CN208297409U - A kind of glass batch evenness tester - Google Patents
A kind of glass batch evenness tester Download PDFInfo
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- CN208297409U CN208297409U CN201821059752.5U CN201821059752U CN208297409U CN 208297409 U CN208297409 U CN 208297409U CN 201821059752 U CN201821059752 U CN 201821059752U CN 208297409 U CN208297409 U CN 208297409U
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Abstract
The utility model embodiment is related to a kind of glass batch evenness tester, comprising: electric waveguide measuring circuit, for being measured to conductance;Temperature-compensation circuit is connect with electric waveguide measuring circuit, for measuring and compensating to temperature;Signal-data processing module, it is connect with electric waveguide measuring circuit and temperature-compensation circuit, it include: pre-amplification circuit, the temperature that the conductance and temperature-compensation circuit that electric waveguide measuring circuit measures measure, after the preposition amplification of pre-amplification circuit, switch to 0~10V voltage, send by analog switch to A/D converter;A/D converter is sent after 0~10V voltage is converted to digital quantity to single-chip microcontroller;Single-chip microcontroller is connect with A/D converter, for carrying out data processing.A kind of glass batch evenness tester provided by the embodiment of the utility model can quickly and accurately measure the conductivity of glass batch solution and carry out temperature self-compensation, and realize data processing function.
Description
Technical field
The utility model relates to technology of instrument and meter field more particularly to a kind of glass batch evenness testers.
Background technique
The preparation of batch is the important procedure in process of glass, and the quality of batch directly influences the matter of glass
Amount and yield.The uniformity of detection batch mainly uses following two method at present.
One, acid-base titration
This method main points are that indicator is added and is titrated with hydrochloric acid standard solution after sample is dissolved with water.If limestone content
It is higher, it must titrate after filtering, because the acid-soluble materials such as lime stone can participate in reaction after sodium carbonate is reacted with hydrochloric acid, cause
Terminal is not easy to observe, and generates human error.Can be seen that determination of acid-basetitration batch alkalinity, can be obtained the uniformity and
Two data of alkalinity.But this method, it is complicated for operation, analysis speed it is slow, terminal is not easy to observe.
Two, conductance method
This method is carried out by instrument to the conductivity that water-soluble substances in batch generate after dissolving sample with water
Measurement obtains uniformity data by calculating.Though this form measurement is fast and convenient, the quantitative knot of alkalinity cannot be obtained
Fruit may make underproof batch enter melting furnaces, cause economic loss.Another kind is first to make sodium carbonate liquor in difference
At a temperature of conductivity and the standard curve or table of its concentration gone out after measuring conductivity value by computation of table lookup
Alkalinity.Since electrical conductivity of solution is influenced by concentration, temperature and other interference components, in continuous mode, thermometric, school are needed
Just, it tables look-up and calculates, formality is cumbersome, not only increases analysis time, but also affect measurement accuracy.
Based on this, designer's discovery of the utility model, what both mensuration modes used is all common conductivity meter,
There is no temperature self-compensation function, without data processing function yet.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
In view of this, the technical problems to be solved in the utility model is, a kind of glass batch uniformity survey how is provided
The conductivity of glass batch solution can quickly and accurately be measured and carry out temperature self-compensation by determining instrument, and be realized at data
Manage function.
In order to solve the above technical problems, the utility model embodiment provides a kind of glass batch evenness tester, packet
It includes: electric waveguide measuring circuit, for being measured to conductance;Temperature-compensation circuit is connect with electric waveguide measuring circuit, for temperature
It measures and compensates;Signal-data processing module, connect with electric waveguide measuring circuit and temperature-compensation circuit respectively, the signal
Data processing module includes: pre-amplification circuit, and the conductance and the temperature-compensation circuit that the electric waveguide measuring circuit measures are surveyed
The temperature obtained switchs to 0~10V voltage after the preposition amplification of the pre-amplification circuit, send by analog switch to A/D and converts
Device;The A/D converter is sent after 0~10V voltage is converted to digital quantity to single-chip microcontroller;The single-chip microcontroller, with
The A/D converter connection, for carrying out data processing, the data processing includes data storage, calculates, in display or printing
It is one or more.
