CN206132118U - Quality of water comprehensive testing appearance - Google Patents
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- CN206132118U CN206132118U CN201621088293.4U CN201621088293U CN206132118U CN 206132118 U CN206132118 U CN 206132118U CN 201621088293 U CN201621088293 U CN 201621088293U CN 206132118 U CN206132118 U CN 206132118U
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Abstract
The utility model provides a quality of water comprehensive testing appearance, including microprocessor, power module and sensor, the sensor includes seven kinds pressure sensor, temperature sensor, PH sensors etc. And microprocessor's input is connected with button module, communication module and channel control module, and the output is connected with display driver circuit and relay drive circuit, the sensing signal of every sensor sends into after the sensor signal processing circuit who corresponds handles respectively on the passageway of channel control module input, channel control module output is connected with microprocessor's an input, communication module is used for receiving host machine's command information and sends sensor detection information to the host computer. This quality of water comprehensive testing appearance can detect multinomial quality of water data simultaneously, the circumstances that the signal was crosstalked can not appear, has improved the measuring accuracy, and simple structure, cost are lower in addition.
Description
Technical field
This utility model is related to water quality inspection technique field, and in particular to a kind of water quality comprehensive detector.
Background technology
Water is important natural resourcess for the survival of mankind, healthy closely bound up with people, but with social industry
Change, the fast development of urbanization, various undressed sanitary sewages, the output of industrial wastewater increase year by year, cause water source
Pollution is day by day serious.Therefore, people improve the attention degree to water pollution control, and water quality detection is that water resource is utilized and protected
Key index.With the development of sewage disposal technology, water quality detection will be occupied in commercial Application and people's daily life
Consequence.
Water quality detection can detect the various index contents of water sample, the content of beary metal in such as drinking water water, if
It is exceeded to be detrimental to health, by the indices for analyzing detection, comprehensive assessment can be carried out to water quality.Traditional detection
Mode is individually detected by various equipment, and detection information is carried out statistical analysiss again then, and detection pattern is single, and
It is complex structure, relatively costly；More testing equipment has been carried out integrated by existing detector, and such as CN203376309U is public
A kind of multi-parameter water quality detector is opened, the various indexs of water quality can have been detected simultaneously, but during various Indexs measures,
It is possible that, there is the relatively low situation of measurement data degree of accuracy in the crosstalk of signal.
Utility model content
For defect of the prior art, this utility model provides a kind of water quality comprehensive detector, can detect water simultaneously
Many item datas of matter, are not in the situation of signal cross-talk, improve detection degree of accuracy, and simple structure, cost are relatively low.
A kind of water quality comprehensive detector, including microprocessor, the supply module powered for the water quality comprehensive detector and
For the sensor of water quality detection, sensor includes combination PH electrode sensor, chlorine residue polarogram type electrode sensor, compound ORP
Electrode sensor, dissolved oxygen polarogram type electrode sensor, pressure transducer, temperature sensor and conductivity electrode sensor；
The input of the microprocessor is connected with key-press module, communication module and channel control module, and outfan is connected with display and drives
Circuit and relay drive circuit；The induced signal difference of each sensor is Jing after the process of corresponding sensor signal processing circuit
Send on a passage of channel control module input；Sensor signal processing circuit includes combination PH electrode sensor signal
Process circuit, chlorine residue polarogram type electrode sensor signal processing circuit, compound ORP electrode sensor signal processing circuits, dissolving
Oxygen polarogram type electrode sensor signal processing circuit, pressure sensor signal process circuit, temperature sensor signal process circuit
And conductivity electrode sensor signal processing circuit；The outfan of channel control module is connected with an input of microprocessor
Connect；Communication module is used to receive the command information of host computer and sensor detection information is sent to host computer；Relay drives
The outfan connection outputting circuit for relay on galvanic electricity road, for realizing the output control of the water quality comprehensive detector；Show and drive
The outfan connection display screen of circuit, for showing sensor detection information.
Multiple water quality detection sensors are integrated by the water quality comprehensive detector that this utility model is provided, by multifunctional examining
Survey is integrated into the water quality comprehensive detector, simplifies water quality detection process, can detect many item datas of water quality simultaneously, by arranging
Channel control module, realizes the function of multiselect one, can simultaneously detection information when be not in signal cross-talk situation, improve water
The degree of accuracy of quality detection, while being provided with communication module can be uploaded directly into host computer by detection information, is easy to the system of information
Meter storage.
