CN106198700B - Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution - Google Patents
Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution Download PDFInfo
- Publication number
- CN106198700B CN106198700B CN201610672582.7A CN201610672582A CN106198700B CN 106198700 B CN106198700 B CN 106198700B CN 201610672582 A CN201610672582 A CN 201610672582A CN 106198700 B CN106198700 B CN 106198700B
- Authority
- CN
- China
- Prior art keywords
- filamentous
- electrode
- circuit
- analog
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
Abstract
The invention discloses a kind of Filamentous three electrode sensing systems of data self-tolerant of detection submarine hydrothermal solution, realize the concentration of metal ions abnormality detection in submarine hydrothermal solution plume, introduce temperature sensing simultaneously, different sensors data fusion and calibration are completed, the detection accuracy and anti-interference ability of the sensor in extreme environment are improved.The sensing system is made of titanium alloy pressure resistance cavity and fixed data self-tolerant metal ion detection instrument in the cavity, wherein metal ion detection instrument includes power module, analog module, digital circuit blocks and sensor, automatic detection to complete system is stored with data, it realizes the long term monitoring to seabed concentration of metal ions and temperature, there is great reference value and application prospect for submarine hydrothermal solution detection.
Description
Technical field
The present invention relates to electrochemical sensor field more particularly to a kind of concentration of metal ions for sea bottom complex environment
With the three electrode sensing system of filiform of temperature anomaly long term monitoring.
Background technology
Submarine hydrothermal activity is generally happened at big midocean active plate boundary and intraplate volcanism center.Submarine hydrothermal solution
For the activity of human knowledge's earth depths, the exploration of submarine hydrothermal solution mineral products, extreme environment biological evolution mode and origin of life
The research of equal problem in science has great significance.Submarine hydrothermal solution is rich in various metals ingredient, and seabed concentration of metal ions is abnormal
Detection has great significance to the discovery of submarine hydrothermal solution and sea floor hydrothermal polymetallic deposit.
Since environment complexity is special, common metal ion detecting device is difficult to live in situ detection, traditional in seabed
The mode of the sampling of first deep-sea, again test in laboratory, not only heavy workload, take long, but also technical difficulty is big, expends a large amount of manpowers
Material resources.In contrast, stripping voltammetry under constant potential by, to heavy metal ion preenrichment, being greatly improved working electrode table
The concentration of face heavy metal, with it is after-applied by bear make to positive scanning voltage the heavy metal of enrichment it is reoxidized be ionic state, pass through
The corresponding characteristic peak of heavy metal carries out quantitative analysis.Stripping voltammetry has very low Monitoring lower-cut, can detect simultaneously a variety of heavy
Metal, time of measuring is short, high sensitivity, easy to operate, can be used as quick long term monitoring means.
Traditional large electrode size is larger, and structure does not have toughness, and mostly uses the material packages such as polytetrafluoroethylene (PTFE), it is difficult to ensure that
Normal use under the hyperbaric environment of seabed, while micro-nano electrode is due to using silicon base or substrate of glass, material brittle, it is also difficult to
It is used in complicated environments such as subsea.Filamentous metal electrode size is small, has metal toughness and intensity, adapts to seabed hyperbaric environment
In.Currently, there is not yet Filamentous three electrodes to be used for the correlation of submarine hydrothermal solution concentration of metal ions detection in relation to domestic and international researcher
Report.
With the development of habitata demand, metal ion long-term in-situ monitoring in seabed is further important.The present invention uses silk
Three electrode combination of filiform of shape gold electrode, Filamentous platinum electrode and the Filamentous silver electrode that silver chlorate is electroplated, introduces temperature sensing number
It is more to solve ocean bottom currents temperature etc. according to concentration of metal ions model calibration, while for correcting submarine hydrothermal solution prediction model
Kind factor influences, and improves the anti-interference ability of submarine hydrothermal solution sensor.The system titanium alloy pressure resistance cavity includes polymer simultaneously
Lithium battery and serial flash can meet the needs of seabed long term power source supply and data storage, have in deep-sea detecting etc.
