CN208206859U - electrodeless conductivity analyzer - Google Patents
electrodeless conductivity analyzer Download PDFInfo
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- CN208206859U CN208206859U CN201820729061.5U CN201820729061U CN208206859U CN 208206859 U CN208206859 U CN 208206859U CN 201820729061 U CN201820729061 U CN 201820729061U CN 208206859 U CN208206859 U CN 208206859U
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- signal processing
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- detector
- conductivity analyzer
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Abstract
The utility model discloses electrodeless conductivity analyzers, the electrodeless conductivity analyzer is dumbbell shaped, detector and signal processing module are respectively equipped with inside the both ends of the electrodeless conductivity analyzer of dumbbell shaped, electric wire is equipped in the hand handle of the electrodeless conductivity analyzer of dumbbell shaped, the electric wire will test device and be connected with signal processing module, the detector includes one group of toroidal transformer coil, and signal processing module includes exciting circuit, amplifying circuit, signal processing circuit and display output circuit.The primary coil of the toroidal transformer of detector is connected with the exciting circuit of signal processing module, and the secondary coil of the toroidal transformer of detector is connected with the amplifying circuit of signal processing module, and the output of amplifying circuit gives display output circuit through signal processing circuit.The utility model eliminates polarization, the accurate medium and solution for measuring class of pollution height and having deposition to be inclined to.
Description
Technical field
The utility model relates to a kind of electrodeless conductivity analyzers.
Background technique
The measurement of electrolytic conductivity parameter, is more important technological parameter, conductivity analyzer can be used for making wine,
The monitoring of dairy produce and beverage industry product, the control of CIP system, product/water and product/product mix object phase in pipe-line system
Separation, acid, the control of alkali concentration, the monitoring of bottle cleaning system etc..However the detection probe of conventional conductivity meter has electrode,
Polarization phenomena are easy to produce, to influence the precision of measurement.Thus, there is an urgent need to the conductivity analyzer of a electrodeless probe,
It can be improved measurement accuracy.
Summary of the invention
The utility model is directed to existing deficiency, provides a kind of electrodeless conductivity analyzer, can be improved measurement accuracy.For reality
Existing above-mentioned purpose, the utility model is using technical solution:
The electrodeless conductivity analyzer is dumbbell shaped, difference inside the both ends of the electrodeless conductivity analyzer of dumbbell shaped
Equipped with detector and signal processing module, electric wire is equipped in the hand handle of the electrodeless conductivity analyzer of dumbbell shaped, the electric wire will be examined
It surveys device to be connected with signal processing module, the detector includes one group of toroidal transformer coil, and signal processing module includes excitation
Circuit, amplifying circuit, signal processing circuit and display output circuit,
The primary coil of the toroidal transformer of detector is connected with the exciting circuit of signal processing module, the annular of detector
The secondary coil of transformer is connected with the amplifying circuit of signal processing module, and the output of amplifying circuit is sent through signal processing circuit
To display output circuit.
The amplifying circuit of the signal processing module further includes temperature-compensation circuit.
The utility model has the beneficial effects that the utility model eliminates polarization, it is accurate measure class of pollution height and have it is heavy
The medium and solution of product tendency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit block diagram of the utility model；
Fig. 3 is the principles of the present invention figure.
Specific embodiment
The utility model is specifically introduced below in conjunction with drawings and examples as follows:
The electrodeless conductivity analyzer is dumbbell shaped, difference inside the both ends of the electrodeless conductivity analyzer of dumbbell shaped
Equipped with detector and signal processing module, electric wire is equipped in the hand handle of the electrodeless conductivity analyzer of dumbbell shaped, the electric wire will be examined
It surveys device to be connected with signal processing module, the detector includes one group of toroidal transformer coil, and signal processing module includes excitation
Circuit, amplifying circuit, signal processing circuit and display output circuit,
The primary coil of the toroidal transformer of detector is connected with the exciting circuit of signal processing module, the annular of detector
The secondary coil of transformer is connected with the amplifying circuit of signal processing module, and the output of amplifying circuit is sent through signal processing circuit
To display output circuit.
