An inductance measurement system based on a deformation amount correlation model

Abstract

The application discloses an inductance measurement system based on a deformation amount correlation model and relates to the technical field of deformation monitoring, solves the problems of lacking fine analysis on the inductance change process, being difficult to distinguish real deformation from interference signals by only comparing and judging deformation through a single inductance value, and the like, realizes automatic processing through the cooperation of each function end in the whole process from real-time monitoring of inductance values, generation of change curves, comparison of curve features, matching of correlation models to final deformation feature output, reduces manual intervention, and improves monitoring efficiency; meanwhile, interference signals can be automatically identified and prompts can be generated through multi-round curve comparison and screening, which provides intuitive and reliable basis for state evaluation and maintenance decision of key components, helps to find potential deformation risks in time, and guarantees the safe and stable operation of equipment or structures.

Description

Technical Field

[0001] This invention relates to the field of deformation monitoring technology, specifically to an inductance measurement system based on a deformation correlation model. Background Technology

[0002] In industrial production, equipment operation and maintenance, and structural monitoring, the deformation state of key components directly affects the safe and stable operation of the system. Therefore, accurate deformation measurement is of great significance. Traditional deformation measurement methods mostly rely on technologies such as resistance strain gauges and laser ranging. While resistance strain gauges are relatively inexpensive, they are easily affected by environmental factors such as temperature and humidity, resulting in poor long-term stability. Non-contact methods such as laser ranging, although highly accurate, are limited by the measurement environment (such as strong light and dust interference) and have high equipment costs, making them difficult to widely apply in complex industrial scenarios.

[0003] Inductive measurement technology, due to its simple structure, strong anti-interference ability, and fast response speed, has gradually become an important choice for deformation monitoring. Its core principle is to utilize the sensitivity of inductance parameters to changes in geometric shape, and to infer the degree of deformation by measuring changes in inductance value. However, existing inductance measurement systems often have the following shortcomings: First, the triggering mechanism for changes in inductance value is not precise enough, and it is easily affected by non-deformation factors such as electromagnetic interference and temperature fluctuations, leading to misjudgments or missed judgments; second, it lacks refined analysis of the inductance change process, and judging deformation solely by comparing a single inductance value makes it difficult to distinguish between real deformation and interference signals; third, it has poor adaptability to different types of key components (such as precision structures and bulky frames), and cannot flexibly match the deformation monitoring needs of different magnitudes.

[0004] Furthermore, the correlation between inductance and deformation often relies on a simple linear model, neglecting the dynamic changes in parameters such as line length and cross-sectional area, resulting in insufficient accuracy in deformation inference. Therefore, how to construct an inductance measurement system that can accurately identify effective deformation signals, adapt to multiple scenarios, and has anti-interference capabilities has become an important issue in improving the reliability of deformation monitoring of key components. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an inductance measurement system based on a deformation correlation model, which solves the problem of lacking a detailed analysis of the inductance change process, judging deformation solely by comparing a single inductance value, and making it difficult to distinguish between real deformation and interference signals.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an inductance measurement system based on a deformation correlation model, comprising:

[0007] The inductance value monitoring terminal monitors the inductance values ​​associated with key components and confirms the inductance difference based on the real-time monitored inductance values. It then compares the inductance difference with a preset threshold to determine whether a verification signal should be generated. The verification signal confirmation process includes:

[0008] The inductance value of the key component detected for the first time is recorded as the standard inductance value Bz;

[0009] The inductance value monitored in real time will be calibrated as D. i Where i represents different times, using: Cz i =|D i -Bz| Confirms the inductance difference Cz associated with the corresponding time. i And identify the confirmed inductance difference Cz i Does it satisfy: Cz i If the value is greater than or equal to Y1, a verification signal is generated; otherwise, continuous monitoring continues, with Y1 being a preset threshold.

[0010] The verification period confirmation end, based on the generated verification signal, confirms the verification period according to the change process of the resonant frequency, and confirms the verification period and the associated inductance value, generating an inductance value change curve belonging to the corresponding verification period. The specific generation process includes:

[0011] Confirm the specific time associated with the verification signal and record it as the reference time. Trace back from the reference time to confirm the standard time when the inductance value is consistent with the standard inductance value. Then monitor the resonant frequency associated with subsequent times of the reference time, record the times when the resonant frequency is in a changing state, and record the last set of changing times as the end time.

