CN104655707A - Dissolved oxygen detection apparatus - Google Patents
Dissolved oxygen detection apparatus Download PDFInfo
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- CN104655707A CN104655707A CN201310590792.8A CN201310590792A CN104655707A CN 104655707 A CN104655707 A CN 104655707A CN 201310590792 A CN201310590792 A CN 201310590792A CN 104655707 A CN104655707 A CN 104655707A
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Abstract
The present invention discloses a dissolved oxygen detection apparatus, which comprises a housing, a control unit, a detection unit and a data processing unit, wherein the control unit, the detection unit and the data processing unit are arranged inside the housing, the control unit is provided with a human-computer interaction control operation interface and components thereof, and controls the operation of the whole apparatus, the detection unit is responsible for acquiring the dissolved oxygen concentration and other analog signals, converting the analog signals into digital signals, and performing related data acquisition according to the requirement of the control command, and the detection unit comprises four parts such as a dissolved oxygen analysis sensor, a power supply circuit, a clock signal circuit, a data acquisition circuit and a communication interface circuit. With the dissolved oxygen detection apparatus, the real-time monitoring or the long range monitoring can be achieved so as to substantially reduce manpower and resources. The dissolved oxygen detection apparatus has characteristics of simple operation, easy use, strong interference resistance, and long service life.
Description
Technical field
The present invention relates to checkout equipment technical field, refer in particular to a kind of dissolved oxygen DO pick-up unit.
Background technology
Dissolved oxygen content is the major criterion weighing water quality condition, is also a foundation of research water body self-purification ability.It is mainly derived from algae and the photosynthetic release of phytoplankton in the dissolving of air and ocean.In the decomposition of the respiration of marine animal, biological corpse and biological waste, seawater, the oxidation of other organic chemicals all consumes dissolved oxygen DO.Comparatively natural sea-water is low for contaminated seawater dissolved oxygen content, even completely anoxic.Along with the development of industrial and agricultural production, various industrial waste water, sanitary sewage, excessive fertilizer and pesticide etc. of using increasingly sharpens to the pollution of environment, especially water pollution has become the focus that people are concerned about, as one of the instruction standard of water quality, the mensuration of dissolved oxygen concentration is more and more important, and particularly the on-site rapid measurement of Dissolved Oxygen in Water is even more important.
The national standard method of current measurement Dissolved Oxygen in Water is winkler iodimetric titration, and this method exists need consume a large amount of samples, length consuming time, can not the shortcoming such as real time monitoring.Another kind of can the electrode type sensor of Site Detection dissolved oxygen concentration, as colourimetry, Primary-Secondary Wavelengths optical spectroscopy, voltammetry, Kind of Analyser of Minute Quantity Oxygen Based on Zirconia Cell, anionic polystyrene exchange membrane oxygen sensor etc. is all the lambda sensor belonging to electrode type, but because marking current is from producing the process of arrival balance slowly, limits measuring speed; And the ventilated membrane of electrode is easily aging, and it needs the redox reaction of electrode itself to measure the concentration of oxygen, needs to consume the dissolved oxygen DO in sample in mensuration process, and therefore its measuring accuracy and response time are all subject to severe constraints.At present, there are two large defects in polarographic dissolved oxygen analysis sensor on domestic and international market: one is that the cathode area of polarographic dissolved oxygen analysis sensor is very little, attract electrons ability is more weak, so limiting diffusion current very little (only having nA level), antijamming capability is weak.Two is that the oxygen permeation membrane of dissolved oxygen analyte sensors on domestic and international market selects tygon or teflon class plastic sheeting, the physical strength of this type of plastics ventilated membrane is less, serviceable life is short, need change ventilated membrane, cleaning sensor frequently, add the maintenance of dissolved oxygen analyte sensors.
The monitor data detected at current dissolved oxygen DO reads technically, well do not improved, how to read the data that dissolved oxygen DO detects, in prior art equipment, substantially be detect at the scene, scene manual record, need the time of at substantial, as because of carelessness, then Data Detection analysis is just inaccurate, this is by the manpower of at substantial, intricate operation is heavy, be not suitable for the nowadays people requirement to efficiency operation and intellectualized operation, dissolved oxygen DO pick-up unit of the prior art cannot meet more and more flourishing and that intelligence degree is more and more higher modern detecting.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose is to provide and can realizes Real-Time Monitoring or remote monitoring, greatly reduces manpower and materials, dissolved oxygen DO pick-up unit simple to operate, easy to use, the feature that it also has, and antijamming capability is strong, the life-span is long.