The amplifying circuit of the signal processing module further includes temperature-compensation circuit.
The basic principle of the utility model is faraday electromagnetic induction principle, as shown in Fig. 3, when magnet exciting coil T1 around
When group one alternating voltage U1 of input, induced current Ie can be generated by (being made of measured medium) in subloop.Due to the effect of Ie,
T2 winding just has induced electromotive force U2 generation.
It using the sensor of toroidal core coiling, is placed in electrolyte solution, the solution for surrounding sensor passes through center
Hole forms dielectric solution circuit, solution loop equivalent resistance Re=K/Xe, (K is sensor constants), solution loop induced current
The size of Ie is determined by solution equivalent resistance Re, that is, solution conductivity rate Xe.It can be obtained in this way in detection coil with conductance
Rate and the induced electromotive force U2 changed by temperature-compensating and are calculated and be can be measured instantaneous conductivity value.
Its circuit analysis is as shown in Fig. 2, will test device end and is put into electrolyte, that is, the primary coil and secondary of detector
Coil immerses in electrolyte, and the excitation voltage U1 that exciting circuit generates is acted on magnetizing coil T1, when detected solution electricity
One timing of conductance, will generate corresponding induced current Ie, under this function of current, induced potential U2 is produced on detection coil T2
It send to amplification switching stage, carries out voltage amplification, and be converted to 4~20mA conduction current signal I1.Meanwhile temperature detecting resistance Rt will be by
The temperature signal for surveying solution also send the temperature current signal I2 for being allowed to export 4~20mA to amplifier switching stage.Detector output
Electric current I1 and I2 send simultaneously to signal processor, temperature-compensating processing and linearization process are carried out by the software of computer,
Export electric current I0 corresponding with detected solution.
The utility model is disclosed with preferred embodiment above, so it is all to take not to limit the utility model
The form of equivalent substitution or equivalent transformation technical solution obtained, all falls within the protection scope of the utility model.
Claims (2)
1. electrodeless conductivity analyzer, which is characterized in that the electrodeless conductivity analyzer is dumbbell shaped, and the dumbbell shaped is electrodeless
Detector and signal processing module, the hand of the electrodeless conductivity analyzer of dumbbell shaped are respectively equipped with inside the both ends of conductivity analyzer
Electric wire is equipped in, the electric wire will test device and be connected with signal processing module,
The detector includes one group of toroidal transformer coil；
Signal processing module includes exciting circuit, amplifying circuit, signal processing circuit and display output circuit,
The primary coil of the toroidal transformer of detector is connected with the exciting circuit of signal processing module,
The secondary coil of the toroidal transformer of detector is connected with the amplifying circuit of signal processing module, the output warp of amplifying circuit
Signal processing circuit gives display output circuit.
2. electrodeless conductivity analyzer according to claim 1, which is characterized in that the amplifying circuit of the signal processing module
It further include temperature-compensation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729061.5U CN208206859U (en) | 2018-05-16 | 2018-05-16 | electrodeless conductivity analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820729061.5U CN208206859U (en) | 2018-05-16 | 2018-05-16 | electrodeless conductivity analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208206859U true CN208206859U (en) | 2018-12-07 |
Family
ID=64517194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820729061.5U Active CN208206859U (en) | 2018-05-16 | 2018-05-16 | electrodeless conductivity analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208206859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535332A (en) * | 2018-05-16 | 2018-09-14 | 南京科技职业学院 | electrodeless conductivity analyzer |
-
2018
- 2018-05-16 CN CN201820729061.5U patent/CN208206859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535332A (en) * | 2018-05-16 | 2018-09-14 | 南京科技职业学院 | electrodeless conductivity analyzer |
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