CN101625270A - Flame temperature field and combustion intermediate product concentration field monitoring system designed on basis of optical compensation - Google Patents
Flame temperature field and combustion intermediate product concentration field monitoring system designed on basis of optical compensation Download PDFInfo
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- CN101625270A CN101625270A CN200910090030A CN200910090030A CN101625270A CN 101625270 A CN101625270 A CN 101625270A CN 200910090030 A CN200910090030 A CN 200910090030A CN 200910090030 A CN200910090030 A CN 200910090030A CN 101625270 A CN101625270 A CN 101625270A
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Abstract
The invention discloses a flame temperature field and combustion intermediate product concentration field monitoring system designed on the basis of optical compensation. Flame radiation light is collected by a flame speculum device and a detection wide-angle lens at the front end of the flame speculum device and transferred to a light split device, and narrow-band optical signals with different center wavelength are obtained by a wave filtering device; because all optical paths are different, optical path differences occur among different optical paths; because a lens is provided with different refraction rates in different wavelengths and generates the chromatic dispersion effect, all optical paths are provided with image planes in different distances; a light intensity distribution image in the same definition can be obtained on a CCD receiving device in such a way that the optical path differences and the chromatic dispersion effect are compensated by an optical compensating lens with different diopters; a concentration distribution figure of a combustion intermediate product is obtained by subtracting light intensity distribution images of two paths of signals; and the flame temperature field distribution is obtained by the light intensity comparison of other two paths of optical signals according to a colorimetric method. The invention can simultaneously obtain monitoring images of the two-dimensional distribution of the flame temperature and the concentration of the combustion intermediate product on line.
Description
[technical field]
The present invention is a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it mainly utilizes blackbody radiation rule and geometrical optics system to survey the CONCENTRATION DISTRIBUTION of the various intermediate products of flame combustion generation, Temperature Distribution when utilizing colourimetry to measure burning is in real time utilized to have in positive diopter or negative dioptric each light path of optical compensation lens compensation because the picture element difference that optical path difference and effect of dispersion cause.
[background technology]
At present, mainly come the concentration of combustion flame intermediate product is carried out on-line monitoring, but its measurement result is single-point concentration or zone leveling concentration by the optical radiation signal intensity under corresponding spectral line of spectrometer measurement or the bands of a spectrum; Adopt laser-induced fluorescence (LIF), Raman scattering and Fourier transformation infrared spectrometer etc. can obtain the Two dimensional Distribution of certain product or particle on the other hand, but these methods are difficult for obtaining simultaneously the Two dimensional Distribution of two or more intermediate products, and cost an arm and a leg, install complexity, in industry spot is used, have many difficulties.
The heat radiation brightness of the object of emission continuous spectrum and the relation of its temperature meet thermal radiation law.By Planck law as can be known, can utilize duochrome method (also claiming colourimetry) to measure flame temperature, that is, utilize two images of the radiation intensity under two kinds of different wave lengths that obtain on the CCD, try to achieve the temperature value of this pixel by the ratio of asking for respective pixel response in two images.If adopt the captured image of colourful CCD video camera, then can set up the temperature that tri colour thermometry is measured flame according to the principle of three primary colours and Planck law.
The present invention has further considered because the compensation problem of the image blur of flame temperature field that light path is different and effect of dispersion causes and combustion intermediate product concentration field on already present design basis.Because there is optical path difference in each bar light path difference between different light paths; Produce effect of dispersion owing to lens refractive index under different wave length is different again, make each light path have the picture plane of different distance.The present invention utilizes different have the dioptric optical compensation lens of plus or minus and compensates the influence that above-mentioned optical path difference and effect of dispersion bring, and makes the CCD receiving trap obtain the flame monochrome image of the sharpness unanimity of each light path.
[summary of the invention]
The present invention is a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it mainly utilizes blackbody radiation rule and geometrical optics system to survey the CONCENTRATION DISTRIBUTION of the various intermediate products of combustion flame generation, Temperature Distribution when utilizing colourimetry to measure burning is in real time utilized to have in positive diopter or negative dioptric each light path of optical compensation lens compensation because the picture element difference that chromatic dispersion and optical path difference cause.