In one possible implementation, the electric waveguide measuring circuit includes: square-wave generator B1 and conductance electrode B2
Connection, conductance electrode B2 are connect with amplifier A1, and resistance Rf is connected between the inverting input terminal and output end of amplifier A1, electricity
Resistance Rp is connected between the non-inverting input terminal and ground of amplifier A1, and resistance R1 is connected to the output end and amplifier A2 of amplifier A1
Inverting input terminal connection, diode D1 is connected between the inverting input terminal and output end of amplifier A2, diode D2 with put
The output end connection of big device A2, resistance R2 are connect with the output end of amplifier A2 inverting input terminal and diode D2 respectively, resistance
R3 and the normal phase input end of amplifier A2 and connect, resistance R4 and the output end of diode D2 and connect.
In one possible implementation, the temperature-compensation circuit includes: reference voltage source and resistance R5 series connection, electricity
Resistance R6 is connect with the inverting input terminal of reference voltage source and amplifier A3 respectively, and resistance Rt is connected to the anti-phase input of amplifier A3
End output end between, capacitor C1 is connected between the inverting input terminal and output end of amplifier A3, resistance R7 respectively with amplification
The output end of device A3 is connected with the input terminal of amplifier A4, and resistance R9 is connect with the output end on ground and amplifier A4 respectively, capacitor
C2 is connect with the inverting input terminal of amplifier A4 and output end respectively, and resistance R8 and the positive of reference voltage source and amplifier A4 are defeated
Enter end connection.
A kind of glass batch evenness tester provided by the embodiment of the utility model is used by electric waveguide measuring circuit
It is measured in conductance;Temperature-compensation circuit is connect with electric waveguide measuring circuit, for measuring and compensating to temperature;Letter
Number processing module, connect with electric waveguide measuring circuit and temperature-compensation circuit respectively, and the signal-data processing module includes:
Pre-amplification circuit, the temperature that the conductance and the temperature-compensation circuit that the electric waveguide measuring circuit measures measure, before described
After setting the preposition amplification of amplifying circuit, switch to 0~10V voltage, send by analog switch to A/D converter;The A/D converter,
After 0~10V voltage is converted to digital quantity, send to single-chip microcontroller;The single-chip microcontroller is connect with the A/D converter,
For carrying out data processing, the data processing includes data storage, calculates, is in display or printing one or more, can
It really rapidly measures the conductivity of glass batch solution and carries out temperature self-compensation, and realize data processing function.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the utility model will
It becomes apparent.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 shows a kind of structural schematic diagram of glass batch evenness tester provided by the embodiment of the utility model;
Fig. 2 shows the conductance measurement electricity in a kind of glass batch evenness tester provided by the embodiment of the utility model
The structural schematic diagram on road 10;
Fig. 3 shows the electricity of the temperature-compensating in a kind of glass batch evenness tester provided by the embodiment of the utility model
The structural schematic diagram on road 20.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term
" comprising " or its transformation such as "comprising" or " including " etc. will be understood to comprise stated element or component, and simultaneously
Other elements or other components are not excluded.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the utility model, given in specific embodiment below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model equally be can be implemented.In some realities
In example, method well known to those skilled in the art, means, element are not described in detail, in order to highlight the utility model
Purport.
Fig. 1 shows a kind of structural schematic diagram of glass batch evenness tester provided by the embodiment of the utility model,
As shown, a kind of glass batch evenness tester includes: electric waveguide measuring circuit 10, temperature-compensation circuit 20 and signal
Data processing module 30.
