CN102554478A - Control device and control method for power of high-speed laser - Google Patents
Control device and control method for power of high-speed laser Download PDFInfo
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- CN102554478A CN102554478A CN2011104398264A CN201110439826A CN102554478A CN 102554478 A CN102554478 A CN 102554478A CN 2011104398264 A CN2011104398264 A CN 2011104398264A CN 201110439826 A CN201110439826 A CN 201110439826A CN 102554478 A CN102554478 A CN 102554478A
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Abstract
The invention relates to a control device and a control method for power of a high-speed laser. The control device comprises a single chip microcomputer control module, a machine tool injection power sampling module for acquiring machine tool injection power signals, a laser actual power sampling module for acquiring laser actual power signals, an analog-to-digital conversion module for analog-to-digital conversion of machine tool injection power signals and laser actual power signals and a feedback circuit. The single chip microcomputer control module is used for calculating regulating quantity of power by adopting proportion integration differentiation (PID) algorithm based on laser actual power signals and machine tool injection power signals after analog-to-digital conversion and sending the regulating quantity of power to the feedback circuit. The feedback circuit is used for regulating machine tool injection power signals based on the regulating quantity of power and obtaining laser power control signals after feedback. By adopting the control device, laser power of a laser can be stabilized, machine tool power signals can also be responded fast, and the laser can be led to provide stable laser power to a machine tool for cutting.
Description
Technical field
The present invention relates to the laser process equipment technical field, more particularly, relate to a kind of high-speed laser output control device and method.
Background technology
In existing cut was used, laser instrument need provide stable high power laser to cut and respond fast the lathe power signal to lathe.But because of a variety of causes, comprise that air pressure is unstable, power descends or the like, can cause the shakiness of laser power.
Because the energy of laser is provided by electric energy, so the laser energy that the control power supply just can be stable, the fluctuation of laser power just can remedy through power supply.Carrying out lathe in when cutting, requiring control circuit can calculate the residual quantity between the injecting power of realtime power and lathe of laser instrument at a high speed, fast, the injection electric current of time update power supply makes the waveform of laser energy reach the waveform similarity of lathe injecting power.
Summary of the invention
The technical problem that the present invention will solve is; Above-mentioned defective to prior art; A kind of high-speed laser output control device and method are provided; It can stable laser laser power, can respond the lathe power signal fast again, make laser instrument provide stable laser power to cut to lathe.
The technical solution adopted for the present invention to solve the technical problems is:
Construct a kind of high-speed laser output control device, comprise single chip control module, be used to gather lathe injecting power signal lathe injecting power sampling module, be used to gather laser instrument actual power signal laser instrument actual power sampling module, be used for said lathe injecting power signal and said laser instrument actual power signal are carried out analog-to-digital analog-to-digital conversion module and feedback circuit; Wherein,
Said lathe injecting power sampling module and said laser instrument actual power sampling module are electrically connected with the input of said single chip control module through said analog-to-digital conversion module respectively;
Said single chip control module is used for adopting the regulated quantity of pid algorithm rated output, and sending to said feedback circuit according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion;
Said feedback circuit is used for said lathe injecting power signal being regulated the laser power control signal after obtaining feeding back according to the regulated quantity adjusting of said power.
Control device of the present invention, wherein, said feedback circuit comprises:
The first lathe injecting power signal receiving unit is used to receive the lathe injecting power signal that said lathe injecting power sampling module sends;
The regulated quantity receiving element is used to receive the regulated quantity of the power that said single chip control module sends;
The control signal computing unit is used for calculating said laser power control signal according to said lathe injecting power signal and said regulated quantity;
The control signal output unit is used to export said laser power control signal.
Control device of the present invention, wherein, said control signal computing unit comprises first operational amplifier, second operational amplifier and the digital regulation resistance that is connected in series; Wherein,
The in-phase input end of said first operational amplifier inserts said lathe injecting power signal, and the reverse input end of said first operational amplifier is connected with output, and the output of said first operational amplifier is connected with said digital regulation resistance;
Said digital regulation resistance is connected with said regulated quantity receiving element, to regulate the position of tap terminals according to said regulated quantity;
The in-phase input end of said second operational amplifier connects the tap terminals of said digital regulation resistance, and the reverse input end of said second operational amplifier is connected with output, and the output of said second operational amplifier is connected with said output unit.
