CN112719628B - Device and method for removing multi-color laser foreign matters based on transparency of foreign matters - Google Patents
Device and method for removing multi-color laser foreign matters based on transparency of foreign matters Download PDFInfo
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- CN112719628B CN112719628B CN202011505457.XA CN202011505457A CN112719628B CN 112719628 B CN112719628 B CN 112719628B CN 202011505457 A CN202011505457 A CN 202011505457A CN 112719628 B CN112719628 B CN 112719628B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a device and a method for removing foreign matters by using multi-color laser based on transparency of the foreign matters, wherein the device comprises a multi-color laser generating device, a multi-color laser synthesis beam shrinking device, a cradle head and a laser energy detector, the multi-color laser generating device comprises a plurality of laser generators with different wave bands, the multi-color laser synthesis beam shrinking device conducts and collimates and focuses lasers with different wave bands emitted by the multi-color laser generating device in a unidirectional manner to form multi-color laser beams, the multi-color laser beams are controlled by the cradle head to emit the multi-color laser beams to the foreign matters, the laser energy detector receives reflected laser reflected by the foreign matters in a near infrared wave band, the transparency of the foreign matters is determined by the energy of the reflected laser, and the multi-color laser synthesis beam shrinking device adjusts the laser composition and power of the multi-color laser beams according to the transparency of the foreign matters to cut the foreign matters. The device and the method can be used for adjusting the working condition and the power of the laser generator with each wavelength by judging the transparency of the foreign matters so as to achieve higher cleaning efficiency.
Description
Technical Field
The invention relates to the technical field of foreign matter removal on overhead transmission lines, in particular to a device and a method for removing multi-color laser foreign matters based on the transparency of the foreign matters.
Background
Overhead transmission lines are often subject to entanglement of floating foreign bodies such as plastic films and kite lines, or to obstructions such as trees due to the complexity of the working environment. These conditions often cause insulation problems in the line, which in turn can cause damages to the economy, safety, reliability of the grid.
Under the background, the laser remote cutting technology is increasingly widely applied to the power grid due to the safety and flexibility of the laser remote cutting technology, and the laser remote cutting technology gradually starts to replace the traditional manual obstacle removing means. The existing laser technology can emit a beam of monochromatic laser with near infrared wavelength or middle infrared wavelength, direct irradiates the foreign matter, the foreign matter is spontaneously burned or carbonized and fused through fully absorbing laser energy, and finally the foreign matter is cut through the control of a holder.
However, different types of foreign matters can be encountered in the practical use process of the laser foreign matter obstacle removing device, and the surface characteristics, especially the color characteristics, of different foreign matters are different, so that the laser foreign matter obstacle removing device has inconsistent absorption effects on laser energy with different wavelengths. In general, dark non-transparent foreign matters such as tree barriers can absorb short wavelength laser (mainly near infrared wavelength) generated by semiconductor and fiber lasers and long wavelength laser generated by CO2 lasers (mainly middle infrared wavelength) well, but short wavelength lasers are favored by focusing systems with higher photoelectric conversion efficiency and low cost; the light-colored transparent foreign matters such as plastic films and the like have higher transmission and reflection characteristics on short-wavelength laser, so that the waste of laser energy and the low cutting efficiency are caused, and long-wavelength laser is often needed to complete cutting. The conventional laser does not have the function of simultaneously outputting multi-wavelength multi-color laser, and is difficult to remove each foreign matter efficiently and with low consumption in actual use.
Disclosure of Invention
The invention provides a device and a method for removing foreign matters by using multi-color laser based on the transparency of the foreign matters.
