CN207636469U - A kind of combined multi-mode spectrophotometer - Google Patents
A kind of combined multi-mode spectrophotometer Download PDFInfo
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- CN207636469U CN207636469U CN201721813515.9U CN201721813515U CN207636469U CN 207636469 U CN207636469 U CN 207636469U CN 201721813515 U CN201721813515 U CN 201721813515U CN 207636469 U CN207636469 U CN 207636469U
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Abstract
The utility model belongs to spectral information field of measuring technique, more particularly to a kind of spectrophotometer.A kind of combined multi-mode spectrophotometer, beam splitter assembly therein include：Load-bearing part and switch piece；Load-bearing part is equipped with：Arbitrary two kinds or whole in semi-transparent semi-reflecting eyeglass, partially reflecting mirror piece and total reflection eyeglass；Beam splitter assembly is arranged between monochromator and speculum；Switch piece is used to drive the component on load-bearing part；When the light beam 100% of monochromator output passes through load-bearing part, realization single beam detection pattern；When the light beam of monochromator output passes through semi-transparent semi-reflecting eyeglass, the realization real-time detection pattern of dual-beam；When the light beam of monochromator output passes through partially reflecting mirror piece, realization dual-beam ratio detection pattern；When the light beam first 100% of monochromator output passes through load-bearing part, next switches to total reflection lens reflecting, realizes dual-beam timesharing detection pattern.The needs of when the utility model meets customer analysis difference sample, improves working efficiency.
Description
Technical field
The utility model belongs to spectral information field of measuring technique, more particularly to a kind of spectrophotometer.
Background technology
UV, visible light near infrared spectrometer is a kind of more universal analytical instrument, use one can generate it is more
The light source of a wavelength generates the light source of specific wavelength by monochromator, and sample to be analyzed is located in specimen cup, specific wavelength
After light beam passes through sample, some light is absorbed, by the degree of absorption of detector recording light beam, to obtain substance in sample
Content.UV, visible light near infrared spectrometer is mainly used in drugs analysis, food analysis, pollutant monitoring etc. in environment
Field.
The type of UV, visible light near infrared spectrometer is roughly divided into according to optical system structure：Single beam detection type,
Dual-beam ratio detection type, dual-beam detection type, dual-beam timesharing detection type in real time, the main feature of all types of spectrophotometers
Comparison, such as following table：
From the point of view of the analytical effect of sample, the spectrophotometer of these four types respectively has advantage and disadvantage.Each manufacturer in order to
Meet the needs of different user, separately designs production spectrophotometer according to these four types, an instrument only possesses a type
The analytic function of type, user can selectively buy according to their needs.But with the expansion of working service, the demand of user
Also change therewith, the single type spectrophotometer bought originally cannot be satisfied need of work, it is necessary to purchase other class again
Type spectrophotometer, causes acquisition cost to increase.
Utility model content
The purpose of this utility model is that：It is directed to the problem of spectrophotometric analysis has a single function in the prior art, is carried
For a kind of combined multi-mode spectrophotometer.
The technical solution of the utility model is：A kind of combined multi-mode spectrophotometer, it includes：Light source, monochromator,
Speculum, sample bin and detecting system；Reference cell and sample cell are equipped in sample bin；
Multi-mode spectrophotometer further includes：Beam splitter assembly；Beam splitter assembly includes：Load-bearing part and switch piece；It holds
Holder is equipped with：Arbitrary two kinds or whole in semi-transparent semi-reflecting eyeglass, partially reflecting mirror piece and total reflection eyeglass；
Beam splitter assembly is arranged between monochromator and speculum；Switch piece enables component root thereon for driving load-bearing part
Occur in the optical path according to different mode；When monochromator output light beam 100% pass through load-bearing part, be reflected into sample through speculum
Pond reaches detecting system, realizes single beam detection pattern；When monochromator output light beam be divided into two-way across semi-transparent semi-reflecting eyeglass,
What is penetrated is reflected into sample cell arrival detecting system through speculum all the way, and reflection reaches detecting system through reference cell all the way,
Realize the real-time detection pattern of dual-beam；When the light beam of monochromator output is divided into two-way across partially reflecting mirror piece, transmission is all the way
It is reflected into sample cell through speculum and reaches detecting system, reflection reaches detecting system through reference cell all the way, realizes dual-beam
Ratio detection pattern；When the light beam first 100% of monochromator output passes through load-bearing part, being reflected into sample cell through speculum reaches
Detecting system, next switches to total reflection lens reflecting, enables light beam 100% be reflected into reference cell and reaches detecting system, realizes
Dual-beam timesharing detection pattern.
Specifically, beam splitter assembly has following implemented form：
The first is：Load-bearing part is straight line holder；Straight line support level is placed, for placing semi-transparent semi-reflecting eyeglass, part
Reflecting optics and total reflection eyeglass, to avoid blocking light path, therefore are only respectively set in straight line holder left and right ends semi-transparent semi-reflecting
Arbitrary two kinds in eyeglass, partially reflecting mirror piece and total reflection eyeglass；When straight line holder avoids light path, monochromator output
Light beam 100% is reflected into sample cell through speculum and reaches detecting system, realizes single beam detection pattern；Switch piece is stepping electricity
Machine, servo motor or piezoelectric ceramic motor.
It is for second：Load-bearing part is turntable, through-hole, semi-transparent semi-reflecting eyeglass, partially reflecting mirror piece and total reflection eyeglass point
It is not arranged in four quadrants of turntable；Turntable and the light beam of monochromator output are stepper motor, watch in angle, switch piece is set
Take motor or piezoelectric ceramic motor.
The third is：Load-bearing part is strip support plate, through-hole, semi-transparent semi-reflecting eyeglass, partially reflecting mirror piece and total reflection
Eyeglass is arranged along a straight line on strip support plate；Strip support plate and the light beam of monochromator output are in setting angle；Switch piece is
The driving mechanism for the linear motion being connect with strip support plate, such as：Linear motor or electric pushrod.
Advantageous effect：The utility model increases beam splitter assembly in existing spectrophotometer, and light is divided at one
Realized on degree meter single beam, dual-beam ratio, dual-beam in real time, three kinds or more of analysis mould in dual-beam timesharing detection pattern
Formula reaches the using effect of more different type spectrophotometers, the needs of when meeting customer analysis difference sample, improves work
Efficiency reduces equipment cost.
Description of the drawings
Fig. 1 is a specific implementation structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of another specific implementation of the utility model；
Fig. 3 is the structural schematic diagram of the utility model third specific implementation.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
Referring to attached drawing 1,2,3, a kind of combined multi-mode spectrophotometer, it includes：Light source 1, monochromator 2, speculum
4, sample bin 8 and detecting system 7；Reference cell 5 and sample cell 6 are equipped in sample bin 8；
Multi-mode spectrophotometer further includes：Beam splitter assembly 3；Beam splitter assembly 3 includes：Load-bearing part 31 and switch piece
32；Load-bearing part 31 is equipped with：Semi-transparent semi-reflecting eyeglass 34, partially reflecting mirror piece 35 and total reflection eyeglass 36 in arbitrary two kinds or
All；
Beam splitter assembly 3 is arranged between monochromator 2 and speculum 4；Switch piece 32 enables thereon for driving load-bearing part 31
Component occurs in the optical path according to different mode；It is anti-through speculum 4 when the light beam 100% that monochromator 2 exports passes through load-bearing part 31
It injects and reaches detecting system 7 into sample cell 6, realize single beam detection pattern；When the light beam that monochromator 2 exports is across semi-transparent semi-reflecting
Eyeglass 34 (50% reflection, 50% transmission) is divided into two-way, and transmission is reflected into the arrival detection system of sample cell 6 through speculum 4 all the way
System 7, reflection reach detecting system 7 through reference cell 5 all the way, realize the real-time detection pattern of dual-beam；When the light that monochromator 2 exports
Beam passes through partially reflecting mirror piece 35 (reflect and transmit by setting ratio) to be divided into two-way, and transmission is reflected into through speculum 4 all the way
Enter sample cell 6 and reach detecting system 7, reflection reaches detecting system 7 through reference cell 5 all the way, realizes that dual-beam ratio detects mould
Formula；When the light beam first 100% that monochromator 2 exports passes through load-bearing part 31, being reflected into sample cell 6 through speculum 4 reaches detection
System 7, next switches to total reflection eyeglass 36 and reflects, and enables light beam 100% be reflected into reference cell 5 and reaches detecting system 7, realizes
Dual-beam timesharing detection pattern.
Embodiment 2
Referring to attached drawing 1, on the basis of embodiment 1, the composition of beam splitter assembly 3 is specifically limited：
Enlarged fragmentary portion in Fig. 1 is respectively the main view of beam splitter assembly 3, side view, vertical view, and load-bearing part 31 is straight line
Holder, switch piece 32 are stepper motor, servo motor or piezoelectric ceramic motor；Straight line support level is placed, semi-transparent for placing
Semi-reflective mirror piece 34, partially reflecting mirror piece 35 and total reflection eyeglass 36, to avoid blocking light path, therefore only in straight line holder or so two
Arbitrary two kinds in semi-transparent semi-reflecting eyeglass 34, partially reflecting mirror piece 35 and total reflection eyeglass 36 are respectively set in end；When straight line branch
When frame avoids light path, the light beam 100% that monochromator 2 exports is reflected into the arrival detecting system 7 of sample cell 6 through speculum 4, realizes
Single beam detection pattern；The rotation of load-bearing part 31 is driven to select different eyeglasses by switch piece 32, it can be achieved that different analytical models.
Embodiment 3
Referring to attached drawing 2, on the basis of embodiment 1, the composition of beam splitter assembly 3 is specifically limited：
Enlarged fragmentary portion in Fig. 2 is respectively the main view of beam splitter assembly 3, side view, vertical view, and load-bearing part 31 is to turn
Disk, switch piece 32 are stepper motor, servo motor or piezoelectric ceramic motor；Be respectively equipped in four quadrants of turntable through-hole 33,
Semi-transparent semi-reflecting eyeglass 34, partially reflecting mirror piece 35 and total reflection eyeglass 36, the light beam that turntable is exported with monochromator 2 are pressed from both sides in setting
Angle.
When single beam detection pattern：
Switch piece 32 drives in 33 rotational positioning to light path of through-hole, and the light beam that monochromator 2 exports passes through through-hole 33, through reflection
Mirror 4 passes through sample cell 6 to reach detecting system 7；
When dual-beam ratio detection pattern：
In 32 drive part reflecting optics of switch piece, 35 rotational positioning to light path, the light beam that monochromator 2 exports is anti-by part
It penetrates eyeglass 35 to divide for two-way, all the way permeation parts reflecting optics 35, passes through sample cell 6 to reach detecting system 7 through speculum 4, separately
One routing partially reflecting mirror piece 35 reflects, and detecting system 7 is reached through reference cell 5；
When the real-time detection pattern of dual-beam：
Switch piece 32 drives in 34 rotational positioning to light path of semi-transparent semi-reflecting eyeglass, and the light beam that monochromator 2 exports is by semi-transparent half
Anti- eyeglass 34 divides passes through sample cell 6 to reach detecting system 7, separately all the way through semi-transparent semi-reflecting eyeglass 34 for two-way through speculum 4
All the way detecting system 7 is reached through reference cell 5；
When dual-beam timesharing detection pattern：
32 high speed continuous rotation of switch piece, in 33 rotational positioning to light path of through-hole, the light beam that monochromator 2 exports is across logical
Hole 33 passes through sample cell 6 to reach detecting system 7 through speculum 4；When being totally reflected in the rotation to light path of eyeglass 36, monochromator 2 is defeated
The light beam gone out is reflected by total reflection eyeglass 36, and detecting system 7 is reached through reference cell 5；Detecting system 7 is only in through-hole 33 and total reflection
When eyeglass 36 is in light path, starts photoelectricity acquisition, obtain the reference signal and sample signal of sample.
