CN203688442U - High-precision marine in-situ turbidity monitor - Google Patents
High-precision marine in-situ turbidity monitor Download PDFInfo
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- CN203688442U CN203688442U CN201320714246.6U CN201320714246U CN203688442U CN 203688442 U CN203688442 U CN 203688442U CN 201320714246 U CN201320714246 U CN 201320714246U CN 203688442 U CN203688442 U CN 203688442U
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- position monitoring
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Abstract
The utility model discloses a high-precision marine in-situ turbidity monitor. A shell made of a material resistant to seawater corrosion, a modulation-demodulation weak current signal amplification system and a low-power system circuit design are adopted, and a battery works for more than three months. The high-precision marine in-situ turbidity monitor has two working modes of real-time data transmission and underwater self-contained storage, and the maximum operating water depth is 3000m. The high-precision marine in-situ turbidity monitor can realize shipborne vertical section survey and determination of horizontal drag for turbidity of various water bodies such as oceans, deep lakes and the like and can be integrated to third-party platforms such as multiparameter systems, ocean buoys/subsurface buoys, seafloor observatory networks and the like for long-term in-situ monitoring.
Description
Technical field
The utility model relates to marine environment in-situ monitoring field, is specifically related to a kind of high precision ocean original position monitoring turbidimeter.
Background technology
Turbidity represents the muddy degree of water, and the turbidity of water hinders light by particle suspension materials such as silt, clay, algae and other microorganisms, insoluble inorganics and organism to be caused through water layer, can be absorbed and scattering by the part light of water body.The turbidity of water is higher, and reflected light and scattered light are just stronger, and transmitted light is just more weak; Otherwise the turbidity of water is lower, reflected light and scattered light are just more weak, and transmitted light is just stronger.Therefore, measure scattered light and transmitted intensity and change, just can record the turbidity of water.
Laboratory is used optical instrument to measure turbidity more at present.Optics turbidimetric apparatus mainly divides three types by principle: light transmission-type, light scattering type and transmission/scattering ratio type (integrating sphere turbidity), wherein light scattering type stable performance, is most widely used.By measuring 90 degree position scattered light intensities, determine sample turbidity value.International act.std IS07027 (90 ° ± 2.5 ° scattered lights) and USEPA180.1 (90 ° ± 30 ° scattered lights) all adopt this kind of method.
The outer manufacturer of Present Domestic has developed that the laboratory of Multiple Type is desk-top, field portable hand-held and industry spot on-line monitoring turbidimeter, is widely used in the fields such as laboratory detection, drinking water treatment, industrial process and production, boiler feed water, wastewater treatment, environment monitoring.Use but prior art mostly is indoor or shallow water, operating depth general tens meters to rice up to a hundred, and need external power source or flying power limited.Be difficult to meet marine monitoring to higher withstand voltage, the corrosive power of resistance to high salinity of sensor and degree of precision requirement, and there are the problems such as the power supply of continuous monitoring instrument, original position data acquisition in marine investigation.
Utility model content
For addressing the deficiencies of the prior art, the utility model provides a kind of high precision ocean original position monitoring turbidimeter, adopt seawater corrosion resistance material shell, modulation /demodulation small current amplify system and low power dissipation design, one batteries work is more than 3 months, have portable from storage and real-time Transmission function, can realize the boat-carrying vertical section investigation of the various water bodies such as ocean, Deep lake turbidity and level towing is measured, and can be integrated into the third-party platforms such as multiparameter system, oceanographic buoy/subsurface buoy, submarine observation network and carry out long-term in-situ monitoring.
For addressing the above problem, the present invention adopts following technical scheme: a kind of high precision ocean original position monitoring turbidimeter, it is characterized in that, and comprise following part:
(1) infrared excitation light source, described infrared excitation light source irradiates water sample with 45° angle, luminous by pulse current drive cycle;
(2) optical receiving system, described optical receiving system forms by receiving baffle plate, infrared fileter and photoelectric sensor, is 90 ° of angles, for receiving incident scattered light with excitation source;
(3) power management module, described power management module for whole system power management, is realized pulse excitation light source and is driven, and provides power supply for the realization of instrument signal collection, conversion, conditioning, storage, communication function;
(4) analog module, described analog module adopts exciting light modulation and switching detection synchronous demodulation weak current amplification system, realize slight photo-electric signal collection and conditioning, comprise current/voltage-converted, bandpass filtering, interchange amplification, switch filtering and low-pass filtering;
(5) digital circuit blocks, described digital circuit blocks adopts low-power consumption microprocessor and outside optimized circuit, realizes conversion, data storage and the Communication Control of simulating signal to digital signal;
(6) high-pressure-resistant sealed cabin, described high-pressure-resistant sealed cabin is used POM engineering plastics to be processed into, and bottom connects six core underwater electrical connectors and carries out communication, and the withstand voltage 30MPa that is designed to, can bear 0-3000m water depth pressure.
