CN207423792U - Monochromatic source switching device and the equipment for improving light source stability - Google Patents
Monochromatic source switching device and the equipment for improving light source stability Download PDFInfo
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- CN207423792U CN207423792U CN201721522523.8U CN201721522523U CN207423792U CN 207423792 U CN207423792 U CN 207423792U CN 201721522523 U CN201721522523 U CN 201721522523U CN 207423792 U CN207423792 U CN 207423792U
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Abstract
The utility model discloses a kind of monochromatic source switching device and the equipment for improving light source stability, it is intended to the technical issues of how solution removes the heterogeneous light in incident light.Light source including discoid switching body and at least two different wave lengths, the switching body is by driving stepper motor, rotation, the switching body is equipped with and the corresponding resettlement groove of the light source away from the end face of the stepper motor, be equipped in slot be connected with power supply, the electric connection contacts for providing voltage for the light source, notch is equipped with and the corresponding optical filter of the light source.The utility model switches body by rotating, and so as to change the relative position between light source and light transmission piece, therefore with the rotation of switching body, the monochromatic source of different wave length can be adjusted, switch, so as to ensure the unicity of emergent ray wavelength；The utility model is arranged at closed thermostatic control room by body is switched, and has prevented the temperature influence fluctuated to light source stability.
Description
Technical field
The utility model is related to optical detection apparatus technical fields, and in particular to a kind of monochromatic source switching device and carry
The equipment of high light source stability.
Background technology
Spectrophotometry be by measure measured matter in certain wave strong point or a wavelength range absorbance of light or
Transmitted intensity, the method that qualitative and quantitative analysis is carried out to the substance, Detection wavelength scope can generally include ultraviolet light, visible
Light and near infrared band.Typical trap detecting system includes light source incidence interface and between detection light and sample
The Systems for optical inspection of interaction.When the light of different wave length is continuously irradiated to certain density sample solution, it can obtain
To the corresponding absorption intensity of each incident wavelength, coordinate system is such as established with wavelength (λ) and absorption intensity (A), you can draw this
The absorption spectrum curve of substance.
At present, the absorption spectrum detection device produced both at home and abroad, Ordinary Light Sources Have such as halogen lamp, deuterium lamp, xenon lamp etc., passes through filter
Mating plate or optical-mechanical system export after required Detection wavelength is selected.Peak position is absorbed for detected sample, passes through monochromatic system
After system selection wavelength, external light source signal is introduced into detecting system.
In as strict as possible, Lambert-Beer's law is only applicable to monochromatic light, but since instrument resolution capability is limited, incident light is real
Border for a very narrow-band bands of a spectrum.Due to the dispersion element light splitting energy force difference in spectrophotometer beam splitting system, i.e., in operating wave
Long nearby more or less also to contain other heterogeneous lights, stray light (non-absorbing) can also have an impact Beer law, these are miscellaneous
Coloured light will cause the deviation of Lambert-Beer's law.
Therefore, how to remove the heterogeneous light in incident light becomes people's technical barrier urgently to be resolved hurrily.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of monochromatic source switching device and improve light stability
The equipment of property, by switching the monochromatic light of different wave length, has prevented to be mixed into the possibility of heterogeneous light in incident ray.
In order to solve the above technical problems, the utility model adopts the following technical solution：
A kind of monochromatic source switching device is designed, the light source including discoid switching body and at least two different wave lengths,
The switching body is equipped with and institute by driving stepper motor, rotation, the switching body away from the end face of the stepper motor
State the corresponding resettlement groove of light source, be equipped in slot be connected with power supply, the electric connection contacts for providing voltage for the light source, slot
Mouth is equipped with and the corresponding optical filter of the light source.
Preferably, the top of the switching body is equipped with light source position detection unit.
Preferably, the light source position detection unit is photoelectrical coupler or photoelectric coupling switch.
Preferably, the light source has 10.
Preferably, the light source is monochromatic LED light.
Preferably, a diameter of 90~95mm of the switching body.
Another of the utility model is designed to provide a kind of equipment for improving light source stability, to solve temperature change
Influence to light source stability.
In order to solve the above technical problems, the utility model adopts the following technical solution：
Design it is a kind of improve light source stability equipment, including above-mentioned monochromatic source switching device and by motor fixing frame,
The thermostatic control room of incident window stent and U-shaped board composition, the switching body is arranged in the thermostatic control room, described to state
Thermostatic control chamber interior is equipped with temperature detector, top is equipped with radiator fan；The incident window stent is equipped with and the light
The corresponding light outlet in source and light transmission piece.
Compared with prior art, the advantageous effects of the utility model are：
1. the utility model switches body by rotating, so as to change the relative position between light source and light transmission piece, therefore companion
With the rotation of switching body, the monochromatic source of different wave length can be adjusted, switch, so as to ensure the single of emergent ray wavelength
Property.
2. the utility model is arranged at closed thermostatic control room by body is switched, it is fluctuated to light source temperature has been prevented
The influence of stability.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model；
In figure, 1 is switching body, and 2 be light source, and 3 be stepper motor, and 4 be resettlement groove, and 5 be motor fixing frame, and 6 be to be electrically connected
Contact point, 7 be optical filter, and 8 be U-shaped board, and 9 be light source position detection unit, and 10 be light transmission piece, and 11 be temperature detector, and 12 are
Radiator fan, 13 be incident window stent, and 14 be light outlet.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment simply uses
It is described in detail the utility model, does not limit the scope of the utility model in any way.
