CN206505018U - Chemical analysis color measurement instrument - Google Patents
Chemical analysis color measurement instrument Download PDFInfo
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- CN206505018U CN206505018U CN201720160799.XU CN201720160799U CN206505018U CN 206505018 U CN206505018 U CN 206505018U CN 201720160799 U CN201720160799 U CN 201720160799U CN 206505018 U CN206505018 U CN 206505018U
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Abstract
The utility model provides a kind of chemical analysis color measurement instrument, and the chemical analysis dynamic color analyzer includes：Light source, reaction tank, agitating device, titration outfit, pH meter, spectrometer, measure cavity temperature control device, measure intracavitary environmental protection device, auto injection measurement control, and data acquisition and processing (DAP) unit, the titration outfit injects testing liquid into the reaction tank, the agitating device is stirred to the solution body in reaction tank, the light source irradiates the reaction tank, light is set to be received through reaction tank by spectrometer, the spectrometer measures the absorbance of solution in the reaction tank, the data acquisition and processing (DAP) unit calculates space chromacity value by absorbance.The chemical analysis utilizes optics and CIE L with color measurement instrument*a*b*Colour space theory determines the color of chemical reaction solution, calculates reaction process, its measurement result digitlization, measurement accuracy is high, and testing procedure is simple, automation, the detection scale detection of mass can be achieved.
Description
Technical field
The utility model, which is related to one kind, can utilize optics and CIE L*a*b*Colour space theory determines the change of liquid color
Credit analysis color measurement instrument.
Background technology
At present, it is both domestic and external determine liquid color collocation method be generally artificial visual method, be exactly according to " visually impression →
The program of thinking judgement → language description " is described in words to the instant color change of configuration process, and the color for representing terminal is leaned on
Operator oneself understands.
Its terminal judge using phenolphthalein discoloration as mark.When being demarcated to reduce in error, national standard for standard titration solution
Control errors, which have, to be specified below：Provided in GB/T601-2002, when demarcating the concentration of standard titration solution, two people of palpus carry out real
Test, respectively do four parallel respectively, the relative value of everyone four parallel determinations extreme differences cannot be greater than the relative of repeated critical extreme difference
Value 0.15%；The relative value of two people totally eight parallel determinations extreme differences cannot be greater than the relative value of repeated critical extreme difference
0.18%, the average value for taking the parallel determinations of two people eight is measurement result.
" visual impression → thinking judgement → language description " method is very big by environment, people's sense organ and psychological impact, there is larger
Discreteness and random error, can not meet food quickly examine the need for." visual impression → thinking judgement → language is retouched
State " human eye as sensor, adopted and described in words by method to color change, and its major defect is：
1) human eye influences the judgement of titration end-point color, causes result deviation occur to the sensitivity of different colours；
2) some color distinctions are difficult to grasp by the physiological threshold difference of age and ethnic group, even trained ripe
Practice personnel also difficult；
3) it is different to the understanding of language between operator, cause the disunity of titration end-point color；
4) collimation error between operator is just entirely possible causes the deviation of experimental result, and endpoint error is relatively
Greatly；
5) different titration environment are big to the visual impact of operator；
6) titration process and endpoint information can only be described with language, without digital information, it is impossible to transmission of quantity value, and be reviewed
It is difficult；
7) when learning and teach, the aspectant mode of teaching of master and apprentice can only be taken to determine terminal colour；
8) labor intensity is big, be also easy to produce visual fatigue, influences the accurate of result；
9) big, end reaction affected by environment is blunt, it is difficult to improve accuracy of detection；
10) testing procedure is cumbersome, it is impossible to realize automation, the detection scale of mass.
During color a certain by eye-observation, different people has different descriptions to color, even same person,
Different visual effects can also be produced to same color under different illumination, therefore, making the description of color becomes materialization, essence
Standardization, digitlization, and influence of the subjective factor of light and people to colour measurement need not be considered, it is those skilled in the art's needs
The technical problem of solution.
