CN106124404A - A kind of multiple reflections absorbs sample cell - Google Patents
A kind of multiple reflections absorbs sample cell Download PDFInfo
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- CN106124404A CN106124404A CN201610579052.8A CN201610579052A CN106124404A CN 106124404 A CN106124404 A CN 106124404A CN 201610579052 A CN201610579052 A CN 201610579052A CN 106124404 A CN106124404 A CN 106124404A
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- 239000000463 material Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000004445 quantitative analysis Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Abstract
The invention belongs to technical field of optical detection, be specifically related to a kind of multiple reflections and absorb sample cell, including the tubular shell of sealing two ends, and the internal reflection subassembly arranged of tubular shell；The wherein end face of described tubular shell is provided with into light window and light-emitting window, described in enter on light window and light-emitting window, to be equipped with the window that infrared band material is made, the two ends of the periphery of tubular shell are provided with air inlet and gas outlet.The present invention arranges corner cube mirror at the adjacent edges of primary mirror, when reflecting light and deflecting away from primary mirror, utilizes corner cube mirror to make the pip of primary mirror side produce skew, forms one group of new reflection path, so that reflection stroke doubles；The stroke that shuttles back and forth making infrared waves is greatly increased, and meets the detection demand of ultramicron gas.
Description
Technical field
The invention belongs to technical field of optical detection, be specifically related to a kind of multiple reflections and absorb sample cell.
Background technology
In prior art, frequently with spectrogrph, gas being carried out Concentration Testing, its principle is: when infrared beam is through tested
During gas, gas can absorb infrared signal.Known by Lambert-Beer law, gas molecule absorbance be proportional to absorb light path,
Gas Molecular Density and gas molecular absorption coefficient.And gas with various molecule has different gas molecules sorb features.Therefore,
Quantitative inversion absorption Gas Molecular Density can be carried out by the absorbance spectrum after GAS ABSORPTION is carried out spectrum analysis.So
And, when gas concentration is too low, its gas molecule absorbance is more weak, and absorption spectrum performance is inconspicuous, now can be by increasing
Gas molecules sorb light path, to increase the absorbance of gas to be measured.The method increasing light beam travels in prior art is coquille
Bounce technique, as it is shown in figure 1, the method is by between infrared waves primary mirror 1 ' and secondary mirror 3a ', 3b ' in two groups of i.e. figures of coquille
Multiple reflections back and forth, to increase light beam travels.But, as in figure 2 it is shown, box indicating reflected spot in figure, the numeral in square frame
Represent reflection order, owing to odd-times reflection all occurs on secondary mirror 3a ', 3b ', so only having marked even number on primary mirror 1 '
The hot spot of secondary reflection.As seen from the figure, the method is limited to the size of coquille, and its order of reflection is limited, is measuring ultramicron gas
During body, still it is unable to reach effective light path.
Summary of the invention
It is an object of the invention to provide a kind of multiple reflections absorption sample cell that can increase and absorb light path.
For achieving the above object, the invention provides techniques below scheme: a kind of multiple reflections absorbs sample cell, including two
The tubular shell of end closure, and the internal reflection subassembly arranged of tubular shell；
The wherein end face of described tubular shell is provided with into light window and light-emitting window, described in enter light window and go out optical window
Being equipped with the window that infrared band material is made on mouth, the two ends of the periphery of tubular shell are provided with air inlet and gas outlet；
Described reflection subassembly includes primary mirror and secondary mirror, and described primary mirror is made up of one piece of coquille, and described secondary mirror is by two pieces of balls
Face mirror that is first coquille and the second coquille are constituted, and the minute surface of described primary mirror and secondary mirror is oppositely arranged, and primary mirror is positioned at into light
Window and the one end at light-emitting window place；Incident illumination is injected from primary mirror side, and beats on the first coquille of secondary mirror, through first
Coquille reflection post-concentration is on primary mirror, the most successively according to the second coquille, primary mirror, the first coquille, primary mirror, the second sphere
Mirror sequentially pass through repeatedly Circulated reflection, until the reflection light of secondary mirror deflects away from the mirror sections of primary mirror, the converging light of secondary mirror reflection
Bundle can form multiple hot spot on primary mirror；The adjacent edges of described primary mirror is additionally provided with corner cube mirror, and described corner cube mirror sets
Put in position corresponding to the hot spot that will deflect away from primary mirror mirror sections, utilize corner cube mirror, can be by beam deviation tailing edge
The characteristic that former direction returns, makes this hot spot position on primary mirror produce skew, and makes light beam return along former direction, so that instead
Penetrate number of times to double.
