CN201637706U - Dual-channel online acid-base concentration meter - Google Patents
Dual-channel online acid-base concentration meter Download PDFInfo
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- CN201637706U CN201637706U CN2010201640712U CN201020164071U CN201637706U CN 201637706 U CN201637706 U CN 201637706U CN 2010201640712 U CN2010201640712 U CN 2010201640712U CN 201020164071 U CN201020164071 U CN 201020164071U CN 201637706 U CN201637706 U CN 201637706U
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Abstract
The utility model discloses a dual-channel online acid-base concentration meter which comprises a microprocessor (1), wherein the microprocessor (1) is connected with a liquid crystal display (2) and two AD sampling modules (3) used for collecting data, each AD sampling module (3) is respectively connected with a temperature signal processing module (4) and an acid-base concentration signal processing module (5); and the microprocessor (1) is also connected with photoelectric isolation modules (6) of two channels, which are used for output, the photoelectric isolation module (6) of each channel is connected with a DAC output module (7), and the DAC output module (7) of each channel is connected with a voltage-to-current conversion module (8). The dual-channel online acid-base concentration meter has the advantages of high degree of integration, small volume, convenient use, multiple channels and the like.
Description
Technical field
The utility model relates to the online acid base concentration meter of a kind of binary channels, belongs to online acid base concentration meter technical field.
Background technology
The acid base concentration meter is to measure HCL, NaOH, H
2SO4, NaCL, HNO
3,NaCO
3The instrument of concentration.Present online acid base concentration meter on the market, can only single passage, and intelligent degree is not high, numeral shows, also has the bigger problem of volume ratio, 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, and cost is also high.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of integrated degree height, volume little, the online acid base concentration meter of easy to operate binary channels is to overcome the deficiencies in the prior art.
The technical solution of the utility model is: structure comprises microprocessor, microprocessor connects LCDs, microprocessor connects 2 AD sampling modules that are used for image data, and each AD sampling module connects processes temperature signal module and acid base concentration signal processing module respectively; Microprocessor also connects the two passage photoelectric isolation modules that are used to export, and each photoelectric isolation module connects the DAC output module respectively, and each DAC output module connects the voltage transitions current module respectively.
The online acid base concentration meter of above-mentioned binary channels, the processes temperature signal module of each passage connects the temperature sensor of each passage, and the acid base concentration signal processing module of each passage connects the acid base concentration electrode of each passage.
Compared with the prior art, the utility model adopts mount technology, integrated degree height, it is wide that all components and parts are integrated into 130mm() * 120mm(height) a wiring board on, do not had complicated functional switch and adjusting knob, volume is little, and installation and use are all very convenient.The parameter of two passages is provided with separately, and adopts Chinese to show that it is explicit to operate on the LCDs.Separate between two passages, do not disturb mutually.The utlity model has advantages such as integrated degree height, volume is little, easy to use, passage is many simultaneously.
Description of drawings
Fig. 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 acid base concentration, temperature and electric current, 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 2 AD sampling modules 3 that are used for image data, and each AD sampling module 3 is selected the AD1112IDGST of 16 of binary channels, and a passage is adopted temperature, and a passage is adopted acid base concentration.Each AD sampling module 3 connects processes temperature signal module 4 and acid base concentration signal processing module 5 respectively; Each 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.Each acid base concentration signal processing module 5 adopts paster (two of TL062I, one of AD620) and paster CD4053 that SOP16 encapsulates of three SOP8 encapsulation respectively, volume be the classical acid alkali densimeter the signal processing part partial volume 1/10.Microprocessor 1 also connects the photoelectric isolation module 6 of two passages that are used to export, adopt the light lotus root of 3 TLP521-1 respectively, the photoelectric isolation module 6 of each passage connects DAC output module 7 respectively, and the DAC output module 7 of each passage connects voltage transitions current module 8 respectively.Each photoelectric isolation module 6 effect is that output is with not common-battery source, the not interference each other of acid base concentration part.Each DAC output module 7 adopts the DAC7512 chip, and volume has only 1/20 of common DAC chip.Each voltage transitions current module 8 adopts the LM324 chip.Each 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 8.
The processes temperature signal module 4 of each passage connects the temperature sensor 9 of each passage, and the acid base concentration signal processing module 5 of each passage connects the acid base concentration electrode 10 of each passage.
The power module that is provided with on the wiring board 11 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 (2)
1. online acid base concentration meter of binary channels, structure comprises microprocessor (1), it is characterized in that: microprocessor (1) connects LCDs (2), microprocessor (1) connects 2 the AD sampling modules (3) that are used for image data, and each AD sampling module (3) connects processes temperature signal module (4) and acid base concentration signal processing module (5) respectively; Microprocessor (1) also connects the two passage photoelectric isolation modules (6) that are used to export, the photoelectric isolation module of each passage (6) connects DAC output module (7) respectively, and the DAC output module (7) of each passage connects voltage transitions current module (8) respectively.
2. the online acid base concentration meter of binary channels according to claim 1, it is characterized in that: the processes temperature signal module (4) of each passage connects the temperature sensor (9) of each passage, and the acid base concentration signal processing module (5) of each passage connects the acid base concentration electrode (10) of each passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201640712U CN201637706U (en) | 2010-04-20 | 2010-04-20 | Dual-channel online acid-base concentration meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201640712U CN201637706U (en) | 2010-04-20 | 2010-04-20 | Dual-channel online acid-base concentration meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637706U true CN201637706U (en) | 2010-11-17 |
Family
ID=43082210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201640712U Expired - Fee Related CN201637706U (en) | 2010-04-20 | 2010-04-20 | Dual-channel online acid-base concentration meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664631A (en) * | 2012-04-18 | 2012-09-12 | 成都阜特科技有限公司 | Current loop isolation, transmission and integration module and multi-channel current transmitting system thereof |
-
2010
- 2010-04-20 CN CN2010201640712U patent/CN201637706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664631A (en) * | 2012-04-18 | 2012-09-12 | 成都阜特科技有限公司 | Current loop isolation, transmission and integration module and multi-channel current transmitting system thereof |
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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: 20101117 Termination date: 20140420 |