CN106679592A - Angle calibration device and method - Google Patents
Angle calibration device and method Download PDFInfo
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- CN106679592A CN106679592A CN201611265405.3A CN201611265405A CN106679592A CN 106679592 A CN106679592 A CN 106679592A CN 201611265405 A CN201611265405 A CN 201611265405A CN 106679592 A CN106679592 A CN 106679592A
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- side plate
- angle
- laser
- laser beam
- transmitting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides an angle calibration device and method. The angle calibration device comprises a laser device, a diaphragm and a calibrator which are successively arranged in the laser light path direction, wherein a rectangular structure with a hollow cavity is enclosed by a first side plate, a second side plate, a third side plate and a fourth side plate of the calibrator; an opening of which the aperture is A is formed in the center of the first side plate; a convex mirror of which the aperture is greater than that of the opening is arranged on the inner side of the third side plate which is opposite to the first side plate; scales and corresponding light sensors are respectively arranged on the inner sides of the first side plate, the second side plate and the fourth side plate; dielectric layers are respectively arranged on corresponding light sensors on the inner sides of the first side plate, the second side plate and the fourth side plate; the refractive index n1 of each dielectric layer is greater than the refractive index n0 of air; when the light sensors sense laser beams, electric signals are transmitted to a controller; after the controller receives the electric signals, the deflection angle of the laser beams transmitted by the laser device at the moment is determined and is displayed in real time, the laser device can be calibrated for angle measurement of the beams transmitted by the laser device, and therefore, the accuracy of the transmitting angle of the laser device is improved.
Description
Technical field
The present invention relates to field of optical measurements, and in particular to a kind of angle calibration system device and calibration steps.
Background technology
Laser has the advantages that brightness height, good directionality, monochromaticity 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, process become more meticulous in disease treatment etc..
With social sciences and expanding economy, for the requirement also more and more higher of laser performance, if can be fine
That what is changed 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 instrument itself mostly
Part and its measure of precision, for the operation of laser direction is also limited to after laser instrument itself is adjusted change the angle of departure of light beam
Degree, is not specifically designed for the actual launch angle of light beam and is calibrated, and reacts on the calibration of laser instrument itself, therefore calibrates
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 instrument launches light beam
Spend measurement to calibrate laser instrument, device volume is reduced, so as to improve the angle of the accuracy of laser instrument launch angle
Calibrating installation and calibration steps.
The invention provides a kind of angle calibration system device, is included in laser instrument, the light set gradually on laser optical path direction
Door screen 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 instrument transmitting meets certain angular range so that at angle
Laser beam can be by diaphragm (even if there is laser beam certain deflection angle also can pass through) in the range of degree；
First, secondth, scale and the corresponding sensillum opticum are both provided with the inside of the 4th side plate, sensillum opticum senses sharp
The signal of telecommunication is sent during light light beam to send to controller；
Dielectric layer is set on the corresponding sensillum opticum of the inner side of the first, second, the 4th side plate, the refractive index of its dielectric layer
n1More than refractive index n of air0；
Controller receives the deflection angle of the laser beam that now laser instrument transmitting is determined after the signal of telecommunication and shows in real time
Wherein, laser instrument 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, dielectric layer is glassy layer.
Present invention also offers a kind of calibration steps of utilization angle calibration system device, in turn includes the following steps：
(1) laser instrument parallel laser light beam of the transmitting without angular deflection is controlled so that laser beam is shone after diaphragm
The center of convex mirror is incident upon, if sensillum opticum does not sense laser beam, into step (2)；
(2) cause the laser beam launched that there is first angle by the angular adjustment apparatus of laser instrument so that laser light
Beam exposes to convex mirror after diaphragm；
(3) laser beam is launched, to the first side after first medium layer Jing after convex mirror transmitting with the first measurement angle
Plate, when the photoreceptorss on the first side plate sense the first sensed position of laser beam, sends and includes the first of first position
The signal of telecommunication is to controller, and the indicator of correspondence scale lights；
(4) laser beam is launched, through second after first medium layer Jing after the transmitting of the first side plate with the second measurement angle
The 4th after dielectric layer to second or the 4th side plate, second or the 4th the photoreceptorss on side plate sense laser beam second or
During three sensed positions, send include second or the 3rd position second or the 3rd the signal of telecommunication to controller, and correspondence carve
The indicator of degree lights；
(5) by the corresponding deflection angle in first position and second or the 3rd the corresponding deflection angle in position be compared, if partially
Corner is identical, then using this deflection angle as collimation angle, repeat step (1)-(4) if difference；
(6) 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；
(7) cause the laser beam launched that there is second angle, repeat step by the angular adjustment apparatus of laser instrument
(2) angular adjustment apparatus are calibrated by-(5) 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.
The present invention angle calibration system device and calibration steps, it is possible to achieve for laser instrument launch light beam angular surveying come
Laser instrument is calibrated, so as to improve the accuracy of laser instrument launch angle, and visual indication goes out corresponding calibration
Corresponding angle, and laser instrument arrange deflection angle intuitively contrast, it is more convenient；Apparatus body is reduced by the setting of dielectric layer
Product, has saved space.
