CN202994720U - Liquid PH (potential of hydrogen) detecting and controlling system - Google Patents
Liquid PH (potential of hydrogen) detecting and controlling system Download PDFInfo
- Publication number
- CN202994720U CN202994720U CN 201220683588 CN201220683588U CN202994720U CN 202994720 U CN202994720 U CN 202994720U CN 201220683588 CN201220683588 CN 201220683588 CN 201220683588 U CN201220683588 U CN 201220683588U CN 202994720 U CN202994720 U CN 202994720U
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- chip microcomputer
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- crystal display
- single chip
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- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a liquid PH (potential of hydrogen) detecting and controlling system and belongs to the technical field of electronics. The system comprises a PH value acidity meter, a key module, a single chip microcomputer, a liquid crystal display, a carbon dioxide inflating electromagnetic valve device and a DC (Direct Current) power supply, wherein an electrode output voltage of the PH value acidity meter is connected with the single chip microcomputer through two signal lines, the key module is connected with the single chip microcomputer through four signal lines, an output signal of the single chip microcomputer is connected with the liquid crystal display through five signal lines, a control output signal of the single chip microcomputer is connected with the carbon dioxide inflating electromagnetic valve device through two signal lines, and the DC power supply is connected with the single chip microcomputer through two power lines. By adopting the system, after the required PH range values are set by using the key module, the liquid PH is automatically adjusted, a current PH value and an on-off condition of the electromagnetic valve can be displayed on the liquid crystal display, and the system is very suitable for special control on the liquid PH in an aquaculture laboratory and is simple and convenient.
Description
Technical field
The utility model relates to a kind of control system of liquid acid basicity, and specifically a kind of can control makes liquid acid basicity maintenance a kind of control system within the specific limits in laboratory environment, belongs to electronic technology field.
Background technology
In the situation that changing to grow, acidity causes the variation of all kinds of indexs for the observation analysis sea life, need to carry out the setting of potential of hydrogen and can control the seawater in different tanks in the laboratory, it is remained in certain pH-value scope, after the potential of hydrogen of this type of test at present all is labor measurement, then carrying out artificial potential of hydrogen regulates, causing like this and regulate the untimely and large deficiency of experimenter's labour intensity, is a urgent problem.
Summary of the invention
The purpose of this utility model is to provide a kind of liquid acid basicity and detects control system.
Problem to be solved in the utility model is that existing artificial potential of hydrogen is regulated the not prompt enough and large deficiency of personnel labor intensity.
For realizing the purpose of this utility model, the technical solution adopted in the utility model is:
Liquid acid basicity detects control system, comprise pH value acidometer, key-press module, single-chip microcomputer, liquid crystal display, carbon dioxide inflation electromagnetic valve device and direct supply, pH value pH electrode output voltage is connected with single-chip microcomputer through two signal wires, key-press module is connected with single-chip microcomputer through four signal wires, and the output signal of single-chip microcomputer is connected with liquid crystal display through five signal wires; The control output signal of single-chip microcomputer is connected with carbon dioxide inflation electromagnetic valve device through two signal wires; Direct supply is connected with single-chip microcomputer through two power leads.
Described pH value acidity is counted plum Teller-Tuo benefit 320 types.
Described single-chip microcomputer is the C8051F350 type.
Described liquid crystal display is the 12232F type.
Native system the utility model has the advantages that: after can be set the potential of hydrogen value range that requires according to key-press module, the potential of hydrogen of liquid automatically adjusts, the switching situation that can also show current pH value and solenoid valve on liquid crystal display, the special control of very suitable aquaculture laboratory to liquid acid basicity, simple and convenient, should have the wide market space.
Description of drawings
Fig. 1 is the schematic diagram that the utility model liquid acid basicity detects control system;
In figure: 1, pH value acidometer 2, key-press module 3, single-chip microcomputer 4, liquid crystal display 5, carbon dioxide inflation electromagnetic valve device 6, direct supply.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, liquid acid basicity detects control system, comprise pH value acidometer 1, key-press module 2, single-chip microcomputer 3, liquid crystal display 4, carbon dioxide inflation electromagnetic valve device 5 and direct supply 6, pH value acidometer 1 electrode output voltage is connected with single-chip microcomputer 3 through two signal wires, key-press module 2 is connected with single-chip microcomputer 3 through four signal wires, and the output signal of single-chip microcomputer 3 is connected with liquid crystal display 4 through five signal wires; The control output signal of single-chip microcomputer 3 is connected with carbon dioxide inflation electromagnetic valve device 5 through two signal wires; Direct supply 6 is connected with single-chip microcomputer 3 through two power leads.