Further, described infrared excitation light source is direct insertion globe-type luminescence diode (LED), peak wavelength 850nm-880nm, half-intensity beam angle θ
1/2=6 °, light radiation intensity 80mW/sr.
Further, described excitation source and optical receiving system adopt the embedding of optical clear epoxide-resin glue.
Further, perforate in the middle of the receipts baffle plate of described exciting light source(-)holder and optical receiving system, for controlling by light intensity magnitude, can select suitable perforate size, changes sensing range and the sensitivity of instrument.
Further, system has normal mode of operation and low-power consumption park mode two states, can reduce interruption work power consumption.
Further, inside has original position data storage function, can carry out real-time data transmission and underwater self-containing formula storage work by stube cable.
Further, 400,000 groups of above data can be stored in inside.
The beneficial effects of the utility model are: adopt seawater corrosion resistance material shell and low power dissipation design, one batteries work is more than 3 months, accuracy of detection is high, have portable from storage and real-time Transmission function, can realize the boat-carrying vertical section investigation of the various water bodies such as ocean, Deep lake turbidity and level towing is measured, and can be integrated into the third-party platforms such as multiparameter system, oceanographic buoy/subsurface buoy, submarine observation network and carry out long-term in-situ monitoring.
Brief description of the drawings
Fig. 1 is physical construction diagrammatic cross-section of the present utility model;
Fig. 2 is apparent size schematic diagram of the present utility model;
Fig. 3 is Calibration curve of the present utility model.
In Fig. 1-3,1. end cap, 2. high-pressure-resistant sealed cabin, 3. underwater electrical connector, 4. photoelectric sensor, 5. infrared fileter, 6. receives baffle plate, 7. luminous base, 8. infrared LED light source, 9. analog module, 10. digital circuit blocks, 11. power management modules, 12. bottoms, 13. optical detection sensitizing ranges.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of high precision ocean original position monitoring turbidimeter as shown in Figure 1 and Figure 2, one-piece construction is cylindrical, long 114mm, external diameter 64mm, top is end cap 1 (comprising excitation source and detection window), middle for high-pressure-resistant sealed cabin 2, bottom 12 are connected with high-pressure-resistant sealed cabin 2 by 316 bolts, bottom six core underwater electrical connectors 3 are for electric communication.
Detection window is positioned at instrument top, as shown in Figure 1, two mutual circular hole slots are at an angle of 90 arranged at end cap 1 top, installation infrared excitation source and optical receiving system respectively, described optical receiving system is made up of photoelectric sensor 4, infrared fileter 5 and receipts baffle plate 6, and described infrared LED light source 8 is fixing by luminous base 7,2 fairleads are arranged at end cap 1 bottom, and photoelectric sensor 4 is connected with enclosure interior circuit board by two core shielded conductors respectively with infrared LED light source 8.Infrared LED light source 8 produces light after scattering, enters optical receiving system, sees through through receiving baffle plate 6 diaphragm controls and infrared fileter 5 selectivity, is finally received by photoelectric sensor 4, realizes photosignal conversion.Optical sensor district 13 is for receiving the detection sensitizing range of incident scattered light, change the perforate size of receiving baffle plate 6 and luminous base 7, can change exciting light and effective scattered light intensity, the size of optical detection sensitizing range 13 changes thereupon, can affect to a certain extent sensing range and the sensitivity of instrument.
Described high-pressure-resistant sealed cabin 2 is used POM engineering plastics to be processed into, and use deep-sea, bottom is connected to power management module 11 with underwater electrical connector 3, carries out externally fed, and is connected and obtains real time data with PC or data acquisition system (DAS) with RS-232 communication modes; Or connect underwater battery by underwater electrical connector 3 and carry out utonomous working, data are stored in inner FLASH chip.
