CN204128949U - Based on the multi-wavelength online detection instrument of single flow cell of optical fiber - Google Patents
Based on the multi-wavelength online detection instrument of single flow cell of optical fiber Download PDFInfo
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- CN204128949U CN204128949U CN201420394410.4U CN201420394410U CN204128949U CN 204128949 U CN204128949 U CN 204128949U CN 201420394410 U CN201420394410 U CN 201420394410U CN 204128949 U CN204128949 U CN 204128949U
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Abstract
The utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, relate to a kind of optical instrument that utilizes and measure the chemistry of material or the equipment of physical property, particularly relate to a kind of optical instrument mensuration that utilizes and flow through the chemistry of the material of cuvette or the equipment of physical property.Its objective is that a kind of structure is simple, cost is low, stream volume is little in order to provide, flow cell is placed in outside Instrument shell, the multi-wavelength online detection instrument of the single flow cell based on optical fiber of multi-wavelength can be detected simultaneously.The utility model, based on the multi-wavelength online detection instrument of single flow cell of optical fiber, comprising: light supply apparatus, flow cell, fibre bundle optical fiber and first receiving device more than one point.Multi-wavelength online detection instrument of the present utility model, its structure is simple, and production cost is low, do not need spectrometer and grating can realize multi-wavelength and detect simultaneously, and flow cell is external, reduces manifold volume, improves purification performance.The utility model is used for the photodetector field of liquid chromatograph or tomographic system.
Description
Technical field
The utility model relates to a kind of optical instrument that utilizes and measures the chemistry of material or the equipment of physical property, particularly relates to a kind of optical instrument mensuration that utilizes and flows through the chemistry of the material of cuvette or the equipment of physical property.
Background technology
At present, need to be connected on thread detector after general chromatographic column or chromatographic column, comprise the detecting devices such as ultraviolet-visible, conductance, pH, evaporative light-scattering, differential refraction, fluorescence, need to be configured according to different application, as shown in Figure 6.
Wherein online ultraviolet and visible light detector configure one the most widely, and the structure of the on-line ultraviolet detector that different company provides also exists larger difference.As:
1, online three wavelength detecting equipment in complete wavelength range:
In complete wavelength range, online three wavelength detecting equipment as shown in Figure 7, and this design adopts xenon lamp to do light source, adopts arbitrary three wavelength to carry out on-line checkingi in 190-700nm wavelength coverage simultaneously.But the design of this light channel structure is complicated, and easily loses due to the continuous upset of grating and affect serviceable life designed life, maintenance cost is high simultaneously.
2, Single wavelength online detection instrument:
Single wavelength online detection instrument as shown in Figure 8, this employing mercury lamp or zinc lamp are light source, optical filter is adopted to carry out the selection of wavelength, but an optical filter can only be selected to gather the data of a wavelength at every turn, three optical filters can be placed at most on instrument, carry out manual rotation because of different requirement of experiment and select optical filter.Although the design cost of this structure greatly reduces, only have the on-line checkingi of a wavelength at every turn, the online detection requirements of the two or more wavelength of client's needs cannot be met.
3, the long online detection instrument of the all-wave of high pressure liquid phase:
The long online detection instrument of all-wave of high pressure liquid phase as shown in Figure 9, Figure 10, is the long on-line checkingi device of all-wave, can carries out two dimensional image scanning, but expensive.This design is built in by flow cell inside instrument cabinet in addition, introduces cabinet inside measurement data by pipeline.Shortcoming is that stream volume increases, and generally do not regather for detection and detect rear sample, impact is little; But for preparation, pipeline dead volume is crossed after conference causes post and is spread increase, and reduces separating effect.
4, variable-wavelength measure equipment:
As shown in figure 11, to variable-wavelength measure equipment the shortcoming of this equipment to do Single wavelength on-line checkingi, and flow cell needs built-in increase stream dead volume and increases sample diffusion.
Utility model content
The utility model will solve above technical matters and provide the stream volume that a kind of structure is simple, cost is low, flow cell is external and prepared by reduction, and can detect the multi-wavelength online detection instrument of the single flow cell based on optical fiber of multiple wavelength simultaneously.