Embodiment 4
Referring to attached drawing 3, on the basis of embodiment 1, the composition of beam splitter assembly 3 is specifically limited：
Enlarged fragmentary portion in Fig. 3 is respectively the main view of beam splitter assembly 3, side view, vertical view, and load-bearing part 31 is strip
Shape support plate, switch piece 32 are the driving mechanism for the linear motion being connect with strip support plate, such as linear motor or electric pushrod；
Strip support plate upper edge straight line is disposed with through-hole 33, semi-transparent semi-reflecting eyeglass 34, partially reflecting mirror piece 35 and total reflection eyeglass 36；
The light beam that strip support plate is exported with monochromator 2 is in setting angle；
When single beam detection pattern：
Switch piece 32 moves in a straight line, and enables in the positioning to light path of through-hole 33, and the light beam that monochromator 2 exports passes through through-hole 33,
Sample cell 6 is passed through to reach detecting system 7 through speculum 4；
When dual-beam ratio detection pattern：
Switch piece 32 moves in a straight line, and enables in the positioning to light path of partially reflecting mirror piece 35, the light beam that monochromator 2 exports is by portion
Point reflecting optics 35 divide for two-way, and permeation parts reflecting optics 35, pass through sample cell 6 to reach detecting system through speculum 4 all the way
7, another way reaches detecting system 7 through reference cell 5；
When the real-time detection pattern of dual-beam：
Switch piece 32 moves in a straight line, and enables in the positioning to light path of semi-transparent semi-reflecting eyeglass 34, and the light beam that monochromator 2 exports is by half
Saturating semi-reflective mirror piece 34 divides passes through sample cell 6 to reach detecting system all the way through semi-transparent semi-reflecting eyeglass 34 for two-way through speculum 4
7, another way reference cell 5 reaches detecting system 7；
When dual-beam timesharing detection pattern：
Switch piece 32 does linear reciprocating motion, and in the positioning to light path of through-hole 33, the light beam that monochromator 2 exports passes through through-hole
33, pass through sample cell 6 to reach detecting system 7 through speculum 4；When being totally reflected in eyeglass 36 to light path, the light of the output of monochromator 2
Beam is reflected by total reflection eyeglass 36, and detecting system 7 is reached through reference cell 5.
Further, to improve switching efficiency, through-hole 33 is disposed adjacent with total reflection eyeglass 36.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (8)
1. a kind of combined multi-mode spectrophotometer, the multi-mode spectrophotometer include：Light source (1), monochromator (2),
Speculum (4), sample bin (8) and detecting system (7)；Reference cell (5) and sample cell (6) are equipped in the sample bin (8)；
It is characterized in that：The multi-mode spectrophotometer further includes：Beam splitter assembly (3)；Beam splitter assembly (3) packet
It includes：Load-bearing part (31) and switch piece (32)；The load-bearing part (31) is equipped with semi-transparent semi-reflecting eyeglass (34), partially reflecting mirror piece
(35) and arbitrary two kinds in total reflection eyeglass (36) or all；
The beam splitter assembly (3) is arranged between the monochromator (2) and the speculum (4)；The switch piece (32) is used
In driving the load-bearing part (31), to switch different mode；When the light beam 100% that the monochromator (2) exports passes through described hold
Holder (31) is reflected into the sample cell (6) through the speculum (4) and reaches the detecting system (7), realizes single beam inspection
Survey pattern；When the light beam that the monochromator (2) exports is divided into two-way across the semi-transparent semi-reflecting eyeglass (34), transmission passes through all the way
The speculum (4) is reflected into the sample cell (6) and reaches the detecting system (7), reflection all the way through the reference cell
(5) detecting system (7) is reached, realizes the real-time detection pattern of dual-beam；When the light beam that the monochromator (2) exports passes through portion
Reflecting optics (35) are divided to be divided into two-way, transmission is reflected into through the speculum (4) described in the sample cell (6) arrival all the way
Detecting system (7), reflection reach the detecting system (7) through the reference cell (5) all the way, realize that dual-beam ratio detects mould
Formula；When the monochromator (2) export light beam first 100% pass through the load-bearing part (31), reflected into through the speculum (4)
Enter the sample cell (6) and reach the detecting system (7), next switches to total reflection eyeglass (36) reflection, enables light beam
100%, which is reflected into the reference cell (5), reaches the detecting system (7), realizes dual-beam timesharing detection pattern.
2. a kind of combined multi-mode spectrophotometer as described in claim 1, it is characterised in that：The load-bearing part (31) is
Straight line holder；The semi-transparent semi-reflecting eyeglass (34), partially reflecting mirror piece (35) is respectively set in the left and right ends of the straight line holder
And arbitrary two kinds in total reflection eyeglass (36)；The straight line support level is placed.
3. a kind of combined multi-mode spectrophotometer as described in claim 1, it is characterised in that：On the load-bearing part (31)
Equipped with through-hole (33), the light beam 100% for enabling the monochromator (2) export passes through.
4. a kind of combined multi-mode spectrophotometer as claimed in claim 3, it is characterised in that：The load-bearing part (31) is
Turntable, the through-hole (33), the semi-transparent semi-reflecting eyeglass (34), the partially reflecting mirror piece (35) and the total reflection eyeglass
(36) it is arranged in four quadrants of the turntable；The turntable and the light beam of the monochromator (2) output are pressed from both sides in setting
Angle.
5. a kind of combined multi-mode spectrophotometer as described in claim 2 or 4, it is characterised in that：The switch piece
(32) it is stepper motor, servo motor or piezoelectric ceramic motor.
6. a kind of combined multi-mode spectrophotometer as claimed in claim 3, it is characterised in that：The load-bearing part (31) is
Strip support plate, the through-hole (33), the semi-transparent semi-reflecting eyeglass (34), the partially reflecting mirror piece (35) and described is all-trans
Eyeglass (36) is penetrated to be arranged along a straight line on the strip support plate；The light of the strip support plate and the monochromator (2) output
Beam is in setting angle.
7. a kind of combined multi-mode spectrophotometer as claimed in claim 6, it is characterised in that：The through-hole (33) and institute
Total reflection eyeglass (36) is stated to be disposed adjacent.
8. a kind of combined multi-mode spectrophotometer as claimed in claims 6 or 7, it is characterised in that：The switch piece
(32) it is the driving mechanism for the linear motion being connect with the strip support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721813515.9U CN207636469U (en) | 2017-12-21 | 2017-12-21 | A kind of combined multi-mode spectrophotometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721813515.9U CN207636469U (en) | 2017-12-21 | 2017-12-21 | A kind of combined multi-mode spectrophotometer |
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| Publication Number | Publication Date |
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| CN207636469U true CN207636469U (en) | 2018-07-20 |
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| CN201721813515.9U Active CN207636469U (en) | 2017-12-21 | 2017-12-21 | A kind of combined multi-mode spectrophotometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941704A (en) * | 2017-12-21 | 2018-04-20 | 徐海峰 | A kind of combined multi-mode spectrophotometer |
| CN114077142A (en) * | 2021-10-29 | 2022-02-22 | 歌尔光学科技有限公司 | Projection device, control method of projection device and projection system |
| CN114077143A (en) * | 2021-10-29 | 2022-02-22 | 歌尔光学科技有限公司 | Projection device, control method of projection device and projection system |
-
2017
- 2017-12-21 CN CN201721813515.9U patent/CN207636469U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941704A (en) * | 2017-12-21 | 2018-04-20 | 徐海峰 | A kind of combined multi-mode spectrophotometer |
| CN114077142A (en) * | 2021-10-29 | 2022-02-22 | 歌尔光学科技有限公司 | Projection device, control method of projection device and projection system |
| CN114077143A (en) * | 2021-10-29 | 2022-02-22 | 歌尔光学科技有限公司 | Projection device, control method of projection device and projection system |
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