Alternatively, in water quality comprehensive detector described above, combination PH electrode sensor signal processing circuit is provided with
First operational amplifier；The induced signal Jing resistance R67 of PH electrode sensors sends into the normal phase input end of the first operational amplifier,
One positive current source+1.235A Jing resistance R74 are sent into the inverting input of first operational amplifier, the first fortune by current signal
Signal after the process of combination PH electrode sensor signal processing circuit is sent into described leading to Jing resistance R85 by the outfan for calculating amplifier
The first passage of road control module, is connected to electric capacity C51, the first fortune between the inverting input and outfan of the first operational amplifier
Resistance R78 is also associated between the inverting input and the first passage of channel control module of calculating amplifier.
This water quality comprehensive detector detects the pH value of water quality from combination PH electrode sensor, is sensed by combination PH electrode
The pH value information transfer for detecting on microprocessor, can be transferred to host computer by communication module, together by device signal processing circuit
When, it is also possible to detection information is shown by display screen.
Alternatively, in water quality comprehensive detector described above, chlorine residue polarogram type electrode sensor signal processing circuit sets
It is equipped with the second operational amplifier, the 3rd operational amplifier and four-operational amplifier；One positive voltage source+1.235V Jing resistance
R62 is sent into the normal phase input end of the second operational amplifier, the inverting input Jing resistance of the second operational amplifier by voltage signal
R82, electric capacity C64 are grounded, and the voltage signal of the outfan output of the second operational amplifier sends into chlorine residue polarogram type Jing after resistance R88
The anode of electrode sensor, between the anode of the inverting input and chlorine residue polarogram type electrode sensor of the second operational amplifier also
Resistance R82 is connected with, between the inverting input and outfan of the second operational amplifier, electric capacity C53 is connected with；One positive voltage source+
1.235V Jing resistance R161 are sent into the normal phase input end of the 3rd operational amplifier, chlorine residue polarogram type electrode sensor by voltage signal
The induced signal Jing resistance R151 of negative electrode sends into the inverting input of the 3rd operational amplifier, the 3rd operational amplifier output terminal
Output voltage signal Jing resistance R159 sends into the normal phase input end of four-operational amplifier, the anti-phase input of the 3rd operational amplifier
Electric capacity C90, the moon of the outfan and chlorine residue polarogram type electrode sensor of the 3rd operational amplifier are connected between end and outfan
Resistance R149 is further connected between pole；The inverting input Jing resistance R157 ground connection of four-operational amplifier, four-operational amplifier
Outfan Jing resistance R150 by chlorine residue polarogram type electrode sensor signal processing circuit process after signal send into passage control
The second channel of module, is connected with electric capacity C91 between the inverting input and outfan of four-operational amplifier, the 4th computing is put
Resistance R152 is also associated between the inverting input of device and the second channel of the channel control module greatly.
Alternatively, in water quality comprehensive detector described above, compound ORP electrode sensor signal processing circuits are provided with
5th operational amplifier and the 6th operational amplifier；The induced signal Jing resistance R112 of compound ORP electrode sensors sends into the 5th
Current signal is sent into the 5th operation amplifier by the normal phase input end of operational amplifier, a positive current source+2.470A Jing resistance R107
The inverting input of device, voltage signal Jing resistance R92, the resistance R113 of the 5th operational amplifier output terminal send into the 6th computing to be put
Big device normal phase input end, is connected with electric capacity C58 between the inverting input and outfan of the 5th operational amplifier；6th computing is put
Signal after the process of compound ORP electrode sensors signal processing circuit is sent into passage control Jing resistance R93 by the outfan of big device
It is also associated between the inverting input of the third channel of module, the third channel of channel control module and the 6th operational amplifier
Resistance R101.
Alternatively, in water quality comprehensive detector described above, dissolved oxygen polarogram type electrode sensor signal processing circuit
It is provided with the 7th operational amplifier, the 8th operational amplifier and the 9th operational amplifier；One positive voltage source+1.235V Jing resistance
R63 is sent into the normal phase input end of the 7th operational amplifier, the inverting input Jing of the 7th operational amplifier by voltage signal
Resistance R83, electric capacity C47 are grounded, and the output voltage signal Jing resistance R89 of the 7th operational amplifier output terminal sends into and connects dissolved oxygen pole
The anode of spectral pattern electrode sensor, is connected with electric capacity C54 between the inverting input and outfan of the 7th operational amplifier, and the 7th
Resistance R83 is also associated between the anode of the inverting input and dissolved oxygen polarogram type electrode sensor of operational amplifier；One just
Voltage source+1.235V Jing resistance R121 are sent into the normal phase input end of the 8th operational amplifier, dissolved oxygen polarogram type by voltage signal
The induced signal Jing resistance R138 of electrode sensor negative electrode sends into the inverting input of the 8th operational amplifier, the 8th operation amplifier
The output voltage signal Jing resistance R129 of device outfan sends into the 9th operational amplifier normal phase input end, the 8th operational amplifier
Electric capacity C84, the outfan and dissolved oxygen polarogram type electrode of the 8th operational amplifier are connected between inverting input and outfan
Resistance R145 is also associated between the negative electrode of sensor；9th operational amplifier inverting input Jing resistance R137 is grounded, and the 9th
Signal after the process of dissolved oxygen polarogram type electrode sensor signal processing circuit is sent by operational amplifier output terminal Jing resistance R146
Enter the fourth lane of channel control module；Electric capacity C85 is connected between the inverting input and outfan of the 9th operational amplifier,
Resistance R139 is also associated between the inverting input and the fourth lane of channel control module of the 9th operational amplifier.
