CN106198375A - A kind of deep-sea multichannel corrosion electrochemistry in-situ testing device and method of testing thereof - Google Patents
A kind of deep-sea multichannel corrosion electrochemistry in-situ testing device and method of testing thereof Download PDFInfo
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Abstract
The present invention provides a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device and method of testing thereof, belong to metal and organic coating coating material corrosion electrochemistry field of automatic testing in situ in abyssal environment, this device uses oil reservoir logging high pressure sealing technology, by power supply, precision analog and digital circuit, the function element such as memorizer and electrochemical sensor is sealed in pressure hull, form the deep-sea corrosion electrochemistry work station of black box minor, electro-chemical test is carried out in as deep as 3000 meters of sea water, realize corrosion potential/electric current, constant potential polarization, all kinds of measurement data such as cyclic voltammetry curve and AC impedance is acquired according to the frequency set and stores.Present configuration is the compactest, and extensibility is high, can carry out the electrochemical in-situ test under various metals or organic coating coating sample abyssal environment simultaneously；Lay simple with reclaimer operation, independent current source, high pressure resistant, volume is little, can be combined with the deep sea installations of any other form or carry, long working life.
Description
Technical field
The invention belongs to metal and organic coating coating material corrosion electrochemistry automatic test technology in situ in abyssal environment
Field, relates to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device and method of testing thereof.
Background technology
Along with scientific and technological progress and earth resource are the most exhausted, the mankind are pursuing expansion deep space, deep-sea and activity deeply always
Space.The exploitation application of exploitation exploration, deep-sea engineering construction and the deep sea equipment of deep-sea oil gas, mineral products and living resources,
Become the key content of China's Development of Marine economy.Nowadays, China's autonomous Design, integrated manned underwater vehicle " flood dragon " number are
Deep diving is to 7000 meters.No. 981 semi-submersible type deepwater drilling platforms of offshore oil, its depth of implements reaches 3050 meters, has marched the South Sea, opened
Beginning deep ocean work.But, due to the particularity of abyssal environment, deep sea equipment is faced with serious corrosion harmfulness, and likely
Become exploitation deep-sea resources, utilize space, deep-sea and the technical bottleneck building deep-sea engineering system, thus affect China's ocean warp
Ji shapes up with deep sea equipment.Therefore research and solve in abyssal environment and equip the etching problem of material very urgently,
Become the study hotspot in current material corrosion subject.
Compared with equipping with land equipment and shallow sea, the difference of deep sea equipment maximum is affected by huge static pressure effect.?
There are some researches show, deep sea static pressure power all may make the mechanical property generation deep fades of material with deep-sea corrosion.Organic coating is
To one of most important means that offshore engineering structure protects in abyssal environment, deep sea pressure can accelerate the inefficacy of organic coating, leads
Cause the earlier period damage of marine ship, oil platform, bathyscaph etc..Therefore, for corrosion of metal behavior in abyssal environment with have
The research of organic coating inefficacy mechanism, it has also become the problem that current various countries' corrosion scientific research personnel extremely pays close attention to.Current deep-sea material is rotten
Corrosion test is studied, main employing lab simulation Acceleration study, and achieved with many significant datas.But, the test of real sea more connects
The true service state of nearly material, its data are more valuable.Due to the shortage of deep-sea electro-chemical test means, current real sea is surveyed
Examination mostly uses weightless lacing film method, it is impossible to shows in real time or characterizes the corrosion kinetics process of material in deep-sea and aging shape
State, can only judge extent of corrosion by sample analysis after experiment terminates.And to reflect that the Dynamic Corrosion of material lost efficacy in real time
Behavior, it is necessary to carrying out the electrochemical in-situ research of real sea, this can effectively promote deep-sea corrosion research level.
Summary of the invention
The technical assignment of the present invention is for the deficiencies in the prior art, seek development and design one can the depth of water 3000 meters with
Interior deep-sea marine environment is medium-term and long-term, carry out metal or the test device of organic coating coating material electrochemical data acquisition in situ and
Its method of testing, integrates power supply, electrochemical sensing and data frequency collection/storage function surely, can one-shot measurement at least four
The Electrochemistry Information of individual above sample, resolves corresponding anti-by corrosion potential/electric current, polarization curve to the measurement of ac impedance spectroscopy
Answer heat/kinetic parameter, in conjunction with the measurement data of marine environment, specify abyssal environment material corrosion failure mechanism model.
