CN110146465A - A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device - Google Patents
A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device Download PDFInfo
- Publication number
- CN110146465A CN110146465A CN201910359386.8A CN201910359386A CN110146465A CN 110146465 A CN110146465 A CN 110146465A CN 201910359386 A CN201910359386 A CN 201910359386A CN 110146465 A CN110146465 A CN 110146465A
- Authority
- CN
- China
- Prior art keywords
- sphere
- sample
- optical integrating
- detachable
- ontology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 121
- 238000000985 reflectance spectrum Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000001228 spectrum Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000000411 transmission spectrum Methods 0.000 claims description 3
- 230000004043 responsiveness Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 27
- 239000007787 solid Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001328 terahertz time-domain spectroscopy Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- 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
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- 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
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
- G01N21/3586—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention belongs to spectra collection technical fields, more particularly to a kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device, wherein, the optical integrating-sphere includes optical integrating-sphere ontology, entrance window and exit window on the optical integrating-sphere ontology, and the detachable reflected sample rack with the optical integrating-sphere body fits；The detachable reflected sample rack is for placing sample to be tested；The entrance window irradiates the sample to be tested placed on detachable reflected sample rack for thz beam to be incident in optical integrating-sphere ontology, generates sample light；The sample light projects after the optical integrating-sphere ontology diffusing reflection from the exit window of the optical integrating-sphere ontology；To reduce responsiveness difference interference caused by test result of sample morphology, terahertz light harness shape and terahertz detection antenna different location to the greatest extent, the collecting efficiency of sample to be tested Terahertz reflectance spectrum and the accuracy of test result are improved.
Description
Technical field
The invention belongs to spectra collection technical field more particularly to a kind of optical integrating-spheres and sample Terahertz reflectance spectrum
Acquisition device.
Background technique
Traditional terahertz time-domain spectroscopy instrument (THz-TDS) is when carrying out reflectance spectrum test to sample to be tested, to be measured
The flatness and shape need of sample surfaces are higher, need to carry out sample to be tested perfect pre-treatment before test, can just collect
More accurate terahertz light spectrum signal.For example, generally requiring when the sample to be tested is the sample to be tested of solid forms to this
Sample to be tested cleaned, grind into powder and is sieved, and obtains subtle sample powder, then sample powder and dopant are carried out
Mixing, is tuned into the sample determinand of different proportion；Then, using tablet press machine be compressed into regular shape, surfacing it is thin
Piece just can be carried out reflectance spectrum test.Entire sample pretreatment process step is various, and time-consuming, is easily introduced impurity pollution, and not
Conducive to the substance of the difficult grinding of test.
In addition to this, when spectrum test terahertz light harness shape and terahertz detection antenna different location responsiveness difference
Also the collecting efficiency of Terahertz reflectance spectrum and the accuracy of test result be will affect.
Therefore, the Terahertz reflectance spectrum collecting efficiency of existing sample to be tested and the accuracy of test result are vulnerable to sample
The influence of form, the responsiveness difference of terahertz light harness shape and terahertz detection antenna different location, is easy that there are terahertzs
Hereby spectra collection low efficiency, the larger problem of test result error.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device,
The Terahertz reflectance spectrum collecting efficiency of sample to be tested and the accuracy of test result be can solve vulnerable to sample morphology, Terahertz
The influence of the responsiveness difference of beam shape and terahertz detection antenna different location, there are the acquisitions of Terahertz reflectance spectrum to imitate
Rate is low, the larger problem of test result error.
First aspect of the embodiment of the present invention provides a kind of optical integrating-sphere, comprising: optical integrating-sphere ontology is set to the light
The entrance window and exit window on integrating sphere ontology are learned, and is put with the detachable reflected sample of the optical integrating-sphere body fits
Set frame；
The detachable reflected sample rack is for placing sample to be tested；
The entrance window is for thz beam to be incident in the optical integrating-sphere ontology；The thz beam shines
The sample to be tested placed on the detachable reflected sample rack is penetrated, sample light is generated；The sample light is through optics product
It is projected after bulb separation ontology diffusing reflection from the exit window of the optical integrating-sphere ontology.
Optionally, it offers on the optical integrating-sphere ontology for installing opening for the detachable reflected sample rack
Slot；When carrying out the acquisition of sample to be tested reflectance spectrum, the detachable reflected sample rack is mounted on the fluting.
