CN206756690U - A kind of reflective optical fiber sensor device for being used to measure solution concentration - Google Patents
A kind of reflective optical fiber sensor device for being used to measure solution concentration Download PDFInfo
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- CN206756690U CN206756690U CN201720373306.0U CN201720373306U CN206756690U CN 206756690 U CN206756690 U CN 206756690U CN 201720373306 U CN201720373306 U CN 201720373306U CN 206756690 U CN206756690 U CN 206756690U
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- optical fiber
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- reflection
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Abstract
The utility model discloses a kind of reflective optical fiber sensor device for being used to measure solution concentration, including light source, y-type optical fiber, reflection-type optical fibre sensor, fiber spectrometer, sensor fastening device, reflection-type optical fibre sensor is fixed on sensor fastening device, reflection-type optical fibre sensor one end is immersed in solution to be measured, the other end is connected with y-type optical fiber one end, the y-type optical fiber other end is divided into Liang Ge branches, is connected respectively with light source and fiber spectrometer.The reflection-type optical fibre sensor profile is a stainless steel cylinder, and its underpart is provided with opening, and stainless steel cylindrical base pastes one piece of completely reflecting mirror.A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, with miniaturization, intelligent, family oriented, it is easy to operate, it is safe, testing result is directly perceived, reproducible, and cost is cheap, the advantages that non-secondary pollution, meet the development of society and the needs of people's living standard raising.
Description
Technical field
The utility model patent is related to fiber spectrum, optical sensing technology and photoelectric detection technology field, more particularly to one
Kind is used for the reflective optical fiber sensor device for measuring solution concentration.
Background technology
When irradiation of the material by light (electromagnetic wave), it may occur that phenomena such as the absorption of light, reflection or transmission.Spectrum analysis
Using the relation between the composition of these phenomenons and material, structure, physicochemical characteristics, differentiate material and determine its chemical group
Into and relative amount.Compared with conventional art, spectral analysis technique has that method of testing is simple, speed is fast, precision is high, result is steady
It is fixed, to tester without specialization requires, test process is pollution-free, can constantly be expanded without destructive, test scope the advantages that,
Oneself is widely used in the multiple fields such as petrochemical industry, agricultural, food, Industry Control, medical science.
With the development and the improvement of people's living standards of society, people are to environmental monitoring, food analysis and drugs analysis
The cry more and more higher of scene, family oriented, to the minimizing of environmental monitoring, food analysis and drugs analysis instrument, intelligent,
Easy to operate, safe, testing result intuitively proposes active demand.
Utility model content
In order to overcome the shortcomings of existing research, the purpose of this utility model, which is to provide, a kind of to be used to measure solution concentration
Reflective optical fiber sensor device, there is miniaturization, intelligent, family oriented, easy to operate, safe, testing result
Intuitively, reproducible, cost is cheap, the advantages that non-secondary pollution, meets the development of society and need that people's living standard improves
Will.To realize above-mentioned function, above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
The utility model discloses a kind of reflective optical fiber sensor device for being used to measure solution concentration, including light source, Y
Type optical fiber, reflection-type optical fibre sensor, fiber spectrometer, sensor fastening device, reflection-type optical fibre sensor are fixed on sensing
In device fixing device, reflection-type optical fibre sensor one end is immersed in solution to be measured, and the other end is connected with y-type optical fiber one end, Y type light
The fine other end is divided into Liang Ge branches, is connected respectively with light source and fiber spectrometer.
Further, the reflection-type optical fibre sensor profile is a stainless steel cylinder, and its underpart is provided with opening, no
Steel cylindrical base of becoming rusty pastes one piece of completely reflecting mirror.
Further, the stainless steel cylinder opening is immersed in solution to be measured.
Further, the light source is the deuterium tungsten light source that wave-length coverage is 190~2000nm.
Further, the light source is the halogen tungsten lamp light source that wave-length coverage is 400~700nm.
Further, the sensor fastening device is by circular platform, vertical fixture, Horizontal clamp, vertical support bar, water
Flat support bar is formed, and circular platform is fixedly connected with vertical support bar, and vertical fixture is fixedly connected with vertical support bar, vertical folder
Vertically adjustable regulating device is provided with tool, vertical fixture is fixedly connected with horizontal support bar, and Horizontal clamp is consolidated with horizontal support bar
Fixed connection, Horizontal clamp are provided with horizontal adjustable device.
Operation principle and process of the present utility model.
Detected solution loads utensil, is placed on the circular platform of sensor fastening device, reflection-type optical fibre sensor one end
Immerse in solution to be measured, reflection-type optical fibre sensor is fixed on the Horizontal clamp of sensor fastening device, passes through Horizontal clamp
On level(l)ing device Horizontal clamp can be made to be moved on horizontal support bar, find the horizontal level of reflection-type optical fibre sensor accurately
And it is fixed, by the vertical adjusting means on vertical fixture vertical fixture can be made to be moved on vertical support bar, found accurately reflective
The vertical height position of fibre optical sensor and fixation.After reflection-type optical fibre sensor fixes, reflection-type optical fibre sensor bottom
Opening is full of solution to be measured；After opening light source, the light that light source is sent has a multi-branch transport of branch one end by y-type optical fiber
To y-type optical fiber without branch one end, and incide the solution to be measured at reflection-type optical fibre sensor lower openings；Incident light reaches anti-
Reflected after penetrating formula fibre optical sensor bottom by the completely reflecting mirror of surface degree oxide-film, reflected light senses by reflection type optical fiber
Enter y-type optical fiber after solution to be measured at device lower openings without branch one end, and another point through y-type optical fiber one end containing branch
Branch enters fiber spectrometer, obtains the absorbance data of solution to be measured；Fiber spectrometer embedded software passes through dense with standard liquid
The standard curve contrast and fitting of absorbance are spent, calculates the concentration of solution to be measured.
And when the uniform and stable solution of a branch of directional light vertical incidence one, solution can have one to the light of particular range of wavelengths
Fixed absorption, in the case where light path is constant, the concentration of solution is directly proportional to absorbance, can be described as：
In formula：A is absorbance；I0For incident intensity；I is transmitted intensity；K is molar absorption coefficient, unit L
mol-1·cm-1；B is light path, unit cm；C be extinction material concentration, unit molL-1。
When the concentration of test substance is bigger, light path is thicker, then absorption of the solution to light is more, the light of transmission is weaker.Prepare
The standard liquid of material various concentrations of the same race, the absorbance of each standard liquid is determined, the absorbance data to get standard samples, is done
Go out concentration of standard solution and the standard curve of absorbance.Under the same conditions, the suction that the unknown moment contains the substance solution is determined
Luminosity, so that it may which normal concentration is quickly drawn by standard curve.
A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, combines optics, light
Sensing technology and photoelectric detecting technology are learned, for detecting unknown solution concentration.Reflection-type optical fibre sensor measurement solution concentration can
Directly reflection-type optical fibre sensor is goed deep into unknown solution to be measured being detected, it is ensured that detected solution non-secondary pollution, meanwhile,
The life safety of operating personnel can be ensured in the case where whether unknown solution has harm.Light source uses deuterium tungsten light source energy
Produce 190~2000nm continuous spectrums or 400~700nm continuous spectrums can be produced using halogen tungsten lamp light source, can correspond to most
The spectrum of number solute.
A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, has miniaturization, intelligence
Energyization, family oriented, easy to operate, safe, testing result is directly perceived, reproducible, and cost is cheap, non-secondary pollution etc.
Advantage, meet the development of society and the needs of people's living standard raising.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of reflective optical fiber sensor device connection signal for being used to measure solution concentration described in the utility model
Figure.
Fig. 2 is reflection-type optical fibre sensor in a kind of reflective optical fiber sensor device for measuring solution concentration
Diagrammatic cross-section.
Fig. 3 is reflection-type optical fibre sensor in a kind of reflective optical fiber sensor device for measuring solution concentration
In optical propagation direction schematic diagram.
Fig. 4 is that sensor fastening device shows in a kind of reflective optical fiber sensor device for measuring solution concentration
It is intended to.
Fig. 5 is absorption spectrum schematic diagram.
Fig. 6 is data processing schematic diagram.
In figure：1st, light source；2nd, y-type optical fiber；3rd, reflection-type optical fibre sensor；4th, fiber spectrometer；5th, sensor is fixed
Device.6th, circular platform；7th, vertical fixture；8th, Horizontal clamp；9th, vertical support bar；10th, horizontal support bar；11st, completely reflecting mirror；
12nd, it is open；13rd, solution to be measured.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
As shown in figure 1, be used to measure the reflective optical fiber sensor device of solution concentration the utility model discloses a kind of,
Including light source 1, y-type optical fiber 2, reflection-type optical fibre sensor 3, fiber spectrometer 4, sensor fastening device 5, reflection type optical fiber passes
Sensor 3 is fixed on sensor fastening device 5, and the one end of reflection-type optical fibre sensor 3 is immersed in solution 13 to be measured, the other end and Y
The one end of type optical fiber 2 connects, and the other end of y-type optical fiber 2 is divided into Liang Ge branches, is connected respectively with light source 1 and fiber spectrometer 4.
As shown in Fig. 2 the profile of reflection-type optical fibre sensor 3 is a stainless steel cylinder, its underpart is provided with opening
12, stainless steel cylindrical base pastes one piece of completely reflecting mirror 11.
The stainless steel cylinder opening 12 is immersed in solution 13 to be measured.
The light source 1 is the deuterium tungsten light source that wave-length coverage is 190~2000nm.
The light source 1 is the halogen tungsten lamp light source that wave-length coverage is 400~700nm.
As shown in figure 4, the sensor fastening device 5 is by circular platform 6, vertical fixture 7, Horizontal clamp 8, vertical support
Bar 9, horizontal support bar 10 are formed, and circular platform 6 is fixedly connected with vertical support bar 9, and vertical fixture 7 is solid with vertical support bar 9
It is fixed to connect, vertically adjustable regulating device is provided with vertical fixture 7, vertical fixture 7 is fixedly connected with horizontal support bar 10, level folder
Tool 8 is fixedly connected with horizontal support bar 10, and Horizontal clamp 8 is provided with horizontal adjustable device.
Operation principle and process of the present utility model.
As shown in Figure 2, Figure 3, Figure 4, detected solution loads utensil, is placed on the circular platform 6 of sensor fastening device 5,
The one end of reflection-type optical fibre sensor 3 is immersed in solution 13 to be measured, and reflection-type optical fibre sensor 3 is fixed on sensor fastening device
On Horizontal clamp, by the level(l)ing device on Horizontal clamp 8 Horizontal clamp 8 can be made to be moved on horizontal support bar 10, looked for
The horizontal level of quasi-reflection formula fibre optical sensor 3 and fixation, vertical fixture can be made by the vertical adjusting means on vertical fixture 7
7 move on vertical support bar 9, find vertical height position and the fixation of reflection-type optical fibre sensor 3 accurately.Reflection type optical fiber senses
After device 3 fixes, solution 13 to be measured is full of at the lower openings 12 of reflection-type optical fibre sensor 3；After opening light source 1, light source 1 is sent
Light have the multi-branch transport of branch one end to y-type optical fiber 2 without branch one end by y-type optical fiber 2, and incide reflecting light
Solution to be measured 13 at the lower openings 12 of fiber sensor 3；By surface degree oxygen behind incident light arrival reflection-type optical fibre sensor 3 bottom
The completely reflecting mirror 11 for changing film reflects, and reflected light is by the solution to be measured 13 at the lower openings 12 of reflection-type optical fibre sensor 3
Enter y-type optical fiber 2 afterwards without branch one end, and another through the one end containing branch of y-type optical fiber 2 branches into fiber spectrometer 4, obtains
To the absorbance data of solution 13 to be measured；The embedded software of fiber spectrometer 4 is bent by the standard with concentration of standard solution absorbance
Line contrasts and fitting, calculates the concentration of solution 13 to be measured.
And when the uniform and stable solution of a branch of directional light vertical incidence one, solution can have one to the light of particular range of wavelengths
Fixed absorption, in the case where light path is constant, the concentration of solution is directly proportional to absorbance, can be described as：
In formula：A is absorbance；I0For incident intensity；I is transmitted intensity；K is molar absorption coefficient, unit L
mol-1·cm-1；B is light path, unit cm；C be extinction material concentration, unit molL-1。
When the concentration of test substance is bigger, light path is thicker, then absorption of the solution to light is more, the light of transmission is weaker.Prepare
The standard liquid of material various concentrations of the same race, the absorbance of each standard liquid is determined, the absorbance data to get standard samples, is done
Go out concentration of standard solution and the standard curve of absorbance.Under the same conditions, the suction that the unknown moment contains the substance solution is determined
Luminosity, so that it may which normal concentration is quickly drawn by standard curve.
Embodiment 1：
The first step：The preparation of standardized potassium permanganate solution.
1st, 1.58g potassium permanganate solids are weighed, are placed in beaker, after adding distilled water stirring and dissolving, with 1000ml capacity
Bottle is settled to 1000ml graduation marks, is well mixed, it is 0.01molL to make concentration-1Liquor potassic permanganate.
2nd, the 100ml volumetric flasks of five cleanings, drying are taken, pipetted respectively with pipette above-mentioned solution 1.0,3.0,5.0,
7.0 (unknown), 9.0ml, it is respectively put into five volumetric flasks, is diluted with water to 100ml graduation marks, fully shakes up, obtain Gao Meng
Sour potassium solution concentration is respectively 1 × 10-4mol·L-1、3×10-4mol·L-1、5×10-4mol·L-1、7×10-4mol·L-1
(unknown concentration solution), 9 × 10-4mol·L-1, number-mark is carried out on volumetric flask.
Second step：According to Fig. 1, detection device is connected, distilled water is put into beaker.
3rd step：Open light source 1 to switch, open the test software of fiber spectrometer 4, measure the curve of spectrum of distilled water first
And preserve, the reference curve using this curve of spectrum as light source.
4th step：Solution is poured into beaker respectively successively, " absorbance " button of the software of fiber spectrometer 4 is clicked on, obtains
Abosrption spectrogram shown in Fig. 5, the absorbance for obtaining every kind of strength solution are as shown in table 1.
The absorbance of table 1 and corresponding concentration tables of data
5th step：Into data processing figure, as shown in fig. 6, carrying out data plan to obtained every kind of strength solution absorbance
Close, it is selection " straight line " in recurrence mode to carry out fitting a straight line, and the concentration for obtaining unknown liquor potassic permanganate is 7.62 × 10- 4mol·L-1, errors 8.9%, other fitting algorithms are selected in recurrence mode, can further improve measuring accuracy.
A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, by measuring configuration mark
5 kinds of liquor potassic permanganates of quasi- concentration, the absorbance data of the 5 kinds of solution measured with software, linear process is carried out to data and obtained
Concentration to unknown liquor potassic permanganate is 7.62 × 10-4molL-1, and error 8.9%, measurement result is more accurate.
A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, combines optics, light
Sensing technology and photoelectric detecting technology are learned, for detecting unknown solution concentration.Reflection-type optical fibre sensor measurement solution concentration can
Directly reflection-type optical fibre sensor is goed deep into unknown solution to be measured being detected, it is ensured that detected solution non-secondary pollution, meanwhile,
The life safety of operating personnel can be ensured in the case where whether unknown solution has harm.Light source uses deuterium tungsten light source energy
Produce 190~2000nm continuous spectrums or 400~700nm continuous spectrums can be produced using halogen tungsten lamp light source, can correspond to most
The spectrum of number solute.
A kind of reflective optical fiber sensor device for being used to measure solution concentration of the present utility model, has miniaturization, intelligence
Energyization, family oriented, easy to operate, safe, testing result is directly perceived, reproducible, and cost is cheap, non-secondary pollution etc.
Advantage, meet the development of society and the needs of people's living standard raising.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of reflective optical fiber sensor device for being used to measure solution concentration, it is characterised in that including light source (1), Y type light
Fine (2), reflection-type optical fibre sensor (3), fiber spectrometer (4), sensor fastening device (5), reflection-type optical fibre sensor (3)
It is fixed on sensor fastening device (5), reflection-type optical fibre sensor (3) one end is immersed in solution (13) to be measured, the other end and Y
Type optical fiber (2) one end connects, and y-type optical fiber (2) other end is divided into Liang Ge branches, respectively with light source (1) and fiber spectrometer (4) even
Connect.
2. a kind of reflective optical fiber sensor device for being used to measure solution concentration according to claim 1, its feature exist
In reflection-type optical fibre sensor (3) profile is a stainless steel cylinder, and its underpart is provided with opening (12), stainless steel circle
Paste one piece of completely reflecting mirror (11) in column bottom.
3. a kind of reflective optical fiber sensor device for being used to measure solution concentration according to claim 2, its feature exist
In the stainless steel cylinder opening (12) is immersed in solution (13) to be measured.
4. a kind of reflective optical fiber sensor device for being used to measure solution concentration according to claim 1, its feature exist
In the light source (1) is the deuterium tungsten light source that wave-length coverage is 190~2000nm.
5. a kind of reflective optical fiber sensor device for being used to measure solution concentration according to claim 1, its feature exist
In the light source (1) is the halogen tungsten lamp light source that wave-length coverage is 400~700nm.
6. a kind of reflective optical fiber sensor device for being used to measure solution concentration according to claim 1, its feature exist
In, the sensor fastening device (5) by circular platform (6), vertical fixture (7), Horizontal clamp (8), vertical support bar (9),
Horizontal support bar (10) is formed, and circular platform (6) is fixedly connected with vertical support bar (9), vertical fixture (7) and vertical support bar
(9) it is fixedly connected, vertically adjustable regulating device is provided with vertical fixture (7), vertical fixture (7) is fixed with horizontal support bar (10)
Connection, Horizontal clamp (8) are fixedly connected with horizontal support bar (10), and Horizontal clamp (8) is provided with horizontal adjustable device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373306.0U CN206756690U (en) | 2017-04-11 | 2017-04-11 | A kind of reflective optical fiber sensor device for being used to measure solution concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373306.0U CN206756690U (en) | 2017-04-11 | 2017-04-11 | A kind of reflective optical fiber sensor device for being used to measure solution concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206756690U true CN206756690U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720373306.0U Expired - Fee Related CN206756690U (en) | 2017-04-11 | 2017-04-11 | A kind of reflective optical fiber sensor device for being used to measure solution concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206756690U (en) |
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2017
- 2017-04-11 CN CN201720373306.0U patent/CN206756690U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20190411 |
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| CF01 | Termination of patent right due to non-payment of annual fee |