CN106124047A - A kind of laser detection system - Google Patents
A kind of laser detection system Download PDFInfo
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- CN106124047A CN106124047A CN201610416883.3A CN201610416883A CN106124047A CN 106124047 A CN106124047 A CN 106124047A CN 201610416883 A CN201610416883 A CN 201610416883A CN 106124047 A CN106124047 A CN 106124047A
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- 238000001514 detection method Methods 0.000 title claims abstract description 135
- 239000013307 optical fiber Substances 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 230000003287 optical effect Effects 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 14
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000000875 corresponding effect Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 229910052769 Ytterbium Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000023077 detection of light stimulus Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
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- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of laser detection system, including: laser output device, its outfan optical fiber is provided with the first light leak spot；Drive unit, is used for driving laser output device to pass through outfan optical fiber injection Output of laser；First detection part, is provided with the first space exploration, the first perforate, the second perforate and the first exploration hole, and outfan optical fiber sequentially passes through the first perforate, the first space exploration and the second perforate, and the first light leak spot is positioned at the first space exploration；First Electro-Optical Sensor Set, receives the part Output of laser from the first light leak spot leakage, and part Output of laser is converted into first signal of telecommunication；First analog-digital commutator, for being converted into the first digital signal by first signal of telecommunication；Processing means, calculates the power of the Output of laser that laser output device is exported according to the first digital signal.By the way, the present invention can be during the normal use of laser output device, the real power of the Output of laser that detection laser output device is exported.
Description
Technical field
The present invention relates to laser treatment technique field, particularly relate to a kind of laser detection system.
Background technology
When laser output device Output of laser, the power of the laser that laser output device is exported is to weigh laser output
The most normal important indicator of device.
The power detecting the laser that laser output device is exported in prior art mainly has following two method: (1) exists
During laser output device Output of laser, pumping source electric current and conversion efficiency thereof by laser output device calculate the laser exported
Power, but this calculated power is not the merit of laser of the actual output of outfan optical fiber of laser output device
Rate, the bigger error of both existence, accuracy is the highest；(2) directly laser is got to by the outfan optical fiber of laser output device
On water-cooled energy meter, by the power of water-cooled energy meter detection laser, although the power of the laser that water-cooled energy meter detects is
The actual power of the laser of outfan optical fiber output, but just can carry out owing to it needs that laser straight takes water-cooled energy meter
Detection, the normal use of laser output device can not be carried out with laser power detection simultaneously.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of laser detection system, it is achieved in laser output device just
During often using, the real power of the Output of laser that detection laser output device is exported.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of laser detection system, bag
Including: laser output device, its outfan optical fiber is provided with the first light leak spot；Drive unit, with described laser output device even
Connect, be used for driving described laser output device to penetrate Output of laser by described outfan optical fiber；First detection part, is provided with
One space exploration, the first perforate, the second perforate and the first exploration hole, wherein, described first perforate, the second perforate and the first detection
Kong Junyu the first space exploration connects, and described outfan optical fiber sequentially passes through described first perforate, the first space exploration and second
Perforate, described first light leak spot is positioned at described first space exploration；First Electro-Optical Sensor Set, is fixed on described first detection
In hole, for receiving the part Output of laser from described first light leak spot leakage, and described part Output of laser is converted into
First signal of telecommunication；First analog-digital commutator, for being connected with described first Electro-Optical Sensor Set, is used for receiving described first electricity
Signal, and described first signal of telecommunication is converted into the first digital signal；Processing means, with described first analog-digital commutator even
Connect, be used for receiving described first digital signal, and it is defeated to calculate described laser output device institute according to described first digital signal
The power of the Output of laser gone out.
Wherein, described laser detection system also includes the first alarm device；Described processing means is reported to the police with described first and is filled
Put connection；Described processing means is additionally operable to calculate between the power of the laser that normal power and described laser output device are exported
Difference；Judge that whether described difference is more than preset first threshold value；The most then control described first alarm device send output swash
Light abnormality alarming.
