Detection system for state of composite electrode
By integrating internal resistance, potential, and temperature detection units, the problem of insufficient early warning and cumbersome detection in composite electrode condition assessment is solved, realizing multi-dimensional scientific assessment and real-time alarm of composite electrode health status, and improving detection efficiency.
Patent Information
- Application Number
- CN202522328174.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-11-03
AI Technical Summary
Existing composite electrodes lack an early warning mechanism when their performance degrades during use, rely on manual experience, and cannot be continuously monitored online, resulting in cumbersome, subjective, and quantitative testing.
It integrates internal resistance, potential and temperature detection units, comprehensively evaluates the state parameters of the composite electrode through signal processing module and control and calculation module, and provides real-time alarms through interactive module.
It enables multi-dimensional, scientific, and accurate assessment of the health status of composite electrodes, simplifies the testing process, and is suitable for rapid diagnosis and maintenance in industrial settings.
Smart Images
Figure CN223692317U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrochemistry detection technical field, especially a kind of detection system of composite electrode state. BACKGROUND
[0002] Composite electrode, for example, the core part of commonly used electrochemical sensor such as pH meter, ion selective electrode, is the composite structure that indicator electrode, reference electrode and electrolyte system are integrated in one body.In long-term use process, composite electrode can be caused by electrolyte consumption, sensitive film aging, reference system pollution or blockage and so on Reason leads to performance decline, response delay, measurement inaccuracy, until final failure.
[0003] At present, the state judgment of composite electrode is mostly dependent on the experience of user, or indirectly evaluated by regularly using standard solution to calibrate.This method has the following shortcomings:
[0004] 1. only when electrode performance seriously declines, leading to calibration failure, problem can be found, early warning cannot be achieved;
[0005] 2. rely on artificial judgment, lack objective, quantitative index;
[0006] 3. need to prepare standard solution and carry out calibration operation, process is complicated, not suitable for online continuous monitoring.
[0007] Therefore, a kind of detection system of composite electrode state is proposed. UTILITY MODEL CONTENT
[0008] The present specification provides a kind of detection system of composite electrode state, by the detection unit of integration internal resistance, potential and temperature three key parameters, can be from multiple dimensions Comprehensive reflection the health condition of composite electrode.
[0009] The present specification provides a kind of detection system of composite electrode state, comprising:
[0010] Detection module is used to connect with the composite electrode to be measured, and the internal resistance, potential and temperature three state parameters of the composite electrode are collected;
[0011] Signal processing module is electrically connected with the detection module, for receiving and processing the state parameter, and converting it into identifiable state data;
[0012] Control and operation module is connected with the signal processing module, for receiving the state data, and according to preset algorithm calculation obtains the health state index of the composite electrode;
[0013] Interaction module is connected with the control and operation module, for displaying the health state index and / or issuing state alarm.
[0014] Optionally, the detection module comprises an internal resistance detection unit, a potential detection unit, and a temperature detection unit, the internal resistance detection unit is connected with the potential detection unit, and the potential detection unit is connected with the temperature detection unit.
[0015] The internal resistance detection unit comprises a relay U1, the relay U1 is electrically connected with a resistor R1 and an amplifier U2 respectively, the resistor R1 is electrically connected with a capacitor C1 and an inductor L1 respectively, the amplifier U2 is electrically connected with a resistor R2, the resistor R2 is electrically connected with a capacitor C2, and the capacitor C2 is electrically connected with the potential detection unit.
[0016] Optionally, the potential detection unit comprises a resistor R3 and a resistor R4 which are electrically connected with the capacitor C2, the resistor R3 is electrically connected with the resistor R4, a resistor R5, a capacitor C3, and a capacitor C4 respectively, the resistor R5 is electrically connected with an amplifier U3, the amplifier U3 is electrically connected with a capacitor C5, a resistor R7, and a resistor R8 respectively, the capacitor C5 is electrically connected with a resistor R6 and a capacitor C6 respectively, the resistor R7 is electrically connected with a capacitor C7 and the amplifier U4 respectively, and the amplifier U4 is electrically connected with the temperature detection unit.
[0017] Optionally, the temperature detection unit comprises a resistor R14 and a resistor R10 which are electrically connected with the amplifier U4, the resistor R14 is electrically connected with a resistor R12 and a resistor R13 respectively, the resistor R10 is electrically connected with the resistor R12, a resistor R11, and a resistor R9 respectively, the resistor R13 is electrically connected with the resistor R11 and a resistor R15 respectively, the resistor R15 is electrically connected with a thermistor R16, the resistor R9 is electrically connected with the thermistor R16, and the thermistor R16 is electrically connected with the signal processing module.
[0018] Optionally, the signal processing module comprises a resistor R17 which is electrically connected with the thermistor R16, the resistor R17 is electrically connected with a capacitor C8 and a triode D1 respectively, and the triode D1 is electrically connected with a resistor R18 and the control and operation module respectively.
[0019] Optionally, the control and operation module comprises a resistor R19 which is electrically connected with the triode D1, the resistor R19 is electrically connected with a microcontroller U5, and the microcontroller U5 is electrically connected with the interaction module.
[0020] Optionally, the interaction module comprises a light emitting diode D2 and a buzzer U6.
[0021] The utility model discloses, through the detection unit of integration internal resistance, potential and temperature three key parameters, can from multiple dimensions comprehensive reflection composite electrode's health condition. Internal resistance change directly reflects sensitive membrane aging and liquid connection boundary state, potential drift directly represents reference system's stability, combines temperature compensation, makes state evaluation result more scientific, accurate and reliable. Through acoustooptic alarm etc. Direct presentation, user does not need professional knowledge and complex operation can quickly obtain electrode state conclusion, greatly promotes the detection efficiency, especially suitable for the daily maintenance and rapid diagnosis of industrial field. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.
[0023] Figure 1 The overall structure schematic diagram of a composite electrode state detection system provided by the embodiment of the present application is shown.
[0024] Figure 2 The detailed structure schematic diagram of a composite electrode state detection system provided by the embodiment of the present application is shown.
[0025] The drawings show: 100, detection module; 110, internal resistance detection unit; 120, potential detection unit; 130, temperature detection unit; 200, signal processing module; 300, control and operation module; 400, interactive module. DETAILED DESCRIPTION
[0026] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variations can be thought by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the utility model.
[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variations can be thought by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the utility model. Figure 1 , Figure 2 Exemplary embodiments of the utility model are described more fully below. However, exemplary embodiments can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that the utility model can be more thoroughly and completely conveyed to those skilled in the art, so as to enable the utility model to be more fully and completely conveyed to those skilled in the art. The same reference numerals in the drawings represent the same or similar elements, components or parts, so repeated description will be omitted.
[0028] In the premise of conforming to the technical concept of the present application, the features, structures, characteristics or other details described in a certain specific embodiment are not excluded from being combined in one or more other embodiments in a suitable manner.
[0029] In the description of specific embodiments, the features, structures, characteristics or other details described by the present application are to enable those skilled in the art to fully understand the embodiments. However, it does not exclude that one or more of the skilled in the art can practice the technical solution of the present application without a specific feature, structure, characteristic or other detail.
[0030] The flowchart shown in the drawing is only an exemplary description, and does not necessarily include all contents and operations / steps, nor does it necessarily execute in the order described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may be changed according to the actual situation.
[0031] The block diagram shown in the drawing is only a functional entity, which does not necessarily correspond to a physically independent entity. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.
[0032] The term "and / or" or "and / or" includes all combinations of any one or more of the associated listed items.
[0033] The present application provides a composite electrode state detection system, comprising:
[0034] The detection module 100 is used to connect with the composite electrode to be detected, and collect the internal resistance, potential and temperature of the composite electrode.
[0035] The signal processing module 200 is electrically connected with the detection module 100, used to receive and process the state parameters, and convert them into identifiable state data.
[0036] The control and operation module 300 is connected with the signal processing module 200, used to receive the state data and calculate the health state index of the composite electrode according to the preset algorithm.