Alternatively, in water quality comprehensive detector described above, pressure sensor signal process circuit is provided with the tenth fortune
Calculate amplifier；The induced signal Jing resistance R61 of pressure transducer, diode D23, resistance R65 send into the tenth operational amplifier
Normal phase input end, the inverting input Jing resistance R76 ground connection of the tenth operational amplifier, the outfan Jing of the tenth operational amplifier are electric
Resistance R87 is sent into the clematis stem road of channel control module by the signal after pressure sensor signal processing circuit processes；Ten computings are put
Electric capacity C52, the inverting input of ten operational amplifiers and passage control are connected between the inverting input and outfan of big device
Resistance R80 is also associated between the clematis stem road of module.
Pressure transducer in this water quality comprehensive detector selects diffusion silicon pressure sensor, in accurate detection water body
Portion's pressure, is transferred to microprocessor after processed by the signal of telecommunication of detection.
Alternatively, in water quality comprehensive detector described above, microprocessor is singlechip chip STM32F103VET6.
Alternatively, in water quality comprehensive detector described above, display screen is LCD screen, and the resolution of the LCD screen is 128*
64。
Alternatively, in water quality comprehensive detector described above, relay drive circuit includes four relays, respectively with
Microprocessor connects, and realizes the output control to the water quality comprehensive detector.
Remarkable result of the present utility model：A kind of water quality comprehensive detector, including microprocessor, supply module and sensing
Device, sensor include pressure transducer, combination PH electrode sensor, compound ORP electrode sensors, dissolved oxygen polarogram type electrode
Sensor, chlorine residue polarogram type electrode sensor, temperature sensor and conductivity electrode sensor；The input of microprocessor connects
Key-press module, communication module and channel control module are connected to, outfan is connected with display driver circuit and relay drive circuit；
The induced signal difference of each sensor sends into channel control module input Jing after the process of corresponding sensor signal processing circuit
On one passage at end；The outfan of channel control module is connected with an input of microprocessor.The water quality comprehensive detector
By it is multi-functional detection be integrated into the water quality comprehensive detector, simplify water quality detection process, can detect simultaneously water quality temperature,
Pressure, pH value, oxidisability, oxygen dissolved, electric conductivity, contents of residual chlorine, and be not in the situation of signal cross-talk, greatly improve
The degree of accuracy of water quality detection；And overall structure is simple, implementation cost is low.
Description of the drawings
Structural representations of the Fig. 1 for this utility model water quality comprehensive detector；
Fig. 2 is the signal processing of combination PH electrode sensor and compound ORP electrode sensors in this utility model embodiment
Circuit figure；
Fig. 3 is dissolved oxygen polarogram type electrode sensor and chlorine residue polarogram type electrode sensor in this utility model embodiment
Signal processing circuit circuit diagram；
Fig. 4 is the signal processing circuit circuit diagram of temperature sensor in this utility model embodiment；
Fig. 5 is the signal processing circuit circuit of pressure transducer and conductivity electrode sensor in this utility model embodiment
Figure；
Fig. 6 is conductivity electrode sensor and dissolved oxygen polarogram type electrode sensor and remaining in this utility model embodiment
The signal processing circuit circuit diagram of chlorine polarogram type electrode sensor.
Specific embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Technical scheme is clearly illustrated, therefore is intended only as example, and the protection of the present invention can not be limited with this
Scope.
Embodiment：
With reference to Fig. 1, a kind of water quality comprehensive detector, including microprocessor, supply module, pressure transducer, compound PH are electric
Pole sensor, compound ORP electrode sensors, dissolved oxygen polarogram type electrode sensor, chlorine residue polarogram type electrode sensor, temperature are passed
Sensor and conductivity electrode sensor, key-press module, communication module, channel control module, display driver circuit, relay drive
Galvanic electricity road, each sensor signal processing circuit, display screen；Supply module is provided with input protection circuit and output protection circuit,
It is furnished with switch buck chip LM2596S_ADJ, linear voltage stabilization chip between input protection circuit and output protection circuit
LM1117_3.3 and charge pump turnover voltage chip MAX660ESA, for being powered for the water quality comprehensive detector；Button mould
Block, communication module, channel control module are both connected to the input of microprocessor, display driver circuit and relay drive circuit
It is connected to the outfan of microprocessor；The corresponding sensor signal processing circuits of induced signal difference Jing of each sensor are processed
Sent on a passage of the channel control module input afterwards；Sensor signal processing circuit includes that combination PH electrode is sensed
Device signal processing circuit, chlorine residue polarogram type electrode sensor signal processing circuit, compound ORP electrode sensors signal processing electricity
Road, dissolved oxygen polarogram type electrode sensor signal processing circuit, pressure sensor signal process circuit, at temperature sensor signal
Reason circuit and conductivity electrode sensor signal processing circuit；The outfan of channel control module and an input of microprocessor
End connection；The outfan connection display screen of display driver circuit, for showing sensor detection information；Communication module is used to receive
The command information of host computer and sensor detection information is sent to host computer；Relay drive circuit outfan connection after
Electrical equipment output circuit, for realizing the output control of the water quality comprehensive detector；Microprocessor selects singlechip chip
STM32F103VET6。
During enforcement, display screen is typically from the LCD screen that resolution is 128*64, and can individually show a certain parameter
Details；In order to the output preferably to water quality comprehensive detector is controlled, relay drive circuit arranges four relays
Device, is connected on an output pin of single-chip microcomputer STM32F103VET6；Key-press module arranges 4 touch keys and compares conjunction
It is suitable, can be used to arrange the content of display screen, including the configuration of sensor slope value, zero point value, compensating parameter and calibration content
Deng；The detection range of each sensor is, temperature indication range is -40 DEG C～60 DEG C, pressure indication range be 0kPa～
1000kPa, PH indication range be 0～14, ORP indication ranges be -2000mv～2000mv, TDS indication ranges be 0mg/L～
20mg/L, electrical conductivity indication range be 0uS/cm～20mS/cm, dissolved oxygen indication range be 0mg/L～20mg/L or 0%～
100%, chlorine residue indication range is 0mg/L～20mg/L；Communication module is used for the command information for receiving host computer and will sense
Device detection information is sent to host computer, from MAX3485 electrical level transferring chip structures with the single-chip microcomputer of embedded MODBUS_RTU agreements
Into.
Referring to the drawings 2, in implementation process, combination PH electrode sensor signal processing circuit is provided with the first operational amplifier,
The normal phase input end of induced signal Jing resistance R67 first operational amplifiers of feeding of PH electrode sensors, a positive current source+
1.235A Jing resistance R74 are sent into the inverting input of the first operational amplifier, the output of the first operational amplifier by current signal
Hold Jing resistance R85 and lead to first of the signal feeding channel control module after the process of combination PH electrode sensor signal processing circuit
Road, is connected to electric capacity C51, the anti-phase input of the first operational amplifier between the inverting input and outfan of the first operational amplifier
Resistance R78 is also associated between end and the first passage of channel control module.The water quality comprehensive detector selects combination PH electrode
Sensor detects the pH value of water quality, by combination PH electrode sensor signal processing circuit by the pH value information transfer for detecting to micro-
On processor, host computer can be transferred to by communication module, while detection information can also be shown by display screen.
Referring to the drawings 3 and accompanying drawing 6, in implementation process, chlorine residue polarogram type electrode sensor signal processing circuit is provided with second
Operational amplifier, the 3rd operational amplifier and four-operational amplifier；One positive voltage source+1.235V Jing resistance R62 are by voltage
Signal sends into the normal phase input end of the second operational amplifier, the inverting input Jing resistance R82 of the second operational amplifier, electric capacity
C64 is grounded, and the voltage signal of the outfan output of the second operational amplifier sends into chlorine residue polarogram type electrode sensing Jing after resistance R88
The anode of device, is also associated with electricity between the anode of the inverting input and chlorine residue polarogram type electrode sensor of the second operational amplifier
Resistance R82, is connected with electric capacity C53 between the inverting input and outfan of the second operational amplifier；One positive voltage source+1.235V Jing
Resistance R161 is sent into the normal phase input end of the 3rd operational amplifier, the sense of chlorine residue polarogram type electrode sensor negative electrode by voltage signal
Induction signal Jing resistance R151 sends into the inverting input of the 3rd operational amplifier, the output voltage of the 3rd operational amplifier output terminal
Signal Jing resistance R159 sends into the normal phase input end of four-operational amplifier, the inverting input of the 3rd operational amplifier and output
Electric capacity C90 is connected between end, between the negative electrode of the outfan and chlorine residue polarogram type electrode sensor of the 3rd operational amplifier also
It is connected to resistance R149；The inverting input Jing resistance R157 ground connection of four-operational amplifier, the outfan of four-operational amplifier
The signal after the process of chlorine residue polarogram type electrode sensor signal processing circuit is sent into into the of channel control module Jing resistance R150
Two passages, are connected with electric capacity C91 between the inverting input and outfan of four-operational amplifier, four-operational amplifier it is anti-
Resistance R152 is also associated between phase input and the second channel of channel control module.
Referring to the drawings 2, ORP electrode sensor signal processing circuits are combined in implementation process and are provided with the 5th operational amplifier
With the 6th operational amplifier；The induced signal Jing resistance R112 of compound ORP electrode sensors is just sending into the 5th operational amplifier
Current signal is sent into the inverting input of the 5th operational amplifier for phase input, a positive current source+2.470A Jing resistance R107,
Voltage signal Jing resistance R92, the resistance R113 of the 5th operational amplifier output terminal sends into the 6th operational amplifier normal phase input end,
Electric capacity C58 is connected between the inverting input and outfan of the 5th operational amplifier；The outfan Jing of the 6th operational amplifier
Resistance R93 is sent into the third channel of channel control module by the signal after the process of compound ORP electrode sensors signal processing circuit,
Resistance R101 is also associated between the inverting input of the third channel of channel control module and the 6th operational amplifier.
Referring to the drawings 3 and accompanying drawing 6, in implementation process, dissolved oxygen polarogram type electrode sensor signal processing circuit is provided with the
Seven operational amplifiers, the 8th operational amplifier and the 9th operational amplifier；One positive voltage source+1.235V Jing resistance R63 are by electricity
Pressure signal sends into the normal phase input end of the 7th operational amplifier, the inverting input Jing resistance R83 of the 7th operational amplifier, electric capacity
C47 is grounded, and the output voltage signal Jing resistance R89 of the 7th operational amplifier output terminal sends into and connects dissolved oxygen polarogram type electrode sensing
The anode of device, is connected with electric capacity C54 between the inverting input and outfan of the 7th operational amplifier, the 7th operational amplifier
Resistance R83 is also associated between the anode of inverting input and dissolved oxygen polarogram type electrode sensor；One positive voltage source+1.235V
Jing resistance R121 is sent into the normal phase input end of the 8th operational amplifier, dissolved oxygen polarogram type electrode sensor negative electrode by voltage signal
Induced signal Jing resistance R138 send into the 8th operational amplifier inverting input, the output of the 8th operational amplifier output terminal
Voltage signal Jing resistance R129 sends into the 9th operational amplifier normal phase input end, the inverting input of the 8th operational amplifier and defeated
Go out and be connected with electric capacity C84 between end, the negative electrode of the outfan and dissolved oxygen polarogram type electrode sensor of the 8th operational amplifier it
Between be also associated with resistance R145；9th operational amplifier inverting input Jing resistance R137 is grounded, the output of the 9th operational amplifier
Hold Jing resistance R146 and the signal after the process of dissolved oxygen polarogram type electrode sensor signal processing circuit is sent into into channel control module
Fourth lane；Electric capacity C85, the 9th operational amplifier are connected between the inverting input and outfan of the 9th operational amplifier
Inverting input and the fourth lane of channel control module between be also associated with resistance R139.
Referring to the drawings 5, in implementation process, pressure sensor signal process circuit is provided with the tenth operational amplifier；Pressure is passed
The induced signal Jing resistance R61 of sensor, diode D23, the normal phase input end of resistance R65 the tenth operational amplifiers of feeding, the tenth
The inverting input Jing resistance R76 ground connection of operational amplifier, the outfan Jing resistance R87 of the tenth operational amplifier is by pressure sensing
Signal after the process of device signal processing circuit sends into the clematis stem road of channel control module；The anti-phase input of the tenth operational amplifier
Electric capacity C52, the clematis stem of the inverting input and channel control module of the tenth operational amplifier are connected between end and outfan
Resistance R80 is also associated between road.Pressure transducer selects diffusion silicon pressure sensor, can be with pressure inside accurate detection water body
Power, is transferred to microprocessor after processed by the signal of telecommunication of detection.
