller determines convex mirror to the beam path time of the first side plate and first using the mode of arrival time
Side plate to second or the 4th side plate path time, by first path time corresponding deflection angle with second or the 3rd path it is corresponding
Deflection angle be compared, if deflection angle is identical, using this deflection angle as collimation angle, if difference repeat step (2)-
(5)；
(7) angular adjustment apparatus are calibrated using collimation angle so that the adjustment ginseng of the angular adjustment apparatus after adjustment
Number is corresponding with first angle；
(8) laser beam for causing transmitting by the angular adjustment apparatus of laser has second angle, repeat step
(2) angular adjustment apparatus are calibrated by-(6) using the corresponding collimation angle of second angle so that the angle adjustment dress after adjustment
The adjusting parameter put is corresponding with second angle, and calibration is finished.
Laser angle calibrating installation and calibration method based on path time of the invention, it is possible to achieve for laser hair
The angular surveying of irradiating light beam is calibrated to laser, so that improve the accuracy of laser launch angle, and intuitively
The corresponding angle of corresponding calibration is indicated, and the deflection angle that laser is set intuitively is contrasted, it is more convenient.
Brief description of the drawings
Fig. 1 is the laser angle calibrating installation structural representation based on path time
Specific embodiment
The following detailed description of specific implementation of the invention, it is necessary to it is pointed out here that, below implement to be only intended to this hair
Bright further illustrates, it is impossible to be interpreted as limiting the scope of the invention, and art skilled person is according to above-mentioned
Some nonessential modifications and adaptations that the content of the invention is made to the present invention, still fall within protection scope of the present invention.
The invention provides a kind of laser angle calibrating installation based on path time and its method, as shown in figure 1, being based on
The laser angle calibrating installation of path time is included in the laser 1, diaphragm and prover set gradually on laser optical path direction
2, the wherein structure of prover 2 are as shown in figure 1, first, second, third and fourth side plate of prover surrounds the rectangle knot with middle cavity
Structure, wherein first and third side plate is relative and is arranged on the direction vertical with laser optical path, second, four side plates are relative and are arranged at
On the direction parallel with laser optical path；It is the opening of A, the 3rd side plate being oppositely arranged that first side plate center has an aperture
Inner side be provided with convex mirror 3 of the aperture more than hatch bore diameter, the laser beam of laser transmitting after diaphragm by opening, so
After be irradiated on convex mirror 3, convex mirror 3 is irradiated on the first side plate after light beam is reflected, through the first side plate reflect after irradiate again
In second or the 4th on side plate；Diaphragm has aperture B, its setting can by wiping out background veiling glare while, it is ensured that laser send out
The laser beam penetrated can be by (even if laser beam has certain deflection angle), and the laser beam of laser transmitting
Deflection angle meets certain angular range, if by the laser beam after diaphragm without deflection angle, and direct irradiation is extremely
The center of convex mirror 3, then laser beam according to original route return, during calibration, by the hair of laser itself
Irradiating light beam angle correct device adjusts the Laser emission angle of laser, so as to change the angle of departure of the laser beam of laser
Degree, laser beam is irradiated to the first side plate after will changing beam path by being irradiated to after diaphragm on convex mirror 3, after reflection
On.
The structure of prover 2 is fixed design, and the subsequent corrosion of convex mirror 3 is also the definite value after design, therefore with one
Determine angular illumination to convex mirror 3 laser beam can with fixed angle reflection, because the structure of prover 2 is fixed,
The 3 to the first side plate of middle cavity convex face mirror and the first side plate to second or the 4th the path of side plate be also fixed, the length in path
Degree is also fixed, and the pip of the first side plate and second or the 4th side plate is also fixed, therefore by optical design,
Prover is calibrated in advance, the light of laser is can be obtained by using the structure and light path angle and length relation after calibration
The deflection angle of beam, so as to by the value of deflection angle, carry out the angular adjustment apparatus of correcting laser itself, so as to realize laser
Calibration.
As shown in figure 1, in concrete implementation, it is common practice to the photosensitive sites of light beam are directly sensed, so as to pass through
The corresponding relation of the photosensitive sites and deflection angle demarcated has been carried out, the deflection angle of correction is directly obtained, but this side
Formula there is also the shortcoming of its own, for example when beam and focus than it is larger when, there is difficulty for the accurate location of photosensitive sites, because
This mode of present invention based on arrival time, the path arrival times of direct measurement light beam, so as to be accurately obtained path distance,
It is compared by the path distance of fixed demarcation distance and actual measurement, so as to obtain the deflection angle of corresponding correction.