Optionally, the optical integrating-sphere further includes putting with the detachable transmission sample of the optical integrating-sphere body fits
Set frame and detachable blank；The detachable transmission sample rack is for placing sample to be tested；
The detachable blank and the detachable reflected sample rack are in the installation position of the optical integrating-sphere ontology
It sets identical；
When carrying out sample transmission spectra collection, the detachable transmission sample rack and the detachable blank installation
On the optical integrating-sphere ontology；When carrying out sample reflectance spectrum acquisition, the detachable reflected sample rack installation
On the optical integrating-sphere ontology.
Optionally, the material for preparing of the entrance window and the exit window is polythene material.
Optionally, the exit window is additionally provided with iris diaphgram.
Optionally, the optical integrating-sphere ontology is additionally provided with air inlet and air outlet.
Optionally, the air inlet and air outlet are separately provided for the electronic valve that control gas circulation or closed,
And the flow sensor for detection gas uninterrupted；It is additionally provided in the optical integrating-sphere ontology described for detecting
The baroceptor of the intrinsic atmospheric pressure value of optical integrating-sphere, and with the baroceptor, the electronic valve and described
The gas pressure regulator of flow sensor connection；
The gas pressure regulator receives the atmospheric pressure value that the baroceptor detects and flow sensor detection
The gas flow size arrived, and the atmospheric pressure value that the baroceptor detects is compared with preset pressure value, output electricity
Sub- valve control signal, to control the gas flow size of the electronic valve.
Optionally, the air inlet is the air inlet of one-way ventilating；The gas outlet is the gas outlet of one-way ventilating.
Optionally, the optical integrating-sphere further includes temperature controller and/or humidity controller.
Second aspect of the embodiment of the present invention provides a kind of sample Terahertz reflectance spectrum acquisition device, including above-mentioned first party
Optical integrating-sphere described in face and laser light source, beam splitter, terahertz emission antenna and terahertz detection antenna；
The laser of the laser light source transmitting is divided into detection light and pump light through the beam splitter；
The detection light emission enters the terahertz detection antenna；
The pump light exposes on the terahertz emission antenna and is emitted thz beam；The thz beam is through institute
The entrance window for stating optical integrating-sphere ontology is incident in the optical integrating-sphere ontology, and is irradiated the detachable reflected sample and put
The sample to be tested placed on frame is set, sample light is generated；The sample light is after the optical integrating-sphere ontology diffusing reflection from described
The exit window of optical integrating-sphere ontology injects the terahertz detection antenna；The terahertz detection antenna receives the detection light
With the sample light projected from the exit window, the corresponding terahertz light spectrum signal of the sample to be tested is generated.
In the embodiment of the present invention, by the way that thz beam is incident in the optical integrating-sphere ontology, and described in irradiation
The sample to be tested placed on detachable reflected sample rack, generates sample light, and makes the sample light by optics product
It is projected after the diffusing reflection of bulb separation ontology from the exit window of the optical integrating-sphere ontology, so that the sample projected from the exit window
Light is the optical signal after optical integrating-sphere ontology homogenization, can reduce sample morphology, Terahertz to the greatest extent
The responsiveness difference of beam shape and terahertz detection antenna different location is interfered caused by test result, and can not
It needs to carry out sample to be tested many and diverse pre-treatment, improves the collecting efficiency and test knot of sample to be tested Terahertz reflectance spectrum
The accuracy of fruit.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the first structure diagram of optical integrating-sphere provided in an embodiment of the present invention；
Fig. 2 is the second structural schematic diagram of optical integrating-sphere provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of solid rack and detachable fence frame provided in an embodiment of the present invention；
Fig. 4 is the third structural schematic diagram of optical integrating-sphere provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of sample Terahertz reflectance spectrum acquisition device provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, being a kind of first structure diagram of optical integrating-sphere provided in an embodiment of the present invention, the optics
Integrating sphere includes: optical integrating-sphere ontology 1, entrance window 1-1 and exit window 1-2 on the optical integrating-sphere ontology, with
And the detachable reflected sample rack 1-31 with the optical integrating-sphere body fits.The detachable reflected sample rack
1-31 is for placing sample to be tested；The entrance window 1-1 is for thz beam to be incident in the optical integrating-sphere ontology；
The thz beam irradiates the sample to be tested placed on the detachable reflected sample rack 1-31, generates sample light；Institute
Sample light is stated to project after the optical integrating-sphere ontology diffusing reflection from the exit window 1-2 of the optical integrating-sphere ontology, so that
The sample light projected from the exit window is the optical signal after optical integrating-sphere ontology homogenization, can be utmostly
The responsiveness difference for reducing sample morphology, terahertz light harness shape and terahertz detection antenna different location to test result
Caused by interfere, and can not need to carry out sample to be tested many and diverse pre-treatment, improve the reflection of sample to be tested Terahertz
The collecting efficiency of spectrum and the accuracy of test result.