According to one aspect of the invention, a device for removing foreign matters by using multi-color laser based on transparency of the foreign matters is provided, which comprises a multi-color laser generating device, a multi-color laser synthesis beam shrinking device, a cradle head and a laser energy detector, wherein the multi-color laser generating device comprises a plurality of laser generators with different wave bands, the multi-color laser synthesis beam shrinking device conducts laser with different wave bands emitted by the multi-color laser generating device in a unidirectional conduction and collimation and focusing mode to form multi-color laser beams, the multi-color laser beams are emitted to the foreign matters through control of the cradle head, the laser energy detector receives reflected laser reflected by the foreign matters in a near infrared wave band, the transparency of the foreign matters is determined through the energy of the reflected laser, the higher the energy of the reflected laser is, and the multi-color laser synthesis beam shrinking device cuts the foreign matters according to the laser composition and power of the laser beams of the transparency of the foreign matters.
Preferably, the laser energy detector further includes a mirror for changing a laser light path of the reflected laser light reflected from the foreign matter by the mirror so that the reflected laser light is incident into the laser energy detector.
Preferably, the device further comprises a cooling system for radiating the laser generator of the multi-color laser generating device.
Preferably, the wavelength bands include a near infrared band and a mid infrared band.
Preferably, the laser energy detector receives reflected laser light in a near infrared band, and converts an optical signal into a voltage value through the photoelectric tube and the amplifying circuit, wherein the higher the voltage value is relative to a voltage threshold value, the higher the foreign matter transparency is; the lower the voltage value relative to the voltage threshold value, the lower the foreign matter transparency.
Preferably, the laser energy detector further comprises an indicator lamp, and the transparency of the foreign matter is distinguished by the indicator lamps of different colors.
Preferably, the complex color laser synthesis beam shrinking device adopts the higher proportion of the laser of the middle infrared band relative to the laser of the near infrared band when the transparency is higher.
Further, it is preferable that the distance between the complex color laser synthesis beam shrinking device and the foreign matter is smaller as the transparency is higher.
According to another aspect of the present invention, there is provided a method for removing a foreign object by a multi-color laser based on transparency of the foreign object, comprising:
emitting laser of different wave bands through a laser generator;
carrying out unidirectional conduction and collimation focusing on lasers with different wave bands to form a multi-color laser beam;
directing a polychromatic laser beam towards the foreign body;
receiving reflected laser reflected by the foreign matters in the near infrared band, determining the transparency of the foreign matters by the energy of the reflected laser, wherein the higher the energy of the reflected laser is, the higher the transparency of the foreign matters is;
and adjusting the laser composition and the power of the multi-color laser beam according to the transparency of the foreign matters, and cutting the foreign matters.
According to the device and the method for removing the multi-color laser foreign matters based on the transparency of the foreign matters, the working condition and the power of the laser generator with each wavelength are adjusted by judging the transparency of the foreign matters, so that the foreign matters can efficiently absorb the laser energy suitable for the characteristic wave band, and the higher cleaning efficiency is achieved.
Drawings
FIG. 1 is a schematic diagram of a multiple color laser foreign matter removal device based on foreign matter transparency according to the present invention;
fig. 2 is a flowchart of a method for removing foreign matters by using a multi-color laser based on the transparency of the foreign matters according to the invention.
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.
Fig. 1 is a schematic diagram of a device for removing foreign matters by using multi-color laser based on transparency of foreign matters according to the present invention, as shown in fig. 1, the device for removing foreign matters by using multi-color laser includes a multi-color laser generating device 1, a multi-color laser synthesizing and beam shrinking device 2, a cradle head (not shown), and a laser energy detector 3, the multi-color laser generating device includes a plurality of laser generators with different wave bands, the multi-color laser synthesizing and beam shrinking device conducts and focuses the laser with different wave bands emitted by the multi-color laser generating device in a unidirectional manner to form a multi-color laser beam, the multi-color laser beam is directed to the foreign matters 10 through the cradle head, the laser energy detector receives the reflected laser reflected by the foreign matters with near infrared wave band, the transparency of the foreign matters is determined through the energy of the reflected laser beam, the higher the energy of the reflected laser beam is, the transparency of the foreign matters is higher, and the multi-color laser synthesizing and beam shrinking device adjusts the laser composition and power of the multi-color laser beam according to the transparency of the foreign matters to cut foreign matters.
Preferably, the complex color laser synthesis beam shrinking device adopts the higher proportion of the laser of the middle infrared band relative to the laser of the near infrared band when the transparency is higher.
Further, it is preferable that the distance between the complex color laser synthesis beam shrinking device and the foreign matter is smaller as the transparency is higher.
In the device for removing the foreign matters by the multi-color laser based on the transparency of the foreign matters, the multi-color laser generating device can simultaneously emit near infrared wavelength laser and middle infrared wavelength laser with certain power by adopting a laser array, and the near infrared wavelength laser and the middle infrared wavelength laser are mixed to form multi-color laser, and the multi-color laser is generated by focusing and collimating through an optical path. The laser energy detector receives and analyzes the light intensity of near infrared laser reflected by the surface of the foreign matter to obtain the transparency of the remote foreign matter, and adjusts the working condition (opening or closing) and the power of each wavelength laser in the multi-color laser generating device by judging the transparency of the foreign matter according to the multi-color condition of the laser band emitted by the laser generating device, so that the foreign matter efficiently absorbs the laser energy suitable for the characteristic wave band of the foreign matter, and the higher cleaning efficiency is achieved.
In an alternative embodiment, a mirror 4 is further included, by which the laser light path of the reflected laser light reflected back by the foreign object is changed, so that the reflected laser light is injected into the laser energy detector.
In an alternative embodiment, the device further comprises a cooling system for cooling the laser generator of the multi-color laser generating device.
In one embodiment, the device for synthesizing and shrinking the multiple-color laser adopts a two-dimensional symmetrical cone structure, the edge of the cone structure is provided with an overflow light absorbing coating, the incident laser is uniformly mixed after multiple reflections, and the material shape of the mixed multiple-color laser beam foreign matter is expanded or shrunk into a flattened parallel energy beam.
In one embodiment, the laser energy detector receives the reflected laser light in the near infrared band, and converts the optical signal into a voltage value through the photoelectric tube and the amplifying circuit, wherein the higher the voltage value is relative to the voltage threshold value, the higher the foreign matter transparency is; the lower the voltage value relative to the voltage threshold value, the lower the foreign matter transparency.
Preferably, the laser energy detector further comprises an indicator lamp, and the transparency of the foreign matter is distinguished by the indicator lamps of different colors.
In a preferred embodiment of the present invention, the device for removing foreign matters by using a multi-color laser based on the transparency of the foreign matters comprises a multi-color laser generating device 1, a multi-color laser synthesis beam shrinking device 2, a cooling system, a holder, a reflecting mirror 4 and an energy detector 3, wherein:
the multi-color laser generating device 1 is a plurality of band-shaped laser generators 11 with near infrared wave bands (mainly 760nm-1100 nm) and a middle infrared wave band (mainly 10um-12 um) laser generator 12, and is used for emitting a multi-color laser band with set power to the multi-color laser synthesis beam shrinking device 2, for example, the multi-color laser generating device 1 is a plurality of semiconductor and CO2 laser generators; the power of the near infrared laser generator reaches a single 100W, and the total power of the multi-color laser generator can reach 600W at most; the angle of the emitted light is 30 degrees in the fast axis direction and 10 degrees in the slow axis direction; the working switch of each laser generator is controlled manually to aim at foreign matters with different transparency, and an operator can adjust the occurrence condition and the power size of a multiple-color laser band according to engineering experience or transparency indication of a reflected laser energy detection device, so that the aims of high efficiency and low power consumption are fulfilled. For example, for cleaning dark materials with low transparency, such as tree barriers, only the near infrared band-shaped laser generator is often required to be turned on; for example, for cleaning light-colored substances with high transparency, such as plastic films, it is necessary to turn on the ribbon laser generators of both wavelength bands simultaneously.
The multi-color laser synthesis beam shrinking device 2 conducts unidirectional conduction and collimation focusing on the multi-color laser band to form a multi-color laser beam, and precisely irradiates the multi-color laser beam to foreign matters through the control of a cradle head; the complex-color laser synthesis beam shrinking device adopts a two-dimensional symmetrical conical structure, the hypotenuse angle of the waveguide is determined based on the divergence angle of laser, and the edge of the conical structure is provided with overflow light absorptionThe coating layer uniformly mixes the incident laser after multiple reflections, simultaneously expands or reduces the material shape of the mixed multi-color laser beam foreign matter into flattened parallel energy beams, and the laser power density can reach 500W/cm 2 The above.
The cooling system is a liquid cooling device for the semiconductor laser and is used for rapidly radiating heat in the working process.
The cradle head adjusts the motion path of the emitted multi-color laser beam through the electric two-dimensional driving control of the rotating shaft, and is used for forming a laser path.
The reflecting mirror 4 is used for changing the light path of the laser reflected by the target object, so that the reflected laser precisely irradiates into the laser energy detector.
The laser energy detector 3 comprises an indicator lamp 31, an energy probe 32, a data control processing system 33, a filtering, photoelectric tube and an amplifying circuit, wherein the energy probe is used for receiving reflected laser after being refracted by a reflecting mirror; the laser energy detector only receives the reflected laser of the near infrared band, converts the optical signal into a voltage value Vn through the photoelectric tube and the amplifying circuit, the data control processing system 33 performs threshold judgment on the voltage value, and controls the indicator lamp to emit different indicator lights, for example, a green light (the indicator light is green) indicates low transparency, a red light (the indicator light is red) indicates high transparency, if the voltage value Vn is higher than the voltage threshold value V0, the foreign matter transparency is higher, and the red light is lighted; if the voltage value Vn is lower than the voltage threshold V0, the foreign matter transparency is lower, and a green light is turned on; for example, dark foreign matter such as tree barriers has low transparency, reflectivity to near infrared laser and middle infrared laser is very low, the voltage value is measured to be lower than a voltage threshold V0, and a green light is lighted. For example, light foreign matters such as plastic films are high in transparency, reflectivity of near infrared laser is higher than that of dark materials, the voltage value is higher than a voltage threshold V0, and a red light is lighted; because the laser generator with the near infrared wavelength has higher photoelectric conversion efficiency and low focusing cost, when the green light is on, operators often only adopt the laser generator with the near infrared wavelength; the near infrared wavelength laser generator has better thermal effect on transparent substances, and when the red light is on, operators often adopt two kinds of wave band compound laser at the same time, and the distance between the device and the foreign matter is adjusted to reduce the scattering loss of the middle infrared wavelength.
Preferably, at the initial working time, only all near infrared lasers are turned on for preliminary cutting of the foreign matters, and the energy detector detects the near infrared laser reflected by the foreign matters; the working switch of each band-shaped laser generator (near infrared laser) is manually controlled to aim at foreign matters with different transparency, and an operator can adjust the occurrence condition and the power size of a multi-color laser band according to engineering experience or transparency indication of a reflection laser energy detection device, so that the aims of high efficiency and low power consumption are fulfilled.
According to the multi-color laser foreign matter removing device based on the transparency of the foreign matters, the working conditions and the power of each wavelength laser of the multi-color laser generating device are manually controlled, so that lasers with proper foreign matter characteristic wave bands can be used for different foreign matters in a targeted mode, and the absorptivity of the foreign matters to laser energy is improved; the transparency of the foreign matters is indicated by the reflected laser energy detection device, and especially when the transparency is difficult to be judged by the long-distance thin and narrow foreign matters, an operator can conveniently and directly adjust the working condition of the multi-color laser device according to the transparency judgment result.
Although the embodiment of manual control is given above, the invention is not limited to this, and the adjustment of the power and the wave band composition of the cutting laser can be realized by electric control, for example, by transmitting working or non-working signals to different laser generators, so that the laser light of different wave bands is emitted, and the distance between the multi-color laser synthesis beam shrinking device and the foreign matter can also be realized by electric control.
Fig. 2 is a schematic diagram of a method for removing foreign matters by using a multi-color laser based on transparency of the foreign matters, which is characterized by comprising the following steps:
step S1, emitting laser of different wave bands through a laser generator;
step S2, carrying out unidirectional conduction and collimation focusing on lasers with different wave bands to form a multi-color laser beam;
s3, shooting the multi-color laser beam to the foreign matter;
s4, receiving reflected laser reflected by the foreign matters in the near infrared band, determining the transparency of the foreign matters through the energy of the reflected laser, wherein the higher the energy of the reflected laser is, the higher the transparency of the foreign matters is;
and S5, adjusting the laser composition and the power of the multi-color laser beam according to the transparency of the foreign matter, and cutting the foreign matter.
In step S1, the wavelength bands include a near infrared band and a mid infrared band, that is, the laser generator includes a near infrared laser generator and a mid infrared laser generator, preferably, the near infrared band is in the range of 760nm to 1100nm, the mid infrared band is in the range of 10um to 12um, and further, preferably, the near infrared laser generator power reaches a single 100W, the emitted light angle is 30 degrees in the fast axis direction and 10 degrees in the slow axis direction.
In step S2, further comprising: the complex color laser beam is expanded or contracted according to the material shape of the foreign matter, for example, a kite line requires an extremely narrow laser spot line width, and a branch nest requires a larger laser spot line width.
In step S4, the step of determining the transparency of the foreign matter by reflecting the energy of the laser light includes:
filtering the radiated laser and receiving the reflected laser in the near infrared band;
converting the reflected laser light of the near infrared band into an electric signal (current value or voltage value);
the mapping relation between the transparency of the foreign matter and the electric signal is constructed, for example, an optical signal is converted into the electric signal through a photoelectric tube, the mapping relation between the transparency of the foreign matter and the electric signal can be determined through experiments, a neural network model between the transparency of the foreign matter and the electric signal can be constructed, and the mapping relation between the transparency of the foreign matter and the electric signal can be obtained through sample training.
Preferably, the step of determining the transparency of the foreign matter by reflecting the energy of the laser light further includes:
converting the reflected laser of the near infrared band into a voltage value;
setting a voltage threshold;
the voltage value is larger than the voltage threshold value, and the foreign matter transparency is large;
the voltage value is smaller than the voltage threshold value, and the foreign matter transparency is small.
In step S5, the step of adjusting the laser composition and power of the multiple color laser beam according to the transparency of the foreign matter includes:
the greater the transparency of the foreign matter, the greater the proportion of the laser light in the mid-infrared band in the complex color laser beam.
Preferably, the greater the foreign matter transparency, the higher the power of the multiple color laser beam.
In a preferred embodiment of the present invention, a method for removing foreign matter using a multi-color laser foreign matter removal device based on a foreign matter transparency indication includes:
aiming the laser emergent lens of the multi-color laser synthesis beam shrinking device at the foreign matters, and adjusting the holder to aim at the foreign matters. When the multi-color laser generating device is started to work, the semiconductor strip laser (a near infrared band laser generator) is in a full-work state, and a high-energy laser beam is formed through the focusing collimation of the multi-color laser synthesis beam shrinking device; and forming a laser cutter cutting path through the azimuth control function of the cradle head.
The reflecting mirror is adjusted to enable the laser reflected by the foreign matter to be emitted to the laser energy detector.
After the reflected laser enters the laser energy detector, filtering treatment is carried out, and only the reflected laser in the near infrared band is detected. Then the optical signal is converted into a voltage value through the action of a photoelectric tube and an amplifying circuit. If the voltage value Vn is higher than the voltage threshold V0, the foreign matter transparency is higher, and a red lamp is lightened; if the voltage value Vn is lower than the voltage threshold V0, the foreign matter transparency is lower, and a green light is turned on;
when the green light is on, the full working state of the semiconductor laser is kept, and the semiconductor laser is used for high-efficiency cutting of dark color low-transparency foreign matters; when the red light is on, all co2 lasers (laser generators in the middle infrared band) are turned on simultaneously, so that the laser generating device emits two-wavelength compound-color lasers simultaneously for high-efficiency cutting of light-colored high-transparency foreign matters.