Electric waveguide measuring circuit 10, for being measured to conductance.Temperature-compensation circuit 20,20 conductance of temperature-compensation circuit are surveyed
It measures circuit 10 to connect, and for temperature to be measured and compensated.Signal-data processing module 30, respectively with electric waveguide measuring circuit
10 and temperature-compensation circuit 20 connect.Signal-data processing module 30 includes pre-amplification circuit 31, analog switch 32, and A/D turns
Parallel operation 33 and single-chip microcontroller 34.Pre-amplification circuit 31 is connect with analog switch 32, and analog switch 32 is connect with A/D converter 33,
A/D converter 33 and single-chip microcontroller 34 connect.Conductance and temperature signal switch to 0~10V after the preposition amplification of pre-amplification circuit 31
Voltage after multiway analog switch 32 send and is converted to digital quantity to A/D converter 33, then send to 8031 single-chip microcontrollers 34 and carries out data
The data processing works such as storage, calculating, display and printing.
A kind of glass batch evenness tester provided by the embodiment of the utility model can be measured quickly and accurately as a result,
The conductivity of glass batch solution and temperature self-compensation is carried out, and realizes data processing function.
A kind of glass batch evenness tester provided by the embodiment of the utility model based on the measurement of conductivity,
It is core component with 8031 single-chip microcontrollers 34, replaces traditional analog circuit using single-chip microcontroller, make analyzer that there is self diagnosis, temperature
Automatic compensation calculates the functions such as printing, and various parameters can be manually entered, such as year, month, day, specimen coding, quantity, weight, measurement
Shi Bubi is manually started, and when conductance electrode is inserted into solution, just automatic starting measurement, automatic to carry out conductance correction, automatic zero adjustment is real
When detect and show, save the conductivity of mixed solution, when electrode takes out, and be automatically stopped measurement, automatic printing items ginseng
Several and each secondary conductivity, then start new measurement.After all sample measurements, the synthesis result repeatedly measured is calculated.
Fig. 2 shows the conductance measurement electricity in a kind of glass batch evenness tester provided by the embodiment of the utility model
The structural schematic diagram on road 10.As shown in Fig. 2, square-wave generator B1 is connect with conductance electrode B2, conductance electrode B2 and amplifier A1
Connection, resistance Rf are connected between the inverting input terminal and output end of amplifier A1, and resistance Rp is connected to the same phase of amplifier A1
Between input terminal and ground, the output end that resistance R1 is connected to amplifier A1 is connect with the inverting input terminal of amplifier A2, diode
D1 is connected between the inverting input terminal and output end of amplifier A2, and diode D2 is connect with the output end of amplifier A2, resistance
R2 is connect with the output end of amplifier A2 inverting input terminal and diode D2 respectively, the normal phase input end of resistance R3 and amplifier A2
Connected with ground, resistance R4 and the output end of diode D2 and connect.
In one possible implementation, can so constitute A/D converter: diode D1 is connected to amplifier A2's
Between inverting input terminal and output end, diode D2 is connect with the output end of amplifier A2, and resistance R2 is anti-with amplifier A2 respectively
Phase input terminal is connected with the output end of diode D2, resistance R3 and the normal phase input end of amplifier A2 and connect, resistance R4 with
The output end of diode D2 and ground connection.
For the output voltage E of square-wave generator as signal source, the Sx for being connected to amplifier backward end is conductance electrode B2 in circuit
Electric conductivity value, the output voltage U=SxRfE of amplifier A1, is ac voltage signal.The output U of A1 needs ability after linear detection
It can switch to DC voltage, send to A/D converter and be acquired.Linear detection principle are as follows: in the positive half cycle of U, due to D1 conducting
D2 cut-off, U0=0, in negative half period U0=-R1 (R2) U-R1+R2 (R1) A0 (Uf) U of U.The positive pressure that Uf is D2 in formula
Drop, A0 is the open-loop gain of amplifier, therefore Section 2 can be ignored, so U0 " R1 (R2).