The utility model, based on the multi-wavelength online detection instrument of single flow cell of optical fiber, comprising: light supply apparatus, flow cell, fibre bundle optical fiber and first receiving device more than one point; Wherein, described light supply apparatus comprises light source and convex lens; Described light source is positioned at convex lens front; Described light source is xenon lamp, deuterium lamp, mercury lamp, mercury tungsten lamp, halogen tungsten lamp, zinc lamp or LED; The power of described light source is 1 ~ 200W; Described flow cell length is 1 ~ 20mm, and internal diameter is 0.25 ~ 50.8mm; Described fibre bundle optical fiber more than one point is the multi-core fiber of the first binding or the optical fiber of the first band fiber splitter; The optical fiber of the first described band fiber splitter comprises the first fiber splitter (Beam Spliter) and the first standard fiber; Fiber entrance and the fiber outlet of the first described fiber splitter are all connected to the first standard fiber; Described first receiving device comprises organizes receiving element more, and described receiving element often group comprises first optical filter and first photodiode, and the first described optical filter is positioned at the first photodiode front; The wavelength of the first described optical filter is 190 ~ 800nm; Described light supply apparatus rear is provided with flow cell; Described light supply apparatus is communicated with by optical fiber with between flow cell; Described flow cell rear is provided with first receiving device; Described flow cell is communicated with by fibre bundle optical fiber more than one point with between first receiving device; Optical fiber between described light supply apparatus and flow cell and fibre bundle optical fiber more than one point are one or more the combination in homogenize uvioresistant passivation optical fiber, common homogenize optical fiber, uvioresistant passivation optical fiber (RS UV Fiber), ordinary optic fibre.
Photodiode cost in receiving trap described in the utility model significantly lower than spectrometer and grating, thus saves manufacturing cost.
Light supply apparatus described in the utility model, convex lens position enters light source rear end, and directly with Fiber connection after optically focused, optical fiber has the SMA905 joint of standard.
Adopt Fiber connection in the utility model, light path can bend, thus flow cell can be placed in cabinet outside, reduces fluid circuit length, significantly reduces stream volume, improves preparative separation efficiency.
Receiving element in first receiving device described in the utility model, can choose one of them for reference, the decay of real-time detection light source, for correcting the data measured by first receiving device.The receiving element of set reference, the fixed wave length that the sample that optical filter selects certain to flow through flow cell does not absorb, generally can select long wavelength.Also can not establish reference, because single experimental period is shorter, and the life-span of lamp is very long, and the light intensity change of short time can be ignored.
Further, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the quantity of the receiving element in described first receiving device is 2 ~ 6.
Receiving element in first receiving device described in the utility model, quantity is 2 ~ 6, and if do not arranged reference, then the number of wavelengths that can simultaneously detect is 2 ~ 6; As arranged reference, then the number of wavelengths that can simultaneously detect is 2 ~ 5.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the wavelength of described optical filter is 206,214,254,280,313,365,405,436 or 546nm.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the optical fiber between described light supply apparatus and flow cell is homogenize uvioresistant passivation optical fiber, and described fibre bundle optical fiber more than one point is uvioresistant passivation optical fiber.
Light supply apparatus described in the utility model and the optical fiber between flow cell are homogenize uvioresistant passivation optical fiber, and described fibre bundle optical fiber more than one point is uvioresistant passivation optical fiber, can improve the life-span of optical uniformity and optical fiber.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the optical fiber between described light supply apparatus and flow cell, is provided with collimating mirror between optical fiber and flow cell.
Between the optical fiber be connected with flow cell front end and flow cell, be provided with collimating mirror in the utility model, can the diverging light out of fiber optic conduction be transferred to directional light, be particularly useful for the situation that flow cell light path is longer.Light path is shorter, and the length as flow cell is 2mm, then can not establish collimating mirror.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, the first standard fiber in the optical fiber of the first described band fiber splitter and the first fiber splitter are integral type or split type, and incorporated light delicate fingers first standard fiber and the first fiber splitter are an entirety; Split type finger first standard fiber is separated with the first fiber splitter, and optical fiber is connected to optical splitter end face by interface.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and described fibre bundle more than a point is that one-to-two is to one point six.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the optical fiber between described light supply apparatus and flow cell is the second standard fiber.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the optical fiber between described light supply apparatus and flow cell is one-to-two fibre bundle optical fiber, and described one-to-two fibre bundle optical fiber rear is also provided with the second receiving trap; Described one-to-two fibre bundle optical fiber is the multi-core fiber of the second binding or the optical fiber of the second band fiber splitter; The optical fiber of the second described band fiber splitter comprises the second fiber splitter and the 3rd standard fiber; The fiber entrance of the second described fiber splitter and fiber outlet are all connected to the 3rd standard fiber; The second described receiving trap comprises the second photodiode.
Light supply apparatus described in the utility model and the optical fiber between flow cell are one-to-two fibre bundle optical fiber, and the optical fiber rear between described light supply apparatus and flow cell is also provided with the second receiving trap; Its objective is to arrange reference, the decay of real-time detection light source, for correcting the data measured by first receiving device.
Optionally, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the first standard fiber in the optical fiber of the first described band fiber splitter and the first fiber splitter are integral type or split type.
Further, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, the second described receiving trap also comprises the second optical filter, and the second described optical filter is positioned at the second photodiode front, and the wavelength of the second described optical filter is 190 ~ 800nm.
Further, the utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber, and the wavelength of the second optical filter in the second described receiving trap is 206,214,254,280,313,365,405,436 or 546nm.
The utility model is based on the multi-wavelength online detection instrument of single flow cell of optical fiber and the difference of prior art:
1, the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the present utility model achieves does not need the multi-wavelength under spectrometer or upset grating condition to detect simultaneously.
2, the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the present utility model adopts optical fiber light-guiding, achieves flow cell external, decreases fluid circuit length, thus significantly reduce stream volume, improve the purification performance of separation efficiency and instrument.
3, the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the present utility model adopts photodiode photosensitive, significantly reduces cost, improves competitive edge, and photosensitive property is stablized.
4, the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the present utility model is provided with reference, that is: in first receiving device, select a receiving element the data obtained as reference, and between light supply apparatus and flow cell one-to-two fibre bundle optical fiber, one-to-two fibre bundle optical fiber rear is provided with the second receiving trap, get data that the second receiving trap does as reference, can the decay of detection light source in real time, thus the data recorded during correct detection sample, make acquired results more accurate.
Be described further below in conjunction with the multi-wavelength online detection instrument of accompanying drawing to the single flow cell based on optical fiber of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of band fiber splitter after flow cell, wherein, 1 is light source, 2 is convex lens, 3 is the second standard fiber, and 4 is flow cell, and 5 is the first fiber splitter, 6 is optical filter, and 7 is photodiode; 13 is the first standard fiber;
Fig. 2 is the structural representation that the utility model establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the multi-core fiber of binding after flow cell, wherein 1 is light source, 2 is convex lens, 3 is the second standard fiber, 4 is flow cell, 6 is optical filter, and 7 is photodiode, and 11 is the multi-core fiber of the first binding;
Fig. 3 is the optical fiber that the utility model establishes band fiber splitter before flow cell, and in the second receiving trap, do not establish the structural representation of the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of optical filter, wherein 1 is light source, and 2 is convex lens, 4 is flow cell, 5 is the first fiber splitter, and 6 is optical filter, and 7 is photodiode, 8 is the second fiber splitter, 9 is the second photodiode, and 13 is the first standard fiber, and 14 is the 3rd standard fiber;
Fig. 4 is the multi-core fiber that the utility model establishes binding before flow cell, and in the second receiving trap, do not establish the structural representation of the multi-wavelength online detection instrument of the single flow cell based on optical fiber of optical filter, wherein 1 is light source, and 2 is convex lens, and 4 is flow cell, 5 is the first fiber splitter, 6 is optical filter, and 7 is photodiode, and 9 is the second photodiode, 12 is the multi-core fiber of the second binding, 13 first standard fibers;
Fig. 5 is the optical fiber that the utility model establishes band fiber splitter before flow cell, and establishes the structural representation of the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of optical filter in the second receiving trap, and wherein 1 is light source, 2 is convex lens, 4 is flow cell, and 5 is the first fiber splitter, and 6 is optical filter, 7 is photodiode, 8 is the second fiber splitter, and 9 is the second photodiode, and 10 is the second optical filter, 13 first standard fibers, 14 is the 3rd standard fiber;
Fig. 6 is chromatography flow circuit diagram;
Fig. 7 is the structural representation of online three wavelength detecting equipment in complete wavelength range;
Fig. 8 is the structural representation of Single wavelength online detection instrument;
Fig. 9 is the structural representation of the long online detection instrument of all-wave of high pressure liquid phase;
Figure 10 is the cut-open view of the long online detection instrument of all-wave of high pressure liquid phase;
Figure 11 is the structural representation of variable-wavelength measure equipment.
Embodiment
Embodiment 1
As shown in Figure 1, the present embodiment establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of band fiber splitter after flow cell, comprising: light supply apparatus, optical fiber, flow cell fibre bundle optical fiber and first receiving device more than 4, one point; Wherein, light supply apparatus comprises light source 1 and convex lens 2; Light source 1 is positioned at convex lens 2 front; Light source 1 is deuterium lamp lamp, and its power is 30W; Optical fiber is the second standard fiber 3; Flow cell length is 10mm, and internal diameter is 0.5mm; Fibre bundle optical fiber more than one point is the optical fiber of the first band fiber splitter; The optical fiber of the first band fiber splitter comprises the first fiber splitter 5 and the first standard fiber 13; The fiber entrance of the first fiber splitter 5 and fiber outlet are all connected to the first standard fiber 13; First fiber splitter 5 and the first standard fiber 13 are a non-removable entirety; First receiving device comprises 3 groups of receiving elements, often organizes receiving element and comprises first optical filter 6 and first photodiode 7, first optical filter 6 is positioned at the first photodiode 7 front; The wavelength of three the first optical filters 6 is respectively 214nm, 254nm and 280nm; Light supply apparatus rear is provided with flow cell 4; Flow cell 4 rear is provided with first receiving device; Be communicated with by optical fiber between light supply apparatus with flow cell 4; Flow cell 4 is with the optical fiber of fiber splitter to be communicated with between first receiving device by first; Optical fiber between light supply apparatus and flow cell is the second standard fiber 3; The optical fiber of the second standard fiber 3 and the first band fiber splitter is uvioresistant passivation optical fiber (RS UV Fiber).
Embodiment 2
As shown in Figure 1, the present embodiment establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of band fiber splitter after flow cell, be with the difference of embodiment 1: the first fiber splitter 5 has another name called optical fiber splitter, dismountable with the first standard fiber 13, first standard fiber 13 and the first fiber splitter 5 are separable two parts, and the first standard fiber 13 is connected to the end face of the first fiber splitter 5 by interface.。
Embodiment 3
As shown in Figure 1, the present embodiment establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of band fiber splitter after flow cell, is: in first receiving device, the wavelength of three the first optical filters 6 is respectively 254,280 and 750nm with the difference of embodiment 1.
Be determined by experiment sample to certain wavelength without absorption or seldom absorb, be generally the light of long wavelength, can be got it for reference if wavelength is that the first photodiode 7 after the optical filter of 750nm surveys the data obtained as reference, for correcting surveyed sample data.
Embodiment 4
As shown in Figure 2, the present embodiment establishes the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the multi-core fiber of binding after flow cell, is with the difference of embodiment 1: fibre bundle optical fiber more than one point is the multi-core fiber 11 of the first binding.
Embodiment 5
As shown in Figure 3, the present embodiment establishes the optical fiber of band fiber splitter before flow cell, and in the second receiving trap, do not establish the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of optical filter, and the difference of embodiment 1 is: the optical fiber between light supply apparatus and flow cell 4 is one-to-two fibre bundle optical fiber, and one-to-two fibre bundle optical fiber rear is also provided with the second receiving trap; One-to-two fibre bundle optical fiber is the optical fiber of the second band fiber splitter; The optical fiber of the second band fiber splitter comprises the second fiber splitter 8 and the 3rd standard fiber 14; The fiber entrance of the second fiber splitter 8 and fiber outlet are all connected to the 3rd standard fiber 14; Second receiving trap comprises second photodiode 9.
Embodiment 6
As shown in Figure 4, the present embodiment establishes the multi-core fiber of binding before flow cell, and in the second receiving trap, do not establish the multi-wavelength online detection instrument of the single flow cell based on optical fiber of optical filter, and the difference of embodiment 5 is: the one-to-two fibre bundle optical fiber between light supply apparatus and flow cell is the multi-core fiber 12 of the second binding.
