CN103645159B - A kind of High-precision sea in-situ turbidity monitor - Google Patents
A kind of High-precision sea in-situ turbidity monitor Download PDFInfo
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- CN103645159B CN103645159B CN201310563156.6A CN201310563156A CN103645159B CN 103645159 B CN103645159 B CN 103645159B CN 201310563156 A CN201310563156 A CN 201310563156A CN 103645159 B CN103645159 B CN 103645159B
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Abstract
The invention discloses a kind of High-precision sea in-situ turbidity monitor, adopt seawater corrosion resistance material envelope, modulation /demodulation low current signal amplifies and low-power dissipation system circuit design, one batteries works more than 3 months, possess real-time data transmission and underwater self-containing two kinds of mode of operations of storage, maximum operating water depth 3000m, the boat-carrying vertical section investigation of the various water bodies turbidity such as ocean, Deep lake can be realized and level towing measures, and multiparameter system can be integrated into, oceanographic buoy/third-party platform such as subsurface buoy, submarine observation network carries out long-term in-situ monitoring.
Description
Technical field
The present invention relates to marine environment in-situ monitoring field, be specifically related to a kind of High-precision sea in-situ turbidity monitor.
Background technology
Turbidity represents the muddy degree of water, and the turbidity of water is hindered light therethrough water layer to cause by particle suspension materials such as silt, clay, algae and other microorganisms, insoluble inorganic matter and Organic substances, namely can be absorbed and scattering by the some light of water body.The turbidity of water is more high, and reflection light and scattering light are more strong, and transmission light is more weak；Otherwise, the turbidity of water is more low, and reflection light and scattering light are more weak, and transmission light is more strong.Therefore, scattering light and transmitted intensity change are measured, it is possible to record the turbidity of water.
Turbidity measured by current laboratory many uses optical instrument.Optical turbidity measuring instrument 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 of position scattered light intensities, it is determined that sample turbidity value.International working standard ISO7027 (90 ° ± 2.5 ° scattering light) and USEPA180.1 (90 ° ± 30 ° scattering light) all adopt this method.
The outer manufacturer of Present Domestic has been developed over the lab bench of Multiple Type, field portable hand-held and industry spot on-line monitoring transmissometer, is widely used in the fields such as test in laboratory, drinking water treatment, industrial process and production, boiler feed water, sewage disposal, environment monitoring.But prior art mostly is indoor or shallow water use, general tens meters of operating depth arrives rice up to a hundred, and needs external power source or flying power limited.Be difficult to meet marine monitoring to higher pressure, the resistance to high salinity corrosive power of sensor and degree of precision requirement, and marine investigation exist continuous monitoring instrument power, the problems such as original position data acquisition.
Summary of the invention
For solving the defect of prior art, the present invention provides a kind of High-precision sea in-situ turbidity monitor, adopt seawater corrosion resistance material envelope, modulation /demodulation low current signal amplification system and low power dissipation design, one batteries works more than 3 months, have portable from storage and real-time Transmission function, the boat-carrying vertical section investigation of the various water bodies turbidity such as ocean, Deep lake can be realized and level towing measures, and multiparameter system can be integrated into, oceanographic buoy/third-party platform such as subsurface buoy, submarine observation network carries out long-term in-situ monitoring.
For solving the problems referred to above, the present invention adopts the following technical scheme that a kind of High-precision sea in-situ turbidity monitor, it is characterised in that include with lower 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 is formed by receiving baffle plate, infrared fileter and photoelectric sensor, is 90 ° of angles with excitation source, is used for receiving incident scatter light；
(3) power management module, described power management module is used for whole system power management, it is achieved pulse excitation light source drives, and the realization for instrument signal collection, conversion, conditioning, storage, communication function provides power supply；
(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, including current/voltage-converted, bandpass filtering, exchange amplification, switch filtering and low-pass filtering；
(5) digital circuit blocks, described digital circuit blocks adopts low-power microprocessor and external circuit optimization design, it is achieved analogue signal is to the conversion of digital signal, data storage and Communication Control；
(6) high-pressure-resistant sealed cabin, described high-pressure-resistant sealed cabin uses POM engineering plastics to be processed into, and bottom connects six core underwater electrical connectors and carries out communication, pressure is designed as 30MPa, can bear 0-3000m water depth pressure.
Further, described infrared excitation light source is direct insertion globe-type luminescence diode (LightEmittingDiode, LED), peak wavelength 850nm-880nm, half-intensity beam angle θ1/2=6 °, light radiation intensity 80mW/sr.