At a certain temperature, the conductivity of glass batch solution is directly proportional to water-soluble salt content, therefore, molten by measuring
The conductance and conductivity of liquid, the uniformity of mixture can be calculated with the mean square deviation of conductivity.The conductance of solution is equal to its resistance
G is conductance in G=1/R (1) formula reciprocal, and unit: Siemens is indicated with S;R is resistance, unit: Ω.In R=PL/A (2) formula
P is resistivity, unit: Ω cm;L the effective distance cm between electrode, A are electrode effective area cm2.G=can be obtained by (1), (2) formula
P (1) is conductivity in P (1) L/A (1) (3) formula, is indicated with K, unit S/cm.When selecting a certain electrode, L and A has been
It is fixed, therefore L/A is a constant, referred to as electrode constant, is indicated with Q.So:
G=K1/Q (4)
K=GQ (5)
Therefore after measurement conductance G, conductivity K can be calculated, the conventional unit of K is mS/cm or mS/cm.According to " glass batch
Expect building material industry standard ", the uniformity of mixture presses the mathematical statistics method of probability theory, and it is poor to calculate limited sample standard deviation, presses
Following formula calculates: wherein
Xi5=mi (Xi) 55 (7)
S is conductivity mean square deviation in formula;N is Specimen Number;Xi is the conductivity of any one sample;Xi5 changes for sample
Calculate the conductivity for being 5.000g, unit mS/cm;Mi is the quality of any one sample, unit: g;Xi5 is scaled for sample
The average value of conductivity after 5.000g.
The uniformity H=100%-Cv (10) of mixture
Fig. 3 shows the electricity of the temperature-compensating in a kind of glass batch evenness tester provided by the embodiment of the utility model
The structural schematic diagram on road 20.As shown in figure 3, reference voltage source can be AD580 Precision reference voltage source, AD580 Precision reference
Voltage source and resistance R5 series connection, resistance R6 are connect with the inverting input terminal of AD580 Precision reference voltage source and amplifier A3 respectively,
Resistance Rt is connected between the inverting input terminal and output end of amplifier A3, and capacitor C1 is connected to the inverting input terminal of amplifier A3
Between output end, resistance R7 is connect with the input terminal of the output end of amplifier A3 and amplifier A4 respectively, resistance R9 respectively with
Ground is connected with the output end of amplifier A4, and capacitor C2 is connect with the inverting input terminal of amplifier A4 and output end respectively, resistance R8
It is connect with the normal phase input end of AD580 Precision reference voltage source and amplifier A4.AD580 Precision reference voltage source and resistance R5 string
Connection, the electric current of generation change into voltage through thermistor R5.The voltage of output and constant bias voltage 2.5V make it is passive be added,
Amplifying again by amplifying circuit later.Only surplus output voltage is directly proportional to temperature within the scope of 0 DEG C~50 DEG C (5 DEG C/V),
It is achieved in the measurement and compensation of temperature.Since thermistor stability is good, high sensitivity, thermal response are fast, so this instrument is still
Using thermistor measuring temperature, collecting temperature value, is compensated later, and the electric conductivity value measured under arbitrary temp is converted into base
Value at quasi- temperature (25 DEG C).By method condition experiment, show that the corresponding relationship of the conductivity of temperature and solution is Xt=Xt0
[1+b (t-t0)], takes t0=25 DEG C, then can calculate, and when detected solution temperature departure fiducial temperature, is scaled fiducial temperature
Under value: X25=Xt/ [1+b (t-t0)] (11)
A kind of glass batch evenness tester provided by the embodiment of the utility model can be measured quickly and accurately as a result,
The conductivity of glass batch solution and temperature self-compensation is carried out, and realizes data processing function.
A kind of glass batch evenness tester provided by the embodiment of the utility model based on the measurement of conductivity,
It is core component with 8031 single-chip microcontrollers 34, replaces traditional analog circuit using single-chip microcontroller, make analyzer that there is self diagnosis, temperature
Automatic compensation calculates the functions such as printing, and various parameters can be manually entered, such as year, month, day, specimen coding, quantity, weight, measurement
Shi Bubi is manually started, and when conductance electrode is inserted into solution, just automatic starting measurement, automatic to carry out conductance correction, automatic zero adjustment is real
When detect and show, save the conductivity of mixed solution, when electrode takes out, and be automatically stopped measurement, automatic printing items ginseng
Several and each secondary conductivity, then start new measurement.After all sample measurements, the synthesis result repeatedly measured is calculated.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations;
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement;And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (3)
1. a kind of glass batch evenness tester characterized by comprising
Electric waveguide measuring circuit, for being measured to conductance;
Temperature-compensation circuit is connect with electric waveguide measuring circuit, for measuring and compensating to temperature;
Signal-data processing module, connect with electric waveguide measuring circuit and temperature-compensation circuit respectively, the signal-data processing mould
Block includes:
Pre-amplification circuit, the temperature that the conductance and the temperature-compensation circuit that the electric waveguide measuring circuit measures measure, through institute
After stating the preposition amplification of pre-amplification circuit, switch to 0~10V voltage, send by analog switch to A/D converter;
The A/D converter is sent after 0~10V voltage is converted to digital quantity to single-chip microcontroller;
The single-chip microcontroller is connect with the A/D converter, for carrying out data processing, the data processing include data storage,
It calculates, is in display or printing one or more.
2. glass batch evenness tester according to claim 1, which is characterized in that the electric waveguide measuring circuit packet
Include: square-wave generator (B1) is connect with conductance electrode (B2), and conductance electrode (B2) is connect with amplifier (A1), resistance (Rf) connection
Between the inverting input terminal and output end of amplifier (A1), resistance (Rp) is connected to the non-inverting input terminal and ground of amplifier (A1)
Between, the output end that resistance (R1) is connected to amplifier (A1) is connect with the inverting input terminal of amplifier (A2), diode (D1)
It being connected between the inverting input terminal and output end of amplifier (A2), diode (D2) is connect with the output end of amplifier (A2),
Resistance (R2) is connect with the output end of amplifier (A2) inverting input terminal and diode (D2) respectively, resistance (R3) and amplifier
(A2) normal phase input end and ground connection, resistance (R4) and the output end of diode (D2) and connect.
3. glass batch evenness tester according to claim 1, which is characterized in that the temperature-compensation circuit packet
It includes: reference voltage source and resistance (R5) series connection, resistance (R6) inverting input terminal with reference voltage source and amplifier (A3) respectively
Connection, resistance (Rt) are connected between the inverting input terminal and output end of amplifier (A3), and capacitor (C1) is connected to amplifier
(A3) between inverting input terminal and output end, resistance (R7) is defeated with the output end of amplifier (A3) and amplifier (A4) respectively
Enter end connection, resistance (R9) connect with the output end on ground and amplifier (A4) respectively, capacitor (C2) respectively with amplifier (A4)
Inverting input terminal is connected with output end, and resistance (R8) is connect with the normal phase input end of reference voltage source and amplifier (A4).
Priority Applications (1)
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CN201821059752.5U CN208297409U (en) | 2018-07-05 | 2018-07-05 | A kind of glass batch evenness tester |
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CN201821059752.5U CN208297409U (en) | 2018-07-05 | 2018-07-05 | A kind of glass batch evenness tester |
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CN208297409U true CN208297409U (en) | 2018-12-28 |
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ID=64700959
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CN201821059752.5U Expired - Fee Related CN208297409U (en) | 2018-07-05 | 2018-07-05 | A kind of glass batch evenness tester |
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2018
- 2018-07-05 CN CN201821059752.5U patent/CN208297409U/en not_active Expired - Fee Related
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