To overcome above-mentioned technical problem, it is proposed that one kind utilizes optics and CIE L*a*b*Colour space theory determines solution
The method of color, its measurement result digitlization, measurement accuracy is high, and testing procedure is simple, and automation, the detection of mass can be achieved
Scale is detected.
It is above-mentioned based on colour space measure liquid color method to implement, it is desirable to provide a kind of liquid color determines device.
Utility model content
The purpose of this utility model is to provide a kind of liquid color and determines device, can utilize optics and CIE L*a*
b*Colour space theory implements the measure to liquid color.
Based on above-mentioned purpose, the utility model provides a kind of chemical analysis color measurement instrument, and it includes：Light source, reaction
Pond, agitating device, titration outfit, spectrometer and data acquisition and processing (DAP) unit, the titration outfit is into the reaction tank
Testing liquid is instilled, the agitating device is stirred to the solution in reaction tank, the light source irradiates the reaction tank, makes light
Line is received through reaction tank by spectrometer, and the spectrometer measures the absorbance of solution in the reaction tank, the data acquisition
Space chromacity value is calculated by absorbance with processing unit.
According to a preferred embodiment of the present utility model, the chemical analysis also includes pH meter with color measurement instrument,
The pH meter measures the pH value of the solution in the reaction tank.
According to a preferred embodiment of the present utility model, the reaction tank has relative and is arranged parallel to
Light transmission piece.
According to a preferred embodiment of the present utility model, the chemical analysis also includes collimating mirror with color measurement instrument
And optical cable, by optical cable, the light derived from light source is corrected to after parallel rays the collimating mirror, injects the light transmission piece of reaction tank, then
Light after being absorbed is corrected to after parallel rays spectrometer is imported by optical cable.
According to a preferred embodiment of the present utility model, the absorbance measuring time interval of the spectrometer exists
Set in the range of 0.1ms~10min.
According to a preferred embodiment of the present utility model, the volume number that correspondence is titrated at each time of measuring point, institute
The volume number of titration is stated by means of time of measuring and the colourity value parameter calculated at corresponding time of measuring point and is determined
PH value is corresponding.
According to a preferred embodiment of the present utility model, the titration outfit is at least one digital control syringe pump
Or simulation control syringe pump, the digital control syringe pump or simulated injection pump are arranged in parallel or series, each digital to control
Syringe pump processed or simulated injection pump are all individually controllable.
According to a preferred embodiment of the present utility model, the digital control syringe pump or simulation control syringe pump
Solution output end is immersed in the solution of reaction tank.
According to a preferred embodiment of the present utility model, it is characterised in that the digital control syringe pump or simulation
Control syringe pump solution output end have prevent the device of adverse current, prevent pump stop export when, the solution output end of pump and
Mutual infiltration between solution in reaction tank.
According to a preferred embodiment of the present utility model, the agitating device is mechanical agitation, Gas Stirring and magnetic
One kind in power agitating device.
According to a preferred embodiment of the present utility model, the chemical analysis also includes feedback system with color measurement instrument
System, the given space chromacity value of the reponse system calculating and its parameter and the space chromacity value and its difference of parameter measured, and/
Or calculate the difference of given pH value and the pH value measured, the rate of titration for controlling the titration outfit.
According to a preferred embodiment of the present utility model, the chemical analysis also includes calibration system with color measurement instrument
System, the calibration system is included in blank calibrated vessel and shift unit, the blank calibrated vessel containing specified absorbance
Liquid and with light transmission piece with light transmission piece same distance in reaction tank, the light source irradiates blank calibrated vessel, the number
Will be by CIE L according to collection and processing unit*a*b*L in colour space parameter*Value is corrected to 100, parameter a*Value is corrected to 0, parameter
b*Value correction is to 0, and the calibration blank vessel is moved away from measure light path by the shift unit after the completion of calibration, and will be described anti-
Answer container to move into and determine light path.
According to a preferred embodiment of the present utility model, the chemical analysis also includes temperature control with color measurement instrument and filled
Put, moisture measurement and control device, gasmetry and control device, lighting environment survey and control device, reagent supervising device, gas
Steep supervising device, solution overflow alarming device.