Wherein, described processing means is additionally operable to: according to the power of the laser that described laser output device is exported, and generates merit
Rate curve；The scheduled duration internal power wave crest point more than Second Threshold it is extracted in from described power curve；Judge described extraction
Whether the quantity of the wave crest point arrived is more than default value；The most then control described first alarm device and be emitted in laser output dress
Put and exported laser exists pulsed light too much alert.
Wherein, the signal end optical fiber of described laser output device is provided with the second light leak spot；Described laser detection system is also
Including the second detection part, the second Electro-Optical Sensor Set and the second analog-digital commutator；Described second detection part is provided with the second spy
Surveying space, the 3rd perforate, the 4th perforate and the second exploration hole, wherein, described 3rd perforate, the 4th perforate and the second exploration hole are equal
Connecting with the second space exploration, described signal end optical fiber sequentially passes through described 3rd perforate, the second space exploration and the 4th perforate,
Described second light leak spot is positioned at described second space exploration；Described second Electro-Optical Sensor Set is fixed on described second detection
Hole, the light echo of the laser output device that described second Electro-Optical Sensor Set leaks from described second light leak spot for reception, and will
Described light echo is converted into second signal of telecommunication；Described second analog-digital commutator respectively with the second Electro-Optical Sensor Set and processing means
Connecting, described second analog-digital commutator is converted to the second digital signal for second signal of telecommunication；Described processing means is used for root
The power of described light echo is calculated according to described second digital signal.
Wherein, described laser detection system also includes Secondary Report alarm device；Described processing means is reported to the police with described second and is filled
Put connection；Described processing means is additionally operable to judge that the power of described light echo whether more than zero, the most then controls described second and reports to the police
Device sends and there is light echo alarm.
Wherein, described processing means is connected with drive unit；Described processing means is additionally operable to: judge the merit of described light echo
Whether rate is more than Second Threshold；The most then control described Secondary Report alarm device and send the alarm of strong light echo, and control described CD-ROM drive
Dynamic device stops driving described laser output device, so that described laser output device stops exporting described Output of laser.
Wherein, described processing means is additionally operable to: calculate the power of light echo within the unit interval；According to calculated at list
The power of light echo in bit time, and combine default light echo material corresponding relation, obtain described laser output device and currently cut
The type of material
Wherein, described first Electro-Optical Sensor Set includes the first optical detection part, the first trans-impedance amplifier and the first amplifier,
Described first trans-impedance amplifier is connected with the first optical detection part and the first amplifier respectively, and described first optical detection part is arranged at institute
Stating in the first exploration hole, described first amplifier and the first analog-digital commutator connect；Described second Electro-Optical Sensor Set includes
Second optical detection part, the second trans-impedance amplifier and the second amplifier, described second trans-impedance amplifier respectively with the second optical detection part
Connecting with the second amplifier, described second optical detection part is arranged in described second exploration hole, described second amplifier and second
Analog-digital commutator connects.
Wherein, the shape of described first space exploration and the first detection part is spherical；Described second space exploration and
The shape of two detection parts is spherical.
Wherein, the shape of described first detection part and the second detection part is square；Described first exploration hole and described the
One light leak spot is corresponding, and described second exploration hole is corresponding with described second light leak spot.