The minute surface of described primary mirror is generally T-shaped, and the area of absence of T-shaped minute surface both sides respectively constitutes light inlet and light-emitting window,
This light inlet and light-emitting window respectively with enter light window and light-emitting window just to setting on tubular shell, incident beam is carried on the back from primary mirror
Beat on the first coquille of secondary mirror after light inlet afterwards, after multiple reflections, reflexed to light-emitting window by the second coquille；Institute
The area of absence stating primary mirror minute surface both sides is respectively provided with a corner cube mirror, in light beam reflection process on two corner cube mirrors
Reflect respectively once.
Described primary mirror activity is arranged on primary mirror installing plate, makes the angle of pitch of primary mirror and lateral deflection angle adjustable.
Described primary mirror installing plate is provided with primary mirror side float plate, and described primary mirror side float plate is provided with and primary mirror side float plate
The guider screw that plate face is vertical, described guider screw is through the pilot hole of setting on primary mirror installing plate, and the diameter of this pilot hole is slightly
More than the diameter of guider screw, the top of described guider screw is provided with nut, is provided with pressure between described nut and primary mirror installing plate
Spring, the elastic force of stage clip makes primary mirror side float plate elastic abutment on the plate face of primary mirror installing plate；Also set on described primary mirror installing plate
Having jackscrew, described jackscrew constitutes threaded engagement with the screwed hole of setting on primary mirror installing plate, and jackscrew top is resisted against primary mirror side
For regulating the angle of primary mirror side float plate in float plate；Described jackscrew is provided with two groups, and two groups of jackscrews are separately positioned on primary mirror peace
The top of dress plate and sidepiece, be respectively used to regulate the angle of pitch and the lateral deflection angle of primary mirror side float plate；Described primary mirror is arranged on
In the float plate of primary mirror side.
Described secondary mirror is movably arranged on secondary mirror installing plate, makes the angle of pitch of two coquillees of secondary mirror and the lateral deflection angle can
Adjust.
Described secondary mirror installing plate is provided with two pieces of secondary mirror side float plate, and described secondary mirror side float plate is provided with floats with secondary mirror side
The guider screw that dynamic plate plate face is vertical, described guider screw through the pilot hole arranged on secondary mirror installing plate, this pilot hole straight
Footpath is slightly larger than the diameter of guider screw, and the top of described guider screw is provided with nut, sets between described nut and secondary mirror installing plate
Having stage clip, the elastic force of stage clip makes secondary mirror side float plate elastic abutment on the plate face of secondary mirror installing plate；On described secondary mirror installing plate
Being additionally provided with jackscrew, described jackscrew constitutes threaded engagement with the screwed hole of setting on secondary mirror installing plate, and jackscrew top is resisted against pair
In the float plate of mirror side, for regulating the angle of secondary mirror side float plate；On secondary mirror installing plate, corresponding every piece of secondary mirror side float plate sets
Having two groups of jackscrews, top and the sidepiece of two groups of jackscrew the most corresponding secondary mirror side float plate are arranged, and are used for regulating secondary mirror side float plate
The angle of pitch and lateral deflection angle；Two pieces of coquillees of described secondary mirror are separately mounted in two pieces of secondary mirror side float plate.
Described primary mirror installing plate is connected by two crossbeams with the two ends up and down of secondary mirror installing plate；The coquille of described primary mirror and
The coquille radius of secondary mirror is identical, and the distance between primary mirror and secondary mirror is equal to the radius of coquille.
All being coated with the reflectance coating for improving reflectance on the reflecting surface of described primary mirror and secondary mirror, described reflectance coating is plating
Gold, aluminize or silver-plated.
It is provided with Pressure gauge and adjusting hole away from the end face entering light window and light-emitting window one end, pressure on described tubular shell
Power table is gas pressure intensity in measuring cell, provides data for quantitative analysis, and adjusting hole can be in the case of not tearing pond open, to pair
The angle of mirror is adjusted.