Referring to the drawings 4, in implementation process temperature sensor signal process circuit be provided with the 11st operational amplifier, the tenth
Two operational amplifiers, the 13rd operational amplifier and the tenth four-operational amplifier；First induced signal Jing of temperature sensor
Resistance R135 sends into the normal phase input end of the 11st operational amplifier, the inverting input and outfan of the 11st operational amplifier
The positive input of the 12nd operational amplifier is sent in connection, the voltage signal Jing resistance R133 of the 11st operational amplifier output terminal
End, while a positive voltage source+1.235V Jing resistance R134 to be sent into the normal phase input end of the 12nd operational amplifier by voltage signal；
The inverting input Jing resistance R132 ground connection of the 12nd operational amplifier, the 12nd operational amplifier output terminal Jing resistance R136's
Normal phase input end of the INAA1 signal loadings to the tenth four-operational amplifier, the inverting input of the 12nd operational amplifier and defeated
Go out electric capacity C83 is connected between end；The INAA2 signal loadings of the second induced signal Jing resistance R147 of temperature sensor are to the tenth
The normal phase input end of three operational amplifiers, the normal phase input end also Jing electric capacity C94 ground connection of the 13rd operational amplifier, the 13rd fortune
Calculate the inverting input Jing resistance R154 ground connection of amplifier, the signal Jing resistance R155 of the 13rd operational amplifier output terminal connect the
The inverting input of ten four-operational amplifiers, is connected with electric capacity between the inverting input and outfan of the 13rd operational amplifier
C88；Tenth four-operational amplifier normal phase input end also Jing electric capacity C95 is grounded, and temperature is passed by the tenth four-operational amplifier outfan
Signal after sensor signal processing circuit processes sends into the Five-channel of channel control module, the tenth four-operational amplifier it is anti-phase
Electric capacity C89 is connected between input and outfan.
Referring to the drawings 5 and accompanying drawing 6, in implementation process, conductivity electrode sensor signal processing circuit is provided with the 15th fortune
Amplifier, the 16th operational amplifier, the 17th operational amplifier, the 18th operational amplifier, the 19th operational amplifier are calculated,
15th operational amplifier and the 16th operational amplifier annexation are as shown in fig. 6, a positive current source+1.235A Jing resistance
R116 and resistance R108 is sent into the normal phase input end of the 15th operational amplifier by current signal；17th operational amplifier,
Annexation such as Fig. 5 of 18 operational amplifiers and the 19th operational amplifier, the normal phase input end of the 17th operational amplifier
Ground connection, the outfan of the 18th operational amplifier is Jing after resistance R98 is by the process of conductivity electrode sensor signal processing circuit
Signal sends into the 7th passage of channel control module.
With reference to Fig. 1, the 20th operational amplifier is additionally provided with, voltage signal is sent by a positive voltage source+1.235V Jing resistance R66
Enter the 20th operational amplifier normal phase input end, the 20th operational amplifier inverting input Jing resistance R73 ground connection, the 20th fortune
Calculate amplifier out Jing resistance R84 output positive current signal+2.470A.With reference to Fig. 6, a positive current source+1.235A Jing resistance
R117 is sent into the normal phase input end of the 16th operational amplifier by current signal, and the 16th operational amplifier inverting input Jing is electric
Resistance R103, electric capacity C61 ground connection, the 16th operational amplifier output terminal Jing resistance R96 output positive current signal+1.235A.
In specific implementation process, the first operational amplifier, the 5th operational amplifier, the 6th operational amplifier and second
Ten operational amplifiers are integrated in chip piece U9, are replaced with integrated chip TCL2274；3rd operational amplifier, the 4th computing are put
Big device, the 8th operational amplifier and the 9th operational amplifier are integrated in chip piece U15, with integrated chip IC-14_OP4 generation
Replace；11st operational amplifier, the 12nd operational amplifier, the 13rd operational amplifier and the tenth four-operational amplifier are integrated
In chip piece U14, chip TCL2274 is also adopted by；Tenth operational amplifier, the 17th operational amplifier, the 18th computing are put
Big device and the 19th operational amplifier are integrated in chip piece U11, are also adopted by chip TCL2274；15th operational amplifier,
16 operational amplifiers, the second operational amplifier and the 7th operational amplifier are integrated in chip piece U10, are also adopted by chip
TCL2274。
The water quality comprehensive detector that this utility model is provided is commonly used in the water quality detection of swimming pool, tap water, drinking water
Face.
In the description of the present application, it is to be understood that term " first ", " second " etc. are not only used for describing purpose, and not
It is understood that to indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
In description of the present utility model, a large amount of details are illustrated.It is to be appreciated, however, that reality of the present utility model
Apply example to put into practice in the case where there is no these details.In some instances, known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this description.
Finally it should be noted that：Above example only to illustrate the technical solution of the utility model, rather than a limitation；
Although being described in detail to this utility model with reference to foregoing embodiments, one of ordinary skill in the art should manage
Solution：Which still can be modified to the technical scheme described in foregoing embodiments, or to which part or whole skills
Art feature carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from each reality of the invention
The scope of a technical scheme is applied, which all should be covered in the middle of the scope of claim of the present utility model and description.
Claims (9)
1. a kind of water quality comprehensive detector, including microprocessor, the supply module powered for the water quality comprehensive detector and use
In the sensor of water quality detection, it is characterised in that the sensor includes that combination PH electrode sensor, chlorine residue polarogram type electrode are passed
Sensor, compound ORP electrode sensors, dissolved oxygen polarogram type electrode sensor, pressure transducer, temperature sensor and electrical conductivity
Electrode sensor；The input of the microprocessor is connected with key-press module, communication module and channel control module, outfan connection
There are display driver circuit and relay drive circuit；
The induced signal of each sensor is distinguished Jing after the process of corresponding sensor signal processing circuit and sends into passage control
On one passage of module input；The sensor signal processing circuit includes that combination PH electrode sensor signal processes electricity
Road, chlorine residue polarogram type electrode sensor signal processing circuit, compound ORP electrode sensor signal processing circuits, dissolved oxygen polarogram
Type electrode sensor signal processing circuit, pressure sensor signal process circuit, temperature sensor signal process circuit and electricity
Conductance electrode sensor signal processing circuit；The outfan of the channel control module is connected with an input of the microprocessor
Connect；The communication module is used to receive the command information of host computer and sensor detection information is sent to host computer；It is described
The outfan connection outputting circuit for relay of relay drive circuit, for realizing the output control of the water quality comprehensive detector；
The outfan connection display screen of the display driver circuit, for showing sensor detection information.
2. water quality comprehensive detector according to claim 1, it is characterised in that at the combination PH electrode sensor signal
Reason circuit is provided with the first operational amplifier；The induced signal Jing resistance R67 of the PH electrode sensors sends into the first computing to be put
Current signal is sent into the anti-phase defeated of first operational amplifier by the normal phase input end of big device, a positive current source Jing resistance R74
Enter end, the outfan of first operational amplifier is Jing after resistance R85 is by the process of combination PH electrode sensor signal processing circuit
Signal send into the first passage of the channel control module, the inverting input and outfan of first operational amplifier it
Between be connected to electric capacity C51, between the first passage of the inverting input and the channel control module of first operational amplifier
It is also associated with resistance R78.
3. water quality comprehensive detector according to claim 1, it is characterised in that the chlorine residue polarogram type electrode sensor letter
Number process circuit is provided with the second operational amplifier, the 3rd operational amplifier and four-operational amplifier；One positive voltage source Jing
Resistance R62 sends into the normal phase input end of second operational amplifier by voltage signal, second operational amplifier it is anti-phase
Input Jing resistance R82, electric capacity C64 are grounded, the voltage signal Jing resistance R88 of the outfan output of second operational amplifier
The anode of chlorine residue polarogram type electrode sensor, the inverting input of second operational amplifier and chlorine residue polarogram type electricity are sent into afterwards
Resistance R82 is also associated between the anode of pole sensor, between the inverting input and outfan of second operational amplifier
It is connected with electric capacity C53；One positive voltage source Jing resistance R161 is sent into the positive input of the 3rd operational amplifier by voltage signal
The anti-phase defeated of the 3rd operational amplifier is sent at end, the induced signal Jing resistance R151 of chlorine residue polarogram type electrode sensor negative electrode
Enter end, the output voltage signal Jing resistance R159 of the 3rd operational amplifier output terminal sends into the four-operational amplifier
Normal phase input end, is connected with electric capacity C90, the 3rd fortune between the inverting input and outfan of the 3rd operational amplifier
Resistance R149 is further connected between the outfan and the negative electrode of chlorine residue polarogram type electrode sensor of calculating amplifier；4th computing is put
The inverting input Jing resistance R157 ground connection of big device, the outfan Jing resistance R150 of the four-operational amplifier is by chlorine residue polarogram
Signal after the process of type electrode sensor signal processing circuit sends into the second channel of the channel control module, the 4th fortune
Electric capacity C91, the inverting input of the four-operational amplifier are connected between the inverting input and outfan of calculating amplifier
Resistance R152 is also associated with and the second channel of the channel control module between.
4. water quality comprehensive detector according to claim 1, it is characterised in that the compound ORP electrode sensors signal
Process circuit is provided with the 5th operational amplifier and the 6th operational amplifier；The induced signal of the compound ORP electrode sensors
Jing resistance R112 sends into the normal phase input end of the 5th operational amplifier, and current signal is sent by a positive current source Jing resistance R107
Enter the inverting input of the 5th operational amplifier, the voltage signal Jing resistance R92 of the 5th operational amplifier output terminal,
Resistance R113 sends into the 6th operational amplifier normal phase input end, the inverting input of the 5th operational amplifier and output
Electric capacity C58 is connected between end；Compound ORP electrode sensors are believed by the outfan Jing resistance R93 of the 6th operational amplifier
Signal after number processing circuit processes sends into the third channel of the channel control module, the threeway of the channel control module
Resistance R101 is also associated between the inverting input of road and the 6th operational amplifier.
5. water quality comprehensive detector according to claim 1, it is characterised in that the dissolved oxygen polarogram type electrode sensor
Signal processing circuit is provided with the 7th operational amplifier, the 8th operational amplifier and the 9th operational amplifier；One positive voltage source
Jing resistance R63 sends into the normal phase input end of the 7th operational amplifier by voltage signal, the 7th operational amplifier it is anti-
Phase input Jing resistance R83, electric capacity C47 are grounded, the output voltage signal Jing resistance R89 of the 7th operational amplifier output terminal
The anode of dissolved oxygen polarogram type electrode sensor, the inverting input and outfan of the 7th operational amplifier are connect described in sending into
Between be connected with electric capacity C54, the inverting input of the 7th operational amplifier and the dissolved oxygen polarogram type electrode sensor
Anode between be also associated with resistance R83；Voltage signal is sent into the 8th operation amplifier by one positive voltage source Jing resistance R121
The normal phase input end of device, the induced signal Jing resistance R138 of the dissolved oxygen polarogram type electrode sensor negative electrode send into the described 8th
The inverting input of operational amplifier, the output voltage signal Jing resistance R129 of the 8th operational amplifier output terminal send into institute
The 9th operational amplifier normal phase input end is stated, between the inverting input and outfan of the 8th operational amplifier, electricity is connected with
Hold C84, be also connected between the outfan of the 8th operational amplifier and the negative electrode of the dissolved oxygen polarogram type electrode sensor
There is resistance R145；The 9th operational amplifier inverting input Jing resistance R137 ground connection, the 9th operational amplifier output
Hold Jing resistance R146 and the signal after the process of dissolved oxygen polarogram type electrode sensor signal processing circuit is sent into into the passage control
The fourth lane of module；Electric capacity C85, nine fortune are connected between the inverting input and outfan of nine operational amplifier
Resistance R139 is also associated between the inverting input and the fourth lane of the channel control module of calculating amplifier.
6. water quality comprehensive detector according to claim 1, it is characterised in that the pressure sensor signal process circuit
It is provided with the tenth operational amplifier；The induced signal Jing resistance R61 of the pressure transducer, diode D23, resistance R65 send into
The normal phase input end of the tenth operational amplifier, the inverting input Jing resistance R76 ground connection of the tenth operational amplifier, institute
Signal after the pressure sensor signal processing circuit processes is sent into by the outfan for stating the tenth operational amplifier Jing resistance R87
The clematis stem road of the channel control module；Electric capacity is connected between the inverting input and outfan of ten operational amplifier
C52, is also associated with resistance between the clematis stem road of the inverting input and the channel control module of ten operational amplifier
R80。
7. according to the arbitrary described water quality comprehensive detector of claim 1～6, it is characterised in that the microprocessor is monolithic
Movement piece STM32F103VET6.
8. water quality comprehensive detector according to claim 1, it is characterised in that the display screen is LCD screen, the LCD screen
Resolution be 128*64.
9. water quality comprehensive detector according to claim 1, it is characterised in that the relay drive circuit includes four
Relay, is connected with the microprocessor respectively, realizes the output control to the water quality comprehensive detector.
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|---|---|---|---|
| CN201621088293.4U CN206132118U (en) | 2016-09-27 | 2016-09-27 | Quality of water comprehensive testing appearance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831274A (en) * | 2017-11-06 | 2018-03-23 | 南京力通达电气技术有限公司 | One kind is used for bushing oil and gas composite on-Line Monitor Device |
| CN107884013A (en) * | 2017-11-18 | 2018-04-06 | 衡阳县海得利网络技术有限公司 | Internet of Things water quality real-time detection apparatus |
| CN113484367A (en) * | 2021-07-07 | 2021-10-08 | 上海电气数智生态科技有限公司 | Circuit and method for improving measurement precision of multi-channel water quality sensor |
-
2016
- 2016-09-27 CN CN201621088293.4U patent/CN206132118U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831274A (en) * | 2017-11-06 | 2018-03-23 | 南京力通达电气技术有限公司 | One kind is used for bushing oil and gas composite on-Line Monitor Device |
| CN107884013A (en) * | 2017-11-18 | 2018-04-06 | 衡阳县海得利网络技术有限公司 | Internet of Things water quality real-time detection apparatus |
| CN113484367A (en) * | 2021-07-07 | 2021-10-08 | 上海电气数智生态科技有限公司 | Circuit and method for improving measurement precision of multi-channel water quality sensor |
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