Multi-parameter detection device and method for solid non-polar electrode

Abstract

The application discloses a multi-parameter detection device and method for solid non-polarized electrodes, relates to detection technology of electrical prospecting instruments, and comprises a master control unit, a temperature acquisition module, a humidity acquisition module, a pH value acquisition module, a resistance acquisition module, an analog-digital conversion module, a data storage module, a wireless communication module and a display module. The master control unit performs temperature compensation on the pH value parameter according to the temperature parameter, calculates a plurality of fault mode scores according to the humidity parameter, the compensated pH value parameter and the resistance parameter respectively, calculates a performance state index according to all the fault mode scores, and outputs the performance state index and corresponding fault codes through the display module and the wireless communication module. The application realizes synchronous detection and comprehensive performance evaluation of the multi-parameters of the solid non-polarized electrodes, and improves the detection efficiency and fault diagnosis accuracy.

Description

Technical Field

[0001] This application relates to the field of electrical exploration instrument testing technology, and in particular to a multi-parameter testing device and method for solid non-polarizable electrodes. Background Technology

[0002] In electrical exploration, solid non-polarizable electrodes are key sensors used in geophysical exploration (such as induced polarization methods, natural electric field methods, and magnetotelluric sounding) to accurately measure the potential difference in the Earth's electric field. The performance stability of solid non-polarizable electrodes is susceptible to the combined effects of multiple factors: electrolytes are prone to drying and shrinkage due to changes in ambient humidity, leading to a sudden increase in internal resistance; temperature fluctuations cause significant range drift; abnormal pH values ​​accelerate electrolyte corrosion; and the contact resistance at the metal / electrolyte interface deteriorates. Abnormalities in these parameters can all lead to measurement errors, and even permanent failure of the solid non-polarizable electrode.

[0003] Current methods for monitoring the condition of solid nonpolar electrodes primarily rely on offline laboratory testing of single parameters (such as internal resistance or range), which cannot simultaneously monitor multiple parameters such as temperature, humidity, pH, and resistance. During field exploration, maintenance personnel must use thermometers, ohmmeters, pH test strips, and other tools to perform measurements at different times, which is not only inefficient but also makes it difficult to capture the dynamic coupling of multiple parameters and their associated fault mechanisms. Therefore, there is an urgent need for a device and method capable of simultaneously monitoring multiple parameters of solid nonpolar electrodes and comprehensively evaluating their performance status. Summary of the Invention

[0004] The purpose of this application is to provide a multi-parameter detection device and method for a solid non-polarizable electrode, which can solve the problem that the existing technology cannot simultaneously detect multiple parameters such as temperature, humidity, pH, and resistance.

[0005] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides a multi-parameter detection device for a solid non-polarizable electrode, comprising: The main control unit is used to receive and process all the collected parameters, and calculate the performance state index of the solid non-polarizable electrode based on the parameters. A temperature acquisition module is used to acquire the temperature parameters of the solid non-polarizable electrode and output the acquired temperature parameters to the main control unit. A humidity acquisition module is used to acquire the humidity parameters of the solid non-polarizable electrode and output the acquired humidity parameters to the main control unit. A pH value acquisition module is used to acquire the pH value parameter of the solid non-polarizable electrode and output the acquired pH value parameter to an analog-to-digital conversion module. A resistance acquisition module is used to acquire the resistance parameters of the solid non-polarizable electrode and output the acquired resistance parameters to the analog-to-digital conversion module. An analog-to-digital conversion module is used to convert the received pH value parameter and the resistance parameter into digital signals and then output them to the main control unit. A data storage module, which is connected to the main control unit, is used to store the collected data.

[0006] Optionally, the multi-parameter detection device for the solid non-polarizable electrode further includes: A wireless communication module, which is connected to the main control unit, is used for data interaction with external devices; The display module is connected to the main control unit and is used to display the collected data and the performance status index.

[0007] Optionally, the temperature acquisition module employs a digital temperature sensor, which is installed in the threaded hole of the top metal end cap of the solid non-polarized electrode and contacts the metal end cap through a heat-conducting medium.

[0008] The humidity acquisition module uses a capacitive humidity sensor, which is installed on the inner wall of the housing of the solid non-polarized electrode, with the sensitive surface of the capacitive humidity sensor facing the internal air cavity of the solid non-polarized electrode.

[0009] Optionally, the pH acquisition module uses an ion-sensitive field-effect transistor, in conjunction with a solid polymeric electrolyte composite reference electrode, and is fixed to the upper part of the electrolyte of the solid non-polarizable electrode by a bracket.

[0010] Optionally, the resistance acquisition module adopts a four-wire bridge circuit, which includes a constant current source circuit, and outputs a differential voltage signal to the analog-to-digital conversion module.

[0011] Secondly, this application provides a multi-parameter detection method for a solid non-polarizable electrode, employing the aforementioned multi-parameter detection device for a solid non-polarizable electrode, comprising: The temperature parameters of the solid non-polarized electrode are collected by the temperature acquisition module, the humidity parameters of the solid non-polarized electrode are collected by the humidity acquisition module, the pH parameters of the solid non-polarized electrode are collected by the pH acquisition module, and the resistance parameters of the solid non-polarized electrode are collected by the resistance acquisition module. The pH value acquisition module outputs the acquired pH value parameter to the analog-to-digital converter module; the resistance acquisition module outputs the acquired resistance parameter to the analog-to-digital converter module; the analog-to-digital converter module converts the pH value parameter and the resistance parameter into digital signals and outputs them to the main control unit; the temperature acquisition module outputs the acquired temperature parameter to the main control unit; the humidity acquisition module outputs the acquired humidity parameter to the main control unit. The main control unit performs temperature compensation on the pH value parameter based on the temperature parameter to obtain the compensated pH value parameter. The main control unit calculates the scores of various fault modes of the solid non-polarizable electrode based on the humidity parameter, the compensated pH value parameter, and the resistance parameter, and calculates the performance status index of the solid non-polarizable electrode based on all the fault mode scores. The display module and wireless communication module output the performance status index and the fault code corresponding to the highest of the fault mode scores.

[0012] Optionally, the step of performing temperature compensation on the pH value parameter based on the temperature parameter by the main control unit to obtain the compensated pH value parameter includes: Obtain the temperature value output by the temperature acquisition module. ; Obtain the voltage value output by the pH acquisition module. ; Calculate the compensation slope at the current temperature using the following formula. : ; in, The slope of the pH voltage output calibrated at 25°C; Calculate the compensated pH value using the following formula. : ; in, To calibrate the output voltage value under solution conditions, The pH value of the calibration solution.