There is great application prospect.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of data self-tolerant of detection submarine hydrothermal solution
Filamentous three electrode sensing systems, the present invention can be used for the long term monitoring of seabed concentration of metal ions and temperature, reach seabed heat
The application requirement of liquid detection.
The purpose of the present invention is achieved through the following technical solutions：A kind of data self-tolerant silk of detection submarine hydrothermal solution
Three electrode sensing system of shape, the system are made of titanium alloy pressure resistance cavity and data self-tolerant metal ion detection instrument；It is described
Metal ion detection instrument includes power module, analog module, digital circuit blocks and sensor；The sensor includes
Filamentous gold electrode, Filamentous platinum electrode, Filamentous silver electrode and temperature sensor；Filamentous silver electrode is by plating mode in electroplating surface
One layer of chlorination silverskin；The filiform gold electrode, Filamentous platinum electrode, Filamentous silver electrode and temperature sensor are fixed on titanium alloy pressure resistance
On the titanium alloy sealing cover of cavity, one end is exposed to containment portion；The power module, analog module and digital circuit mould
Block is fixed on by copper post in titanium alloy pressure resistance cavity body, and analog module is electric with Filamentous gold respectively by coaxial shielding line
Pole, Filamentous platinum electrode, Filamentous silver electrode are connected with temperature sensor；The digital circuit blocks and analog module pass through electricity
Source line is connected with power module.By timing detection and the storage of testing result self-tolerant, this system can be used for heavy metal ion
Long-term detection.
Further, the Filamentous gold electrode is as working electrode, and is the spun gold of diameter 0.5mm, long 10mm；The silk
Shape platinum electrode is used as to electrode, and is the platinum filament of diameter 0.5mm, long 10mm；The filiform silver electrode and is as reference electrode
The filamentary silver of diameter 0.5mm, long 10mm.
Further, the analog module includes I/V translation circuits, filtering, zeroing and amplifying circuit, analog-to-digital conversion
Circuit, operational amplifier, D/A converting circuit, temperature sensor modulate circuit and screened circuit of having chance with；The digital circuit mould
Block includes microprocessor, real-time timepiece chip, storage chip and serial line interface；The power module include poly-lithium battery and
Electric power management circuit；
The analog module carries out LC to the output signal of Filamentous three electrodes in front end and tentatively filters, using coaxial electrical
Cable improves shield effectiveness to the shielded layer of Filamentous gold electrode and Filamentous silver electrode to transmit using active shielding circuit；
The D/A converting circuit, analog to digital conversion circuit, temperature sensor modulate circuit, real-time timepiece chip, storage chip and serial
Interface is connect with microprocessor；Microprocessor by real-time timepiece chip obtain real-time time, to reach timing detect and to
The purpose that testing result adds timestamp；Microprocessor is communicated using serial line interface and host computer, receives instruction, or will store core
Testing result in piece passes to host computer；The output of D/A converting circuit is separately connected active screened circuit and operational amplifier
In-phase input end, for providing have chance with screened circuit voltage and the required bias of electrochemical reaction；Filamentous silver electrode connection
The inverting input of operational amplifier, the Filamentous platinum electrode of output end connection of operational amplifier；Filamentous gold electrode, I/V transformation electricity
Road, filtering, zeroing and amplifying circuit, analog to digital conversion circuit are sequentially connected, by I/V translation circuits by faint electrochemical signals
(current signal) is converted into stronger voltage signal, at the same the voltage signal converted out it is filtered, zeroing and amplifying circuit into
After row signal condition, microprocessor is transferred to through analog to digital conversion circuit；The temperature sensor and temperature sensor modulate circuit
Connection, the resistance signal of temperature sensor generate corresponding voltage signal by the conditioning of temperature sensor modulate circuit, then by
Microprocessor internal AD conversion unit acquires.
Further, the signal condition process of the filtering, zeroing and amplifying circuit is specially：Utilize four different one
Rank passive RC filter carries out low-pass filtering to voltage signal, the high-frequency noise that the possibility in removing circuit introduces；Introduce zeroing
Circuit pre-processes the signal for being sent into analog to digital conversion circuit, and DC-offset correction makes full use of the amount of analog to digital conversion circuit
Journey；Signal once make full use of the range of analog to digital conversion circuit with mutually amplifying, realize High Resolution conversion.
Further, which is detected using the difference of the feature oxidation-reduction potential of each heavy metal species；First into
Row voltage is enriched with：Filamentous gold electrode applies constant potential as working electrode on Filamentous gold electrode, and heavy metal ion is reduced
For atomic state, it is deposited on Filamentous gold electrode surfaces；Next carries out electrolysis dissolution：Using Differential Pulse Stripping Voltammetry, i.e., in silk
On the basis of the dc sweeps voltage for applying linear change on shape gold electrode, it is superimposed the rectangular pulse current potential of small amplitude, each
The a certain sampling time acquires current signal before a certain sampling time and pulse termination before superimposed pulse, is recorded twice the electric current of acquisition
Signal difference obtains differential pulse Stripping Voltammetry curve；Differential Pulse Stripping Voltammetry substantially eliminates the shadow of background current
It rings, so that detection limit is declined, sensitivity greatly improves.
The invention has the advantages that the present invention uses Filamentous three electrodes and temperature sensor as detecting element, pass through
The data fusion of multiple sensors and calibration improve accuracy and the anti-interference ability of the detection submarine hydrothermal solution of system.Design
Sensor-based system is directed to subsea use environment, makes the pressure-resistant cavity of sealing using high strength titanium alloy, and pass through the automatic detection of timing
It is stored with testing result self-tolerant, realizes the system long term monitoring concentration of heavy metal ion and temperature under sea bottom complex environment
Demand provides data and model reference for submarine hydrothermal solution detection.
Description of the drawings
Fig. 1 is the structure diagram of sensor-based system of the present invention；
Fig. 2 is the circuit structure diagram of data self-tolerant metal ion detection instrument of the present invention；
In figure, Filamentous silver electrode 1, Filamentous gold electrode 2, Filamentous platinum electrode 3, temperature sensor 4, titanium alloy pressure resistance cavity 5,
Titanium alloy sealing cover 6, digital circuit blocks 7, analog module 8, power module 9, I/V translation circuits 10, filtering, zeroing and
Amplifying circuit 11, operational amplifier 13, D/A converting circuit 14, temperature sensor modulate circuit 15, has analog to digital conversion circuit 12
Edge screened circuit 16, microprocessor 17, real-time timepiece chip 18, storage chip 19, serial line interface 20, poly-lithium battery 21,
Electric power management circuit 22.
Specific implementation mode
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the present invention is detected for submarine hydrothermal solution, sensor-based system is held certainly by titanium alloy pressure resistance cavity 5 and data
Formula metal ion detection instrument forms；The metal ion detection instrument includes power module 9, analog module 8, number electricity
Road module 7 and sensor；The sensor includes Filamentous gold electrode 2, Filamentous platinum electrode 3, Filamentous silver electrode 1 and temperature sensor
4；Filamentous silver electrode 1 is by plating mode in one layer of chlorination silverskin of electroplating surface；The filiform gold electrode 2, Filamentous platinum electrode 1,
Filamentous silver electrode 3 and temperature sensor 4 are fixed on the titanium alloy sealing cover 6 of titanium alloy pressure resistance cavity 5, and one end is exposed to cavity
It is external；The power module 9, analog module 8 and digital circuit blocks 7 are fixed on titanium alloy pressure resistance cavity body by copper post
In 5, analog module 8 by coaxial shielding line respectively with Filamentous gold electrode 2, Filamentous platinum electrode 1, Filamentous silver electrode 3 and temperature
Sensor 4 is spent to be connected；The digital circuit blocks 7 and analog module 8 are connected by power cord with power module 9.
As shown in Fig. 2, the analog module 8 includes I/V translation circuits 10, and filtering, zeroing and amplifying circuit 11, mould
Number conversion circuit 12, operational amplifier 13, D/A converting circuit 14, temperature sensor modulate circuit 15 and screened circuit of having chance with
16；The digital circuit blocks 7 include microprocessor 17, real-time timepiece chip 18, storage chip 19 and serial line interface 20；It is described
Power module 9 includes poly-lithium battery 21 and electric power management circuit 22；Data self-tolerant metal ion detection instrument uses poly-
It closes object lithium battery 21 to power, and corresponding power supply is provided for modules by electric power management circuit 22.
The analog module 8 carries out LC to the output signal of Filamentous three electrodes in front end and tentatively filters, using coaxial
Cable improves shielding effect to the shielded layer of Filamentous gold electrode 2 and Filamentous silver electrode 1 to transmit using active shielding circuit
Fruit；The form of short-circuited conducting sleeve is also taken for the signal lead on pcb board to improve signal-to-noise ratio.
The D/A converting circuit 14, analog to digital conversion circuit 12, temperature sensor modulate circuit 15, real-time timepiece chip
18, storage chip 19 and serial line interface 20 are connect with microprocessor 17；The system can be used 16 super low-power consumptions, have and simplify finger
It enables the mixed-signal processor MSP430F5438A of collection as microprocessor 17, realizes the control to whole system detection process.It is micro-
Processor 17 obtains real-time time by real-time timepiece chip 18, to reach timing detection and add timestamp to testing result
Purpose；Microprocessor 17 is communicated using serial line interface 20 and host computer, receives instruction, or by the detection knot in storage chip 19
Fruit passes to host computer；Real-time timepiece chip 18 uses DS1302, storage chip 19 to use high speed Flash chip
SST25VF032B, it is ensured that the application requirement of about 5000 testing results storage.
The output of D/A converting circuit 14 is separately connected the in-phase input end of active screened circuit 16 and operational amplifier 13,
For providing have chance with screened circuit voltage 16 and the required bias of electrochemical reaction；D/A converting circuit 14 is using TI companies
DAC8831 chips are 16 digit mode converters of SPI interface.
Filamentous silver electrode 1 connects the inverting input of operational amplifier 13, and the output end connection of operational amplifier 13 is Filamentous
Platinum electrode 3；Filamentous gold electrode 1, I/V translation circuits 10, filtering, zeroing and amplifying circuit 11, analog to digital conversion circuit 12 connect successively
It connects, convert 10 circuits by I/V is converted into stronger voltage signal by faint electrochemical signals (current signal), converts simultaneously
After the voltage signal that goes out is filtered, zeroing and amplifying circuit 11 carry out signal condition, it is transferred to through analog to digital conversion circuit 12 micro-
Processor 17；For analog to digital conversion circuit 12 using the ADS8509 chips of TI companies, which is 16 250kHzCMOS analog-to-digital conversions
Device has SPI interface, is acquired for the electrochemical signals to generation.The signal of the filtering, zeroing and amplifying circuit 11
Conditioning process is specially：Low-pass filtering, removing circuit are carried out to voltage signal using four different single order passive RC filters
In possibility introduce high-frequency noise；It introduces zeroing circuit to pre-process the signal for being sent into analog to digital conversion circuit, eliminate straight
Stream biasing, makes full use of the range of analog to digital conversion circuit；Signal is carried out once to make full use of analog to digital conversion circuit with mutually amplifying
12 range realizes High Resolution conversion.
The temperature sensor 4 is connect with temperature sensor modulate circuit 15, and the resistance signal of temperature sensor 4 passes through temperature
It spends the conditioning of Conditioning Circuits of Sensor 15 and generates corresponding voltage signal, then adopted by 17 inside AD conversion unit of microprocessor
Collection.Temperature value is recorded while Voltammetric detection, carries out the data fusion of electrochemical signals and temperature signal, is calibrated by environment temperature
The electrochemical signals influenced are spent, the detection accuracy and anti-interference ability of the sensor in extreme environment can be improved.
Further, the Filamentous gold electrode 2 is used as working electrode, and is the spun gold of diameter 0.5mm, long 10mm；It is described
Filamentous platinum electrode 3 is used as to electrode, and is the platinum filament of diameter 0.5mm, long 10mm；The filiform silver electrode 1 is used as reference electrode,
And it is the filamentary silver of diameter 0.5mm, long 10mm.
The testing principle of this system is as follows：The system is carried out using the difference of the feature oxidation-reduction potential of each heavy metal species
Detection；Voltage enrichment is carried out first：Filamentous gold electrode 1 is used as working electrode, applies constant potential on Filamentous gold electrode 1, weight
Metal ion is reduced to atomic state, is deposited on 1 surface of Filamentous gold electrode；Next carries out electrolysis dissolution：It is molten using differential pulse
Go out voltammetry and is superimposed the rectangle of small amplitude that is, on the basis of applying the dc sweeps voltage of linear change on Filamentous gold electrode 1
Pulse potential, a certain sampling time acquires current signal, note before a certain sampling time and pulse termination before each superimposed pulse
The current signal difference acquired twice is recorded, differential pulse Stripping Voltammetry curve is obtained.Different heavy metals passes through its specificity
Oxidizing potential distinguishes, and the amplitude of oxidation peak current and sample heavy metal concentration are in a linear relationship, for determining for heavy metal
Amount analysis.
The complete workflow of the present invention is：Host computer sends detection instruction by serial line interface 20 to microprocessor 17,
Including parameter setting, timing detection etc..When real-time timepiece chip 18 reaches timing, 17 controller unit of microprocessor starts
Concentration of heavy metal ion and temperature detection, and testing result is stored in storage chip 19.Host computer passes through serial line interface 20
Result is sent to microprocessor 17 and reads instruction, and microprocessor 17 reads 19 accordingly result of storage chip, and passes through serial line interface
20 return to host computer.
Claims (3)
1. a kind of Filamentous three electrode sensing systems of data self-tolerant of detection submarine hydrothermal solution, which is characterized in that the system is closed by titanium
Golden pressure resistance cavity and data self-tolerant metal ion detection instrument composition；The metal ion detection instrument include power module,
Analog module, digital circuit blocks and sensor；The sensor includes Filamentous gold electrode, Filamentous platinum electrode, Filamentous silver
Electrode and temperature sensor；Filamentous silver electrode is by plating mode in one layer of chlorination silverskin of electroplating surface；The filiform gold electrode,
Filamentous platinum electrode, Filamentous silver electrode and temperature sensor are fixed on the titanium alloy sealing cover of titanium alloy pressure resistance cavity, and one end is sudden and violent
It is exposed at containment portion；The power module, analog module and digital circuit blocks are fixed on titanium alloy pressure resistance by copper post
In cavity body, analog module by coaxial shielding line respectively with Filamentous gold electrode, Filamentous platinum electrode, Filamentous silver electrode and temperature
Sensor is spent to be connected；The digital circuit blocks and analog module are connected by power cord with power module；
The analog module includes I/V translation circuits, filtering, zeroing and amplifying circuit, analog to digital conversion circuit, operation amplifier
Device, D/A converting circuit, temperature sensor modulate circuit and screened circuit of having chance with；The digital circuit blocks include microprocessor
Device, real-time timepiece chip, storage chip and serial line interface；The power module includes poly-lithium battery and power management electricity
Road；
The analog module carries out LC to the output signal of Filamentous three electrodes in front end and tentatively filters, using coaxial wire
To transmit, while shield effectiveness is improved using active shielding circuit to the shielded layer of Filamentous gold electrode and Filamentous silver electrode；It is described
D/A converting circuit, analog to digital conversion circuit, temperature sensor modulate circuit, real-time timepiece chip, storage chip and serial line interface
It is connect with microprocessor；Microprocessor obtains real-time time by real-time timepiece chip, is detected and to detection to reach timing
As a result the purpose added timestamp；Microprocessor is communicated using serial line interface and host computer, receives instruction, or will be in storage chip
Testing result pass to host computer；The output of D/A converting circuit is separately connected the same of active screened circuit and operational amplifier
Phase input terminal, for providing have chance with screened circuit voltage and the required bias of electrochemical reaction；Filamentous silver electrode connects operation
The inverting input of amplifier, the Filamentous platinum electrode of output end connection of operational amplifier；Filamentous gold electrode, I/V translation circuits, filter
Wave, zeroing and amplifying circuit, analog to digital conversion circuit are sequentially connected, and are converted faint electrochemical signals by I/V translation circuits
At stronger voltage signal, at the same the voltage signal converted out it is filtered, zeroing and amplifying circuit carry out signal condition after, warp
Analog to digital conversion circuit is transferred to microprocessor；The temperature sensor is connect with temperature sensor modulate circuit, temperature sensor
Resistance signal corresponding voltage signal is generated by the conditioning of temperature sensor modulate circuit, then by microprocessor internal modulus
Converting unit acquires；
The filtering, zeroing and the signal condition process of amplifying circuit are specially：It is filtered using the passive RC of four different single orders
Device carries out low-pass filtering to voltage signal, the high-frequency noise that the possibility in removing circuit introduces；Zeroing circuit is introduced to being sent into mould
The signal of number conversion circuit is pre-processed, and DC-offset correction makes full use of the range of analog to digital conversion circuit；Signal is carried out
It is primary to make full use of the range of analog to digital conversion circuit with mutually amplifying, realize High Resolution conversion.
2. a kind of Filamentous three electrode sensing systems of data self-tolerant of detection submarine hydrothermal solution according to claim 1, special
Sign is that the filiform gold electrode is the spun gold of diameter 0.5mm, long 10mm as working electrode；The filiform platinum electrode is made
For to electrode, and it is the platinum filament of diameter 0.5mm, long 10mm；It is described filiform silver electrode as reference electrode, and be diameter 0.5mm,
The filamentary silver of long 10mm.
3. a kind of Filamentous three electrode sensing systems of data self-tolerant of detection submarine hydrothermal solution according to claim 1, special
Sign is that the system is detected using the difference of the feature oxidation-reduction potential of each heavy metal species；Voltage enrichment is carried out first：
Filamentous gold electrode applies constant potential as working electrode on Filamentous gold electrode, and heavy metal ion is reduced to atomic state, sinks
Product is in Filamentous gold electrode surfaces；Next carries out electrolysis dissolution：Using Differential Pulse Stripping Voltammetry, i.e., applied on Filamentous gold electrode
On the basis of the dc sweeps voltage for adding linear change, be superimposed the rectangular pulse current potential of small amplitude, before each superimposed pulse certain
The a certain sampling time acquires current signal before one sampling time and pulse termination, is recorded twice the current signal difference of acquisition, obtains
To differential pulse Stripping Voltammetry curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672582.7A CN106198700B (en) | 2016-08-15 | 2016-08-15 | Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672582.7A CN106198700B (en) | 2016-08-15 | 2016-08-15 | Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106198700A CN106198700A (en) | 2016-12-07 |
| CN106198700B true CN106198700B (en) | 2018-09-28 |
Family
ID=57521675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610672582.7A Active CN106198700B (en) | 2016-08-15 | 2016-08-15 | Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106198700B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770534A (en) * | 2016-12-26 | 2017-05-31 | 安徽省碧水电子技术有限公司 | It is a kind of with temperature sensor based on the two poles of the earth system water quality detection system |
| CN111220778B (en) * | 2020-03-02 | 2022-05-31 | 北京市华云分析仪器研究所有限公司 | Signal processing circuit of carbon monoxide analyzer |
| CN113155918B (en) * | 2021-04-26 | 2022-06-10 | 中国核动力研究设计院 | Constant potential driving type hydrogen concentration sensor transmitting circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201177613Y (en) * | 2008-03-20 | 2009-01-07 | 杭州电子科技大学 | Sea water heavy metal pollutant on site analyzer |
| CN102735873A (en) * | 2012-06-26 | 2012-10-17 | 大连理工大学 | Deep sea self-contained type sensor based on multiple variables and energy supply method thereof |
| CN203037618U (en) * | 2013-01-29 | 2013-07-03 | 无锡市政设计研究院有限公司 | Portable heavy metal detector |
| CN205898741U (en) * | 2016-08-15 | 2017-01-18 | 国家海洋局第二海洋研究所 | Data of surveying seabed hydrothermal solution are from three filiform electrode sensing system of appearance formula |
-
2016
- 2016-08-15 CN CN201610672582.7A patent/CN106198700B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201177613Y (en) * | 2008-03-20 | 2009-01-07 | 杭州电子科技大学 | Sea water heavy metal pollutant on site analyzer |
| CN102735873A (en) * | 2012-06-26 | 2012-10-17 | 大连理工大学 | Deep sea self-contained type sensor based on multiple variables and energy supply method thereof |
| CN203037618U (en) * | 2013-01-29 | 2013-07-03 | 无锡市政设计研究院有限公司 | Portable heavy metal detector |
| CN205898741U (en) * | 2016-08-15 | 2017-01-18 | 国家海洋局第二海洋研究所 | Data of surveying seabed hydrothermal solution are from three filiform electrode sensing system of appearance formula |
Non-Patent Citations (1)
| Title |
|---|
| Development of Zr/ZrO_2 high temperature and high pressure sensors for in-situ measuring chemical parameters of deep-sea water;ZHANG XueTong等;《Science in China Series E: Technological Sciences》;20090830;第52卷(第8期);第2466-2473页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106198700A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106198700B (en) | Detect the Filamentous three electrode sensing systems of data self-tolerant of submarine hydrothermal solution | |
| CN201060198Y (en) | Integrated forming disposable electrochemical sensor for determining blood lead concentration | |
| Zhao et al. | A portable electrochemical system for the on-site detection of heavy metals in farmland soil based on electrochemical sensors | |
| CN101975811A (en) | Electrochemical sensor for field trace heavy metal detection | |
| CN101021503A (en) | Silk screen printing electrode and producing process, and sensor and detecting method | |
| CN103076381A (en) | Anodic stripping voltammetric mechanism-based online automatic monitoring system for heavy metal ions in water | |
| CN106483184A (en) | Heavy metal analysis device and method based on graphene sensor | |
| CN106501332A (en) | Zn MOFs/ glass-carbon electrodes and preparation method thereof and application | |
| CN102243210A (en) | Portable heavy metal lead, cadmium, and zinc sensor, preparation method thereof, and detection method | |
| CN109254041A (en) | The electrochemical detection method of capsaicine in a kind of capsicum | |
| CN113418972A (en) | Water body heavy metal detector with multi-range automatic switching function and detection method | |
| CN203535000U (en) | Portable detector for detection of heavy metal in water environment | |
| CN202018424U (en) | Food-safety detecting instrument | |
| CN205898741U (en) | Data of surveying seabed hydrothermal solution are from three filiform electrode sensing system of appearance formula | |
| CN103940873A (en) | Electrochemical and optoelectronic integrated chip for monitoring heavy metal and wireless buoy sensing system | |
| CN101614690A (en) | A kind of multi-channel electrochemical analyzer | |
| CN207557166U (en) | A kind of graphene test paper electrode and its heavy metal detector based on electrochemistry of foundation | |
| CN201177613Y (en) | Sea water heavy metal pollutant on site analyzer | |
| CN203037618U (en) | Portable heavy metal detector | |
| CN201796009U (en) | Portable sensor for heavy metal including lead, cadmium and zinc | |
| CN107367535A (en) | One kind is based on BiVO4Biology sensor of perforated membrane and preparation method thereof | |
| CN215339624U (en) | Water body heavy metal detector with multi-range automatic switching function | |
| CN108362753B (en) | Trace heavy metal detection system and detection method based on chronopotentiometric dissolution method | |
| CN106970125B (en) | Portable soil heavy metal detection device | |
| CN202002905U (en) | Electrogenerated chemiluminescence transient state analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |