CN110186558A - The gold-plated integrating sphere light source of vacuum infrared - Google Patents
The gold-plated integrating sphere light source of vacuum infrared Download PDFInfo
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- CN110186558A CN110186558A CN201910408442.2A CN201910408442A CN110186558A CN 110186558 A CN110186558 A CN 110186558A CN 201910408442 A CN201910408442 A CN 201910408442A CN 110186558 A CN110186558 A CN 110186558A
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- mother bulb
- bulbec
- gold
- copper pipe
- light source
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000003032 molecular docking Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 98
- 229910052802 copper Inorganic materials 0.000 claims description 74
- 239000010949 copper Substances 0.000 claims description 74
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000005480 shot peening Methods 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 230000009021 linear effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VMXUWOKSQNHOCA-UKTHLTGXSA-N ranitidine Chemical compound [O-][N+](=O)\C=C(/NC)NCCSCC1=CC=C(CN(C)C)O1 VMXUWOKSQNHOCA-UKTHLTGXSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0403—Mechanical elements; Supports for optical elements; Scanning arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J2001/0481—Preset integrating sphere or cavity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of gold-plated integrating sphere light sources of vacuum infrared, it is characterized by comprising have mother bulb and several bulbecs, infraluminescence light source is placed in bulbec, each bulbec passes through respectively on the mother bulb opening flange that bulbec flange is mounted on, bulbec, the interface of mother bulb offers the opening of same diameter, the interface of mother bulb be respectively positioned on before mother bulb on hemisphere and mother bulb opening flange welding mother bulb interface, hemisphere is equipped with light-emitting window before mother bulb, bulbec has gap with the place of docking of mother bulb, electronic diaphragm is equipped in the gap, realization bulbec is moved horizontally by the electronic diaphragm of control, the opening and closing of the opening of mother bulb.The input current voltage that the present invention passes through change bulbec internal carbon fibers heating tube, the wavelength of adjustable emergent light, it is infrared in switch between far infrared, by the openings of sizes for changing electronic diaphragm, the spoke brightness that can change emergent light can achieve 1uW in the infrared spoke brightness maximum of light-emitting window.
Description
Technical field
The invention belongs to infrared optics and remote sensing equipment fields, and in particular to a kind of gold-plated integrating sphere light source of vacuum infrared.
Background technique
Infra-red radiation is also known as infrared ray and heat radiation, and wave-length coverage is 700nm ~ 1000um, between visible light and microwave it
Between, any temperature is higher than the object of absolute zero all in ceaselessly infrared radiation, and object temperature is higher, and radiation intensity is bigger,
Its radiation wavelength is shorter.The sun is strongest infra-red radiation near the earth, and quite stable, can be used as space infrared gear
Reference standard source.Common Infrared radiation source has black matrix, infrared lamp, carborundum plate, infrared laser etc..The ground of room temperature
The infrared energy of table object emission essentially consists in the mid and far infrared area of 3um, is heat radiation, and during propagation in atmosphere, it can lead to
Two windows of 3 ~ 5um and 8-14um are crossed, thermal infrared remote sensing is exactly to collect using spaceborne or airborne sensor, record this of atural object
Thermal infrared information, and atural object and inverting Land Surface Parameters such as temperature, humidity and thermal inertia etc. are identified using this thermal infrared information.
Compared to black matrix, if realizing the output of mid and far infrared, two kinds of combination of medium temperature black matrix and low temperature black matrix is needed, and
The uniformity of black matrix is poor, especially angle uniformity.And apparatus of the present invention have uniformity high, angle uniformity is good, background
Radiate low, broad tuning, with set of device realize in low black matrix two kinds of functions, and have the characteristics that stability is good, by surveying
Examination, after preheating in half an hour, the instability of carbon fiber quartz heating tube be can achieve within 1 ‰.By changing carbon
The input current voltage of fiber-heated pipe, the wavelength of adjustable emergent light is infrared in switch between far infrared, passes through change
The openings of sizes of electronic diaphragm, thus it is possible to vary the spoke brightness of emergent light can achieve in the infrared spoke brightness maximum of light-emitting window
1uW。
Summary of the invention
The object of the present invention is to provide a kind of gold-plated integrating sphere light source of vacuum infrared, solve in infrared and far infrared band
Cryogenic vacuum scaling light source the problem of, the present invention is by the system architecture of primary and secondary integrating sphere, twice by size integrating sphere
It homogenizes, realizes the high uniformity of output light source, including surface uniformity and angle uniformity.Pass through the comparison of a variety of infrared light supplies
And test, the infrared carbon fiber strip lamp of high stability is finally used, instability is better than 1 ‰, realizes the stabilization of output light source
Property；By using electronic diaphragm, the approximately linears such as 12.5%, 25%, 37.5%, 50%, 62.5%, 75%, 87.5%, 100% are realized
Output, realize outgoing light source broad tuning；By carrying out the refrigeration of 300K to bulbec, to the refrigeration of mother bulb 193K, realization
Inhibition to background reduces the heat hair radiation of itself.
The present invention is achieved by the following technical solutions:
The gold-plated integrating sphere light source of vacuum infrared, it is characterised in that: include mother bulb and several bulbecs, be placed in bulbec infrared
Illuminating source, each bulbec pass through respectively on the mother bulb opening flange that bulbec flange is mounted on, bulbec, mother bulb interface open up
Have an opening of same diameter, the interface of mother bulb be respectively positioned on before mother bulb on hemisphere and mother bulb opening flange welding mother bulb interface
Locate, hemisphere is equipped with light-emitting window before mother bulb, and bulbec has gap with the place of docking of mother bulb, is equipped with electronic diaphragm in the gap, leads to
Cross the opening and closing for moving horizontally realization bulbec, the opening of mother bulb for controlling electronic diaphragm.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the mother bulb includes mother bulb copper ball shell, blister copper
Pipe, mother bulb Stainless Steel Spherical Shell Punch, offer light-emitting window on mother bulb copper ball shell, the internal diameter 600mm of mother bulb, the outer diameter 12mm of blister copper pipe,
Wall thickness 1mm, blister copper pipe are spirally coiled in the outer surface of mother bulb copper ball shell and blister copper pipe point are welded in mother bulb by argon arc welding mode
On copper ball shell, then the binding site melted in blister copper pipe and mother bulb copper ball shell is burnt with scolding tin, increase blister copper pipe and mother bulb copper ball shell
Contact area improves thermal conductivity；The mother bulb Stainless Steel Spherical Shell Punch is located at the rear quarter that coiling has the mother bulb copper ball shell of blister copper pipe
Outside；The blister copper pipe leads to refrigerant and freezes to mother bulb, and the cryogenic temperature of mother bulb is -80 ± 2 DEG C.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the number of the bulbec is four, and bulbec includes
Bulbec copper ball shell, thin copper pipe, bulbec Stainless Steel Spherical Shell Punch, the internal diameter 150mm of bulbec, outer diameter 6.35mm, the wall thickness 1mm of thin copper pipe,
Thin copper pipe is spirally coiled in the outer surface of bulbec copper ball shell and thin copper pipe point is welded on bulbec copper ball shell by argon arc welding mode,
The binding site melted in thin copper pipe and bulbec copper ball shell is burnt with scolding tin again, increases the contact area of thin copper pipe Yu bulbec copper ball shell,
Improve thermal conductivity；The bulbec Stainless Steel Spherical Shell Punch, which is located at coiling, to be had outside the bulbec copper ball shell of thin copper pipe；The logical system of the thin copper pipe
Cold medium freezes to bulbec, and the cryogenic temperature of bulbec is 0 DEG C；The thin copper pipe of each bulbec constitutes a refrigerating circuit, respectively
The thin copper pipe of a bulbec is arranged in above mother bulb flange after being extended respectively by tube, and towards mother bulb rear quarter.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the infraluminescence placed in four bulbecs
Light source is the infrared ray carbon fiber strip lamp of racket-shaped, power 1000W；The infrared ray carbon fiber strip lamp is fixed on lamp holder,
Lamp holder is fixed on bulbec flange, and the power supply lead wire of infrared ray carbon fiber strip lamp is drawn from lamp holder, power supply lead wire and the external world
DC current stabilized power supply connection.The not aperture on small integrating sphere spherical shell ensure that the integrality and uniformity of bead；Carbon fiber heating
Lamp is better than 1 ‰ using accurate DC power control, temperature stability.Using the framework of primary and secondary integrating sphere, by even light twice,
It ensure that the uniformity of emergent light.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the bulbec and the centre of sphere distance of mother bulb are less than
Or the sum of the outer radius equal to two balls.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: pass through shot-peening inside four bulbecs and mother bulb
The processing of coarse and vacuum metallizing, ensure that the multiple diffusing reflection of infrared light, by integrating sphere lambert's body homogenization, reaches system
Uniformity index；The shot that four bulbecs and mother bulb inner wall are all made of the roughness suitable for infrared band carries out at shot-peening
And then reason carries out vacuum metallizing film process later, improves the reflectivity of the diffusing reflection coating of inner wall.It is infrared anti-after gold-plated film
The rate of penetrating can achieve 95% or more, better than about the 80% of plated film.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: each bulbec passes through 4 pillars and mother bulb respectively
Be open flange installation connection, and the gap of 4-5mm is kept between mother bulb opening flange.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: be arranged on the bulbec flange of each bulbec
Temperature point, 12 temperature points are distributed in the rear quarter of mother bulb, preceding hemisphere spare bits set and are disposed with 4 temperature points, can be with
The temperature of real-time monitoring bulbec and mother bulb.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the electronic diaphragm includes gold-plated aperture plate, knot
Structure ontology, ceramic bearing, cylindrical guide, trapezoidal screw, square nut, shaft coupling, vacuum motor, the vacuum motor, ceramics
Bearing is separately mounted to the both ends end of structural body, be equipped with cylindrical guide and trapezoidal screw in parallel in structural body, trapezoidal
One end of lead screw is mounted on ceramic bearing, and square nut is fitted on cylindrical guide and trapezoidal screw, and vacuum motor is logical
It crosses shaft coupling and the trapezoidal screw other end to be sequentially connected, gold-plated aperture plate is mounted on square nut, and gold-plated aperture plate can be with
Square nut moves in the gap between bulbec and mother bulb opening flange；The structural body is mounted on mother bulb opening flange
On, vacuum motor, which is located at, influences light out this avoid towards mother bulb light-emitting window direction close to one end of mother bulb flange.Design
Electronic diaphragm, ensure that bulbec is tangential on the surface of mother bulb, reduce the centre of sphere away from further ensuring the uniform of light source transmitting
Property, it is opened and closed by the linear steps of gold-plated aperture plate, realizes the broad tuning adjustment of emergent light.
The gold-plated integrating sphere light source of the vacuum infrared, it is characterised in that: the shape of the gold-plated aperture plate be kitchen knife form,
With a thickness of 2mm, the size of the blade part of gold-plated aperture plate is greater than the opening size of son, mother bulb.Because bulbec and mother bulb pass through 4
Root pillar is connected and fixed, and in order to avoid this 4 pillars, gold-plated aperture plate is made into " kitchen knife " shape and mother bulb opening flange is adopted
With the asymmetric installation in side, can guarantee not influenced by installation pillar in the stroke of aperture plate in this way.
Advantages of the present invention:
The present invention solve the problems, such as in infrared and far infrared band cryogenic vacuum scaling light source, system uses S Φ 600mm
Gold-plated copper ball, realize bigbore light source output, the diameter of light-emitting window is Φ 250mm；Pass through the system of primary and secondary integrating sphere
Framework realizes the high uniformity of output light source, including surface uniformity and even angle by homogenizing twice for size integrating sphere
Property；By the comparison and test of a variety of infrared light supplies, the infrared carbon fiber strip lamp of high stability is finally used, instability is better than
1 ‰, realize the stability of output light source；By using electronic diaphragm, realize 12.5%, 25%, 37.5%, 50%, 62.5%,
75%, the output of the approximately linears such as 87.5%, 100% realizes the broad tuning of outgoing light source；By the system for carrying out 300K to bulbec
Refrigeration cold, to mother bulb 193K, realizes the inhibition to background, reduces the heat hair radiation of itself.
Detailed description of the invention
Fig. 1 is that the mould of electronic diaphragm fills figure；
Fig. 2 is that composite ball of the invention connects cross-sectional view；
Fig. 3 is that composite ball mould of the invention fills figure；
Fig. 4 is the total mould dress figure of system of the invention；
Fig. 5 is that rear quarter mould of the invention fills figure.
Wherein: the gold-plated aperture plate of A1, A2 structural body, A3 ceramic bearing, A4 cylindrical guide, A5 trapezoidal screw, A6 are rectangular
Nut, A7 shaft coupling, A8 vacuum motor；B1 bulbec copper ball shell, the thin copper pipe of B2, B3 bulbec Stainless Steel Spherical Shell Punch, B4 bulbec flange,
B5 mother bulb is open flange, B6 mother bulb copper ball shell, B7 as blister copper pipe, mother bulb Stainless Steel Spherical Shell Punch B8；The electronic diaphragm of C1, C2 pillar, C3
Light-emitting window, C4 integrate ball stand, C5 mother bulb flange；D1 temperature point；Mother bulb 1, bulbec 2.
Specific embodiment
As shown in Figs. 1-5, the gold-plated integrating sphere light source of vacuum infrared includes mother bulb 1 and four bulbecs 2, places in bulbec 2
There is infraluminescence light source, each bulbec 2 is open on flange B5 by the mother bulb that bulbec flange B4 is mounted on respectively, bulbec 2, mother bulb 1
Interface offer the opening of same diameter, the interface of mother bulb 1 is respectively positioned on before mother bulb on hemisphere and mother bulb opening flange
B5 is welded on the interface of mother bulb 1, and hemisphere is equipped with light-emitting window C3 before mother bulb, and bulbec has gap with the place of docking of mother bulb, described
It is equipped with electronic diaphragm C1 in gap, realizes bulbec 2, the opening of the opening of mother bulb 1 by controlling moving horizontally for electronic diaphragm C1
And closing.Mother bulb 2 is fixed on integral ball stand C4.
Mother bulb 1 includes mother bulb copper ball shell B6, blister copper pipe B7, mother bulb Stainless Steel Spherical Shell Punch B8, is opened up on mother bulb copper ball shell B6
There are light-emitting window C3, outer diameter 12mm, the wall thickness 1mm of the internal diameter 600mm of mother bulb 1, blister copper pipe B7, blister copper pipe B7 is spirally coiled in mother bulb
Blister copper pipe B7 point is simultaneously welded on mother bulb copper ball shell B6 by argon arc welding mode by the outer surface of copper ball shell B6, then is melted with scolding tin burning
The binding site of blister copper pipe B7 and mother bulb copper ball shell B6, increase the contact area of blister copper pipe B7 and mother bulb copper ball B6 shell, and raising is led
It is hot；The mother bulb Stainless Steel Spherical Shell Punch B8, which is located at coiling, to be had outside the rear quarter of mother bulb copper ball shell B6 of blister copper pipe B7；It is described thick
Copper pipe B7 leads to refrigerant and freezes to mother bulb 1, and the cryogenic temperature of mother bulb 1 is -80 ± 2 DEG C.
Bulbec 2 includes bulbec copper ball shell B1, thin copper pipe B2, bulbec Stainless Steel Spherical Shell Punch B3, the internal diameter 150mm of bulbec 1, thin copper
The outer diameter 6.35mm of pipe B2, wall thickness 1mm, thin copper pipe B2 are spirally coiled in the outer surface of bulbec copper ball shell B1 and by argon arc welding sides
Thin copper pipe B2 point is welded on bulbec copper ball shell B1 by formula, then is melted with scolding tin burning in the engaging portion of thin copper pipe B2 and bulbec copper ball shell B1
Position increases the contact area of thin copper pipe B2 Yu bulbec copper ball shell B1, improves thermal conductivity；The bulbec Stainless Steel Spherical Shell Punch B3 is located at
Coiling has outside the bulbec copper ball shell B1 of thin copper pipe B2；The thin copper pipe B2 leads to refrigerant and freezes to bulbec 2, bulbec 2
Cryogenic temperature is 0 DEG C；The thin copper pipe B2 of each bulbec 2 constitutes a refrigerating circuit, and the thin copper pipe B2 of each bulbec 2 passes through respectively
Tube is arranged in above mother bulb flange C5 after extending, and towards 2 rear quarter of mother bulb.
The infraluminescence light source placed in four bulbecs 2 is the infrared ray carbon fiber strip lamp of racket-shaped, power 1000W；
The infrared ray carbon fiber strip lamp is fixed on lamp holder, and lamp holder is fixed on bulbec flange B4, the electricity of infrared ray carbon fiber strip lamp
Source lead is drawn from lamp holder, and power supply lead wire is connect with extraneous DC current stabilized power supply.The not aperture on small integrating sphere spherical shell is protected
The integrality and uniformity of bead are demonstrate,proved；Carbon fiber heater lamp is better than using accurate DC power control, temperature stability
1‰.The uniformity of emergent light ensure that by even light twice using the framework of primary and secondary integrating sphere.
The centre of sphere of bulbec 2 and mother bulb 1 distance is less than or equal to the sum of the outer radius of two balls.
It is handled by shot-peening is coarse with vacuum metallizing inside four bulbecs 2 and mother bulb 1, ensure that the multiple unrestrained of infrared light
Reflection, by integrating sphere lambert's body homogenization, reaches the uniformity index of system；Four bulbecs and mother bulb inner wall are all made of suitable
The shot of roughness for infrared band carries out bead, and then carries out vacuum metallizing film process later, improves inner wall
Diffusing reflection coating reflectivity.Infrared reflectivity after gold-plated film can achieve 95% or more, better than about the 80% of plated film.
Each bulbec 2 is open flange B5 installation connection by 4 pillar C2 and mother bulb respectively, and is open flange B5 with mother bulb
Between keep 4-5mm gap.
Electronic diaphragm include gold-plated aperture plate A1, structural body A2, ceramic bearing A3, cylindrical guide A4, trapezoidal screw A5,
Square nut A6, shaft coupling A7, vacuum motor A8, the vacuum motor A8, ceramic bearing A3 are separately mounted to structural body A2
Both ends end, cylindrical guide A4 and trapezoidal screw A5, one end installation of trapezoidal screw A5 are installed in parallel on structural body A2
On ceramic bearing A3, square nut A6 is fitted on cylindrical guide A4 and trapezoidal screw A5, and vacuum motor A8 passes through connection
Axis device A7 and the trapezoidal screw A5 other end are sequentially connected, and gold-plated aperture plate A1 is mounted on square nut A6, gold-plated aperture plate A1
It can be moved in the gap between bulbec 2 and mother bulb opening flange B5 with square nut A6；The structural body A2 is mounted on
Mother bulb is open on flange B5, and vacuum motor A8 is located at close to one end of mother bulb flange C5, and this avoid towards mother bulb light-emitting window
Direction influences light out.The electronic diaphragm of design ensure that bulbec is tangential on the surface of mother bulb, reduce the centre of sphere away from being further ensured that
The uniformity of light source transmitting is opened and closed by the linear steps of gold-plated aperture plate, realizes the broad tuning tune of emergent light
It is whole.
The shape of gold-plated aperture plate A1 is kitchen knife form, with a thickness of 2mm, and the size of the blade part of gold-plated aperture plate A1 is greater than
The opening size of son, mother bulb.Because bulbec 2 and mother bulb 1 are connected and fixed by 4 pillar C2, in order to avoid this 4 pillar C2,
Gold-plated aperture plate A1 is made into " kitchen knife " shape and mother bulb opening flange B5 using the asymmetric installation in side, can be guaranteed in this way
It is not influenced by installation pillar in the stroke of aperture plate.
Electronic aperture plate A1 is among the gap of interface 4-5mm of primary and secondary integrating sphere, can be moved back and forth, and realizes diaphragm
The opening and closing of plate, vacuum motor A8 can be controlled by external lead wire by computer, the stepper motor under driving pulse effect
Desired rotational angle and speed can be realized under driving instruction effect with positive and negative rotation, motor rotation passes through shaft coupling A7 band
Dynamic trapezoidal screw A5 rotation, square nut A6 and trapezoidal screw A5 are relatively rotated, and cylindrical guide A4 limits square nut A6's
Rotation, translate it can only along the direction cylindrical guide A4, gold-plated aperture plate A1, square nut A6 is fixed with below square nut A6
Translation drives moving horizontally for gold-plated aperture plate A1, not only realizes the opening and closing of aperture plate, also achieves aperture plate
In the stopping of different location, such as 20%, 40%, 50%, 60%, 80%, 100%, driving pulse can accomplish 8 subdivisions, even 16 carefully
Point, screw thread is also accurate T6*1, screw pitch 1mm, therefore accomplishes that these stop positions are not difficult, if there are also motor desynchronizings etc.
Situation can be corrected by the optoelectronic switch of one end.
As shown in Figure 1, the size of gold-plated aperture plate A1 is 80*80mm, bulbec 2, mother bulb 1 and mother bulb interface flange B5 are opened
Mouthful be φ 75, the stroke of gold-plated aperture plate A1 is 80mm, in this way when square nut A6 at one end when, gold-plated aperture plate A1 is being opened
When mouth center, respectively there are about 2.5mm surpluses on both sides, and when square nut A6 is moved to the other end, gold-plated aperture plate A1 is whole
Opening is removed, is not blocked by any.By process control, gold-plated aperture plate A1 can be allowed to open 12.5% respectively, 25%, 37.5%,
50%, 62.5%, 75%, 87.5%, 100%, certainly, if pursuit is linear better, the opening of integrating sphere is uniformly split into square hole
It is possible.Key is to design through this structure, is successfully realized the minim gap in the 4-5mm of integrating sphere opening
Under, with remote electrically controlled method instead of the operation of similar manpower, realize blocking and opening for aperture plate, structure and action part
It is grown in except composite ball mating interface completely, meets the index of integrating sphere uniformity.Because if the thickness of automatically controlled diaphragm
Increase, can directly increase the centre of sphere distance of primary and secondary integrating sphere, the uniformity of integrating sphere will decline.
As shown in Fig. 2, from the point of view of composite ball cuts section, among the docking gap of 4-5mm, thick gold-plated of only 2mm
Other things are not present in aperture plate A1, effectively reduce the centre of sphere of bulbec and mother bulb in this way away from substantially accomplishing the complete phase of bulbec
It is cut in the ball surface of mother bulb, increases the uniformity of mother bulb, and this is the more crucial index of the optical property of mother bulb.
As shown in figure 3, gap of the gold-plated aperture plate A1 between bulbec 2 and mother bulb opening flange B5 moves back and forth, it is gold-plated
The thickness of aperture plate A1 is 2mm, is moved in the gap of 4-5mm, and gold-plated aperture plate A1 uses " hilt " form, is effectively shielded from
The influence of bulbec pillar C2, electronic diaphragm C1 are fixed on the side of mother bulb opening flange B5.
As shown in figure 4, four bulbecs, each bulbec pass through 4 pillar C2 and are fixed on mother bulb opening flange B5 altogether,
Adjustable diaphragm C1 is fixed on the side of opening flange B5, and all electronic diaphragm C1 are all made of arranged counterclockwise mode, all
Vacuum motor is towards mother bulb flange direction, and adjustable diaphragm is controlled by computer, thus it is possible to vary bulbec openings of sizes realizes out
Penetrate the broad tuning of light source.When with vacuum tank abutting joint, light-emitting window C3 central point and the centre of sphere are respectively positioned on the axis of vacuum tank cylinder
On.Thin copper pipe and blister copper pipe are extended to above mother bulb flange by tube welding, all towards mother bulb rear quarter, copper pipe end
VCR metal joint is welded at end, can be convenient and docks with vacuum tank, connects the high-power refrigeration machine of outside, realizes to composite ball
The temperature control of copper ball shell temperature.
As shown in figure 5, temperature point D1 is arranged on the bulbec flange B4 of each bulbec 2, the rear quarter distribution of mother bulb 1
There are 12 temperature point D1, preceding hemisphere spare bits to set and be disposed with 4 temperature point D1, the temperature of bulbec and mother bulb can be monitored in real time
Degree.
Claims (10)
1. the gold-plated integrating sphere light source of vacuum infrared, it is characterised in that: include mother bulb and several bulbecs, be placed in bulbec red
Outer illuminating source, each bulbec pass through respectively on the mother bulb opening flange that bulbec flange is mounted on, bulbec, mother bulb interface open
Opening equipped with same diameter, the interface of mother bulb is respectively positioned on before mother bulb on hemisphere and mother bulb opening flange welding connecing in mother bulb
At mouthful, hemisphere is equipped with light-emitting window before mother bulb, and bulbec has gap with the place of docking of mother bulb, is equipped with electronic diaphragm in the gap,
By the opening and closing for moving horizontally realization bulbec, the opening of mother bulb for controlling electronic diaphragm.
2. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: the mother bulb includes mother bulb
Copper ball shell, blister copper pipe, mother bulb Stainless Steel Spherical Shell Punch offer light-emitting window, the internal diameter 600mm of mother bulb, blister copper pipe on mother bulb copper ball shell
Outer diameter 12mm, wall thickness 1mm, blister copper pipe is spirally coiled in the outer surface of mother bulb copper ball shell and by argon arc welding mode by blister copper pipe
Point is welded on mother bulb copper ball shell, then the binding site melted in blister copper pipe and mother bulb copper ball shell is burnt with scolding tin；The mother bulb stainless steel
Spherical shell, which is located at coiling, to be had outside the rear quarter of mother bulb copper ball shell of blister copper pipe；The blister copper pipe leads to refrigerant to mother bulb system
Cold, the cryogenic temperature of mother bulb is -80 ± 2 DEG C.
3. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: the number of the bulbec is four
A, bulbec includes bulbec copper ball shell, thin copper pipe, bulbec Stainless Steel Spherical Shell Punch, the internal diameter 150mm of bulbec, the outer diameter of thin copper pipe
6.35mm, wall thickness 1mm, thin copper pipe are spirally coiled in the outer surface of bulbec copper ball shell and by argon arc welding mode by thin copper pipe spot welding
On bulbec copper ball shell, then the binding site melted in thin copper pipe and bulbec copper ball shell is burnt with scolding tin；The bulbec Stainless Steel Spherical Shell Punch
Being located at coiling has outside the bulbec copper ball shell of thin copper pipe；The thin copper pipe leads to refrigerant and freezes to bulbec, the system of bulbec
Cold temperature is 0 DEG C；The thin copper pipe of each bulbec constitutes a refrigerating circuit, and the thin copper pipe of each bulbec is extended by tube respectively
It is arranged in above mother bulb flange afterwards, and towards mother bulb rear quarter.
4. the gold-plated integrating sphere light source of vacuum infrared according to claim 3, it is characterised in that: placed in four bulbecs
Infraluminescence light source be racket-shaped infrared ray carbon fiber strip lamp, power 1000W；The infrared ray carbon fiber strip lamp is fixed
On lamp holder, lamp holder is fixed on bulbec flange, and the power supply lead wire of infrared ray carbon fiber strip lamp is drawn from lamp holder, power supply lead wire
It is connect with extraneous DC current stabilized power supply.
5. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: the ball of the bulbec and mother bulb
Heart distance is less than or equal to the sum of the outer radius of two balls.
6. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: inside four bulbecs and mother bulb
Handled by shot-peening is coarse with vacuum metallizing.
7. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: each bulbec passes through 4 respectively
Root pillar and mother bulb opening flange installation connection, and be open mother bulb and keep the gap of 4-5mm between flange.
8. the gold-plated integrating sphere light source of vacuum infrared according to claim 1, it is characterised in that: the bulbec flange of each bulbec
On be arranged with temperature point, 12 temperature points are distributed in the rear quarter of mother bulb, preceding hemisphere spare bits set and are disposed with 4 temperature
The temperature of bulbec and mother bulb can be monitored in real time in measuring point.
9. the gold-plated integrating sphere light source of vacuum infrared according to claim 7, it is characterised in that: the electronic diaphragm includes plating
Golden aperture plate, structural body, ceramic bearing, cylindrical guide, trapezoidal screw, square nut, shaft coupling, vacuum motor, it is described true
Empty motor, ceramic bearing are separately mounted to the both ends end of structural body, be equipped with cylindrical guide and ladder in parallel in structural body
One end of shape lead screw, trapezoidal screw is mounted on ceramic bearing, and square nut is fitted on cylindrical guide and trapezoidal screw,
Vacuum motor is sequentially connected by shaft coupling and the trapezoidal screw other end, and gold-plated aperture plate is mounted on square nut, plates golden light
Late plate can move in the gap between bulbec and mother bulb opening flange with square nut；The structural body is mounted on mother bulb
It is open on flange, vacuum motor is located at close to one end of mother bulb flange.
10. the gold-plated integrating sphere light source of vacuum infrared according to claim 9, it is characterised in that: the gold-plated aperture plate
Shape is kitchen knife form, with a thickness of 2mm, and the size of the blade part of gold-plated aperture plate is greater than the opening size of son, mother bulb.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111404604A (en) * | 2020-03-06 | 2020-07-10 | 杭州高烯科技有限公司 | Intermediate infrared communication device |
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| CN110186558B (en) | 2021-08-31 |
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