Corrosion strength detection sensor and detection method

Abstract

The invention discloses a corrosion strength detection sensor and a detection method. The sensor comprises a test resistor, a signal acquisition module and a signal transmission module. The test circuit comprises a test resistor and a contrast resistor, at least one surface of the test resistor is used for being in contact with the atmospheric environment, and a set corresponding relation exists between resistance parameters of the contrast resistor and initial resistance parameters of the test resistor; the signal acquisition module is used for acquiring a current electric signal output by the test circuit, and the current electric signal is used for reflecting a current resistance difference between the test resistor and the contrast resistor; the signal transmission module is used for uploading the current electric signal to a control device outside the sensor, so that the control device determines the current corrosion intensity of the test resistor in the atmospheric environment according to the current electric signal. The detection efficiency can be improved while the accuracy of the measurement result is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of environmental monitoring, and in particular, relates to a corrosion intensity detection sensor and a detection method. Background Art

[0002] When a metal device is placed in an atmospheric environment containing corrosive gases, corrosion damage may occur to the metal device over time. Therefore, it is necessary to monitor the corrosion intensity of the metal device in the atmospheric environment.

[0003] In the related art, the corrosion intensity is mainly determined by measuring the mass change of the metal hanging piece over a period of time. However, this solution requires the removal of corrosion products before performing weight loss measurement, which may cause deviations in the measurement results during the operation. Summary of the invention

[0004] The embodiments of the present application provide a corrosion intensity detection sensor and a detection method, thereby improving the detection efficiency while ensuring the accuracy of the measurement results, at least to a certain extent.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] A first aspect of the present application provides a corrosion intensity detection sensor, comprising:

[0007] A test circuit, the test circuit comprising a test resistor and a reference resistor connected to each other, at least one side of the test resistor being in contact with the atmospheric environment, the reference resistor being sealed in an insulator, and a resistance parameter of the reference resistor having a set corresponding relationship with an initial resistance parameter of the test resistor;

[0008] A signal acquisition module connected to the test circuit, the signal acquisition module is used to collect a current electrical signal output by the test circuit, the current electrical signal is used to reflect the current resistance difference between the test resistor and the reference resistor;

[0009] A signal transmission module connected to the signal acquisition module, the signal transmission module is used to upload the current electrical signal to a control device outside the sensor, so that the control device determines the current corrosion intensity of the test resistor in the atmospheric environment according to the current electrical signal.

[0010] Optionally, the test circuit comprises a Wheatstone bridge, and the Wheatstone bridge comprises the test resistor and the reference resistor.

[0011] Optionally, the test resistor includes an insulating shell with an opening on the surface and a metal resistor block located in the insulating shell, the corrosion surface of the metal resistor block facing the opening is used to contact the atmospheric environment, and the measuring surface of the metal resistor block is connected to the reference resistor.

[0012] Optionally, the metal resistance block is in a square shape, the length side of the metal resistance block is greater than the height side and the width side, and the surface to be corroded and the measuring surface share the same length side;

[0013] The surface to be etched includes two length sides and two width sides, and the measuring surface includes two height sides and two width sides.

[0014] Optionally, the length side has a value range of 10 mm to 20 mm, and the width side and the height side have a value range of 1 mm to 2 mm.

[0015] Optionally, the metal resistor block is bent in a spiral shape and arranged in the insulating shell.

[0016] A second aspect of the present application provides a corrosion intensity detection method, which is executed by a control device, wherein the control device is communicatively connected to the corrosion intensity detection sensor according to any one of the first aspects, and the method comprises:

[0017] Acquire the current electrical signal uploaded by the signal transmission module of the corrosion intensity detection sensor;

[0018] According to the current electrical signal, based on a set resistance calculation model, a current resistance value of the test resistor is calculated;

[0019] According to the current resistance value, based on a set corrosion intensity calculation model, the current corrosion intensity of the test resistor in the atmospheric environment is calculated.