The invention has the beneficial effects as follows: be different from the situation of prior art, the present invention arranges first on the first detection part
Space exploration, the first perforate, the second perforate and the first exploration hole, the first perforate, the second perforate and the first exploration hole are all with first
Space exploration connects, and is fixed in the first exploration hole by the first Electro-Optical Sensor Set, and the outfan optical fiber of laser output device depends on
Secondary passing the first perforate, the first space exploration and the second perforate, wherein, the first light leak spot is positioned at the first space exploration, and first
Electro-Optical Sensor Set receives the part Output of laser from the first light leak spot leakage, and part Output of laser is converted into the first electricity
Signal, first signal of telecommunication is converted into the first digital signal by the first analog-digital commutator, and processing means is according to the first digital signal
Calculate the power of the Output of laser that laser output device is exported, it is achieved the inspection of the Output of laser that laser output device is exported
Survey, further, owing to the outfan optical fiber of laser output device is through the first detection part rather than by the first detection part setting
In the end of outfan optical fiber, therefore, the first detection part does not interferes with the Output of laser that outfan optical fiber externally penetrates, it is achieved
During the normal use of laser output device, the real power of the Output of laser that detection laser output device is exported.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of laser detection system the first embodiment of the present invention；
Fig. 2 is the schematic diagram of laser detection system the second embodiment of the present invention；
Fig. 3 is the schematic diagram that Electro-Optical Sensor Set of the present invention is installed on that the mounting means of detection part is integrating sphere installation；
Fig. 4 is the schematic diagram that mounting means is space mounting that Electro-Optical Sensor Set of the present invention is installed on detection part.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Refer to Fig. 1, laser detection system 20 include laser output device 21, drive unit the 22, first detection part 23,
First Electro-Optical Sensor Set the 24, first analog-digital commutator 25 and processing means 26.
The outfan optical fiber 211 of laser output device 21 is provided with the first light leak spot 2111.Drive unit 22 and laser
Output device 21 connects, and is used for driving laser output device 21 to penetrate Output of laser by outfan optical fiber 211.First detection part
23 are provided with the first space exploration the 231, first perforate the 232, second perforate 233 and the first exploration hole 234, wherein, the first perforate
232, the second perforate 233 all connects with the first space exploration 231 with the first exploration hole 234, and outfan optical fiber 211 sequentially passes through
One perforate the 232, first space exploration 231 and the second perforate 233, the first light leak spot 2111 is positioned at the first space exploration 231, from
And make the part Output of laser revealed from the first light leak spot 2111 be positioned at the first space exploration 231.First photodetection dress
Put 24, be fixed in the first exploration hole 234, for receiving the part Output of laser from the first light leak spot 2111 leakage, and will
This part Output of laser is converted into first signal of telecommunication.First analog-digital commutator 25, for the first Electro-Optical Sensor Set 24 even
Connect, for receiving first signal of telecommunication, and first signal of telecommunication is converted into the first digital signal.Processing means 26, with the first mould
Analog-to-digital conversion apparatus 25 connects, and for receiving the first digital signal, and calculates laser output device 21 institute according to the first digital signal
The power of the Output of laser of output.
Owing to the outfan optical fiber 211 of laser output device 21 is through the first detection part 23 rather than by the first detection
Part 23 is arranged at the end of outfan optical fiber 211, and therefore, the first detection part 23 does not interferes with outfan optical fiber 211 and externally penetrates
Output of laser so that in laser output device 21 during cuing off, detect laser output device 21
The real power of the Output of laser exported.
What deserves to be explained is: by first detection part the 23, first Electro-Optical Sensor Set the 24, first analog-digital commutator 25
When detecting the power of the Output of laser that laser output device 21 is exported with processing means 26, it is also possible to directly Output of laser is beaten
To water-cooled energy meter, calibrated by water-cooled energy meter.
After obtaining the power of Output of laser, it is also possible to judge that Output of laser is the most just according to the power of Output of laser
Often, if abnormal, also can alert, then refer to Fig. 2, laser detection system 20 also includes the first alarm device 27.Process
Device 26 is connected with the first alarm device 27.Processing means 26 is additionally operable to calculate normal power and is exported with laser output device 21
Output of laser power between difference, it is judged that difference whether more than preset first threshold value, the most then controls the first warning dress
Put 27 and send laser abnormality alarming, if it is not, then explanation Output of laser is normal.Wherein, normal power refers to laser output device 21
Power during normal output, it can be tested in advance and obtain.Output of laser can refer to not exist Output of laser or defeated extremely
Go out laser attenuation excessive, and there is not Output of laser it also will be understood that Output of laser decays to not exist, therefore, it can by setting
Put the concrete numerical value of first threshold, it is achieved to there is not Output of laser or the Output of laser excessive detection of decay, such as: defeated
Go out laser normal time, the power 10W of Output of laser, if the power detected is 10W, then Output of laser is normal, if detecting
Power is 7W, and first threshold is set as 2W, then 10W-7W=3W > 2W, then refer to that Output of laser decay is excessive, if detect
Power is 0W, and first threshold is set as 9.9W, then 10W-0W=10W > 9.9W, then refer to there is not Output of laser.