The method have technical effect that: the reflection subassembly of the present invention arranges corner cube mirror at the adjacent edges of primary mirror,
When reflecting light and deflecting away from primary mirror, utilize corner cube mirror to make the pip of primary mirror side produce skew, form one group of new reflex circuit
Footpath, so that reflection stroke doubles；The stroke that shuttles back and forth making infrared beam is greatly increased, and the detection meeting ultramicron gas needs
Ask.
Accompanying drawing explanation
Fig. 1 is that multiple reflections of the prior art absorbs sample cell schematic diagram；
Fig. 2 is the primary mirror hot spot scattergram that in prior art, multiple reflections absorbs sample cell；
Fig. 3 is the schematic diagram of the present invention；
Fig. 4 is the primary mirror flare scattergram of the present invention, box indicating reflected spot in figure, the numeral expression in square frame
Reflection order, also due to odd-times reflection all occurs on secondary mirror, so only having marked even-times reflection on primary mirror
Hot spot；
Fig. 5 is the perspective view of the present invention；
Fig. 6 is the reflection subassembly perspective view of the present invention；
Fig. 7 is the primary mirror sectional view of the present invention；
Fig. 8 is the secondary mirror sectional view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As it is shown in figure 5, a kind of multiple reflections absorbs sample cell, it is characterised in that: include the tubular shell 25 of sealing two ends,
And the internal reflection subassembly arranged of tubular shell 25；
The wherein end face of described tubular shell 25 is provided with into light window 29 and light-emitting window 31, described in enter light window 29
Be equipped with the window that infrared band material is made, being respectively arranged at two ends with of the periphery of tubular shell 25 on light-emitting window 31
Air inlet 33 and gas outlet 35；
As shown in Figure 6, described reflection subassembly includes primary mirror 1 and secondary mirror 3, and described primary mirror 1 is made up of one piece of coquille, described
Secondary mirror 3 is made up of two pieces of coquillees that is first coquille 3a and the second coquille 3b, and described primary mirror 1 is relative with the minute surface of secondary mirror 3
Arrange, and primary mirror is positioned at into light window 29 and the one end at light-emitting window 31 place；Incident illumination is injected from primary mirror 1 side, and beats
On first coquille 3a of secondary mirror 3, through the first coquille 3a reflection post-concentration on primary mirror 1, the most successively according to the second sphere
Mirror 3b, primary mirror the 1, first coquille 3a, primary mirror the 1, second coquille 3b sequentially pass through repeatedly Circulated reflection, until secondary mirror 3
Reflection light deflects away from the mirror sections of primary mirror 1, and the convergent beam of secondary mirror 3 reflection can form multiple hot spot on primary mirror 1；Described primary mirror
The adjacent edges of 1 is additionally provided with corner cube mirror 5, and described corner cube mirror 5 is arranged on the hot spot that will deflect away from primary mirror 1 mirror sections
Corresponding position, the characteristic utilizing corner cube mirror 5 to be returned along former direction by light beam, make this hot spot on primary mirror 1
Position produces skew, and makes light beam return along former direction, so that order of reflection doubles.Input path is Path of Convergent Rays, assembles
Point is in primary mirror 1 incidence window position, and the point source being equivalent to primary mirror 1 incidence window position after light beam incidence diffuses to pair
On mirror 3, converging to again on primary mirror 1 after secondary mirror 3 reflects, last outgoing beam is also the window's position at primary mirror 1 opposite side.Always
It, be all divergent beams from primary mirror 1 to secondary mirror 3 direction, is all convergent beam from secondary mirror 3 to primary mirror 1 direction, the light on primary mirror 1
Speckle is all convergent point.
Preferably, as shown in Figure 4,5, 6, the minute surface of described primary mirror 1 is generally T-shaped, and the area of absence of T-shaped minute surface both sides is divided
Not Gou Cheng light inlet and light-emitting window, this light inlet and light-emitting window respectively with on tubular shell enter light window and light-emitting window is the most right
Arranging, incident beam is behind beaten on the first coquille 3a of secondary mirror 3 from primary mirror 1 after light inlet, after multiple reflections by
Second coquille 3b reflexes to light-emitting window；The area of absence of described primary mirror 1 minute surface both sides is respectively provided with a corner cube mirror 5, light
Bundle reflection process reflects once on two corner cube mirrors 5 respectively.Often increasing a corner cube mirror 5, light path increases by one
Times, the present embodiment is provided with two corner cube mirrors 5, and therefore light path adds twice.Time actually used, it is also possible to according to light path
Needing, regulate secondary mirror 3 angle, make light beam only through one of them corner cube mirror 5, light path the most only increases by one in this case
Times.
Further, the activity of described primary mirror 1 is arranged on primary mirror installing plate 7, makes the angle of pitch of primary mirror 1 and the lateral deflection angle can
Adjust.
The present embodiment preferably employs following assembling mode:
As it is shown in fig. 7, described primary mirror installing plate 7 is provided with primary mirror side float plate 9, described primary mirror side float plate 9 is provided with
The guider screw 15 vertical with float plate 9 plate face, primary mirror side, described guider screw 15 is through the guiding of setting on primary mirror installing plate 7
Hole, the diameter of this pilot hole is slightly larger than the diameter of guider screw 15, and the top of described guider screw 15 is provided with nut 17, described spiral shell
Being provided with stage clip 19 between female 17 and primary mirror installing plate 7, the elastic force of stage clip 19 makes primary mirror side float plate 9 elastic abutment install at primary mirror
On the plate face of plate 7；Jackscrew 21, described jackscrew 21 and the screw thread of setting on primary mirror installing plate 7 it is additionally provided with on described primary mirror installing plate 7
Hole constitutes threaded engagement, and jackscrew 21 top is resisted against in primary mirror side float plate 9 for regulating the angle of primary mirror side float plate 9；
Described jackscrew 21 is provided with two groups, and two groups of jackscrews 21 are separately positioned on top and the sidepiece of primary mirror installing plate 7, is respectively used to regulation main
The angle of pitch of mirror side float plate 9 and lateral deflection angle；Described primary mirror 1 is arranged in primary mirror side float plate 9.
Further, described secondary mirror 3 is movably arranged on secondary mirror installing plate 11, makes the angle of pitch of two coquillees of secondary mirror 3
Adjustable with lateral deflection angle.
As shown in Figure 8, the present embodiment preferably employs following assembling mode: described secondary mirror installing plate 11 is provided with two pieces of secondary mirrors
Side float plate 13, described secondary mirror side float plate 13 is provided with the guider screw 15 vertical with float plate 13 plate face, secondary mirror side, described
Guider screw 15 is through the pilot hole of setting on secondary mirror installing plate 11, and the diameter of this pilot hole is straight slightly larger than guider screw 15
Footpath, the top of described guider screw 15 is provided with nut 17, is provided with stage clip 19, stage clip between described nut 17 and secondary mirror installing plate 11
The elastic force of 19 makes secondary mirror side float plate 13 elastic abutment on the plate face of secondary mirror installing plate 11；Also set on described secondary mirror installing plate 11
Having a jackscrew 21, the screwed hole that described jackscrew 21 and secondary mirror installing plate 11 are arranged constitutes threaded engagement, and jackscrew 21 top against
In secondary mirror side float plate 13, for regulating the angle of secondary mirror side float plate 13；Corresponding every piece of secondary mirror side on secondary mirror installing plate 11
Float plate 13 is respectively provided with two groups of jackscrews 21, and top and the sidepiece of two groups of jackscrew 21 the most corresponding secondary mirror side float plate 13 are arranged, and use
The angle of pitch and lateral deflection angle in regulation secondary mirror side float plate 13；Two pieces of coquillees of described secondary mirror 3 are separately mounted to two pieces
In secondary mirror side float plate 13.
Further, as it is shown in figure 5, the two ends up and down of described primary mirror installing plate 7 and secondary mirror installing plate 11 are by two crossbeams
23 are connected；Described crossbeam is connected with the end plate 27 of tubular shell；The coquille of described primary mirror 1 and the coquille radius phase of secondary mirror 3
With, and the distance between primary mirror 1 and secondary mirror 3 is equal to the radius of coquille.
All being coated with the reflectance coating for improving reflectance on the reflecting surface of described primary mirror 1 and secondary mirror 3, described reflectance coating is plating
Gold, aluminize or silver-plated, the preferred Gold plated Layer of the present embodiment is as reflecting layer.
It is provided with Pressure gauge 271 away from the end face entering light window 29 and light-emitting window 31 one end on described tubular shell and adjusts
Whole hole 272, Pressure gauge 271 is gas pressure intensity in measuring cell, provides data for quantitative analysis, and adjusting hole 272 can not torn open
In the case of pond, the angle of secondary mirror 3 is adjusted.In pond after light path debugging, adjusting hole 272 needs to seal to be disposed,
Except air inlet 33 and gas outlet 35, whole sample cell is to seal.
When need not the light path so grown, light beam can be made anti-without right angle by adjusting the angle of two pieces of secondary mirrors 3
Penetrate mirror 5, only between primary mirror 1 and secondary mirror 3, after multiple reflections, directly penetrate window, the most anti-through right angle when the bigger light path of needs
Penetrate mirror 5.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (9)
1. a multiple reflections absorbs sample cell, it is characterised in that: include the tubular shell (25) of sealing two ends, and tubular shell
The internal reflection subassembly arranged of body (25)；
The wherein end face of described tubular shell (25) is provided with into light window (29) and light-emitting window (31), described in enter light window
And on light-emitting window (31), be equipped with the window that infrared band material is made, the two ends of the periphery of tubular shell (25) (29)
It is respectively equipped with air inlet (33) and gas outlet (35)；
Reflection subassembly includes primary mirror (1) and secondary mirror (3), and described primary mirror (1) is made up of one piece of coquille, and described secondary mirror (3) is by two
Block coquille that is first coquille (3a) and the second coquille (3b) are constituted, and described primary mirror (1) is relative with the minute surface of secondary mirror (3) to be set
Put, and primary mirror is positioned at into light window (29) and the one end at light-emitting window (31) place；Incident beam is injected from primary mirror (1) side,
And beat on first coquille (3a) of secondary mirror (3), through the first coquille (3a) reflection post-concentration on primary mirror (1), then depend on
Secondary according to the second coquille (3b), primary mirror (1), the first coquille (3a), primary mirror (1), the sequentially passing through of the second coquille (3b)
Repeatedly Circulated reflection, until the reflection light beam of secondary mirror (3) deflects away from the mirror sections of primary mirror (1), the convergent beam that secondary mirror (3) reflects
At primary mirror (1) the multiple hot spots of upper formation；The adjacent edges of described primary mirror (1) is additionally provided with corner cube mirror (5), and described right angle reflects
Mirror (5) is arranged on the hot spot corresponding position deflecting away from primary mirror (1) mirror sections, utilizes the corner cube mirror (5) can be inclined by light beam
Move the characteristic that the former direction of tailing edge returns, make this hot spot position on primary mirror (1) produce skew, and make light beam return along former direction
Return, so that order of reflection doubles.
Multiple reflections the most according to claim 1 absorbs sample cell, it is characterised in that: the minute surface of described primary mirror (1) is substantially
T-shaped, the area of absence of T-shaped minute surface both sides respectively constitutes light inlet and light-emitting window, this light inlet and light-emitting window respectively with tubulose
Entering light window and light-emitting window just to setting on housing, incident beam is beaten at secondary mirror behind from primary mirror (1) after light inlet
(3), on the first coquille (3a), after multiple reflections, light-emitting window is reflexed to by the second coquille (3b)；Described primary mirror (1) mirror
The area of absence of both sides, face is respectively provided with a corner cube mirror (5), upper point of two corner cube mirrors (5) in light beam reflection process
Do not reflect once.
Multiple reflections the most according to claim 1 absorbs sample cell, it is characterised in that: described primary mirror (1) is movably arranged on
On primary mirror installing plate (7), make the angle of pitch of primary mirror (1) and lateral deflection angle adjustable.
Multiple reflections the most according to claim 3 absorbs sample cell, it is characterised in that: set on described primary mirror installing plate (7)
Primary mirror side float plate (9), described primary mirror side float plate (9) is had to be provided with the guiding spiral shell vertical with float plate (9) plate face, primary mirror side
Nail (15), described guider screw (15) is through the upper pilot hole arranged of primary mirror installing plate (7), and the diameter of this pilot hole is slightly larger than leading
To the diameter of screw (15), the top of described guider screw (15) is provided with nut (17), described nut (17) and primary mirror installing plate
(7) being provided with stage clip (19) between, the elastic force of stage clip (19) makes primary mirror side float plate (9) elastic abutment at primary mirror installing plate (7)
On plate face；Jackscrew (21) it is additionally provided with on described primary mirror installing plate (7), described jackscrew (21) setting upper with primary mirror installing plate (7)
Screwed hole constitutes threaded engagement, and jackscrew (21) top is resisted against on primary mirror side float plate (9) and is used for regulating primary mirror side float plate
(9) angle；Described jackscrew (21) is provided with two groups, and two groups of jackscrews (21) are separately positioned on top and the side of primary mirror installing plate (7)
Portion, is respectively used to regulate the angle of pitch and the lateral deflection angle of primary mirror side float plate (9)；Described primary mirror (1) is arranged on primary mirror side and floats
On dynamic plate (9).