[0020] Optionally, the current electrical signal includes a current measurement voltage and a current measurement current of a Wheatstone bridge, and the current resistance value of the test resistor is calculated based on the current electrical signal and a set resistance calculation model, including:

[0021] According to the current measurement voltage and the current measurement current, a resistance calculation model set according to Kirchhoff's law is used to calculate the current resistance value of the test resistor.

[0022] Optionally, the calculating, according to the current resistance value and based on a set corrosion intensity calculation model, the current corrosion intensity of the test resistor in the atmospheric environment comprises:

[0023] Obtain the initial resistance value and height edge value of the metal resistor block;

[0024] Based on the set corrosion intensity calculation model, a first ratio of the difference between the current resistance value and the initial resistance value to the current resistance value is obtained, and the first ratio is weighted based on the height edge value to obtain the current corrosion intensity of the test resistor in the atmospheric environment.

[0025] Optionally, it also includes:

[0026] Obtaining a target length of time after the corrosion intensity detection sensor is deployed in the atmospheric environment;

[0027] A second ratio between the current corrosion intensity and the target duration is obtained, and the second ratio is used as the current corrosion rate of the test resistor in the atmospheric environment.

[0028] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by any method described in the first aspect.

[0029] According to a fourth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by any of the methods described in the first aspect.

[0030] One or more technical solutions provided by the embodiments of the present invention achieve at least the following technical effects or advantages:

[0031] The corrosion intensity detection sensor of the present application includes: a test circuit, the test circuit includes a test resistor and a reference resistor connected to each other, at least one side of the test resistor is used to contact the atmospheric environment, and the resistance parameter of the reference resistor has a set corresponding relationship with the initial resistance parameter of the test resistor; a signal acquisition module connected to the test circuit, the signal acquisition module is used to acquire the current electrical signal output by the test circuit, and the current electrical signal is used to reflect the current resistance difference between the test resistor and the reference resistor; a signal transmission module connected to the signal acquisition module, the signal transmission module is used to upload the current electrical signal to the control device outside the sensor, so that the control device determines the current corrosion intensity of the test resistor in the atmospheric environment according to the current electrical signal. Therefore, the present application can directly output the corrosion intensity without additional operation, avoiding the measurement error caused by operations such as moving the sensor during the measurement process, while ensuring the accuracy of the measurement results, improving the detection efficiency.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0034] Figure 1 A structural block diagram of a corrosion intensity detection sensor according to an embodiment of the present application is shown;

[0035] Figure 2 A circuit schematic diagram of a Wheatstone bridge according to an embodiment of the present application is shown;

[0036] Figure 3 A schematic diagram of the side view structure of a test resistor according to an embodiment of the present application is shown;

[0037] Figure 4 A schematic diagram of the top view of the test resistor according to an embodiment of the present application is shown;

[0038] Figure 5 A schematic diagram showing the structure of a metal resistor block in an embodiment of the present application is shown;

[0039] Figure 6 A flowchart of corrosion intensity detection according to an embodiment of the present application is shown;

[0040] Figure 7 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0043] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0044] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0045] It should also be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those shown or described.

[0046] The corrosion of metal materials in the atmospheric environment will cause damage to metal devices, resulting in economic losses. Among them, the factors that affect the corrosion intensity of metal materials in the atmospheric environment include but are not limited to temperature, humidity, chloride ion concentration, SO2 concentration, NO2 concentration, etc. The corrosion intensity of metals in different environments may be different. Therefore, it is necessary to quantitatively analyze the corrosion intensity of metals in different environments to provide strong data support for the subsequent preparation of metal devices and reduce economic losses.

[0047] Traditional methods for testing atmospheric corrosion intensity include, but are not limited to, outdoor exposure tests and indoor accelerated tests. Among them, outdoor exposure tests usually use standard hanging plates to collect corrosion data in natural environments. This method can truly reflect the amount of corrosion in a natural environment within a specified period of time, but the cycle is long, and data is usually collected in units of years. The amount of data is small and scattered. Indoor accelerated tests can quickly evaluate the corrosion resistance of metal materials and reflect the corrosion rate to a certain extent, but because they are separated from the actual natural environment, their reliability and relevance need further research and cannot be directly used for corrosion monitoring.

[0048] With the development of technology, some technologies determine the corrosion intensity by measuring the mass change of metal coupons over a period of time. However, this scheme requires the removal of corrosion products before weight loss measurement. The operation may cause deviations in the measurement results, such as errors caused by factors such as movement and the removal of corrosion products.

[0049] Based on the above, the first aspect of the embodiment of the present application provides a corrosion intensity detection sensor, which is expected to be able to directly output the corrosion intensity without additional operation to a certain extent, avoiding measurement errors caused by operations such as moving the sensor during the measurement process, while ensuring the accuracy of the measurement results and improving the detection efficiency.

[0050] See also Figure 1 , shows a structural block diagram of the corrosion intensity detection sensor of the embodiment of the present application. Figure 1 As shown, the first aspect of the present application provides a corrosion intensity detection sensor, including: a test circuit, the test circuit including a test resistor and a reference resistor connected to each other, at least one side of the test resistor being used to contact the atmospheric environment, the reference resistor being sealed in an insulator, and the resistance parameter of the reference resistor having a set corresponding relationship with the initial resistance parameter of the test resistor; a signal acquisition module connected to the test circuit, the signal acquisition module being used to acquire a current electrical signal output by the test circuit, the current electrical signal being used to reflect the current resistance difference between the test resistor and the reference resistor; a signal transmission module connected to the signal acquisition module, the signal transmission module being used to upload the current electrical signal to a control device outside the sensor, so that the control device determines the current corrosion intensity of the test resistor in the atmospheric environment according to the current electrical signal.

[0051] It can be understood that the atmospheric environment of the embodiments of the present application can be any environment with corrosive gases, such as coastal areas, cities, villages, suburbs, factories, fields, cars, high-rise buildings, electric towers, oil pipelines, etc. By deploying sensors in a certain atmospheric environment, the metal corrosion intensity in that environment can be measured.

[0052] It should be noted that the resistance of a conductor to electric current is called the resistance of the conductor. This application sets a test resistor and a reference resistor, exposes the test resistor to the atmosphere, and seals the reference resistor in an insulator, so that the difference in resistance between the two can be used to reflect the corrosion intensity of the test resistor in the atmosphere. Since at least one side of the test resistor is in contact with the atmosphere, the detected resistance change is caused by the real atmosphere, which can accurately reflect the corrosion intensity of the metal in the atmosphere; the signal acquisition module sends the collected current electrical signal to the control device at any time, so that the current corrosion intensity of the test resistor in the atmosphere can be determined according to the current electrical signal, shortening the detection cycle; in addition, the corrosion intensity can be directly output without additional operation, avoiding measurement errors caused by operations such as moving sensors during the measurement process, while ensuring the accuracy of the measurement results, improving the detection efficiency.

[0053] See also Figure 2 , shows a circuit schematic diagram of a Wheatstone bridge according to an embodiment of the present application.

[0054] In some embodiments, the test circuit comprises a Wheatstone bridge, wherein the Wheatstone bridge comprises the test resistor and the reference resistor, wherein the initial parameters of the test resistor may be completely the same as those of the reference resistor.

[0055] It is understandable that the resistance of the test resistor and the reference resistor is related to their geometric dimensions, such as length, width, and height. However, after the geometric dimensions of the test resistor change due to corrosion, its resistance also changes accordingly. However, as a conductor, the test resistor has a very small resistance value. For example, the resistance value of a metal resistor block with a size of 10mm (length) × 1mm (width) × 1mm (height) is only 1mΩ, which is generally much smaller than the protection resistor (10Ω) of the circuit, and its change is not easy to distinguish in the circuit. In order to identify the change in the resistance value of this tiny resistor, the embodiment of the present application utilizes the principle of the Wheatstone bridge. By measuring the bridge current caused by the resistance difference between the test resistor and the reference resistor to calculate the resistance difference between the two resistors, the resistance of the test resistor can be calculated, thereby realizing the measurement of the corrosion rate and then realizing the quantification of the corrosion intensity.