The technical solution adopted for the present invention to solve the technical problems is: use oil reservoir logging high pressure sealing technology (＞
30 MPa), the function element such as power supply, precision analog and digital circuit, memorizer and electrochemical sensor are sealed in titanium and close
In gold pressure hull, form the deep-sea corrosion electrochemistry work station of black box minor, electricity can be carried out in as deep as 3000 meters of sea water
Test chemical, it is achieved all kinds of measurement data such as corrosion potential/electric current, constant potential polarization, cyclic voltammetry curve and AC impedance
It is acquired according to the frequency set and stores.Set of device can load more than one piece metal or organic coating coating sample, throws in
In 100 ~ 3000 meters of deep sea water, the time of 1 ~ 6 month can be laid under water according to test requirements document.
1, the present invention provides a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device, uses compact structure design,
All chips all use high-density packages form, and its agent structure includes pressure hull and top cover, pressure hull and top cover composition
The test space closed, and therein space is installed multi-channel measurement electrode system, amplifier scaling circuit and filtering/
Compensate circuit, analog-digital converter, timer clock, power module, singlechip microcontroller, memorizer, digital-to-analogue conversion
Device and channel selecting relay, wherein,
Described power module is connected with singlechip microcontroller, the running voltage needed for providing for system；
Described multi-channel measurement electrode system is located in pressure hull, and stretched out by top cover, and it includes multiple being connected in parallel
Corrosion monitoring assembly；
Described amplifier scaling circuit and filtering/compensation are electrically connected to the rear end of multi-channel measurement electrode system, simulate number
The front end of word transducer, for adaptively selected range, it is achieved the range switching during system electrochemical measurement；
Described analog-digital converter interconnects with singlechip microcontroller, for signal is acquired, and incoming single-chip microcomputer micro-control
Carry out in device calculating, process and storing；
Described timer clock is connected with singlechip microcontroller, provides correct time to carry out forced resetting for system, system
Relevant parameter and measurement result are saved in memorizer, and communicate with host computer through communication interface；
Described digital analog converter is connected to the outfan of single-chip microcomputer micro controller, is used for generating multiple pumping signal to body to be measured
System encourages, and according to the kind of pumping signal, carries out electrochemical in-situ test；
Described channel selecting relay is connected to the rear end of digital analog converter, the front end of multi-channel measurement electrode system, uses
In multi-channel measurement electrode system is carried out break-make to select a mode.
Further, described corrosion monitoring assembly includes that the resistance probe being exposed in the corrosive environment of deep-sea and three electrodes are visited
Head, three electrode probes include working electrode, reference electrode and to electrode, and working electrode selects metal to be measured or organic coating coating
Material.
Further, described three electrode probes and resistance probe sensing element use PEEK fire resistant special type Material injection
Molding, forms the corrosion monitoring assembly of integration.
Further, the sealing ring between described corrosion monitoring assembly and top cover uses fluoroplastics encapsulant, prevents liquid
Inside infiltration pressure hull.
Further, described power module includes set of cells and electric pressure converter, and set of cells is through electric pressure converter, for system
Running voltage is provided, or is directly provided running voltage by set of cells for system.
Further, described memorizer uses SD card data storage.
Further, the size of described pressure hull according to measure system be sized so as to cylindrical shape.
Further, described pressure hull material is chosen as titanium alloy.
Further, rubber o-ring close silk helixseal is used to be connected between described pressure hull and top cover.
Further, described singlechip microcontroller uses STM32 to process chip.
Further, described corrosion monitoring component count is at least four groups.
2, the present invention also provides for a kind of deep-sea multichannel corrosion electrochemistry home position testing method, comprises the steps:
1) utilize oil reservoir logging high pressure sealing technology, by multi-channel measurement electrode system, amplifier scaling circuit and filtering/
Compensate circuit, analog-digital converter, timer clock, power module, singlechip microcontroller, memorizer, digital-to-analogue conversion
In the test space that device and channel selecting relay are sealed in pressure hull and top cover is formed, assemble and be prepared as above-mentioned one
Deep-sea multichannel corrosion electrochemistry in-situ testing device；
2) deep-sea input is carried out: device step 1) assembled is fixed on deep-sea test device and carries test for a long time, or single
Solely carry out real-time Electrochemical Detection by hawser sus-pension at different depth so that it is in multi-channel measurement electrode system expose
In the corrosive environment of deep-sea；
3) running voltage needed for utilizing self-contained power module to provide for system, singlechip microcontroller controls numeral mould
Intend transducer and generate pumping signal, select the one in multi-channel measurement electrode system to swash by channel selecting relay
Encourage, according to the kind of pumping signal, electrochemical in-situ tested device and is divided into following several mode of operation:
A, when not output drive signal, record the working electrode current potential relative to reference electrode, be OCP value；
B, when export direct current wave excitation signal time, then obtain is constant potential polarization result；
C, when sine wave output pumping signal, then obtain is ac impedance spectroscopy；
D, when export triangular wave pumping signal time, then obtain is cyclic voltammetry curve；
Amplifier scaling circuit and filtering/compensation circuit guarantee high accuracy and low phase detuning, the root of electrochemical measurement data
According to the characteristic of tested systems, adaptively selected current range, obtain optimal measurement result；Timer clock is as system reliability
Guarantee, timing system is carried out forced resetting, after device puts in place, measurement system can be held by default time and Automatic Frequency
Beginning electrochemical measurement, and by plug-in cyclical-transformation TCH test channel, each be measured after, system is automatically into dormancy mould
Formula, until the measurement that next timing instant to rear beginning is new；After measurement result is changed by analog-digital converter, automatically save
In memorizer；After device reclaims, data storage thought highly of export in computer, complete test.
Further, described power module includes set of cells and integrated switch pipe dc-dc, and set of cells is through prime collection
Become switching tube dc-dc, provide running voltage for system, and be designed with reverse protection and overpressure protection.
Further, the input degree of depth of the device that step 1) is assembled is 100 ~ 3000 meters, can be at water according to test requirements document
Under lay time of 1 ~ 6 month.
A kind of deep-sea multichannel corrosion electrochemistry in-situ testing device of the present invention and method of testing thereof, with prior art phase
Ratio, produced by provide the benefit that,
Compared with prior art, it is simple and compact for structure for the present invention；Extensibility is high, can carry out various metals or organic painting simultaneously
Electrochemical in-situ test under layer coating material abyssal environment；High pressure resistant, volume is little, lays simple with reclaimer operation, Ke Yiyu
The deep sea installations of any other form combines or carries；Low-power consumption, independent current source, long period can be carried out according to setpoint frequency
Data acquisition and storage work；By means of this invention, can go deep into effectively studying different materials under deep sea condition
Corrosion mechanism, corrosion regularity and corrosion cause, design, selection for China's deep-sea job facilities provide strong foundation.
Accompanying drawing explanation
Fig. 1 is the attachment structure principle schematic of the present invention.
In figure, 1, multi-channel measurement electrode system, 2, amplifier scaling circuit and filtering/compensations circuit, 3, simulate number
Word transducer, 4, timer clock, 5, integrated switch pipe dc-dc, 6,12 V Li-ion batteries piles, 7, pressure hull, 8,
Singlechip microcontroller, 9, SD card data storage, 10, digital analog converter, 11, channel selecting relay, 12, top cover.
Detailed description of the invention
A kind of deep-sea multichannel corrosion electrochemistry in-situ testing device of 1 couple of present invention and test side thereof below in conjunction with the accompanying drawings
Method is described in detail below.
Embodiment:
As shown in Figure 1, a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device of the present invention, its agent structure is mainly wrapped
Include pressure hull 7 and top cover 12, the test space that pressure hull 7 and top cover 12 composition are closed, and therein space is installed
Multi-channel measurement electrode system 1, amplifier scaling circuit and filtering/compensations circuit 2, analog-digital converter (APC) 3, calmly
Shi Shizhong 4, integrated switch pipe dc-dc 5,12 V Li-ion batteries piles 6, singlechip microcontroller (MCU) 8, SD card number
According to memorizer 9, digital analog converter (DAC) 10 and channel selecting relay 11.