Multiple reflections the most according to claim 3 absorbs sample cell, it is characterised in that: described secondary mirror (3) is movably arranged on
On secondary mirror installing plate (11), make the angle of pitch of two coquillees of secondary mirror (3) and lateral deflection angle adjustable.
Multiple reflections the most according to claim 5 absorbs sample cell, it is characterised in that: set on described secondary mirror installing plate (11)
Two pieces of secondary mirror sides float plate (13), described secondary mirror side float plate (13) are had to be provided with vertical with float plate (13) plate face, secondary mirror side
Guider screw (15), described guider screw (15) is through the upper pilot hole arranged of secondary mirror installing plate (11), the diameter of this pilot hole
Slightly larger than the diameter of guider screw (15), the top of described guider screw (15) is provided with nut (17), and described nut (17) is with secondary
Being provided with stage clip (19) between mirror installing plate (11), the elastic force of stage clip (19) makes secondary mirror side float plate (13) elastic abutment pacify at secondary mirror
On the plate face of dress plate (11)；Jackscrew (21), described jackscrew (21) and secondary mirror installing plate it is additionally provided with on described secondary mirror installing plate (11)
(11) the upper screwed hole arranged constitutes threaded engagement, and jackscrew (21) top is resisted against on secondary mirror side float plate (13), is used for adjusting
The angle of joint secondary mirror side float plate (13)；Upper corresponding every piece of secondary mirror side float plate (13) of secondary mirror installing plate (11) is respectively provided with two groups of tops
Silk (21), top and the sidepiece of two groups of the most corresponding secondary mirror sides float plate (13) of jackscrew (21) are arranged, and are used for regulating secondary mirror side and float
The angle of pitch of dynamic plate (13) and lateral deflection angle；Two pieces of coquillees of described secondary mirror (3) are separately mounted to two pieces of secondary mirror sides and float
On plate (13).
Multiple reflections the most according to claim 5 absorbs sample cell, it is characterised in that: described primary mirror installing plate (7) and pair
The two ends up and down of mirror installing plate (11) are connected by two crossbeams (23), and described crossbeam is connected with the end plate (27) of tubular shell；Institute
The coquille stating primary mirror (1) is identical with the coquille radius of secondary mirror (3), and the distance between primary mirror (1) and secondary mirror (3) is equal to ball
The radius of face mirror.
Multiple reflections the most according to claim 1 absorbs sample cell, it is characterised in that: described primary mirror (1) and secondary mirror (3)
All be coated with the reflectance coating for improving reflectance on reflecting surface, described reflectance coating be gold-plated, aluminize or silver-plated.
Multiple reflections the most according to claim 7 absorbs sample cell, it is characterised in that: away from entering light on described tubular shell
The end face of window (29) and light-emitting window (31) one end is provided with Pressure gauge (271) and adjusting hole (272), and Pressure gauge (271) is used
Gas pressure intensity in measuring cell, provides data for quantitative analysis, and adjusting hole (272) can be in the case of not tearing pond open, to pair
The angle of mirror (3) is adjusted.
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| CN201610579052.8A CN106124404A (en) | 2016-07-21 | 2016-07-21 | A kind of multiple reflections absorbs sample cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610579052.8A CN106124404A (en) | 2016-07-21 | 2016-07-21 | A kind of multiple reflections absorbs sample cell |
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| CN107345912A (en) * | 2017-06-29 | 2017-11-14 | 安徽皖仪科技股份有限公司 | Multiple reflections flame atomizer |
| CN108303376A (en) * | 2017-12-15 | 2018-07-20 | 复旦大学 | The multi-chamber series connection gas sample cell of built-in reflective mirror |
| CN109253973A (en) * | 2018-06-28 | 2019-01-22 | 荧飒光学科技（上海）有限公司 | Gas cell for gaseous spectrum qualitative and quantitative analysis |
| CN110146471A (en) * | 2019-03-13 | 2019-08-20 | 常州龙新激光科技有限公司 | The design in the multiple round-trip reflected sample pond of small size |
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