Further, it is also possible to whether detection Output of laser exists pulsed light, when the quantity of pulsed light is too much, accuses
Alert, then processing means 26 is additionally operable to the power of the laser exported according to laser output device 21, generates power curve, from power
Being extracted in the scheduled duration internal power wave crest point more than Second Threshold on curve, the quantity of the wave crest point that judgement is extracted is the biggest
In default value, the most then control the first alarm device 27 and be emitted in the laser that laser output device 21 is exported and there is arteries and veins
Wash too much alarm off.Different laser output device, the scope of the power of its emitted Output of laser is not phase, therefore,
The concrete numerical value of scheduled duration, Second Threshold and default value can set according to practical situation, defeated to adapt to different laser
Going out device, such as: scheduled duration is set as 1 minute, Second Threshold is set as 10 watts, and default value is set as 3, when laser is defeated
Go out device when exporting more than 3 and the power pulsed light more than 10 watts within 1 minute, then explanation laser output device exists
Too much offset light, the poor stability of laser of laser output device output, need laser output device 21 is adjusted or
Person keeps in repair, to improve the stability of laser output device Output of laser.
In order to realize detecting the light echo of laser output device 21, laser detection system 20 also includes the second detection part
28, the second Electro-Optical Sensor Set 29 and the second analog-digital commutator 30.
The signal end optical fiber 212 of laser output device 21 is provided with the second light leak spot 2121.Second detection part 28 is provided with
Second space exploration the 281, the 3rd perforate the 282, the 4th perforate 283 and the second exploration hole 284, wherein, the 3rd perforate the 282, the 4th
Perforate 283 all connects with the second space exploration 281 with the second exploration hole 284, and the signal end optical fiber 212 of laser output device 21 depends on
Secondary pass the 3rd perforate the 282, second space exploration 281 and the 4th perforate 283, the second light leak spot 2121 of signal end optical fiber 212
It is positioned at the second space exploration 281.Second Electro-Optical Sensor Set 29 is fixed on the second exploration hole 284, the second Electro-Optical Sensor Set
29 for receiving the light echo of the laser output device 21 from the second light leak spot 2121 leakage, and light echo is converted into the second telecommunications
Number.Second analog-digital commutator 30 is connected with the second Electro-Optical Sensor Set 29 and processing means 26 respectively, the second analog digital conversion dress
Put 30 and be converted to the second digital signal for second signal of telecommunication.Processing means 26 is for calculating light echo according to the second digital signal
Power.
The power of the Output of laser that the power of the light echo of detection laser output device 21 and detection laser are exported can
To synchronize to carry out, and by monitoring power and the power of Output of laser of light echo in real time, detection light echo is to Output of laser
Impact.
Further, when the power of light echo being detected, can judge laser output device 21 whether according to the power of light echo
There is light echo, then laser detection system 20 also includes Secondary Report alarm device 31, and processing means is additionally operable to judge that the power of light echo is
No it is more than zero, the most then controls Secondary Report alarm device 31 and send and there is light echo alarm.The power of light echo is more than zero, illustrates to exist
Light echo, light echo power is equal to zero, then explanation does not has light echo.
It is, of course, also possible to whether there is strong light echo according to the power detection of light echo, if there is strong light echo, then stop laser defeated
Go out device 21 and export this Output of laser, then processing means 26 is connected with drive unit 22.Processing means is additionally operable to judge light echo
Power whether more than Second Threshold, the most then control Secondary Report alarm device 31 and send the alarm of strong light echo, and control optical drive
Device 22 stops driving laser output device 21, so that laser output device 21 stops exporting this Output of laser.
