CN201497703U - Turbidity sensor - Google Patents
Turbidity sensor Download PDFInfo
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- CN201497703U CN201497703U CN2009202208367U CN200920220836U CN201497703U CN 201497703 U CN201497703 U CN 201497703U CN 2009202208367 U CN2009202208367 U CN 2009202208367U CN 200920220836 U CN200920220836 U CN 200920220836U CN 201497703 U CN201497703 U CN 201497703U
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Abstract
The utility model relates to an on-line measurement turbidity sensor with an improved structure. An optical measuring system and a measurement control system are arranged inside a cylindrical casing. The optical measuring system comprises a light source, a photoelectric receiver and an optical window. The optical window is fabricated from infrared transmission visible light absorption glass made of special material, which can transmit infrared light with wavelength larger than 800 nm and absorb visible light. The optical window is a boss shaped glass window arranged at the front end of the cylindrical casing, the bulge part of the boss is extended into a round opening at the front end of the cylindrical casing, the disk part of the boss is clamped between the cylindrical casing and an optical window fixing bracket, and the optical window is fixed and fastened through the compression between the optical window fixing bracket and the front end of the casing. The disk part of the boss and the front end of the cylindrical casing are sealed through an O-shaped ring. The turbidity sensor has reduced volume, is convenient for fixing and mounting, and is easy for integration. In addition, a light transmitter adopts two LED light sources, so as to increase light source intensity and improve the measurement accuracy in case of low turbidity measurement.
Description
Technical field
The utility model relates to the water quality measurement instrument, particularly relates to being extensive use of the optical instrument that the water quality turbidity is measured in ocean, rivers, lake etc.
Background technology
The turbidity value of water body is the important parameter of water quality ecological monitoring.Owing to exist various insoluble suspension materials in the water body, make water body present a kind of opaque optical property, and turbidimetry is exactly an opaque degree of measuring water body, i.e. turbidity value.
When the incident light of a branch of fixed wave length injects in the water, scattering phenomenon appears in suspension surface different angles in the water.Utilize with incident light to become to receive the value that the scattered light intensity of unifying wavelength is determined turbidity on the fixed angle principle of Here it is turbidimetry.
At present, to the measurement of water body turbidity, mainly contain on-the-spot colorimetric analysis, laboratory measurement, three kinds of methods of on-site on-line measurement.On-the-spot colorimetric analysis method is that tested water body and the standard turbidity sample that configures are in advance determined its turbidity value in the mode of carrying out colorimetric, and measurement result is subjected to the restriction of standard turbidity sample.Laboratory measurement need be taked water sample, measures on laboratory or research ship again, can not react the on-the-spot True Data of water body.On-site on-line measurement can be monitored the turbidity situation of change of water body in real time, but there is the shortcoming that volume is big, power consumption is high in existing turbidity transducer, not too is applicable on apparatus such as buoy, water quality monitor integrated.
Fig. 1 shows the on-site on-line measurement turbidity transducer of prior art.As shown in Figure 1, turbidity transducer is cylindrical structure, on the column sealed housing front end face windowpane is set, windowpane adopts K9 material glass, and the back of windowpane is provided with square gland, and square gland is fixed on the seal casinghousing front end, windowpane covers the cylindrical hole of square gland, forms transparent window.Optical transmitting set and photelectric receiver are arranged in the square gland of seal casinghousing front end, and the optical axis of optical transmitting set and photelectric receiver becomes 60 ° of angles, between photelectric receiver and the windowpane optical filter is set.Optical transmitting set is connected with the interior circuit board of photelectric receiver and seal casinghousing, and the circuit board in the seal casinghousing is connected with the underwater electrical connector of seal casinghousing rear end.
When turbidity transducer shown in Figure 1 is put in submersible service, in the illumination jetting that optical transmitting set 5 sends behind the suspension to producing scattering, photelectric receiver 3 receiving unit scattered lights, scattered light signal underwater electrical connector and the underwater cable by the seal casinghousing rear end after changing that receives is delivered to display waterborne, shows and writes down turbidity value under water.
But, the turbidity transducer of Xian You Ji Intraoperative shown in Figure 1, the seal casinghousing front end adopts the unitized construction of windowpane and gland, lens and optical filter also are set between photelectric receiver and the windowpane, there are complex structure, bulky shortcoming, are unfavorable on Yi Qi Let such as buoy, water quality monitor are equipped with integrated.And, single light source irradiation low suspension thing scattered light intensity a little less than, the degree of accuracy of the low turbidimetry of influence.
Summary of the invention
At existing water body turbidimetry and the existing problem of turbidity transducer, the utility model is released the on-site on-line measurement turbidity transducer that improves structure, its optical window adopts the glass processing of special material to form, and the light of specific band is passed through, and plays the effect of optical filter.The optical window glass processing becomes the boss shape, and volume reduces, and is convenient to fixed installation, is easier to the integrated of sensor.And optical transmitting set adopts two light sources, has increased the intensity of light source, the measuring accuracy when having improved low turbidimetry.
The related turbidity transducer shell of the utility model is cylindrical, is made up of cylindrical shell, optical window fixed mount and base.The cylindrical shell front end has circular uncovered, and the optical window fixed mount is circular, and the optical window fixed mount is by being threaded and being fastened on the cylindrical shell front end outside.Base is encapsulated in the rear end of cylindrical shell, between cylindrical shell and the base by being threaded.
Optical measuring system and Measurement and Control System are arranged in the cylindrical shell.Optical measuring system comprises light source, photelectric receiver and optical window.
Optical window is the glass window of boss shape, is arranged on the front end of cylindrical shell, and the boss projection is stretched in cylindrical shell front end circular uncovered, and boss projection front end face and cylindrical shell front end face are in the same plane.The boss integrated disc portions is stuck between cylindrical shell and the optical window fixed mount, by pressing between optical window fixed mount and the housing front end, makes the optical window fixation.Between boss integrated disc portions and the cylindrical shell front end by seal with O ring.The material of optical window is an infrared transmission visible absorption glass, sees through the infrared light of wavelength greater than 800nm, absorbs visible light.
There is the optical device fixed mount optical window inboard, and the light source hole of two symmetries is arranged on the optical device fixed mount, and the angle of light source hole center line is 60 °, and led light source is installed in the light source hole.A groove is opened in the center of optical device fixed mount, and photelectric receiver is installed in the bottom of groove, and the optical axis included angle of photelectric receiver and two light source holes is respectively 30 °.
Measurement and Control System comprises: power supply, control circuit, data acquisition circuit, single-chip microcomputer.Power supply, control circuit, data acquisition circuit, single-chip microcomputer are fixed on the interior circuit board of cylindrical shell, and corresponding connection is arranged.
One end of circuit board and optics fixed mount are by bolt, and the other end is fixedlyed connected with base.Light source all is connected with control circuit with photelectric receiver, and the pin of light source and photelectric receiver is welded on the circuit board respectively.The underwater electrical connector that data acquisition circuit connects on the base of seal casinghousing rear end connects.Turbidity transducer can be directly installed on buoy or other measuring tables by the underwater electrical connector of seal casinghousing rear end, and also can arrange in pairs or groups computing machine or palm machine are directly measured.
When the related turbidity transducer of the utility model is applied under water turbidimetry, two led light sources send the pulse directional light of fixed frequency respectively, light enters in the measured water body by optical window, suspension in the irradiation water, photelectric receiver receives the part scattered light that suspension produces in the water, the scattered light signal that receives is directly exported turbidity value with the RS232 communication modes after changing, and is delivered to display waterborne by underwater electrical connector, shows and record.Adopt transmitted infrared light to absorb the optical window of visible light glass, see through the infrared light of wavelength, absorb visible light, save the preceding ad hoc optical filter of photelectric receiver greater than 800nm.The optical window glass processing becomes the boss shape, and volume reduces, and be convenient to fixed installation, and the front end face of optical window boss projection front end face and cylindrical shell is in the same plane, is difficult for bad student's bubble, is easier to the integrated of sensor and use.Optical transmitting set adopts two light sources, has increased the intensity of light source, the measuring accuracy when having improved low turbidimetry.Turbidity transducer offers the turbidity transducer different command according to host computer, can realize every functions such as measurement, calibration, and supply voltage is 5V～12V, and is convenient and swift, simple to operate.
Description of drawings
The turbidity transducer structural representation of Fig. 1 Wei Xian You Ji Intraoperative.
Fig. 2 is the structural representation of turbidity transducer of the present utility model.
Description of symbols among the figure:
1, windowpane 2, square gland
3, optical filter 4, photelectric receiver
5, optical transmitting set 6, optical window fixed mount
7, optical window 8, cylindrical shell
9, optical device fixed mount 10, light source
11, photelectric receiver 12, bolt
13, circuit board 14, base
15, underwater electrical connector
Embodiment
Now in conjunction with the accompanying drawings embodiment of the present utility model is illustrated.Fig. 2 shows the basic structure of turbidity transducer of the present utility model.
As shown in the figure, the related turbidity transducer shell of the utility model is cylindrical, is made up of cylindrical shell 8, optical window fixed mount 6 and base 14.The cylindrical shell front end has circular uncovered, and optical window fixed mount 6 is circular, and optical window fixed mount 6 is by being threaded and being fastened on the cylindrical shell front end outside.Base 14 is encapsulated in the rear end of cylindrical shell 8, between cylindrical shell 8 and the base 14 by being threaded.
Optical measuring system and Measurement and Control System are arranged in the cylindrical shell 8.Optical measuring system comprises light source 10, photelectric receiver 11 and optical window 7.
Optical window 7 is the glass window of boss shape, is arranged on the front end of cylindrical shell 8, and the boss projection is stretched in cylindrical shell 8 front ends circular uncovered, and the front end face of boss projection front end face and cylindrical shell 8 is in the same plane.Optical transmitting set adopts two light sources, has increased the boss integrated disc portions and has been stuck between cylindrical shell 8 and the optical window fixed mount 6, by pressing between optical window fixed mount 6 and the housing front end, makes optical window 7 fixations.Between boss integrated disc portions and the cylindrical shell front end by seal with O ring.The material of optical window 7 is a HWB800 infrared transmission visible absorption glass, sees through the infrared light of wavelength greater than 800nm, absorbs visible light.
There is optical device fixed mount 9 optical window 7 inboards, and the light source hole of two symmetries is arranged on the optical device fixed mount 9, and the angle of light source hole center line is 60 °, and led light source 10 is installed in the light source hole.A groove is opened in the center of optical device fixed mount 9, and photelectric receiver 11 is installed in the bottom of groove, and the optical axis included angle of photelectric receiver 11 and two light source holes is respectively 30 °.
Measurement and Control System comprises: power supply, control circuit, data acquisition circuit, single-chip microcomputer.Power supply, control circuit, data acquisition circuit, single-chip microcomputer are fixed on the interior circuit board 13 of cylindrical shell, and corresponding connection is arranged.
One end of circuit board 13 and optics fixed mount 9 are by bolt, and the other end is fixedlyed connected with base 14.Light source 10 all is connected with control circuit with photelectric receiver 11, and the pin of light source 10 and photelectric receiver 11 is welded on respectively on the circuit board 13.The underwater electrical connector 15 that data acquisition circuit connects on the seal casinghousing rear end base 14 connects.Turbidity transducer can be directly installed on buoy or other measuring tables by the underwater electrical connector 15 of seal casinghousing rear end, and also can arrange in pairs or groups computing machine or palm machine are directly measured.
Claims (6)
1. turbidity transducer, shell is cylindrical, it is characterized in that: shell comprises cylindrical shell (8), optical window fixed mount (6) and base (14), optical window fixed mount (6) is circular, optical window fixed mount (6) is by being threaded and being fastened on cylindrical shell (8) the front end outside, and base (14) is encapsulated in the rear end of cylindrical shell (8); Cylindrical shell has optical measuring system and Measurement and Control System in (8), optical measuring system comprises light source (10), photelectric receiver (11) and optical window (7), Measurement and Control System comprises power supply, control circuit, data acquisition circuit, single-chip microcomputer, and power supply, control circuit, data acquisition circuit, single-chip microcomputer are fixed on the interior circuit board (13) of cylindrical shell; Optical window (7) is the glass window of boss shape, is arranged on the front end of cylindrical shell 8, and material is an infrared transmission visible absorption glass; There is optical device fixed mount (9) optical window (7) inboard, and the light source hole of two symmetries is arranged on the optical device fixed mount (9), and led light source (10) is installed in the light source hole, and photelectric receiver (11) is equipped with in the center of optical device fixed mount (9).
2. turbidity transducer according to claim 1 is characterized in that, between cylindrical shell (8) and the base (14) by being threaded.
3. turbidity transducer according to claim 1 is characterized in that, an end of circuit board (13) and optics fixed mount (9) are by bolt, and the other end is fixedlyed connected with base (14).
4. turbidity transducer according to claim 1, it is characterized in that, the boss projection of optical window (7) is stretched in cylindrical shell (8) front end circular uncovered, and the front end face of optical window boss projection front end face and cylindrical shell (8) is in the same plane.
5. turbidity transducer according to claim 4 is characterized in that, the material of optical window (7) is a HWB800 infrared transmission visible absorption glass, sees through the infrared light of wavelength greater than 800nm, absorbs visible light.
6. turbidity transducer according to claim 1, it is characterized in that, a groove is opened in the center of optical device fixed mount (9), and photelectric receiver (11) is installed in the bottom of groove, and photelectric receiver (11) is respectively 30 ° with the optical axis included angle of two light source holes that led light source (10) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202208367U CN201497703U (en) | 2009-09-23 | 2009-09-23 | Turbidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202208367U CN201497703U (en) | 2009-09-23 | 2009-09-23 | Turbidity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497703U true CN201497703U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202208367U Expired - Fee Related CN201497703U (en) | 2009-09-23 | 2009-09-23 | Turbidity sensor |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435555A (en) * | 2011-09-20 | 2012-05-02 | 青岛农业大学 | Multispectral water quality analyzer |
| CN102636432A (en) * | 2011-02-09 | 2012-08-15 | Abb技术股份有限公司 | Optical sensor element and optical sample analysing apparatus |
| CN103048250A (en) * | 2011-10-17 | 2013-04-17 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method for recognizing and/or assessment of device and/or process related disturbances in a measurement signal |
| CN103403532A (en) * | 2010-12-23 | 2013-11-20 | 艾克斯波特西溶液公司 | Photo-coupled data acquisition system and method |
| CN105960585A (en) * | 2014-03-17 | 2016-09-21 | 恩特葛瑞斯-捷特隆解决方案公司 | Disposable liquid chemical sensor system |
| CN106061046A (en) * | 2016-08-15 | 2016-10-26 | 长江勘测规划设计研究有限责任公司 | Underwater illumination lamp based on transmission turbidity measurement principle, and light adjustment method for underwater illumination lamp |
| CN106769726A (en) * | 2016-12-26 | 2017-05-31 | 东莞市海川博通信息科技有限公司 | A kind of turbidity and concentration of suspension sensor |
| CN106770105A (en) * | 2016-12-07 | 2017-05-31 | 山东省科学院海洋仪器仪表研究所 | A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water |
| CN109358025A (en) * | 2018-11-06 | 2019-02-19 | 苏州奥特福环境科技有限公司 | One kind being based on irreflexive sludge detection device |
| CN109557032A (en) * | 2019-01-21 | 2019-04-02 | 杭州陆恒生物科技有限公司 | Turbidity meter |
| CN110726698A (en) * | 2019-11-28 | 2020-01-24 | 浙江农林大学 | Turbidity monitoring method for urban river ecological intelligent monitoring parent station |
| CN112033902A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof and pressure-resistant optical sensor |
| CN112461815A (en) * | 2019-09-09 | 2021-03-09 | 昆山卓丰电子科技有限公司 | Non-dispersive infrared turbidity detection device |
| CN112540050A (en) * | 2020-11-24 | 2021-03-23 | 威海精讯畅通电子科技有限公司 | Water quality detector and detection method thereof |
| CN114152593A (en) * | 2021-12-03 | 2022-03-08 | 浙江大学 | Turbidity meter with bubble content analysis function |