[0056] like Figure 2 As shown, R x represents the test resistor, R0 represents the reference resistor, r represents the standard resistor of the Wheatstone bridge, l1 represents the current flowing through the reference resistor R0, and l-l1 represents the current flowing through the test resistor R x The current, l-l1+l g represents the current flowing through the first standard resistor r, l1-l g represents the current flowing through the second standard resistor r, l grepresents the measured current measured by ammeter G, l represents the current on the main line measured by ammeter A, U g The resistance value Rx of the test resistor is measured based on the Wheatstone bridge, and the specific principle will be explained below.

[0057] See also Figure 3-Figure 6 , Figure 3 A schematic diagram of the side view structure of a test resistor according to an embodiment of the present application is shown; Figure 4 A schematic diagram of the top view of the test resistor according to an embodiment of the present application is shown; Figure 5 A schematic structural diagram of a metal resistor block according to an embodiment of the present application is shown.

[0058] In some embodiments, Figure 3 and Figure 4 As shown, the test resistor includes an insulating shell 1 with an opening on the surface and a metal resistor block 2 located in the insulating shell 1, the corrosion surface of the metal resistor block 2 facing the opening is used to contact the atmospheric environment, and the measuring surface of the metal resistor block 2 is connected to the reference resistor, thereby, only one side of the metal resistor block can be in contact with the atmospheric environment, so as to facilitate the subsequent quantification of the resistance change of the metal resistor block.

[0059] In some embodiments, the reference resistor may be a metal resistor block that is the same as the test resistor and is sealed in an insulating housing, thereby serving as a reference for the initial resistance parameters of the test resistor to facilitate subsequent resistance value change calculations.

[0060] It can be understood that in order to facilitate quantification of the resistance change and corrosion intensity of the metal resistor block, in some embodiments, such as Figure 5 As shown, the shape of the metal resistor block is square, the length side L of the metal resistor block is greater than the height side b and the width side a, and the surface to be corroded and the measuring surface share the same length side L; the surface to be corroded includes two length sides L and two width sides a, and the measuring surface includes two height sides b and two width sides a.

[0061] It should be noted that when the shape of the metal resistor block is a square, and the surface to be corroded and the measuring surface share the same length side L, the corrosion intensity can be determined based on the height side of the square and the change in resistance value, which simplifies the calculation and improves the detection efficiency. The principle of determining the corrosion intensity based on the height side of the square and the change in resistance value will be explained below.

[0062] In some embodiments, the length side has a value range of 10mm-20mm, and the width side and the height side have a value range of 1mm-2mm. Thus, the length side is set much larger than the width side and the height side, so that the resistance of the metal resistor block can be larger and the resistance change can be observed more easily. In addition, the length side, the height side and the width side are all in the millimeter level, so the sensor is small in size, easy to carry, and easy to deploy in various environments.

[0063] In some embodiments, Figure 4 As shown, the metal resistor block 2 is spirally bent and arranged in the insulating housing 1, so as to further reduce the space occupied by the metal resistor block 2 in the insulating housing 1 and further reduce the volume of the sensor.

[0064] In some embodiments, the sensor further includes an ID chip for recording and transmitting the original information and time information of the sensor, wherein the original information includes but is not limited to the ID information of the sensor (for easy identification by the control device), the initial resistance parameters of the test resistor, the resistance parameters of the reference resistor, the resistor material, the resistor size and other information; the time information includes but is not limited to the start time, elapsed time, current time and other time information of the sensor being placed in the atmospheric environment. Thus, the subsequent control device can calculate the corrosion intensity corresponding to the sensor based on the information recorded in the ID chip.

[0065] In some embodiments, the sensor further includes a signal processing module, which includes but is not limited to an amplification circuit, an integration circuit, a signal conditioning circuit, an analog-to-digital conversion circuit, and a signal synchronization circuit, etc., for gradually amplifying, integrating, signal conditioning, digital-to-analog conversion, and signal synchronization of the current electrical signal collected by the signal acquisition module, so as to improve the readability of the current electrical signal. The design of each circuit in the signal processing module can refer to the relevant technology and will not be repeated here.