The devices such as involved parts, structure, mechanism or sensor in following embodiment, unless otherwise instructed, then
For conventional commercial product.
Embodiment 1：A kind of monochromatic source switching device, referring to Fig. 1, the discoid switching body 1 including a diameter of 93mm
With the light source 2 of 2~10 different wave lengths（It is monochromatic LED light in the present embodiment）, switch body 1 and driven, revolved by stepper motor 3
Turn, switching body 1 away from the end face of stepper motor 3 be equipped with 2 corresponding resettlement groove 4 of light source, be equipped in slot and power supply phase
Even, the electric connection contacts 6 for providing voltage for light source 2, notch are equipped with and 2 corresponding optical filter 7 of light source.
The top for switching body 1 is equipped with light source position detection unit 9.
Embodiment 2：A kind of equipment for improving light source stability, referring to Fig. 2, including above-mentioned monochromatic source switching device and by
The thermostatic control room that motor fixing frame 5, incident window stent 13 and U-shaped board 8 form, switching body 1 are arranged at thermostatic control room
It is interior, it states thermostatic control chamber interior and is equipped with radiator fan 12 equipped with temperature detector 11, top；Incident window stent 13 be equipped with
2 corresponding light outlet 14 of light source and light transmission piece 10.
The operate with method of above-mentioned monochromatic source switching device and the equipment of raising light source stability is as follows：Connect electricity
Source, stepper motor 3 drive rotating body 1 to rotate, with conversion and 14 corresponding monochromatic light ray source category of light outlet, radiation air
Fan 12 is used for the temperature of regulating thermostatic control room, and temperature detector 11 is used for the real-time monitoring of temperature；Thermostatic control room ensure that
Temperature is stablized relatively, and optical filter 7 can reduce the influence of veiling glare to greatest extent.
The utility model is described in detail above in conjunction with drawings and examples, still, the skill of technical field
Art personnel, can also be to each specific in above-described embodiment it is understood that on the premise of the utility model aims are not departed from
Parameter changes, and forms multiple specific embodiments, is the common excursion of the utility model, no longer detailed one by one herein
It states.
Claims (7)
1. a kind of monochromatic source switching device, which is characterized in that including discoid switching body and at least two different wave lengths
Light source, the switching body are equipped with by driving stepper motor, rotation, the switching body away from the end face of the stepper motor
With the corresponding resettlement groove of the light source, it is equipped in the resettlement groove slot and is connected with power supply, for providing voltage for the light source
Electric connection contacts, the resettlement groove notch are equipped with and the corresponding optical filter of the light source.
2. monochromatic source switching device according to claim 1, which is characterized in that be equipped in the top of the switching body
Light source position detection unit.
3. monochromatic source switching device according to claim 2, which is characterized in that the light source position detection unit is light
Electric coupler or photoelectric coupling switch.
4. monochromatic source switching device according to claim 1, which is characterized in that the light source has 10.
5. monochromatic source switching device according to claim 1, which is characterized in that the light source is monochromatic LED lamp.
6. monochromatic source switching device according to claim 1, which is characterized in that a diameter of the 90 of the switching body~
95mm。
7. a kind of equipment for improving light source stability, which is characterized in that switch including monochromatic source described in claim 1 and fill
The thermostatic control room put and be made of motor fixing frame, incident window stent and U-shaped board, the switching body are arranged at institute
It states in thermostatic control room, the thermostatic control chamber interior is equipped with temperature detector, top is equipped with radiator fan；The incident window
Stent is equipped with light outlet corresponding with the light source and light transmission piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522523.8U CN207423792U (en) | 2017-11-15 | 2017-11-15 | Monochromatic source switching device and the equipment for improving light source stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522523.8U CN207423792U (en) | 2017-11-15 | 2017-11-15 | Monochromatic source switching device and the equipment for improving light source stability |
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| CN207423792U true CN207423792U (en) | 2018-05-29 |
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| CN201721522523.8U Active CN207423792U (en) | 2017-11-15 | 2017-11-15 | Monochromatic source switching device and the equipment for improving light source stability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374555A (en) * | 2018-12-14 | 2019-02-22 | 北京倍肯恒业科技发展股份有限公司 | Twin-runner type Physico-chemical tests system |
| CN110261308A (en) * | 2019-06-20 | 2019-09-20 | 广州纯元科技有限公司 | A kind of heavy metal detector that the detection effect with handoff functionality is good |
| CN110850023A (en) * | 2019-11-07 | 2020-02-28 | 上海电力大学 | Photocatalysis performance testing device under monochromatic light irradiation |
-
2017
- 2017-11-15 CN CN201721522523.8U patent/CN207423792U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374555A (en) * | 2018-12-14 | 2019-02-22 | 北京倍肯恒业科技发展股份有限公司 | Twin-runner type Physico-chemical tests system |
| CN109374555B (en) * | 2018-12-14 | 2022-01-14 | 北京倍肯恒业科技发展股份有限公司 | Double-runner type physical and chemical detection system |
| CN110261308A (en) * | 2019-06-20 | 2019-09-20 | 广州纯元科技有限公司 | A kind of heavy metal detector that the detection effect with handoff functionality is good |
| CN110261308B (en) * | 2019-06-20 | 2021-08-20 | 深圳市仲达科技有限公司 | Heavy metal detector with switching function |
| CN110850023A (en) * | 2019-11-07 | 2020-02-28 | 上海电力大学 | Photocatalysis performance testing device under monochromatic light irradiation |
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