| CN115694648A (en) * | 2022-09-14 | 2023-02-03 | 中国科学院西安光学精密机械研究所 | Transmit-receive integrated quasi-omnidirectional high-pressure-resistant underwater optical communication machine |
| 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 |
| CN108037052B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Infrared optical automatic sand measuring device and method for hydrologic station |
-
2009
- 2009-09-23 CN CN2009202208367U patent/CN201497703U/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403532A (en) * | 2010-12-23 | 2013-11-20 | 艾克斯波特西溶液公司 | Photo-coupled data acquisition system and method |
| CN103403532B (en) * | 2010-12-23 | 2016-05-18 | 艾克斯波特西溶液公司 | Optically-coupled data collecting system and method |
| CN102636432A (en) * | 2011-02-09 | 2012-08-15 | Abb技术股份有限公司 | Optical sensor element and optical sample analysing apparatus |
| CN102435555A (en) * | 2011-09-20 | 2012-05-02 | 青岛农业大学 | Multispectral water quality analyzer |
| CN103048250A (en) * | 2011-10-17 | 2013-04-17 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method for recognizing and/or assessment of device and/or process related disturbances in a measurement signal |
| CN103048250B (en) * | 2011-10-17 | 2016-06-29 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | The method identified and/or assess the interference measuring signal |
| CN105960585A (en) * | 2014-03-17 | 2016-09-21 | 恩特葛瑞斯-捷特隆解决方案公司 | Disposable liquid chemical sensor system |
| CN106061046A (en) * | 2016-08-15 | 2016-10-26 | 长江勘测规划设计研究有限责任公司 | Underwater illumination lamp based on transmission turbidity measurement principle, and light adjustment method for underwater illumination lamp |
| 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 |
| CN106770105A (en) * | 2016-12-07 | 2017-05-31 | 山东省科学院海洋仪器仪表研究所 | A kind of detection means and its optics assembling base of Chlorophyll-a Content in Sea-Water |
| CN106769726A (en) * | 2016-12-26 | 2017-05-31 | 东莞市海川博通信息科技有限公司 | A kind of turbidity and concentration of suspension sensor |
| CN108037052B (en) * | 2017-12-29 | 2024-02-02 | 广州和时通电子科技有限公司 | Infrared optical automatic sand measuring device and method for hydrologic station |
| CN109358025A (en) * | 2018-11-06 | 2019-02-19 | 苏州奥特福环境科技有限公司 | One kind being based on irreflexive sludge detection device |
| CN109557032A (en) * | 2019-01-21 | 2019-04-02 | 杭州陆恒生物科技有限公司 | Turbidity meter |
| CN109557032B (en) * | 2019-01-21 | 2023-11-17 | 浙江陆恒环境科技有限公司 | Turbidity measuring device |
| CN112461815A (en) * | 2019-09-09 | 2021-03-09 | 昆山卓丰电子科技有限公司 | Non-dispersive infrared turbidity detection device |
| CN110726698B (en) * | 2019-11-28 | 2022-02-22 | 浙江农林大学 | Turbidity monitoring method for urban river ecological intelligent monitoring parent station |
| CN110726698A (en) * | 2019-11-28 | 2020-01-24 | 浙江农林大学 | Turbidity monitoring method for urban river ecological intelligent monitoring parent station |
| CN112033902A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof and pressure-resistant optical sensor |
| CN112540050A (en) * | 2020-11-24 | 2021-03-23 | 威海精讯畅通电子科技有限公司 | Water quality detector and detection method thereof |
| CN112540050B (en) * | 2020-11-24 | 2022-12-27 | 威海精讯畅通电子科技有限公司 | Water quality detector and detection method thereof |
| CN114152593A (en) * | 2021-12-03 | 2022-03-08 | 浙江大学 | Turbidity meter with bubble content analysis function |
| CN115694648A (en) * | 2022-09-14 | 2023-02-03 | 中国科学院西安光学精密机械研究所 | Transmit-receive integrated quasi-omnidirectional high-pressure-resistant underwater optical communication machine |
| 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 |
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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: 20100602 Termination date: 20100923 |