According to a preferred embodiment of the present utility model, the chemical analysis also includes a shell with color measurement instrument
Body, the housing at least accommodates the reaction tank wherein.
The chemical analysis that the utility model is provided is applied to utilize optics and CIE L with color measurement instrument*a*b*The colour space is managed
It is measured by solution colour, its measurement result is digitized, measurement accuracy is high, testing procedure is simple, automation can be achieved, criticizes
The detection scale detection of quantization.
Brief description of the drawings
Fig. 1 is the schematic diagram of the chemical analysis color measurement instrument according to an embodiment of the present utility model；
Fig. 2 is the workflow block diagram according to a chemical analysis color measurement instrument of the present utility model；
Fig. 3 is the operation principle frame of the correction system according to a chemical analysis color measurement instrument of the present utility model
Figure；
Fig. 4 is the reaction tank, light source and agitating device part according to chemical analysis color measurement instrument of the present utility model
Schematic diagram；
In figure：1 is light source, and 2 be reaction tank, and 3 be agitating device, and 4 be titration outfit, 5 is spectrometer, 6 is data acquisition
And processing unit, 7 be collimating mirror, and 8 be focus lamp, and 9 be sensor, and 11 be incident light source, and 12 regulation light sources, 2a is reaction tank,
3a is magnetic stirring apparatus.
Embodiment
Embodiment of the present utility model is described more fully below, the example of the embodiment is shown in the drawings, its
In from beginning to end same or similar label represent same or similar element or the element with same or like function.
It should be understood that embodiments below is only illustrative, the utility model is not construed as limiting.It is of the present utility model to protect
Shield scope is defined by the claims.It should also be understood that during the utility model is implemented, it is not necessary to including following embodiments
In all technical characteristics, these technical characteristics can have multiple combinations.
Fig. 1 shows the chemical analysis color measurement instrument according to an embodiment of the present utility model, and Fig. 2 is shown
According to the workflow block diagram of chemical analysis color measurement instrument of the present utility model.In conjunction with Fig. 1 and 2 to of the present utility model
Chemical analysis is described with color measurement instrument.The chemical analysis is included with color measurement instrument：Light source 1, reaction tank 2, stirring dress
Put 3, titration outfit 4, spectrometer 5 and data acquisition and processing unit 6.The titration outfit 4 is instilled into the reaction tank and treated
Liquid is surveyed, the agitating device 3 is stirred to the solution body in reaction tank, and the light source 1 irradiates the reaction tank 2, makes light
Line is received through reaction tank by spectrometer 5, and the spectrometer measures the absorbance of solution in the reaction tank, is passed to data and is adopted
Collection and processing unit 6, the data acquisition and processing (DAP) unit calculate space chromacity value by absorbance.
Preferably, the reaction tank has light transmission piece that is relative and being arranged parallel to, and light may pass through light transmission piece quilt
Spectrometer absorbs.
It is further preferable that the chemical analysis also includes collimating mirror and optical cable, light source, collimating mirror, light with color measurement instrument
Cable, light transmission piece and spectrometer constitute a light path system, and the light source can be sent comprising 280nm~1100nm spectral regions
Spectrum, by optical cable, the light derived from light source is corrected to after parallel rays the collimating mirror, injects the light transmission piece of reaction tank, then will
Light after being absorbed is corrected to after parallel rays imports spectrometer by optical cable, and the spectrometer is in continuous mode, selection
Property measurement 280nm~1100nm spectral regions in, the extinction of wavelength interval 0.1nm~100nm specified any one group of wavelength
Degree, for CIE L*a*b*The calculating of colour space parameter.The absorbance measuring time interval of the spectrometer is in 0.1ms~10min
In the range of set so that spectrometer can dynamically measure absorbance, and one titration of correspondence at each time of measuring point
Volume number, i.e., the volume number of the corresponding titration of each absorbance, further, every group of CIE L*a*b*The colour space is joined
Number, pH value all correspond to the volume number of a titration.