When laser output device 21 cuts different types of material, the power of produced light echo is different, therefore,
Can also release, by the power of light echo is counter, the material that laser cutting device is currently cut, then processing means 26 is additionally operable to: meter
Calculate the power of light echo within the unit interval, according to the calculated power of light echo within the unit interval, obtain laser output dress
Put the type of 21 materials currently cut.Wherein, preset light echo material corresponding relation and refer to the power of light echo and the class of material
The corresponding relation of type, and default light echo material corresponding relation is to pre-build corresponding relation, after obtaining the power of light echo,
The type of corresponding material can be obtained according to default light echo material corresponding relation.
It should be understood that the shape of the first space exploration 231 and the first detection part 23 can be spherical.When the first detection
Space 231 and when being shaped as spherical of the first detection part 23, as it is shown on figure 3, then the first Electro-Optical Sensor Set 24 is installed on first
The mounting means of detection part 23 is that integrating sphere is installed, and the inwall of the first detection part 23 can be let out from the first light leak spot 2111
The part Output of laser of leakage carries out diffuse-reflectance, and the first Electro-Optical Sensor Set 24 is able to receive that the inwall diffuse-reflectance of the first detection part 23
Light so that the first photoelectricity monitor be able to detect that more completely first light leak spot 2111 leakage part output swash
Light, and then make the testing result of the first photoelectricity monitor more accurately, more stable；Same, the second space exploration 281 and the
The shape of two detection parts 28 can also be spherical, when the shape of the second space exploration 281 and the second detection part 28 is spherical,
The testing result of the second photoelectricity monitor is more accurate, more stable.Certainly, when the first space exploration 231 and the first detection part 23
When being shaped as spherical, the line of the first perforate 232 and the second perforate 233 is preferably the center line of the first detection part 23, so that
The testing result of one Electro-Optical Sensor Set 24 is more preferable, and when the second space exploration 281 and the second detection part 28 be shaped as spherical
Time, the line of the first perforate 232 and the second perforate 233 is preferably also the center line of the second detection part 28, so that the second photodetection
The testing result of device 29 is more preferable.In other alternate embodiments, the shape of the first detection part 23 and the second detection part 28 is also
Can be square, as shown in Figure 4, and the first exploration hole 234 be corresponding with described first light leak spot 2111, so that the first smooth electrical resistivity survey
Survey device 24 and can detect the part Output of laser from the first light leak spot 2111 leakage, the second exploration hole 284 and the second light leak spot
2121 is corresponding, so that the second Electro-Optical Sensor Set 29 can detect the light echo from the second light leak spot 2121 leakage.When the first detection
Space 231 and when being shaped as square of the first detection part 23, then the first Electro-Optical Sensor Set 24 be installed on the first detection part 23 with
And second Electro-Optical Sensor Set 29 be installed on the mounting means of the second detection part 28 and be space mounting.And when the first detection part 23
With when being shaped as square of the second detection part 28, the first Electro-Optical Sensor Set 24 and testing result of the second Electro-Optical Sensor Set 29
Not as the first detection part 23 and the second detection part 28 when being shaped as spherical accurate.Further, real in laser detection system 20
Each existing function can also configure single detection part, photoelectric conversion device and analog-digital commutator, such as: Output of laser
Power calculation, Output of laser abnormality detection, pulsed light too much detect, light echo detection, the detection of strong light echo and material to be cut
Type detection be respectively configured a set of detection part, photoelectric conversion device and analog-digital commutator, and in Output of laser abnormality detection
Whether there is Output of laser, light echo detection and strong light echo detection and need not high precision test, then the shape of the detection part of its correspondence
It is chosen as square, and Output of laser in the type of the power calculation of Output of laser, material to be cut, Output of laser abnormality detection
The excessive detection of decay require to compare to accuracy of detection, then the shape of the detection part of its correspondence is chosen as spherical.
Wherein, the first Electro-Optical Sensor Set 24 includes that the first optical detection part (not shown), the first trans-impedance amplifier (are schemed not
Show) and the first amplifier (not shown), the first trans-impedance amplifier is connected with the first optical detection part and the first amplifier respectively, and first
Optical detection part is arranged in the first exploration hole 234, and the first amplifier and the first analog-digital commutator 25 connect.First optical detection part
For receiving the part Output of laser from the first light leak spot 2111 leakage, and the part Output of laser detected is converted to the
One dark current, the first dark current is converted to the first current signal by the first trans-impedance amplifier, and the first amplifier is for the first electricity
Stream signal is amplified processing, and wherein, the amplification of the first amplifier can set according to practical situation.Second photodetection
Device 29 includes the second optical detection part (not shown), the second trans-impedance amplifier (not shown) and the second amplifier (not shown), the
Two trans-impedance amplifiers are connected with the second optical detection part and the second amplifier respectively, and the second optical detection part is arranged at the second exploration hole
In 284, the second amplifier and the second analog-digital commutator 30 connect.Second optical detection part is for receiving from the second light leak spot 2121
The light echo of leakage, and the light echo detected is converted to the second dark current, the second dark current is changed by the second trans-impedance amplifier
Being the second current signal, the second amplifier for being amplified process, wherein, the amplification of the second amplifier to the second current signal
Multiple can set according to practical situation.
Laser output device 21 also includes pumping source 213, bundling device the 214, first grating the 215, second grating 216 and ytterbium optical fiber
217, signal end optical fiber 212 and pumping source 213 are connected with bundling device 214 respectively, and the first grating 215 is connected with bundling device 214, ytterbium light
Fine 217 are connected with the first grating 215 and the second grating 216 respectively, and outfan optical fiber 211 is connected with the second grating 216, optical drive
Device 22 is connected with pumping source 213.
In embodiments of the present invention, the first detection part 23 is arranged first space exploration the 231, first perforate 232,
Two perforate 233 and the first exploration holes 234, first perforate the 232, second perforate 233 and the first exploration hole 234 are all empty with the first detection
Between 231 connection, the first Electro-Optical Sensor Set 24 is fixed in the first exploration hole 234, the outfan light of laser output device 21
Fine 211 sequentially pass through the first perforate the 232, first space exploration 231 and the second perforate 233, and wherein, the first light leak spot 2111 is positioned at
In first space exploration 231, the first Electro-Optical Sensor Set 24 receives the part Output of laser from the first light leak spot 2111 leakage, and
And part Output of laser is converted into first signal of telecommunication, first signal of telecommunication is converted into the first numeral by the first analog-digital commutator 25
Signal, processing means 26 calculates the power of the Output of laser that laser output device 21 is exported according to the first digital signal, it is achieved
Detection to the Output of laser that laser output device 21 is exported, further, due to the outfan optical fiber of laser output device 21
211 is through the first detection part 23 rather than end that the first detection part 23 is arranged at outfan optical fiber 211, therefore, first
Detection part 23 does not interferes with the Output of laser that outfan optical fiber 211 externally penetrates, it is achieved in laser output device 21 in use
During, the real power of the Output of laser that detection laser output device 21 is exported.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a laser detection system, it is characterised in that including:
Laser output device, its outfan optical fiber is provided with the first light leak spot；
Drive unit, is connected with described laser output device, is used for driving described laser output device by described outfan
Optical fiber injection Output of laser；
First detection part, is provided with the first space exploration, the first perforate, the second perforate and the first exploration hole, wherein, described first
Perforate, the second perforate all connect with the first space exploration with the first exploration hole, and described outfan optical fiber sequentially passes through described first
Perforate, the first space exploration and the second perforate, described first light leak spot is positioned at described first space exploration；
First Electro-Optical Sensor Set, is fixed in described first exploration hole, for receiving the portion from described first light leak spot leakage
Divide Output of laser, and described part Output of laser is converted into first signal of telecommunication；
First analog-digital commutator, for being connected with described first Electro-Optical Sensor Set, and receives described first signal of telecommunication, and
And described first signal of telecommunication is converted into the first digital signal；
Processing means, is connected with described first analog-digital commutator, is used for receiving described first digital signal, and according to described
First digital signal calculates the power of the Output of laser that described laser output device is exported.
Laser detection system the most according to claim 1, it is characterised in that
Described laser detection system also includes the first alarm device；
Described processing means is connected with described first alarm device；
Described processing means is additionally operable to calculate between the power of the laser that normal power and described laser output device are exported
Difference；
Judge that whether described difference is more than preset first threshold value；
The most then control described first alarm device and send Output of laser abnormality alarming.
Laser detection system the most according to claim 2, it is characterised in that
Described processing means is additionally operable to:
According to the power of the laser that described laser output device is exported, generate power curve；
The scheduled duration internal power wave crest point more than Second Threshold it is extracted in from described power curve；
Whether the quantity of the wave crest point extracted described in judgement is more than default value；
The most then control described first alarm device and be emitted in that to there is pulsed light in the laser that laser output device is exported too much
Alarm.
Laser detection system the most according to claim 1, it is characterised in that
The signal end optical fiber of described laser output device is provided with the second light leak spot；
Described laser detection system also includes the second detection part, the second Electro-Optical Sensor Set and the second analog-digital commutator；
Described second detection part is provided with the second space exploration, the 3rd perforate, the 4th perforate and the second exploration hole, wherein, described
3rd perforate, the 4th perforate all connect with the second space exploration with the second exploration hole, and described signal end optical fiber sequentially passes through described
3rd perforate, the second space exploration and the 4th perforate, described second light leak spot is positioned at described second space exploration；
Described second Electro-Optical Sensor Set is fixed on described second exploration hole, and described second Electro-Optical Sensor Set is for receiving from institute
State the light echo of the laser output device of the second light leak spot leakage, and described light echo is converted into second signal of telecommunication；
Described second analog-digital commutator is connected with the second Electro-Optical Sensor Set and processing means respectively, described second analog digital conversion
Device is converted to the second digital signal for second signal of telecommunication；
Described processing means for calculating the power of described light echo according to described second digital signal.
Laser detection system the most according to claim 4, it is characterised in that
Described laser detection system also includes Secondary Report alarm device；
Described processing means is connected with described Secondary Report alarm device；
Described processing means is additionally operable to judge that the power of described light echo whether more than zero, the most then controls described second warning dress
Put to send and there is light echo alarm.
Laser detection system the most according to claim 5, it is characterised in that
Described processing means is connected with drive unit；
Described processing means is additionally operable to:
Judge that whether the power of described light echo is more than Second Threshold；
The most then control described Secondary Report alarm device and send the alarm of strong light echo, and control the stopping driving of described drive unit
Described laser output device, so that described laser output device stops exporting described Output of laser.
Laser detection system the most according to claim 4, it is characterised in that
Described processing means is additionally operable to:
Calculate the power of light echo within the unit interval；
According to the calculated power of light echo within the unit interval, and combine default light echo material corresponding relation, obtain described
The type of the material that laser output device is currently cut.
Laser detection system the most according to claim 4, it is characterised in that
Described first Electro-Optical Sensor Set includes the first optical detection part, the first trans-impedance amplifier and the first amplifier, described first
Trans-impedance amplifier is connected with the first optical detection part and the first amplifier respectively, and described first optical detection part is arranged at described first and visits
In gaging hole, described first amplifier and the first analog-digital commutator connect；
Described second Electro-Optical Sensor Set includes the second optical detection part, the second trans-impedance amplifier and the second amplifier, described second
Trans-impedance amplifier is connected with the second optical detection part and the second amplifier respectively, and described second optical detection part is arranged at described second and visits
In gaging hole, described second amplifier and the second analog-digital commutator connect.
9. according to the laser detection system described in any one in claim 1～8, it is characterised in that
The shape of described first space exploration and the first detection part is spherical；
The shape of described second space exploration and the second detection part is spherical.
10. according to the laser detection system described in any one in claim 1～8, it is characterised in that
The shape of described first detection part and the second detection part is square；
Described first exploration hole is corresponding with described first light leak spot, and described second exploration hole is corresponding with described second light leak spot.
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Application publication date: 20161116 |