[0066] See also Figure 6 , showing a flow chart of corrosion intensity detection according to an embodiment of the present application.

[0067] like Figure 6 As shown, the second aspect of the present application provides a corrosion intensity detection method, which is executed on a control device, and the control device is communicatively connected to the corrosion intensity detection sensor described in any one of the first aspects. It can be understood that the control device can be communicatively connected to one or more corrosion intensity detection sensors, and multiple corrosion intensity detection sensors can be deployed in different atmospheric environments. Thus, the control device can simultaneously monitor the corrosion intensity of the sensors in different atmospheric environments to improve the monitoring efficiency.

[0068] In some embodiments, the method includes but is not limited to:

[0069] Step S1. Obtaining the current electrical signal uploaded by the signal transmission module of the corrosion intensity detection sensor;

[0070] It is understandable that the current electrical signal may be a signal processed by the signal processing module of the sensor, so that the readability of the current electrical signal is better. In addition, the control device may also obtain the original information and time information of the sensor from the ID chip to perform targeted detection of the corrosion intensity of the sensor.

[0071] Step S2. According to the current electrical signal, based on a set resistance calculation model, calculate the current resistance value of the test resistor;

[0072] In some embodiments, the current electrical signal includes a current measurement voltage and a current measurement current of a Wheatstone bridge, and the current resistance value of the test resistor is calculated based on the current electrical signal and a set resistance calculation model, including:

[0073] According to the current measurement voltage and the current measurement current, a resistance calculation model set according to Kirchhoff's law is used to calculate the current resistance value of the test resistor.

[0074] Combination Figure 2 According to Kirchhoff's law:

[0075] I1·R0+U g =(I-I1)R x ;

[0076] U g +(I-I1+I g )·r=(I1-I g )·r;

[0077] Among them, R x represents the test resistor, R0 represents the reference resistor, r represents the standard resistor of the Wheatstone bridge, l1 represents the current flowing through the reference resistor R0, and l-l1 represents the current flowing through the test resistor R x The current, l-l1+l g represents the current flowing through the first standard resistor r, l1-l g represents the current flowing through the second standard resistor r, l g represents the measured current measured by ammeter G, l represents the current on the main line measured by ammeter A, U g Indicates the measured voltage measured by the voltammeter mV.

[0078] Transformation and elimination yields:

[0079]

[0080] Thus, the current resistance value of the test resistor can be measured.

[0081] Step S3. According to the current resistance value, based on a set corrosion intensity calculation model, calculate the current corrosion intensity of the test resistor in the atmospheric environment.

[0082] In some embodiments, the current corrosion intensity of the test resistor in the atmospheric environment is calculated based on the current resistance value and a set corrosion intensity calculation model, including:

[0083] Step S31. Obtaining the initial resistance value and height edge value of the metal resistor block;

[0084] Step S32. Based on the set corrosion intensity calculation model, a first ratio of the difference between the current resistance value and the initial resistance value to the current resistance value is obtained, and the first ratio is weighted based on the height edge value to obtain the current corrosion intensity of the test resistor in the atmospheric environment.

[0085] The resistance value of the metal resistor block is calculated by the following formula:

[0086]

[0087] Wherein, R represents the resistance of the metal resistor block, ρ represents the resistivity of the metal resistor block, L represents the length of the metal resistor block; and A represents the cross-sectional area of ​​the metal resistor block.

[0088] The corrosion products produced during metal corrosion are mainly non-conductive substances (metal oxides). As corrosion progresses, the effective conductive area of ​​the metal resistor block decreases and the resistance increases. Based on the above formula, the corrosion intensity can be obtained by measuring the resistance change of the metal resistor block.