For achieving the above object, the present invention adopts following technical scheme: a kind of dissolved oxygen DO pick-up unit, include housing and install and housing in control module, detecting unit and data processing unit, described control module is operation interface and the parts thereof of human-computer interaction control, this detecting unit of operation controlling whole device is responsible for gathering the simulating signals such as dissolved oxygen concentration and simulating signal is transformed into digital signal and carries out the data acquisition of being correlated with according to the requirement of control command, described detecting unit includes dissolved oxygen analysis sensor, power circuit, clock signal circuit, data acquisition circuit and communication interface circuit four parts, wherein power circuit provides lasting reliable power supply supply for dissolved oxygen analysis sensor, clock signal circuit provides clock information accurately for dissolved oxygen analysis sensor, data acquisition module completes the data acquisition of dissolved oxygen analysis sensor, communication module and data processing unit carry out exchanges data, and the digital signal that data processing unit completes probe obtains carries out data processing.
As a kind of preferred version; the oxygen permeation membrane that described dissolved oxygen analysis sensor comprises plug receptacle, sensor mobile jib, sensor electrical pole piece, anode, negative electrode, oversheath and is fixed on bottom oversheath; the lower end of described negative electrode is fixed with sphere thin slice, and this sphere thin slice is made up of same material with described negative electrode; Described oxygen permeation membrane is composite metal semi-permeable diaphragm, is composited by plastics semi-permeable diaphragm and wire netting.
As a kind of preferred version, described negative electrode is made up of the glass bead of cathode filament and fixed negative pole silk, the cathode filament below described glass bead is fixed with described sphere thin slice, and this sphere thin slice is made up of same material with described cathode filament.
As a kind of preferred version, described oxygen permeation membrane presss from both sides wire netting described in one deck by plastics semi-permeable diaphragm and described plastics semi-permeable diaphragm and is composited.
As a kind of preferred version, described housing is provided with waterproof power switch and waterproof USB interface.
As a kind of preferred version, described detecting unit is also provided with temperature sensor, this temperature sensor and data processing unit are electrically connected, described control module is provided with a touch display screen, this touch display screen can manipulate whole pick-up unit, and the detection data of dissolved oxygen analysis sensor and temperature sensor are by reading in this touch display screen simultaneously.
As a kind of preferred version, described control module is provided with datalogger and 3G communication module, the data that this datalogger record dissolved oxygen analysis sensor and temperature sensor are monitored in real time, and undertaken analyzing and making monitoring string diagram accordingly by data analysis unit, this datalogger periodically sends data transfer command, and is sent to corresponding managerial personnel by 3G communication module and realizes real-time monitoring.
As a kind of preferred version, described control module master chip adopts model to be the control chip of M3062LFGPGP.
The present invention compared with prior art has obvious advantage and beneficial effect, specific as follows:
1, by under the cooperatively interacting of control module, detecting unit and data processing unit, realize the intelligentized control method of this dissolved oxygen DO pick-up unit, and can Real-Time Monitoring and remote monitoring be carried out.
2, the dissolved oxygen analysis sensor adopted in this detecting unit, set up one by face under the cathode and to increase the area of negative electrode with the mode of the sphere thin slice of material with negative electrode, enhance the ability of negative electrode attract electrons, reduce the interference that other materials cause the limiting diffusion current that dissolved oxygen DO produces, improve the antijamming capability of polarographic dissolved oxygen analysis sensor.Adopt the composite metal semi-permeable diaphragm that is composited by plastics semi-permeable diaphragm and wire netting instead of oxygen permeation membrane that tygon or teflon class plastics ventilated membrane do polarographic dissolved oxygen analysis sensor, owing to containing layer of metal net in composite metal semi-permeable diaphragm, make the physical strength of this kind of oxygen permeation membrane larger, long service life, decreases the maintenance of polarographic dissolved oxygen analysis sensor.This dissolved oxygen analysis sensor design is reasonable, structure simple, and applied widely, has good economic benefit after popularization.
3, this control module is provided with datalogger and 3G communication module, the data that this datalogger record dissolved oxygen analysis sensor and temperature sensor are monitored in real time, and undertaken analyzing and making monitoring string diagram accordingly by data analysis unit, this datalogger periodically sends data transfer command, and is sent to corresponding managerial personnel by 3G communication module and realizes real-time monitoring.Meanwhile, this housing is provided with USB interface, dissolved oxygen DO and the temperature data that can copy the corresponding time period as required carry out systematic analysis, to make more fully Water Quality Evaluation.
Accompanying drawing explanation
Fig. 1 is the structure diagram of dissolved oxygen analysis sensor in the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the embodiment of the present invention.
10, dissolved oxygen analysis sensor
11, plug receptacle 12, sensor mobile jib
13, sensor electrical pole piece 14, anode
15, negative electrode 16, oversheath
17, oxygen permeation membrane
18, sphere thin slice
141, cathode filament
142, glass bead.
