CN102607700A - Device for scanning and acquiring plane dynamic arc spectrum in real time - Google Patents
Device for scanning and acquiring plane dynamic arc spectrum in real time Download PDFInfo
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- CN102607700A CN102607700A CN2012100564039A CN201210056403A CN102607700A CN 102607700 A CN102607700 A CN 102607700A CN 2012100564039 A CN2012100564039 A CN 2012100564039A CN 201210056403 A CN201210056403 A CN 201210056403A CN 102607700 A CN102607700 A CN 102607700A
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Abstract
The invention discloses a device for scanning and acquiring a plane dynamic arc spectrum in real time. The device comprises an arc output power supply, an arc current acquiring sensor, a spectrometer, a two-dimensional mobile platform, a motion control board card, a spectrometer hardware trigger circuit, a stepper motor driver and a computer, wherein current output by the arc output power supply is output to the spectrometer hardware trigger circuit through the arc current acquiring sensor; a drive signal of a stepper motor is output by the motion control board card to drive an optical probe fixed on the two-dimensional mobile platform to move in a two-dimensional plane; meanwhile, in the operation process, a motion or stop state pulse signal is input to the hardware trigger circuit by the motion control board card; and a trigger pulse signal is output by the hardware trigger circuit through carrying out identification, judgment and state selection on the current. According to the device, the plane dynamic arc spectrum is synchronously scanned and acquired in real time, a motor is guaranteed to continuously scan an arc plane, and arc spectrum signals at corresponding positions in corresponding states are acquired by the spectrometer in a stop state.
Description
Technical field
The present invention relates to electronic surveying and control field, particularly a kind of plane dynamic arc spectrum synchronous real-time scanning collection device.
Background technology
The heat input of dripping of dissolving of the temperature of plasma and composition influence metal transfer and metal is studied, so be a worth process of optimizing.Spectroscopic methodology is a kind of Measurement and analysis method to plasma resonance; Its principle is to be spectral signal by spectral instrument with the arc radiation signal decomposition, and the rules such as relation according to spectral intensity and arc-plasma internal temperature, particle concentration, composition reflect electric arc internal physical state and process thereof again.Document [1] is through the electron temperature of arc spectrum calculating electric arc, and its Changing Pattern is corresponding with the weld pool surface signal, finds the defect characteristic of the fine corresponding face of weld of spectral signal ability.Document [2] is studied TIG welding process arc process through the spectral information analysis.Document [3,4] has obtained temperature field, electron density and the metal concentration space distribution of MIG welding process through the analysis of spectral information.
Measuring a kind of method for electric arc at present is directly to regard electric arc as pointolite, for example document [1,5].But regard whole electric arc as physical parameter that an integral body is analyzed electric arc; This method can only obtain a parameter of spectrum macroscopic view; Can't obtain the physical message of spectral space and time domain; Only be used for the quality testing of plasma welding termination process at present, can not be used for the Changing Pattern of computational analysis arc space and time physical parameter.
Second method is to use the spectrometer of band slit; This spectrometer can obtain the plasma light spectrum information on a plane; Document [3,4] is exactly to adopt this spectrometer, but this spectrometer costs an arm and a leg; Once can only obtain simultaneously the spectral information on a plane, can only analyze to a certain state of electric arc.For the multidate information of time-domain spectroscopy, especially can not carry out split hairs for the complicated electric arc that has electric arc peak value, matrix, negative current state.
Document [2] is the design synchronous trigger circuit when research TIG striking; But what when the design trigger circuit, adopt is that supply voltage output signal is as the judgement source; The collection of voltage signal is owing to be to introduce undesired signal easily in the output terminal sampling; Simultaneously the author only is to starting the arc signal Synchronization, but arc signal comprises also such as complex state authors such as peak state, base value state, negative currents and not relating to that the author does not make analysis to spatial information in addition.
In the scientific research analytic process; We not only need obtain the spatial information of arc spectrum, and need obtain the time-domain information of electric arc at different power supply states when analyzing extraction electric arc information; And need and between different conditions, to switch; In order to reduce the systematic error of whole measuring process, our expectation can be obtained the multidate information of arc spectrum at short notice, can realize dynamic scan simultaneously.
List of references:
1.?Alfaro,?S.C.A.,?D.?de?S.?Medonga,?and?M.S.?Matos,?
Emission?spectrometry?evaluation?in?arc?welding?monitoring?system.?Journal?of?Materials?Processing?Technology,?2006.?