Therefore, scale and corresponding timing inductor, timing sensing are both provided with the inside of the first, second, the 4th side plate
Utensil has timing unit and start unit, and the position of convex mirror is provided with priming inductor, for being irradiated to convex surface when light beam
During the minute surface of mirror, start the timing inductor at the first side plate, the timing inductor at the first side plate senses that light beam irradiates
During to the first lateral plates, the timing inductor at the side plate of startup second or the 4th；When the timing sense of the first, second, the 4th side plate
This time is sent to controller (not shown) when answering device to sense laser beam, is utilized after controller time of receipt (T of R) information
The mode of arrival time determines convex mirror to the beam path time of the first side plate and the first side plate to second or the 4th side plate
Path time, so as to obtain the deflection angle of corresponding calibration by different path times, controller end is also by deflection angle
Degree display in real time, is provided with indicator corresponding with scale label, in calibration on the outside of the first, second, the 4th side plate in addition
During, while timing inductor senses laser beam, the indicator of correspondence scale label lights, such that it is able to intuitively
Read corresponding deflection angle, so as to be compared with the adjusting parameter of laser adjusting apparatus, by calibrate adjusting apparatus come
Realize the calibration of laser.
The invention provides a kind of calibration method using the laser angle calibrating installation based on path time, include successively
Following steps：
(1) parallel laser light beam of the control laser transmitting without angular deflection so that laser beam after diaphragm by shining
The center of convex mirror is incident upon, if priming inductor does not sense laser beam at convex mirror, startup order is not sent, entered
Step (2)；
(2) laser beam for causing transmitting by the angular adjustment apparatus of laser has first angle so that laser light
Beam is by exposing to convex mirror after diaphragm；
(3) priming inductor at convex mirror senses laser beam, sends and starts order to the meter at the first side plate
When inductor start timing, while laser beam through convex mirror launch after, launched to the first side plate with the first measurement angle
When the first timing inductor on (4) first side plates senses the first sensed position of laser beam, send now
Between to controller, while send start order to second or the 3rd at side plate second or the 3rd timing inductor start timing,
And the indicator of correspondence scale lights；
(5) after laser beam is launched through the first side plate, launched to second or the 4th side plate, second or four with the second measurement angle
On side plate second or the 4th timing inductor when sensing second or three sensed positions of laser beam, send this time extremely
Controller, and the indicator of correspondence scale is luminous；
(6) controller determines convex mirror to the beam path time of the first side plate and first using the mode of arrival time
Side plate to second or the 4th side plate path time, by first path time corresponding deflection angle with second or the 3rd path it is corresponding
Deflection angle be compared, if deflection angle is identical, using this deflection angle as collimation angle, if difference repeat step (2)-
(5)；
(7) angular adjustment apparatus are calibrated using collimation angle so that the adjustment ginseng of the angular adjustment apparatus after adjustment
Number is corresponding with first angle；
(8) laser beam for causing transmitting by the angular adjustment apparatus of laser has second angle, repeat step
(2) angular adjustment apparatus are calibrated by-(6) using the corresponding collimation angle of second angle so that the angle adjustment dress after adjustment
The adjusting parameter put is corresponding with second angle, and calibration is finished.
In addition it should be noted that design parameter and architectural feature in the present invention can by directly or indirectly setting,
The mode of measurement is obtained, and the present invention is completed under rational expection, and parameter, formula, the scheme of any discomfort should all be excluded.
Although for illustrative purposes, it has been described that illustrative embodiments of the invention, those skilled in the art
Member it will be understood that, in the case of not departing from the scope and spirit of invention disclosed in appended claims, can be in form and details
On carry out various modifications, addition and replace etc. change, and it is all these change should all belong to appended claims of the present invention
Each step in protection domain, and claimed each department of product and method, can be in any combination
Form is combined.Therefore, to disclosed in this invention implementation method description be not intended to limit the scope of the present invention,
But for describing the present invention.Correspondingly, the scope of the present invention is not limited by embodiment of above, but by claim or
Its equivalent is defined.
Claims (5)
1. a kind of laser angle calibrating installation based on path time, it is characterised in that：Be included on laser optical path direction according to
The laser of secondary setting, diaphragm and prover：
First, second, third and fourth side plate of prover surrounds the rectangular configuration with middle cavity, wherein first and third side plate is relative and sets
It is placed on the direction vertical with laser optical path, second, four side plates are relative and are arranged on the direction parallel with laser optical path；First
Side plate center has the opening that aperture is A, and aperture is provided with the inside of the 3rd side plate being oppositely arranged more than hatch bore diameter
Convex mirror, the subsequent corrosion of convex mirror is definite value；
The deflection angle that diaphragm has aperture B, the laser beam of laser transmitting meets certain angular range so that in angle model
Enclosing interior laser beam can be by diaphragm (even if laser beam have certain deflection angle can also pass through)；
First, secondth, scale and the corresponding timing inductor are both provided with the inside of the 4th side plate, timing inductor has
Timing unit and start unit, send to controller temporal information when laser beam is sensed；
The deflection angle of the laser beam of now laser transmitting is determined after controller time of receipt (T of R) information and is shown in real time.
2. device as claimed in claim 1, it is characterised in that：Laser is gas, liquid, solid or semiconductor laser.
3. device as claimed in claim 1 or 2, it is characterised in that：First, secondth, it is provided with and mark on the outside of the 4th side plate
The corresponding indicator of chi scale.
4. the device as described in claim 1 or 2 or 3, it is characterised in that：Arrival time is utilized after controller time of receipt (T of R) information
Mode determine convex mirror to the first side plate the beam path time and the first side plate to second or the 4th side plate path when
Between.
5. a kind of calibration method of laser angle calibrating installation using as described in above-mentioned any one of claim 1-4, its spy
Levy and be, in turn include the following steps：
(1) parallel laser light beam of the control laser transmitting without angular deflection so that laser beam after diaphragm by exposing to
The center of convex mirror, if priming inductor does not sense laser beam at convex mirror, startup order is not sent, into step
(2)；
(2) laser beam for causing transmitting by the angular adjustment apparatus of laser has first angle so that laser beam leads to
Convex mirror is exposed to after crossing diaphragm；
(3) priming inductor at convex mirror senses laser beam, sends and starts order to the timing sense at the first side plate
Device is answered to start timing, while after laser beam is launched through convex mirror, launching to the first side plate with the first measurement angle；
When the first timing inductor on (4) first side plates senses the first sensed position of laser beam, this time is sent extremely
Controller, at the same send start order to second the 3rd at side plate second or the 3rd timing inductor start timing, and
The indicator of correspondence scale lights；
(5) after laser beam is launched through the first side plate, launched to second or the 4th side plate, second or four side plates with the second measurement angle
On second or the 4th timing inductor when sensing second or three sensed positions of laser beam, send this time to controlling
Device, and the indicator of correspondence scale is luminous；
(6) controller determines beam path time and first side plate of the convex mirror to the first side plate using the mode of arrival time
To second or the 4th side plate path time, by first path time corresponding deflection angle and second or the 3rd path it is corresponding partially
Corner is compared, if deflection angle is identical, using this deflection angle as collimation angle, and repeat step (2)-(5) if difference；
(7) angular adjustment apparatus are calibrated using collimation angle so that the adjusting parameter of the angular adjustment apparatus after adjustment with
First angle correspondence；
(8) laser beam for causing transmitting by the angular adjustment apparatus of laser has a second angle, and repeat step (2)-
(6) angular adjustment apparatus are calibrated using second angle corresponding collimation angle, so that angular adjustment apparatus after adjustment
Adjusting parameter is corresponding with second angle, and calibration is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260402.0A CN106840603B (en) | 2016-12-30 | 2016-12-30 | A kind of laser angle calibrating installation and calibration method based on path time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260402.0A CN106840603B (en) | 2016-12-30 | 2016-12-30 | A kind of laser angle calibrating installation and calibration method based on path time |
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| Publication Number | Publication Date |
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| CN106840603A true CN106840603A (en) | 2017-06-13 |
| CN106840603B CN106840603B (en) | 2019-06-21 |
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| CN201611260402.0A Active CN106840603B (en) | 2016-12-30 | 2016-12-30 | A kind of laser angle calibrating installation and calibration method based on path time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485968A (en) * | 2022-01-14 | 2022-05-13 | 深圳市微特精密科技股份有限公司 | Vision laser calibration platform system |
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2016
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| US4032158A (en) * | 1974-09-05 | 1977-06-28 | Strathearn Audio Limited | Method and apparatus for indicating angular displacement |
| CN2031082U (en) * | 1988-03-17 | 1989-01-18 | 曹敏夫 | Measurer for small displacement (length or angle) |
| CN201163308Y (en) * | 2008-01-25 | 2008-12-10 | 科瑞自动化技术(深圳)有限公司 | Image processing light path structure for laser adjustment and correcting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485968A (en) * | 2022-01-14 | 2022-05-13 | 深圳市微特精密科技股份有限公司 | Vision laser calibration platform system |
| CN114485968B (en) * | 2022-01-14 | 2023-08-22 | 深圳市微特精密科技股份有限公司 | Visual laser calibration platform system |
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| Publication number | Publication date |
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| CN106840603B (en) | 2019-06-21 |
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Effective date of registration: 20190527 Address after: 518000 No. 5 Shajing Street Center Road, Baoan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen DNE Laser Science and Technology Co.,Ltd. Address before: 266300 No. 2 Huiying Street, Jiaozhou Economic and Technological Development Zone, Qingdao City, Shandong Province Applicant before: QINGDAO R & D INSTITUTE, XIAN JIAOTONG University Applicant before: QINGDAO HANXING INTELLECTUAL PROPERTY OPERATION MANAGEMENT Co.,Ltd. |
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Address after: 518000 floors 1-5, No. 8179-1, Bao'an Avenue, Digang community, Shajing street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Baichao (Shenzhen) Laser Technology Co.,Ltd. Address before: 518000 No. 5 Shajing Street Center Road, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen DNE Laser Science and Technology Co.,Ltd. |
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