[0089] Combination Figure 5 , for a metal resistor block with a length of L, a width of a, a height of b, and a resistivity of ρ, its initial resistance is:

[0090]

[0091] After a period of corrosion, the surface of the metal resistor block corrodes and becomes thinner. The thinning thickness is Δb. Then the metal resistance after corrosion is:

[0092]

[0093] Combining the two equations and transforming them, the metal resistor block thinning thickness is:

[0094]

[0095] From this, the corrosion rate of the metal can be calculated as:

[0096]

[0097] Wherein, M0 represents the initial mass of the metal resistor block; Δm: represents the weight loss of the metal resistor block; A0 represents the cross-sectional area of ​​the metal resistor block;

[0098] From this, it can be deduced that the corrosion intensity of the metal resistor block is:

[0099]

[0100] Thus, the corrosion intensity can be measured by measuring the change in resistance of a metal resistor block of known size.

[0101] In some embodiments, it also includes:

[0102] Step S4. Obtaining the target time length after the corrosion intensity detection sensor is deployed in the atmospheric environment;

[0103] Step S5. Obtain a second ratio between the current corrosion intensity and the target duration, and use the second ratio as the current corrosion rate of the test resistor in the atmospheric environment.

[0104] For example, if the corrosion intensity detection sensor is deployed in the atmospheric environment for 0.5 years and the corrosion intensity is 20um, the corrosion rate is 40um / year. Therefore, the corrosion rate can be used to reflect the corrosion speed of the sensor.

[0105] In some embodiments, the control device can be connected to one or more sensors for simultaneous monitoring of the corrosion intensity of each sensor. The control device may include, but is not limited to, a power supply, a display system, an operating system, a user interface, a network communication module, etc., wherein the power supply provides power to each accessory of the control device, the display system is used to display the corrosion intensity data, the operating system is used to set the display page, etc., the user interface is used to export data and perform system maintenance, etc., and the network communication module is used to upload the monitored corrosion intensity data.

[0106] For ease of understanding, the following provides the test results (such as Table 2) of the corrosion strength of sensors of different models (such as Table 1) in various atmospheric environments for further explanation.

[0107] Table 1

[0108]

[0109] Table 2

[0110]

[0111] As mentioned above, sensors 1-7 in Table 1 were placed in an open-air environment of a test field, sensor 8 was placed on the roof of a residential building, sensor 9 was placed in the engine room of a private car, sensor 10 was placed at the bottom of a test vehicle (tests were carried out simultaneously), and sensor 11 was placed in the cabin of a scrapped test vehicle (not moved). The test lasted for 3 months, and corrosion intensity data were collected, as shown in Table 2.

[0112] Therefore, the corrosion intensity detection sensor of the embodiment of the present application can accurately measure the corrosion intensity of the atmospheric environment in real time, providing a data basis for the refined anti-corrosion design of the whole vehicle. Through this solution, the quantitative output of the corrosion rate can be achieved. In addition, the present application can directly output the corrosion intensity without additional operation, which greatly reduces the workload, avoids the errors caused by factors such as movement during the test and the removal of corrosion products, and improves the accuracy of the measurement results. In addition, the embodiment of the present application also has the advantage of an ultra-long service life. For example, based on the current research status of the automotive industry, the natural corrosion rate is calculated as 70μm / year, and a 1mm thick measuring device can be used for more than 14 years.

[0113] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one computer program instruction is stored. The at least one computer program instruction is loaded and executed by a processor to implement the operations performed by any method described in the first aspect.

[0114] The computer readable storage medium may be a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the computer readable storage medium of the present application is not limited thereto, and in the present application, the readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0115] The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection with one or more conductors, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0116] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0117] See also Figure 7 , which is a schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application.

[0118] According to the fourth aspect of an embodiment of the present application, an electronic device is provided, comprising one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement operations performed by any method of the first aspect.

[0119] like Figure 7 As shown, the electronic device 400 is in the form of a general computing device. The components of the electronic device 400 may include but are not limited to: at least one processing unit 410, at least one storage unit 420, and a bus 430 connecting different system components (including the storage unit 420 and the processing unit 410).

[0120] The storage unit stores program codes, which can be executed by the processing unit 410, so that the processing unit 410 executes the steps described in the above “Embodiment Method” section of this specification according to various exemplary implementations of the present application.

[0121] The storage unit 420 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 421 and / or a cache 422 , and may further include a read-only memory unit (ROM) 423 .