A kind of flame temperature field and combustion intermediate product concentration field monitoring system provided by the invention based on the optical compensation design, by the following technical solutions:
This method is collected flame emission by the detection wide-angle lens of flame endoscopic device and front end thereof and is passed to light-dividing device, obtains the different narrowband optical signal of centre wavelength through filter; Because each bar light path difference, there is optical path difference between different light paths, again because the different effect of dispersions that produce of lens refractive index under different wave length, make each light path have the picture plane of different distance, utilization has different dioptric optical compensation lens described optical path difference and described effect of dispersion is compensated, and can obtain the light distribution image of same sharpness on the CCD receiving trap; Utilize the light distribution image of two paths of signals to subtract each other the concentration profile that obtains combustion intermediate product; Utilize other the light intensity of two ways of optical signals to compare, obtain flame temperature field distribution according to colourimetry; The present invention can onlinely obtain the surveillance map picture of flame temperature and combustion intermediate product concentration Two dimensional Distribution simultaneously.
Wherein, the detection wide-angle lens of described flame endoscopic device and front end thereof is collected flame emission and is passed to light-dividing device.Described flame endoscopic device comprises surveys wide-angle lens and parallel electro-optical device, surveys wide-angle lens and can collect the light wave of Fire Radiation in larger scope, and the directional light device can increase the transmission range of the light wave of collecting.
Wherein, described flame detection device outside has cooling cover, lowers the temperature to comprising the flame endoscopic device of surveying wide-angle lens and parallel electro-optical device by air cooling or water-cooled or both array modes.
Wherein, described light-dividing device comprises a plurality of Amici prisms, has semi-transparent semi-reflecting film or have to increase anti-film.The plated film design is in visible light or ultraviolet light or infrared light spectrum scope.Prismatic decomposition with semi-transparent semi-reflecting film is than designing according to application request.The incident light of each Amici prism and the surface of emergent light all need to plate anti-reflection film and increase logical light quantity.
Wherein, described filter comprises wave filter and fixed installation mechanical hook-up, and is wide according to centre wavelength and half-wave that the characteristic spectral line and the required wavelength of optical signal of measurement flame temperature field of monitored combustion intermediate product are selected the logical optical band of described wave filter.Wherein in two light paths that realize the monitoring flame temperature field, it is wide that the wave filter that selection is used has identical half-wave; In two light paths that realize monitoring combustion intermediate product concentration, it is wide that the wave filter that selection is used has identical half-wave.Be respectively from the narrowband optical signal of filter apparatus outgoing: the characteristic spectral line 1 of the specific combustion intermediate product on the flame blackbody radiation signal distributions; Blackbody radiation signal 2 near described characteristic spectral line and wave band non-overlapping copies; Signal 3 on the blackbody radiation of non-characteristic spectral line; Signal 4 on the blackbody radiation of non-characteristic spectral line.
Wherein, because each bar light path difference, there is optical path difference between different light paths, again because the different effect of dispersions that produce of lens refractive index under different wave length, make each light path have the picture plane of different distance, utilization has different dioptric optical compensation lens described optical path difference and described effect of dispersion is compensated, and can obtain the light distribution image of same sharpness on the CCD receiving trap.
Wherein, described CCD receiving trap front end has the camera lens device, and described camera lens device has focusing or zoom function, also can change object distance and image distance simultaneously, and has the logical light quantity of adjustable aperture controls lens, within the specific limits exactly to imaging combustion.Described CCD receiving trap can be chosen in the CCD that has the special spectrum responding range in ultraviolet light, visible light and the infrared light spectrum scope as required, to realize the imaging to the flame emission under the different wave length.Described CCD receiving trap, area size and the imaging size of its CCD has corresponding enlargement factor relation.
Wherein, according to blackbody radiation law, characteristic spectral line 1 by the specific combustion intermediate product on the flame blackbody radiation signal distributions deducts the light intensity intensity near the blackbody radiation signal 2 of described characteristic spectral line and wave band non-overlapping copies, obtains the Two dimensional Distribution of characteristic radiation signal intensity of the combustion intermediate product of practical significance.The characteristic radiation signal intensity is big more, and the local concentration of measured combustion intermediate product is high more.The light intensity of the signal 4 on the signal 3 on the blackbody radiation of non-characteristic spectral line and the blackbody radiation of non-characteristic spectral line is compared, and can obtain flame temperature field distribution according to colourimetry.
Wherein, described software processing system is C language development software systems, and can develop with computer language procedure system compatibles such as Matlab, labviw, VC, VB.The computing machine display interface is a human-computer interaction interface, can import and change parameter control total system, extract and handle the system data that has obtained, can adjust flame temperature field and the combustion intermediate product concentration field monitoring system that designs based on optical compensation by feedback data.
Wherein, can be expanded into polycomponent light prism and optical compensation lens, can change the logical band scope of wave filter and the diopter that the optical compensation lens have, thereby monitor the concentration of the multiple intermediate product in the combustion flame and the temperature of flame simultaneously, also side by side obtain the surveillance map picture of the concentration and the flame temperature Two dimensional Distribution of clear and accurate combustion intermediate product in real time.
Beneficial effect of the present invention: the present invention can be the on-line monitoring flame combustion state, effectively verifies that combustion model provides a kind of effective measurement means, and online adjustment combustion conditions parameter, the closed-loop control that realizes combustion process, raising burning efficiency, the discharging of reduction dusty gas are had great significance.And by the optical compensation lens, not only can compensate because the picture element difference that optical path difference causes between different light paths, and can compensate owing to optical lens has the dispersion phenomenon that different refractive indexes produces under different wave length, make the light distribution image with identical sharpness that on same imaging plane, can obtain each light path, the monitoring accuracy and the accuracy that have improved flame temperature field and combustion intermediate product concentration field.
[Figure of description]
Fig. 1 is based on the flame combustion monitoring system of optical compensation design and forms synoptic diagram;
Fig. 2 surveys aflame characteristic spectral line synoptic diagram;
[embodiment]
Collect flame emission in flame detecting wide-angle lens 111 maximum magnitudes by front end, pass to described light-dividing device 121 and 122 through described flame endoscopic device 112 afterwards, 113 pairs of flame endoscopic devices 112 of described cooling cover (comprising flame detecting wide-angle lens 111) processing of lowering the temperature.Flame detecting wide-angle lens 111 can be collected flame emission rapidly, exactly.Described flame endoscopic device comprises surveys wide-angle lens and parallel electro-optical device, and wide-angle lens can be collected the light wave of Fire Radiation in larger scope, and the directional light device can increase the transmission range of the light wave of collecting.The length of flame endoscopic device 112 and cooling cover 113 is generally tens centimetres to 1 meter according to the wall thickness design of burner.The mode of cooling can be air cooling or water-cooled or both combinations.
Incident radiation light passes to light-dividing device 121 and 122.At first the incident Amici prism 121, because Amici prism 121 has semi-transparent semi-reflecting film, anti-reflection coefficient is with to increase reciprocal coefficient identical, so half energy transmission of the light of incident is gone out formation light signal I.Another part reflects to Amici prism 122.Have on the Amici prism 122 and increase anti-film, increasing reciprocal coefficient is 1, almost all reflects away, and forms light signal II.This moment, light signal I was identical with light signal II intensity.The incident light of Amici prism and the surface of emergent light all need to plate anti-reflection film and increase logical light quantity.
The light signal I of outgoing passes to light-dividing device 124 and 123.At first the incident Amici prism 124, because Amici prism 124 has semi-transparent semi-reflecting film, anti-reflection coefficient is with to increase reciprocal coefficient identical, so half energy transmission of the light of incident is gone out formation light signal 1.Another part reflects to Amici prism 123.Have on the Amici prism 123 and increase anti-film, increasing reciprocal coefficient is 1, almost all reflects away, and forms light signal 2.This moment, light signal 1 was identical with light signal 2 intensity.The incident light of Amici prism and the surface of emergent light all need to plate anti-reflection film and increase logical light quantity.
The light signal II of outgoing passes to light-dividing device 125 and 126.At first the incident Amici prism 125, because Amici prism 125 has semi-transparent semi-reflecting film, anti-reflection coefficient is with to increase reciprocal coefficient identical, so half energy transmission of the light of incident is gone out formation light signal 3.Another part reflects to Amici prism 126.Have on the Amici prism 126 and increase anti-film, increasing reciprocal coefficient is 1, almost all reflects away, and forms light signal 4.This moment, light signal 3 was identical with light signal semi-finals degree.The incident light of Amici prism and the surface of emergent light all need to plate anti-reflection film and increase logical light quantity.
Intensity same light signal 1, light signal 2, light signal 3 and light signal 4 are λ through obtaining centre wavelength behind wave filter 131, wave filter 132, wave filter 133 and the wave filter 134 respectively
1Narrowband optical signal 1, centre wavelength be λ
2Narrowband optical signal 2, centre wavelength be λ
3Narrowband optical signal 3, centre wavelength be λ
4Narrowband optical signal 4.Wherein in two light paths that realize the monitoring flame temperature field, it is wide to select the wave filter 131 that uses and wave filter 132 to have an identical half-wave; In two light paths that realize the monitoring flame intermediate, it is wide to select the wave filter 133 that uses and wave filter 134 to have an identical half-wave.
The wide selection mode of described wave filter 131 and 132 centre wavelength and half-wave is following specifically described: the central wavelength lambda of narrow band filter 131
1The characteristic radiation core wavelength of corresponding measured combustion intermediate product, the wide Δ λ of the half-wave of narrow band filter 131
1The wide Δ λ of half-wave according to the characteristic radiation spectral line of measured combustion intermediate product
0Select, Δ λ is satisfied in a kind of selection
1＞Δ λ
0, perhaps a kind of Δ λ that is chosen as
1=Δ λ
0The central wavelength lambda of narrow band filter 132
2Choose satisfied | λ
2-λ
1| 〉=2 Δ λ
1, it is wide that narrow band filter 132 and narrow band filter 131 have the half-wave that equates, and [λ
2-Δ λ
1, λ
2+ Δ λ
1] there is not the characteristic radiation spectral line of other products in the wave band.As long as do not overlap with the characteristic spectral line of other products, generally can select λ
2=λ
1-2 Δ λ
1Or λ
2=λ
1+ 2 Δ λ
1
The intensity of described narrowband optical signal 1 is characteristic radiation signal intensity 201 sums of interior flame blackbody radiation signal intensity 205 of described narrowband optical signal 1 shared wave band and specific combustion intermediate product, and the intensity of described narrowband optical signal 2 is the intensity 202 of flame blackbody radiation signal in the described narrowband optical signal 2 shared wave bands.Because λ
1Near λ
2, can think that flame blackbody radiation signal intensity 205 equates with the intensity 202 of flame blackbody radiation signal in the described narrowband optical signal 2 shared wave bands in the described narrowband optical signal 1 shared wave band.
Described narrowband optical signal 3 is the λ of non-characteristic spectral line on the blackbody radiation
3Signal 203, described narrowband optical signal 4 is the λ of non-characteristic spectral line on the blackbody radiation
4Signal 204.The wide selection mode of described narrow band filter 133 and 134 half-wave is following specifically described: narrow band filter 133 has the wide Δ λ of identical half-wave with narrow band filter 134
2The selection mode of the centre wavelength of described narrow band filter 133 and narrow band filter 134 is as described below: the central wavelength lambda of narrow band filter 133
3Central wavelength lambda with narrow band filter 134
4Should be in the response spectrum scope of flame blackbody radiation spectrum scope and CCD receiving trap 152, and [the λ that seen through of narrow band filter 133
3-Δ λ
2, λ
3+ Δ λ
2] [the λ that seen through of wave band and narrow band filter 134
4-Δ λ
2, λ
4+ Δ λ
2] wave band is not overlapping, and [λ
3-Δ λ
2, λ
3+ Δ λ
2] wave band and [λ
4-Δ λ
2, λ
4+ Δ λ
2] do not comprise the characteristic radiation spectral line of any material in the wave band.
Because when light incided the different material of another kind of optical density by a kind of material, the direction of propagation of its light produced deviation, this phenomenon is called dispersion phenomenon, represents the size of this chromatic dispersion degree with refractive power, and its unit is diopter (being abbreviated as " D ").The refractive power of 1D is equivalent to and parallel rays can be focused on 1 meter focal length.Refractive power is strong more, and focal length is short more.The refractive power of convex lens is with "+" number expression, and the refractive power of concavees lens is with "-" number expression.100 degree that 1 diopter or 1D equal often to say.Because the different dispersion phenomenons that produce of lens refractive index under different wavelength, each bar light path form the focal plane and the picture plane of different distance; Utilization has positive diopter or negative dioptric optical compensation lens compensation dispersion phenomenon.For example, diopter behind the filtered signal 201 process camera lens devices 151 is 2.05D, the diopter of filtered signal 202 after through camera lens devices 151 is 2.15D, can add diopters in signal 202 backs be-the optical compensation lens 142 of 0.1D; Perhaps add the optical compensation lens 141 that diopter is 0.1D in signal 201 backs.Signal 201 behind the change diopter is imaged on the CCD receiving trap 152 by the camera lens device with signal 202.