The device and the method for removing the multi-color laser foreign matters based on the foreign matter transparency indication adjust the working condition (opening or closing) and the power of each wavelength laser in the multi-color laser generating device by judging the foreign matter transparency, so that the foreign matters can efficiently absorb the laser energy suitable for the characteristic wave band, and the higher cleaning efficiency is achieved.
While the foregoing disclosure shows exemplary embodiments of the invention, it should be noted that various changes and modifications could be made herein without departing from the scope of the invention as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the embodiments of the invention described herein need not be performed in any particular order. Furthermore, although elements of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Claims (8)
1. The device is characterized by comprising a multi-color laser generating device, a multi-color laser synthesis beam shrinking device, a cradle head and a laser energy detector, wherein the multi-color laser generating device comprises a plurality of laser generators with different wave bands, the multi-color laser synthesis beam shrinking device conducts and focuses lasers with different wave bands emitted by the multi-color laser generating device in a unidirectional mode to form multi-color laser beams, the multi-color laser beams are controlled by the cradle head to emit the multi-color laser beams to the foreign matters, the laser energy detector receives reflected lasers reflected by the foreign matters in a near infrared wave band, the transparency of the foreign matters is determined by the energy of the reflected lasers, the higher the energy of the reflected lasers is, the higher the transparency of the foreign matters is, and the multi-color laser synthesis beam shrinking device adjusts the laser composition and the power of the multi-color laser beams according to the transparency of the foreign matters to cut the foreign matters; the complex color laser synthesis beam shrinking device adopts the higher proportion of the laser of the middle infrared band relative to the laser of the near infrared band when the transparency is higher.
2. The foreign object removal apparatus of claim 1, further comprising a mirror for changing a laser light path of the reflected laser light reflected from the foreign object by the mirror to inject the reflected laser light into the laser energy detector.
3. The device for removing foreign matters from a multi-color laser light based on the transparency of the foreign matters according to claim 1, further comprising a cooling system for radiating heat from a laser generator of the multi-color laser light generating device.
4. The foreign matter removal apparatus of claim 1, wherein the wavelength bands include a near infrared band and a mid infrared band.
5. The device for removing foreign matters from a multi-color laser based on the transparency of foreign matters according to claim 1, wherein the laser energy detector receives the reflected laser light of the near infrared band, converts the optical signal into a voltage value through the photoelectric tube and the amplifying circuit, and the higher the voltage value is relative to the voltage threshold value, the higher the transparency of foreign matters is; the lower the voltage value relative to the voltage threshold value, the lower the foreign matter transparency.
6. The device for removing foreign matter by multi-color laser light based on transparency of foreign matter according to claim 1, wherein the laser energy detector further comprises an indicator lamp, and the transparency of the foreign matter is distinguished by the indicator lamps of different colors.
7. The device for removing foreign matters by using multiple color laser according to claim 1, wherein the distance between the multiple color laser synthesis beam shrinking device and the foreign matters is smaller when the transparency is higher.
8. A method for removing a multi-color laser foreign matter based on the transparency of the foreign matter is characterized by comprising the following steps:
emitting laser light of different wave bands by a multi-color laser generating device comprising a plurality of laser generators of different wave bands;
laser of different wave bands is conducted in one way and collimated and focused through a multi-color laser synthesis beam shrinking device, so that a multi-color laser beam is formed;
the multi-color laser beam is controlled by a cradle head to irradiate the foreign matters;
receiving reflected laser reflected by the foreign matters in the near infrared band through a laser energy detector, determining the transparency of the foreign matters through the energy of the reflected laser, wherein the higher the energy of the reflected laser is, the higher the transparency of the foreign matters is;
the laser composition and the power of the multi-color laser beam are adjusted according to the transparency of the foreign matters by the multi-color laser synthesis beam shrinking device, and the foreign matters are cut; the complex color laser synthesis beam shrinking device adopts the higher proportion of the laser of the middle infrared band relative to the laser of the near infrared band when the transparency is higher.
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