Wherein, 12 V Li-ion batteries piles 6 are by prime integrated switch pipe dc-dc 5 and singlechip microcontroller 8
It is connected, provides 3.3 V running voltages for whole system.Singlechip microcontroller 8 uses STM32 to process chip.Timer clock 4 with
Singlechip microcontroller 8 is connected, and as the guarantee of system reliability, provides correct time to carry out forced resetting for system.System
After the relevant parameter of system is changed by analog-digital converter 3 with measurement result, use dual pathways synchronous high-speed data acquisition side
Formula, automatically saves in SD card data storage 9.After device reclaims, turn RS485 line by USB and connect the internal number of pressure hull 7
According to communication interface and host computer, data are derived, completes whole process.Device has more than four Measurement channel, digital simulation
Transducer 10 is connected to the outfan of single-chip microcomputer micro controller 8, is used for generating sine wave signal (corresponding AC impedance), triangular wave letter
Number corresponding CV measures), system to be measured encourages, when not output drive signal by straight wave signal (corresponding constant potential polarization)
Time, record the WE current potential relative to RE, be OCP value OCP, simultaneously by 24 precision analog digital converter 3 and monolithic
Machine microcontroller 8 interconnects, and is acquired signal, carries out calculating, process and storing in incoming single-chip microcomputer micro controller 8.
Apparatus of the present invention use wide input range DC-DC power source, prime design reverse protection and overpressure protection；All functions
Element uses 3.3 V single supplies to power, and step-down controller selects integrated switching tube DC-DC chip, has 200 mA outputs, 60 V
Wide input range, efficiency is up to 90%, can also keep stable output when OCL output capacitance-less；Circuit is managed in conjunction with precision voltage source
With low-power consumption analogue and digital circuit, reduce power consumption, it is possible to achieve long term monitoring function.
The built-in timer clock of apparatus of the present invention 4, safeguards system reliability, specifically refer to timing and carry out system forcing again
Position, after device puts in place, measurement system can start electrochemical measurement by default time and Automatic Frequency, each is measured
After, system is automatically into park mode, until the measurement that next timing instant to rear beginning is new.Relay is selected by inner passage
Device 11 controls, it is achieved time-controlled four-way cyclic corrosion electrochemical measurement.
Involved multi-channel measurement electrode system 1 is located in pressure hull 7, and is stretched out by top cover 12, and it includes four
The corrosion monitoring assembly that individual more parallel connects, forms more than four Measurement channel.
After involved amplifier scaling circuit and filtering/compensation circuit 2 are connected to multi-channel measurement electrode system 1
End, the front end of analog-digital converter 3, for guaranteeing the high accuracy of electrochemical measurement data and low phase detuning, according to tested
The characteristic of system, adaptively selected current range, obtain optimal measurement result.Channel selecting relay 11 is connected to numeral mould
Intend the rear end of transducer 10, the front end of multi-channel measurement electrode system 1, be used for multi-channel measurement electrode system 1 to select a side
Formula carries out break-make.
It is the Titanium Alloy Design manufacture of 30 MPa that the pressure hull 7 of apparatus of the present invention uses pressure, the size of pressure hull 7
It is sized so as to internal diameter φ 125 mm according to the system of measurement, the cylindrical shape of wall thickness 5 mm, use rubber o-ring close silk spiral even
Connecing, its high pressure sealing design guarantees device pressure ＞ 30 MPa of energy, heatproof ＞ 120 DEG C (ocean floor heated fluid stream).Install on top cover 12
Having the cylindrical corrosion monitoring assembly of φ 25 mm, long 50mm of more than four, it includes the electricity being exposed in the corrosive environment of deep-sea
Resistance probe and three electrode probes.Resistance probe includes sensing element and sensing element, and its connected mode is existing common knowledge,
This repeats no more.Three electrode probes include working electrode, reference electrode and to electrode, and working electrode selects metal to be measured or organic
Coating coating material, reference electrode is Ag/AgCl, is Pt silk to electrode.Three electrode probes and resistance probe sensing element etc.
All use PEEK fire resistant special type material injection molding.Sealing ring between corrosion monitoring assembly and top cover 12 uses fluoroplastics to seal
Material, prevents liquid from penetrating into pressure hull 7 internal.
When the enforcement of the present invention carries out deep-sea input, can be fixed on deep-sea test device carry for a long time test, or logical
The mode crossing hawser suspention carries out electrochemical monitoring the most in real time at different depth, easy and simple to handle.The present embodiment is designed with four
Lane testing is popped one's head in, and its autgmentability is high, can increase probe quantity according to actual needs, and operation principle does not changes；It is accurate
Electric power management circuit and analogue and digital circuit all use low power dissipation design, it is possible to achieve the electrochemical in-situ test of 1 ~ 6 month
Work.
