CN209894665U - Remote-transmission monitoring galvanic corrosion meter - Google Patents
Remote-transmission monitoring galvanic corrosion meter Download PDFInfo
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- CN209894665U CN209894665U CN201920625308.3U CN201920625308U CN209894665U CN 209894665 U CN209894665 U CN 209894665U CN 201920625308 U CN201920625308 U CN 201920625308U CN 209894665 U CN209894665 U CN 209894665U
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Abstract
The utility model provides a galvanic corrosion meter that can teletransmission monitoring belongs to electrochemistry technical field. The corrosion meter comprises a data acquisition structure, a data transmission structure, a working mode selection key, a range selection knob switch, a digital display meter, a zero setting knob, an electrode input and the like. The instrument comprises a voltage transformation circuit, an integrated amplification circuit based on zero resistance current measurement and a high input impedance voltage following principle, a data acquisition structure and a data transmission structure. The front panel is provided with a working mode selection key, a range selection knob switch, a digital display meter, a zero setting knob, and the back panel is provided with a power supply and a power supply fuse. The galvanic couple corrosion meter has the advantages of novel structure, good stability, firmness, reliability, large measurement range, high measurement precision, long service life, capability of realizing real-time checking of data at a mobile phone end through remote transmission and the like.
Description
Technical Field
The utility model relates to the technical field of electrochemistry, especially indicate a galvanic couple corrosion meter that can teletransmission monitoring.
Background
In modern society, metal materials are widely used, and research on corrosion and protection of metal materials is more important. Two or more metals in electrolyte solution, or the same metal in different state or different composition electrolyte solution, directly contacting or forming loop through metal conductor in the structure, so as to form the galvanic cell. Because the electrode potentials of various metals are different, potential difference exists, in the galvanic couple pair, the metal with the negative original corrosion potential becomes the anode of the galvanic couple pair, so that the dissolution speed is increased, and the local corrosion of the anode metal is caused when dissimilar metals contact; the metal with the higher corrosion potential in the couple becomes the cathode in the couple and usually corrodes more slowly than it does not. This corrosion phenomenon caused by the construction of macroscopic galvanic cells is called galvanic corrosion. The basic links of galvanic corrosion include a cathode, an anode, an electrolyte and a conductor, wherein any link disappears and the galvanic corrosion stops.
Galvanic corrosion is widely used in ships, oil and gas, aviation, building industry and medical instruments, and often induces and accelerates stress corrosion, pitting corrosion, crevice corrosion and other various types of local corrosion accelerating equipment damage.
However, data of the conventional galvanic corrosion meter can only be checked through the data line connected to the computer, and with the development of the mobile internet, the mobile terminal device is in a rapid development situation. Among them, hardware devices represented by mobile phones are presented to the world in a blowout state. If the monitored data can be checked in real time at the mobile phone end, great convenience is brought to the testing personnel. Meanwhile, the mobile phone end can receive test data of a plurality of places simultaneously, and the data can be compared and analyzed by testers more conveniently. Therefore, the research and development of the function of viewing data in real time at the mobile phone end on the basis of the traditional galvanic couple corrosion meter have very important significance.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a galvanic corrosion meter of teletransmission monitoring measures galvanic current and galvanic potential when measuring metal galvanic corrosion, and data can realize looking over the function of data in real time at the cell-phone end through teletransmission.
The corrosion meter comprises a data acquisition structure, a data transmission structure, a working mode selection button, a range selection knob switch, a digital display meter, a zero setting knob and an electrode input, wherein the data acquisition structure and the data transmission structure are positioned inside the corrosion meter, the working mode selection button, the range selection knob switch, the digital display meter, the zero setting knob and the electrode input are positioned on a front panel of the corrosion meter, and a power supply fuse are arranged on a rear panel of the corrosion meter.
The data acquisition structure comprises a time sequence control module, a voltage AD acquisition module and a sampling and holding module, wherein the time sequence control module, the voltage AD acquisition module and the sampling and holding module are connected in parallel to an embedded CPU.
The data transmission structure is internally provided with embedded WIFI which is connected with an embedded CPU.
The experimental test data collected by the data collection structure is transmitted to an external computer processing system through the data transmission structure.
An operation mode selection key for selecting an operation mode, comprisingk1Key, Ek2Key, EgBond and IgThe range of the keys and the range of the range selection knob switch is 200 mA.
The digital display table is three-position and half-display, the maximum display value 1999, the number is dark when the measured value exceeds the display range, and the display can be displayed again by changing the measuring range.
The electrode input is externally connected with a working electrode and a reference electrode.
The power fuse (9) is a 0.2A power fuse.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
the galvanic couple corrosion meter has the advantages of novel structure, good stability, firmness, reliability, large measurement range, high measurement precision, long service life, capability of realizing real-time checking of data at a mobile phone end through remote transmission and the like. The method is mainly applied to the aspects of determining galvanic corrosion behavior of dissimilar metal contact, measuring sacrificial anode performance, measuring effectiveness of a cathodic protection system, detecting corrosion of factory equipment, equipping a cathodic protection measuring vehicle, evaluating corrosion resistance of metal, checking environmental corrosion, corrosion research, corrosion failure analysis, corrosion prevention design and the like.
Drawings
FIG. 1 is a schematic diagram of a galvanic corrosion meter capable of remote monitoring according to the present invention;
FIG. 2 is a schematic diagram of the front panel structure of the remote monitorable galvanic corrosion meter of the present invention;
fig. 3 is a schematic diagram of the structure of the back panel of the galvanic corrosion meter capable of remote monitoring according to the present invention.
Wherein: 1-a data acquisition structure; 2-a data transmission structure; 3-a working mode selection key; 4-range selection knob switch; 5-digital display meter; 6-zero knob; 7-electrode input; 8-a power supply; 9-power supply fuse.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a galvanic corrosion meter that can teletransmission monitoring.
As shown in fig. 1, fig. 2 and fig. 3, the galvanic corrosion meter includes a data acquisition structure 1, a data transmission structure 2, a working mode selection button 3, a range selection knob switch 4, a digital display meter 5, a zero setting knob 6 and an electrode input 7, wherein the data acquisition structure 1 and the data transmission structure 2 are located inside the galvanic corrosion meter, the working mode selection button 3, the range selection knob switch 4, the digital display meter 5, the zero setting knob 6 and the electrode input 7 are located on a front panel of the galvanic corrosion meter, and a power supply 8 and a power supply fuse 9 are arranged on a rear panel of the galvanic corrosion meter.
The technical scheme of the galvanic corrosion meter is as follows:
by using the galvanic corrosion meter, the current flowing between dissimilar metal electrodes (such as an electrode I and an electrode II) in an electrolyte can be measured, namely the galvanic current Ig of a galvanic couple pair; the respective natural corrosion potentials Ek1 and Ek2 of the galvanic couple pair formed at the end of the dissimilar metal electrode can also be measured, as well as the galvanic potential Eg of the formed galvanic couple pair relative to the reference electrode. Technically, zero resistance current measurement and an integrated amplification circuit based on a high input impedance voltage following principle are mainly adopted for realizing, galvanic couple voltage and galvanic couple current during metal corrosion are collected in real time through an internal embedded single chip microcomputer STM32F429, the measured galvanic couple voltage and galvanic couple current are displayed through AD processing and analysis and serve as voltage and current values, and the function of real-time checking at a mobile phone end is realized through remote transmission of tested data during metal corrosion processing through AD.
During actual measurement, the power supply is switched on, the power switch is turned on, and the instrument is preheated for 10 minutes. The electrode is temporarily not connected to the terminal of the electrode input 7. The range selection knob switch 4 is arranged at a position of 20 muA, and when Ig is pressed, the instrument should display 0.000; such as a potentiometer with a zero adjustment knob 6 on the front panel of the deviation adjustment instrument.
During measurement, the working electrode and the reference electrode are respectively connected with the binding posts of the instrument by using the electrode input lead. Wherein the yellow line is connected with the working electrode I, the green line is connected with the working electrode II, and the red line is connected with the reference electrode III.
Pressing down Ek1Key, range selection knob switch 4 is turned to "2V" and digital display 5 shows the natural corrosion potential (but opposite sign) of working electrode III (red cartridge) relative to the reference electrode.
Pressing down Ek2The key, range selection knob switch 4 is turned to "2V" and the numerical display 5 shows the natural corrosion potential (but opposite sign) of the working electrode I (black cartridge) relative to the reference electrode.
Pressing down EgThe key and range selection knob switch 4 is arranged at the position of 2V, and the digital display table 5 shows that the working electrode I and the working electrode II are coupled to form the circuitThe galvanic couple of (b) is referred to as the mixed potential, relative to the galvanic couple potential of the reference electrode (but of opposite sign).
Press down IgA key and a range selection knob switch 4 are arranged at a proper current range, and at the moment, a digital display table 5 shows a galvanic couple current Ig which passes between a working electrode I and a working electrode II in galvanic couple centering; in order to prevent the current overload, the maximum current gear (200mA) is firstly adjusted for testing, and then the current range is gradually reduced in sequence until the current range is proper.
The output range of the voltage and the current during measurement, electrode potential signals Ek1, Ek2 or Eg is +/-1.999V; the couple current Ig signal is converted into a voltage signal through a resistor in the instrument and is output, and the output range of each gear is 0-1.999V. The test data can be directly read through the digital display table 5, and can also be subjected to data interactive transmission processing with a computer system through a WAFI module embedded in an embedded single chip microcomputer STM32F4 single chip microcomputer system, and can be monitored and processed in real time through a mobile phone end.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A remote monitorable galvanic corrosion meter, comprising: the corrosion meter comprises a data acquisition structure (1), a data transmission structure (2), a working mode selection button (3), a range selection knob switch (4), a digital display meter (5), a zero setting knob (6) and an electrode input (7), wherein the data acquisition structure (1) and the data transmission structure (2) are positioned inside the corrosion meter, the working mode selection button (3), the range selection knob switch (4), the digital display meter (5), the zero setting knob (6) and the electrode input (7) are positioned on a front panel of the corrosion meter, and a power supply (8) and a power supply fuse (9) are arranged on a rear panel of the corrosion meter.
2. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the data acquisition structure (1) comprises a time sequence control module, a voltage AD acquisition module and a sampling and holding module, wherein the time sequence control module, the voltage AD acquisition module and the sampling and holding module are connected in parallel to an embedded CPU.
3. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the data transmission structure (2) is internally provided with embedded WIFI which is connected with an embedded CPU.
4. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the experimental test data collected by the data collection structure (1) are transmitted to an external computer processing system through the data transmission structure (2).
5. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the working mode selection key (3) is used for selecting a working mode and comprises an Ek1Key, Ek2Key, EgBond and IgThe range of the keys and the range of the range selection knob switch (4) is 200 mA.
6. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the digital display meter (5) is three-position and half-display, the maximum display value 1999, when the measured value exceeds the display range, the number is dark, and the measurement range can be displayed again by changing the measurement range.
7. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the electrode input (7) is externally connected with a working electrode and a reference electrode.
8. The remotely monitorable galvanic corrosion meter according to claim 1 and wherein: the power supply fuse (9) is a 0.2A power supply fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625308.3U CN209894665U (en) | 2019-04-30 | 2019-04-30 | Remote-transmission monitoring galvanic corrosion meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625308.3U CN209894665U (en) | 2019-04-30 | 2019-04-30 | Remote-transmission monitoring galvanic corrosion meter |
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| Publication Number | Publication Date |
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| CN209894665U true CN209894665U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920625308.3U Expired - Fee Related CN209894665U (en) | 2019-04-30 | 2019-04-30 | Remote-transmission monitoring galvanic corrosion meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092355A (en) * | 2021-04-06 | 2021-07-09 | 上海建冶科技股份有限公司 | Detection apparatus for real-time detection metal corrosion rate |
-
2019
- 2019-04-30 CN CN201920625308.3U patent/CN209894665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092355A (en) * | 2021-04-06 | 2021-07-09 | 上海建冶科技股份有限公司 | Detection apparatus for real-time detection metal corrosion rate |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20210430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |