CN101738257B - System for detecting micro-beam plasma arc three-dimensional dynamic spectrum - Google Patents
System for detecting micro-beam plasma arc three-dimensional dynamic spectrum Download PDFInfo
- Publication number
- CN101738257B CN101738257B CN2010101012309A CN201010101230A CN101738257B CN 101738257 B CN101738257 B CN 101738257B CN 2010101012309 A CN2010101012309 A CN 2010101012309A CN 201010101230 A CN201010101230 A CN 201010101230A CN 101738257 B CN101738257 B CN 101738257B
- Authority
- CN
- China
- Prior art keywords
- dimensional
- object lens
- plasma arc
- lens
- beam plasma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Plasma Technology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a system for detecting a micro-beam plasma arc three-dimensional dynamic spectrum and relates to the technical field of spectrum detection. The system comprises a three-dimensional precision inching platform (11), a light path system, a light path system fixing device (10), a spectrum collecting control system and a data line (9). The three-dimensional precision inching platform (11) comprises a stepping motor which can realize the stepping motion on X,Y and Z three-dimensional directions, a screw rod mechanism and a base. The light path system comprises a detecting lens (7), an optical fiber (1) and a spectrometer (8), wherein two ends of the optical fiber (1) are respectively connected with the detecting lens (7) and the spectrometer (8). The spectrum collecting control system comprises a spectrum collecting software (12), a stepping motor controller (14) and a computer (13). The stepping motor controller (14) and the spectrometer (8) are connected with the computer (13) by the data line (9). The system of the invention can identify and collect the spectrum information on the periphery and the interior point of the arc and the precision is 10 microns.
Description
Technical field
The present invention relates to the spectrum detection technique field, specifically refer to a kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum.
Background technology
Micro-beam plasma arc mainly is through forming after machinery, heat and three kinds of compressions of electromagnetism behind the gas ionizations such as helium or argon gas.Characteristics such as micro-plasma arc welding is a kind of plasma arc welding of little electric current, and its arc heated workpiece has the arc temperature height, and energy density is concentrated, and the arc column straightness is good, and arc stability is good.
Contain abundant spectral information in the welding arc, it is the source that enriches of understanding welding physical process, is control welding physical process, realizes the key element in advance of Automation of Welding, is the emerging signal source behind the relay arc electric signal.Welding arc test and test to general environment are had a great difference, and at first, arc temperature is high, is difficult to directly measure, and generally can only measure indirectly.Secondly, factors such as power-supply fluctuation, variations in flow make the various measured time variations that exist in the electric arc to the disturbance of electric arc, and this time-varying speed is often very big, has randomness.The 3rd, arc space is little but thermograde is big, and various particle compositions are very inhomogeneous in space distribution.The 4th; The residing temperature range of electric arc is generally 5000～30000K, is a kind of partially ionized low temperature plasma, and electronics, ion are not only arranged in its particle; Also have atom and molecule; And usually be that ion, atom and the molecule of multiple element exists simultaneously, the particle composition is very complicated, is considered to the most difficult temperature section of surveying.Test brings very big inconvenience to welding arc for all these, and spectroscopic methodology has very big superiority to overcoming these difficulties.
The technical foundation of utilizing spectral information to detect welding arc is by spectrometer the arclight radiolysis to be spectrum; Select characteristic spectral line; Rely on spectral intensity to reflect again and measure electric arc internal physical state and process with the relation of arc-plasma temperature inside, particle concentration and the factor that becomes to grade; Then the result who is surveyed is fed back to control system in real time as control signal, arc process is controlled.
Yet at present the spectral detection to electric arc only is limited to the light surround spectrum signal to electric arc, and its detection system can't be distinguished and detects the spectral signal of electric arc inside.Therefore, the spectral signal of being surveyed has serious deviation with the spectral signal of the electric arc of reality, also just can not be for further arc process control and research provide reliable data.