[0013] Optionally, the step of calculating multiple fault mode scores for the solid non-polarizable electrode by the main control unit based on the humidity parameter, the compensated pH parameter, and the resistance parameter includes: Calculate the humidity drop deviation Humidity rise deviation pH deviation Resistance deviation Temperature deviation and resistance change deviation ; Among them, the humidity decrease deviation The humidity increase deviation is calculated based on the difference between the reference humidity and the current humidity relative to the allowable deviation of humidity decrease; The pH value deviation is calculated based on the difference between the current humidity and the reference humidity relative to the allowable deviation of humidity increase; The resistance deviation is calculated based on the difference between the compensated pH value and the reference pH value relative to the allowable pH deviation; The temperature deviation is calculated based on the difference between the current resistance value and the reference resistance value relative to the allowable resistance deviation; The resistance abrupt change deviation is calculated based on the difference between the current temperature value and the reference temperature value relative to the allowable temperature deviation; It is calculated based on the difference between the current resistance value and the resistance value in the previous detection cycle relative to the allowable deviation of short-time sudden change in resistance; Calculate the electrolyte shrinkage and water loss fault score using the following formulas. Score for sealing failure and seepage fault Electrolyte contamination or chemical failure fault score Score for metal or electrolyte interface contact degradation fault Temperature drift affects fault score : ; ; ; ; ; in, , , , , , , , , , , , All are failure mode coefficients. This represents the normalized deviation of the original pH output voltage relative to the reference voltage. The performance status index satisfy: .

[0014] Optionally, the multi-parameter detection method for the solid non-polarizable electrode further includes: The multi-parameter detection device for the solid non-polarizable electrode collects ambient temperature and humidity each time it is powered on; When the solid non-polarizable electrode has not yet been inserted into the electrolyte, the currently collected ambient temperature and humidity are used as the reference zero point, and the reference temperature and reference humidity in the performance state index calculation formula are dynamically adjusted.

[0015] Optionally, the multi-parameter detection method for the solid non-polarizable electrode further includes: After each test, the performance status index, temperature parameter, humidity parameter, pH value parameter and resistance parameter of this test are stored in the data storage module; Once the cumulative number of tests reaches a preset number, the moving average of the performance status index is calculated. When the performance status index decreases repeatedly and the decrease exceeds a preset threshold, the display module and the wireless communication module output a warning message about the performance degradation of the solid non-polarizable electrode.

[0016] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a multi-parameter detection device and method for solid non-polarizable electrodes. It acquires the temperature, humidity, pH, and resistance parameters of the solid non-polarizable electrode through temperature acquisition, humidity acquisition, pH acquisition, and resistance acquisition modules, respectively, achieving simultaneous acquisition of parameters across four dimensions. This solves the technical problem that traditional single-index detection cannot capture multi-parameter coupling faults. The temperature and humidity acquisition modules directly output the acquired temperature and humidity parameters to the main control unit. The pH and resistance acquisition modules convert the acquired pH and resistance parameters via analog-to-digital conversion before outputting them to the main control unit. The signal flow of each module is clear, ensuring efficient and stable system operation. The main control unit performs temperature compensation for the pH parameter based on the temperature parameters, improving the accuracy of pH detection and avoiding interference from temperature changes in the pH measurement results. The main control unit calculates scores for multiple fault modes based on humidity, compensated pH, and resistance parameters, and calculates a performance status index based on all fault mode scores. This enables a comprehensive quantitative assessment of the performance status of the solid non-polarizable electrode. Furthermore, by outputting the fault code corresponding to the highest fault mode score, the cause of the fault can be quickly located, solving the technical problem of existing technologies being unable to comprehensively diagnose and quickly locate multi-parameter coupled faults. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the functional modules of a multi-parameter detection device for a solid non-polarizable electrode provided in an embodiment of this application; Figure 2 This is a schematic diagram of a sensor mounting structure provided in an embodiment of this application; Figure 3 This application provides an operation flowchart of a multi-parameter detection device for a solid non-polarizable electrode according to an embodiment of the present application. Figure 4 A flowchart illustrating a multi-parameter detection method for a solid non-polarizable electrode provided in an embodiment of this application; in: 100. Main control unit; 101. Temperature acquisition module; 102. Humidity acquisition module; 103. pH value acquisition module; 104. Resistance acquisition module; 105. Analog-to-digital conversion module; 106. Data storage module; 107. Wireless communication module; 108. Display module; 1. Aviation wire; 2. Copper wire; 3. Fixing screw; 4. Sealing cover; 5. Insulating cap; 6. PVC shell; 7. Lead wire; 8. Electrolyte; 9. Ceramic plate. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In one exemplary embodiment, such as Figure 1 As shown, a multi-parameter detection device for a solid non-polarizable electrode is provided. According to functional modules, it includes a main control unit 100, a temperature acquisition module 101, a humidity acquisition module 102, a pH value acquisition module 103, a resistance acquisition module 104, an analog-to-digital conversion module 105, a data storage module 106, a wireless communication module 107, and a display module 108, wherein: The main control unit 100, as the control core of the entire device, is used to receive and process the collected parameters and calculate the performance status index of the solid non-polarizable electrode based on these parameters. The performance status index includes multiple fault mode scores calculated based on temperature, humidity, pH, and resistance parameters, as well as the final index value calculated based on all fault mode scores.

[0022] The temperature acquisition module 101 is used to acquire the temperature parameters of the solid non-polarized electrode and output the acquired temperature parameters to the main control unit 100. Temperature parameters are one of the key factors affecting the performance of the solid non-polarized electrode. Temperature changes cause changes in the migration rate of electrolyte ions inside the solid non-polarized electrode, thus affecting the range stability and measurement accuracy of the solid non-polarized electrode. The temperature acquisition module 101 outputs temperature parameters in digital form.

[0023] The humidity acquisition module 102 is used to acquire the humidity parameters of the solid non-polarizable electrode and output the acquired humidity parameters to the main control unit 100. The moisture content of the electrolyte inside the solid non-polarizable electrode directly affects the ionic conductivity of the electrolyte. Too low a humidity parameter will cause the electrolyte to dry out and the internal resistance to increase sharply, while too high a humidity parameter may mean that the seal has failed or that external moisture has seeped in. The humidity acquisition module 102 outputs the humidity parameter in the form of a frequency signal, which is read by the timer input capture interface of the main control unit 100 and converted into a humidity value.

[0024] The pH acquisition module 103 is used to acquire the pH parameters of the solid non-polarizable electrode and output the acquired pH parameters to the analog-to-digital conversion module 105. The pH parameter of the electrolyte is an important indicator reflecting the chemical state of the electrolyte. An abnormal deviation of the pH parameter from the normal range indicates that the electrolyte may be contaminated or chemically degraded. The pH acquisition module 103 outputs the pH parameter in the form of an analog voltage.

[0025] The resistance acquisition module 104 is used to acquire the resistance parameters of the solid non-polarizable electrode and output the acquired resistance parameters to the analog-to-digital conversion module 105. The resistance parameter is an important parameter reflecting the state of the internal conductive path of the solid non-polarizable electrode. An abnormally high resistance parameter may indicate electrolyte shrinkage, deterioration of the metal / electrolyte interface contact, or abnormal lead contact. The resistance acquisition module 104 outputs the resistance parameter in the form of a differential voltage.

[0026] The analog-to-digital converter module 105 converts the received pH and resistance parameters into digital signals and outputs them to the main control unit 100 for digital processing. Since the pH acquisition module 103 outputs an analog voltage signal and the resistance acquisition module 104 outputs a differential voltage signal, both of which are analog, they need to be converted into digital signals by the analog-to-digital converter module 105 before the main control unit 100 can read and process them.

[0027] The data storage module 106 is connected to the main control unit 100 and is used to store the collected parameter data and the calculated performance status index in chronological order, so as to facilitate subsequent historical data query and tracing.

[0028] The wireless communication module 107 is connected to the main control unit 100 and is used to interact with external devices (such as Wi-Fi tablets) to realize functions such as remote parameter configuration, data reception and firmware upgrade.

[0029] The display module 108 is connected to the main control unit 100 and is used to display the collected parameter data and the calculated performance status index of the solid non-polarizable electrode in real time, so that on-site personnel can intuitively understand the status of the solid non-polarizable electrode.

[0030] By implementing the above-described method, the simultaneous acquisition of parameters from four dimensions—temperature acquisition module 101, humidity acquisition module 102, pH value acquisition module 103, and resistance acquisition module 104—achieves multi-parameter collaborative detection of the solid non-polarizable electrode. This comprehensively reflects the health status of the solid non-polarizable electrode, overcoming the limitation of traditional single-index detection in capturing multi-parameter coupled faults. Temperature acquisition module 101 and humidity acquisition module 102 directly output temperature and humidity parameters to the main control unit 100. pH value acquisition module 103 and resistance acquisition module 104 convert pH and resistance parameters to digital values ​​via analog-to-digital conversion module 105 before outputting them to the main control unit 100. The clear division of labor and signal flow among the modules ensures efficient system operation. The analog-to-digital conversion module 105 converts analog signals to digital signals, improving signal acquisition accuracy and anti-interference capabilities. Data storage module 106 enables historical data storage, facilitating subsequent tracing and analysis. Wireless communication module 107 enables data interaction with external devices, supporting remote monitoring and parameter configuration. The display module 108 enables local real-time display of the detection results, facilitating quick assessment of the state of the solid non-polarizable electrode by on-site personnel. The collaborative operation of these modules constitutes a complete intelligent multi-parameter detection system for solid non-polarizable electrodes.

[0031] As an optional implementation, the temperature acquisition module 101 employs a digital temperature sensor. The digital temperature sensor supports a single-bus protocol and can directly output temperature parameters in digital form. It eliminates the need for additional constant current sources, bridge circuits, or compensation circuits, and does not occupy a high-precision analog-to-digital conversion channel. Its simple peripheral circuitry makes it more suitable for miniaturized, sealed solid-state non-polarized electrode detection devices. The digital temperature sensor can use a metal-encapsulated probe, embedded through a threaded hole for easy sealing, moisture protection, and field use. Its digital interface requires only a few leads for communication, which helps improve the device's sealing reliability and anti-interference capabilities.

[0032] In this implementation, by employing a digital temperature sensor installed within the threaded hole of the metal end cap, the temperature acquisition module 101 can respond quickly and accurately to changes in electrolyte temperature, providing reliable temperature parameters for subsequent pH temperature compensation. The digital output characteristics and single-bus interface of the digital temperature sensor simplify the peripheral circuit design, reduce the number of sealing leads, and improve the reliability and sealing of the device in complex field environments.

[0033] As an optional implementation, the humidity acquisition module 102 employs a capacitive humidity sensor. Changes in humidity cause changes in the sensor's capacitance. This capacitance change is converted into a frequency signal by an external oscillation circuit. The frequency changes with humidity, and the main control unit 100 reads this frequency signal through a timer input capture interface and converts it into a humidity value. Capacitive humidity sensors are small, low-power, and easy to install against walls, making them suitable for embedding in sealed cavities. The frequency signal is less susceptible to cable voltage drop, analog-to-digital conversion accuracy, and common-mode noise during long-wire transmission and in outdoor electromagnetic interference environments, making it suitable for distributed wiring scenarios involving the device and internal sensors with solid non-polarized electrodes. A hydrophobic and breathable membrane or a waterproof and breathable protective cover can be installed on the outside of the capacitive humidity sensor to allow moisture to enter the detection area while preventing droplets, salt spray, and electrolyte splashes from directly contaminating the sensitive layer, thus improving the sensor's long-term stability in saline and humid environments.

[0034] This implementation method, by employing a capacitive humidity sensor mounted on the inner wall of the housing with the sensitive surface facing the internal air cavity, can capture sudden humidity changes caused by seal failure in situ, promptly reflecting changes in the sealing state of the solid non-polarizable electrode and the water content of the electrolyte. The frequency signal output method enhances the reliability of signal transmission in complex electromagnetic environments in the field, and the addition of a hydrophobic and breathable membrane or a waterproof and breathable protective cover improves the long-term stability of the sensor in saline and humid environments.

[0035] As an optional implementation, the pH acquisition module 103 uses an ion-sensitive field-effect transistor (FET) as the core sensor, combined with a solid polymeric electrolyte composite reference electrode, to form a glass-free solid-state pH detection system. The FET, being a glass-free solid-state structure, eliminates the fragility of the glass bulb in traditional glass pH electrodes, offering better impact and vibration resistance, making it suitable for field transport and installation inside a solid non-polarized electrode. Its small size allows for easy suspension and fixation in the upper region of the electrolyte via a support, without significantly altering the internal structure of the solid non-polarized electrode. The FET, in conjunction with the solid polymeric electrolyte composite reference electrode, forms a glass-free solid-state pH detection system, reducing the need for regular KCl replenishment, glass membrane maintenance, and liquid junction blockage issues associated with traditional glass pH electrodes, making it more suitable for applications with limited field maintenance conditions. The pH parameter, in analog voltage form, output by the FET is amplified by a low-temperature drift instrumentation amplifier and then converted into a digital signal by a high-precision differential analog-to-digital converter module 105 for reading by the main control unit 100.

[0036] This implementation method, by employing an ion-sensitive field-effect transistor in conjunction with a solid polymeric electrolyte composite reference electrode, achieves miniaturization, solidification, and low-maintenance of the pH acquisition module 103, adapting to the unique detection environment of the solid non-polarized electrode, which is confined, humid, saline, and prone to vibration. By fixing the ion-sensitive field-effect transistor in the upper part of the electrolyte, deposits are prevented from covering the sensitive surface, ensuring long-term measurement stability.

[0037] As an optional implementation, the resistance acquisition module 104 uses a four-wire bridge circuit for resistance measurement. The four-wire bridge circuit includes a constant current source circuit with adjustable output current. By applying a constant current to one pair of leads and measuring voltage on the other pair, the four-wire bridge circuit effectively eliminates the influence of lead resistance and contact resistance on the measurement results. The resistance parameters in the form of differential voltage output from the four-wire bridge circuit are output to the analog-to-digital converter module 105. The differential voltage range corresponds to a certain resistance value range, and the differential voltage is converted into a digital signal by the analog-to-digital converter module 105 for reading by the main control unit 100. The four-wire bridge circuit reduces measurement errors caused by temperature changes and wire resistance.

[0038] This implementation method, by using a four-wire bridge circuit for resistance measurement, effectively eliminates the influence of lead resistance and contact resistance on measurement accuracy, improves the accuracy and reliability of resistance parameter acquisition, and provides accurate resistance parameters for subsequent performance status index calculation.

[0039] As an optional implementation, the analog-to-digital converter (ADC) 105 employs a Δ-Σ type high-precision ADC. The Δ-Σ type ADC is a high-resolution ADC that supports multi-channel synchronous sampling, with a maximum sampling rate sufficient for high-speed dynamic signal capture and a high signal-to-noise ratio. The Δ-Σ type ADC communicates with the main control unit 100 via an SPI interface. Upon power-up, the ADC 105 defaults to a preset sampling rate. Its operating mode (high-speed mode, high-precision mode, or low-power mode) can be modified on an external device, allowing real-time setting of the sampling rate. The ADC 105 continuously outputs raw data.

[0040] This implementation method, by employing a Δ-Σ type high-precision analog-to-digital converter, achieves high-precision analog-to-digital conversion of the analog signals output from the pH acquisition module 103 and the resistance acquisition module 104, meeting the requirements for high-speed dynamic signal capture. Multi-channel synchronous sampling capability allows multiple sensor signals to be acquired simultaneously, ensuring the temporal synchronization of various parameters. Configurable operating modes enable the device to flexibly adjust the sampling rate and power consumption according to different application scenarios.

[0041] As an optional implementation, the wireless communication module 107 employs a Wi-Fi module. The Wi-Fi module supports wireless network protocols, has a built-in TCP / IP protocol stack, and connects to the main control unit 100 via a USART interface. The Wi-Fi module can be configured in AP mode or STA mode. The Wi-Fi module is used for data interaction with external devices (such as Wi-Fi tablets), receiving configuration parameters (including fault mode coefficients, reference values, performance status index calculation models, etc.) sent by the external devices, and uploading collected parameter data and calculated performance status indices to the external devices. The Wi-Fi module also supports OTA firmware upgrades; external devices can send new firmware in packets, which the Wi-Fi module receives, verifies, and flashes. One external device can communicate simultaneously with multiple multi-parameter detection devices for solid-state non-polarized electrodes, enabling one-to-many remote monitoring and data acquisition.

[0042] This implementation method utilizes a Wi-Fi module for wireless communication, enabling the device to remotely interact with external devices, allowing for remote parameter configuration, data reception, and firmware upgrades. The "one master, multiple slaves" IoT architecture allows a single external device to simultaneously monitor the status of multiple solid non-polarizable electrodes, significantly improving detection efficiency in field exploration. The OTA firmware upgrade function allows for firmware updates without disassembling the device, reducing maintenance costs.

[0043] As an optional implementation, the main control unit 100 employs a microcontroller. The microcontroller is a 32-bit ARM processor with abundant communication interfaces (USART, SPI, SDIO, I2C, etc.) and GPIO resources, and sufficient flash memory and static random access memory. The main control unit 100 controls the temperature acquisition module 101 via a single-bus protocol to read the temperature parameters output by the digital temperature sensor. The main control unit 100 reads the frequency signal output by the humidity acquisition module 102 via a timer input capture interface and converts the frequency value into humidity parameters. The main control unit 100 controls the analog-to-digital converter module 105 via an SPI interface to read the analog-to-digital conversion results of the pH and resistance parameters output by the analog-to-digital converter. The main control unit 100 communicates with the wireless communication module 107 via a USART interface to achieve data interaction with external devices. The main control unit 100 controls the display module 108 via a parallel interface to drive the LCD screen to display the acquired parameter data and performance status index.

[0044] In this embodiment, the main control unit 100 drives the data storage module 106 through the SDIO interface to store the collected data into a large-capacity SD card in chronological order, and the file system is ported to support standard file formats.

[0045] In this implementation, a microcontroller is used as the main control unit 100. Its abundant communication interfaces and GPIO resources meet the needs of multi-module collaborative control, while the large memory and flash memory provide ample space for data caching and program execution. The reasonable allocation of each communication interface enables the acquisition and control modules to work together efficiently and stably.

[0046] As an optional implementation, the multi-parameter detection device for solid-state non-polarized electrodes provided in this application embodiment further includes a power supply module. The power supply module is powered by a rechargeable battery. The power supply module provides positive and negative voltages (e.g., ±15V and ±5V) to the analog circuits, employing a rail-to-rail operational amplifier. The positive and negative voltages are obtained from the rechargeable battery via a DC-DC module, requiring low noise. The power supply module provides low-voltage power (e.g., 5V and 3.3V) to the digital circuits, employing a low-dropout linear regulator with low ripple, suitable for digital circuits with low dropout and low power. The power supply module uses an isolated power supply module to reduce ripple and eliminate common-mode interference.

[0047] This implementation method, employing a multi-stage power supply scheme combining rechargeable battery power with DC-DC boost and low-dropout linear regulator step-down, satisfies the different power supply requirements of analog circuits (requiring low-noise power) and digital circuits (requiring low-voltage stable power). The use of isolated power supply modules reduces power ripple, eliminates common-mode interference, and improves the accuracy and stability of analog signal acquisition.