Sensor is output as A/D signal value, need calibrate, by signal value and sample turbidity opening relationships.As shown in Figure 3, linear measurement range of the present invention is 0.01-200NTU after testing, R
2>=0.999.
Obviously, do not departing under the prerequisite of true spirit of the present utility model and scope, the utility model described here can have many variations.Therefore, all changes that it will be apparent to those skilled in the art that, within all should being included in the scope that these claims contain.The utility model scope required for protection is only limited by described claims.
Claims (7)
1. a high precision ocean original position monitoring turbidimeter, is characterized in that, comprises following part:
(1) infrared excitation light source, described infrared excitation light source irradiates water sample with 45° angle, luminous by pulse current drive cycle;
(2) optical receiving system, described optical receiving system forms by receiving baffle plate, infrared fileter and photoelectric sensor, is 90 ° of angles, for receiving incident scattered light with excitation source;
(3) power management module, described power management module for whole system power management, is realized pulse excitation light source and is driven, and provides power supply for the realization of instrument signal collection, conversion, conditioning, storage, communication function;
(4) analog module, described analog module adopts exciting light modulation and switching detection synchronous demodulation weak current amplification system, realize slight photo-electric signal collection and conditioning, comprise current/voltage-converted, bandpass filtering, interchange amplification, switch filtering and low-pass filtering;
(5) digital circuit blocks, described digital circuit blocks adopts low-power consumption microprocessor and outside optimized circuit, realizes conversion, data storage and the Communication Control of simulating signal to digital signal;
(6) high-pressure-resistant sealed cabin, described high-pressure-resistant sealed cabin is used POM engineering plastics to be processed into, and bottom connects six core underwater electrical connectors and carries out communication, and the withstand voltage 30MPa that is designed to, can bear 0-3000m water depth pressure.
2. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, is characterized in that: described infrared excitation light source is direct insertion globe-type luminescence diode (LED), peak wavelength 850nm-880nm, half-intensity beam angle θ
1/2=6 °, light radiation intensity 80mW/sr.
3. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, is characterized in that: described excitation source and optical receiving system adopt the embedding of optical clear epoxide-resin glue.
4. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, it is characterized in that: perforate in the middle of the receipts baffle plate of described exciting light source(-)holder and optical receiving system, pass through light intensity magnitude for controlling, suitable perforate size be can select, sensing range and the sensitivity of instrument changed.
5. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, is characterized in that: have normal mode of operation and low-power consumption park mode two states, can reduce interruption work power consumption.
6. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, is characterized in that: inside has original position data storage function, can carry out real-time data transmission and underwater self-containing formula storage work by stube cable.
7. a kind of high precision according to claim 1 ocean original position monitoring turbidimeter, is characterized in that: 400,000 groups of above data can be stored in inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714246.6U CN203688442U (en) | 2013-11-12 | 2013-11-12 | High-precision marine in-situ turbidity monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714246.6U CN203688442U (en) | 2013-11-12 | 2013-11-12 | High-precision marine in-situ turbidity monitor |
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| Publication Number | Publication Date |
|---|---|
| CN203688442U true CN203688442U (en) | 2014-07-02 |
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ID=51010328
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714246.6U Withdrawn - After Issue CN203688442U (en) | 2013-11-12 | 2013-11-12 | High-precision marine in-situ turbidity monitor |
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| Country | Link |
|---|---|
| CN (1) | CN203688442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645159A (en) * | 2013-11-12 | 2014-03-19 | 浙江大学苏州工业技术研究院 | High-precision sea in-situ turbidity monitor |
| CN108854541A (en) * | 2018-07-27 | 2018-11-23 | 中国科学院海洋研究所 | Multi-layer multi-stage original position high throughput filtration system |
-
2013
- 2013-11-12 CN CN201320714246.6U patent/CN203688442U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645159A (en) * | 2013-11-12 | 2014-03-19 | 浙江大学苏州工业技术研究院 | High-precision sea in-situ turbidity monitor |
| CN103645159B (en) * | 2013-11-12 | 2016-07-06 | 浙江大学苏州工业技术研究院 | A kind of High-precision sea in-situ turbidity monitor |
| CN108854541A (en) * | 2018-07-27 | 2018-11-23 | 中国科学院海洋研究所 | Multi-layer multi-stage original position high throughput filtration system |
| CN108854541B (en) * | 2018-07-27 | 2021-03-26 | 中国科学院海洋研究所 | Multi-layer multi-stage in-situ high-flux filtering system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |