CN106442401A - Detection device and method combining Raman spectroscopy with near-infrared spectroscopy - Google Patents
Detection device and method combining Raman spectroscopy with near-infrared spectroscopy Download PDFInfo
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- CN106442401A CN106442401A CN201610936952.3A CN201610936952A CN106442401A CN 106442401 A CN106442401 A CN 106442401A CN 201610936952 A CN201610936952 A CN 201610936952A CN 106442401 A CN106442401 A CN 106442401A
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 127
- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004497 NIR spectroscopy Methods 0.000 title abstract description 4
- 238000002329 infrared spectrum Methods 0.000 claims abstract description 64
- 238000001237 Raman spectrum Methods 0.000 claims abstract description 41
- 230000008878 coupling Effects 0.000 claims abstract description 33
- 238000010168 coupling process Methods 0.000 claims abstract description 33
- 238000005859 coupling reaction Methods 0.000 claims abstract description 33
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 230000003595 spectral effect Effects 0.000 claims description 30
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- 238000009738 saturating Methods 0.000 claims description 7
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- 238000005516 engineering process Methods 0.000 description 6
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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
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06113—Coherent sources; lasers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/066—Modifiable path; multiple paths in one sample
- G01N2201/0666—Selectable paths; insertable multiple sources
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/066—Modifiable path; multiple paths in one sample
- G01N2201/0668—Multiple paths; optimisable path length
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Abstract
The invention discloses a detection device and method combining Raman spectroscopy with near-infrared spectroscopy. The device comprises a laser device (1), a beam splitter (2), a mechanical mirror switching device, a plane mirror (13), a focus collection lens (4), a Raman spectrometer coupling lens (5), a Raman spectrometer (6), a semi-reflecting and semi-transmitting beam splitter (17), a near-infrared light source (8), a near-infrared spectrometer coupling lens (9) and a near-infrared spectrometer (10). When the mechanical mirror switching device is in a first switching state, the plane mirror (13) is located on the optical path of laser beams reflected by the beam splitter (2), and when the mechanical mirror switching device is in a second switching state, the laser beams reflected by the beam splitter (2) are directly input to the focus collection lens (4). Raman spectroscopy and near-infrared spectroscopy are combined for detection, the Raman spectrometer and the near-infrared spectrometer share one detection head, and time-sharing acquisition of Raman spectrum signals and near-infrared spectrum signals is achieved.
Description
Technical field
The present invention relates to Raman signal processing technology field, more particularly to a kind of combination Raman spectrum and near infrared spectrum
Detection device and detection method.
Background technology
Raman spectrum (Raman spectra) is a kind of scattering spectrum.Raman spectrum analyses method be based on India scientist
C.V. the Raman scattering effect found by Raman (Raman), the scattering spectrums different to incident light frequency are analyzed to obtain
Information in terms of molecular vibration, rotation, and it is applied to a kind of analysis method of molecular structure research.Raman spectroscopy is with its spirit
Quick property, rapidity and easy to operate the advantages of, be developed rapidly and extensively apply in Noninvasive testing field.
When illumination is mapped to medium, in addition to Absorption of Medium, reflection and passing through, always some is scattered, its scattering
Including elastic scattering and inelastic scattering.The scattered light of elastic scattering is and excitation wavelength identical composition, inelastic scattering
Scattered light have the composition long He shorter than excitation wavelength, be referred to as Raman effect.Scattered light can be divided into three according to frequency
Class：The first kind, is caused by certain scattering center (molecule or dust particle), and its wave number change is less than 10-5cm- 1Or it is basic
Constant, this kind of scattering is referred to as Mie scattering；Equations of The Second Kind, is occurred to interact and produced by the elastic wave in incident illumination wave field and medium
Raw scattering, its wave number change about 0.1cm- 1, referred to as Brillouin (Brillouin) scattering；Above two classes scattering is generally difficult to
Resolution is collectively referred to as Rayleigh scattering；3rd class, wave number changes more than 1cm- 1Scattering, equivalent to molecule rotation, vibration level and electricity
Sub- transition between the energy levels scope, referred to as Raman scattering.
Near infrared spectrum (Near Infrared Spectroscopy, abbreviation NIRS) analytical technology be using the near of sample
Between infrared signature absorption peak and sample composition content and performance set up mathematical relationship, predict unknown sample component content and
Its performance.Compared with mid-infrared, although the frequency multiplication of near infrared spectrum or group sum of fundamental frequencies absorption intensity than fundamental frequency peak intensity about low 1 to
3 orders of magnitude, but as these weak absorption bands not do not show marginal interference in MIR absorption band, so larger at one
Absorb sexual intercourse wired between these intensities of absorption bands and measured object concentration in dynamic range.Near-infrared spectral analysis technology is also
A kind of efficiently quickly modern analytical technique, multiple such as integrated use computer technology, spectral technique and Chemical Measurement
The newest research results of section, have obtained increasingly extensive application with its unique advantage in multiple fields, and have gradually obtained big
Many generally acceptance.In recent years, deeply grinding due to computer and the development of chemometricses software, particularly Chemical Measurement
Study carefully and extensively apply, make near-infrared spectrum technique become with fastest developing speed, most noticeable spectral technique.In the short more than ten years
Interior, near-infrared spectrum technique fast development becomes the analytical technology of a great competitiveness.
Inherently, near infrared spectrum is absorption spectrum, and Raman spectrum is non-elastic scattering spectra, and both can characterize thing
The structure of matter molecule.But for Cucumber, thermo-responsive for laser, or raman spectral signal is extremely faint, or swash
There is strong fluorescence signal when light is excited so that Raman signal is submerged in fluorescence signal and cannot realize raman spectral signal
Collection.Equally, moieties near infrared absorption weak output signal, and Raman signal is very strong.Do not exist in prior art using same
One detecting head carries out the implementation of raman spectral signal and the acquisition time of near infrared spectrum letter thing.
Content of the invention
Raman spectral signal and near infrared spectrum is carried out to solve to provide in prior art using same detecting head
The implementation of the acquisition time of letter thing, the invention provides the detection device of a kind of combination Raman spectrum and near infrared spectrum
And detection method.
The invention provides the detection device of a kind of combination Raman spectrum and near infrared spectrum, including laser instrument, beam splitter,
Mechanical face mirror switching device, plane mirror, focused acquisition lens, Raman spectrometer coupled lens, Raman spectrometer, half anti-half
Saturating beam splitter, near-infrared light source, near infrared spectrometer coupled lens, near infrared spectrometer；
The laser instrument is used for exporting parallel one-wavelength laser light beam；
The beam splitter is arranged at the laser in the way of the laser beam for exporting with the laser instrument is in predetermined angle
On the laser beam output light path of device output；
One end of machinery face mirror switching device is provided with the plane mirror, and the other end is vacant, the machinery face
When mirror switching device is in the first switching state, the plane mirror is located at the light path of the laser beam of the beam splitter reflection
Upper and with beam splitter reflection laser beam is in predetermined angle, and the plane mirror is used for the half-reflection and half-transmission beam splitting
The light beam of mirror transmission is reflexed on the focused acquisition lens, is additionally operable to the light beam reflection after the focused acquisition collimated
To the half-reflection and half-transmission beam splitter；When the machinery face mirror switching device is in the second switching state, the beam splitter reflection
Laser beam be directly inputted into the focused acquisition lens；
The focused acquisition lens are arranged in the way of the laser beam for reflecting perpendicular to the beam splitter, and the focusing is adopted
The focal point of collection lens corresponds to sample lay down location；
The half-reflection and half-transmission beam splitter with described flat in the machinery face mirror switching device of the first switching state
Face mirror parallel is arranged, and for the light beam that near-infrared light source described in transmission is launched, is additionally operable to reflection from the plane reflection
The light beam that mirror is reflected back；
The Raman spectrometer coupled lens are arranged in the way of the sample the reflected beams perpendicular to the beam splitter transmission
In the side of the beam splitter, for light beam coupling to be entered slit or the optical fiber of the Raman spectrometer；
The near infrared spectrometer coupled lens, for the light beam coupling that reflects the half-reflection and half-transmission beam splitter to described
Near infrared spectrometer.
The detection device of above-mentioned combination Raman spectrum and near infrared spectrum also has the characteristics that：
Also include the Raman channel filter being arranged between beam splitter and Raman spectrometer coupled lens；It is arranged at half anti-
Near infrared channels optical filter between semi-transparent beam splitter and near infrared spectrometer coupled lens.
The detection device of above-mentioned combination Raman spectrum and near infrared spectrum also has the characteristics that：
The predetermined angle is 45 degree.
Present invention also offers the detection device of a kind of combination Raman spectrum and near infrared spectrum, including laser instrument, beam splitting
Mirror, mechanical face mirror switching device, the first plane mirror, focused acquisition lens, Raman spectrometer coupled lens, Raman spectrum
Instrument, the second plane mirror, near-infrared light source, near infrared spectrometer coupled lens, near infrared spectrometer；
The laser instrument is used for exporting parallel one-wavelength laser light beam；
The beam splitter is arranged at the laser in the way of the laser beam for exporting with the laser instrument is in predetermined angle
On the output light path of device output laser beam；
One end of machinery face mirror switching device is provided with the first plane mirror, and the other end is vacant, the machinery face
When mirror switching device is in the first switching state, first plane mirror is located at the laser beam of the beam splitter reflection
The laser beam for reflecting in light path and with the beam splitter is in predetermined angle, and first plane mirror is used for the focusing
Light beam after collection collimated is reflexed on second plane mirror；Machinery face mirror switching device is cut in second
When changing state, the laser beam of the beam splitter reflection is directly inputted into the focused acquisition lens；
The focused acquisition lens are arranged in the way of the laser beam for reflecting perpendicular to the beam splitter, and the focusing is adopted
The focal point of collection lens corresponds to sample lay down location；
Second plane mirror with the machinery face mirror switching device of the first switching state described the
One plane mirror be arranged in parallel, and the light beam for reflecting first plane mirror reflexes to the near infrared spectrometer
Coupled lens；
The Raman spectrometer coupled lens are arranged in the way of the sample the reflected beams perpendicular to the beam splitter transmission
In the side of the beam splitter, for light beam coupling to be entered slit or the optical fiber of the Raman spectrometer；
The near infrared spectrometer coupled lens, for the light beam coupling that reflects second plane mirror to described
Near infrared spectrometer；
The near-infrared light source is arranged on the outside of the focus of focused acquisition lens, for Jiao to the focused acquisition lens
Point transmitting light beam.
Present invention also offers a kind of using above-mentioned combination Raman spectrum and the detection side of the detection device of near infrared spectrum
Method, including：
Sample is positioned over the focal point of the focused acquisition lens；
When needing to carry out raman spectral signal collection, the near-infrared light source is closed, control the machinery face mirror switching
Device is in the second switching state, opens the laser instrument, carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, the laser instrument is closed, control the machinery face mirror switching dress
Put in the first switching state, the near-infrared light source is opened, carry out near infrared spectrum signals collecting.
Present invention also offers the detection device of a kind of combination Raman spectrum and near infrared spectrum, including laser instrument, beam splitting
Mirror, the first mechanical face mirror switching device, the first plane mirror, focused acquisition lens, Raman spectrometer coupled lens, Raman light
Spectrometer, the second mechanical face mirror switching device, the second plane mirror, half-reflection and half-transmission face mirror, near-infrared light source, near infrared spectrometer
Coupled lens, near infrared spectrometer；
The laser instrument is used for exporting parallel one-wavelength laser light beam；
The beam splitter is arranged at the laser in the way of the laser beam for exporting with the laser instrument is in predetermined angle
On the output light path of device output laser beam；
One end of described first mechanical face mirror switching device is provided with first plane mirror, and the other end is vacant, institute
State mechanical face mirror switching device in the first switching state when, first plane mirror is located at swashing for beam splitter reflection
The laser beam for reflecting in the light path of light light beam and with the beam splitter is in predetermined angle；
One end of described second mechanical face mirror switching device is provided with second plane mirror, the other end and is provided with half
Anti- semi-transparent face mirror；Described second mechanical face mirror switching device is in the first switching state and the first mechanical face mirror switching is filled
Put in the first switching state when, first plane mirror is located at the near-infrared light source and second plane mirror
Between, second plane mirror is be arranged in parallel with first plane mirror, and is used for first plane reflection
The laser beam of mirror reflection reflexes to the focused acquisition lens；
Described first mechanical face mirror switching device is in the second switching state and second mechanical face mirror switching device
In the second switching state when, the half-reflection and half-transmission face mirror in the second mechanical face mirror switching device receives the near-infrared light source
The light beam of transmitting, and this light beam is reflexed to the focused acquisition lens, it is additionally operable to the sample of the focused acquisition lens transmission
The light beam of product is transmitted through the near infrared spectrometer coupled lens；
The near infrared spectrometer coupled lens are used for the light beam coupling of half-reflection and half-transmission beam splitter reflection to described
Near infrared spectrometer；
The Raman spectrometer coupled lens are used for by the light beam coupling of the sample of the beam splitter transmission to the Raman
Spectrogrph.
The detection device of above-mentioned combination Raman spectrum and near infrared spectrum also has the characteristics that：Also include to be arranged at beam splitting
Raman channel filter between mirror and Raman spectrometer coupled lens；It is arranged at the input light of near infrared spectrometer coupled lens
Near infrared channels optical filter on road.
Included using the detection method of above-mentioned combination Raman spectrum and the detection device of near infrared spectrum：
Sample is positioned over the focal point of the focused acquisition lens；
When needing to carry out raman spectral signal collection, the near-infrared light source is closed, control the described first mechanical face mirror
Switching device is in the first switching state, controls the described second mechanical face mirror switching device to be in the first switching state, opens institute
Laser instrument is stated, carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, the laser instrument is closed, control the described first mechanical face mirror to cut
Changing device is in the second switching state, controls the described second mechanical face mirror switching device to be in the second switching state, opens described
Near-infrared light source, carries out near infrared spectrum signals collecting.
Present invention also offers the detection device of a kind of combination Raman spectrum and near infrared spectrum, including laser instrument, beam splitting
Mirror, the first plane mirror, focused acquisition lens, Raman spectrometer coupled lens, Raman spectrometer, mechanical face mirror switching dress
Put, the second plane mirror, near-infrared light source, near infrared spectrometer coupled lens, near infrared spectrometer；
The laser instrument is used for exporting parallel one-wavelength laser light beam；
The beam splitter is arranged at the laser in the way of the laser beam for exporting with the laser instrument is in predetermined angle
On the output light path of device output laser beam；
First plane mirror be located in the light path of the laser beam of beam splitter reflection and with the beam splitter
The laser beam of reflection is in predetermined angle；
It is vacant that one end of the machinery face mirror switching device is provided with second plane mirror, the other end；The machine
When tool face mirror switching device is in the first switching state, second plane mirror is parallel with first plane mirror to be set
Put, and the laser beam for reflecting first plane mirror reflexes to the focused acquisition lens；
The near-infrared light source is arranged on the outside of the focus of focused acquisition lens, for Jiao to the focused acquisition lens
Point transmitting light beam；
When the machinery face mirror switching device is in the second switching state, the light beam of the focused acquisition lens transmission is direct
It is input into the near infrared spectrometer coupled lens；
The near infrared spectrometer coupled lens are used for the light beam coupling for receiving from focused acquisition lens to described near
Infrared spectrometer；
The Raman spectrometer coupled lens are used for by the light beam coupling of the sample of the beam splitter transmission to the Raman
Spectrogrph.
Above-mentioned detection method also has the characteristics that：
Sample is positioned over the focal point of the focused acquisition lens；
When needing to carry out raman spectral signal collection, the near-infrared light source is closed, control the machinery face mirror switching
Device is in the first switching state, opens the laser instrument, carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, the laser instrument is closed, control the machinery face mirror switching dress
Put in the second switching state, the near-infrared light source is opened, carry out near infrared spectrum signals collecting.
The present invention for the deficiency that exists of individual event Detection Techniques of Raman spectrometer and near infrared spectrometer, using Raman and
The complementing each other property of both near-infrareds, is combined near infrared spectrum in conjunction with Raman spectrum and is detected, realize Raman spectrometer with
Near infrared spectrometer shares a detecting head, realizes the acquisition time of raman spectral signal and near infrared light spectrum signal.
Description of the drawings
Fig. 1 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment one；
Fig. 2 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment two；
Fig. 3 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment three；
Fig. 4 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in example IV.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment for being obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Need
Illustrate, in the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
Embodiment one
Fig. 1 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment one.
This device includes：Laser instrument 1, beam splitter 2, mechanical face mirror switching device, plane mirror 13, focused acquisition lens 4, Raman light
Spectrometer coupled lens 5, Raman spectrometer 6, half-reflection and half-transmission beam splitter 17, near-infrared light source 8, near infrared spectrometer coupled lens 9,
Near infrared spectrometer 10.
Laser instrument 1 is used for exporting parallel one-wavelength laser light beam；
Beam splitter 2 is arranged at laser in the way of the laser beam for exporting with laser instrument 1 is in predetermined angle (such as 45 degree)
On the laser beam output light path that device 1 is exported；
One end of mechanical face mirror switching device is provided with plane mirror 13, and the other end is vacant.Mechanical face mirror switching device
Electromagnetic type or mechanical rotary target can be adopted wheeled.When mechanical face mirror switching device is in the first switching state, plane mirror 13
The laser beam for reflecting in the light path of the laser beam for reflecting positioned at beam splitter 2 and with beam splitter 2 is in predetermined angle, plane reflection
Mirror 13 is used for for the light beam of 17 transmission of half-reflection and half-transmission beam splitter reflexing to focused acquisition lens 4, is additionally operable to focused acquisition is saturating
Light beam after mirror 4 is collimated is reflexed on half-reflection and half-transmission beam splitter 17；When mechanical face mirror switching device is in the second switching state, point
The laser beam of the bundle reflection of mirror 2 is directly inputted into focused acquisition lens 4.
Focused acquisition lens 4 are arranged in the way of the laser beam for reflecting perpendicular to beam splitter 2, for converging laser beam
With near infrared illumination source to focal point, it is additionally operable to collimate Raman scattering signal and the near-infrared reflection signal of sample, focusing is adopted
The focal point of collection lens 4 corresponds to sample lay down location.
Half-reflection and half-transmission beam splitter 17 is put down with the plane mirror being in the mechanical face mirror switching device of the first switching state
Row is arranged, and for the light beam that transmission near-infrared light source 8 is launched, is additionally operable to reflect the light beam being reflected back from plane mirror.
Raman spectrometer coupled lens 5 are arranged at beam splitting in the way of the sample the reflected beams perpendicular to 2 transmission of beam splitter
The side of mirror 2, for light beam coupling to be entered slit or the optical fiber of Raman spectrometer 6.