In Fig. 1, chemical analysis also includes collimating mirror 7, focus lamp 8 and sensor 9 with color measurement instrument.Wherein, collimate
Mirror is used in beam delivery system, to maintain the collimation of the light beam between laserresonator and focusing optic.Focus on
Mirror can improve the ability that edge light beam incides detector, in identical primary optical system, and additional field lens will be reduced and detected
The area of device, if using same detector area, can expand visual field, increases incident flux, additionally it is possible to make sensing
Inhomogeneous illumination on device photosurface is homogenized.
Light source 1 can be the light sources such as halogen tungsten lamp light source, LED or other visible light sources, its wave-length coverage be 280nm~
1100nm.Light source can inject reaction tank by collimating mirror, light path can also be transferred into reaction tank by optical cable.The kind of optical cable
Class is various, can be divided into single mode fiber cable, multimode optical cable, single fiber cable, twin fiber cable, metal free optical fiber cable, ordinary optical cable, comprehensive light
Cable etc..
Preferably, chemical analysis color measurement instrument also includes pH meter, and the pH meter is measured in the reaction tank
The pH value of solution.The pH value measured is sent to data acquisition and procession unit by the pH, for given drop
The pH value for determining terminal is compared, so that it is determined that titration end-point.In addition, measuring pH value by pH meter can be logged for
Relation between description measurement color and acid-base value.
For a kind of given color, it is known its in CIE L*a*b*In the case of space chromacity value in system, operation
Personnel can be titrated according to the given space chromacity value, the solution colour in reaction tank is measured, when data are adopted
When the space chromacity value that collection and processing unit are calculated reaches given space chromacity value, terminate titration, you can obtain desired face
Color.In addition, chemical analysis of the present utility model can also be remembered with color measurement instrument to the space chromacity value measured each time
Record, is demarcated to each color.
Alternatively, the titration outfit 4 can be hand titration outfit, can also be self-action titration outfit, preferably
Ground, the titration outfit 4 is digital control or simulation control syringe pump.Digital control or simulation control syringe pump number can be with
It is one or more, may be arranged to serial or parallel connection and use, in addition, when multiple syringe pumps are simultaneously in use, each injection
Pump adds the speed of solution and time and can controlled respectively.
The data acquisition and processing (DAP) unit is according to obtained space chromacity value and/or the pH value measured is calculated, it is determined that drop
Terminal is determined, so as to control digital control/simulation control syringe pump to stop titration.
Preferably, the solution output end of the digital control syringe pump or simulation control syringe pump is immersed in the molten of reaction tank
In liquid.Because when titration volumes are small, reagent is difficult the output end drop from syringe pump due to surface tension of liquid
Fall, therefore it is favourable that solution output end, which is immersed in the solution of reaction tank,.
It is further preferable that the solution output end of the digital control syringe pump or simulation control syringe pump, which has, prevents adverse current
Device, prevent pump stop export when, prevent the solution output end of syringe pump from continuing to penetrate into reaction tank, be also prevented from simultaneously
Solution in reaction tank is penetrated into syringe pump.
In the present embodiment, light source uses LED/light source, and its wave-length coverage is 280nm~1100nm, from syringe pump
SP1 is used to carry out titration operation, and SP1 is a compact conformation, and the product transmitted for accurate fluid passes through computer or micro- place
Reason device is controlled it, and is automatically performed liquid relief, dilution and distribution function, there is higher precision, relevant configured parameter is as follows：It is full
Stroke：60mm (6000 step)；Control resolution：0.01mm (1 step)；Stroke Control precision：≤5‰.
Spectrometer selects the hera01 model micro spectrometers of admesy companies, the spectrum for measuring solution.It has
Following functions feature：Small volume, is easy to neatly build spectroscopic system；With modularization and the characteristics of high speed acquisition；With reference to light
Source, optical fiber, measurement annex, can mix into various optical measuring systems；With internal structure it is compact, without moving parts, wavelength
Scope is wide, measuring speed is fast, price economy the advantages of；It is widely used in portable, intelligent Detection exploitation and industry exists
The fields such as line monitoring.Micro spectrometer has high-resolution, pinpoint accuracy, high speed acquisition, high real-time in gatherer process
Advantage.
It is further preferable that the chemical analysis also includes reponse system with color measurement instrument, Fig. 3 is shown according to this practicality
The operation principle block diagram of the reponse system of new chemical analysis color measurement instrument.The reponse system calculates given space
The difference of chromatic value and the space chromacity value measured, and/or the difference of given pH value and the pH value measured is calculated, so that according to deviation
The rate of titration of the value control titration outfit.Specifically, titration outfit can be set so as to speed change titration, when calculating is obtained
Space chromacity value and given space chromacity value between, and/or the deviation of the pH value that measures and given pH between is larger
When, titrated using high speed, when calculating between obtained space chromacity value and given space chromacity value, and/or the pH value measured
And when deviations of the given pH between is smaller, titrated using low speed.It should be noted that rate of titration is unfavorable for very much the mixed of solution soon
Close, the performance of too slow influence injection pump motor, technical staff can be set according to the performance and actual conditions of titration outfit.
In addition, the utility model chemical analysis color measurement instrument can also include calibration system, the calibration system by
Containing the liquid for specifying absorbance in blank calibrated vessel and shift unit composition, the blank calibrated vessel, and tool blank
The printing opacity light path of calibrated vessel is identical with the printing opacity light path of reaction tank, it is preferable that blank calibrated vessel is using identical with reaction tank
The parallel transmitted light piece of spacing, the blank calibrated vessel is irradiated with light source, and CIE L are calculated using spectrometer*a*b*The colour space is joined
Number, and by CIE L*a*b*L in colour space parameter*Value is corrected to 100, parameter a*Value is corrected to 0, parameter b*Value correction is used to 0
In the CIE L for comparing blank value before titration*a*b*Colour space parameter and the CIE L after titration*a*b*It is exhausted between colour space parameter
To difference.Blank calibrated vessel is removed using shift unit after calibration, and reaction tank is moved to located.
Due to also being required to the temperature of surrounding environment in titration, preferably in the range of 15 °~30 °, Tai Gao or too
Low all to influence the accuracy of measurement result, therefore, chemical analysis color measurement instrument of the present utility model can also include temperature
Device (not shown) is controlled, it includes temperature survey and temperature-controlling module, temperature survey can be carried out to the solution in reaction tank
And temperature control, keep the temperature at suitable titrimetry temperature.By the solution temperature in the reaction tank measured and setting
Preset value in program is compared, and stops titration process when beyond setting range, the solution in reaction tank is heated
Or cooling, it is adjusted in the range of reaction temperature of setting.
In addition, chemical analysis color measurement instrument of the present utility model can also include moisture measurement and control device, gas
Bulk measurement and control device, reagent supervising device, bubble supervising device, lighting environment survey and control device, solution overflow alarm
Device.
Moisture measurement and control device, for determining the humidity in reaction environment immediately, with the preset value in setting program
It is compared, beyond setting range alarm/stopping titration process.The moisture measurement and the control device in control device
It can increase/reduce the humidity in reaction chamber, be compared with the preset value in setting program, by humidity regulation to setting value model
In enclosing.The gasmetry is used to determine reaction environment composition of gases within and concentration immediately with the measurement apparatus in control device,
It is compared with the preset value in setting program, beyond setting range alarm/stopping titration process.Gasmetry and control
Control device in device is used to control the preset value in reaction chamber composition of gases within and concentration, with setting program to be compared immediately
Compared with gas componant and concentration in increase/reduction reaction chamber adjust gas componant and concentration into range of set value.
Reagent supervising device, the state for determining reaction reagent immediately, is compared with the preset value in setting program,
Beyond setting range alarm/stopping titration process.It is less than preset vol Times in reagent in the reagent supervising device
Police/stopping titration process.
Bubble supervising device, the state for determining bubble in reagent flow duct and reaction vessel immediately, with setting journey
Preset value in sequence is compared, beyond setting range alarm/stopping titration process.In the reagent supervising device
Reagent is less than preset vol alarm/stopping titration process.
Lighting environment survey is used to determine 280nm~1100nm light in reaction environment immediately with the measurement apparatus in control device
The luminous intensity of any wavelength, is compared with the preset value in setting program in spectral limit, beyond setting range alarm/stop
Only titration process.
The sensor of the solution overflow alarming device is used for the solution for determining measurement intracavitary bottom immediately, molten when experiencing
After liquid, it is compared with the preset value in setting program, beyond setting range alarm/stopping titration process.
Chemical analysis color measurement instrument of the present utility model can also include display module, for showing the pH measured
The curve of value, the space chromacity value calculated and deviation relative to the volume of volumetric soiutions.
Fig. 4 shows reaction tank, light source and the agitating device according to chemical analysis color measurement instrument of the present utility model
Partial schematic diagram.
Alternatively, the agitating device can be mechanical stirring device, gas stirring device or magnetic stirring apparatus.Machinery
Agitating device have one from top stretch to reaction tank solution in stirring rod, drive stirring rod to rotate by motor, make anti-
Solution is mixed by rotation mode in Ying Chi.
Gas stirring device has a gas passage extended to from top above the solution surface of reaction tank, to gas
Gas is passed through in passage, then gas blows to liquid level of solution, promotes solution rotating, mix solution rotating.
Magnetic stirring apparatus has one and is contained in magnetization stirring rod in reaction tank, can move freely, passes through reaction
The rotation of pond external magnetic field drives the rotation of stirring rod in solution, mixes solution.
In the chemical analysis color measurement instrument shown in Fig. 4, reaction tank 1a has relative and is arranged parallel to
Light transmission piece and the light shield layer positioned at light transmission piece periphery, agitating device are receiving in magnetic stirring apparatus 3a, and the reaction tank
There is a stirring rod (not shown).Magnetic stirring apparatus 3a drives stirring rod rotation, so as to reach the solution in agitating reaction pond 1a
Purpose.It is advantageous in that using magnetic stirring apparatus, stirring rod is rotated using magnetic force, is realized and stirred using cordless,
Make the arrangement between agitating device and reaction tank more simple.
Preferably, as shown in figure 4, light source 1 includes incident light source 11 and regulation light source 12.Light source 1 passes through optical fiber or anti-
Penetrate mirror and light is adjusted to incident light perpendicular to light transmission piece, transmit into reaction solution, then it is saturating by light transmission piece positioned opposite
Reaction tank is projected, the speculum and optical fiber for continuing through receiver are received, photoelectric detector on spectrometer is by the spoke of light
Electric power signal can be converted into by penetrating, by being converted to absorbance, be calculated measuring the corresponding absorbance of different wave length.
In addition, regulation light source can directly be received by optical fiber or speculum by spectrometer, for calibrating incident light source.
According to a preferred embodiment of the present utility model, chemical analysis color measurement instrument of the present utility model may be used also
With including a housing, the reaction tank is at least contained in wherein it is preferred to by the chemical analysis color by the housing
Instrument apparatus is determined to be totally contained therein.The housing can be transparent or nontransparent, and favourable reaction is provided for reaction tank
Condition, for example, being filled with inert gas, such as nitrogen into the housing, provides an oxygen-free environment, to subtract for the reaction tank
The influence that small external environment is determined to solution colour, can also avoid oxidation reaction.
According to a preferred embodiment of the present utility model, the light source can be transmitted to the reaction by optical cable
Pond, injects light, and pass through after the reaction through being accessed to the spectrum by optical cable perpendicular to the transmittance section of the reaction tank
The optical fiber interface of instrument.
Chemical analysis color measurement instrument of the present utility model can implement accurate chemistry titration based on colour measurement principle,
Using automatically controlling, intelligent testing technology, built the system of a set of automatic ration titration, realized digitlization, quantification, essence
Chemistry titration measurement and the control of standardization.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (14)
1. a kind of chemical analysis color measurement instrument, it is characterised in that the chemical analysis is included with color measurement instrument：Light source,
Reaction tank, agitating device, titration outfit, spectrometer and data acquisition and processing (DAP) unit, the titration outfit is to the reaction
Testing liquid is instilled in pond, the agitating device is stirred to the solution in reaction tank, the light source irradiates the reaction tank,
Light is set to be received through reaction tank by spectrometer, the spectrometer measures the absorbance of solution in the reaction tank, the data
Collection and processing unit calculate space chromacity value by absorbance.