179(1-3):p.2-9-224。
2. the fine strain of millet show is beautiful,
TIG weldering arc process research based on spectroscopic diagnostics. 2007, Tianjin: University Of Tianjin.
3.?Zielińska,?S.,?et?al.,?
Investigations?of?GMAW?plasma?by?optical?emission?spectroscopy.?Plasma?Sources?Science?and?Technology,?2007.?
16:p.832。
4.?Rouffet,?M.,?et?al.,?
Spectroscopic?investigation?of?the?high-current?phase?of?a?pulsed?GMAW?process.?Journal?of?Physics?D:?Applied?Physics,2010.?43:p.434003。
5. Liu Gang, "
MIG weldering arc spectrum signals of droplet spray transfer .pdf". welding journal, 2004.25.
Summary of the invention
Requirement to present arc space and time domain multidate information scanning extraction; The present invention provides a kind of plane dynamic arc spectrum synchronous real-time scanning collection device, extracts different spatial, different power supply state and different spectral informations constantly to guarantee moment.
Technical solution of the present invention is following:
A kind of plane dynamic arc spectrum synchronous real-time scanning collection device; Characteristics are that its formation comprises electric arc out-put supply, flame current pick-up transducers, spectrometer, two-dimentional mobile platform, motion control integrated circuit board, spectrometer hardware trigger circuit, stepper motor driver and computing machine, and the annexation of above-mentioned parts is following:
One end of described electric arc out-put supply links to each other with sparking electrode; The other end links to each other through the described flame current pick-up transducers object relative with described sparking electrode; The first input end of the described spectrometer hardware trigger of the output termination circuit of this flame current pick-up transducers; The described motion control integrated circuit board of the second input termination of this spectrometer hardware trigger circuit; The output terminal of this spectrometer hardware trigger circuit links to each other with described spectrometer input end; The fibre-optical probe of this spectrometer is fixed on the described two-dimentional mobile platform, the described input end and computer of output termination of this spectrometer, and described motion control integrated circuit board links to each other to motion motor with Y to motion motor with the Z of described two-dimentional mobile platform through described stepper motor driver.
Described electric arc out-put supply output flame current signal converts 0 ~ 4V voltage signal into through described flame current pick-up transducers and exports described spectrometer hardware trigger circuit first input end to;
Described motion control integrated circuit board is to described stepper motor driver output drive signal; Drive described Z to stepper motor and Y step motion to stepper motor; The fibre-optical probe that drives described two-dimentional mobile platform and spectrometer thereof is in the scanning of YZ two dimensional in-plane moving, and described motion control integrated circuit board is to the motion state pulse signal of described spectrometer hardware trigger circuit second input end input optical fibre probe.
Described spectrometer hardware trigger circuit is judged the voltage signal of described flame current pick-up transducers and is discerned the flame current state; With from the motion state pulse signal of the fibre-optical probe of the spectrometer of described motion control integrated circuit board through behind the logic and operation; To described spectrometer input start pulse signal, the fibre-optical probe of the described spectrometer of synchronous triggering is realized the collection of plane dynamic arc spectrum.Motion motor drives fibre-optical probe and is operated in continuous motion or halted state in the arc spectrum gatherer process; Guarantee that Y drives electric arc plane of fibre-optical probe continuous sweep to stepper motor and Z to stepper motor, and described spectrometer is gathered the arc spectrum signal of correspondence position and corresponding states and is inputed to described computing machine when halted state.
Described spectrometer hardware trigger circuit comprises voltage amplifier circuit, voltage comparator circuit, monostable circuit, selected on-off circuit, OR circuit and AND circuit;
From the voltage signal of described flame current pick-up transducers through described voltage amplifier circuit send out big to-15V ~+the 15V scope; Be divided into peak state, base value state and negative state through described voltage comparator circuit; These three kinds of states are through the monostable pulse of three kinds of states of described monostable circuit output; Described selected on-off circuit is given described OR circuit with these three kinds of state break-makes; The motion state pulse signal of the fibre-optical probe of the flame current status signal of this OR circuit output and the output of described motion control card is given described spectrometer through described AND circuit output start pulse signal.
Described two-dimentional mobile platform comprises Z to motion guide rail, and Z is to stepper motor, and Y is to motion guide rail, and Y is to stepper motor and fibre-optical probe fixed mount; Described Y links to each other to motion guide rail with Y through the first roller bearing leading screw to stepper motor, and described Z is fixed on Y on motion guide rail to motion guide rail, and described Z links to each other to motion guide rail with Z through the second roller bearing leading screw to stepper motor; Described fibre-optical probe fixed mount links to each other to motion guide rail with described Z.
In described Y described motion control integrated circuit board output low level when stepper motor is kept in motion,, be used to trigger spectrometer at described Y this motion control integrated circuit board output high level when stepper motor is in halted state.
Compared with prior art; The invention has the beneficial effects as follows and utilize the flame current pick-up transducers to obtain the electric arc power supply state; Utilize stepper motor to drive the spectrometer fibre-optical probe and carry out spacescan; Utilize logic judging circuit to realize the hardware trigger of spectrometer; No matter guarantee that at electric arc be peak state (EP), base value state (EB), still negative current state (EN), the start pulse signal that spectrometer hardware trigger circuit can both send automatically obtains the corresponding spectral information in this position when motor stops; Thereby guarantee in whole electric arc plane, can real-time and dynamic obtain two-dimension spectrum information, reach the purpose of moment extraction different spatial, different power supply state and the spectral informations in the different moment.
Description of drawings
Fig. 1 is the structural representation of plane of the present invention dynamic arc spectrum synchronous real-time scanister.
Fig. 2 is a spectrometer hardware trigger pulse signal logic timing figure.
Fig. 3 is a spectrometer hardware trigger circuit block diagram.
Embodiment
In order to introduce the present invention in further detail, carry out detailed explanation below in conjunction with accompanying drawing and embodiment.
Please consult Fig. 1 earlier; Fig. 1 is the structural representation of plane of the present invention dynamic arc spectrum synchronous real-time scanister; As shown in the figure; A kind of plane dynamic arc spectrum synchronous real-time scanning collection device, its formation comprises electric arc out-put supply 1, flame current pick-up transducers 2, spectrometer 3, two-dimentional mobile platform 4, motion control integrated circuit board 5, spectrometer hardware trigger circuit 6, stepper motor driver 7 and computing machine 8, the annexation of above-mentioned parts is following:
One end of described electric arc out-put supply 1 links to each other with sparking electrode; The other end links to each other through described flame current pick-up transducers 2 object relative with described sparking electrode; The first input end of the described spectrometer hardware trigger of the output termination circuit 6 of this flame current pick-up transducers 2; The described motion control integrated circuit board 5 of the second input termination of this spectrometer hardware trigger circuit 6; The output terminal of this spectrometer hardware trigger circuit 6 links to each other with described spectrometer 3 input ends; The fibre-optical probe of this spectrometer 3 is fixed on the described two-dimentional mobile platform 4, the input end of the described computing machine 8 of output termination of this spectrometer 3, and described motion control integrated circuit board 5 links to each other to motion motor with Y to motion motor with the Z of described two-dimentional mobile platform 4 through described stepper motor driver 7.
Described electric arc out-put supply 1 output flame current signal converts 0 ~ 4V voltage signal into through described flame current pick-up transducers 2 and exports described spectrometer hardware trigger circuit 6 first input ends to.
Described motion control integrated circuit board 5 is to described stepper motor driver 7 output drive signals; Drive described Z to stepper motor and Y to the stepper motor step motion; The fibre-optical probe that drives described two-dimentional mobile platform 4 and spectrometer 3 thereof is in the scanning of YZ two dimensional in-plane moving, and described motion control integrated circuit board 5 is to the motion state pulse signal of described spectrometer hardware trigger circuit 6 second input end input optical fibres probe.
The voltage signal of 6 pairs of described flame current pick-up transducers 2 of described spectrometer hardware trigger circuit is judged and is discerned the flame current state; With from the motion state pulse signal of the fibre-optical probe of the spectrometer 3 of described motion control integrated circuit board 5 through behind the logic and operation; To described spectrometer 3 input start pulse signals, the fibre-optical probe of the described spectrometer 3 of synchronous triggering is realized the collection of plane dynamic arc spectrum; Motion motor drives fibre-optical probe and is operated in continuous motion halted state in the arc spectrum gatherer process; Guarantee electric arc plane of motor continuous sweep, and described spectrometer 3 is gathered the arc spectrum signal of correspondence position and corresponding states and is inputed to described computing machine 8 when halted state.
Fig. 2 is a spectrometer hardware trigger pulse signal logic timing figure; As shown in the figure; The logical sequence of system does; The voltage signal that flame current pick-up transducers 2 obtains obtains corresponding peaks state, base value state and negative current state through voltage comparator circuit, and three kinds of state pulses can form the current impulse status signal through a logical OR computing.