[0048] As an optional implementation, see [link to implementation details]. Figure 2 This application provides specific mounting structures for each sensor on the electrode tank: The electrode container refers to a tank container used to house a solid non-polarizable electrode. The multi-parameter detection device for the solid non-polarizable electrode described in this application is installed in the electrode container for multi-parameter detection of the solid non-polarizable electrode inside the electrode container. The electrode container includes a PVC shell 6, which contains an electrolyte 8. A metal end cap (not separately labeled in the figure) is provided on the top of the PVC shell 6. An insulating cap 5 is provided above the metal end cap, and a sealing cover 4 is provided above the insulating cap 5. The sealing cover 4 is sealed by tightening with fixing screws 3.

[0049] The digital temperature sensor in the temperature acquisition module 101 is embedded in a dedicated threaded hole at the center of the metal end cap on the top of the electrode tank. It is tightened to ensure a tight fit between the sensor probe and the metal end cap. Thermally conductive silicone is filled into the contact surface to enhance heat conduction efficiency, ensuring that only a single metal wall separates the digital temperature sensor from the electrolyte 8. The thermal response time constant is no greater than 0.5 seconds, guaranteeing accurate acquisition of the electrolyte 8's temperature parameters. The lead wires of the temperature acquisition module 101 are led out through a pre-drilled hole in the sealing cover 4 using aviation wire 1, ensuring a secure seal.

[0050] The capacitive humidity sensor in the humidity acquisition module 102 is installed in the upper-middle part of the inner wall of the PVC shell 6 of the electrode can, and is fixed tightly against the inner wall of the PVC shell 6 using waterproof adhesive or clips. The sensitive surface of the capacitive humidity sensor faces the internal air cavity of the electrode can, thereby capturing sudden humidity changes caused by seal failure in situ. The lead wire of the humidity acquisition module 102 is an aviation cable 1 that extends along the inner wall of the PVC shell 6 to the top sealing cover 4.

[0051] The ion-sensitive field-effect transistor in the pH acquisition module 103 is installed in the upper part of the core area of ​​the electrolyte 8 inside the electrode tank. It is positioned and fixed by a PVC support frame (not separately labeled in the figure) extending from the inner wall of the PVC shell 6, ensuring that the ion-sensitive field-effect transistor is completely immersed in the electrolyte 8 and in full contact with it, while preventing bottom deposits from covering the sensitive surface and ensuring long-term measurement stability. A ceramic plate 9 is provided at the bottom of the electrode tank, which serves as an insulating base for insulating and isolating the electrode tank. The leads of the pH acquisition module 103 are led out along the PVC support frame to the top sealing cover 4 using aviation wire 1, ensuring proper sealing and insulation protection.

[0052] The four-wire measurement leads of the resistance acquisition module 104 include copper wire 2 (current application lead) and lead wire 7 (voltage measurement lead). The copper wire 2 and the lead wire 7, along with the aviation wire 1, pass through the lead hole of the sealing cover 4. The lead length is adjusted to meet the requirements of the external detection circuit. The top sealing cover 4 and the insulating cap 5 are installed and tightened with the fixing screw 3 to achieve sealing protection of the lead part, preventing external solution from seeping into the electrode tank and avoiding leakage of the internal electrolyte 8.

[0053] The sensors feature the following optimized layouts designed for the unique working environment of solid-state non-polarizable electrodes: Temperature acquisition module 101 is fixed to the threaded hole of the metal end cap using thermally conductive silicone for rapid thermal response; Humidity acquisition module 102 is mounted close to the inner wall of the PVC shell 6 with its sensitive surface facing the air cavity for in-situ detection of seal failure; pH acquisition module 103 is fixed to the upper part of the electrolyte 8 using a PVC support frame to prevent deposits from covering it; Resistance acquisition module 104 uses copper wire 2 and lead wire 7 as four-wire leads with sealing protection to ensure measurement accuracy and sealing reliability. The installation method of each sensor establishes a direct causal relationship with its detection function; this function-oriented structural layout is an optimized design for the unique working environment of solid-state non-polarizable electrodes.

[0054] In one exemplary embodiment, such as Figure 3 and Figure 4 As shown, a multi-parameter detection method for a solid non-polarizable electrode is provided, employing the aforementioned multi-parameter detection device for a solid non-polarizable electrode. The complete operation procedure is described in [reference needed]. Figure 2 The process includes: installing each acquisition module onto the electrode container of the solid non-polarizable electrode and then powering on the system; setting the parameters of each module using a Wi-Fi tablet, followed by a self-test and system startup; automatically calculating the performance status index based on the acquired module values, with the Wi-Fi tablet displaying the settings, measured values, and performance status index in real time; sending an error message to the Wi-Fi tablet if the performance status index falls below the set threshold; and retrieving historical measurement values ​​from the SD card after the system has finished operating. For specific testing methods within the complete above operation procedure, please refer to [link to relevant documentation]. Figure 4 Specifically, this includes steps 201 to 205. Wherein: Step 201: The temperature parameters of the solid non-polarized electrode are collected by the temperature acquisition module 101, the humidity parameters of the solid non-polarized electrode are collected by the humidity acquisition module 102, the pH parameters of the solid non-polarized electrode are collected by the pH acquisition module 103, and the resistance parameters of the solid non-polarized electrode are collected by the resistance acquisition module 104.

[0055] In this embodiment, a multi-parameter detection device for a solid non-polarizable electrode is installed on the solid non-polarizable electrode to be tested. Each acquisition module begins operation after power-on. The digital temperature sensor in temperature acquisition module 101 communicates with the main control unit 100 via a single-bus protocol. The main control unit 100 reads the temperature parameters according to a preset sampling period (e.g., once per second). The capacitive humidity sensor in humidity acquisition module 102 outputs a square wave signal whose frequency varies with humidity via an external oscillation circuit. The timer input capture interface of the main control unit 100 captures the frequency value of this square wave signal and converts it into a humidity parameter based on the calibration relationship between frequency and humidity. The ion-sensitive field-effect transistor in pH acquisition module 103 outputs a voltage signal corresponding to the pH value. This voltage signal is amplified by a low-temperature drift instrumentation amplifier and input to the analog-to-digital conversion module 105. The main control unit 100 reads the analog-to-digital conversion result via the SPI interface to obtain the digital data of the pH parameter. The four-wire bridge circuit in the resistance acquisition module 104 outputs a differential voltage signal corresponding to the resistance value to the analog-to-digital conversion module 105. The main control unit 100 reads the analog-to-digital conversion result through the SPI interface to obtain the digital data of the resistance value parameter.

[0056] The parameters of the above four dimensions are collected within the same detection cycle, ensuring the synchronization of each parameter in time.

[0057] In step 202, the pH acquisition module 103 outputs the acquired pH value parameter (analog voltage signal) to the analog-to-digital converter module 105, and the resistance acquisition module 104 outputs the acquired resistance parameter (differential voltage signal) to the analog-to-digital converter module 105. The analog-to-digital converter module 105 converts the pH value parameter and resistance parameter into digital signals and outputs them to the main control unit 100. The temperature acquisition module 101 outputs the acquired temperature parameter (digital signal) to the main control unit 100, and the humidity acquisition module 102 outputs the acquired humidity parameter (frequency signal) to the main control unit 100. Through the above signal transmission path, the main control unit 100 can acquire the digital data of all parameters, preparing for subsequent processing.

[0058] Step 203: The main control unit 100 performs temperature compensation on the pH value parameter based on the temperature parameter to obtain the compensated pH value parameter.

[0059] In this embodiment, after the main control unit 100 acquires the temperature value T output by the temperature acquisition module 101, it performs temperature compensation on the raw pH data output by the pH acquisition module 103. The pH voltage output slope of the ion-sensitive field-effect transistor is affected by temperature; the main control unit 100 uses a slope S calibrated at 25°C. 25 Using this as a baseline, calculate the compensation slope at the current temperature: ; The main control unit 100 calculates the temperature-compensated pH value according to the following formula: ; in, This represents the current output voltage value of the ion-sensitive field-effect transistor. To calibrate the output voltage value under solution conditions, The pH value of the calibration solution is determined. If the output direction of the signal conditioning circuit is reversed, the sign direction in the formula is determined by the factory calibration. Through the above temperature compensation, the influence of temperature changes on pH measurement results can be effectively reduced, improving the accuracy of pH value detection.

[0060] Step 204: The main control unit 100 calculates the scores of various fault modes of the solid non-polarizable electrode based on the humidity parameter, the compensated pH value parameter, and the resistance parameter, and calculates the performance status index of the solid non-polarizable electrode based on the scores of all fault modes.

[0061] In this embodiment, the main control unit 100 first preprocesses the collected parameters. The main control unit 100 reads the reference humidity value stored in the data storage module 106. Reference pH value Reference resistance value and reference temperature value And calculate the normalized deviation of each parameter, where: Normalized humidity decrease bias Humidity rise deviation pH deviation Resistance deviation Temperature deviation and resistance change deviation Calculate them separately as follows: ; ; ; ; ; ; in, The current humidity value collected by the humidity acquisition module 102. For reference humidity value, Allowable deviation for humidity decrease Allowable deviation for humidity increase; This is the pH value after temperature compensation. For reference pH value, pH tolerance; The resistance value acquired by the resistance acquisition module 104 is the current resistance value. For reference resistance value, This refers to the allowable tolerance of the resistance. The current temperature value collected by the temperature acquisition module 101. For reference temperature value, Temperature tolerance; This refers to the resistance value from the previous detection cycle or the previous stable detection cycle. This represents the allowable deviation for short-time changes in resistance. The above allowable deviations and reference values ​​are obtained from factory calibration, pre-use calibration, historical data, or external device parameter configuration.

[0062] The main control unit 100 further calculates the scores for each fault mode.

[0063] Electrolyte drying and water loss fault score for: ; When internal humidity decreases and resistance increases, it indicates a decrease in the water content of the electrolyte and a weakening of ion migration ability. Therefore, by... and The coupling terms improve the failure mode score. , , For failure mode coefficients.

[0064] Sealing failure and seepage fault score for: ; When internal humidity suddenly increases, accompanied by a deviation in pH or a step change in resistance, it indicates that external moisture may have entered the solid non-polarizable electrode, causing electrolyte dilution, contamination, or a change in local conductivity. This judgment does not require an increase in resistance, but rather uses the combination of increased humidity with sudden changes in pH or resistance for identification. , , This represents the failure mode coefficient.

[0065] Electrolyte contamination or chemical failure fault score for: ; When the pH value deviates significantly from the reference value, but the resistance value is not yet significantly abnormal, it indicates that the electrolyte acid-base environment or chemical composition may have changed, but the conductive pathway has not yet been severely degraded. , This represents the failure mode coefficient.

[0066] Metal / electrolyte interface contact degradation fault score for: ; When the resistance increases abnormally, but the humidity decrease and pH deviation are both small, it indicates that the abnormality is more likely caused by metal surface oxidation, poor interface contact, local detachment, or abnormal contact of the sampling lead. , This represents the failure mode coefficient.

[0067] Temperature drift affects fault score for: ; in, This represents the normalized deviation of the original pH output voltage relative to the reference voltage. When the temperature deviation is large and the original pH output changes synchronously with the temperature, the main control unit 100 prioritizes using the temperature compensation result for correction, rather than directly determining it as a failure of the solid non-polarizable electrode body. , This represents the failure mode coefficient.

[0068] The above , , , , , , , , , , , These are all failure mode coefficients, determined based on the type of solid non-polarizable electrode, factory calibration results, comparative experimental results, or historical test data, and updated through external equipment.

[0069] In the specific judgment process, the main control unit 100 identifies each fault mode according to the following rules: First, if the internal humidity decreases in a deviated manner Corresponding humidity value Continuously below the reference humidity value Subtract the allowable deviation of humidity decrease (e.g., consistently less than) (corresponding to a relative deviation of less than -20%), and the compensated resistance deviation Corresponding resistance value Greater than the reference resistance value Plus resistance tolerance (e.g., greater than) If the relative deviation is greater than +30%, it is determined to be an electrolyte shrinkage and water loss fault. The reason is that after the water content inside the solid non-polarizable electrode decreases, the electrolyte ion migration ability decreases, which usually leads to an increase in the electrode internal resistance or the metal / electrolyte interface resistance.

[0070] Second, if the internal humidity rises abnormally... Corresponding humidity value Greater than the reference humidity value Plus the allowable deviation for humidity increase (e.g., greater than) (corresponding to a relative deviation greater than +20%), or a sudden increase in humidity within a short period of time (i.e., a sudden change in resistance deviation). The difference between the current resistance value and the resistance value in the previous detection cycle exceeds the allowable deviation for short-term resistance changes. ), and pH deviation Or resistance sudden deviation If a step change occurs exceeding a set threshold, it is determined to be a sealing failure or an external moisture infiltration fault. The resistance is not necessarily required to increase, as external moisture infiltration may cause electrolyte dilution, contaminant entry, or localized enhanced conductivity, resulting in a possible increase or temporary decrease in resistance. Therefore, a combined judgment method of "sudden increase in humidity + abnormal change in pH or resistance" is more suitable.

[0071] Third, if the pH value deviates after temperature compensation The corresponding pH value deviates from the reference pH value Exceeding the pH tolerance (e.g., greater than) (corresponding to an absolute deviation greater than ±2.0), and resistance deviation Humidity decrease deviation and humidity rise deviation If all values ​​are within the normal range, the fault is determined to be due to electrolyte contamination or chemical failure. This is because a significant deviation of the pH value from the normal range indicates a change in the electrolyte's acid-base environment, but the resistance and humidity are not significantly abnormal, indicating that the conductive pathway and water content have not yet deteriorated significantly. The fault primarily stems from abnormal electrolyte composition.

[0072] Fourth, if the compensated resistance deviation Corresponding resistance value Greater than the reference resistance value Plus resistance tolerance (e.g., greater than) (corresponding to a relative deviation greater than +30%), but the humidity decrease deviation Humidity rise deviation pH deviation If all values ​​are within the normal range, the fault is determined to be a deterioration of the metal / electrolyte interface contact or an abnormal lead contact. This is because, under the condition that the electrolyte humidity and acid-base status are basically normal, an increase in resistance alone is more likely to be caused by metal surface oxidation, poor interface contact, local detachment, or abnormal sampling lead connection.

[0073] Fifth, if the temperature deviation Corresponding temperature value Deviation from reference temperature value Exceeding the allowable temperature deviation (e.g., greater than) If the absolute deviation is greater than ±10℃, and the original pH output voltage drifts synchronously with temperature, but the pH value returns to normal after temperature compensation, then it is determined to be due to temperature drift, rather than directly to the failure of the solid non-polarizable electrode. This is because the output slope of the pH sensor is affected by temperature; temperature changes cause pH measurement results to deviate, therefore, it is necessary to combine the results after temperature compensation for judgment.

[0074] The main control unit 100 calculates the performance status index EHI according to the following formula: ; when The closer the value is to 100, the closer the performance of the solid-state non-polarizable electrode is to normal; when... A decrease indicates that the score for at least one failure mode has increased.

[0075] Step 205: Output the fault code corresponding to the highest performance status index and fault mode score through the display module 108 and the wireless communication module 107.

[0076] In this embodiment, the main control unit 100 calculates the performance status index. Afterwards, The values ​​and the fault codes corresponding to the highest scores among the various fault modes are sent to the display module 108 and the wireless communication module 107. The display module 108 is an LCD screen that displays in real time the temperature, humidity, pH, and resistance values ​​collected during the current period, as well as the calculated performance status index. And fault codes. The wireless communication module 107 uploads the above data to an external device, where it is displayed synchronously. When When the value is below a preset threshold, the main control unit 100 sends an alarm signal to an external device via the wireless communication module 107.

[0077] The correspondence between fault codes and fault modes is as follows: When When the score is at its highest, fault code 1 is output, indicating electrolyte shrinkage and water loss; when... When the score is the highest, fault code 2 is output, indicating a seal failure and seepage; when... When the score is highest, fault code 3 is output, indicating electrolyte contamination or chemical failure; when... When the score is highest, fault code 4 is output, indicating deterioration of the metal / electrolyte interface contact; when... When the score is the highest, fault code 5 is output, indicating the influence of temperature drift.

[0078] By implementing steps 201 to 205 above, the multi-parameter detection method for solid non-polarizable electrodes provided in this application achieves comprehensive detection of the solid non-polarizable electrode through the synchronous acquisition of four-dimensional parameters (temperature, humidity, pH, and resistance). Temperature compensation improves the accuracy of pH detection. The fault mode matching performance state index algorithm does not simply linearly weight the deviations of each parameter, but calculates the score of each fault mode according to the typical failure mechanism of the solid non-polarizable electrode, and uses the highest fault mode score to determine the health status and fault cause of the solid non-polarizable electrode. This allows the detection results to not only quantify the overall performance status of the solid non-polarizable electrode, but also to locate the fault cause based on the multi-parameter coupling relationship, improving the accuracy and interpretability of the detection results. The dual-channel output of the display module 108 and the wireless communication module 107 enables local real-time viewing and remote synchronous monitoring of the detection results.

[0079] As an optional implementation, the multi-parameter detection method for solid non-polarizable electrodes provided in this application further includes: after each power-on of the multi-parameter detection device for the solid non-polarizable electrode, first collecting ambient temperature and ambient humidity parameters. When the solid non-polarizable electrode has not yet been inserted into the electrolyte, the main control unit 100 automatically uses the currently collected ambient temperature and ambient humidity parameters as a reference zero point and dynamically adjusts the reference humidity value in the performance state index calculation formula. and reference temperature value .

[0080] In this implementation method, the device can adaptively adjust the reference zero point according to the current environmental conditions through the automatic calibration function upon power-on, eliminating the influence of differences in ambient temperature and humidity under different usage environments on the test results, and improving the accuracy of the test and environmental adaptability.

[0081] As an optional implementation method, the multi-parameter detection method for solid non-polarizable electrodes provided in this application further includes: after each detection, calculating the performance state index of the current detection. Temperature, humidity, pH, and resistance parameters are stored in the data storage module 106. Once the accumulated number of tests reaches a preset number (e.g., 10 times), the main control unit 100 automatically calculates the performance status index. The moving average. If the performance status index is consistently high over multiple periods (e.g., 3 times), the moving average... If the performance of a solid non-polarizable electrode decreases and the decrease exceeds a preset threshold (e.g., 10%), the main control unit 100 will output a "performance degradation warning" message through the display module 108 and the wireless communication module 107.

[0082] In this implementation method, through the long-term drift learning function, the device can automatically track the long-term change trend of the performance state of the solid non-polarized electrode and issue an early warning when the performance of the solid non-polarized electrode shows a significant decline trend. This provides a scientific basis for the maintenance and replacement of the solid non-polarized electrode and avoids the impact of sudden failure of the solid non-polarized electrode on exploration work.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multi-parameter detection device for a solid non-polarizable electrode, characterized in that, The multi-parameter detection device for the solid non-polarizable electrode includes: The main control unit is used to receive and process all the collected parameters, and calculate the performance state index of the solid non-polarizable electrode based on the parameters. A temperature acquisition module is used to acquire the temperature parameters of the solid non-polarizable electrode and output the acquired temperature parameters to the main control unit. A humidity acquisition module is used to acquire the humidity parameters of the solid non-polarizable electrode and output the acquired humidity parameters to the main control unit. A pH value acquisition module is used to acquire the pH value parameter of the solid non-polarizable electrode and output the acquired pH value parameter to an analog-to-digital conversion module. A resistance acquisition module is used to acquire the resistance parameters of the solid non-polarizable electrode and output the acquired resistance parameters to the analog-to-digital conversion module. An analog-to-digital conversion module is used to convert the received pH value parameter and the resistance parameter into digital signals and then output them to the main control unit. A data storage module, which is connected to the main control unit, is used to store the collected data.

2. The multi-parameter detection device for a solid non-polarizable electrode according to claim 1, characterized in that, The multi-parameter detection device for the solid non-polarizable electrode also includes: A wireless communication module, which is connected to the main control unit, is used for data interaction with external devices; The display module is connected to the main control unit and is used to display the collected data and the performance status index.

3. The multi-parameter detection device for a solid non-polarizable electrode according to claim 1, characterized in that, The temperature acquisition module uses a digital temperature sensor, which is installed in the threaded hole of the top metal end cap of the solid non-polarized electrode and contacts the metal end cap through a heat-conducting medium. The humidity acquisition module uses a capacitive humidity sensor, which is installed on the inner wall of the housing of the solid non-polarized electrode, with the sensitive surface of the capacitive humidity sensor facing the internal air cavity of the solid non-polarized electrode.

4. The multi-parameter detection device for a solid non-polarizable electrode according to claim 1, characterized in that, The pH acquisition module uses an ion-sensitive field-effect transistor, in conjunction with a solid polymeric electrolyte composite reference electrode, which is fixed to the upper part of the electrolyte of the solid non-polarizable electrode by a bracket.

5. The multi-parameter detection device for a solid non-polarizable electrode according to claim 1, characterized in that, The resistance acquisition module adopts a four-wire bridge circuit, which includes a constant current source circuit. The four-wire bridge circuit outputs a differential voltage signal to the analog-to-digital conversion module.

6. A multi-parameter detection method for a solid non-polarizable electrode, characterized in that, The multi-parameter detection device using the solid non-polarizable electrode according to any one of claims 1-5 includes: The temperature parameters of the solid non-polarized electrode are collected by the temperature acquisition module, the humidity parameters of the solid non-polarized electrode are collected by the humidity acquisition module, the pH parameters of the solid non-polarized electrode are collected by the pH acquisition module, and the resistance parameters of the solid non-polarized electrode are collected by the resistance acquisition module. The pH value acquisition module outputs the acquired pH value parameter to the analog-to-digital converter module; the resistance acquisition module outputs the acquired resistance parameter to the analog-to-digital converter module; the analog-to-digital converter module converts the pH value parameter and the resistance parameter into digital signals and outputs them to the main control unit; the temperature acquisition module outputs the acquired temperature parameter to the main control unit; the humidity acquisition module outputs the acquired humidity parameter to the main control unit. The main control unit performs temperature compensation on the pH value parameter based on the temperature parameter to obtain the compensated pH value parameter. The main control unit calculates the scores of various fault modes of the solid non-polarizable electrode based on the humidity parameter, the compensated pH value parameter, and the resistance parameter, and calculates the performance status index of the solid non-polarizable electrode based on all the fault mode scores. The display module and wireless communication module output the performance status index and the fault code corresponding to the highest of the fault mode scores.

7. The multi-parameter detection method for a solid non-polarizable electrode according to claim 6, characterized in that, The step of temperature compensation of the pH value parameter by the main control unit based on the temperature parameter to obtain the compensated pH value parameter includes: Obtain the temperature value output by the temperature acquisition module. ; Obtain the voltage value output by the pH value acquisition module. ; Calculate the compensation slope at the current temperature using the following formula. : ； in, The slope of the pH voltage output calibrated at 25°C; Calculate the compensated pH value using the following formula. : ； in, To calibrate the output voltage value under solution conditions, The pH value of the calibration solution.

8. The multi-parameter detection method for a solid non-polarizable electrode according to claim 6, characterized in that, The main control unit calculates multiple fault mode scores for the solid non-polarizable electrode based on the humidity parameter, the compensated pH value parameter, and the resistance parameter, including: Calculate the humidity drop deviation Humidity rise deviation pH deviation Resistance deviation Temperature deviation and resistance change deviation ; Among them, the humidity decrease deviation The humidity increase deviation is calculated based on the difference between the reference humidity and the current humidity relative to the allowable deviation of humidity decrease; The pH value deviation is calculated based on the difference between the current humidity and the reference humidity relative to the allowable deviation of humidity increase; The resistance deviation is calculated based on the difference between the compensated pH value and the reference pH value relative to the allowable pH deviation; The temperature deviation is calculated based on the difference between the current resistance value and the reference resistance value relative to the allowable resistance deviation; The resistance abrupt change deviation is calculated based on the difference between the current temperature value and the reference temperature value relative to the allowable temperature deviation; It is calculated based on the difference between the current resistance value and the resistance value in the previous detection cycle relative to the allowable deviation of short-time sudden change in resistance; Calculate the electrolyte shrinkage and water loss fault score using the following formulas. Score for sealing failure and seepage fault Electrolyte contamination or chemical failure fault score Score for metal or electrolyte interface contact degradation fault Temperature drift affects fault score : ； ； ； ； ； in, , , , , , , , , , , , All are failure mode coefficients. This represents the normalized deviation of the original pH output voltage relative to the reference voltage. The performance status index satisfy: 。 9. The multi-parameter detection method for a solid non-polarizable electrode according to claim 6, characterized in that, The multi-parameter method for the solid non-polarizable electrode also includes: The multi-parameter detection device for the solid non-polarizable electrode collects ambient temperature and humidity each time it is powered on; When the solid non-polarizable electrode has not yet been inserted into the electrolyte, the currently collected ambient temperature and humidity are used as the reference zero point, and the reference temperature and reference humidity in the performance state index calculation formula are dynamically adjusted.

10. The multi-parameter detection method for a solid non-polarizable electrode according to claim 6, characterized in that, The multi-parameter method for the solid non-polarizable electrode also includes: After each test, the performance status index, temperature parameter, humidity parameter, pH value parameter and resistance parameter of this test are stored in the data storage module; Once the cumulative number of tests reaches a preset number, the moving average of the performance status index is calculated. When the performance status index decreases repeatedly and the decrease exceeds a preset threshold, the display module and the wireless communication module output a warning message about the performance degradation of the solid non-polarizable electrode.

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