CN201314934Y - Chinese on-line conductivity meter - Google Patents
Chinese on-line conductivity meter Download PDFInfo
- Publication number
- CN201314934Y CN201314934Y CNU2008203035040U CN200820303504U CN201314934Y CN 201314934 Y CN201314934 Y CN 201314934Y CN U2008203035040 U CNU2008203035040 U CN U2008203035040U CN 200820303504 U CN200820303504 U CN 200820303504U CN 201314934 Y CN201314934 Y CN 201314934Y
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- chinese
- conductivity meter
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Abstract
The utility model discloses a Chinese on-line conductivity meter, of which the structure comprises a microprocessor (1), and is characterized in that the microprocessor (1) is connected with a liquid crystal screen (2); the microprocessor (1) is connected with an AD sampling module (3) used for acquiring data; the AD sampling module (3) is respectively connected with a temperature signal processing module (4) and a conductance signal processing module (5); the microprocessor (1) is also connected with a photoelectric isolation module (6) used for output; the photoelectric isolation module (6) is connected with a DAC output module (7) and a high-low warning module (8); and the DAC output module (7) is connected with a voltage-to-current converting module (9). The Chinese on-line conductivity meter adopts the patching technology, has high integration degree, integrates all components and parts into one breadboard, has small volume, and is very convenient to install and use. Compared with the prior art, the utility model has the advantages of high integration degree, small volume, convenient use and the like.
Description
Technical field
The utility model relates to the online conductivity meter of a kind of Chinese, belongs to online conductivity meter technical field.
Background technology
Present online conductivity meter on the market, intelligent degree is not high, only statistics have shown, have also that volume ratio is big, the many problems of number of wiring board, as: polylith wiring boards such as display board, mainboard, power panel, signal plate, and be to adopt many resolution elements, integrated degree is low, and result of use is not ideal enough.
Summary of the invention
The purpose of this utility model is: provide a kind of integrated degree height, Chinese online conductivity meter that volume is little, easy to operate, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: structure comprises microprocessor, and microprocessor connects LCDs, and microprocessor connects the AD sampling module that is used for image data, and the AD sampling module connects processes temperature signal module and conductance signal processing module respectively; Microprocessor also connects the photoelectric isolation module that is used to export, and photoelectric isolation module connects DAC output module and height alarm module, and the DAC output module connects the voltage transitions current module.
Above-mentioned Chinese online conductivity meter, microprocessor is connected with the clock module of demonstration time.
Above-mentioned Chinese online conductivity meter, the processes temperature signal module connects temperature sensor, and the conductance signal processing module connects conductance electrode.
The utility model adopts mount technology, and integrated degree height, all components and parts are integrated on the wiring board of 130mm (wide) * 120mm (height), have not had complicated functional switch and adjusting knob, and volume is little, and installation and use are all very convenient.And adopt Chinese to show that it is explicit to operate on the LCDs.Compare with prior art, the utlity model has advantages such as integrated degree height, volume be little, easy to use.
Description of drawings
Accompanying drawing 1 is circuit theory diagrams of the present utility model;
Embodiment
Embodiment of the present utility model: as shown in Figure 1, microprocessor 1 adopts existing uPSD3234A-40U6 chip, and microprocessor 1 is not only the function of a CPU, and it stores the space of data and program in addition.UPSD3234A has two Flash storeies, and wherein 128K master Flsah storer is used for the dress program; Secondly the inferior Flash of 32K is used to store data.Microprocessor 1 connects LCDs 2, and LCDs 2 adopts MGLS-19264, major function be show to conductivity value and temperature, and provide the operation interface of full Chinese, make things convenient for the user to operate.The MGLS-19264 that selects for use can provide the demonstration of figure, letter and Chinese character.Microprocessor 1 connects the AD sampling module 3 that is used for image data, and AD sampling module 3 is selected the AD1112IDGST of 16 of binary channels, and a passage is adopted temperature, and a passage is adopted conductivity.AD sampling module 3 connects processes temperature signal module 4 and conductance signal processing module 5 respectively; Processes temperature signal module 4 adopts the MC1403 of a SOP8 paster encapsulation to provide constant 2.5V voltage, adopts the principle of electric resistance partial pressure, draws temperature value for the sampling of AD sampling module 3 chips.Conductance signal processing module 5 adopts paster (two of TL062I, one of AD620) and paster CD4053 that SOP16 encapsulates of three SOP8 encapsulation, volume be traditional conductivity meter the signal processing part partial volume 1/10.Microprocessor 1 also connects the photoelectric isolation module 6 that is used to export, and photoelectric isolation module 6 connects DAC output module 7 and height alarm module 8, and DAC output module 7 connects voltage transitions current module 9.Photoelectric isolation module 6 effects are that output is with not common-battery source, the not interference each other of conductivity part.DAC output module 7 adopts the DAC7512 chip, and volume has only 1/20 of common DAC chip, and height alarm module 8 mainly provides the switching value signal.Voltage transitions current module 9 adopts the LM324 chip.DAC output module 7 is that 12 number is touched conversion chip, and digital signal is converted to the voltage of 1～5V, converts the electric current of 4～20mA again to by voltage transitions current module 9.
Microprocessor 1 is connected with the clock module 10 of demonstration time, and clock module 10 adopts DS12C887, and major function is to provide time reference for instrumentation function and the conductivity of storing automatically.
Processes temperature signal module 4 connects temperature sensor 11, and conductance signal processing module 5 connects conductance electrode 12.
The power module that is provided with on the wiring board 13 adopts HAT10-0512-NF and HDN3-5S24, the alternating current 220V power source conversion become direct current 5V and ± 12V, again the 5V of direct current is converted to 24V.
Claims (3)
- The online conductivity meter of [claim 1] a kind of Chinese, structure comprises microprocessor (1), it is characterized in that: microprocessor (1) connects LCDs (2), microprocessor (1) connects the AD sampling module (3) that is used for image data, and AD sampling module (3) connects processes temperature signal module (4) and conductance signal processing module (5) respectively; Microprocessor (1) also connects the photoelectric isolation module (6) that is used to export, and photoelectric isolation module (6) connects DAC output module (7) and height alarm module (8), and DAC output module (7) connects voltage transitions current module (9).
- The online conductivity meter of [claim 2] Chinese according to claim 1 is characterized in that: microprocessor (1) is connected with the clock module (10) of demonstration time.
- The online conductivity meter of [claim 3] Chinese according to claim 1 is characterized in that: processes temperature signal module (4) connects temperature sensor (11), and conductance signal processing module (5) connects conductance electrode (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203035040U CN201314934Y (en) | 2008-12-18 | 2008-12-18 | Chinese on-line conductivity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203035040U CN201314934Y (en) | 2008-12-18 | 2008-12-18 | Chinese on-line conductivity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314934Y true CN201314934Y (en) | 2009-09-23 |
Family
ID=41126733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203035040U Expired - Fee Related CN201314934Y (en) | 2008-12-18 | 2008-12-18 | Chinese on-line conductivity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314934Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279319A (en) * | 2011-06-24 | 2011-12-14 | 华南理工大学 | Self-compensating single-way precise conductivity detection alarm with symmetrical leads |
-
2008
- 2008-12-18 CN CNU2008203035040U patent/CN201314934Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279319A (en) * | 2011-06-24 | 2011-12-14 | 华南理工大学 | Self-compensating single-way precise conductivity detection alarm with symmetrical leads |
| CN102279319B (en) * | 2011-06-24 | 2013-11-13 | 华南理工大学 | Self-compensating single-way precise conductivity detection alarm with symmetrical leads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20131218 |