Embodiment
Please refer to shown in Fig. 1 to Fig. 2, a kind of dissolved oxygen DO pick-up unit, include housing and install and housing in control module, detecting unit and data processing unit, described control module is operation interface and the parts thereof of human-computer interaction control, control the operation of whole device, this detecting unit is responsible for gathering the simulating signal such as dissolved oxygen concentration and simulating signal is transformed into digital signal and carries out the data acquisition of being correlated with according to the requirement of control command, described detecting unit includes dissolved oxygen analysis sensor, power circuit, clock signal circuit, data acquisition circuit and communication interface circuit four parts, wherein power circuit provides lasting reliable power supply supply for dissolved oxygen analysis sensor, clock signal circuit provides clock information accurately for dissolved oxygen analysis sensor, data acquisition module completes the data acquisition of dissolved oxygen analysis sensor, communication module and data processing unit carry out exchanges data, and the digital signal that data processing unit completes probe obtains carries out data processing.
The oxygen permeation membrane 17 that this dissolved oxygen analysis sensor 10 comprises plug receptacle 11, sensor mobile jib 12, sensor electrical pole piece 13, anode 14, negative electrode 15, oversheath 16 and is fixed on bottom oversheath 16, the lower end of described negative electrode 13 is fixed with sphere thin slice 18, and this sphere thin slice 18 is made up of same material with described negative electrode; Described oxygen permeation membrane 17 is composite metal semi-permeable diaphragm, is composited by plastics semi-permeable diaphragm and wire netting.
This negative electrode 15 is made up of the glass bead 152 of cathode filament 151 and fixed negative pole silk 151, and the cathode filament 151 below described glass bead 152 is fixed with described sphere thin slice 18, and this sphere thin slice 18 is made up of same material with described cathode filament 151.
This oxygen permeation membrane 17 presss from both sides wire netting described in one deck by plastics semi-permeable diaphragm and described plastics semi-permeable diaphragm and is composited.
This housing is provided with waterproof power switch and waterproof USB interface, the water resistance of this dissolved oxygen DO pick-up unit effectively can be improved by the setting of waterproof power switch and waterproof USB interface, simultaneously can by the detection data analysis required for this USB interface copy.
This detecting unit is also provided with temperature sensor, this temperature sensor and data processing unit are electrically connected, described control module is provided with a touch display screen, this touch display screen can manipulate whole pick-up unit, and the detection data of dissolved oxygen analysis sensor and temperature sensor are by reading in this touch display screen simultaneously.
This control module is provided with datalogger and 3G communication module, the data that this datalogger record dissolved oxygen analysis sensor and temperature sensor are monitored in real time, and undertaken analyzing and making monitoring string diagram accordingly by data analysis unit, this datalogger periodically sends data transfer command, and is sent to corresponding managerial personnel by 3G communication module and realizes real-time monitoring.
This control module master chip adopts model to be the control chip of M3062LFGPGP.
Design focal point of the present invention is: by under the cooperatively interacting of control module, detecting unit and data processing unit, realize the intelligentized control method of this dissolved oxygen DO pick-up unit, and can carry out Real-Time Monitoring and remote monitoring.
The dissolved oxygen analysis sensor adopted in this detecting unit, set up one by face under the cathode and to increase the area of negative electrode with the mode of the sphere thin slice of material with negative electrode, enhance the ability of negative electrode attract electrons, reduce the interference that other materials cause the limiting diffusion current that dissolved oxygen DO produces, improve the antijamming capability of polarographic dissolved oxygen analysis sensor.Adopt the composite metal semi-permeable diaphragm that is composited by plastics semi-permeable diaphragm and wire netting instead of oxygen permeation membrane that tygon or teflon class plastics ventilated membrane do polarographic dissolved oxygen analysis sensor, owing to containing layer of metal net in composite metal semi-permeable diaphragm, make the physical strength of this kind of oxygen permeation membrane larger, long service life, decreases the maintenance of polarographic dissolved oxygen analysis sensor.This dissolved oxygen analysis sensor design is reasonable, structure simple, and applied widely, has good economic benefit after popularization.
This control module is provided with datalogger and 3G communication module, the data that this datalogger record dissolved oxygen analysis sensor and temperature sensor are monitored in real time, and undertaken analyzing and making monitoring string diagram accordingly by data analysis unit, this datalogger periodically sends data transfer command, and is sent to corresponding managerial personnel by 3G communication module and realizes real-time monitoring.Meanwhile, this housing is provided with USB interface, dissolved oxygen DO and the temperature data that can copy the corresponding time period as required carry out systematic analysis, to make more fully Water Quality Evaluation.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every according to technical spirit of the present invention to any trickle amendment made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. a dissolved oxygen DO pick-up unit, it is characterized in that: include housing and install and housing in control module, detecting unit and data processing unit, described control module is operation interface and the parts thereof of human-computer interaction control, this detecting unit of operation controlling whole device is responsible for gathering the simulating signals such as dissolved oxygen concentration and simulating signal is transformed into digital signal and carries out the data acquisition of being correlated with according to the requirement of control command, described detecting unit includes dissolved oxygen analysis sensor, power circuit, clock signal circuit, data acquisition circuit and communication interface circuit four parts, wherein power circuit provides lasting reliable power supply supply for dissolved oxygen analysis sensor, clock signal circuit provides clock information accurately for dissolved oxygen analysis sensor, data acquisition module completes the data acquisition of dissolved oxygen analysis sensor, communication module and data processing unit carry out exchanges data, and the digital signal that data processing unit completes probe obtains carries out data processing.
2. a kind of dissolved oxygen DO pick-up unit according to claim 1; it is characterized in that: the oxygen permeation membrane that described dissolved oxygen analysis sensor comprises plug receptacle, sensor mobile jib, sensor electrical pole piece, anode, negative electrode, oversheath and is fixed on bottom oversheath; the lower end of described negative electrode is fixed with sphere thin slice, and this sphere thin slice is made up of same material with described negative electrode; Described oxygen permeation membrane is composite metal semi-permeable diaphragm, is composited by plastics semi-permeable diaphragm and wire netting.
3. a kind of dissolved oxygen DO pick-up unit according to claim 2, it is characterized in that: described negative electrode is made up of the glass bead of cathode filament and fixed negative pole silk, cathode filament below described glass bead is fixed with described sphere thin slice, this sphere thin slice is made up of same material with described cathode filament.
4. a kind of dissolved oxygen DO pick-up unit according to claim 2, is characterized in that: described oxygen permeation membrane presss from both sides wire netting described in one deck by plastics semi-permeable diaphragm and described plastics semi-permeable diaphragm and is composited.
5. a kind of dissolved oxygen DO pick-up unit according to claim 1, is characterized in that: described housing is provided with waterproof power switch and waterproof USB interface.
6. a kind of dissolved oxygen DO pick-up unit according to claim 1, it is characterized in that: described detecting unit is also provided with temperature sensor, this temperature sensor and data processing unit are electrically connected, described control module is provided with a touch display screen, this touch display screen can manipulate whole pick-up unit, and the detection data of dissolved oxygen analysis sensor and temperature sensor are by reading in this touch display screen simultaneously.
7. a kind of dissolved oxygen DO pick-up unit according to claim 6, it is characterized in that: described control module is provided with datalogger and 3G communication module, the data that this datalogger record dissolved oxygen analysis sensor and temperature sensor are monitored in real time, and undertaken analyzing and making monitoring string diagram accordingly by data analysis unit, this datalogger periodically sends data transfer command, and is sent to corresponding managerial personnel by 3G communication module and realizes real-time monitoring.
8. a kind of dissolved oxygen DO pick-up unit according to claim 1, is characterized in that: described control module master chip adopts model to be the control chip of M3062LFGPGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590792.8A CN104655707A (en) | 2013-11-20 | 2013-11-20 | Dissolved oxygen detection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590792.8A CN104655707A (en) | 2013-11-20 | 2013-11-20 | Dissolved oxygen detection apparatus |
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| CN104655707A true CN104655707A (en) | 2015-05-27 |
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| CN201310590792.8A Pending CN104655707A (en) | 2013-11-20 | 2013-11-20 | Dissolved oxygen detection apparatus |
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Cited By (2)
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| CN105572094A (en) * | 2016-02-03 | 2016-05-11 | 环境保护部南京环境科学研究所 | Detection device and detection method capable of measuring dissolved oxygen at different horizontal positions and different heights of mud-water interface simultaneously in situ |
| CN114252492A (en) * | 2021-12-31 | 2022-03-29 | 青岛罗博飞海洋技术有限公司 | Dissolved oxygen chip sensor self-calibration system and self-calibration method |
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| CN105572094A (en) * | 2016-02-03 | 2016-05-11 | 环境保护部南京环境科学研究所 | Detection device and detection method capable of measuring dissolved oxygen at different horizontal positions and different heights of mud-water interface simultaneously in situ |
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| CN114252492A (en) * | 2021-12-31 | 2022-03-29 | 青岛罗博飞海洋技术有限公司 | Dissolved oxygen chip sensor self-calibration system and self-calibration method |
| CN114252492B (en) * | 2021-12-31 | 2023-11-21 | 广东芯阅科技有限公司 | Dissolved oxygen chip sensor self-calibration system and self-calibration method |
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Application publication date: 20150527 |