Control device of the present invention, wherein, said single chip control module comprises: the second lathe injecting power signal receiving unit, laser instrument actual power signal receiving unit and regulated quantity computing unit; Wherein,
The said second lathe injecting power signal receiving unit is used to receive the lathe injecting power signal that said analog-to-digital conversion module sends;
Said laser instrument actual power signal receiving unit is used to receive the laser instrument actual power signal that said analog-to-digital conversion module sends;
Said regulated quantity computing unit is used for according to said laser machine actual power signal and said lathe injecting power signal, adopts the regulated quantity of pid algorithm rated output;
The regulated quantity output unit is used to export said regulated quantity.
Control device of the present invention, wherein, said single chip control module also comprises: the tap position that is connected with said digital regulation resistance is regulated control module, is used for regulating automatically according to said regulated quantity the position of said digital regulation resistance tap terminals.
The present invention also provides a kind of high-speed laser Poewr control method, wherein, comprises step:
Gather lathe injecting power signal;
Gather laser instrument actual power signal;
Said lathe injecting power signal and said laser instrument actual power signal are carried out analog-to-digital conversion;
According to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion, adopt the regulated quantity of pid algorithm rated output;
The laser power control signal after obtaining feeding back is regulated in regulated quantity adjusting according to said power to said lathe injecting power signal.
Control method of the present invention, wherein, said step is regulated according to the regulated quantity of said power said lathe injecting power signal is regulated, and the laser power control signal after obtaining feeding back specifically comprises:
Receive the lathe injecting power signal that said lathe injecting power sampling module sends;
Receive the regulated quantity of the power of said single chip control module transmission;
Calculate said laser power control signal according to said lathe injecting power signal and said regulated quantity;
Export said laser power control signal.
Control method of the present invention, wherein, said step calculates said laser power control signal according to said lathe injecting power signal and said regulated quantity and specifically comprises:
Employing comprises that the feedback circuit of first operational amplifier, second operational amplifier and digital regulation resistance calculates said laser power control signal; Wherein,
The in-phase input end of said first operational amplifier inserts said lathe injecting power signal, and the reverse input end of said first operational amplifier is connected with output, and the output of said first operational amplifier is connected with said digital regulation resistance;
Said digital regulation resistance is connected with said regulated quantity receiving element, to regulate the position of tap terminals according to said regulated quantity;
The in-phase input end of said second operational amplifier connects the tap terminals of said digital regulation resistance, and the reverse input end of said second operational amplifier is connected with output, and the output of said second operational amplifier is connected with said output unit.
Control method of the present invention, wherein, said step adopts the regulated quantity of pid algorithm rated output specifically to comprise according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion:
Receive the lathe injecting power signal that said analog-to-digital conversion module sends;
Receive the laser instrument actual power signal that said analog-to-digital conversion module sends;
According to said laser machine actual power signal and said lathe injecting power signal, adopt the regulated quantity of pid algorithm rated output;
Export said regulated quantity.
Control method of the present invention; Wherein, Said step adopts the regulated quantity of pid algorithm rated output also to comprise: the position of regulating said digital regulation resistance tap terminals according to said regulated quantity automatically according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion.
Beneficial effect of the present invention is: through adopting single chip control module according to through the regulated quantity of the laser machine actual power signal after the analog-to-digital conversion with lathe injecting power signal, employing pid algorithm rated output, and send to feedback circuit; Regulate according to the regulated quantity of power by feedback circuit again lathe injecting power signal is regulated; Laser power control signal after obtaining feeding back; This laser power control signal promptly is the signal of the laser power of correct control laser instrument; Laser power that like this can stable laser can respond the lathe power signal again fast, makes laser instrument provide stable laser power to cut to lathe.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the high-speed laser output control device theory diagram of preferred embodiment of the present invention;
Fig. 2 is a feedback circuit theory diagram in the high-speed laser output control device of preferred embodiment of the present invention;
Fig. 3 is a control signal computing unit circuit diagram in the high-speed laser output control device of preferred embodiment of the present invention;
Fig. 4 is a single chip control module theory diagram in the high-speed laser output control device of preferred embodiment of the present invention.