Further, described excitation source and optical receiving system adopt optical clear epoxide-resin glue embedding.
Further, the receipts baffle plate central aperture of described exciting light source(-)holder and optical receiving system, passes through light intensity magnitude for control, it is possible to select suitable perforate size, changes detection range and the sensitivity of instrument.
Further, system has normal mode of operation and Low-power-consumptiodormancy dormancy pattern two states, it is possible to reduce discontinuous power consumption.
Further, inside has original position data storage function, can connect cable and carry out real-time data transmission and underwater self-containing formula storage work.
Further, inside can store 400,000 groups of data above.
The invention has the beneficial effects as follows: adopt seawater corrosion resistance material envelope and low power dissipation design, one batteries works more than 3 months, accuracy of detection is high, have portable from storage and real-time Transmission function, the boat-carrying vertical section investigation of the various water bodies turbidity such as ocean, Deep lake can be realized and level towing measures, and multiparameter system can be integrated into, oceanographic buoy/third-party platform such as subsurface buoy, submarine observation network carries out long-term in-situ monitoring.
Accompanying drawing explanation
Fig. 1 is the frame for movement generalized section of the present invention；
Fig. 2 is the apparent size schematic diagram of the present invention；
Fig. 3 is the Calibration curve of the present invention.
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.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of High-precision sea in-situ turbidity monitor as shown in Figure 1 and Figure 2, overall structure is cylindrical, long 114mm, external diameter 64mm, top is end cap 1 (including excitation source and detection window), centre is high-pressure-resistant sealed cabin 2, bottom 12 is connected with high-pressure-resistant sealed cabin 2 by 316 bolts, and bottom six core underwater electrical connector 3 is for electrical communications.
Detection window is positioned at instrument tip, as shown in Figure 1, two mutual circular hole slots at an angle of 90 are arranged at end cap 1 top, it is respectively mounted infrared excitation light source and optical receiving system, 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 fixed by luminous base 7,2 fairleads, photoelectric sensor 4 and infrared LED light source 8 is had to be connected with enclosure interior circuit board respectively through two core shielded conductors bottom end cap 1.Infrared LED light source 8 produces after light is scattered, to enter optical receiving system, controls and infrared fileter 5 selectivity passes through through receiving baffle plate 6 diaphragm, is finally received by photoelectric sensor 4, it is achieved photoelectric signal transformation.Optical sensor district 13 is the detection sensitizing range that can receive incident scatter light, change the perforate size receiving baffle plate 6 and luminous base 7, exciting light and effective scattered light intensity can be changed, the size of optical detection sensitizing range 13 changes therewith, can affect detection range and the sensitivity of instrument to a certain extent.
Analog module 9 is connected to bottom end cap 1 by 3 hexagonal copper posts, and is connected digital circuit blocks 10 and power management module 11 according to this by hexagonal copper post, is realized circuit by connector on plate and connect between three pieces of circuit modules.Photoelectric sensor 4 is connected to analog module 9 by two core shielding lines, it is achieved photoelectric signal collection, and infrared excitation light source 8 is connected with power management module 11, drives LED pulsed illumination.
Described high-pressure-resistant sealed cabin 2 uses POM engineering plastics to be processed into, and use deep-sea, bottom underwater electrical connector 3 is connected to power management module 11, carries out externally fed, and is connected acquisition real time data with PC or data collecting system with RS-232 communication modes；Or connect underwater battery carry out utonomous working by underwater electrical connector 3, data are stored in internal FLASH chip.
Sensor is output as A/D signal value, need to be calibrated, by signal value and sample turbidity opening relationships.As it is shown on figure 3, the linear measurement range of the present invention is 0.01-200NTU, R after testing2≥0.999。
It is clear that under the premise of the true spirit and scope that not necessarily depart from the present invention, invention described herein can have many changes.Therefore, all changes that it will be apparent to those skilled in the art that, it is intended to be included within the scope that present claims book is contained.Present invention scope required for protection is only defined by described claims.
Claims (7)
1. a High-precision sea in-situ turbidity monitor, it is characterised in that include with lower 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 is formed by receiving baffle plate, infrared fileter and photoelectric sensor, is 90 ° of angles with excitation source, is used for receiving incident scatter light；
(3) power management module, described power management module is used for whole system power management, it is achieved pulse excitation light source drives, and the realization for instrument signal collection, conversion, conditioning, storage, communication function provides power supply；
(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, including current/voltage-converted, bandpass filtering, exchange amplification, switch filtering and low-pass filtering；
(5) digital circuit blocks, described digital circuit blocks adopts low-power microprocessor and outside optimization circuit, it is achieved analogue signal is to the conversion of digital signal, data storage and Communication Control；
(6) high-pressure-resistant sealed cabin, described high-pressure-resistant sealed cabin uses POM engineering plastics to be processed into, and bottom connects six core underwater electrical connectors and carries out communication, pressure is designed as 30MPa, can bear 0-3000m water depth pressure.
2. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterised in that: described infrared excitation light source is direct insertion globe-type luminescence diode, peak wavelength 850nm-880nm, half-intensity beam angle θ1/2=6 °, light radiation intensity 80mW/sr.
3. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterised in that: described excitation source and optical receiving system adopt optical clear epoxide-resin glue embedding.
4. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterized in that: the receipts baffle plate central aperture of described exciting light source(-)holder and optical receiving system, for controlling to pass through light intensity magnitude, it is possible to select suitable perforate size, change detection range and the sensitivity of instrument.
5. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterised in that: there is normal mode of operation and Low-power-consumptiodormancy dormancy pattern two states, it is possible to reduce discontinuous power consumption.
6. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterised in that: inside has original position data storage function, can connect cable and carry out real-time data transmission and underwater self-containing formula storage work.
7. a kind of High-precision sea in-situ turbidity monitor according to claim 1, it is characterised in that: inside can store 400,000 groups of data above.
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| CN201310563156.6A CN103645159B (en) | 2013-11-12 | 2013-11-12 | A kind of High-precision sea in-situ turbidity monitor |
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| CN103645159B true CN103645159B (en) | 2016-07-06 |
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| CN104251844B (en) * | 2014-09-19 | 2016-03-30 | 中国人民解放军理工大学 | A kind of hyperchannel seawater transparency measurement mechanism and method thereof |
| CN106061046B (en) * | 2016-08-15 | 2018-02-27 | 长江勘测规划设计研究有限责任公司 | Underwater lighting light fixture and its light-dimming method based on transmission haze measuring principle |
| CN106290515B (en) * | 2016-10-28 | 2019-06-14 | 国家海洋技术中心 | The self calibration ocean multi-parameter chemical sensor of micro-fluidic replaceable cavity body structure |
| CN107356542B (en) * | 2017-08-28 | 2023-08-08 | 中国科学院海洋研究所 | Multi-parameter observation system for underwater light field and marine environment |
| CN107894381B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | South is for river Sand measuring device and method |
| CN110576954B (en) * | 2019-08-29 | 2024-04-02 | 自然资源部第二海洋研究所 | Towed system for observing chemical parameters of water transverse and longitudinal sections |
| CN110726719A (en) * | 2019-10-17 | 2020-01-24 | 广西贺州市桂东电子科技有限责任公司 | Device and method for detecting content of chloride ions in anodic formed foil electrolyte |
| CN116930141A (en) * | 2023-09-13 | 2023-10-24 | 国家海洋技术中心 | CDOM deep sea sensor by ultraviolet fluorescence analysis method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193592A (en) * | 1998-12-28 | 2000-07-14 | Horiba Ltd | Scattering/transmission ratio type turbidity meter |
| CN102004077A (en) * | 2010-10-08 | 2011-04-06 | 中国农业大学 | Turbidity transducer |
| CN202693474U (en) * | 2012-08-17 | 2013-01-23 | 重庆市科学技术研究院 | Turbidity sensor for water quality on producing line detection |
| CN203688442U (en) * | 2013-11-12 | 2014-07-02 | 浙江大学苏州工业技术研究院 | High-precision marine in-situ turbidity monitor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6842243B2 (en) * | 2001-12-10 | 2005-01-11 | Apprise Technologies, Inc. | Turbidity sensor |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193592A (en) * | 1998-12-28 | 2000-07-14 | Horiba Ltd | Scattering/transmission ratio type turbidity meter |
| CN102004077A (en) * | 2010-10-08 | 2011-04-06 | 中国农业大学 | Turbidity transducer |
| CN202693474U (en) * | 2012-08-17 | 2013-01-23 | 重庆市科学技术研究院 | Turbidity sensor for water quality on producing line detection |
| CN203688442U (en) * | 2013-11-12 | 2014-07-02 | 浙江大学苏州工业技术研究院 | High-precision marine in-situ turbidity monitor |
Non-Patent Citations (1)
| Title |
|---|
| 用于海洋现场监测的小型叶绿素a荧光计和浊度计;王岩峰 等;《海洋技术》;20070331;第26卷(第1期);第29-32页 * |
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