The deep-sea multichannel corrosion electrochemistry home position testing method of the present embodiment, comprises the steps:
1) oil reservoir logging high pressure sealing technology is utilized, by multi-channel measurement electrode system 1, amplifier scaling circuit and filter
Ripple/compensation circuit 2, analog-digital converter 3, timer clock 4, integrated switch pipe dc-dc 5,12 V lithium ion battery
Group 6, singlechip microcontroller 8, SD card data storage 9, digital analog converter 10 and channel selecting relay 11 are sealed in
In the test space that pressure hull 7 and top cover 12 are formed, assemble and be prepared as deep-sea multichannel corrosion electrochemistry in-situ test dress
Put；
2) deep-sea input is carried out: device step 1) assembled is fixed on deep-sea test device and carries test for a long time, or single
Solely carry out real-time electrochemical monitoring by hawser sus-pension at different depth so that it is in multi-channel measurement electrode system 1 sudden and violent
Be exposed in the corrosive environment of deep-sea, throw in the degree of depth be 100 ~ 3000 meters, according to test requirements document can lay under water 1 ~ 6 month time
Between；
3) 12 V Li-ion batteries piles 6 are through prime integrated switch pipe dc-dc 5, provide running voltage for system, and design
There are reverse protection and overpressure protection, singlechip microcontroller 8 to control digital analog converter 10 and generate pumping signal, pass through passage
Selective relay 11 selects the one in multi-channel measurement electrode system 1 to encourage, according to the kind of pumping signal, by electrification
Learn in-situ testing device and be divided into following several mode of operation:
A, when not output drive signal, record the working electrode current potential relative to reference electrode, be OCP value；
B, when export direct current wave excitation signal time, then obtain is constant potential polarization result；
C, when sine wave output pumping signal, then obtain is ac impedance spectroscopy；
D, when export triangular wave pumping signal time, then obtain is cyclic voltammetry curve；
Amplifier scaling circuit and filtering/compensation circuit 2 guarantee high accuracy and low phase detuning, the root of electrochemical measurement data
According to the characteristic of tested systems, adaptively selected current range；Timer clock 4 is as the guarantee of system reliability, and timing is to system
Carrying out forced resetting, after device puts in place, measurement system can start electrochemical measurement by default time and Automatic Frequency, and leads to
Cross plug-in cyclical-transformation TCH test channel, each be measured after, system is automatically into park mode, until during timing next time
New measurement is started after being carved into；After measurement result is changed by analog-digital converter 2, automatically save in SD card data storage
In 9；After device reclaims, the data in SD card data storage 9 are exported in computer, complete test.
A kind of deep-sea multichannel its processing and fabricating of corrosion electrochemistry in-situ testing device of the present invention is the most simple and convenient, presses
Processing and fabricating shown in Figure of description.
Claims (10)
1. a deep-sea multichannel corrosion electrochemistry in-situ testing device, it is characterised in that its agent structure includes pressure hull
And the test space that top cover, pressure hull and top cover composition are closed, and space is installed multi-channel measurement electrode body therein
System, amplifier scaling circuit and filtering/compensation circuit, analog-digital converter, timer clock, power module, single-chip microcomputer are micro-
Controller, memorizer, digital analog converter and channel selecting relay, wherein,
Described power module is connected with singlechip microcontroller, the running voltage needed for providing for system；
Described multi-channel measurement electrode system is located in pressure hull, and stretched out by top cover, and it includes multiple being connected in parallel
Corrosion monitoring assembly；
Described amplifier scaling circuit and filtering/compensation are electrically connected to the rear end of multi-channel measurement electrode system, simulate number
The front end of word transducer, for adaptively selected range, it is achieved the range switching during system electrochemical measurement；
Described analog-digital converter interconnects with singlechip microcontroller, for signal is acquired, and incoming single-chip microcomputer micro-control
Carry out in device calculating, process and storing；
Described timer clock is connected with singlechip microcontroller, provides correct time to carry out forced resetting for system, system
Relevant parameter and measurement result are saved in memorizer, and communicate with host computer through communication interface；
Described digital analog converter is connected to the outfan of single-chip microcomputer micro controller, is used for generating multiple pumping signal to body to be measured
System encourages, and according to the kind of pumping signal, carries out electrochemical in-situ test；
Described channel selecting relay is connected to the rear end of digital analog converter, the front end of multi-channel measurement electrode system, uses
In multi-channel measurement electrode system is carried out break-make to select a mode.
A kind of deep-sea the most according to claim 1 multichannel corrosion electrochemistry in-situ testing device, it is characterised in that described
Corrosion monitoring assembly includes resistance probe and three electrode probes being exposed in the corrosive environment of deep-sea, and three electrode probes include work
Electrode, reference electrode and to electrode, working electrode selects metal to be measured or organic coating coating material.
A kind of deep-sea the most according to claim 2 multichannel corrosion electrochemistry in-situ testing device, it is characterised in that described
Three electrode probes and resistance probe sensing element use PEEK fire resistant special type material injection molding, form the corrosion of integration
Monitoring assembly.
4., according to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in claim 1 or 2 or 3, its feature exists
In, the sealing ring between described corrosion monitoring assembly and top cover uses fluoroplastics encapsulant.
5., according to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in claim 1 or 2 or 3, its feature exists
In, described power module includes set of cells and electric pressure converter, and set of cells, through electric pressure converter, provides running voltage for system,
Or directly provided running voltage by set of cells for system.
6., according to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in claim 1 or 2 or 3, its feature exists
In, the size of described pressure hull is sized so as to cylindrical shape according to the system of measurement.
7., according to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in claim 1 or 2 or 3, its feature exists
In, use rubber o-ring close silk helixseal to be connected between described pressure hull and top cover.
8., according to a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in claim 1 or 2 or 3, its feature exists
In, described singlechip microcontroller uses STM32 to process chip.
9. a deep-sea multichannel corrosion electrochemistry home position testing method, it is characterised in that comprise the steps:
1) utilize oil reservoir logging high pressure sealing technology, by multi-channel measurement electrode system, amplifier scaling circuit and filtering/
Compensate circuit, analog-digital converter, timer clock, power module, singlechip microcontroller, memorizer, digital-to-analogue conversion
In the test space that device and channel selecting relay are sealed in pressure hull and top cover is formed, assemble and be prepared as claim 1
Or a kind of deep-sea multichannel corrosion electrochemistry in-situ testing device described in 2 or 3；
2) deep-sea input is carried out: device step 1) assembled is fixed on deep-sea test device and carries test for a long time, or single
Solely carry out real-time Electrochemical Detection by hawser sus-pension at different depth so that it is in multi-channel measurement electrode system expose
In the corrosive environment of deep-sea；
3) running voltage needed for utilizing self-contained power module to provide for system, singlechip microcontroller controls numeral mould
Intend transducer and generate pumping signal, select the one in multi-channel measurement electrode system to swash by channel selecting relay
Encourage, according to the kind of pumping signal, electrochemical in-situ tested device and is divided into following several mode of operation:
A, when not output drive signal, record the working electrode current potential relative to reference electrode, be OCP value；
B, when export direct current wave excitation signal time, then obtain is constant potential polarization result；
C, when sine wave output pumping signal, then obtain is ac impedance spectroscopy；
D, when export triangular wave pumping signal time, then obtain is cyclic voltammetry curve；
Amplifier scaling circuit and filtering/compensation circuit guarantee high accuracy and low phase detuning, the root of electrochemical measurement data
According to the characteristic of tested systems, adaptively selected current range；System is entered by timer clock as the guarantee of system reliability, timing
Row forced resetting, after device puts in place, measurement system can start electrochemical measurement by default time and Automatic Frequency, and passes through
Plug-in cyclical-transformation TCH test channel, each be measured after, system automatically into park mode, until next time timing instant
To the measurement that rear beginning is new；After measurement result is changed by analog-digital converter, automatically save in memorizer；Device reclaims
After, the data in memorizer are exported in computer, completes test.
A kind of deep-sea the most according to claim 9 multichannel corrosion electrochemistry home position testing method, it is characterised in that institute
Stating power module and include set of cells and integrated switch pipe dc-dc, set of cells is changed through prime integrated switch pipe DC-DC
Device, provides running voltage for system, and is designed with reverse protection and overpressure protection.
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