CN206540895U - A kind of multi-parameter water quality detection means - Google Patents

A kind of multi-parameter water quality detection means Download PDF

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Publication number
CN206540895U
CN206540895U CN201621190894.6U CN201621190894U CN206540895U CN 206540895 U CN206540895 U CN 206540895U CN 201621190894 U CN201621190894 U CN 201621190894U CN 206540895 U CN206540895 U CN 206540895U
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China
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circuit
water
detects
electrical conductivity
detection
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Expired - Fee Related
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CN201621190894.6U
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Chinese (zh)
Inventor
杨恒玲
贺达江
舒君
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Huaihua University
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Huaihua University
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Abstract

A kind of multi-parameter water quality detection means, detects that circuit, water turbidity detect that circuit, electrical conductivity detect that circuit, signal processing circuit, sound light alarming circuit, display circuit and keyboard are constituted by microcontroller, temperature sensor, pH sensor, dissolved oxygen.Dissolved oxygen detects that circuit determines the content of oxygen in water by detection molecules oxygen through the diffusion rate of film, and water turbidity detects circuit by detecting that infrared laser transmitted light intensity in water detects that circuit detects the electrical conductivity of water using voltammetry to measure water turbidity, electrical conductivity.Microcontroller gathers the signal of each sensor and detection circuit by signal processing circuit, outputs a signal to display circuit and is shown, and send sound light alarming circuit by process signal, and water quality abnormal conditions are alarmed.The utility model is easy to use, and many kinds of parameters in water quality can be detected quick, in real time, Realtime Alerts can be carried out extremely to water quality, has good act on to the safety of people's daily water consumption and domestic water.

Description

A kind of multi-parameter water quality detection means
Technical field
The utility model is related to a kind of automatic detection device, specially intelligentized multi-parameter water quality detection means.
Background technology
With the high speed development of social economy, urbanization, the acceleration of process of industrialization cause city domestic sewage and industry Waste water is largely discharged into rivers, lake and reservoir, and the problem of causing the severe contamination of surface water and groundwater, water pollution is increasingly dashed forward Go out, the daily water consumption and domestic water of people all suffer from serious threat and challenge.The parameter of reflection Water quality has a lot, Such as water temperature, pH, turbidity, dissolved oxygen, electrical conductivity, and water quality detection method is taken by the water sample fetched from earth's surface for a long time To laboratory, each parameter of water quality is individually determined using conventional instrument, this water quality detection mode is in the presence of time-consuming, equipment is thrown Money is big, not many shortcomings such as Portable belt, complex operation, and the auxiliary equipment relied on is more and testing expense height etc., is not suitable for popularization Use.
Utility model content
The purpose of this utility model is to provide a kind of multi-parameter water quality detection means.The device has to be examined quickly, in real time The many kinds of parameters surveyed in water quality, can carry out the functions such as Realtime Alerts extremely to water quality.
The utility model proposes multi-parameter water quality detection means by microcontroller, temperature sensor, pH value sensor, dissolving Oxygen detection circuit, water turbidity detection circuit, electrical conductivity detection circuit, signal processing circuit, sound light alarming circuit, display circuit With keyboard composition;Temperature sensor, pH value sensor, dissolved oxygen detection circuit, water turbidity detection circuit, electrical conductivity detection electricity Road is connected with signal processing circuit;Dissolved oxygen detects that circuit is determined in water by detection molecules oxygen through the diffusion rate of film The content of dissolved oxygen, water turbidity detects circuit by detecting that infrared laser transmitted light intensity in water measures water turbidity, electricity Conductance detection circuit detects the electrical conductivity of water using voltammetry;Signal processing circuit by temperature sensor, pH value sensor, dissolving The analog signal of oxygen detection circuit, water turbidity detection circuit and electrical conductivity detection circuit is amplified, filters and carried out mould Number conversion;Microcontroller detects circuit, water quality by signal processing circuit collecting temperature sensor, pH value sensor, dissolved oxygen Turbidity measurement circuit, electrical conductivity detect the signal of circuit, and the signal output of collection is shown to display circuit, and will processing Signal send sound light alarming circuit, and water quality abnormal conditions are alarmed.
Microprocessor control dissolved oxygen detection circuit gives dissolved oxygen electrode hyper polarization voltage, and oxygen is expanded by breathable films Dissipate, negative electrode release electronics, anode receives electronics, produces electric current.Due to through the oxygen in the oxygen diffusion rates and water of film Concentration is directly proportional, and the electric current that electrode is produced is directly proportional with through the oxygen diffusion rates of film, thus the electric current that produces of electrode and The concentration of water oxygen is directly proportional.Interelectrode electric current amplifies through signal processing circuit, filter and analog-to-digital conversion after send microcontroller Device, completes the detection of water oxygen concentration after microcontroller demarcation processing.
The infrared transmitting tube of microprocessor control water turbidity detection circuit emits beam, and is passed through water body, while Same direction is with photosensitive resistance measurement transmitted light intensity.When water turbidity changes, transmitted light intensity, which is followed, to change, corresponding Photo resistance is also different therewith.Magnitude of voltage in photo resistance is by signal processing circuit amplification, filtering and analog-to-digital conversion After send microcontroller, the detection of water turbidity is completed after microcontroller demarcation processing.
Microprocessor control electrical conductivity detects that circuit applies voltage to two electrodes in tested water quality are put into, and then detects two Interelectrode electric current, two interelectrode electric currents amplify through signal processing circuit, filter and analog-to-digital conversion after send microcontroller, micro-control The detection of the electrical conductivity in tested water quality is completed after device demarcation processing processed, and according to the real-time water temperature for reading temperature sensor, profit Temperature-compensating is carried out to the electrical conductivity being tested in water quality with backoff algorithm.
Microcontroller is tested temperature, pH, turbidity, dissolved oxygen, the electrical conductivity reference value of water quality by keyboard to set up.And will be real When collecting temperature, pH, turbidity, dissolved oxygen, conductivity signal be shown on display circuit.If collection water quality signal exceeds in real time Reference range, microcontroller braking sound light alarming circuit is alarmed.
The utility model is easy to use, and cost is relatively low, and many kinds of parameters in water quality can be detected quick, in real time, can be to water Matter carries out Realtime Alerts extremely, has good effect to the safety of people's daily water consumption and domestic water, should with good Use prospect.
Brief description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Embodiment
As shown in Figure 1:Multi-parameter water quality detection means is by microcontroller 1, temperature sensor 2, pH value sensor 3, dissolving It is oxygen detection circuit 4, water turbidity detection circuit 5, electrical conductivity detection circuit 6, signal processing circuit 7, sound light alarming circuit 8, aobvious Show that circuit 9 and keyboard 10 are constituted;Temperature sensor 2, the sensor of pH value 3, dissolved oxygen detection circuit 4, water turbidity detection circuit 5th, electrical conductivity detection circuit 6 is connected with signal processing circuit 7;Dissolved oxygen detects circuit 4 by detection molecules oxygen through film Diffusion rate determines the content of oxygen in water, and water turbidity detects circuit 5 by detecting infrared laser transmitted light in water It is strong that the electrical conductivity of water is detected using voltammetry to measure water turbidity, electrical conductivity detection circuit 6;Signal processing circuit 7 is by temperature Sensor 2, pH value sensor 3, dissolved oxygen detection circuit 4, water turbidity detection circuit 5 and electrical conductivity detect the simulation of circuit 6 Signal is amplified, filters and carried out analog-to-digital conversion;Microcontroller 1 by the collecting temperature sensor 2 of signal processing circuit 7, PH value sensor 3, dissolved oxygen detection circuit 4, water turbidity detection circuit 5 and electrical conductivity detect the signal of circuit 6, by collection Signal output is shown to display circuit 9, and send sound light alarming circuit 8 by process signal, and water quality abnormal conditions are reported It is alert.
The control dissolved oxygen detection circuit 4 of microcontroller 1 gives dissolved oxygen electrode hyper polarization voltage, and oxygen is expanded by breathable films Dissipate, negative electrode release electronics, anode receives electronics, produces electric current.Due to through the oxygen in the oxygen diffusion rates and water of film Concentration is directly proportional, and the electric current that electrode is produced is directly proportional with through the oxygen diffusion rates of film, thus the electric current that produces of electrode and The concentration of water oxygen is directly proportional.Interelectrode electric current amplifies through signal processing circuit 7, filter and analog-to-digital conversion after send microcontroller Device 1, completes the detection of water oxygen concentration after the demarcation of microcontroller 1 processing.
The infrared transmitting tube of the control water turbidity detection circuit 5 of microcontroller 1 emits beam, and infrared ray passes through water body, together When in same direction with photosensitive resistance measurement transmitted light intensity.When water turbidity changes, transmitted light intensity, which is followed, to change, right The photo resistance answered is also different therewith.Magnitude of voltage in photo resistance is by the amplification of the circuit of signal transacting 7, filtering and modulus Microcontroller 1 is sent after conversion, the detection of water turbidity is completed after the demarcation of microcontroller 1 processing.
The control electrical conductivity of microcontroller 1 detects that circuit 6 applies voltage to two electrodes in tested water quality are put into, and then detects Two interelectrode electric currents, two interelectrode electric currents amplify through signal processing circuit 7, filter and analog-to-digital conversion after send microcontroller 1, The detection of the electrical conductivity in tested water quality, and the Real-time Water read according to temperature sensor 2 are completed after the demarcation of microcontroller 1 processing Temperature, temperature-compensating is carried out using backoff algorithm to the electrical conductivity being tested in water quality.
Microcontroller 1 sets temperature, pH, turbidity, dissolved oxygen, the electrical conductivity reference value of tested water quality by keyboard 10.And The signals such as real-time collecting temperature, pH, turbidity, dissolved oxygen, electrical conductivity are included on display circuit 9.If gathering water quality in real time Signal exceeds reference range, and the braking sound light alarming circuit 8 of microcontroller 1 is alarmed.

Claims (1)

1. a kind of multi-parameter water quality detection means, it is characterised in that:By microcontroller, temperature sensor, pH value sensor, dissolving Oxygen detection circuit, water turbidity detection circuit, electrical conductivity detection circuit, signal processing circuit, sound light alarming circuit, display circuit With keyboard composition;Temperature sensor, pH value sensor, dissolved oxygen detection circuit, water turbidity detection circuit, electrical conductivity detection electricity Road is connected with signal processing circuit;Dissolved oxygen detects that circuit is determined in water by detection molecules oxygen through the diffusion rate of film The content of dissolved oxygen, water turbidity detects circuit by detecting that infrared laser transmitted light intensity in water measures water turbidity, electricity Conductance detection circuit detects the electrical conductivity of water using voltammetry;Signal processing circuit by temperature sensor, pH value sensor, dissolving The analog signal of oxygen detection circuit, water turbidity detection circuit and electrical conductivity detection circuit is amplified, filtered and modulus turn Change;Microcontroller detects circuit, water turbidity by signal processing circuit collecting temperature sensor, pH value sensor, dissolved oxygen Detect that circuit, electrical conductivity detect the signal of circuit, the signal output of collection is shown to display circuit, and by process signal Sound light alarming circuit is sent, water quality abnormal conditions are alarmed.
CN201621190894.6U 2016-11-05 2016-11-05 A kind of multi-parameter water quality detection means Expired - Fee Related CN206540895U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108131136A (en) * 2018-01-31 2018-06-08 中石化石油工程技术服务有限公司 The integrated detection probe of water injection well in oil fields turbidity conductivity
CN109724920A (en) * 2019-01-08 2019-05-07 广东万家乐燃气具有限公司 A kind of electric heater with water quality detecting function
CN111122514A (en) * 2018-10-31 2020-05-08 国网河南省电力公司南阳供电公司 Direct-reading laser salt density and ash density testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108131136A (en) * 2018-01-31 2018-06-08 中石化石油工程技术服务有限公司 The integrated detection probe of water injection well in oil fields turbidity conductivity
CN111122514A (en) * 2018-10-31 2020-05-08 国网河南省电力公司南阳供电公司 Direct-reading laser salt density and ash density testing device
CN109724920A (en) * 2019-01-08 2019-05-07 广东万家乐燃气具有限公司 A kind of electric heater with water quality detecting function

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Granted publication date: 20171003

Termination date: 20181105