Literature search through to prior art finds that Li Junyue has delivered the paper that is entitled as " WELDING ARC SPECTRUM information observation and control technology and application thereof " in the 3rd the 6th phase of volume of " Chinese engineering science " June calendar year 2001.The current arc spectrum pick-up unit principle of mentioning in the literary composition (shown in accompanying drawing 1), the light of electric arc reflexes to convex lens through tilting mirror and becomes directional light through behind the diaphragm, after fiber optic conduction, arrives spectrometer.The light that arrives spectrometer arrives photoelectric sensor and becomes electric signal after beam split, imports computer at last into.Can find out that this device can only detect the inner each point of the electric arc peripheral total spectral signal of electric arc that is added to, and can't discern and gather the spectral signal of electric arc internal point.
Summary of the invention
Content of the present invention is to overcome the not enough and disappearance of prior art; A kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum is provided; Through the burnt technology of copolymerization; Make it discern and to gather, be implemented under the situation of aggressive plasma, more exactly the three-dimensional light spectral property of micro-beam plasma arc is caught the spectral signal in micro-beam plasma arc three-dimensional space.
Technical scheme of the present invention comprises: piezoid, optical fiber, spectrometer and the data line of three-dimensional precise jiggle platform, spectra collection software, controllor for step-by-step motor, computer, support, governor motion, outer cover, object lens, band pin hole.Wherein, but three-dimensional precise jiggle platform form by stepper motor, screw rod mechanism mechanism and the base of implementation space X, Y and Z three-dimensional step motion; Spectra collection software, control box and computer are formed the spectra collection control system; Support, governor motion and outer cover are formed the light path system stationary installation; The piezoid of two object lens, band pin hole is formed detector lens, and detector lens is installed on the three-dimensional precise jiggle platform.The detector lens foremost is two object lens, two object lens one in front and one in back, camera lens is oppositely rack-mount.The piezoid of one band pin hole is installed behind two object lens, thereafter, optical fiber is installed.The center of center and object lens that guarantees piezoid, optical fiber with pin hole is on same straight line, to guarantee having highlight flux to pass through light path system, with the error that reduces to measure.Special construction by detector lens is the core of the burnt technology of copolymerization, also is core of the present invention.Detector lens, optical fiber and spectrometer are formed the light path system of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum.One end joint detection camera lens of optical fiber, the other end connects spectrometer.Spectrometer is connected with computer through USB interface through data line, supplies power with the transmission of realization photosignal with to spectrometer.The stepper motor of X, Y and three direction step motions of Z on the three-dimensional precise jiggle platform, also respectively with controllor for step-by-step motor on X, three interfaces of Y and Z be connected through data line, to realize stepping control to motor.Controllor for step-by-step motor in the spectra collection control system is connected with PC through USB interface through data line.The operating system version that spectra collection software is suitable for can be Windows XP or Windows2000.
Described three-dimensional precise jiggle platform, its base is fixed, and detector lens is installed on it, but and the step motion of implementation space X, Y and three directions of Z, to realize the 3-D scanning of detector lens to micro-beam plasma arc.
Described spectra collection software mainly has spectroscopic data and handles, gathers and control, functions such as print processing.It specifically provides single to adopt spectrum, adopts spectrum continuously, and timing automatic is adopted spectrum and triggered and adopt the spectrum function automatically.Can set after spectral signal is higher than a threshold value by the user, adopt the spectrum record automatically.Interface function and example procedure are provided, make things convenient for user's secondary development.
The present invention is through oppositely install two object lens in detector lens foremost; The unique texture of pin hole piezoid is installed is thereafter again formed a confocal optical system, cooperate three-dimensional precise jiggle platform and spectra collection control system to form a three-dimensional dynamic spectrum detection system again.This system can detect the three-dimensional spectrum of micro-beam plasma arc, can discern and gather the spectral information of electric arc periphery and internal point, and its accuracy of identification is 10 μ m.
The present invention is through oppositely install two object lens in detector lens foremost; Again install in the confocal optical system that the unique texture of pin hole piezoid forms thereafter; The distance of two object lens; The distance of the distance of object lens to electric arc and pin hole to the second object lens all can be carried out suitable adjustment through the object lens that mate different size according to actual needs foremost.And it is adjusted pin hole and the object lens of different size that the accuracy of identification of arc spectrum also can be through mating different apertures.