Described pH value acidometer 1 is plum Teller-Tuo benefit 320 types, is used for the potential of hydrogen that detects is converted into electrical signal transfer to single-chip microcomputer 3.
Described single-chip microcomputer 3 is the C8051F350 type, be used for the signal with 1 output of pH value acidometer, be calculated to be corresponding pH value, by comparing with the pH value scope of setting, thereby control 5 pairs of liquid of carbon dioxide inflation electromagnetic valve device and carry out the carbon dioxide ventilating control, and then liquid is carried out PH regulate, make acidity meet normal requirement.
Described liquid crystal display 4 is the 12232F type, uses serial communication with single-chip microcomputer 3, can show two row Chinese characters, shows current pH value and the switching situation of solenoid valve on the first row, shows the PH value range of 2 settings on the second row.
Carbon dioxide inflation electromagnetic valve device 5 adopts 12V DC electromagnetic valve 2W-160-15 type to control it by single-chip microcomputer 3 and opens and close; Direct supply 6 adopts the 12V/2A constant voltage dc source to provide electric energy for single-chip microcomputer 3.
Key-press module 2 has three and controls button, and one is pH value set-up function key, and another two are respectively the increase key and reduce key, and having the quick add-minus function of button.
The principle of work of native system: native system is arranged on Laboratory culture tank side, carbon dioxide steel cylinder accesses in the tank liquid through carbon dioxide inflation electromagnetic valve device 5 through reduction valve output two vaporized carbon gases again, pH value acidometer 1 test electrode inserts in liquid, set the pH value scope of requirement with key-press module 2, native system is just started working; When the pH value of liquid raises, the pH value that measures by pH value acidometer 1 and the value range of setting are after relatively, if pH value single-chip microcomputer 3 bigger than normal is controlled carbon dioxide inflation electromagnetic valve device 5 and is opened, carbon dioxide is filled with pH value is reduced, when pH value is reduced to the scope of setting, pH value acidometer 1 feedback signal, single-chip microcomputer 3 are controlled through carbon dioxide inflation electromagnetic valve device 5 and are closed.Thereby the pH value of liquid is kept within the limits prescribed, guarantee the validity of experiment condition, simple and convenient.
Claims (4)
1. liquid acid basicity detects control system, comprise pH value acidometer (1), key-press module (2), single-chip microcomputer (3), liquid crystal display (4), carbon dioxide inflation electromagnetic valve device (5) and direct supply (6), it is characterized in that: pH value acidometer (1) electrode output voltage is connected with single-chip microcomputer (3) through two signal wires, key-press module (2) is connected with single-chip microcomputer (3) through four signal wires, and the output signal of single-chip microcomputer (3) is connected with liquid crystal display (4) through five signal wires; The control output signal of single-chip microcomputer (3) is connected with carbon dioxide inflation electromagnetic valve device (5) through two signal wires; Direct supply (6) is connected with single-chip microcomputer (3) through two power leads.
2. liquid acid basicity according to claim 1 detects control system, and it is characterized in that: described pH value acidometer (1) is plum Teller-Tuo benefit 320 types.
3. liquid acid basicity according to claim 1 detects control system, and it is characterized in that: described single-chip microcomputer (3) is the C8051F350 type.
4. liquid acid basicity according to claim 1 detects control system, and it is characterized in that: described liquid crystal display (4) is the 12232F type.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683588 CN202994720U (en) | 2012-12-12 | 2012-12-12 | Liquid PH (potential of hydrogen) detecting and controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683588 CN202994720U (en) | 2012-12-12 | 2012-12-12 | Liquid PH (potential of hydrogen) detecting and controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202994720U true CN202994720U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683588 Expired - Fee Related CN202994720U (en) | 2012-12-12 | 2012-12-12 | Liquid PH (potential of hydrogen) detecting and controlling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202994720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853201A (en) * | 2014-03-27 | 2014-06-11 | 中国水产科学研究院黄海水产研究所 | Device for simulating climate warming to adjust pH value of water body |
-
2012
- 2012-12-12 CN CN 201220683588 patent/CN202994720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853201A (en) * | 2014-03-27 | 2014-06-11 | 中国水产科学研究院黄海水产研究所 | Device for simulating climate warming to adjust pH value of water body |
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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: 20130612 Termination date: 20131212 |