Optionally, in certain embodiments of the present invention, it can also offer and be used on the optical integrating-sphere ontology
The fluting of the detachable reflected sample rack is installed；It is described detachable anti-when carrying out the acquisition of sample to be tested reflectance spectrum
Sample rack is penetrated to be mounted on the fluting.
That is, when carrying out the acquisition of sample to be tested Terahertz reflectance spectrum, the detachable reflected sample rack
It may be mounted on the fluting；When terminating sample to be tested Terahertz reflectance spectrum acquisition, the detachable reflection sample
Product rack can take apart from the fluting.
For example, when terminating sample to be tested Terahertz reflectance spectrum acquisition, the detachable reflected sample rack
After can taking apart from the fluting, detachable blank can be installed on the fluting.
Optionally, as shown in Fig. 2, the optical integrating-sphere can also include with the optical integrating-sphere body fits can
Dismantle transmission sample rack 1-32 and detachable blank 1-33；The detachable transmission sample rack 1-32 for place to
Sample.
The detachable blank 1-33 and the detachable reflected sample rack 1-31 are in the optical integrating-sphere ontology
Installation site it is identical；When carrying out sample transmission spectra collection, the detachable transmission sample rack 1-32 and it is described can
Disassembly blank 1-33 is mounted on the optical integrating-sphere ontology；It, only will be described removable when carrying out sample reflectance spectrum acquisition
Reflected sample rack 1-31 is unloaded to be mounted on the optical integrating-sphere ontology, the detachable transmission sample rack 1-32 and
The detachable blank 1-31 does not need to be mounted on the optical integrating-sphere ontology.
Wherein, the sample to be tested can be solid sample to be tested, or fluid test sample.
Optionally, as shown in figure 3, the detachable transmission sample rack may include that the solid equipped with transmissive window is placed
Frame 1-32-1.
Particle or powder sample can be placed at the center empty slot of the solid rack 1-32-1, before being tested
Compressing tablet process, have the characteristics that convenient and efficient.
Optionally, as shown in figure 3, the detachable transmission sample rack can also include being located at the solid rack
Detachable fence frame 1-32-2 on 1-32-1.
It, can when the sample to be tested is liquid, also, in the Terahertz transmitted spectrum acquisition for carrying out the sample to be tested
To place the transmitted spectrum test that different size of liquid cell carries out fluid test sample in the detachable fence frame 1-32-2.
And when the sample to be tested is solid, it, then can will also, in the Terahertz transmitted spectrum acquisition for carrying out the sample to be tested
The detachable fence frame 1-32-2 is removed from the solid rack 1-32-1, to place different size of solid sample,
So that sample to be tested is not necessarily to the compressing tablet process before being tested, has the characteristics that convenient and efficient.
Optionally, in certain embodiments of the present invention, the entrance window, exit window and transmissive window to prepare material equal
For the polythene material of high-purity, to reduce loss of the window to THz wave to the greatest extent.
Optionally, in certain embodiments of the present invention, the exit window is additionally provided with iris diaphgram, so as to according to survey
Examination needs to adjust the power of diaphragm size control signal.
Optionally, in certain embodiments of the present invention, as shown in figure 4, the optical integrating-sphere ontology is additionally provided with
Air inlet 1-4 and gas outlet 1-5.