Description of the drawings
Fig. 1 is angle calibration system apparatus structure schematic diagram
Fig. 2 is angle calibration system principle of device schematic diagram
Specific embodiment
The following detailed description of being embodied as the present invention, it is necessary to it is pointed out here that, below implement to be only intended to this
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 and its method, as shown in figure 1, laser angle calibration cartridge
Put and be included in the laser instrument 1, diaphragm and prover 2 set gradually on laser optical path direction, the wherein structure of prover 2 such as Fig. 1
Shown, first, second, third and fourth side plate of prover surrounds the rectangular configuration with middle cavity, wherein first and third side plate it is relative and
It is 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；The
Side plate center has opening of the aperture for A, and aperture is provided with the inside of the 3rd side plate being oppositely arranged more than opening
The convex mirror 3 in aperture, the laser beam of laser instrument transmitting, by opening, is then irradiated on convex mirror 3, convex mirror Jing after diaphragm
3 light beam is reflected after be irradiated on the first side plate, be irradiated in second or the 4th again Jing after the reflection of the first side plate on side plate；Diaphragm has
Have aperture B, its arrange can by wiping out background veiling glare while, it is ensured that laser instrument transmitting laser beam can by (even if swash
Light light beam has certain deflection angle), and the deflection angle of the laser beam of laser instrument transmitting meets certain angular range,
If laser beam after diaphragm is without deflection angle, and direct irradiation is to the center of convex mirror 3, then laser light
Beam is returned according to original route, during calibration, is adjusted by the transmitting beam angle correcting unit of laser instrument itself sharp
The Laser emission angle of light device, so as to change the launch angle of the laser beam of laser instrument, laser beam is irradiated after diaphragm
To on convex mirror 3, will change be irradiated to after beam path on the first side plate after reflection.
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 hollow side plate of intracavity convex mirror 3 to the first 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, using the structure and light path angle and length relation after calibration the light of laser instrument is can be obtained by
The deflection angle of beam, so as to by the value of calculation of deflection angle, carry out the angular adjustment apparatus of correcting laser itself, so as to realize laser
The calibration of device.
As shown in figure 1, in concrete implementation, scale and correspondence light are both provided with the inside of the first, second, the 4th side plate
Sensor, sensillum opticum sends the signal of telecommunication and sends to controller (not shown) when sensing laser beam, controller receives telecommunications
The deflection angle of the laser beam of now laser instrument transmitting is determined after number and show in real time, in addition the first, second, the 4th side plate
Outside is provided with indicator corresponding with scale label, right while induction apparatuss sense laser beam during calibration
Answer scale label indicator light, such that it is able to intuitively read corresponding deflection angle, so as to laser instrument adjusting apparatus
Adjusting parameter be compared, realize the calibration of laser instrument by calibrating adjusting apparatus.
Additionally, the setting of convex mirror causes angle of incidence to have bigger angle outgoing after reflection, so in the first side plate
Reception when, it is necessary to the first side plate long enough, but cross and grow side plate length and can increase volume, and the effect for measuring can be reduced
Rate, therefore dielectric layer is set on the corresponding sensillum opticum of the inner side of the first, second, the 4th side plate, according to Snell principles：n0sin
θ0=n1sinθ1, wherein n0And n1The respectively refractive index of air and dielectric layer, θ0And θ1Respectively angle of incidence and the angle of emergence, that
If refractive index n of dielectric layer1More than n0, then the angle of the angle of emergence can diminish, if corresponding in same ranges of incidence angles
Interior, the setting length of corresponding sensillum opticum can reduce, then the length of corresponding side plate can just arrange reduction.Therefore, it is situated between
Refractive index n of matter layer1More than refractive index n of air0, such set-up mode reduces the setting length of side plate, such that it is able to subtract
The volume of little prover 2, reduces the volume of whole calibrating installation.
Present invention also offers a kind of angle calibration system method, in turn includes the following steps：
(1) laser instrument parallel laser light beam of the transmitting without angular deflection is controlled so that laser beam is shone after diaphragm
The center of convex mirror is incident upon, if sensillum opticum does not sense laser beam, into step (2)；
(2) cause the laser beam launched that there is first angle by the angular adjustment apparatus of laser instrument so that laser light
Beam exposes to convex mirror after diaphragm；
(3) laser beam is launched, to the first side after first medium layer Jing after convex mirror transmitting with the first measurement angle
Plate, when the photoreceptorss on the first side plate sense the first sensed position of laser beam, sends and includes the first of first position
The signal of telecommunication is to controller, and the indicator of correspondence scale lights；
(4) laser beam is launched, through second after first medium layer Jing after the transmitting of the first side plate with the second measurement angle
The 4th after dielectric layer to second or the 4th side plate, second or the 4th the photoreceptorss on side plate sense laser beam second or
During three sensed positions, send include second or the 3rd position second or the 3rd the signal of telecommunication to controller, and correspondence carve
The indicator of degree lights；
(5) by the corresponding deflection angle in first position and second or the 3rd the corresponding deflection angle in position be compared, if partially
Corner is identical, then using this deflection angle as collimation angle, repeat step (1)-(4) if difference；
(6) 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；
(7) cause the laser beam launched that there is second angle, repeat step by the angular adjustment apparatus of laser instrument
(2) angular adjustment apparatus are calibrated by-(5) 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 the design parameter and architectural feature in the present invention can by directly or indirectly arranging,
The mode of measurement is obtained, and the present invention is completed under rational expection, and parameter, formula, the scheme of any discomfort all should be excluded.