[0012] Using the standard time as the initial time and the end time as the termination time, a set of verification time periods is identified, and the inductance values ​​associated with different times within the verification time period are identified. Based on the change process of the inductance values, an inductance value change curve belonging to the verification time period is generated.

[0013] At the feature verification and comparison end, the generated inductance value change curve is recorded as the standard curve, and the calibration features are confirmed from the standard curve. Based on the calibration features, several sets of undetermined curves are confirmed from the correlation model, and these undetermined curves are compared with the standard curve to select the correlation curve. The confirmation process of the undetermined curves includes:

[0014] Identify the inductance value associated with the endpoint of the standard curve, record this inductance value as the calibration characteristic, and confirm whether the standard curve is in a decreasing or increasing state.

[0015] If the standard curve is decreasing, the line length parameter is increased within the associated model; if the standard curve is increasing, the line length parameter is decreased within the associated model. The cross-sectional area parameter A associated with the inductor coil under different line length parameter states is then confirmed from a preset database, and the line length parameter is controlled to change according to a preset range.

[0016] The minimum interval value within the variation range is selected as the unit variable value, and the specific line length parameters associated with the inductor coil in subsequent unit time periods are recorded. Then, the cross-sectional area parameters associated with the corresponding line length parameters are locked. The specific line length parameters and cross-sectional area parameters associated at different times are substituted into the core algorithm of the association model to confirm the inductance value associated at the corresponding time. Based on the confirmed unit variable value, the subsequent associated inductance values ​​are confirmed sequentially until the confirmed inductance value reaches the calibration characteristics. This process stops, generating the inductance value variation curve belonging to this stage, which is denoted as the undetermined curve.

[0017] Then, select other interval values ​​from the change interval as the unit variable value of the corresponding change process, and confirm the inductance value change curve associated with the change process. Confirm the undetermined curves associated with different unit variable values ​​in the change interval in turn.

[0018] The preferred core algorithm for the association model is: Where μ0 is the free permeability, which is a constant, and μ r N is the relative conductivity of the magnetic core, which is also a preset value and is determined according to the material of the corresponding inductor coil;

[0019] Its range of change is a preset range. If the standard curve is in an upward state, the range of change is the downward range of change. If the standard curve is in a downward state, the range of change is the upward range of change. It is the value that the corresponding line length parameter can change within a unit of time.

[0020] The preferred method for locking the associated curve from the undetermined curves is as follows:

[0021] The initial times associated with several sets of undetermined curves and standard curves are all calibrated to time 0, and the undetermined curves and standard curves are processed within the same two-dimensional coordinate system:

[0022] Randomly select a set of undetermined curves, identify the different inductance values ​​associated with the same time from the undetermined curves and the standard curve, and process the difference between the two sets of inductance values ​​to identify the difference to be verified. The difference to be verified is ≥0. If there is only one set of inductance values ​​at the same time, record the existing inductance value as the difference to be verified associated with the corresponding time, and process the standard deviation of the identified several sets of differences to be verified to identify a standard value.

[0023] If the standard value is less than or equal to Y2, the current curve to be determined is recorded as an associated curve. Otherwise, no calibration is performed, and the curves to be determined are processed in turn to identify whether they are associated curves. If no associated curve exists, an electromagnetic interference signal is generated directly for display, with Y2 being a preset value.

[0024] The calibration processing end, based on the confirmed multiple sets of correlation curves, removes deviation curves from the correlation curves, then finds the limiting curve that is closest to the distance feature from the remaining correlation curves, and outputs and displays the deformation features based on the limiting curve:

[0025] Preferably, the specific method for outputting deformation features is as follows:

[0026] Identify whether there are any curves among the confirmed correlation curves that intersect with the standard curve. If so, directly remove such deviation curves; otherwise, do not perform any processing.

[0027] From the remaining correlation curves, identify several sets of differences to be verified that are associated with the standard curve. Then, average these differences to be verified and confirm the mean value. If the mean value to be verified is ≤ Y1×0.5, where Y1 is a preset threshold, then retain the correlation curve. If the mean value to be verified is > Y1×0.5, then remove the deviation curves. If all correlation curves are deviation curves, then directly generate an electromagnetic interference signal for display.

[0028] Identify the limiting curve from the remaining associated curves that is closest to the standard curve in terms of distance characteristics: Select the minimum value from the means to be verified associated with different associated curves, record the associated curve corresponding to this minimum value as the limiting curve, and confirm the line length parameters of the initial endpoint and the final endpoint of this limiting curve, and confirm the deformation directly.

[0029] This invention provides an inductance measurement system based on a deformation correlation model. Compared with existing technologies, it has the following advantages:

[0030] This invention effectively filters out minor interference and accurately triggers the verification process by setting a standard inductance value as a benchmark and combining the inductance difference with the threshold Y1 judgment mechanism. The precise definition of the verification period focuses on the effective variation range of the inductance value, reducing interference from invalid data. The feature verification and comparison stage can efficiently distinguish between real deformation and electromagnetic interference through curve feature extraction, correlation model matching, and standard deviation analysis (Y2 threshold). After deviation curve elimination and optimal limiting curve screening, the accuracy of deformation calculation results is further ensured.

[0031] For different types of key components (such as precision mechanical structures and bulky frames), the threshold Y1 can be adjusted to adapt to different levels of deformation requirements. It can capture micro-level deformations as well as monitor larger millimeter-level deformations, making it widely applicable.

[0032] From real-time monitoring of inductance values ​​and generation of change curves, to curve feature comparison and correlation model matching, and finally to the output of deformation characteristics, the entire process is automated through the collaboration of various functional terminals, reducing manual intervention and improving monitoring efficiency. At the same time, through multiple rounds of curve comparison and screening, interference signals can be automatically identified and prompts can be generated, providing an intuitive and reliable basis for the status assessment and maintenance decisions of key components, helping to promptly detect potential deformation risks and ensure the safe and stable operation of equipment or structures. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the principle framework of the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 This application provides an inductance measurement system based on a deformation correlation model, including an inductance value monitoring end, a verification period confirmation end, a feature verification comparison end, a correlation model, and a calibration processing end. The inductance value monitoring end, the verification period confirmation end, and the feature verification comparison end are electrically connected from the output node to the input node in sequence. The correlation model and the feature verification comparison end are bidirectionally linked, and the feature verification comparison end is electrically connected to the input node of the calibration processing end.

[0036] The inductance monitoring terminal monitors the inductance values ​​associated with key components and confirms the inductance difference based on the real-time monitored inductance values. It then compares the inductance difference with a preset threshold to determine whether a verification signal should be generated. The verification signal confirmation process includes:

[0037] The inductance value detected for the first time in a critical component is recorded as the standard inductance value Bz (generally, the value detected for the first time is the standard value, which is the state without any deformation, and the state of the corresponding critical component in the initial state is also the standard state, so the inductance value is the standard value. When the critical component deforms later, it will cause the inductor coil to deform, which will cause the inductance value to change, because the length and cross-sectional area of ​​the inductor coil will change accordingly).

[0038] The inductance value monitored in real time will be calibrated as D. i Where i represents different times, using: Cz i =|D i-Bz| Confirms the inductance difference Cz associated with the corresponding time. i And identify the confirmed inductance difference Cz i Does it satisfy: Cz i If the value is greater than or equal to Y1, a verification signal is generated; otherwise, continuous monitoring continues. Y1 is a preset threshold determined by the operator based on experience. If the component is a precision mechanical structure (such as an engine valve or chip pin), the allowable deformation is extremely small (micrometer level), then Y1 needs to be set to a smaller value (such as 0.1%-1% of the inductance value). If the component is a bulky structure (such as a large pipe or frame), the allowable deformation is larger (millimeters level), then Y1 can be set to a larger value (such as 5%-10% of the inductance value).

[0039] By attaching an inductor coil to the surface of a tubular component, and using external circuitry and a measurement system, changes in inductance are converted into readable electrical signals (such as voltage, current, and frequency). The inductance value is then calculated. Specifically, the inductor coil senses changes in its own inductance caused by external factors (such as deformation, temperature, and dielectric material), but these changes need to be detected and converted by a measurement circuit. Common inductance measurement principles and circuits include: the resonance method, which connects an inductor coil in series or parallel with a standard capacitor to form an LC resonant circuit with a resonant frequency of [insert resonant frequency here]. When the inductance L changes, the resonant frequency f will change accordingly. The inductance value can be deduced by measuring the change in frequency. C represents the capacitance.

[0040] Features: Simple structure, suitable for high-frequency measurement, and widely used for signal conversion of inductive sensors;

[0041] The verification period confirmation end, based on the change in resonant frequency of the generated verification signal, confirms the verification period and its associated inductance value, generating an inductance value change curve for the corresponding verification period. The specific generation process includes:

[0042] Confirm the specific time associated with the verification signal and record it as the reference time. Trace back from the reference time to confirm the standard time when the inductance value is consistent with the standard inductance value. Then monitor the resonant frequency associated with subsequent times of the reference time, record the times when the resonant frequency is in a changing state, and record the last set of changing times as the end time.

[0043] Using the standard time as the initial time and the end time as the final time, a set of verification time periods is identified, and the inductance values ​​associated with different times within the verification time period are identified. Based on the change process of the inductance values, an inductance value change curve belonging to the verification time period is generated. The horizontal axis of the curve is the time line, and the vertical axis is the inductance value.

[0044] Specifically, the so-called verification period is the period during which the inductance value changes. During this period, the inductance value will change, and thus the inductance value will generate a corresponding change curve as time changes. This change curve is the curve to be verified. In order to identify whether the value of the key components has changed due to the deformation process, it is necessary to combine the corresponding model for comprehensive verification, identify the change curves associated with different deformation states, and thus evaluate whether the key components have undergone relevant deformation.

[0045] In the feature verification and comparison section, the generated inductance value change curve is recorded as a standard curve, and calibration features are confirmed from the standard curve. Based on the calibration features, several sets of undetermined curves are confirmed from the correlation model, and these undetermined curves are compared with the standard curve to select the correlation curve. The confirmation process of the undetermined curves includes:

[0046] Confirm the inductance value associated with the endpoint of the standard curve, and record this inductance value as the calibration characteristic (because the accuracy is effectively ensured during the measurement process, the inductance value inside the standard curve generally increases rapidly, which is a numerical climbing state, and there will be no curve fluctuations), and confirm whether the standard curve is in a downward or upward state.

[0047] If the standard curve is decreasing, the line length parameter is increased within the associated model; if the standard curve is increasing, the line length parameter is decreased within the associated model. The cross-sectional area parameter A associated with the inductor coil under different line length parameter states is then confirmed from a preset database, and the line length parameter is controlled to change according to a preset range.

[0048] The minimum interval value within the variation range is selected as the unit variable value, and the specific line length parameters associated with the inductor coil in subsequent unit time periods are recorded. Then, the cross-sectional area parameters associated with the corresponding line length parameters are locked. The specific line length parameters and cross-sectional area parameters associated at different times are substituted into the core algorithm of the association model to confirm the inductance value associated at the corresponding time. Based on the confirmed unit variable value, the subsequent associated inductance values ​​are confirmed sequentially until the confirmed inductance value reaches the calibration characteristics. This process stops, generating the inductance value variation curve belonging to this stage, which is denoted as the undetermined curve.

[0049] Then, select other interval values ​​from the change interval as the unit variable value of the corresponding change process, and confirm the inductance value change curve associated with the change process. Confirm the undetermined curves associated with different unit variable values ​​in the change interval in turn.

[0050] The core algorithm of the association model is: Where μ0 is the vacuum permeability (a constant determined in advance by the operator), where μ rThe relative conductivity of the magnetic core is also a preset value, determined according to the material of the corresponding inductor coil. N is the number of turns of the inductor coil. As can be seen from this algorithm, increasing the wire length will lead to a smaller cross-sectional area, which will relatively lead to a smaller inductance value. Conversely, decreasing the wire length will lead to a larger cross-sectional area, which will relatively lead to a larger inductance value. Therefore, based on the change state of the standard curve, a reverse change process of the corresponding wire length can be confirmed. Thus, based on the corresponding interval, the curve to be compared can be confirmed to identify whether the change process of the corresponding standard curve is consistent with the change characteristics of the curve to be compared.

[0051] Its variation range is a preset range. If the standard curve is in an upward state, the variation range is the downward variation range. If the standard curve is in a downward state, the variation range is the upward variation range. It is the value that the corresponding line length parameter can change within a unit of time. If the variation range is [1, 10], then its line length parameter can be increased by 1 or 2 within a unit of time. As the unit of time increases, its line length parameter continues to change.

[0052] The specific method for locking the associated curve from the undetermined curves is as follows:

[0053] The initial times associated with several sets of undetermined curves and standard curves are all calibrated to time 0, and the undetermined curves and standard curves are processed within the same two-dimensional coordinate system:

[0054] A set of undetermined curves is randomly selected. Different inductance values ​​associated with the same time are identified from the undetermined curves and the standard curve. The difference between the two sets of inductance values ​​is processed to identify the difference to be verified. The difference to be verified is ≥0 (that is, the difference processing also needs to go through a process of absolute value processing. Here, the restriction of being greater than or equal to 0 limits the numerical characteristics of the difference to be verified). If there is only one set of inductance values ​​at the same time (that is, there is no corresponding inductance value in the other curve), the existing inductance value is recorded as the difference to be verified associated with the corresponding time. The standard deviation of the identified several sets of differences to be verified is processed to identify a standard value.

[0055] If the standard value is less than or equal to Y2, the current undetermined curve is recorded as an associated curve (meaning that the overall behavior of the current undetermined curve is similar to that of the standard curve, so it can be recorded as the corresponding associated curve). Otherwise, no calibration is performed, and the undetermined curves are processed in turn to identify whether they are associated curves. If no associated curve exists, an electromagnetic interference signal is generated directly for display. Y2 is a preset value, which is determined in advance by the operator based on experience (when electromagnetic interference exists, it will also cause the corresponding inductor coil to change its inductance value).

[0056] Specifically, based on the specific path change process of the corresponding curve, the difference in change between the corresponding curve and the corresponding standard curve can be identified based on the specific change characteristics of the corresponding curve, so as to make a comprehensive evaluation, identify and confirm some related curves that are close to the characteristics of the standard curve, and then carry out subsequent processing.

[0057] In the calibration processing section, based on the confirmed multiple sets of correlation curves, deviation curves are removed from the correlation curves. Then, from the remaining correlation curves, the limiting curve that is closest to the distance feature is found, and the deformation feature is output and displayed based on the limiting curve.

[0058] The specific method for outputting deformation features is as follows:

[0059] Identify whether there are any curves among the confirmed correlation curves that intersect with the standard curve. If so, directly remove such deviation curves; otherwise, do not perform any processing.

[0060] From the remaining correlation curves, identify several sets of differences to be verified that are associated with the standard curve. Then, average these differences to be verified and confirm the mean value. If the mean value to be verified is ≤ Y1×0.5, where Y1 is a preset threshold, then retain the correlation curve. If the mean value to be verified is > Y1×0.5, then remove the deviation curves. If all correlation curves are deviation curves, then directly generate an electromagnetic interference signal for display.

[0061] Identify the limiting curve that is closest to the standard curve from the remaining correlation curves: Select the minimum value from the means to be verified associated with different correlation curves, record the correlation curve corresponding to this minimum value as the limiting curve, and confirm the line length parameters of the initial endpoint and the final endpoint of this limiting curve, and confirm the deformation directly.

[0062] Specifically, based on this deformation, external personnel can confirm the deformation of the corresponding key components and take real-time countermeasures. The deformation standards for different types of components need to be determined in combination with the specific application scenario.

[0063] Some of the data in the above formulas are numerical calculations with dimensions removed, and the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0064] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. An inductance measurement system based on a deformation correlation model, characterized in that, include: The inductance value monitoring terminal monitors the inductance value associated with key components in real time, confirms the inductance difference based on the real-time monitored inductance value, compares the inductance difference with a preset threshold, and determines whether to generate a verification signal. The verification period confirmation end confirms the change process of the resonant frequency based on the verification signal, then confirms the verification period, and confirms the verification period and the associated inductance value, generating the inductance value change curve belonging to the corresponding verification period. At the feature verification and comparison end, the inductance value change curve is recorded as the standard curve, and the calibration features are confirmed from the standard curve. Based on the calibration features, several sets of undetermined curves are confirmed from the correlation model, and the several sets of undetermined curves are compared with the standard curve to select the correlation curve. The calibration processing end removes deviation curves from the confirmed multiple sets of correlation curves, then finds the limiting curve that is closest to the feature from the remaining correlation curves, and outputs the deformation variables based on the limiting curve for display.

2. The inductance measurement system based on a deformation correlation model according to claim 1, characterized in that, The inductance value monitoring terminal generates the verification signal in the following specific way: The inductance value initially detected for the key component is recorded as the standard inductance value Bz, and the inductance values ​​subsequently detected in real time are calibrated as D. i Where i represents different times, using: Cz i =|D i -Bz| Confirms the inductance difference Cz associated with the corresponding time. i And identify the confirmed inductance difference Cz i Does it satisfy: Cz i If the value is greater than or equal to Y1, a verification signal is generated; otherwise, continuous monitoring continues, with Y1 being a preset threshold.

