CN110887945A - Multi-parameter water quality sensor - Google Patents
Multi-parameter water quality sensor Download PDFInfo
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- CN110887945A CN110887945A CN201911290580.1A CN201911290580A CN110887945A CN 110887945 A CN110887945 A CN 110887945A CN 201911290580 A CN201911290580 A CN 201911290580A CN 110887945 A CN110887945 A CN 110887945A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
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Abstract
The invention discloses a multi-parameter water quality sensor, which belongs to the technical field of water quality sensors and comprises a cylindrical outer pipe, wherein a plurality of water quality detection sensors are arranged in the outer pipe, the water quality detection sensors are fixed in the outer pipe through sensor fixing pieces, the signal output ends of the water quality detection sensors are arranged on the same side, one end of the outer pipe is provided with a connecting port, the connecting port is provided with a transmission cable extending outwards, and the transmission cable is used for transmitting output signals of the water quality detection sensors; the other end of the outer tube is detachably connected with a protective cover, and one end of the side wall of the outer tube, which is close to the protective cover, is provided with a circulation hole penetrating through the side wall of the outer tube. The invention has the advantages that a plurality of water quality detection sensors are integrated, the detection of various water quality parameters of the water body can be realized simultaneously, the integration level is high, and the volume is small.
Description
Technical Field
The invention relates to the technical field of water quality sensors, in particular to a multi-parameter water quality sensor.
Background
The water quality sensor is used for detecting parameters such as oxygen content, pH value, salinity, dissolved oxygen, conductivity and the like in water, is mainly applied to the fields of riverways, oceans, aquaculture, environmental protection and the like, generally, one water quality sensor can only detect one water quality parameter, and when various parameters of water quality need to be detected, various different water quality sensors need to be configured, so that the detection is complicated, and time and labor are wasted.
In the market, various discrete sensors are integrated together to form a device for monitoring water quality, and the method has the following problems: 1. the discrete sensors are used, so that the assembly is troublesome, time and labor are wasted, more leads are needed, and various sensor protocols need to be debugged respectively; 2. the volume is large, the diameter exceeds 90mm, the weight is heavy, the process is complex, the aviation connectors are mostly adopted for butt joint, and the waterproofness is not high.
Disclosure of Invention
The invention provides a multi-parameter water quality sensor which has the advantages that a plurality of water quality detection sensors are integrated, the detection of various water quality parameters of a water body can be realized simultaneously, the integration level is high, and the volume is small.
The invention aims to realize the technical scheme that the multi-parameter water quality sensor comprises a cylindrical outer pipe, wherein a plurality of water quality detection sensors are arranged in the outer pipe, the water quality detection sensors are fixed in the outer pipe through sensor fixing pieces, the signal output ends of the water quality detection sensors are arranged on the same side, one end of the outer pipe is provided with a connecting port, the connecting port is provided with a transmission cable extending outwards, and the transmission cable is used for transmitting output signals of the water quality detection sensors; the other end of the outer tube is detachably connected with a protective cover, and one end of the side wall of the outer tube, which is close to the protective cover, is provided with a circulation hole penetrating through the side wall of the outer tube.
Through above-mentioned technical scheme, a plurality of water quality testing sensor integration are in the outer tube, and the output signal of a plurality of water quality testing sensor is followed the transmission cable output to realize simultaneously detecting the multi-parameter of water, during the detection, the water that awaits measuring enters into in the outer tube and soaks the water quality testing sensor in the outer tube from the runner hole, and water quality testing sensor detects the water quality parameter and transmits to the host computer through the transmission cable.
The invention is further arranged that the water quality detection sensor is in threaded connection with the sensor fixing piece.
Through the technical scheme, the water quality detection sensor is conveniently connected with the sensor fixing piece, and meanwhile, the water quality detection sensor is also conveniently replaced.
The invention is further provided that a first waterproof ring and a second waterproof ring are arranged on the thread connecting the water quality detection sensor and the sensor fixing piece.
Through above-mentioned technical scheme, waterproof circle of first waterproof circle and second is used for waterproof to avoid the water in the outer tube to enter into the electric property part of water quality testing sensor, improve the operational reliability of water quality testing sensor.
The invention is further provided that the end part of the water quality detection sensor connected with the sensor fixing piece is provided with an axial waterproof ring.
Through above-mentioned technical scheme, water quality testing sensor extrudees the waterproof circle of axial when being connected to on the sensor mounting, and the waterproof circle of axial further improves water-proof effects.
The invention is further arranged in that the transmission cable is connected with a butt joint, and the butt joint is in threaded connection with the connecting port.
Through above-mentioned technical scheme, the transmission cable passes through the butt joint and is connected with the connector, and it is convenient to be connected, and the butt joint is convenient to be dismantled from the connector.
The invention is further arranged in such a way that a single chip microcomputer is arranged in the outer pipe between the connecting port and the sensor fixing piece, the signal output end of the water quality detection sensor is connected with the single chip microcomputer, the transmission cable is connected with the single chip microcomputer, and the single chip microcomputer is used for outputting the output signal of the water quality detection sensor to the transmission cable.
Through above-mentioned technical scheme, the output signal transmission of a plurality of water quality testing sensor to the singlechip, convert signal output from the transmission cable all the way through the singlechip, reduced the circuit.
The invention is further provided that four circulation holes are uniformly arranged along the circumferential direction of the outer tube.
Through the technical scheme, the four circulation holes are arranged to facilitate the exchange of the water bodies inside and outside the outer pipe, so that the detection result is more accurate.
The invention is further provided that the water quality detection sensors are provided with four or six.
The invention is further set that the water quality detection sensor is different combinations of a residual chlorine sensor, a conductivity sensor, a PH sensor, an ORP sensor, an ammonia nitrogen sensor and a turbidity sensor.
In conclusion, the beneficial effects of the invention are as follows:
1. the multi-parameter detection of the water body is realized by integrating a plurality of water quality detection sensors into the outer pipe, so that the detection efficiency is improved;
2. the connecting end of the water quality detection sensor and the sensor fixing piece is provided with a first waterproof ring, a second waterproof ring and an axial waterproof ring to realize multiple waterproof functions, and the waterproof performance is good;
3. output signals of the water quality detection sensors are converged into a lead wire through the single chip microcomputer, and wiring is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a partial view showing the positions of the first waterproof ring, the second waterproof ring and the axial waterproof ring in this embodiment.
In the figure, 1, a protective cover; 2. a flow-through hole; 3. an outer tube; 4. a water quality detection sensor; 5. a sensor mount; 7. a single chip microcomputer; 8. a rear end cap; 9. a butt joint; 10. a transmission cable; 11. a first waterproof ring; 12. a second waterproof ring; 13. an axial waterproof ring.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example (b): referring to fig. 1-2, a multi-parameter water quality sensor comprises a cylindrical outer tube 3, a plurality of water quality detection sensors 4 are arranged in the outer tube 3, the plurality of water quality detection sensors 4 are fixed in the outer tube 3 through sensor fixing pieces 5, signal output ends of the plurality of water quality detection sensors 4 are arranged on the same side, one end of the outer tube 3 is provided with a connecting port, the connecting port is provided with a transmission cable 10 extending outwards, and the transmission cable 10 is used for transmitting output signals of the water quality detection sensors 4; the other end of outer tube 3 can be dismantled and be connected with visor 1, and the one end that the outer tube 3 lateral wall is close to visor 1 is equipped with the circulation hole 2 that runs through the outer tube 3 lateral wall. A plurality of water quality testing sensors 4 are integrated in outer tube 3, and the output signal of a plurality of water quality testing sensors 4 is followed transmission cable 10 output to the realization is simultaneously to the multi-parameter detection of water, during the detection, the water that awaits measuring enters into outer tube 3 and soaks water quality testing sensor 4 in the outer tube 3 from runner hole 2, and water quality testing sensor 4 detects the water quality parameter and transmits to the host computer through transmission cable 10.
The right side end of outer tube 3 is equipped with rear end cap 8, and 8 threaded connection of rear end cap are on outer tube 3, and the connector setting is in the middle part position of rear end cap 8.
Water quality testing sensor 4 threaded connection is on sensor mounting 5, and water quality testing sensor 4 is conveniently connected with sensor mounting 5, also conveniently changes water quality testing sensor 4 simultaneously. Be equipped with first waterproof circle 11 and the waterproof circle 12 of second on the screw thread that water quality testing sensor 4 and sensor mounting 5 are connected, first waterproof circle 11 and the waterproof circle 12 of second are used for waterproofly to avoid the water in the outer tube 3 to enter into water quality testing sensor 4's electric property part, improve water quality testing sensor 4's operational reliability. The tip that water quality testing sensor 4 and sensor mounting 5 are connected is equipped with the waterproof circle of axial 13, and the waterproof circle of extrusion axial 13 when water quality testing sensor 4 is connected to on the sensor mounting 5, and the waterproof circle of axial 13 further improves water-proof effects. The first waterproof ring 11, the second waterproof ring 12 and the axial waterproof ring 13 are all made of silica gel.
The transmission cable 10 is connected with the butt joint 9, the butt joint 9 is in threaded connection with the connector, the transmission cable 10 is connected with the connector through the butt joint 9 conveniently, and the butt joint 9 is convenient to detach from the connector.
The circulation holes 2 are uniformly arranged in four along the circumferential direction of the outer tube 3, and the four circulation holes 2 are arranged to facilitate the exchange of water bodies inside and outside the outer tube 3, so that the detection result is more accurate. The water quality detection sensor 4 is provided with four or six, the water quality detection sensor 4 is different combinations of a residual chlorine sensor, a conductivity sensor, a PH sensor, an ORP sensor, an ammonia nitrogen sensor and a turbidity sensor, and the end part of the water quality sensor is provided with threads for being connected to the sensor fixing part 5.
In other embodiments of the invention, a single chip microcomputer 7 is arranged in the outer tube 3 between the connecting port and the sensor fixing member 5, the signal output end of the water quality detection sensor 4 is connected with the single chip microcomputer 7, the transmission cable 10 is connected with the single chip microcomputer 7, and the single chip microcomputer 7 is used for outputting the output signal of the water quality detection sensor 4 to the transmission cable 10. The output signals of the water quality detection sensors 4 are transmitted to the single chip microcomputer 7, and are converted into one path of signals through the single chip microcomputer 7 to be output from the transmission cable 10, so that the number of lines is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The multi-parameter water quality sensor is characterized by comprising a cylindrical outer pipe (3), wherein a plurality of water quality detection sensors (4) are arranged in the outer pipe (3), the water quality detection sensors (4) are fixed in the outer pipe (3) through sensor fixing pieces (5), signal output ends of the water quality detection sensors (4) are arranged on the same side, one end of the outer pipe (3) is provided with a connecting port, the connecting port is provided with a transmission cable (10) extending outwards, and the transmission cable (10) is used for transmitting output signals of the water quality detection sensors (4); the other end of the outer tube (3) is detachably connected with a protective cover (1), and one end of the side wall of the outer tube (3) close to the protective cover (1) is provided with a circulation hole (2) penetrating through the side wall of the outer tube (3).
2. A multiparameter water quality sensor according to claim 1, wherein the water quality detecting sensor (4) is screwed to the sensor fixing member (5).
3. The multiparameter water quality sensor according to claim 2, wherein a first waterproof ring (11) and a second waterproof ring (12) are provided on a screw thread connecting the water quality detection sensor (4) and the sensor fixing member (5).
4. A multiparameter water quality sensor according to claim 2 or 3, wherein an axial waterproof ring (13) is provided at the end of the water quality detection sensor (4) connected to the sensor fixing member (5).
5. A multiparameter water quality sensor according to claim 1, wherein the transmission cable (10) is connected to a docking head (9), and the docking head (9) is in threaded connection with a connection port.
6. The multiparameter water quality sensor according to claim 1 or 5, wherein a single chip microcomputer (7) is arranged at a position between the connecting port and the sensor fixing member (5) in the outer tube (3), a signal output end of the water quality detection sensor (4) is connected with the single chip microcomputer (7), the transmission cable (10) is connected with the single chip microcomputer (7), and the single chip microcomputer (7) is used for outputting an output signal of the water quality detection sensor (4) to the transmission cable (10).
7. A multiparameter water quality sensor according to claim 1, wherein four flow holes (2) are uniformly provided along the circumferential direction of the outer tube (3).
8. A multiparameter water quality sensor according to claim 1, wherein there are four or six water quality detection sensors (4).
9. Multiparameter water quality sensor according to claim 8, wherein the water quality detection sensor (4) is a different combination of a residual chlorine sensor, a conductivity sensor, a pH sensor, an ORP sensor, an ammonia nitrogen sensor, and a turbidity sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290580.1A CN110887945A (en) | 2019-12-16 | 2019-12-16 | Multi-parameter water quality sensor |
| PCT/CN2020/100758 WO2021120604A1 (en) | 2019-12-16 | 2020-07-08 | Multi-parameter water quality sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290580.1A CN110887945A (en) | 2019-12-16 | 2019-12-16 | Multi-parameter water quality sensor |
Publications (1)
| Publication Number | Publication Date |
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| CN110887945A true CN110887945A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911290580.1A Pending CN110887945A (en) | 2019-12-16 | 2019-12-16 | Multi-parameter water quality sensor |
Country Status (2)
| Country | Link |
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| CN (1) | CN110887945A (en) |
| WO (1) | WO2021120604A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112034122A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof type water quality sensor |
| WO2021120604A1 (en) * | 2019-12-16 | 2021-06-24 | 南京奇崛电子科技有限公司 | Multi-parameter water quality sensor |
| CN113917103A (en) * | 2021-10-15 | 2022-01-11 | 贵州师范学院 | Multi-water-quality parameter detection device capable of automatically adjusting depth |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813688A (en) * | 2010-04-29 | 2010-08-25 | 扬州特安科技有限公司 | Multiparameter water quality analyzer |
| CN102607650A (en) * | 2012-04-01 | 2012-07-25 | 郑贵林 | Self-maintenance multi-parameter water quality monitor |
| CN203148923U (en) * | 2013-03-14 | 2013-08-21 | 中国水产科学研究院淡水渔业研究中心 | Sensor connection device applied to aquaculture water quality monitoring floating drum |
| CN104237336A (en) * | 2014-09-15 | 2014-12-24 | 江苏大学 | Nitrite sensor |
| CN105823860A (en) * | 2016-04-11 | 2016-08-03 | 南京鱼博士智能科技有限公司 | Special water quality multi-parameter sensor for aquaculture |
| CN205449855U (en) * | 2016-03-16 | 2016-08-10 | 中国地质调查局水文地质环境地质调查中心 | Water quality testing joins digital circuit utmost point sensor more and bears device |
| CN105928560A (en) * | 2016-06-27 | 2016-09-07 | 烟台凯米斯仪器有限公司 | On-line water quality analyzer with multi-parameter sensors |
| CN106645032A (en) * | 2016-09-28 | 2017-05-10 | 深圳市七善科技有限公司 | Multi-parameter water quality electrode adopting fluorescence method |
| CN206892089U (en) * | 2017-06-12 | 2018-01-16 | 江西泓碧环境科技有限公司 | A kind of multi-parameter water quality in-line analyzer based on technology of Internet of things |
| CN208366896U (en) * | 2018-05-15 | 2019-01-11 | 深圳市朗诚科技股份有限公司 | Multi-parameter water quality monitor |
| CN209313406U (en) * | 2018-12-17 | 2019-08-27 | 扬州天宇电器设备有限公司 | Waterproof connector and end |
| US20190310236A1 (en) * | 2014-11-10 | 2019-10-10 | In-Situ, Inc. | Submersible multi-parameter sonde having a high sensor form factor sensor |
| CN209485423U (en) * | 2019-02-20 | 2019-10-11 | 上海晏玛检测科技有限公司 | A kind of wireless temperature, hygrograph |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141351A (en) * | 1987-11-27 | 1989-06-02 | Taisei Corp | Water quality inspecting device |
| US5103179A (en) * | 1990-03-05 | 1992-04-07 | Industrial Chemical Measurement, Inc. | Water analyzer with multiple electrodes |
| CN205270209U (en) * | 2015-10-15 | 2016-06-01 | 烟台凯米斯仪器有限公司 | Online multi -parameter quality of water sensor self - cleaning and calibrating device |
| CN205691171U (en) * | 2016-06-27 | 2016-11-16 | 烟台凯米斯仪器有限公司 | A kind of online multi-parameter sensor Water Test Kits |
| CN209387639U (en) * | 2018-12-26 | 2019-09-13 | 武汉飞流智能技术有限公司 | A kind of water quality monitoring probe and the water intaking sampling apparatus comprising it |
| CN110887945A (en) * | 2019-12-16 | 2020-03-17 | 南京奇崛电子科技有限公司 | Multi-parameter water quality sensor |
-
2019
- 2019-12-16 CN CN201911290580.1A patent/CN110887945A/en active Pending
-
2020
- 2020-07-08 WO PCT/CN2020/100758 patent/WO2021120604A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813688A (en) * | 2010-04-29 | 2010-08-25 | 扬州特安科技有限公司 | Multiparameter water quality analyzer |
| CN102607650A (en) * | 2012-04-01 | 2012-07-25 | 郑贵林 | Self-maintenance multi-parameter water quality monitor |
| CN203148923U (en) * | 2013-03-14 | 2013-08-21 | 中国水产科学研究院淡水渔业研究中心 | Sensor connection device applied to aquaculture water quality monitoring floating drum |
| CN104237336A (en) * | 2014-09-15 | 2014-12-24 | 江苏大学 | Nitrite sensor |
| US20190310236A1 (en) * | 2014-11-10 | 2019-10-10 | In-Situ, Inc. | Submersible multi-parameter sonde having a high sensor form factor sensor |
| CN205449855U (en) * | 2016-03-16 | 2016-08-10 | 中国地质调查局水文地质环境地质调查中心 | Water quality testing joins digital circuit utmost point sensor more and bears device |
| CN105823860A (en) * | 2016-04-11 | 2016-08-03 | 南京鱼博士智能科技有限公司 | Special water quality multi-parameter sensor for aquaculture |
| CN105928560A (en) * | 2016-06-27 | 2016-09-07 | 烟台凯米斯仪器有限公司 | On-line water quality analyzer with multi-parameter sensors |
| CN106645032A (en) * | 2016-09-28 | 2017-05-10 | 深圳市七善科技有限公司 | Multi-parameter water quality electrode adopting fluorescence method |
| CN206892089U (en) * | 2017-06-12 | 2018-01-16 | 江西泓碧环境科技有限公司 | A kind of multi-parameter water quality in-line analyzer based on technology of Internet of things |
| CN208366896U (en) * | 2018-05-15 | 2019-01-11 | 深圳市朗诚科技股份有限公司 | Multi-parameter water quality monitor |
| CN209313406U (en) * | 2018-12-17 | 2019-08-27 | 扬州天宇电器设备有限公司 | Waterproof connector and end |
| CN209485423U (en) * | 2019-02-20 | 2019-10-11 | 上海晏玛检测科技有限公司 | A kind of wireless temperature, hygrograph |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120604A1 (en) * | 2019-12-16 | 2021-06-24 | 南京奇崛电子科技有限公司 | Multi-parameter water quality sensor |
| 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 |
| CN112034122A (en) * | 2020-08-10 | 2020-12-04 | 南京奇崛电子科技有限公司 | Waterproof type water quality sensor |
| WO2022032713A1 (en) * | 2020-08-10 | 2022-02-17 | 南京奇崛电子科技有限公司 | Waterproof and pressure-resistant optical sensor |
| WO2022032710A1 (en) * | 2020-08-10 | 2022-02-17 | 南京奇崛电子科技有限公司 | Waterproof water quanlity sensor |
| CN113917103A (en) * | 2021-10-15 | 2022-01-11 | 贵州师范学院 | Multi-water-quality parameter detection device capable of automatically adjusting depth |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021120604A1 (en) | 2021-06-24 |
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Application publication date: 20200317 |