Y on two-dimentional mobile platform 4 is when stepper motor is in halted state; Motion control integrated circuit board 5 is to the high level signal of spectrometer hardware trigger circuit 6 second input end input optical fibre probe movement status signals; This high level pulse signal and described current status pulse signal through a logic and operation after, to the high signal of spectrometer 3 input trigger pulses.
At Y when stepper motor is kept in motion; Motion control integrated circuit board 5 is to the low level signal of spectrometer hardware trigger circuit 6 second input end input optical fibre probe movement status signals; This low level pulse signal and described current status pulse signal through a logic and operation after, to spectrometer 3 input trigger pulse low signals.
Fig. 3 is spectrometer hardware trigger circuit block diagram, and is as shown in the figure, and spectrometer hardware trigger circuit 6 comprises voltage amplifier circuit 61, voltage comparator circuit 62, monostable circuit 63, selected on-off circuit 64, OR circuit 65, AND circuit 66.
Its principle is: from the voltage signal of current sensor 2 through voltage amplifier circuit 61 be amplified to-15V ~+the 15V scope; Be divided into peak state, base value state, negative state through voltage comparator circuit 62; Three kinds of monostable pulses that state is exported three kinds of states through monostable circuit 63; Selected on-off circuit 64 is given OR circuit 65 with three kinds of state break-makes, and the motion state pulse signal of the output of OR circuit 65 and motion control card 5 outputs is through AND circuit 66 final output start pulse signals.
Above only the act with convenient explanation the present invention in not breaking away from initiative spirit category of the present invention, anyly known this technological any covert modification and distortion that the technician did, still belongs to protection category of the present invention.
Claims (4)
1. plane dynamic arc spectrum synchronous real-time scanning collection device; Be characterised in that its formation comprises electric arc out-put supply (1), flame current pick-up transducers (2), spectrometer (3), two-dimentional mobile platform (4), motion control integrated circuit board (5), spectrometer hardware trigger circuit (6), stepper motor driver (7) and computing machine (8), the annexation of above-mentioned parts is following:
One end of described electric arc out-put supply (1) links to each other with sparking electrode; The other end links to each other through described flame current pick-up transducers (2) object relative with described sparking electrode; The first input end of the described spectrometer hardware trigger of the output termination circuit (6) of this flame current pick-up transducers (2); The second input described motion control integrated circuit board of termination (5) of this spectrometer hardware trigger circuit (6); The output terminal of this spectrometer hardware trigger circuit (6) links to each other with described spectrometer (3) input end; The fibre-optical probe of this spectrometer (3) is fixed on the described two-dimentional mobile platform (4); The input end of the described computing machine of output termination (8) of this spectrometer (3), described motion control integrated circuit board (5) links to each other to motion motor with Y to motion motor through the Z of described stepper motor driver (7) with described two-dimentional mobile platform (4);
Described electric arc out-put supply (1) output flame current signal converts 0 ~ 4V voltage signal into through described flame current pick-up transducers (2) and exports described spectrometer hardware trigger circuit (6) first input end to;
Described motion control integrated circuit board (5) is to described stepper motor driver (7) output drive signal; Drive described Z to stepper motor and Y to the stepper motor step motion; The fibre-optical probe that drives described two-dimentional mobile platform (4) and spectrometer (3) thereof is in the scanning of YZ two dimensional in-plane moving, and described motion control integrated circuit board (5) is to the motion state pulse signal of described spectrometer hardware trigger circuit (6) second input end input optical fibres probe;
Described spectrometer hardware trigger circuit (6) is judged the piezoelectric voltage signal of described flame current pick-up transducers (2) and is discerned the flame current state; With from the motion state pulse signal of the fibre-optical probe of the spectrometer (3) of described motion control integrated circuit board (5) through behind the logic and operation; To described spectrometer (3) input start pulse signal, the fibre-optical probe of the described spectrometer of synchronous triggering (3) is realized the collection of plane dynamic arc spectrum; Guarantee electric arc plane of motor continuous sweep, and described spectrometer (3) is gathered the arc spectrum signal of correspondence position and corresponding states and is inputed to described computing machine (8) when halted state.
2. plane according to claim 1 dynamic arc spectrum synchronous real-time scanning collection device; It is characterized in that described spectrometer hardware trigger circuit (6) comprises voltage amplifier circuit (61), voltage comparator circuit (62), monostable circuit (63), selected on-off circuit (64), OR circuit (65) and AND circuit (66);
From the voltage signal of described flame current pick-up transducers (2) through described voltage amplifier circuit (61) be amplified to-15V ~+the 15V scope; Be divided into peak state, base value state and negative state through described voltage comparator circuit (62); These three kinds of states are through the monostable pulse of three kinds of states of described monostable circuit (63) output; Described selected on-off circuit (64) is given described OR circuit (65) with these three kinds of state break-makes; The motion state pulse signal of the fibre-optical probe of the flame current state pulse signal of this OR circuit (65) output and described motion control card (5) output is given described spectrometer (3) through described AND circuit (66) output start pulse signal.
3. plane according to claim 1 dynamic arc spectrum synchronous real-time scanning collection device; It is characterized in that described two-dimentional mobile platform (4) comprises Z to motion guide rail, Z is to stepper motor; Y is to motion guide rail, and Y is to stepper motor and fibre-optical probe fixed mount; Described Y links to each other to motion guide rail with Y through the first roller bearing leading screw to stepper motor, and described Z is fixed on Y on motion guide rail to motion guide rail, and described Z links to each other to motion guide rail with Z through the second roller bearing leading screw to stepper motor; Described fibre-optical probe fixed mount links to each other to motion guide rail with described Z.
4. plane according to claim 3 dynamic arc spectrum synchronous real-time scanning collection device; It is characterized in that; In described Y described motion control integrated circuit board (5) output low level when stepper motor is kept in motion, at described Y this motion control integrated circuit board (5) output high level when stepper motor is in halted state.
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| CN106568505A (en) * | 2016-11-03 | 2017-04-19 | 上海交通大学 | Arc spectrum synchronous real-time scanning linear multichannel acquisition device |
| CN106568506A (en) * | 2016-11-03 | 2017-04-19 | 上海交通大学 | Synchronous real-time scanning linear multichannel acquisition method for arc spectrum |
| CN107064753A (en) * | 2017-03-23 | 2017-08-18 | 西南交通大学 | Bow net arc-plasma Multi-parameter Data Acquisition method and apparatus |
| CN109014499A (en) * | 2018-09-25 | 2018-12-18 | 北京航空航天大学 | A kind of method and apparatus measuring WELDING ARC SPECTRUM spatial information (si) |
| CN109765191A (en) * | 2019-01-18 | 2019-05-17 | 中国矿业大学 | A kind of movement coal petrography parallel-moving type tracking EO-1 hyperion identification device |
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| CN103235186A (en) * | 2013-04-25 | 2013-08-07 | 国家电网公司 | Method and system for measuring arc impedance by using spectrum |
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| CN105891769A (en) * | 2016-06-21 | 2016-08-24 | 北京航空航天大学 | Method and device for calibrating eclectic arc discharge energy correction factor |
| CN105891769B (en) * | 2016-06-21 | 2018-09-04 | 北京航空航天大学 | A kind of arc discharge energy correction factor calibration method and calibrating installation |
| CN106568505A (en) * | 2016-11-03 | 2017-04-19 | 上海交通大学 | Arc spectrum synchronous real-time scanning linear multichannel acquisition device |
| CN106568506A (en) * | 2016-11-03 | 2017-04-19 | 上海交通大学 | Synchronous real-time scanning linear multichannel acquisition method for arc spectrum |
| CN106568505B (en) * | 2016-11-03 | 2018-12-25 | 上海交通大学 | A kind of arc spectrum synchronization real time scan Linear Multi-channel acquisition device |
| CN106568506B (en) * | 2016-11-03 | 2019-03-12 | 上海交通大学 | A kind of arc spectrum synchronization real time scan Linear Multi-channel acquisition method |
| CN107064753A (en) * | 2017-03-23 | 2017-08-18 | 西南交通大学 | Bow net arc-plasma Multi-parameter Data Acquisition method and apparatus |
| CN109014499A (en) * | 2018-09-25 | 2018-12-18 | 北京航空航天大学 | A kind of method and apparatus measuring WELDING ARC SPECTRUM spatial information (si) |
| CN109765191A (en) * | 2019-01-18 | 2019-05-17 | 中国矿业大学 | A kind of movement coal petrography parallel-moving type tracking EO-1 hyperion identification device |
| CN109765191B (en) * | 2019-01-18 | 2023-11-10 | 中国矿业大学 | Motion coal rock translation type tracking hyperspectral identification device |
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