[0037] The interactive module 400 is connected with the control and operation module 300, used to display the health state index and / or issue a state alarm.
[0038] In the detailed description of the present specification, the detection module 100 is physically connected with the composite electrode to be measured through a standard BNC interface or a special clamp. The signal processing module 200 is usually composed of an operational amplifier, a filter circuit and an analog-to-digital converter (ADC), which receives the analog signal from the detection module 100, amplifies, filters and converts it into a digital signal. The control and operation module 300 is preferably an embedded microcontroller (MCU) such as an STM32 series chip, which has a preset judgment algorithm stored in it, for example: comparing the internal resistance value with an empirical threshold value, comparing the potential value with a stable range, and comprehensively determining the electrode as "good", "attention" or "replace". The interactive module 400 can be driven by the GPIO port of the MCU to output the final conclusion on an LCD display screen and / or an audible and light alarm.
[0039] Optionally, the detection module 100 includes an internal resistance detection unit 110, a potential detection unit 120 and a temperature detection unit 130, the internal resistance detection unit 110 is connected with the potential detection unit 120, and the potential detection unit 120 is connected with the temperature detection unit 130.
[0040] The internal resistance detection unit 110 includes a relay U1, the relay U1 is electrically connected with a resistor R1 and an amplifier U2 respectively, the resistor R1 is electrically connected with a capacitor C1 and an inductor L1 respectively, the amplifier U2 is electrically connected with a resistor R2, the resistor R2 is electrically connected with a capacitor C2, and the capacitor C2 is electrically connected with the potential detection unit 120.
[0041] In the detailed description of the present specification, the relay U1 is used to switch the measurement mode or apply an alternating excitation signal. The resistor R1, the capacitor C1 and the inductor L1 together constitute a filter and coupling network for generating or shaping an alternating test signal of a specific frequency applied to the electrode to avoid electrode polarization. The amplifier U2 is used to collect the response voltage signal across the electrode. The resistor R2 and the capacitor C2 constitute a low-pass filter to preliminarily filter the signal output by the amplifier U2, and then transmit it to the subsequent potential detection unit 120 for further processing. This circuit structure realizes accurate and non-destructive measurement of the internal resistance of the electrode.
[0042] Optionally, the potential detection unit 120 includes a resistor R3 and a resistor R4 electrically connected with the capacitor C2, the resistor R3 is electrically connected with the resistor R4, a resistor R5, a capacitor C3 and a capacitor C4 respectively, the resistor R5 is electrically connected with an amplifier U3, the amplifier U3 is electrically connected with a capacitor C5, a resistor R7 and a resistor R8 respectively, the capacitor C5 is electrically connected with a resistor R6 and a capacitor C6 respectively, the resistor R7 is electrically connected with a capacitor C7 and an amplifier U4 respectively, and the amplifier U4 is electrically connected with the temperature detection unit 130.
[0043] In the detailed description of the present specification, resistors R3 and R4 constitute a voltage divider or bias circuit to provide a suitable DC operating point for the high impedance signal. Resistors R5 and amplifier U3 form a high input impedance buffer stage or in-phase amplification stage, which is the key to measuring the potential of the composite electrode. The input impedance must be high enough to avoid the load effect on the electrode. Capacitors C3, C4, C5, C6 and resistors R6, R7, R8 together constitute a multi-stage filter network to suppress power frequency interference and environmental noise, and extract a stable electrode DC potential signal. Capacitor C7 can play a role in phase compensation, which can suppress the high-frequency phase shift that may be caused by the internal pole of the amplifier and the distribution parameters of the circuit board, ensure that amplifier U4 works in the linear region, avoid oscillation due to insufficient phase margin, and thus ensure the long-term reliable operation of the entire potential detection channel. Amplifier U4 as an output buffer or second-stage amplifier stably outputs the purified potential signal to the temperature detection unit 130 or the signal processing module 200.