Description of drawings
Fig. 1 carries out the structure principle chart of spectra collection for prior art;
Fig. 2 is one of synoptic diagram of the embodiment of the invention;
Fig. 3 be the embodiment of the invention synoptic diagram two.
Label declaration among the figure
1. optical fiber; 2. be with the pin hole piezoid; 3. object lens one; 4. object lens two; 5. electric arc; 6. electric arc; 7. detector lens; 8. spectrometer; 9. data line; 10. light path system stationary installation; 11. three-dimensional precise jiggle platform; 12. spectra collection software; 13. computer; 14. controllor for step-by-step motor.
A. fibre diameter; B. the distance of object lens one to pin hole; C. the numerical aperture of object lens one; D. the distance of object lens one and object lens two; E. the numerical aperture of object lens two; F. the distance of object lens two to electric arc.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
A kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum of the present invention (like accompanying drawing 1 with shown in the accompanying drawing 3), it comprises three-dimensional precise jiggle platform 11, light path system and light path system stationary installation 10, spectra collection control system and data line 9.
But described three-dimensional precise jiggle platform 11 is made up of stepper motor, screw rod mechanism mechanism and the base of implementation space X, Y and Z three-dimensional step motion.
Described light path system comprises detector lens 7, optical fiber 1 and spectrometer 8; Optical fiber 1 two ends are connected with spectrometer 8 with detector lens 7 respectively.
Described detector lens 7 is installed on the three-dimensional precise jiggle platform 11; Detector lens 7 is made up of the piezoid 2 of object lens 1, object lens 24 and band pin hole;
Described object lens 1 and object lens 24; One in front and one in back; Camera lens oppositely is installed on the support of light path system stationary installation 10; Behind object lens 1 and object lens 24, the piezoid 2 and optical fiber 1 of a band pin hole are installed successively, and the center of center and object lens 1 and object lens 24 of piezoid 2, optical fiber 1 that makes the band pin hole is on same straight line.
Described light path system stationary installation 10 is made up of adjustment structure, protective cover and support.
System for detecting micro-beam plasma arc three-dimensional dynamic spectrum of the present invention, wherein said spectra collection control system is made up of spectra collection software 12, controllor for step-by-step motor 14 and computer 13; The controllor for step-by-step motor 14 of spectra collection control system is connected with computer 13 through USB interface through data line 9.
Described spectrometer 8 is connected with computer 13 through USB interface through data line 9, with the transmission of realization photosignal with to spectrometer 8 power supplies; On the three-dimensional precise jiggle platform 11 stepper motor of X, Y and Z three-dimensional step motion through data line 9 respectively with controllor for step-by-step motor 14 on X, three interfaces of Y and Z is connected, the stepping of motor is controlled realizing; Controllor for step-by-step motor 14 is connected with computer 13 through USB interface through data line 9.
System for detecting micro-beam plasma arc three-dimensional dynamic spectrum of the present invention; Wherein, When carrying out spectral detection, the maximum distance of object lens 24 to micro-beam plasma arc 6 can not surpass one of which times focal length, and detector lens 7 is made X, Y in micro-beam plasma arc 6 peripheries and the three-dimensional stepping of Z is moved.
The structure of the embodiment of the invention (shown in accompanying drawing 3), its installation is with to be connected each equipment following:
At first; Three-dimensional precise jiggle platform is fixed to suitable position, afterwards detector lens 7 is installed on the three-dimensional precise jiggle platform 11, then open the outer cover of detector lens; Through the adjustment of reverse light source with guarantee optical fiber 1; Band pin hole piezoid 2, object lens 1, the center of object lens 24 is basically on same axis.Then, through optical fiber 1 detector lens and spectrometer 8 are communicated with.Afterwards, connect spectrometer 8 and computer 13 through data line 9, controllor for step-by-step motor 14 and computer 13 and controllor for step-by-step motor and three-dimensional precise jiggle platform 11.
Open computer; Start controllor for step-by-step motor 14; Open spectra collection software 12 afterwards,, detect spectrometer 8 and the situation that is connected of controllor for step-by-step motor 14 and computer 13 and the working condition of the stepper motor on the three-dimensional precise jiggle platform 11 through the spectra collection software interface.Do not detect above equipment like spectra collection software, perhaps stepper motor can't be worked and then need be checked the connection situation, guarantees the connection of equipment.
Then,, comprise the collection starting point and the final position of X, Y and three directions of Z, gather step-length, acquisition mode (single is adopted spectrum, adopts spectrum continuously) etc. through spectra collection software 12 layout setting acquisition parameters.
At last, open micro-plasma welding equipment, treat arc stability after, click the start button on the spectra collection software 12, carry out the spectra collection of electric arc.System for detecting micro-beam plasma arc three-dimensional dynamic spectrum is built completion.
The present invention can detect the three-dimensional spectrum of micro-beam plasma arc, and promptly this system can discern and gather the spectral information of electric arc internal point, and its accuracy of identification is 10 μ m.Overcome in the past arc spectrum detection system effectively and can only detect the inner each point of the electric arc peripheral total spectral signal of electric arc that is added to; And the shortcoming that can't discern and gather the spectral signal of electric arc internal point; Realized under the situation of aggressive plasma; The function of more exactly the three-dimensional light spectral property of micro-beam plasma arc being caught is for the arc characteristic of further studying micro-beam plasma arc provides condition.
Claims (5)
1. a system for detecting micro-beam plasma arc three-dimensional dynamic spectrum is characterized in that, comprises three-dimensional precise jiggle platform (11), light path system, light path system stationary installation (10), spectra collection control system and data line (9);
Described light path system comprises detector lens (7), optical fiber (1) and spectrometer (8); Optical fiber (1) two ends are connected with spectrometer (8) with detector lens (7) respectively;
Described detector lens (7) is installed on the three-dimensional precise jiggle platform (11); Detector lens (7) is made up of the piezoid (2) of object lens one (3), object lens two (4) and band pin hole; Object lens one (3) and object lens two (4), one in front and one in back, camera lens oppositely is installed on the support of light path system stationary installation (10); Behind object lens one (3) and object lens two (4), piezoid (2) and the optical fiber (1) of a band pin hole are installed successively, and the center of center and object lens one (3) and object lens two (4) that makes the piezoid (2) of being with pin hole, optical fiber (1) is on same straight line;
Described light path system stationary installation (10) is made up of adjustment structure, protective cover and support.
2. a kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum as claimed in claim 1; It is characterized in that, described three-dimensional precise jiggle platform (11) but form by stepper motor, screw rod mechanism mechanism and the base of implementation space X, Y and Z three-dimensional step motion.
3. a kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum as claimed in claim 1 is characterized in that, described spectra collection control system is made up of spectra collection software (12), controllor for step-by-step motor (14) and computer (13); The controllor for step-by-step motor of spectra collection control system (14) is connected with computer (13) through USB interface through data line (9).
4. a kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum as claimed in claim 1 is characterized in that, the photosignal transmission and the power supply of described spectrometer (8) are connected with computer (13) through USB interface through data line (9); The stepper motor data line (9) that three-dimensional precise jiggle platform (11) is gone up X, Y and Z three-dimensional step motion respectively with controllor for step-by-step motor (14) on X, three interfaces of Y and Z be connected; Controllor for step-by-step motor (14) is connected with computer (13) through USB interface through data line (9).
5. a kind of system for detecting micro-beam plasma arc three-dimensional dynamic spectrum as claimed in claim 1; It is characterized in that; When carrying out spectral detection; The maximum distance of object lens two (4) to micro-beam plasma arc (6) is less than or equal to one times of focal length, and detector lens (7) is made X, Y in micro-beam plasma arc (6) periphery and the three-dimensional stepping of Z is moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101012309A CN101738257B (en) | 2010-01-26 | 2010-01-26 | System for detecting micro-beam plasma arc three-dimensional dynamic spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101012309A CN101738257B (en) | 2010-01-26 | 2010-01-26 | System for detecting micro-beam plasma arc three-dimensional dynamic spectrum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101738257A CN101738257A (en) | 2010-06-16 |
| CN101738257B true CN101738257B (en) | 2012-01-25 |
Family
ID=42462021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101012309A Expired - Fee Related CN101738257B (en) | 2010-01-26 | 2010-01-26 | System for detecting micro-beam plasma arc three-dimensional dynamic spectrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101738257B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607700B (en) * | 2012-03-06 | 2013-10-16 | 上海交通大学 | Device for scanning and acquiring plane dynamic arc spectrum in real time |
| CN103776533A (en) * | 2014-01-26 | 2014-05-07 | 上海交通大学 | Multi-photography synchronous spectrum collection system for measuring temperature and concentration of multi-component welding arc |
| CN105759203A (en) * | 2016-04-01 | 2016-07-13 | 平高集团有限公司 | Arc test device |
| CN106289519B (en) * | 2016-07-29 | 2018-01-30 | 华中科技大学 | Molten bath plasma resonance spectra collection mechanism and laser soldering device |
| CN108254066A (en) * | 2018-01-03 | 2018-07-06 | 上海工程技术大学 | Automobile Three-Dimensional Dynamic noise measuring identifying system and method based on neural network |
| CN108326393B (en) * | 2018-03-07 | 2020-01-17 | 西安交通大学 | Robot welding process control and multi-sensing signal synchronous acquisition system and method |
| CN109702305B (en) * | 2019-01-28 | 2021-03-23 | 上海工程技术大学 | Interference decoupling method for micro-beam plasma arc welding arc three-dimensional spectrum |
| CN111014708B (en) * | 2019-12-30 | 2022-07-01 | 西安赛隆金属材料有限责任公司 | Method and device for determining flame diameter of plasma arc |
| CN111992854B (en) * | 2020-08-28 | 2021-12-28 | 哈尔滨工业大学（威海） | Method and device for collecting plasma spectrum spatial domain information |
-
2010
- 2010-01-26 CN CN2010101012309A patent/CN101738257B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101738257A (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101738257B (en) | System for detecting micro-beam plasma arc three-dimensional dynamic spectrum | |
| Kurzan et al. | Edge and core Thomson scattering systems and their calibration on the ASDEX Upgrade tokamak | |
| CN103592025B (en) | Spectroscopic analysis system | |
| EP2554960B1 (en) | Optical system and focusing structure for infrared thermometer | |
| CN105571983A (en) | Method and system for measuring geometric density of nuclear fuel pellet | |
| CN201434840Y (en) | Laser probe micro-zone composition analyzer | |
| CN102785126A (en) | Tool magazine and automatic tool changer comprehensive performance detecting system | |
| CN101587074A (en) | Component analyzer for laser probe micro-area | |
| CN203375949U (en) | High temperature adaptability infrared observation system optical axis parallelism and MRTD outdoor detection device | |
| CN105509702A (en) | Photoelectric inertia harmonization system three-dimensional space angle measuring instrument | |
| CN103743710B (en) | Based on the portable laser probe analytical instrument of fiber laser | |
| CN105143838B (en) | Monomer-type weighing system | |
| Bohm et al. | Edge Thomson scattering diagnostic on COMPASS tokamak: Installation, calibration, operation, improvements | |
| CN104122498B (en) | Photoelectric approach switch motion distance detection system | |
| CN105222992A (en) | A kind of Laser Beam Quality Factor measuring method | |
| CN102507596A (en) | Optical element surface defect detecting system based on active laser beam scanning | |
| CN103308208A (en) | Method and device for quickly diagnosing transient temperature in plasma spatial field | |
| CN103940341A (en) | Displacement and inclination angle integrated test instrument | |
| CN102305785A (en) | Real-time online monitoring device for fused slag component | |
| CN204924186U (en) | Wide measuring device of laser facula | |
| CN103084927A (en) | Online measurement system and online measurement method thereof | |
| CN109668516A (en) | A kind of optical fiber far-field scanning instrument based on worm and gear | |
| CN111992854B (en) | Method and device for collecting plasma spectrum spatial domain information | |
| CN101216353A (en) | Optical fibre temperature measurement sensing system with high spatial resolution and high velocity | |
| CN103604472B (en) | A kind of digital gas flow sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20150126 |
|
| EXPY | Termination of patent right or utility model |