Near infrared spectrometer coupled lens 9, for the light beam coupling that reflects half-reflection and half-transmission beam splitter 17 near infrared light
Spectrometer 10.
Wherein,
When in this device, laser instrument 1 exports parallel one-wavelength laser light beam, can be that straight space is exported, or logical
Export after crossing optical fiber output collimation, if the monochromaticity of laser instrument itself can not meet requirement, secondary lobe peak energy amount is excessive, can swash
Increase Laser Purification optical filter before light device 1.
Beam splitter 2 is dichroic beamsplitter, for reflecting laser beam, while the optical signal of transmission sample feedback.
Near-infrared light source 8 adopts coaxial-illuminating, by certain collimating optical system collimation compression angle of divergence.
This device also includes the Raman channel filter being arranged between beam splitter 2 and Raman spectrometer coupled lens 5, uses
In filtering Ruili scattered light；Also include to be arranged near between half-reflection and half-transmission beam splitter 17 and near infrared spectrometer coupled lens 9
Infrared channel optical filter.
Included using the detection method of the detection device in embodiment one：
Step 1, sample is positioned over the focal point of focused acquisition lens 4.
Step 2, when needing to carry out raman spectral signal collection, close near-infrared light source 8, control machinery face mirror switching dress
Put in the second switching state, laser instrument 1 is opened, carry out raman spectral signal collection.
Step 3, when needing to carry out near infrared spectrum signals collecting, close laser instrument 1, control machinery face mirror switching device
In the first switching state, near-infrared light source 8 is opened, carry out near infrared spectrum signals collecting.
Wherein,
In step 2, when needing to carry out raman spectral signal collection, near-infrared light source 8 is closed, control machinery face mirror switches
Device is in the second switching state, will be arranged at the position of primary plane reflecting mirror 13 in vacant one end in mechanical face mirror switching device
Put, now Raman spectrum path is gated, laser instrument 1 is opened, the laser that laser instrument 1 sends reflexes to focusing via beam splitter 2 and adopts
Collection lens 4, laser beam converges to focused acquisition lens 4 focal point for being placed with sample, the optical signal of sample reflection via
Focused acquisition lens 4 directly or are input into Raman spectrometer coupled lens 5, by Raman via Raman channel filter after collimating
Spectrogrph coupled lens 5 are coupled to Raman spectrometer 6.
In step 3, when needing to carry out near infrared spectrum signals collecting, laser instrument 1, control machinery face mirror switching dress is closed
Put in the first switching state, will plane mirror 13 be arranged between beam splitter 2 and focused acquisition lens 4, open closely red
Outer light source 8, the light beam that 17 transmission near-infrared light source of half-reflection and half-transmission beam splitter 8 is launched, focusing being reflexed to through plane mirror 13 adopts
Collection lens 4, laser beam converges to focused acquisition lens 4 focal point for being placed with sample, the optical signal of sample reflection via
Focused acquisition lens 4 are input into plane mirror 13 after collimating, and reflex to half-reflection and half-transmission beam splitter 17, warp through plane mirror 13
Half-reflection and half-transmission beam splitter 17 directly or is input near infrared spectrometer coupled lens 9 via near infrared channels optical filter after reflecting,
The light beam coupling that logical near infrared spectrometer coupled lens 9 reflect is near infrared spectrometer 10.
Embodiment two
Embodiment two is with the difference of embodiment one, and near-infrared light source 8 adopts paraxial light illumination mode, near infrared light
Source 8 carries out direct irradiation to sample, can may also be employed that multiple light sources are symmetrical, annular array exists with single near-infrared lamp source
The side of focused acquisition lens 4.In embodiment two, without using half-reflection and half-transmission beam splitter.
Fig. 2 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment two,
This device includes laser instrument 1, beam splitter 2, mechanical face mirror switching device, the first plane mirror 23, focused acquisition lens 4, draws
Graceful spectrogrph coupled lens 5, Raman spectrometer 6, the second plane mirror 27, the coupling of near-infrared light source 8, near infrared spectrometer are saturating
Mirror 9, near infrared spectrometer 10；
Laser instrument 1 is used for exporting parallel one-wavelength laser light beam；
Beam splitter 2 is arranged at laser in the way of the laser beam for exporting with laser instrument 1 is in predetermined angle (such as 45 degree)
Device 1 is exported on the output light path of laser beam；
One end of mechanical face mirror switching device is provided with the first plane mirror 23, and the other end is vacant, mechanical face mirror switching
Device in the first switching state when, the first plane mirror 23 be located in the light path of the laser beam of the reflection of beam splitter 2 and with
The laser beam that beam splitter 2 reflects is in predetermined angle, and the first plane mirror 23 is used for the light after collimating focused acquisition lens 4
Bundle is reflexed on the second plane mirror 27, and when mechanical face mirror switching device is in the second switching state, what beam splitter 2 reflected swashs
Light light beam is directly inputted into focused acquisition lens 4；
Focused acquisition lens 4 are arranged in the way of the laser beam for reflecting perpendicular to beam splitter 2, focused acquisition lens 2
Focal point corresponds to sample lay down location；
Second plane mirror 27 and the first plane reflection being in the mechanical face mirror switching device of the first switching state
Mirror 23 be arranged in parallel, and the light beam for reflecting the first plane mirror 23 reflexes near infrared spectrometer coupled lens 9；
Raman spectrometer coupled lens 5 are arranged at beam splitting in the way of the sample the reflected beams perpendicular to 2 transmission of beam splitter
The side of mirror 2, for light beam coupling to be entered slit or the optical fiber of Raman spectrometer 6；
Near infrared spectrometer coupled lens 9, for the light beam coupling that reflects the second plane mirror 27 near infrared light
Spectrometer 10；
Near-infrared light source 8 is arranged on the outside of the focus of focused acquisition lens 4, for sending out to the focus of focused acquisition lens 4
Irradiating light beam.
This device also includes the Raman channel filter being arranged between beam splitter 2 and Raman spectrometer coupled lens 5；If
The near infrared channels optical filter being placed between half-reflection and half-transmission beam splitter 27 and near infrared spectrometer coupled lens 9.
Using the combination Raman spectrum in embodiment two and the detection side of the detection device of the detection device of near infrared spectrum
Method is identical with the method in embodiment one.
Wherein,
In step 2, when needing to carry out raman spectral signal collection, near-infrared light source 8 is closed, control machinery face mirror switches
Device is in the second switching state, will be arranged at the first primary plane reflecting mirror 23 in vacant one end in mechanical face mirror switching device
Position, now gate Raman spectrum path, open laser instrument 1, the laser that laser instrument 1 sends reflexes to poly- via beam splitter 2
Burnt collection lens 4, laser beam is converged to focused acquisition lens 4 focal point for being placed with sample, the optical signal of sample reflection
It is input into Raman spectrometer coupled lens 5 directly or via Raman channel filter after collimating via focused acquisition lens 4, passes through
Raman spectrometer coupled lens 5 are coupled to Raman spectrometer 6.
In step 3, when needing to carry out near infrared spectrum signals collecting, laser instrument 1, control machinery face mirror switching dress is closed
Put in the first switching state, will the first plane mirror 23 be arranged between beam splitter 2 and focused acquisition lens 4, open
8 direct irradiation sample of near-infrared light source, the optical signal of sample reflection is input into plane reflection after collimating via focused acquisition lens 4
Mirror 23, reflexes to half-reflection and half-transmission beam splitter 27 through plane mirror 23, after reflecting through half-reflection and half-transmission beam splitter 27 directly or via
Near infrared channels optical filter is input into the light beam for reflecting near infrared spectrometer coupled lens 9, logical near infrared spectrometer coupled lens 9
Coupled near infrared spectrometer 10.
Embodiment three
Embodiment three is to exchange near infrared channels and Raman channel position from the different part of embodiment one and two, this
When near infrared channels be put-through channel, Raman passage for turning back gating passage, two mechanical face mirrors switching dresses are set in the program
Put.
Fig. 3 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in embodiment three,
This device includes laser instrument 1, the 2, first mechanical face of beam splitter mirror switching device, the first plane mirror 33, focused acquisition lens
4th, Raman spectrometer coupled lens 5, the mechanical face mirror switching device of Raman spectrometer 6, second, the second plane mirror 37, half anti-
Semi-transparent face mirror, near-infrared light source 8, near infrared spectrometer coupled lens 9, near infrared spectrometer 10.
Laser instrument 1 is used for exporting parallel one-wavelength laser light beam.
Beam splitter 2 is arranged at laser in the way of the laser beam for exporting with laser instrument 1 is in predetermined angle (such as 45 degree)
Device 1 is exported on the output light path of laser beam.
One end of first mechanical face mirror switching device is provided with the first plane mirror 33, and the other end is vacant, mechanical face mirror
When switching device is in the first switching state, in the light path of the laser beam that the first plane mirror 33 is located at the reflection of beam splitter 2
And with beam splitter 2 reflect laser beam be in predetermined angle.
One end of second mechanical face mirror switching device is provided with the second plane mirror 37, other end and is provided with half-reflection and half-transmission
Face mirror；Second mechanical face mirror switching device is in the first switching state and the first mechanical face mirror switching device is in the first switching
During state, the first plane mirror 33 Wei Yu near-infrared light source 8 and the second plane mirror 37 between, the second plane mirror 37
It is arranged in parallel with the first plane mirror 33, and the laser beam for reflecting the first plane mirror 33 reflexes to focusing and adopts
Collection lens 4.
First mechanical face mirror switching device is in the second switching state and the second mechanical face mirror switching device is in second
During switching state, the half-reflection and half-transmission face mirror in the second mechanical face mirror switching device receives the light beam of the transmitting of near-infrared light source 8, and will
This light beam reflexes to focused acquisition lens 4, is additionally operable to for the light beam of the sample of 4 transmission of focused acquisition lens to be transmitted through near infrared light
Spectrometer coupled lens 9.
Near infrared spectrometer coupled lens 9 are used for the light beam coupling of half-reflection and half-transmission beam splitter reflection near infrared spectrometer
10.
Raman spectrometer coupled lens 5 are used for by the light beam coupling of the sample of 2 transmission of beam splitter to Raman spectrometer 6.
This device also includes the Raman channel filter being arranged between beam splitter 2 and Raman spectrometer coupled lens 5；If
The near infrared channels optical filter being placed on the input light path of near infrared spectrometer coupled lens 9.
Included using the detection method of the detection device in embodiment three：
Step 1, sample is positioned over the focal point of focused acquisition lens 4；
Step 2, when needing to carry out raman spectral signal collection, closes near-infrared light source 8, and the first mechanical face of control mirror is cut
Changing device is in the first switching state, and the mechanical face mirror switching device of control second is in the first switching state, opens laser instrument 1,
Carry out raman spectral signal collection；
Step 3, when needing to carry out near infrared spectrum signals collecting, closes laser instrument 1, the mirror switching of the first mechanical face of control
Device is in the second switching state, and the mechanical face mirror switching device of control second is in the second switching state, opens near-infrared light source
8, carry out near infrared spectrum signals collecting.
Specifically：
In step 2, when needing to carry out raman spectral signal collection, near-infrared light source 8, the first mechanical face of control mirror is closed
Switching device is in the first switching state (i.e. the specular state of the first reflecting surface), and the mechanical face mirror switching device of control second is in first
Switching state (i.e. the specular state of the second reflecting surface), opens laser instrument 1, and the laser that laser instrument 1 sends reflexes to via beam splitter 2
One plane mirror 33, reflex to the second plane mirror 37, anti-through the second plane mirror 37 through the first plane mirror 33
Focused acquisition lens 4 are incident upon, laser beam is converged to focused acquisition lens 4 focal point for being placed with sample, sample reflection
Optical signal is input into the second plane mirror 37 after collimating via focused acquisition lens 4, reflexes to through the second plane mirror 37
First plane mirror 33, reflex to beam splitter 2 through the first plane mirror 33, through 2 transmission of beam splitter, directly or via Raman
Channel filter is input into Raman spectrometer coupled lens 5, is coupled to Raman spectrometer 6 by Raman spectrometer coupled lens 5.
In step 3, when needing to carry out near infrared spectrum signals collecting, laser instrument 1 is closed, the first mechanical face of control mirror is cut
Changing device is in the second switching state (i.e. blank state), and the mechanical face mirror switching device of control second is in the second switching state
(i.e. the specular state in half-reflection and half-transmission face), opens near-infrared light source 8, the light beam direct irradiation of infrared light supply 8 to half-reflection and half-transmission face mirror, half
Light beam is reflexed to focused acquisition lens 4 by anti-semi-transparent face mirror, and the nearly infrared beam of focused acquisition lens 4 is converged to and is placed with sample
Focal point, sample reflection optical signal via focused acquisition lens 4 collimation after be input into half-reflection and half-transmission face mirror, through half-reflection and half-transmission
After the mirror transmission of face, directly or it is input near infrared spectrometer coupled lens 9, logical near infrared spectrum via near infrared channels optical filter
The light beam coupling that instrument coupled lens 9 reflect is near infrared spectrometer 10.
Example IV
Example IV is a difference in that with embodiment three, adopts paraxial light illumination mode to infrared light supply 8.Two mechanical faces
When the equal switching device of mirror has switched to the specular state in face, Raman passage is gated, all switch to when state is empty, gating near-infrared leads to
Road.
Fig. 4 be with reference to Raman spectrum and the structure chart of the detection device of the detection device of near infrared spectrum in example IV,
This device include laser instrument 1, beam splitter 2, the first plane mirror 43, focused acquisition lens 4, Raman spectrometer coupled lens 5,
Raman spectrometer 6, mechanical face mirror switching device, the second plane mirror 47, the coupling of near-infrared light source 8, near infrared spectrometer are saturating
Mirror 9, near infrared spectrometer 10.
Laser instrument 1 is used for exporting parallel one-wavelength laser light beam；
Beam splitter 2 is arranged at laser in the way of the laser beam for exporting with laser instrument 1 is in predetermined angle (such as 45 degree)
Device 1 is exported on the output light path of laser beam.
In the light path of the laser beam that the first plane mirror 43 is located at the reflection of beam splitter 2 and sharp with what beam splitter 2 reflected
Light light beam is in predetermined angle.
It is vacant that one end of mechanical face mirror switching device is provided with the second plane mirror 47, other end；Mechanical face mirror switching
Device in the first switching state and the first mechanical face mirror switching device in the first switching state when, the second plane mirror
47 are be arranged in parallel with the first plane mirror 43, and the laser beam for reflecting the first plane mirror 43 reflexes to focusing
Collection lens 4.
Near-infrared light source 8 is arranged on the outside of the focus of focused acquisition lens 4, for sending out to the focus of focused acquisition lens 4
Irradiating light beam.
When mechanical face mirror switching device is in the second switching state, the light beam of 4 transmission of focused acquisition lens is directly inputted into
Near infrared spectrometer coupled lens 9.
Near infrared spectrometer coupled lens 9 are used for the light beam coupling of half-reflection and half-transmission beam splitter reflection near infrared spectrometer
10.
Raman spectrometer coupled lens 5 are used for by the light beam coupling of the sample of 2 transmission of beam splitter to Raman spectrometer 6.
This device also includes the Raman channel filter being arranged between beam splitter 2 and Raman spectrometer coupled lens 5；If
The near infrared channels optical filter being placed on the input light path of near infrared spectrometer coupled lens 9.
Included using the detection method of the detection device in example IV：
Step 1, sample is positioned over the focal point of focused acquisition lens 4；
Step 2, when needing to carry out raman spectral signal collection, closes near-infrared light source 8, control machinery face mirror switching dress
Put in the first switching state, laser instrument 1 is opened, carry out raman spectral signal collection；
Step 3, when needing to carry out near infrared spectrum signals collecting, closes laser instrument 1, control machinery face mirror switching device
In the second switching state, near-infrared light source 8 is opened, carry out near infrared spectrum signals collecting.
Specifically：
In step 2, when needing to carry out raman spectral signal collection, near-infrared light source 8 is closed, control machinery face mirror switches
Device be in the first switching state (i.e. the specular state of the second reflecting surface), open laser instrument 1, the laser that laser instrument 1 sends via point
Bundle mirror 2 reflexes to the first plane mirror 43, reflexes to the second plane mirror 47, flat through second through the first plane mirror 43
Face reflecting mirror 47 reflexes to focused acquisition lens 4, and laser beam is converged to focused acquisition lens 4 focus for being placed with sample
Place, the optical signal of sample reflection is via being input into the second plane mirror 47, anti-through the second plane after the collimation of focused acquisition lens 4
Penetrate mirror 47 reflex to the first plane mirror 43, reflex to beam splitter 2 through the first plane mirror 43, through 2 transmission of beam splitter, directly
Connect or be input into Raman spectrometer coupled lens 5 via Raman channel filter, be coupled to by Raman spectrometer coupled lens 5
Raman spectrometer 6.
In step 3, when needing to carry out near infrared spectrum signals collecting, laser instrument 1, control machinery face mirror switching dress is closed
Put in the second switching state (i.e. blank state), near-infrared light source 8 is opened, the light beam direct irradiation of infrared light supply 8 is to focusing
Collection lens 4, the nearly infrared beam of focused acquisition lens 4 converges to the focal point for being placed with sample, the optical signal of sample reflection
After collimating via focused acquisition lens 4, directly or it is input near infrared spectrometer coupled lens via near infrared channels optical filter
9, the light beam coupling that logical near infrared spectrometer coupled lens 9 reflect is near infrared spectrometer 10.
Near-infrared light source used in the present invention is typically near-infrared broad spectrum light source, such as near-infrared tungsten light source.
The present invention for the deficiency that exists of individual event Detection Techniques of Raman spectrometer and near infrared spectrometer, using Raman and
The complementing each other property of both near-infrareds, is combined near infrared spectrum in conjunction with Raman spectrum and is detected, realize Raman spectrometer with
Near infrared spectrometer shares a detecting head, realizes the acquisition time of raman spectral signal and near infrared light spectrum signal.
Descriptions above can combine individually or in every way enforcement, and these variant all exist
Within protection scope of the present invention.
Herein, term " including ", "comprising" or its any other variant are intended to including for nonexcludability, from
And cause to include that a series of article of key elements or equipment not only include those key elements, but also its including being not expressly set out
His key element, or also include the key element intrinsic for this article or equipment.In the absence of more restrictions, by language
Sentence " the including ... " key element that limits, it is not excluded that the article for including key element or also exist in equipment other identical will
Element.
Above example only in order to technical scheme to be described and unrestricted, reference only to preferred embodiment to this
Bright it has been described in detail.It will be understood by those within the art that, technical scheme can be modified
Or equivalent, without deviating from the spirit and scope of technical solution of the present invention, the claim model in the present invention all should be covered
In the middle of enclosing.
Claims (10)
1. the detection device of a kind of combination Raman spectrum and near infrared spectrum, it is characterised in that including laser instrument (1), beam splitter
(2), mechanical face mirror switching device, plane mirror (13), focused acquisition lens (4), Raman spectrometer coupled lens (5), drawing
Graceful spectrogrph (6), half-reflection and half-transmission beam splitter (17), near-infrared light source (8), near infrared spectrometer coupled lens (9), near infrared light
Spectrometer (10)；
Described laser instrument (1) is used for exporting parallel one-wavelength laser light beam；
Beam splitter (2) are arranged at described sharp in the way of the laser beam for exporting with the laser instrument (1) is in predetermined angle
On the laser beam output light path that light device (1) is exported；
One end of machinery face mirror switching device is provided with the plane mirror (13), and the other end is vacant, the machinery face
When mirror switching device is in the first switching state, the laser light that described plane mirror (13) are reflected positioned at beam splitter (2)
The laser beam for reflecting in the light path of bundle and with the beam splitter (2) is in predetermined angle, and described plane mirror (13) are used for will
The light beam of half-reflection and half-transmission beam splitter (17) transmission is reflexed on focused acquisition lens (4), is additionally operable to the focusing
Light beam after collection lens (4) collimation is reflexed on half-reflection and half-transmission beam splitter (17)；The machinery face Jing Qiehuanzhuanzhichu
When the second switching state, the laser beam that beam splitter (2) are reflected is directly inputted into focused acquisition lens (4)；
Focused acquisition lens (4) are arranged in the way of the laser beam for reflecting perpendicular to the beam splitter (2), the focusing
The focal point of collection lens (4) corresponds to sample lay down location；
Half-reflection and half-transmission beam splitter (17) and described flat in the machinery face mirror switching device of the first switching state
Face reflecting mirror (13) be arranged in parallel, for the light beam that near-infrared light source described in transmission (8) is launched, is additionally operable to reflect and puts down from described
The light beam that face reflecting mirror (13) is reflected back；
Raman spectrometer coupled lens (5) are set in the way of the sample the reflected beams perpendicular to the beam splitter (2) transmission
The side of the beam splitter (2) is placed in, for light beam coupling to be entered slit or the optical fiber of the Raman spectrometer (6)；
Near infrared spectrometer coupled lens (9), for the light beam coupling that reflects half-reflection and half-transmission beam splitter (17) extremely
Near infrared spectrometer (10).
2. the detection device of combination Raman spectrum as claimed in claim 1 and near infrared spectrum, it is characterised in that also include to set
The Raman channel filter being placed between beam splitter (2) and Raman spectrometer coupled lens (5)；It is arranged at half-reflection and half-transmission beam splitter
(17) the near infrared channels optical filter and between near infrared spectrometer coupled lens (9).
3. the detection device of combination Raman spectrum as claimed in claim 1 and near infrared spectrum, it is characterised in that described default
Angle is 45 degree.
4. the detection device of a kind of combination Raman spectrum and near infrared spectrum, it is characterised in that including laser instrument (1), beam splitter
(2), mechanical face mirror switching device, the first plane mirror (23), focused acquisition lens (4), Raman spectrometer coupled lens
(5), Raman spectrometer (6), the second plane mirror (27), near-infrared light source (8), near infrared spectrometer coupled lens (9), near
Infrared spectrometer (10)；
Described laser instrument (1) is used for exporting parallel one-wavelength laser light beam；
Beam splitter (2) are arranged at described sharp in the way of the laser beam for exporting with the laser instrument (1) is in predetermined angle
On the output light path of light device (1) output laser beam；
One end of machinery face mirror switching device is provided with the first plane mirror (23), and the other end is vacant, the machinery face
When mirror switching device is in the first switching state, described first plane mirror (23) are positioned at swashing that beam splitter (2) are reflected
The laser beam for reflecting in the light path of light light beam and with the beam splitter (2) is in predetermined angle, first plane mirror
(23) light beam after being used for collimating described focused acquisition lens (4) reflexes to the second plane mirror (27)；Described
When mechanical face mirror switching device is in the second switching state, the laser beam that beam splitter (2) are reflected is directly inputted into described
Focused acquisition lens (4)；
Focused acquisition lens (4) are arranged in the way of the laser beam for reflecting perpendicular to the beam splitter (2), the focusing
The focal point of collection lens (4) corresponds to sample lay down location；
Second plane mirror (27) with the machinery face mirror switching device of the first switching state described the
One plane mirror (23) be arranged in parallel, and the light beam for reflecting the first plane mirror (23) reflexes to described closely red
External spectrum instrument coupled lens (9)；
Raman spectrometer coupled lens (5) are set in the way of the sample the reflected beams perpendicular to the beam splitter (2) transmission
The side of the beam splitter (2) is placed in, for light beam coupling to be entered slit or the optical fiber of the Raman spectrometer (6)；
Near infrared spectrometer coupled lens (9), for the light beam coupling that reflects the second plane mirror (27) extremely
Near infrared spectrometer (10)；
Near-infrared light source (8) are arranged on the outside of the focus of focused acquisition lens (4), for the focused acquisition lens
(4) focus transmitting light beam.
5. combination Raman spectrum described in usage right requirement 1,2,3 or 4 and the detection side of the detection device of near infrared spectrum
Method, it is characterised in that include：
Sample is positioned over the focal point of focused acquisition lens (4)；
When needing to carry out raman spectral signal collection, close near-infrared light source (8), control the machinery face mirror switching dress
Put in the second switching state, the laser instrument (1) is opened, carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, close laser instrument (1), control machinery face mirror switching device
In the first switching state, the near-infrared light source (8) is opened, carries out near infrared spectrum signals collecting.
6. the detection device of a kind of combination Raman spectrum and near infrared spectrum, it is characterised in that including laser instrument (1), beam splitter
(2), the first mechanical face mirror switching device, the first plane mirror (33), focused acquisition lens (4), Raman spectrometer coupling are saturating
Mirror (5), Raman spectrometer (6), the second mechanical face mirror switching device, the second plane mirror (37), half-reflection and half-transmission face mirror, closely red
Outer light source (8), near infrared spectrometer coupled lens (9), near infrared spectrometer (10)；
Described laser instrument (1) is used for exporting parallel one-wavelength laser light beam；
Beam splitter (2) are arranged at described sharp in the way of the laser beam for exporting with the laser instrument (1) is in predetermined angle
On the output light path of light device (1) output laser beam；
One end of described first mechanical face mirror switching device is provided with the first plane mirror (33), and the other end is vacant, institute
State mechanical face mirror switching device in the first switching state when, described first plane mirror (33) be located at beam splitter (2)
The laser beam for reflecting in the light path of the laser beam of reflection and with the beam splitter (2) is in predetermined angle；
One end of described second mechanical face mirror switching device is provided with the second plane mirror (37), the other end and is provided with half
Anti- semi-transparent face mirror；Described second mechanical face mirror switching device is in the first switching state and the first mechanical face mirror switching is filled
Put in the first switching state when, described first plane mirror (33) are located at near-infrared light source (8) and described second flat
Between face reflecting mirror (37), the second plane mirror (37) are be arranged in parallel with the first plane mirror (33), are used in combination
Focused acquisition lens (4) are reflexed in the laser beam for reflecting the first plane mirror (33)；
Described first mechanical face mirror switching device is in the second switching state and second mechanical face mirror switching device is in
During the second switching state, the half-reflection and half-transmission face mirror in the described second mechanical face mirror switching device receives near-infrared light source (8)
The light beam of transmitting, and this light beam is reflexed to focused acquisition lens (4), it is additionally operable to focused acquisition lens (4) are saturating
The light beam of the sample that penetrates is transmitted through near infrared spectrometer coupled lens (9)；
Described near infrared spectrometer coupled lens (9) are used for the light beam coupling of half-reflection and half-transmission beam splitter reflection to described near
Infrared spectrometer (10)；
Described Raman spectrometer coupled lens (5) are used for by the light beam coupling of the sample of the beam splitter (2) transmission to the drawing
Graceful spectrogrph (6).
7. the detection device of combination Raman spectrum as claimed in claim 6 and near infrared spectrum, it is characterised in that also include to set
The Raman channel filter being placed between beam splitter (2) and Raman spectrometer coupled lens (5)；It is arranged near infrared spectrometer coupling
Close the near infrared channels optical filter on the input light path of lens (9).
8. combination Raman spectrum described in usage right requirement 6 or 7 and the detection method of the detection device of near infrared spectrum, which is special
Levy and be, including：
Sample is positioned over the focal point of focused acquisition lens (4)；
When needing to carry out raman spectral signal collection, close near-infrared light source (8), control the described first mechanical face mirror to cut
Changing device is in the first switching state, controls the described second mechanical face mirror switching device to be in the first switching state, opens described
Laser instrument (1), carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, close laser instrument (1), control the described first mechanical face mirror switching
Device is in the second switching state, controls the described second mechanical face mirror switching device to be in the second switching state, opens described near
Infrared light supply (8), carries out near infrared spectrum signals collecting.
9. the detection device of a kind of combination Raman spectrum and near infrared spectrum, it is characterised in that including laser instrument (1), beam splitter
(2), the first plane mirror (43), focused acquisition lens (4), Raman spectrometer coupled lens (5), Raman spectrometer (6), machine
Tool face mirror switching device, the second plane mirror (47), near-infrared light source (8), near infrared spectrometer coupled lens (9), closely red
External spectrum instrument (10)；
Described laser instrument (1) is used for exporting parallel one-wavelength laser light beam；
Beam splitter (2) are arranged at described sharp in the way of the laser beam for exporting with the laser instrument (1) is in predetermined angle
On the output light path of light device (1) output laser beam；
In the light path of the laser beam that described first plane mirror (43) are reflected positioned at beam splitter (2) and with the beam splitting
The laser beam that mirror (2) reflects is in predetermined angle；
It is vacant that one end of the machinery face mirror switching device is provided with the second plane mirror (47), the other end；The machine
When tool face mirror switching device is in the first switching state, the second plane mirror (47) and first plane mirror
(43) be arranged in parallel, and it is saturating the focused acquisition to be reflexed to for the laser beam that reflects the first plane mirror (43)
Mirror (4)；
Near-infrared light source (8) are arranged on the outside of the focus of focused acquisition lens (4), for the focused acquisition lens
(4) focus transmitting light beam；
When the machinery face mirror switching device is in the second switching state, the light beam of focused acquisition lens (4) transmission is direct
It is input near infrared spectrometer coupled lens (9)；
Described near infrared spectrometer coupled lens (9) are used for the light beam coupling that will receive from focused acquisition lens (4) to described
Near infrared spectrometer (10)；
Described Raman spectrometer coupled lens (5) are used for by the light beam coupling of the sample of the beam splitter (2) transmission to the drawing
Graceful spectrogrph (6).
10. combination Raman spectrum described in usage right requirement 9 and the detection method of the detection device of near infrared spectrum, its feature
It is, including：
Sample is positioned over the focal point of focused acquisition lens (4)；
When needing to carry out raman spectral signal collection, close near-infrared light source (8), control the machinery face mirror switching dress
Put in the first switching state, the laser instrument (1) is opened, carries out raman spectral signal collection；
When needing to carry out near infrared spectrum signals collecting, close laser instrument (1), control machinery face mirror switching device
In the second switching state, the near-infrared light source (8) is opened, carries out near infrared spectrum signals collecting.
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| CN109827946A (en) * | 2019-02-28 | 2019-05-31 | 华北水利水电大学 | Soil constituent in-situ analysis system and method |
| CN110146483A (en) * | 2019-05-17 | 2019-08-20 | 中国科学院力学研究所 | A kind of spectrum on line detection device and method |
| CN111328373A (en) * | 2017-11-07 | 2020-06-23 | 株式会社岛津制作所 | Infrared spectrophotometer accessory |
| CN111562249A (en) * | 2020-05-25 | 2020-08-21 | 重庆冠雁科技有限公司 | Two-in-one probe capable of simultaneously detecting Raman spectrum and near infrared spectrum |
| CN111579544A (en) * | 2020-05-25 | 2020-08-25 | 重庆冠雁科技有限公司 | Method capable of simultaneously measuring visible near infrared spectrum and Raman spectrum of substance |
| WO2023032352A1 (en) * | 2021-08-31 | 2023-03-09 | 株式会社島津製作所 | Raman-infrared spectroscopic analysis multifunction machine, and measuring method employing raman spectroscopy and infrared spectroscopy |
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