In some embodiments of the present invention, when carrying out the acquisition of sample to be tested Terahertz reflectance spectrum, can first it be arranged
The preset pressure value of the good integrating sphere ontology, and the detachable reflected sample rack is mounted on the optical integrating-sphere
On ontology；Followed by opening the air inlet 1-4 and be passed through clean gas, and open gas outlet 1-5, exclude the integrating sphere sheet
The interference of other internal gases；Then, when the air pressure adjustment in the integrating sphere ontology to the preset pressure value, institute is closed
Air inlet 1-4 and the gas outlet 1-5 are stated, the terahertz light projected at this time from the exit window of the optical integrating-sphere ontology is obtained
Beam, and obtain corresponding terahertz light spectrum signal, as reference signal, finally, by the sample to be tested be placed in it is described can
It dismantles on reflected sample rack 1-31, and generated the sample to be tested through thz beam irradiation by entrance window 1-1
Sample light is incident in the optical integrating-sphere ontology 1, so that the sample light passes through the optical integrating-sphere ontology diffusing reflection
It is projected afterwards from the exit window 1-2 of the optical integrating-sphere ontology 1, obtains the Terahertz reflectance spectrum of the sample to be tested.
In some embodiments of the present invention, when carrying out the acquisition of sample Terahertz transmitted spectrum, first according to sample morphology
(solid or liquid) selects suitable solid rack 1-32-1 and/or detachable fence frame 1-32-2, and is installed in institute
It states on integrating sphere ontology, meanwhile, the detachable blank is installed on the integrating sphere ontology then can be set institute
State the preset pressure value of integrating sphere ontology；Followed by opening the air inlet 1-4 and be passed through clean gas, and open gas outlet 1-
5, exclude the interference of other gases integrating sphere ontology Nei；Then, the air pressure adjustment in the integrating sphere ontology is to described
When preset pressure value, the air inlet 1-4 and the gas outlet 1-5 are closed, is obtained at this time from the optical integrating-sphere ontology
The thz beam that exit window projects, and corresponding terahertz light spectrum signal is obtained, as reference signal, finally, by institute
It states sample to be tested to be placed on the detachable transmission sample rack 1-32, and is passed through the sample to be tested by entrance window 1-1
The sample light that thz beam irradiation generates is incident in the optical integrating-sphere ontology 1, so as to described in sample light process
It is projected after optical integrating-sphere ontology diffusing reflection from the exit window 1-2 of the optical integrating-sphere ontology 1, obtains the sample to be tested
Terahertz transmitted spectrum.
Optionally, the air inlet 1-4 and gas outlet 1-5 is separately provided for the electronics that control gas circulation or closed
Valve, and the flow sensor for detection gas uninterrupted.It is additionally provided in the optical integrating-sphere ontology for examining
Survey the baroceptor of the intrinsic atmospheric pressure value of the optical integrating-sphere, and with the baroceptor, the electronic valve
The gas pressure regulator connected with the flow sensor；The gas pressure regulator receives the air pressure that the baroceptor detects
The gas flow size that value and the flow sensor detect, and the atmospheric pressure value that the baroceptor is detected and pre-
If atmospheric pressure value is compared, electronic valve gate control signal is exported, to control the gas flow size of the electronic valve, to make
The intrinsic atmospheric pressure value of integrating sphere is maintained at the preset pressure value.
Optionally, in order to avoid free exchange occurs for ambient atmos and the intrinsic gas of the integrating sphere, sample is influenced
The acquisition quality of tera-hertz spectra, the air inlet can be set to the air inlet of one-way ventilating；And the gas outlet can also
To be set as the gas outlet of one-way ventilating.
In addition, in certain embodiments of the present invention, as shown in figure 4, the optical integrating-sphere can also include temperature
Controller 1-6 and/or humidity controller 1-7, to adjust the intrinsic temperature and/or humidity of the optical integrating-sphere.
In certain embodiments of the present invention, it is also provided with shadow mask 1-8 in the optical integrating-sphere ontology, with
It prevents from directly projecting too from the exit window of the optical integrating-sphere ontology without the diffusing reflection of the optical integrating-sphere ontology
Hertz light beam brings interference to test result.