3. The inductance measurement system based on a deformation correlation model according to claim 1, characterized in that, The specific method by which the verification period confirmation terminal generates the inductance value change curve is as follows: Confirm the specific time associated with the verification signal and record it as the reference time. Trace back from the reference time to confirm the standard time when the inductance value is consistent with the standard inductance value. Then monitor the resonant frequency associated with subsequent times of the reference time, record the times when the resonant frequency is in a changing state, and record the last set of changing times as the end time. Using the standard time as the initial time and the end time as the termination time, a set of verification time periods is identified, and the inductance values ​​associated with different times within the verification time period are identified. Based on the change process of the inductance values, an inductance value change curve belonging to the verification time period is generated.

4. The inductance measurement system based on a deformation correlation model according to claim 1, characterized in that, The specific method for confirming the curve to be determined at the feature verification and comparison end is as follows: Identify the inductance value associated with the endpoint of the standard curve, record this inductance value as the calibration characteristic, and confirm whether the standard curve is in a decreasing or increasing state. If the standard curve is decreasing, the line length parameter is increased within the associated model; if the standard curve is increasing, the line length parameter is decreased within the associated model. The cross-sectional area parameter A associated with the inductor coil under different line length parameter states is then confirmed from a preset database, and the line length parameter is controlled to change according to a preset range. The minimum interval value within the variation range is selected as the unit variable value, and the specific line length parameters associated with the inductor coil in subsequent unit time periods are recorded. Then, the cross-sectional area parameters associated with the corresponding line length parameters are locked. The specific line length parameters and cross-sectional area parameters associated at different times are substituted into the core algorithm of the association model to confirm the inductance value associated at the corresponding time. Based on the confirmed unit variable value, the subsequent associated inductance values ​​are confirmed sequentially until the confirmed inductance value reaches the calibration characteristics. This process stops, generating the inductance value variation curve belonging to this stage, which is recorded as the undetermined curve, and its variation range is the preset range. Then, select other interval values ​​from the change interval as the unit variable value of the corresponding change process, and confirm the inductance value change curve associated with the change process. Confirm the undetermined curves associated with different unit variable values ​​in the change interval in turn.

5. The inductance measurement system based on a deformation correlation model according to claim 4, characterized in that, The specific method by which the feature verification and comparison end locks the associated curve from the undetermined curve is as follows: The initial times associated with several sets of undetermined curves and standard curves are all calibrated to time 0, and the undetermined curves and standard curves are processed within the same two-dimensional coordinate system: Randomly select a set of undetermined curves, identify the different inductance values ​​associated with the same time from the undetermined curves and the standard curve, and process the difference between the two sets of inductance values ​​to identify the difference to be verified. The difference to be verified is ≥0. If there is only one set of inductance values ​​at the same time, record the existing inductance value as the difference to be verified associated with the corresponding time, and process the standard deviation of the identified several sets of differences to be verified to identify a standard value. If the standard value is less than or equal to Y2, the current curve to be determined is recorded as an associated curve. Otherwise, no calibration is performed, and the curves to be determined are processed in turn to identify whether they are associated curves. If no associated curve exists, an electromagnetic interference signal is generated directly for display, with Y2 being a preset value.

6. The inductance measurement system based on a deformation correlation model according to claim 4, characterized in that, The core algorithm of the association model is: Where μ0 is the free permeability, and μ r Let N be the relative conductivity of the magnetic core, where N is the number of turns of the inductor coil.

7. The inductance measurement system based on a deformation correlation model according to claim 1, characterized in that, The calibration processing terminal outputs deformation characteristics in the following specific manner: Identify whether there are any curves among the confirmed correlation curves that intersect with the standard curve. If so, directly remove such deviation curves; otherwise, do not perform any processing. From the remaining correlation curves, identify several sets of differences to be verified that are associated with the standard curve. Then, average these differences to be verified and identify the mean value to be verified. If the mean value to be verified is ≤ Y1×0.5, where Y1 is a preset threshold, then retain the correlation curve. If the mean value to be verified is > Y1×0.5, then remove the deviation curve. Identify the limiting curve from the remaining associated curves that is closest to the standard curve in terms of distance characteristics: Select the minimum value from the means to be verified associated with different associated curves, record the associated curve corresponding to this minimum value as the limiting curve, and confirm the line length parameters of the initial endpoint and the final endpoint of this limiting curve, and confirm the deformation directly.

8. The inductance measurement system based on a deformation correlation model according to claim 7, characterized in that, If all the associated curves are deviation curves, then an electromagnetic interference signal will be generated directly for display.

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