[0122] The storage unit 420 may also include a program / utility 424 having a set (at least one) of program modules 425, such program modules 425 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0123] Bus 430 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0124] The electronic device 400 may also communicate with one or more external devices 500 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 400, and / or communicate with any device that enables the electronic device 400 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed through an I / O (input / output) interface 450, wherein the I / O interface 450 may also be connected to a display unit 440 to display the communication content through the display unit 440. In addition, the electronic device 400 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 460. As shown in the figure, the network adapter 460 communicates with other modules of the electronic device 400 through the bus 430. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0125] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0126] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0127] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0128] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-On l yMemory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program codes.

[0129] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A corrosion intensity detection sensor, characterized in that: include: A test circuit, the test circuit comprising a test resistor and a reference resistor connected to each other, at least one side of the test resistor being in contact with the atmospheric environment, the reference resistor being sealed in an insulator, and a resistance parameter of the reference resistor having a set corresponding relationship with an initial resistance parameter of the test resistor; A signal acquisition module connected to the test circuit, the signal acquisition module is used to collect a current electrical signal output by the test circuit, the current electrical signal is used to reflect the current resistance difference between the test resistor and the reference resistor; A signal transmission module connected to the signal acquisition module, the signal transmission module is used to upload the current electrical signal to a control device outside the sensor, so that the control device determines the current corrosion intensity of the test resistor in the atmospheric environment according to the current electrical signal.

2. The sensor according to claim 1, characterized in that The test circuit includes a Wheatstone bridge including the test resistor and the reference resistor.

3. The sensor according to claim 1, characterized in that The test resistor comprises an insulating shell with an opening on the surface and a metal resistor block located in the insulating shell. The corrosion surface of the metal resistor block facing the opening is used to contact the atmospheric environment, and the measuring surface of the metal resistor block is connected to the reference resistor.

4. The sensor according to claim 3, characterized in that The metal resistance block is in a square shape, the length side of the metal resistance block is greater than the height side and the width side, and the surface to be corroded and the measuring surface share the same length side; The surface to be etched includes two length sides and two width sides, and the measuring surface includes two height sides and two width sides.

5. The sensor according to claim 4, characterized in that The value range of the length side is: 10mm-20mm, and the value range of the width side and the height side is: 1mm-2mm.

6. The sensor according to any one of claims 3 to 5, characterized in that: The metal resistor block is bent in a spiral shape and arranged in the insulating shell.

7. A method for detecting corrosion intensity, characterized in that: Executed in a control device, the control device is communicatively connected to the corrosion intensity detection sensor according to any one of claims 1 to 6, the method comprising: Acquire the current electrical signal uploaded by the signal transmission module of the corrosion intensity detection sensor; According to the current electrical signal, based on a set resistance calculation model, a current resistance value of the test resistor is calculated; According to the current resistance value, based on a set corrosion intensity calculation model, the current corrosion intensity of the test resistor in the atmospheric environment is calculated.

8. The method according to claim 7, characterized in that The current electrical signal includes the current measurement voltage and the current measurement current of the Wheatstone bridge, and the current resistance value of the test resistor is calculated based on the current electrical signal and a set resistance calculation model, including: According to the current measurement voltage and the current measurement current, a resistance calculation model set according to Kirchhoff's law is used to calculate the current resistance value of the test resistor.

9. The method according to claim 7, characterized in that: The step of calculating the current corrosion intensity of the test resistor in the atmospheric environment according to the current resistance value and based on a set corrosion intensity calculation model includes: Obtain the initial resistance value and height edge value of the metal resistor block; Based on the set corrosion intensity calculation model, a first ratio of the difference between the current resistance value and the initial resistance value to the current resistance value is obtained, and the first ratio is weighted based on the height edge value to obtain the current corrosion intensity of the test resistor in the atmospheric environment.

10. The method according to any one of claims 7 to 9, characterized in that: Also includes: Obtaining a target length of time after the corrosion intensity detection sensor is deployed in the atmospheric environment; A second ratio between the current corrosion intensity and the target duration is obtained, and the second ratio is used as the current corrosion rate of the test resistor in the atmospheric environment.

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