As shown in figure 5, the embodiment of the present invention also provides a kind of sample Terahertz reflectance spectrum acquisition device, the sample is too
Hertz reflectance spectrum acquisition device includes the optical integrating-sphere 51 and laser light source 52, beam splitter of the various embodiments described above description
53, terahertz emission antenna 54 and terahertz detection antenna 55；The laser that the laser light source 52 emits is through the beam splitter 53
It is divided into detection light and pump light；The detection light emission enters the terahertz detection antenna 55；The pump light expose to it is described too
Thz beam is emitted on Hertzion radiation antenna 54；Entrance window of the thz beam through the optical integrating-sphere ontology is incident
Extremely in the optical integrating-sphere ontology, and the sample to be tested placed on the detachable reflected sample rack 1-31 is irradiated, it is raw
At sample light；The sample light is penetrated after the optical integrating-sphere ontology diffusing reflection from the exit window of the optical integrating-sphere ontology
Enter the terahertz detection antenna；The sample that the terahertz detection antenna receives the detection light and projects from the exit window
Light generates the corresponding terahertz light spectrum signal of the sample to be tested.
Optionally, the laser light source 52 can be femto-second laser, and the type of the laser is unlimited, as long as can send out
Light pulse is applicable to the present invention out.
Optionally, as shown in figure 5, the beam splitter 53 may include reflector plate 531,533,535 and beam splitting chip 532
With optical delay system 534.
It should be noted that in embodiments of the present invention, the quantity of the reflector plate and position and the beam splitting chip
It can be configured, be merely illustrative herein, not table according to practical application scene with the position of the optical delay system
It is shown as limiting the scope of the invention.For example, the optical delay system may be located on the beam splitting chip 532 with it is described
Between reflector plate 533.
Wherein, the optical delay system 534, which can be one and be fast moved by controlling eyeglass, adjusts optical path difference and is
System, its purpose is to make the terahertz detection antenna 55 simultaneously receive it is described detection light and from the exit window injection
Sample light, to realize the detection light and from relevant effect is generated between the sample light that the exit window projects, to obtain institute
State the terahertz light spectrum information of sample to be tested.
Optionally, the terahertz emission antenna 54 may include the radiating antenna 541, Yi Jiyong for generating thz beam
Paraboloidal mirror 542,543 at the entrance window that the thz beam is focused on the optical integrating-sphere ontology.
It should be noted that in embodiments of the present invention, the quantity of the paraboloidal mirror and position can be according to reality
Application scenarios are configured, and are merely illustrative herein, and limiting the scope of the invention is not expressed as.
As shown in figure 5, in the embodiment of the present invention, beam splitting of the laser through the beam splitter 53 of the transmitting of laser light source 52
Piece 532 is divided into detection light and pump light；The detection light injects the terahertz detection antenna through the optical delay system 534
55；The pump light exposes on the radiating antenna 541 and is emitted thz beam；The thz beam is through the paraboloid
The entrance window through the optical integrating-sphere ontology is incident in the optical integrating-sphere ontology after mirror 542,543 focuses, and is irradiated
The sample to be tested placed on the detachable reflected sample rack generates sample light；The sample light is through the optical integration
The terahertz detection antenna 55 is injected from the exit window of the optical integrating-sphere ontology after ball ontology diffusing reflection；The Terahertz
The sample light that exploring antenna 55 receives the detection light and projects from the exit window, generates the corresponding terahertz of the sample to be tested
Hereby spectral signal.
It should be noted that for convenience of description and succinctly, the sample Terahertz reflectance spectrum in the embodiment of the present invention
The related work process of the specific structure of the optical integrating-sphere of acquisition device and the optical integrating-sphere, can be with reference to aforementioned each
A embodiment, details are not described herein again.
In the embodiment of the present invention, by the way that thz beam is incident in the optical integrating-sphere ontology, and described in irradiation
The sample to be tested placed on detachable reflected sample rack, generates sample light, and makes the sample light by optics product
It is projected after the diffusing reflection of bulb separation ontology from the exit window of the optical integrating-sphere ontology, so that the sample projected from the exit window
Light is the optical signal after optical integrating-sphere ontology homogenization, can reduce sample morphology, Terahertz to the greatest extent
The responsiveness difference of beam shape and terahertz detection antenna different location is interfered caused by test result, and can not
It needs to carry out sample to be tested many and diverse pre-treatment, improves the collecting efficiency and test knot of sample to be tested Terahertz reflectance spectrum
The accuracy of fruit.
In several embodiments provided by the present invention, it should be understood that disclosed optical integrating-sphere and sample terahertz
Hereby reflectance spectrum acquisition device may be implemented in other ways.For example, Installation practice described above is only to show
Meaning property, for example, the division of various components, only a kind of function division, there may be another division manner in actual implementation,
Such as multiple components can be combined or can be integrated into another system, or some features can be ignored.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of optical integrating-sphere characterized by comprising optical integrating-sphere ontology is set on the optical integrating-sphere ontology
Entrance window and exit window, and the detachable reflected sample rack with the optical integrating-sphere body fits；
The detachable reflected sample rack is for placing sample to be tested；
The entrance window is for thz beam to be incident in the optical integrating-sphere ontology；The thz beam irradiates institute
The sample to be tested placed on detachable reflected sample rack is stated, sample light is generated；The sample light is through the optical integrating-sphere
It is projected after ontology diffusing reflection from the exit window of the optical integrating-sphere ontology.
2. optical integrating-sphere as described in claim 1, which is characterized in that offer on the optical integrating-sphere ontology for pacifying
Fill the fluting of the detachable reflected sample rack；When carrying out the acquisition of sample to be tested reflectance spectrum, the detachable reflection
Sample rack is mounted on the fluting.
3. optical integrating-sphere as described in claim 1, which is characterized in that the optical integrating-sphere further includes and the optics is long-pending
The detachable transmission sample rack of bulb separation body fits and detachable blank；The detachable transmission sample rack is for putting
Set sample to be tested；
The installation site phase of the detachable blank and the detachable reflected sample rack in the optical integrating-sphere ontology
Together；
When carrying out sample transmission spectra collection, the detachable transmission sample rack and the detachable blank are mounted on institute
It states on optical integrating-sphere ontology；When carrying out sample reflectance spectrum acquisition, the detachable reflected sample rack is mounted on institute
It states on optical integrating-sphere ontology.
4. optical integrating-sphere as described in claim 1, which is characterized in that the entrance window and the exit window prepare material
It is polythene material.
5. optical integrating-sphere as described in claim 1, which is characterized in that the exit window is additionally provided with iris diaphgram.
6. the optical integrating-sphere as described in claim 1-5 any one, which is characterized in that the optical integrating-sphere ontology is also set
It is equipped with air inlet and air outlet.
7. optical integrating-sphere as claimed in claim 6, it is characterised in that: the air inlet and air outlet are separately provided for
The electronic valve for controlling gas circulation or closing, and the flow sensor for detection gas uninterrupted；The optics product
Be additionally provided with the baroceptor for detecting the intrinsic atmospheric pressure value of the optical integrating-sphere in bulb separation ontology, and with it is described
The gas pressure regulator that baroceptor, the electronic valve are connected with the flow sensor；
The gas pressure regulator receives the atmospheric pressure value that the baroceptor detects and the flow sensor detects
Gas flow size, and the atmospheric pressure value that the baroceptor detects is compared with preset pressure value, export electronic valve
Gate control signal, to control the gas flow size of the electronic valve.
8. optical integrating-sphere as claimed in claim 6, it is characterised in that: the air inlet is the air inlet of one-way ventilating；Institute
State the gas outlet that gas outlet is one-way ventilating.
9. the optical integrating-sphere as described in claim 1-5 any one, it is characterised in that: the optical integrating-sphere further includes temperature
Spend controller and/or humidity controller.
10. a kind of sample Terahertz reflectance spectrum acquisition device, which is characterized in that including such as claim 1-9 any one institute
Optical integrating-sphere and laser light source, beam splitter, terahertz emission antenna and the terahertz detection antenna stated；
The laser of the laser light source transmitting is divided into detection light and pump light through the beam splitter；
The detection light emission enters the terahertz detection antenna；
The pump light exposes on the terahertz emission antenna and is emitted thz beam；The thz beam is through the light
The entrance window for learning integrating sphere ontology is incident in the optical integrating-sphere ontology, and irradiates the detachable reflected sample rack
The sample to be tested of upper placement generates sample light；The sample light is after the optical integrating-sphere ontology diffusing reflection from the optics
The exit window of integrating sphere ontology injects the terahertz detection antenna；The terahertz detection antenna receive the detection light and from
The sample light that the exit window projects, generates the corresponding terahertz light spectrum signal of the sample to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359386.8A CN110146465A (en) | 2019-04-30 | 2019-04-30 | A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359386.8A CN110146465A (en) | 2019-04-30 | 2019-04-30 | A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110146465A true CN110146465A (en) | 2019-08-20 |
Family
ID=67594623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910359386.8A Pending CN110146465A (en) | 2019-04-30 | 2019-04-30 | A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110146465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933262A (en) * | 2021-09-26 | 2022-01-14 | 华太极光光电技术有限公司 | Modular terahertz detection system with selectable functions |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2286311Y (en) * | 1997-01-07 | 1998-07-15 | 铁道部科学研究院通信信号研究所 | Signal lens light transmittance nondestructive detector |
| JP2005172774A (en) * | 2003-12-05 | 2005-06-30 | Semiconductor Res Found | Method and apparatus for measuring physical properties based on catoptric characteristics |
| JP2007033334A (en) * | 2005-07-28 | 2007-02-08 | Hamamatsu Photonics Kk | Sample holder |
| CN204177482U (en) * | 2014-11-18 | 2015-02-25 | 深圳市威福光电科技有限公司 | Based on the changeable reflective portable colour photometer measured with transmission-type |
| CN105424615A (en) * | 2015-12-25 | 2016-03-23 | 杭州远方光电信息股份有限公司 | Measurement device for material optical properties |
| JP2016080497A (en) * | 2014-10-16 | 2016-05-16 | 国立大学法人京都大学 | Detection method of detection object |
| CN105987864A (en) * | 2016-02-24 | 2016-10-05 | 中国科学院合肥物质科学研究院 | Integrating sphere embedded photo-thermal interferential aerosol scattering and absorbing synchronous measurement device |
| CN206177798U (en) * | 2016-11-04 | 2017-05-17 | 天津同阳科技发展有限公司 | Diffuse reflection total mark ball detection device |
| CN106872372A (en) * | 2017-03-17 | 2017-06-20 | 广西电网有限责任公司电力科学研究院 | A kind of constant-temperature integrating sphere device for gas analysis |
| CN107334477A (en) * | 2017-05-02 | 2017-11-10 | 北京理工大学深圳研究院 | A kind of double spectrum noninvasive dynamics monitoring devices |
| CN208270425U (en) * | 2018-05-29 | 2018-12-21 | 天津九光科技发展有限责任公司 | Diffuse reflection spectrum measuring device based on integrating sphere |
| CN109632694A (en) * | 2018-12-26 | 2019-04-16 | 深圳市太赫兹科技创新研究院有限公司 | Tera-hertz spectra test equipment and system |
| CN210108947U (en) * | 2019-04-30 | 2020-02-21 | 深圳市太赫兹科技创新研究院有限公司 | Optical integrating sphere and sample terahertz reflection spectrum acquisition device |
-
2019
- 2019-04-30 CN CN201910359386.8A patent/CN110146465A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2286311Y (en) * | 1997-01-07 | 1998-07-15 | 铁道部科学研究院通信信号研究所 | Signal lens light transmittance nondestructive detector |
| JP2005172774A (en) * | 2003-12-05 | 2005-06-30 | Semiconductor Res Found | Method and apparatus for measuring physical properties based on catoptric characteristics |
| JP2007033334A (en) * | 2005-07-28 | 2007-02-08 | Hamamatsu Photonics Kk | Sample holder |
| JP2016080497A (en) * | 2014-10-16 | 2016-05-16 | 国立大学法人京都大学 | Detection method of detection object |
| CN204177482U (en) * | 2014-11-18 | 2015-02-25 | 深圳市威福光电科技有限公司 | Based on the changeable reflective portable colour photometer measured with transmission-type |
| CN105424615A (en) * | 2015-12-25 | 2016-03-23 | 杭州远方光电信息股份有限公司 | Measurement device for material optical properties |
| CN105987864A (en) * | 2016-02-24 | 2016-10-05 | 中国科学院合肥物质科学研究院 | Integrating sphere embedded photo-thermal interferential aerosol scattering and absorbing synchronous measurement device |
| CN206177798U (en) * | 2016-11-04 | 2017-05-17 | 天津同阳科技发展有限公司 | Diffuse reflection total mark ball detection device |
| CN106872372A (en) * | 2017-03-17 | 2017-06-20 | 广西电网有限责任公司电力科学研究院 | A kind of constant-temperature integrating sphere device for gas analysis |
| CN107334477A (en) * | 2017-05-02 | 2017-11-10 | 北京理工大学深圳研究院 | A kind of double spectrum noninvasive dynamics monitoring devices |
| CN208270425U (en) * | 2018-05-29 | 2018-12-21 | 天津九光科技发展有限责任公司 | Diffuse reflection spectrum measuring device based on integrating sphere |
| CN109632694A (en) * | 2018-12-26 | 2019-04-16 | 深圳市太赫兹科技创新研究院有限公司 | Tera-hertz spectra test equipment and system |
| CN210108947U (en) * | 2019-04-30 | 2020-02-21 | 深圳市太赫兹科技创新研究院有限公司 | Optical integrating sphere and sample terahertz reflection spectrum acquisition device |
Non-Patent Citations (2)
| Title |
|---|
| 吴勤 等: "《太赫兹技术发展与应用》", 31 August 2018, 中国宇航出版社, pages: 84 * |
| 廖海林: "基于积分球气室的光学气体检测系统设计与实现", 《中国优秀硕士论文全文数据库工程科技I辑》, no. 3, 15 March 2017 (2017-03-15), pages 42 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113933262A (en) * | 2021-09-26 | 2022-01-14 | 华太极光光电技术有限公司 | Modular terahertz detection system with selectable functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102866117B (en) | A kind of Portable fruit internal quality nondestructive detection device and method | |
| CN104132911B (en) | Open type long optical distance CO and CH4 online testing instrument | |
| CN103712777B (en) | Detect device and the detection method of ultraviolet light photo imaging system performance parameter | |
| CN204831196U (en) | School device is examined to portable wide many optical axises of spectrum parallel | |
| CN106644989B (en) | Absorbance detection system | |
| CN110108648A (en) | A kind of discrimination method and identification system of dried orange peel | |
| CN113167739A (en) | Probe for measuring combustion-supporting gas composition | |
| CN106018339B (en) | Adaptive reflective infrared laser industrial hazard gas leakage monitoring device | |
| CN106872402A (en) | Gas-detecting device and method based on super continuous spectrums laser | |
| CN105628196B (en) | A kind of ultraviolet focal-plane array response characteristic test device and method | |
| TW201205046A (en) | Sunlight simulator with detection device and solar cell detection device | |
| CN103884677A (en) | Gas analyzer sample gas chamber apparatus with characteristic of easy optical path adjustment | |
| CN104483104A (en) | Spectral response analysis system for photoelectric detector | |
| CN106018330A (en) | Pocket-type near-infrared spectrometer | |
| CN206772438U (en) | Absorption and fluorescence spectrum detecting device based on mobile intelligent terminal | |
| CN103528983B (en) | A kind of gas-detecting device and gas detection method | |
| CN105067571A (en) | Laser-induced plasma spectrum enhancing device | |
| CN110146465A (en) | A kind of optical integrating-sphere and sample Terahertz reflectance spectrum acquisition device | |
| CN206832668U (en) | Gasmetry pond and the gas analyzer provided with gasmetry pond | |
| CN102928081B (en) | Acousto-optic adjustable filtering type near-infrared spectrometer | |
| CN110132887A (en) | A kind of optical integrating-sphere and sample Terahertz transmitted spectrum acquisition device | |
| CN110823364A (en) | High-intensity illuminometer calibration device and calibration method | |
| CN110057779A (en) | Method and apparatus based on temperature self-compensation TDLAS technology measurement gas concentration | |
| CN109856078A (en) | Optical gas detection system | |
| CN111551524B (en) | Device and method for measuring high-temperature optical parameters of material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20190820 Assignee: Jiangmen Huaxun ark Technology Co.,Ltd. Assignor: SHENZHEN THZ SCIENCE AND TECHNOLOGY INNOVATION INSTITUTE Contract record no.: X2021980017377 Denomination of invention: An optical integrating sphere and sample terahertz reflection spectrum acquisition device License type: Common License Record date: 20220104 |
|
| EE01 | Entry into force of recordation of patent licensing contract |