2. chemical analysis color measurement instrument according to claim 1, it is characterised in that the chemical analysis is surveyed with color
Determining instrument also includes pH meter, and the pH meter measures the pH value of the solution in the reaction tank.
3. chemical analysis color measurement instrument according to claim 1, it is characterised in that the reaction tank has relative
And the light transmission piece being arranged parallel to.
4. chemical analysis color measurement instrument according to claim 3, it is characterised in that the chemical analysis is surveyed with color
Determining instrument also includes collimating mirror and optical cable, and by optical cable, the light derived from light source is corrected to after parallel rays the collimating mirror, injects
The light transmission piece of reaction tank, then the light after being absorbed is corrected to after parallel rays spectrometer is imported by optical cable.
5. chemical analysis color measurement instrument according to claim 4, it is characterised in that the absorbance of the spectrometer is surveyed
Amount time interval is set in the range of 0.1ms~10min.
6. chemical analysis color measurement instrument according to claim 4, it is characterised in that correspondence at each time of measuring point
The volume number of titration, the volume number of the titration is by means of time of measuring and the colourity calculated at corresponding time of measuring point
Value parameter is corresponding with the pH value determined.
7. chemical analysis color measurement instrument according to claim 1, it is characterised in that the titration outfit is at least one
Individual digital control syringe pump or simulation control syringe pump, the digital control syringe pump or simulated injection pump be arranged to it is in parallel or
Series connection, each digital control syringe pump or simulated injection pump are individually controllable.
8. chemical analysis color measurement instrument according to claim 7, it is characterised in that the digital control syringe pump or
The solution output end of simulation control syringe pump is immersed in the solution of reaction tank.
9. chemical analysis color measurement instrument according to claim 8, it is characterised in that the digital control syringe pump or
The solution output end of simulation control syringe pump, which has, prevents the device of adverse current, prevents when pump stops exporting, the solution output of pump
The mutual infiltration between solution in end and reaction tank.
10. chemical analysis color measurement instrument according to claim 1, it is characterised in that the agitating device is machinery
One kind in stirring, Gas Stirring and magnetic stirring apparatus.
11. chemical analysis color measurement instrument according to claim 1, it is characterised in that the chemical analysis color
Analyzer also includes reponse system.
12. chemical analysis color measurement instrument according to claim 3, it is characterised in that the chemical analysis color
Analyzer also includes calibration system, and the calibration system includes blank calibrated vessel and shift unit, the blank calibrated vessel
In containing the liquid for specifying absorbance and with light transmission piece with light transmission piece same distance in reaction tank, the light source irradiation is empty
White calibrated vessel.
13. chemical analysis color measurement instrument according to claim 1, it is characterised in that the chemical analysis color
Analyzer also includes temperature control device, moisture measurement and control device, gasmetry and control device, lighting environment survey and filled with control
Put, reagent supervising device, bubble supervising device, solution overflow alarming device.
14. chemical analysis color measurement instrument according to claim 1, it is characterised in that the chemical analysis color
Analyzer also includes a housing, and the housing at least accommodates the reaction tank wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160799.XU CN206505018U (en) | 2017-02-22 | 2017-02-22 | Chemical analysis color measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160799.XU CN206505018U (en) | 2017-02-22 | 2017-02-22 | Chemical analysis color measurement instrument |
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| Publication Number | Publication Date |
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| CN206505018U true CN206505018U (en) | 2017-09-19 |
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ID=59840285
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| CN201720160799.XU Active CN206505018U (en) | 2017-02-22 | 2017-02-22 | Chemical analysis color measurement instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645134A (en) * | 2017-02-22 | 2017-05-10 | 王飞 | Color measurement instrument for chemical analysis |
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2017
- 2017-02-22 CN CN201720160799.XU patent/CN206505018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645134A (en) * | 2017-02-22 | 2017-05-10 | 王飞 | Color measurement instrument for chemical analysis |
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