CN203745364U - Optical system with high energy utilization rate for flue gas concentration analyzer - Google Patents
Optical system with high energy utilization rate for flue gas concentration analyzer Download PDFInfo
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- CN203745364U CN203745364U CN201420136397.2U CN201420136397U CN203745364U CN 203745364 U CN203745364 U CN 203745364U CN 201420136397 U CN201420136397 U CN 201420136397U CN 203745364 U CN203745364 U CN 203745364U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 76
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003546 flue gas Substances 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 15
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 14
- 229910052805 deuterium Inorganic materials 0.000 claims description 14
- 239000013307 optical fiber Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001658 differential optical absorption spectrophotometry Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 241000139306 Platt Species 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides an optical system with a high energy utilization rate for a flue gas concentration analyzer and aims to overcome the defects that the traditional optical system for the flue gas concentration analyzer is low in energy utilization rate, is complex and incompact in structure and is poor in stability and reliability. The optical system comprises a light source, a transmitting single lens, an off-axis parabolic mirror, a measuring optical angle tapered mirror, a reference optical angle tapered mirror, a receiving single lens, a spectrograph and a rotating plane mirror, wherein the off-axis parabolic mirror and the measuring optical angle tapered mirror are oppositely arranged to form a measuring light path; a central symmetrical axis of the measuring optical angle tapered mirror is superposed with an optical axis of the off-axis parabolic mirror; a central symmetrical axis of the reference optical angle tapered mirror is perpendicular to the optical axis of the off-axis parabolic mirror.
Description
Technical field
The utility model relates to a kind of optical system of utilizing optics and spectroscopy technology to measure gas concentration, be core and the key component of flue gas concentration analyser as the optical system of optical signal transmission physical channel, its light transmissioning efficiency and signal to noise ratio (S/N ratio) have directly determined the key indexs such as signal to noise ratio (S/N ratio), sensitivity and the accuracy of measurement of whole analyser to a great extent.
Background technology
Flue gas discharge continuous monitoring system (CEMS, Continuous Emission Monitoring System) refers to the important watch-dog of conduction factory desulphurization and denitration system operation with closed ring, is again the important monitoring equipment of fume emission simultaneously.Along with the continuous propelling of China's energy-saving and emission-reduction work, SO in gaseous contaminant
2, NO
x, NH
3deng concentration of emission more and more lower, be originally difficult to adapt to current high humidity, the operating mode of low-sulfur based on the direct extraction cryochem that is applicable to low humidity, high-sulfur of infrared absorption spectroscopies.Late 1970s is proposed by people such as the Platt.U of Heidelberg, Germany university, in the direct measurement of atmospheric trace gas concentration monitor and pollution source smoke emissioning concentration, obtain success and application widely as more representational Differential Optical Absorption Spectroscopy in the direct method of measurement (Differential Optical Absorption Spectroscopy, DOAS).
The direct measuring system of flue gas concentration based on ultraviolet difference absorption spectroscopy techniques, optical system is core and key component wherein, and its utilization ratio of optical energy, collimation, signal to noise ratio (S/N ratio) etc. have determined the key indexs such as sensitivity, signal to noise ratio (S/N ratio), accuracy of measurement and the life-span of analyser to a great extent.The direct measuring system of flue gas concentration is installed on the floss hole of desulphurization denitration front and back and pollution source as chimney or flue etc., because measurand is common and other interference gas and dust etc. coexist, therefore system has certain requirement to the energy of transmitting light beam and Returning beam; And there is the impact of the factors such as vibration, high temperature due to scene, require system to there are higher reliability and stability.
At present, this type of optical system has mostly adopted semi-transparent semi-reflecting light splitting or has adopted the design philosophy of spherical mirror collimation, the less use of ultraviolet light refraction type system, be generally deuterium lamp (190-410 nm) or xenon lamp (200-1100 nm) mainly due to system light source used, radiation of light source wave band is wider, the material that can see through ultraviolet light is little, and chromatic aberration correction difficulty, often adopts CaF
2achromatism, but its material softness is frangible, poor for applicability to temperature, processing has certain difficulty, adds the on-the-spot factor such as vibration and high temperature, and refractive optical system is difficult to meet analyser requirement.For using semi-transparent semi-reflecting spectroscopical optical system, no matter be that reference light or measurement light are all wanted twice through different semi-transparent semi-reflecting spectroscopes, cause the light that light source sends on spectroscope, to lose 3/4 energy, the energy that finally enters photodetector is less than 1/4th, and the efficiency of light energy utilization is low; And for the optical system that adopts spherical mirror collimation, because spherical reflector has the feature of spherical aberration, the angle of divergence of deuterium lamp is larger simultaneously, so collimation effect is difficult to ensure, thereby cause the loss of energy and the generation of parasitic light, parasitic light can make absorption spectrum distortion, the directly accuracy of impact analysis, the parasitic light of optical system is not often fixed value simultaneously, is difficult to as Systematic Error Correction.So will take into full account the utilization factor of luminous energy and avoid as far as possible the impact of parasitic light on measurement result in design process.
Owing to having above shortcoming based on ultraviolet difference method flue gas on-line monitoring analyser optical system at present, be necessary the optical system of existing flue gas concentration analyser to carry out innovative design.
Utility model content
The utility model for existing flue gas concentration analyser optical system structure complexity, not compact, capacity usage ratio is low and the shortcoming of stability and poor reliability, and a kind of flue gas concentration analyser high-energy utilization factor optical system is provided.
concrete technical solution of the present utility model is as follows:
A kind of flue gas concentration analyser high-energy utilization factor optical system, this system comprises light source 1, spectroscope 4, measures optic angle axicon lens 8, reference light pyramid mirror 10, spectrometer 13 and rotary plane reflecting mirror 11, it is characterized in that: this system also comprises: off-axis parabolic mirror 6, transmitting simple lens 3 and plane mirror 5
Wherein off-axis parabolic mirror 6 is oppositely arranged formation optical path with measuring optic angle axicon lens 8, and described rotary plane reflecting mirror 11 is located on this optical path, and measures the central symmetry axis of optic angle axicon lens 8 and the optical axis coincidence of off-axis parabolic mirror 6;
Wherein the optical axis of off-axis parabolic mirror 6 is vertical with reference light pyramid mirror 10 central symmetry axis, and intersection point is positioned at rotary plane reflecting mirror 11 horizontal by 45
0on minute surface while setting;
Wherein spectroscope 4 is positioned at the upside of transmitting simple lens 3, blocks the incident light of half, and reflects whole return light, and this spectroscope 4 is 45 with optical axis included angle
0; Plane mirror 5 is 51.65 with horizontal direction
0, and being positioned at the upside of spectroscope 4, center is along transmitting simple lens 3 optical axis directions; The optical path on rotary plane reflecting mirror 11 right sides is provided with exhaust gases passes 14, and reference light pyramid mirror 10 is positioned at gas pond, and the central shaft of rotary plane reflecting mirror 11 overlaps with reference light pyramid mirror 10 central shafts;
Described light source 1 is positioned in the focus of transmitting light path, and optical fiber incident end is positioned at the focus place of receiving light path, and the exit end of this optical fiber 12 connects spectrometer 13.
Further design of the present utility model is:
It is base material that described spectroscope 4 and off-axis parabolic mirror 6 all adopt JGS1.
The direction one side that described spectroscope 4 is carried deuterium lamp is coated with ultraviolet high-reflecting film.
Described spectroscope 4 has 45 along transmitting simple lens 3 optical axis direction edges
0chamfering, bevelling and optical axis are tangent.
Described measurement optic angle axicon lens 8, off-axis parabolic mirror 6 are identical with the caliber size in gas pond with reference light pyramid mirror 10.
Described rotary plane reflecting mirror 11 is connected on a rotating mechanism.
According to the collimation property of parabolic mirror, in the ideal case, the light beam of focus outgoing is strict parallel feature after parabolic reflector, simultaneously for fear of central obscuration, system adopts off-axis parabolic mirror collimated light path, by off-axis parabolic mirror, transmit and receive simple lens, corner cube prism, spectroscope (one side plating ultraviolet aluminium mirror coating), plane mirror, rotary plane reflecting mirror, reasonably space layout and structure and dimensionally-optimised, the utility model designs a kind of flue gas concentration analyser high-energy utilization factor optical system.Compared with the flue gas concentration measuring system of same principle, the flue gas concentration analyser based on this optical system has higher sensitivity, accuracy of measurement and reliability, has good stability simultaneously.Especially, weak in the radiation light intensity of light source or tested gas concentration is higher, sensitivity and the accuracy of measurement of system also significantly improve; Meanwhile, high sensitivity Optical System Design has also extended the effective storage life of light source relatively.
technique effect of the present utility model is as follows:
1, the utility model flue gas concentration analyser adopts refraction-reflection design, because the angle of divergence of ultraviolet deuterium lamp is large, so system is assembled light source by a simple lens; Beam collimation part adopts off-axis parabolic mirror, thereby the light beam that light source sends can well be collimated, and has avoided the beam divergence that uses spherical reflector to cause, thereby has reduced energy loss in beam propagation process and the generation of parasitic light;
2, the spectroscope that the utility model flue gas concentration analyser adopts is the quartzy plane mirror of one side plating ultraviolet aluminium film, the light beam that light source sends is through spectroscope, this spectroscope blocks the incident light of half, and reflect whole return light, avoid semi-transparent semi-reflecting spectroscopical use in like product, not only the efficiency of light energy utilization is improved to 2 times, the while has also been avoided due to problems such as the instability that the semi-transparent semi-reflecting film processing cost of 200-400nm wave band ultraviolet is high, plated film is difficult, work long hours;
3, compare with current similar optical system, under same light source irradiation intensity, greatly improve by the luminous energy of native system, system sensitivity increases;
4, system signal noise ratio equals the useful light intensity signal of reception and the ratio of the root mean square of noise, and under integral time and average time the same terms, noise of detector is identical, and light intensity is larger, and system signal noise ratio is higher, and the measuring accuracy of system is also just higher;
5, native system, by the use of rotating mirror, is located in same device with demarcating pond with reference to light path, makes whole flue gas analyzer optical-mechanical system compact conformation;
6, utilize collimation property and spectroscopical reasonable use of off-axis parabolic mirror, the utility model adopts catadioptric optical system to solve the problem that structure is not compact or capacity usage ratio is low of current similar optical system.Under the radiation intensity of same light source, using highly sensitive optical system to enter the light intensity of photodetector will be far above general optical system, has improved sensitivity and the signal to noise ratio (S/N ratio) of flue gas analyzer, and the accuracy of measurement of instrument is improved.The raising of optical system sensitivity, also relatively " prolongation " serviceable life of light source.
Brief description of the drawings
Fig. 1 is light path design schematic diagram of the present utility model.
Wherein rotating mirror present position A and position B are respectively in optical path and reference path, and gas pond and reference light pyramid mirror are located in same device.
In Fig. 1,1, light source; 2, bulb glass wall; 3, transmitting simple lens; 4, spectroscope; 5, plane mirror; 6, off-axis parabolic mirror; 7, off-axis parabolic mirror main shaft; 8, measure optic angle axicon lens; 9, exhaust gases passes; 10, reference light pyramid mirror; 11, rotary plane reflecting mirror; 12, optical fiber; 13, spectrometer; 14 exhaust gases passes.
Embodiment
example one:
As shown in Figure 1, flue gas concentration analyser high efficiency light utilization factor optical system of the present utility model, this system comprises light source 1, transmitting simple lens 3, spectroscope 4, plane mirror 5, off-axis parabolic mirror 6, measures optic angle axicon lens 8, reference light pyramid mirror 10, rotary plane reflecting mirror 11, optical fiber 12 and spectrometer 13.
The core collimation optics off axis paraboloid mirror 6 that the utility model uses is positioned at the upper left side of optical system.The switching that system is realized reference light and measured light by plane mirror rotating mechanism, the upper right side of electric rotating machine in whole light path, in the time that rotary plane reflecting mirror 11 is positioned at horizontal level A, system is in measuring state; In the time that rotary plane reflecting mirror 11 and horizontal direction are 45 ° of position B, system is in reference or demarcation state.
Except plane mirror 5 and rotary plane reflecting mirror 11 are K9 glass, other optical elements are JGS1 silica glass material, on off-axis parabolic mirror 6 parabolas, plate ultraviolet reflectance film, and spectroscope 4 is in face of carrying deuterium lamp direction plating one side ultraviolet reflectance film.Spectroscope 4 is 45 with the optical axis of transmitting simple lens 3
0angle, has 45 along optical axis direction edge
0chamfering, bevelling and optical axis are tangent.Plane mirror 5 and rotary plane reflecting mirror 11 are all along Lighting direction plating one side ultraviolet highly reflecting films.
Reference light pyramid mirror 8 (or measuring light reflection mirror 10) is corner cube prism, has three right angle faces and a circular face, is the inner full-reflection prism of manufacturing according to critical angle principle.The directional light of vertical incidence prism surface, will be reflected back efficiently by former direction in prism inside after total reflection.
Spectrometer 13 of the present utility model is photodetector, and the light signal receiving is transformed into electric signal by it.Can through processing unit, signal be linked to computing machine again, finally export on computers full wave spectrogram.
The saturating UV fiber of height that optical fiber 12 is 0.22 for core diameter 600um, numerical aperture, optical fiber two ends are SMA905 modular connection.
Rotary plane reflecting mirror 11 is for having the plane mirror of certain width and height, the switching that has realized reference light and measure light under the drive of electric rotating machine.
In Fig. 1, the horizontal primary optical axis of system taking off-axis parabolic mirror 6 place optical axises as system.The light that light source 1 sends, after transmitting simple lens 3 optically focused, by JGS1 quartz glass spectroscope 4, is adjusted into 45 by spectroscope 4 and the optical axis of transmitting simple lens 3
0angle, makes it block the incident light of half and reflects whole return light, and half light beam is through plane mirror 5, and light beam is turned back, and adjusting plane mirror 5 is 51.65 with horizontal direction
0, light beam irradiates, to first bore of off-axis parabolic mirror 6, becomes directional light by half beam collimation.
When rotary plane reflecting mirror 11 is during in position A, half light beam is measured optic angle axicon lens 8 through vertically entering after measured object, measures the central symmetry axis of optic angle axicon lens 8 and the optical axis coincidence of off-axis parabolic mirror 6.Measure light reflection mirror 8 and be called again corner cube prism, be characterized in three right angle faces, light therein after total reflection along incident light outgoing in the other direction.The light beam irradiates reflecting is to second bore of off-axis parabolic mirror 6, and light beam converges on mirror surface, and light path is reflected by spectroscope 4 after turning back, and line focus lens 10 focus on.
When rotary plane reflecting mirror 11 is during in position B, half light beam is turned back 90
0, through reference light pyramid mirror 14, light beam returns by former direction, and the light beam irradiates reflecting is to second bore of off-axis parabolic mirror 6, and light beam converges on mirror surface, and light path is reflected by spectroscope 4 after turning back, and line focus lens 10 focus on.
the course of work of the present utility model is as follows:
In the utility model, light source used is deuterium lamp, and the size of luminous point is 0.5mm.After diameter 6 mm beam emissions simple lens 3 optically focused that deuterium lamp light source 1 sends, by JGS1 quartz glass spectroscope 4, block the incident light of half, second half light beam is through plane mirror 5, light beam is turned back, and adjusting rotary plane reflecting mirror 11 is 51.65 with horizontal direction
0, light beam irradiates is to first bore of off-axis parabolic mirror 6, and half light beam is collimated into directional light.
System is utilized single detector to reference light and is measured the timesharing measurement that light carries out, for a certain moment, in optical system, reference light and measurement light can not exist simultaneously, the switching of reference light and measurement light realizes by rotary plane reflecting mirror 11, when rotating mirror 11 is during in position A, system is in measuring state, half light beam is measured optic angle axicon lens 8 through vertically entering after measured object, light beam is by reflecting on second bore that is irradiated to off-axis parabolic mirror 6 in the other direction, light beam converges on mirror surface, light path is reflected by spectroscope 4 after turning back, focus on finally by condenser lens 10.When rotary plane reflecting mirror 11 is during in position B, system in reference to or demarcation state, half light beam is turned back 90
0, through reference light pyramid mirror 14, light beam is by returning in the other direction, the same with the reflection of measurement light, focuses on finally by receiving simple lens 10, can judge the serviceable life of light source when utilizing this reference light to carry out flue gas concentration calculating.In the time leading to corresponding measurement gas in the gas pond at reference light place, system is in demarcation state; After light focusing, enter the silica fibre of ultraviolet, enter again spectrometer 12 by the conduction of optical fiber.The light signal that spectrometer 12 is loaded with flue gas concentration is converted into electric signal, can after a series of processing, become digital quantity again and send into the computing machine that flue gas concentration measuring software is housed.
application example one:
According to Fig. 1, its concrete structure of the utility model and statement parameter are as follows:
In the utility model, the size of deuterium lamp light source luminescent point used is 0.5mm, and bulb wall thickness is 1mm, and radiation of light source wavelength band is 190～410nm, and the angle of divergence is 20
0.Deuterium lamp light source is assembled through transmitting simple lens 3, and lens material is JGS1, and lens are 16mm apart from luminous point, and center thickness is 4mm, and lens are plane towards deuterium lamp one side, and another side radius is 15.231mm.Spectroscope 4 is that a rectangle quartz is dull and stereotyped, wherein long for 8mm, wide be 6mm, the thick 3mm of being, this spectroscope and optical axis included angle are 45
0, have 45 along optical axis direction edge
0chamfering, bevelling and optical axis are tangent, carry deuterium lamp direction plating ultraviolet aluminium mirror coating, and on this face optical axis, putting the signal-lens centre distance of transmitting is 8mm.Plane mirror 5 is that a rectangle quartz is dull and stereotyped, and the distance of putting on catoptron center and spectroscope axle is 8mm, wherein long for 14mm, wide be 10mm, the thick 3mm of being, be 51.65 with horizontal direction
0, in face of light source direction one side plating ultraviolet aluminium mirror coating.Light beam after convergence is collimated into directional light through off-axis parabolic mirror 6, and the central horizontal distance of off axis paraboloid mirror centre distance spectroscope 4 is 95mm, and vertically distance is 22.5mm, the radius-of-curvature of off axis paraboloidal mirror 6 is 300mm, bore is 36mm, is 35mm from axle amount, and incident angle is 20
0time, on parabola, spot size is 15mm, the spot size at 2m place is 17mm, collimates functional.Wherein the incident angle of system is greater than the angle of divergence of deuterium lamp used, can effectively accept the emittance of deuterium lamp.Receiving simple lens material is JGS1, the distance of putting on lens center and spectroscope axle is 8mm, center thickness is 4mm, lens are plane towards spectroscope one side, another side radius is 22.495mm, and focus is 18mm to the distance of lens, and emergent light numerical aperture is 0.164, be less than the numerical aperture 0.22 that receives optical fiber, can effectively accept the energy of light.
The length of rotary plane reflecting mirror 11 is 54mm, and wide is 46mm, and thick is 4mm, one side plating ultraviolet reflectance film.
The large face diameter of measuring optic angle axicon lens and reference light pyramid mirror is 40mm, is highly 34.75, and beam deflection angle is 180
0, material is JGS1.
Claims (6)
1. a flue gas concentration analyser high-energy utilization factor optical system, this system comprises light source (1), spectroscope (4), measures optic angle axicon lens (8), reference light pyramid mirror (10), spectrometer (13) and rotary plane reflecting mirror (11), it is characterized in that: this system also comprises: off-axis parabolic mirror (6), transmitting simple lens (3) and plane mirror (5);
Wherein off-axis parabolic mirror (6) is oppositely arranged formation optical path with measurement optic angle axicon lens (8), described rotary plane reflecting mirror (11) is located on this optical path, and measures the central symmetry axis of optic angle axicon lens (8) and the optical axis coincidence of off-axis parabolic mirror (6);
Wherein the optical axis of off-axis parabolic mirror (6) is vertical with reference light pyramid mirror (10) central symmetry axis, and intersection point is positioned at rotary plane reflecting mirror (11) horizontal by 45
0on minute surface while setting;
Wherein spectroscope (4) is positioned at the upside of transmitting simple lens (3), blocks the incident light of half, and reflects whole return light, and this spectroscope (4) is 45 with optical axis included angle
0; Plane mirror (5) is 51.65 with horizontal direction
0, and being positioned at the upside of spectroscope (4), center is along transmitting simple lens (3) optical axis direction; The optical path on rotary plane reflecting mirror (11) right side is provided with exhaust gases passes (14), and reference light pyramid mirror (10) is positioned at gas pond, and the central shaft of rotary plane reflecting mirror 11 overlaps with reference light pyramid mirror (10) central shaft;
Described light source (1) is positioned in the focus of transmitting light path, and optical fiber incident end is positioned at the focus place of receiving light path, and the exit end of this optical fiber (12) connects spectrometer (13).
2. flue gas concentration analyser high-energy utilization factor optical system according to claim 1, is characterized in that: it is base material that described spectroscope (4) and off-axis parabolic mirror (6) all adopt JGS1.
3. flue gas concentration analyser high-energy utilization factor optical system according to claim 1, is characterized in that: the direction one side that described spectroscope (4) is carried deuterium lamp is coated with ultraviolet high-reflecting film.
4. according to the flue gas concentration analyser high-energy utilization factor optical system described in claim 1 or 3, it is characterized in that: described spectroscope (4) has 45 along transmitting simple lens (3) optical axis direction edge
0chamfering, bevelling and optical axis are tangent.
5. flue gas concentration analyser high-energy utilization factor optical system according to claim 3, is characterized in that: described measurement optic angle axicon lens (8), off-axis parabolic mirror (6) are identical with the caliber size in gas pond with reference light pyramid mirror (10).
6. flue gas concentration analyser high-energy utilization factor optical system according to claim 4, is characterized in that: described rotary plane reflecting mirror (11) is connected on a rotating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136397.2U CN203745364U (en) | 2014-03-25 | 2014-03-25 | Optical system with high energy utilization rate for flue gas concentration analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136397.2U CN203745364U (en) | 2014-03-25 | 2014-03-25 | Optical system with high energy utilization rate for flue gas concentration analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN203745364U true CN203745364U (en) | 2014-07-30 |
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ID=51345149
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574866A (en) * | 2014-08-01 | 2017-04-19 | 卡尔蔡司光谱有限公司 | Measuring arrangement for reflection measurement |
| CN107703616A (en) * | 2016-08-08 | 2018-02-16 | 大连光耀辉科技有限公司 | Multi-channel laser output equipment and fluorescence microscope |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN110426349A (en) * | 2019-08-30 | 2019-11-08 | 青岛众瑞智能仪器有限公司 | A kind of method and its gas chamber, measuring instrument improving flue gas analyzer stability |
| CN111044487A (en) * | 2019-12-31 | 2020-04-21 | 绍兴市中测检测技术股份有限公司 | TDLAS technology dangerous gas leakage detection device |
-
2014
- 2014-03-25 CN CN201420136397.2U patent/CN203745364U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574866A (en) * | 2014-08-01 | 2017-04-19 | 卡尔蔡司光谱有限公司 | Measuring arrangement for reflection measurement |
| CN106574866B (en) * | 2014-08-01 | 2021-08-10 | 卡尔蔡司光谱有限公司 | Measuring device for reflection measurement |
| CN107703616A (en) * | 2016-08-08 | 2018-02-16 | 大连光耀辉科技有限公司 | Multi-channel laser output equipment and fluorescence microscope |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN110426349A (en) * | 2019-08-30 | 2019-11-08 | 青岛众瑞智能仪器有限公司 | A kind of method and its gas chamber, measuring instrument improving flue gas analyzer stability |
| CN110426349B (en) * | 2019-08-30 | 2023-05-30 | 青岛众瑞智能仪器股份有限公司 | Method for improving stability of flue gas analyzer, gas chamber and measuring instrument thereof |
| CN111044487A (en) * | 2019-12-31 | 2020-04-21 | 绍兴市中测检测技术股份有限公司 | TDLAS technology dangerous gas leakage detection device |
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