Owing to have optical path difference between each bar light path of design, utilize the optical compensation lens that the optical path difference between different light paths is compensated.As shown in Figure 1, the emergent light of Amici prism 124 has passed through 2 Amici prisms, is respectively Amici prism 121 and Amici prism 124; The emergent light of Amici prism 123 has passed through 3 Amici prisms, is respectively Amici prism 121, Amici prism 124 and Amici prism 123; The emergent light of Amici prism 125 has passed through 3 Amici prisms, is respectively Amici prism 121, Amici prism 122 and Amici prism 125; The emergent light of Amici prism 126 has passed through 4 Amici prisms, is respectively Amici prism 121, Amici prism 122, Amici prism 125 and Amici prism 126.Therefore the emergent light of Amici prism 123 and Amici prism 125 has more the light path of 1 Amici prism than the emergent light of beam split prism 124, and in like manner, the emergent light of Amici prism 126 has more the light path of 2 Amici prisms than the emergent light of beam split prism 124.According to the optics Gauss formula as can be known, image distance is along with object distance changes.Above-mentioned four light paths are owing to the light path difference, thereby the object distance difference, cause the image distance difference of imaging, i.e. the image planes difference.By changing the diopter of optical compensation lens, can change the object distance of each light path, thus the optical path difference of compensation different light paths.This compensation mechanism is combined with above-mentioned dispersion compensation mechanism, can adopt cover optical compensation lens to realize the compensation of each light path optical path difference and effect of dispersion simultaneously, thereby realize the unification of the image planes of each light path, on same picture plane (CCD camera), obtain the image of the same sharpness of each light path simultaneously, the monitoring accuracy and the accuracy that have improved flame temperature field and combustion intermediate product concentration field.
Filtered signal 203 and signal 204 pass to the camera lens device 151 of CCD receiving trap 152 front ends, be used for 152 imagings of CCD camera, described CCD receiving trap 152 is converted into digital signal transfers to optical image 155 and 156 and gives described software processing system.By described software processing system the light intensity I (λ of described narrowband optical signal 203 with described narrowband optical signal 204
3) 155 and light intensity I (λ
4) 156 compare, use the functional relation of Fire Radiation strength ratio under aflame flame temperature and the dual wavelength
Can obtain the image of flame temperature field.I (the λ that measures
3) and I (λ
4) change, corresponding combustion chamber temperature also changes accordingly.Therefore, can utilize this method to monitor the temperature variations of combustion flame in real time.
Described CCD receiving trap front end has the camera lens device, and described camera lens device has focusing or zoom function, can be within the specific limits exactly to imaging combustion.And the scope of position change object distance that can be by tuning image distance.Described CCD receiving trap can be chosen in the CCD that has the special spectrum responding range in ultraviolet light, visible light and the infrared light spectrum scope as required, to realize the imaging to the flame emission under the different wave length.Described CCD receiving trap, area size and the imaging size of its CCD has corresponding enlargement factor relation.
Described software processing system is C language development software systems, by computer real-time acquisition data and imaging, and can develop with computer language procedure system compatibles such as Matlab, labviw, VC, VB.The computing machine display interface is a human-computer interaction interface, can import and change parameter control total system, extract and handle the system data that has obtained, by feedback adjusting this flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design.
The described method of this inventing type patent can be expanded into a plurality of Amici prism systems and a plurality of optical compensation corrective system, by using the filter range of different wave filters, monitor the CONCENTRATION DISTRIBUTION of the multiple intermediate product that produces in the Temperature Distribution of flame and the burning simultaneously.
The above; only be the basic scheme of specific implementation method of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art that are in technical scope disclosed by the invention; the variation that can expect or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.All fall into the implication that is equal to of claim and the variation in the scope all will be included within the scope of claim.
Claims (10)
1, the present invention discloses a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design; Collect flame emission by the detection wide-angle lens of flame endoscopic device and front end thereof and pass to light-dividing device, obtain the different narrowband optical signal of centre wavelength through filter; Because each bar light path difference, there is optical path difference between different light paths, again because the different effect of dispersions that produce of lens refractive index under different wave length, make each light path have the picture plane of different distance, utilization has different dioptric optical compensation lens described optical path difference and described effect of dispersion is compensated, and can obtain the light distribution image of same sharpness on the CCD receiving trap; Utilize the light distribution image of two paths of signals to subtract each other the concentration profile that obtains combustion intermediate product; Utilize other the light intensity of two ways of optical signals to compare, obtain flame temperature field distribution according to colourimetry; The present invention can onlinely obtain the surveillance map picture of flame temperature and combustion intermediate product concentration Two dimensional Distribution simultaneously.
2,, it is characterized in that the detection wide-angle lens collection flame emission of described flame endoscopic device and front end thereof passes to light-dividing device according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design.Described flame endoscopic device comprises surveys wide-angle lens and parallel electro-optical device, surveys wide-angle lens and can collect the light wave of Fire Radiation in larger scope, and the directional light device can increase the transmission range of the light wave of collecting.
3, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that described flame detection device outside has cooling cover, lower the temperature to comprising the flame endoscopic device of surveying wide-angle lens and parallel electro-optical device by air cooling or water-cooled or both array modes.
4, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system, it is characterized in that described light-dividing device comprises a plurality of Amici prisms, have semi-transparent semi-reflecting film or have and increase anti-film based on optical compensation design.The plated film design is in visible light or ultraviolet light or infrared light spectrum scope.Prismatic decomposition with semi-transparent semi-reflecting film is than designing according to application request.The incident light of each Amici prism and the surface of emergent light all need to plate anti-reflection film and increase logical light quantity.
5, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that described filter comprises wave filter and fixed installation mechanical hook-up, wide according to centre wavelength and half-wave that the characteristic spectral line and the required wavelength of optical signal of measurement flame temperature field of monitored combustion intermediate product are selected the logical optical band of described wave filter.Wherein in two light paths that realize the monitoring flame temperature field, it is wide that the wave filter that selection is used has identical half-wave; In two light paths that realize monitoring combustion intermediate product concentration, it is wide that the wave filter that selection is used has identical half-wave.Be respectively from the narrowband optical signal of filter apparatus outgoing: the characteristic spectral line 1 of the specific combustion intermediate product on the flame blackbody radiation signal distributions; Blackbody radiation signal 2 near described characteristic spectral line and wave band non-overlapping copies; Signal 3 on the blackbody radiation of non-characteristic spectral line; Signal 4 on the blackbody radiation of non-characteristic spectral line.
6, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that because each bar light path difference, there is optical path difference between different light paths, again because the different effect of dispersions that produce of lens refractive index under different wave length, make each light path have the picture plane of different distance, utilization has different dioptric optical compensation lens described optical path difference and described effect of dispersion is compensated, and can obtain the light distribution image of same sharpness on the CCD receiving trap.
7, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that described CCD receiving trap front end has the camera lens device, described camera lens device has focusing or zoom function, also can change object distance and image distance simultaneously, and has the logical light quantity of adjustable aperture controls lens, within the specific limits exactly to imaging combustion.Described CCD receiving trap can be chosen in the CCD that has the special spectrum responding range in ultraviolet light, visible light and the infrared light spectrum scope as required, to realize the imaging to the flame emission under the different wave length.Described CCD receiving trap, area size and the imaging size of its CCD has corresponding enlargement factor relation.
8, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that according to blackbody radiation law, characteristic spectral line 1 by the specific combustion intermediate product on the flame blackbody radiation signal distributions deducts the light intensity intensity near the blackbody radiation signal 2 of described characteristic spectral line and wave band non-overlapping copies, obtains the Two dimensional Distribution of characteristic radiation signal intensity of the combustion intermediate product of practical significance.The characteristic radiation signal intensity is big more, and the local concentration of measured combustion intermediate product is high more.The light intensity of the signal 4 on the signal 3 on the blackbody radiation of non-characteristic spectral line and the blackbody radiation of non-characteristic spectral line is compared, and can obtain flame temperature field distribution according to colourimetry.
9, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, it is characterized in that described software processing system is C language development software systems, and can develop with computer language procedure system compatibles such as Matlab, labviw, VC, VB.The computing machine display interface is a human-computer interaction interface, can import and change parameter control total system, extract and handle the system data that has obtained, can adjust flame temperature field and the combustion intermediate product concentration field monitoring system that designs based on optical compensation by feedback data.
10, according to claim 1 described a kind of flame temperature field and combustion intermediate product concentration field monitoring system based on the optical compensation design, can be expanded into polycomponent light prism and optical compensation lens, can change the logical band scope of wave filter and the diopter that the optical compensation lens have, thereby monitor the concentration of the multiple intermediate product in the combustion flame and the temperature of flame simultaneously, also side by side obtain the surveillance map picture of the concentration and the flame temperature Two dimensional Distribution of clear and accurate combustion intermediate product in real time.
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