The specific embodiment
The high-speed laser output control device theory diagram of preferred embodiment of the present invention is as shown in Figure 1, comprises single chip control module 10, lathe injecting power sampling module 30, laser instrument actual power sampling module 40, analog-to-digital conversion module 20 and feedback circuit 50.Wherein, Lathe injecting power sampling module 30 is used to gather lathe injecting power signal; Laser instrument actual power sampling module 40 is used to gather laser instrument actual power signal, and analog-to-digital conversion module 20 is used for lathe injecting power signal and laser instrument actual power signal are carried out analog-to-digital conversion.Wherein, lathe injecting power sampling module 30 is electrically connected with the input of single chip control module 10 through analog-to-digital conversion module 20 respectively with laser instrument actual power sampling module 40; Single chip control module 10 is used for according to laser machine actual power signal and lathe injecting power signal after the process analog-to-digital conversion; Adopt PID (Proportion Integration Differentiation; PID) regulated quantity of algorithm computation power, and send to feedback circuit 50; Feedback circuit 50 is used for lathe injecting power signal being regulated the laser power control signal after obtaining feeding back according to the regulated quantity adjusting of power.
During laser works; Single chip control module 10 by above-mentioned control device receives through laser machine actual power signal and lathe injecting power signal after the analog-to-digital conversion in real time, uses pid algorithm to calculate the regulated quantity of power then, is placed on regulated quantity on the feedback circuit 50 in advance; Promptly send to feedback circuit 50; With the above-mentioned laser power control signal of real-time generation, resulting laser power control signal promptly is the signal of the laser power of correct control laser instrument, inputs to feedback circuit 50 owing to can be calculated regulated quantity in advance by single chip control module 10 after good; Therefore can realize the high-speed feedback of laser power; Laser power that like this can stable laser can respond the lathe power signal again fast, makes laser instrument provide stable laser power to cut to lathe.
In the foregoing description, the size of lathe injecting power signal generally is to represent through the size of 0-10V voltage.Feedback circuit 50 preferably is made up of digital regulation resistance, and is in series with lathe injecting power signal, and the change through regulated quantity control figure potentiometer taper position just can change the voltage that lathe is defeated by laser instrument.
In a further embodiment, as shown in Figure 2, above-mentioned feedback circuit 50 comprises the first lathe injecting power signal receiving unit 51, regulated quantity receiving element 52, control signal computing unit 53 and control signal output unit 54.Wherein, the first lathe injecting power signal receiving unit 51 is used to receive the lathe injecting power signal that lathe injecting power sampling module 30 sends; Regulated quantity receiving element 52 is used to receive the regulated quantity of the power that single chip control module 10 sends; Control signal computing unit 53 is used for calculating the laser power control signal according to lathe injecting power signal and regulated quantity; Control signal output unit 54 is used for the output laser power control signal.Wherein, Control signal computing unit 53 adopts the regulated quantity of pid algorithm rated output; Pid algorithm is that ratio (P), integration (I) and the differential (D) in deviation controlled, and can be increment type PID algorithm, position model pid algorithm or differential forward PID algorithm; Concrete computational process can repeat no more at this with reference to pid algorithm of the prior art.The above-mentioned first lathe injecting power signal receiving unit 51 can be a circuit with regulated quantity receiving element 52, also can be the input of single components and parts; Control signal output unit 54 can be concrete circuit, also can be the output of single components and parts.
In embodiment further, as shown in Figure 3, the control signal computing unit 53 of above-mentioned feedback circuit 50 comprises first operational amplifier 531, second operational amplifier 533 and digital current potential 532 devices that are connected in series.Wherein, the in-phase input end of first operational amplifier 531 inserts lathe injecting power signal, and the reverse input end of first operational amplifier 531 is connected with output, and the output of first operational amplifier 531 is connected with digital regulation resistance 532; Digital regulation resistance 532 is connected with regulated quantity receiving element 52, to regulate the position of tap terminals according to regulated quantity; The in-phase input end of second operational amplifier 533 connects the tap terminals of digital regulation resistance 532, and the reverse input end of second operational amplifier 533 is connected with output, and the output of second operational amplifier 533 is connected with output unit.The first lathe injecting power signal receiving unit 51 is appreciated that the in-phase input end into above-mentioned first operational amplifier 531 with regulated quantity receiving element 52; Control signal output unit 54 is appreciated that the output into above-mentioned second operational amplifier 533.
In the above-mentioned feedback circuit, because digital regulation resistance 532 is in series with lathe injecting power signal, the position that therefore changes digital regulation resistance 532 tap terminals just can change the power of output laser.When the laser instrument actual power is higher; The position that single chip control module 10 is turned down tap terminals through the control of output regulated quantity; Reduce to be linked into digital regulation resistance 532 resistance values in the feedback circuit 50; The laser power control signal corresponding voltage value that then produces just diminishes, and the actual power of control laser instrument descends; When the laser instrument actual power is on the low side; Single chip control module 10 is heightened the position of tap terminals through the control of output regulated quantity; Increase and be linked into digital regulation resistance 532 resistance values in the feedback circuit 50; It is big that the laser power control signal corresponding voltage value that then produces just becomes, and the actual power of control laser instrument rises.So just realize the feedback of laser power, reached the purpose of stable laser power.Because lathe injecting power signal and digital regulation resistance 532 are to be connected in series; Promptly can be placed on regulated quantity on the feedback circuit 50 in advance; Whenever lathe injecting power signal being arranged when the feedback circuit 50, output be exactly the signal of the laser power of correct control laser instrument.Input is exactly the time-delay of feedback circuit 50 with time-delay between exporting, and the time-delay of feedback circuit is mainly from digital regulation resistance 532, and the time-delay of 532 pairs of signals of digital regulation resistance is generally less than 200 microseconds, so just can realize the high-speed feedback of laser power.
In the foregoing description; Digital regulation resistance 532 generally is made up of digital control circuit, memory and RDAC circuit; Wherein the RDAC circuit is the important component part of digital regulation resistance; It is a kind of special D/A switch circuit, and the analog quantity that different with general digital/analog circuitry is after the conversion is not magnitude of voltage but resistance value.The version of the digital regulation resistance digital control circuit of different model is different, but major function all is that the control signal of input is handled back control RDAC, and nonvolatile memory is used for the tap position of storage control signal and potentiometer.In the foregoing description, the preferred digital regulation resistance that adopts is the AD5293BRUZ of ADI company, and its tap number is 1024, and its control signal is the regulated quantity signal of single chip control module 10 outputs.
Further, as shown in Figure 4, the single chip control module 10 in the above-mentioned control device comprises: the second lathe injecting power signal receiving unit 11, laser instrument actual power signal receiving unit 12, regulated quantity computing unit 13 and regulated quantity output unit 14.Wherein, the second lathe injecting power signal receiving unit 11 is used to receive the lathe injecting power signal that analog-to-digital conversion module 20 sends; Laser instrument actual power signal receiving unit 12 is used to receive the laser instrument actual power signal that analog-to-digital conversion module 20 sends; Regulated quantity computing unit 13 is used for according to laser machine actual power signal and lathe injecting power signal, adopts the regulated quantity of PI D-algorithm rated output; Regulated quantity output unit 14 is used to export regulated quantity.Wherein, The regulated quantity of pid algorithm rated output is adopted in the concrete calculating of regulated quantity computing unit 13; Pid algorithm is that ratio (P), integration (I) and the differential (D) in deviation controlled, and can be increment type PID algorithm, position model pid algorithm or differential forward PID algorithm; Concrete computational process can repeat no more at this with reference to pid algorithm of the prior art.
Further, above-mentioned single chip control module 10 also comprises the tap position adjusting control module that is connected with digital regulation resistance 532, is used for regulating automatically according to regulated quantity the position of digital regulation resistance 532 tap terminals.When the laser instrument actual power is higher; Tap position is regulated the position that tap terminals is turned down in control module control; Reduce to be linked into the digital regulation resistance resistance value in the feedback circuit, the laser power control signal corresponding voltage value that then produces just diminishes, and the actual power of control laser instrument descends; When the laser instrument actual power is on the low side; Tap position is regulated the position that tap terminals is heightened in control module control; Increase is linked into the digital regulation resistance resistance value in the feedback circuit, and it is big that the laser power control signal corresponding voltage value that then produces just becomes, and the actual power of controlling laser instrument rises.So just realize the feedback of laser power, reached the purpose of stable laser power.
In another embodiment of the present invention, a kind of high-speed laser Poewr control method also is provided, it comprises step: gather lathe injecting power signal; Gather laser instrument actual power signal; Lathe injecting power signal and laser instrument actual power signal are carried out analog-to-digital conversion; According to through laser machine actual power signal and lathe injecting power signal after the analog-to-digital conversion, adopt the regulated quantity of pid algorithm rated output; The laser power control signal after obtaining feeding back is regulated in regulated quantity adjusting according to power to lathe injecting power signal.During laser works, receive through laser machine actual power signal and lathe injecting power signal after the analog-to-digital conversion in real time, use pid algorithm to calculate the regulated quantity of power then; Can be placed on regulated quantity on the feedback circuit in advance; Promptly send to feedback circuit, with the above-mentioned laser power control signal of real-time generation, resulting laser power control signal promptly is the signal of the laser power of correct control laser instrument; Can realize the high-speed feedback of laser power; Laser power that like this can stable laser can respond the lathe power signal again fast, makes laser instrument provide stable laser power to cut to lathe.
Further; In the control method of the foregoing description; Regulated quantity adjusting according to power is regulated lathe injecting power signal, and the step of the laser power control signal after obtaining feeding back specifically comprises: receive the lathe injecting power signal that lathe injecting power sampling module sends; Receive the regulated quantity of the power of single chip control module transmission; Calculate the laser power control signal according to lathe injecting power signal and regulated quantity; The output laser power control signal.
Further; In the control method of the foregoing description, the step that calculates the laser power control signal according to lathe injecting power signal and regulated quantity specifically comprises: adopt the feedback circuit that comprises first operational amplifier, second operational amplifier and digital regulation resistance to calculate the laser power control signal.Wherein, As previously mentioned, see also Fig. 3, the in-phase input end of first operational amplifier 531 inserts lathe injecting power signal; The reverse input end of first operational amplifier 531 is connected with output, and the output of first operational amplifier 531 is connected with digital regulation resistance 532; Digital regulation resistance 532 is connected with regulated quantity receiving element 52, to regulate the position of tap terminals according to regulated quantity; The in-phase input end of second operational amplifier 533 connects the tap terminals of digital regulation resistance 532, and the reverse input end of second operational amplifier 533 is connected with output, and the output of second operational amplifier 533 is connected with output unit.Equally, because digital regulation resistance 532 is in series with lathe injecting power signal, the position that therefore changes digital regulation resistance 532 tap terminals just can change the power of output laser.Concrete control method sees also aforementioned each embodiment, repeats no more at this.
Further; In the control method of the foregoing description; According to through laser machine actual power signal and lathe injecting power signal after the analog-to-digital conversion, adopt the step of the regulated quantity of pid algorithm rated output specifically to comprise: to receive the lathe injecting power signal that analog-to-digital conversion module sends; Receive the laser instrument actual power signal that analog-to-digital conversion module sends; According to laser machine actual power signal and lathe injecting power signal, adopt the regulated quantity of pid algorithm rated output; The output regulated quantity.Wherein, the detailed process that adopts pid algorithm to carry out regulated quantity calculating can repeat no more at this with reference to pid algorithm of the prior art.
Further; In the control method of the foregoing description; According to through laser machine actual power signal and lathe injecting power signal after the analog-to-digital conversion, adopt the step of the regulated quantity of pid algorithm rated output also to comprise: the position of regulating the digital regulation resistance tap terminals according to regulated quantity automatically.Concrete adjustment process sees also aforementioned each embodiment, repeats no more at this.
To sum up, the regulated quantity of laser machine actual power signal after the present invention passes through to adopt single chip control module according to the process analog-to-digital conversion and lathe injecting power signal, employing pid algorithm rated output, and send to feedback circuit; Regulate according to the regulated quantity of power by feedback circuit again lathe injecting power signal is regulated; Laser power control signal after obtaining feeding back; This laser power control signal promptly is the signal of the laser power of correct control laser instrument; Laser power that like this can stable laser can respond the lathe power signal again fast, makes laser instrument provide stable laser power to cut to lathe.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (10)
1. high-speed laser output control device; It is characterized in that, comprise single chip control module, be used to gather lathe injecting power signal lathe injecting power sampling module, be used to gather laser instrument actual power signal laser instrument actual power sampling module, be used for said lathe injecting power signal and said laser instrument actual power signal are carried out analog-to-digital analog-to-digital conversion module and feedback circuit; Wherein,
Said lathe injecting power sampling module and said laser instrument actual power sampling module are electrically connected with the input of said single chip control module through said analog-to-digital conversion module respectively;
Said single chip control module is used for adopting the regulated quantity of pid algorithm rated output, and sending to said feedback circuit according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion;
Said feedback circuit is used for said lathe injecting power signal being regulated the laser power control signal after obtaining feeding back according to the regulated quantity adjusting of said power.
2. control device according to claim 1 is characterized in that, said feedback circuit comprises:
The first lathe injecting power signal receiving unit is used to receive the lathe injecting power signal that said lathe injecting power sampling module sends;
The regulated quantity receiving element is used to receive the regulated quantity of the power that said single chip control module sends;
The control signal computing unit is used for calculating said laser power control signal according to said lathe injecting power signal and said regulated quantity;
The control signal output unit is used to export said laser power control signal.
3. control device according to claim 2 is characterized in that, said control signal computing unit comprises first operational amplifier, second operational amplifier and the digital regulation resistance that is connected in series; Wherein,
The in-phase input end of said first operational amplifier inserts said lathe injecting power signal, and the reverse input end of said first operational amplifier is connected with output, and the output of said first operational amplifier is connected with said digital regulation resistance;
Said digital regulation resistance is connected with said regulated quantity receiving element, to regulate the position of tap terminals according to said regulated quantity;
The in-phase input end of said second operational amplifier connects the tap terminals of said digital regulation resistance, and the reverse input end of said second operational amplifier is connected with output, and the output of said second operational amplifier is connected with said output unit.
4. control device according to claim 3 is characterized in that, said single chip control module comprises: the second lathe injecting power signal receiving unit, laser instrument actual power signal receiving unit and regulated quantity computing unit; Wherein,
The said second lathe injecting power signal receiving unit is used to receive the lathe injecting power signal that said analog-to-digital conversion module sends;
Said laser instrument actual power signal receiving unit is used to receive the laser instrument actual power signal that said analog-to-digital conversion module sends;
Said regulated quantity computing unit is used for according to said laser machine actual power signal and said lathe injecting power signal, adopts the regulated quantity of pid algorithm rated output;
The regulated quantity output unit is used to export said regulated quantity.
5. control device according to claim 3; It is characterized in that; Said single chip control module also comprises: the tap position that is connected with said digital regulation resistance is regulated control module, is used for regulating automatically according to said regulated quantity the position of said digital regulation resistance tap terminals.
6. a high-speed laser Poewr control method is characterized in that, comprises step:
Gather lathe injecting power signal;
Gather laser instrument actual power signal;
Said lathe injecting power signal and said laser instrument actual power signal are carried out analog-to-digital conversion;
According to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion, adopt the regulated quantity of pid algorithm rated output;
The laser power control signal after obtaining feeding back is regulated in regulated quantity adjusting according to said power to said lathe injecting power signal.
7. control method according to claim 6 is characterized in that, said step is regulated according to the regulated quantity of said power said lathe injecting power signal is regulated, and the laser power control signal after obtaining feeding back specifically comprises:
Receive the lathe injecting power signal that said lathe injecting power sampling module sends;
Receive the regulated quantity of the power of said single chip control module transmission;
Calculate said laser power control signal according to said lathe injecting power signal and said regulated quantity;
Export said laser power control signal.
8. control method according to claim 7 is characterized in that, said step calculates said laser power control signal according to said lathe injecting power signal and said regulated quantity and specifically comprises:
Employing comprises that the feedback circuit of first operational amplifier, second operational amplifier and digital regulation resistance calculates said laser power control signal; Wherein,
The in-phase input end of said first operational amplifier inserts said lathe injecting power signal, and the reverse input end of said first operational amplifier is connected with output, and the output of said first operational amplifier is connected with said digital regulation resistance;
Said digital regulation resistance is connected with said regulated quantity receiving element, to regulate the position of tap terminals according to said regulated quantity;
The in-phase input end of said second operational amplifier connects the tap terminals of said digital regulation resistance, and the reverse input end of said second operational amplifier is connected with output, and the output of said second operational amplifier is connected with said output unit.
9. control method according to claim 8 is characterized in that, said step adopts the regulated quantity of pid algorithm rated output specifically to comprise according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion:
Receive the lathe injecting power signal that said analog-to-digital conversion module sends;
Receive the laser instrument actual power signal that said analog-to-digital conversion module sends;
According to said laser machine actual power signal and said lathe injecting power signal, adopt the regulated quantity of pid algorithm rated output;
Export said regulated quantity.
10. control method according to claim 9; It is characterized in that; Said step adopts the regulated quantity of pid algorithm rated output also to comprise: the position of regulating said digital regulation resistance tap terminals according to said regulated quantity automatically according to through said laser machine actual power signal and said lathe injecting power signal after the analog-to-digital conversion.
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| CN103157910A (en) * | 2013-02-04 | 2013-06-19 | 深圳市大族激光科技股份有限公司 | Method and system of displaying laser device power |
| CN106129794A (en) * | 2016-09-05 | 2016-11-16 | 吉林大学 | A kind of high stability laser beam generating circuit controlled based on PID |
| CN106207730A (en) * | 2016-09-05 | 2016-12-07 | 吉林大学 | A kind of high stability laser pumping source with overheat protection function |
| CN109507874A (en) * | 2018-12-21 | 2019-03-22 | 哈尔滨工程大学 | A method of improving Er-Doped superfluorescent fiber source power stability |
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| CN102079016A (en) * | 2009-11-27 | 2011-06-01 | 深圳市大族激光科技股份有限公司 | Laser power control method and laser cutting device |
| CN102033507A (en) * | 2010-12-16 | 2011-04-27 | 上海理工大学 | Control device of grating ruling machine |
| CN102193519A (en) * | 2011-04-12 | 2011-09-21 | 广东大族粤铭激光科技股份有限公司 | Laser power control method and system |
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| CN103157910A (en) * | 2013-02-04 | 2013-06-19 | 深圳市大族激光科技股份有限公司 | Method and system of displaying laser device power |
| CN103157910B (en) * | 2013-02-04 | 2016-06-29 | 大族激光科技产业集团股份有限公司 | The method and system of display laser power |
| CN106129794A (en) * | 2016-09-05 | 2016-11-16 | 吉林大学 | A kind of high stability laser beam generating circuit controlled based on PID |
| CN106207730A (en) * | 2016-09-05 | 2016-12-07 | 吉林大学 | A kind of high stability laser pumping source with overheat protection function |
| CN106129794B (en) * | 2016-09-05 | 2019-03-19 | 吉林大学 | A kind of high stability laser beam generating circuit based on PID control |
| CN106207730B (en) * | 2016-09-05 | 2019-04-05 | 吉林大学 | A kind of high stability laser pumping source with overheat protection function |
| CN109507874A (en) * | 2018-12-21 | 2019-03-22 | 哈尔滨工程大学 | A method of improving Er-Doped superfluorescent fiber source power stability |
| CN109507874B (en) * | 2018-12-21 | 2022-03-18 | 哈尔滨工程大学 | Method for improving power stability of erbium-doped fiber light source |
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| CN102554478B (en) | 2014-10-08 |
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