Embodiment 7
As shown in Figure 5, the present embodiment establishes the optical fiber of band fiber splitter before flow cell, and in the second receiving trap, establish the multi-wavelength online detection instrument of the single flow cell based on optical fiber of the optical fiber of optical filter, comprising: light supply apparatus, one-to-two fibre bundle optical fiber, flow cell fibre bundle optical fiber, first receiving device and the second receiving trap more than 4, one point; Wherein, light supply apparatus comprises light source 1 and convex lens 2, and light source 1 is positioned at convex lens 2 front; Light source 1 is flicker xenon lamp, and power is 5W; One-to-two fibre bundle optical fiber comprises the second fiber splitter 8 and the 3rd standard fiber 14; The fiber entrance of the second fiber splitter 8 and fiber outlet are all connected to the 3rd standard fiber 14; An entirety is formed by the second fiber splitter 8 and the 3rd standard fiber 14; The length of flow cell 4 is 2mm, and internal diameter is 1mm; Fibre bundle optical fiber more than one point comprises the first fiber splitter (Beam Spliter) 5 and the first standard fiber 13; The fiber entrance of the first fiber splitter 5 and fiber outlet are all connected to the first standard fiber 13; An entirety is formed by the first fiber splitter (Beam Spliter) 5 and the first standard fiber 13; First receiving device comprises 3 groups of receiving elements, often organizes receiving element and comprises the front that first optical filter 6 and first photodiode 7, first optical filter 6 are positioned at the first photodiode 7; The wavelength of 3 the first optical filters 6 is respectively 206nm, 254nm and 280nm; Second receiving trap comprises the front that second optical filter 10 and second photodiode 9, second optical filter 10 are positioned at the second photodiode 9; The wavelength of the second optical filter 10 is 280nm, and the second photodiode 9 measured values is as reference value; Light supply apparatus rear is provided with one-to-two fibre bundle optical fiber, and one-to-two fibre bundle optical fiber rear is respectively equipped with flow cell 4 and the second receiving trap, and flow cell 3 rear is provided with fibre bundle optical fiber more than one point, and the rear of fibre bundle optical fiber more than one point is provided with first receiving device; Collimating mirror is provided with between one-to-two fibre bundle optical fiber and flow cell 4; First standard fiber 13 and the 3rd standard fiber 14 are uvioresistant passivation optical fiber (RS UV Fiber).
As shown in Figure 1 and Figure 2, the principle of work of embodiment 1-4 is: the light planoconvex lens 2 that light source 1 sends imports in flow cell 4 by the second standard fiber 3 after focusing on; Light, through after flow cell 4, imports fibre bundle optical fiber more than one point into, then separates three light paths by fibre bundle optical fiber more than one point, import three receiving elements respectively into; Light after three the first optical filters 6 filter, enters the first photodiode 7, by the first photodiode 7, light signal is converted to electric signal respectively, thus the power of display light signal.
Be determined by experiment sample to certain wavelength without absorption or seldom absorb, be generally the light of long wavelength, so get it in embodiment 3 for reference.Be that the first photodiode 7 after the optical filter of 750nm surveys the data obtained as reference, for correcting surveyed sample data as got wavelength.
As shown in Figure 3,4, the principle of work of embodiment 5,6 is: after the light planoconvex lens 2 that light source 1 sends focuses on, be divided into two light paths by one-to-two fibre bundle, a light path circulates in pond 4, and another light path imports the second photodiode 9 into; Light through flow cell 4 enters fibre bundle more than a point, then separates three light paths by fibre bundle more than a point, imports three receiving elements respectively into; Light after three the first optical filters 6 filter, enters the first photodiode 7 respectively; The light signal entering the first photodiode 7 and the second photodiode 9 is converted into electric signal, thus the power of display light signal.
Get the second photodiode 9 and survey the data obtained as reference, for correcting surveyed sample data.
As shown in Figure 5, the principle of work of embodiment 7 is: after the light planoconvex lens 2 that light source 1 sends focuses on, be divided into two light paths by one-to-two fibre bundle, a light path circulates in pond 4, and another light path imports the second receiving trap into; Light through flow cell 4 enters fibre bundle more than a point, then separates three light paths by fibre bundle more than a point, imports three receiving elements respectively into; Light after three the first optical filters 6 filter, enters the first photodiode 7 respectively; The light importing the second receiving trap into, after the second optical filter 10 filters, enters the second photodiode 9; The light signal entering the first photodiode 7 and the second photodiode 9 is converted into electric signal, thus the power of display light signal.
After second optical filter 10 of learning from else's experience filters, the second photodiode 9 surveys the data obtained as reference, for correcting surveyed sample data.After adding the second optical filter 10 in the present embodiment, because wavelength is single, the impact that can better abate the noise.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (11)
1. based on a multi-wavelength online detection instrument for single flow cell of optical fiber, it is characterized in that: comprise light supply apparatus, flow cell, fibre bundle optical fiber and first receiving device more than one point; Wherein, described light supply apparatus comprises light source and convex lens; Described light source is positioned at convex lens front; Described light source is xenon lamp, deuterium lamp, mercury lamp, mercury tungsten lamp, halogen tungsten lamp, zinc lamp or LED; The power of described light source is 1 ~ 200W; Described flow cell length is 1 ~ 20mm, and internal diameter is 0.25 ~ 50.8mm; Described fibre bundle optical fiber more than one point is the multi-core fiber of the first binding or the optical fiber of the first band fiber splitter; The optical fiber of the first described band fiber splitter comprises the first fiber splitter and the first standard fiber; Fiber entrance and the fiber outlet of the first described fiber splitter are all connected to the first standard fiber; Described first receiving device comprises organizes receiving element more, and described receiving element often group comprises first optical filter and first photodiode, and the first described optical filter is positioned at the first photodiode front; The wavelength of the first described optical filter is 190 ~ 800nm; Described light supply apparatus rear is provided with flow cell; Described light supply apparatus is communicated with by optical fiber with between flow cell; Described flow cell rear is provided with first receiving device; Described flow cell is communicated with by fibre bundle optical fiber more than one point with between first receiving device; Optical fiber between described light supply apparatus and flow cell and fibre bundle optical fiber more than one point are one or more the combination in uvioresistant passivation optical fiber, ordinary optic fibre.
2. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: the quantity of the receiving element in described first receiving device is 2 ~ 6.
3. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: described uvioresistant passivation optical fiber is homogenize uvioresistant passivation optical fiber, and described ordinary optic fibre is common homogenize optical fiber.
4. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 3, it is characterized in that: the optical fiber between described light supply apparatus and flow cell is homogenize uvioresistant passivation optical fiber, and described fibre bundle optical fiber more than one point is uvioresistant passivation optical fiber.
5. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: the optical fiber between described light supply apparatus and flow cell, is provided with collimating mirror between optical fiber and flow cell.
6. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: the first standard fiber in the optical fiber of the first described band fiber splitter and the first fiber splitter are integral type or split type.
7. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: described fibre bundle more than a point is that one-to-two is to one point six.
8. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, is characterized in that: the optical fiber between described light supply apparatus and flow cell is the second standard fiber.
9. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 1, it is characterized in that: the optical fiber between described light supply apparatus and flow cell is one-to-two fibre bundle optical fiber, described one-to-two fibre bundle optical fiber rear is also provided with the second receiving trap; Described one-to-two fibre bundle optical fiber is the multi-core fiber of the second binding or the optical fiber of the second band fiber splitter; The optical fiber of the second described band fiber splitter comprises the second fiber splitter and the 3rd standard fiber; The fiber entrance of the second described fiber splitter and fiber outlet are all connected to the 3rd standard fiber; The second described receiving trap comprises the second photodiode.
10. the multi-wavelength online detection instrument of the single flow cell based on optical fiber according to claim 9, it is characterized in that: the second described receiving trap also comprises the second optical filter, the second described optical filter is positioned at the second photodiode front, and the wavelength of the second described optical filter is 190 ~ 800nm.
The multi-wavelength online detection instrument of 11. single flow cells based on optical fiber according to claim 1 or 10, is characterized in that: the first described optical filter and the wavelength of the second optical filter are 206,214,254,280,313,365,405,436 or 546nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420394410.4U CN204128949U (en) | 2014-07-16 | 2014-07-16 | Based on the multi-wavelength online detection instrument of single flow cell of optical fiber |
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| CN201420394410.4U CN204128949U (en) | 2014-07-16 | 2014-07-16 | Based on the multi-wavelength online detection instrument of single flow cell of optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062235A (en) * | 2014-07-16 | 2014-09-24 | 北京佰纯润宇生物科技有限公司 | Optical-fiber-based multi-wavelength online detection device of single flow cell |
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2014
- 2014-07-16 CN CN201420394410.4U patent/CN204128949U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062235A (en) * | 2014-07-16 | 2014-09-24 | 北京佰纯润宇生物科技有限公司 | Optical-fiber-based multi-wavelength online detection device of single flow cell |
| CN104062235B (en) * | 2014-07-16 | 2016-06-08 | 北京佰纯润宇生物科技有限公司 | Based on the multi-wavelength online detection instrument of single flow-through cell of optical fiber |
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