Although for illustrative purposes, it has been described that the illustrative embodiments of the present invention, those skilled in the art
Member will be understood that, in the case of the scope and spirit without departing from the invention disclosed in 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 claims of the present invention
Protection domain, and each department of claimed product and each step in method, can be in any combination
Form is combined.Pair therefore, disclosed in this invention the description of embodiment 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 angle calibration system device, it is characterised in that：Be included in set gradually on laser optical path direction laser instrument, 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 instrument transmitting meets certain angular range so that in angle model
Enclosing interior laser beam can be by diaphragm (even if there is laser beam certain deflection angle also can pass through)；
First, secondth, scale and the corresponding sensillum opticum are both provided with the inside of the 4th side plate, sensillum opticum senses laser light
Send the signal of telecommunication during beam to send to controller；
Dielectric layer is set on the corresponding sensillum opticum of the inner side of the first, second, the 4th side plate, refractive index n of its dielectric layer1Greatly
In refractive index n of air0；
Controller receives the deflection angle of the laser beam that now laser instrument transmitting is determined after the signal of telecommunication and shows in real time.
2. device as claimed in claim 1, it is characterised in that：Laser instrument 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：The dielectric layer is glassy layer.
5. a kind of calibration steps of the angle calibration system device using as described in above-mentioned any one of claim 1-4, it is characterised in that
In turn include the following steps：
(1) laser instrument parallel laser light beam of the transmitting without angular deflection is controlled so that laser beam is exposed to after diaphragm
The center of convex mirror, if sensillum opticum does not sense laser beam, into step (2)；
(2) cause the laser beam launched that there is first angle by the angular adjustment apparatus of laser instrument so that laser beam leads to
Cross after diaphragm and expose to convex mirror；
(3) laser beam is launched Jing after convex mirror transmitting with the first measurement angle, to the first side plate after first medium layer, the
When photoreceptorss on side plate sense the first sensed position of laser beam, first signal of telecommunication for including first position is sent
To controller, and the indicator of correspondence scale lights；
(4) laser beam is Jing after the transmitting of the first side plate, with the transmitting of the second measurement angle after first medium layer, through second or the
To second or the 4th side plate after four dielectric layers, second or the 4th the photoreceptorss on side plate sense the second or the 3rd of laser beam
During sensed position, send include second or the 3rd position second or the 3rd the signal of telecommunication to controller, and correspondence scale
Indicator lights；
(5) by the corresponding deflection angle in first position and second or the 3rd the corresponding deflection angle in position be compared, if deflection angle
It is identical, then using this deflection angle as collimation angle, repeat step (1)-(4) if difference；
(6) angular adjustment apparatus are calibrated using collimation angle so that the adjusting parameter of the angular adjustment apparatus after adjustment with
First angle correspondence；
(7) cause the laser beam launched that there is second angle by the angular adjustment apparatus of laser instrument, repeat step (2)-
(5), angular adjustment apparatus are calibrated using second angle corresponding collimation angle so that the 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 |
|---|---|---|---|
| CN201611265405.3A CN106679592B (en) | 2016-12-30 | 2016-12-30 | A kind of angle calibration system device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611265405.3A CN106679592B (en) | 2016-12-30 | 2016-12-30 | A kind of angle calibration system device and calibration method |
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| Publication Number | Publication Date |
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| CN106679592A true CN106679592A (en) | 2017-05-17 |
| CN106679592B CN106679592B (en) | 2019-11-01 |
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| CN201611265405.3A Expired - Fee Related CN106679592B (en) | 2016-12-30 | 2016-12-30 | A kind of angle calibration system device and calibration method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143906A (en) * | 2018-10-19 | 2019-01-04 | 中国航空制造技术研究院 | A kind of intelligence diaphragm and laser calibration method |
| CN110770535A (en) * | 2017-06-19 | 2020-02-07 | 科巴有限公司 | Device and method for determining an angle between two workpiece surfaces |
| CN113984607A (en) * | 2021-10-15 | 2022-01-28 | 上海北分科技股份有限公司 | Light path calibration method, device and system based on transmission method dust meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770535A (en) * | 2017-06-19 | 2020-02-07 | 科巴有限公司 | Device and method for determining an angle between two workpiece surfaces |
| CN110770535B (en) * | 2017-06-19 | 2021-08-27 | 科巴有限公司 | Device and method for determining an angle between two workpiece surfaces |
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| CN113984607A (en) * | 2021-10-15 | 2022-01-28 | 上海北分科技股份有限公司 | Light path calibration method, device and system based on transmission method dust meter |
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| Publication number | Publication date |
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| CN106679592B (en) | 2019-11-01 |
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