[0044] Optionally, the temperature detection unit 130 includes resistors R14 and R10 electrically connected to the amplifier U4, the resistors R14 are respectively electrically connected to resistors R12 and R13, the resistor R10 is respectively electrically connected to resistors R12, R11 and R9, the resistor R13 is respectively electrically connected to the resistor R11 and resistor R15, the resistor R15 is electrically connected to the thermistor R16, the resistor R9 is electrically connected to the thermistor R16, and the thermistor R16 is electrically connected to the signal processing module 200.
[0045] In the detailed description of the present specification, resistors R9, R10, R12, R13 and thermistor R16 essentially form a Wheatstone bridge, which constitutes the four arms of the bridge. Amplifier U4 receives signals from the potential detection unit 120. Resistors R14 and R11 are used to set the gain of the amplifier or provide bias. When the temperature changes, the resistance of the thermistor R16 changes, causing the bridge to lose balance and generating a differential voltage signal related to the temperature. After subsequent amplification, the signal is output to the signal processing module 200 through resistors R15 and other elements. This bridge-type measurement circuit has the advantages of high sensitivity and good linearity.
[0046] Optionally, the signal processing module 200 includes a resistor R17 electrically connected to the thermistor R16, the resistor R17 is respectively electrically connected to a capacitor C8 and a triode D1, and the triode D1 is respectively electrically connected to a resistor R18 and the control and operation module 300.
[0047] In the detailed description of the present specification, the signal from the thermistor R16 is input through the resistor R17. The capacitor C8 plays a further decoupling and filtering role. The transistor D1 is an emitter follower or common emitter amplification circuit. The emitter follower can improve the load capacity and convert the high impedance signal source into a low impedance output; if it is an amplification circuit, it is used for amplifying small signals. Its output is coupled to the ADC input pin of the control and operation module 300 through the resistor R18, which completes the interface of the analog signal to the digital control system.
[0048] Optionally, the control and operation module 300 includes a resistor R19 electrically connected to the transistor D1, the resistor R19 is electrically connected to the microcontroller U5, and the microcontroller U5 is electrically connected to the interaction module 400.
[0049] In the detailed description of the present specification, the signal from the signal processing module 200 enters the designated I / O port of the microcontroller U5 through the resistor R19. The microcontroller U5 is the "brain" of the system, which is a chip integrating CPU, memory, ADC, DAC and various communication interfaces. It is responsible for collecting the state data of all channels, executing the preset health state evaluation algorithm, and finally issuing control instructions to the interaction module 400.
[0050] Optionally, the interaction module 400 includes a light-emitting diode D2 and a buzzer U6.
[0051] In the detailed description of the present specification, the light-emitting diode D2 and the buzzer U6 are used as visual and audible alarm devices respectively. They are directly driven by the GPIO port of the microcontroller U5. When the microcontroller U5 judges that the electrode state is abnormal according to the algorithm, it will control the corresponding GPIO port to output high / low level, so as to light up the light-emitting diode D2 and sound the buzzer U6. For example, it can be set that the green light is always on as "good", the yellow light flashes as "attention", and the red light is always on and the buzzer sounds as "need to replace", so as to provide clear and intuitive state feedback.
[0052] In the utility model, through the detection unit integrated with internal resistance, potential and temperature three key parameters, the health condition of the composite electrode can be comprehensively reflected from multiple dimensions. The internal resistance change directly reflects the aging of the sensitive film and the liquid connection state, the potential drift directly represents the stability of the reference system, and the temperature compensation makes the state evaluation result more scientific, accurate and reliable. Through sound and light alarm and other ways, the user can quickly obtain the electrode state conclusion without professional knowledge and complex operation, which greatly improves the detection efficiency and is especially suitable for daily maintenance and rapid diagnosis in industrial field.
[0053] The above-described specific embodiments further specifically describe the purposes, technical solutions and advantages of the present application, and it should be understood that the present application is not inherently related to any specific computer, virtual device or electronic device, and various general-purpose devices can also implement the present application. The above-described is only a specific embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
[0054] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment mainly describes the difference from other embodiments.
[0055] The above-described is only an embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A system for detecting a state of a composite electrode, characterized by, The application relates to a composite electrode health state detection device, which comprises the following parts: a detection module (100) for connecting with a composite electrode to be detected, collecting the internal resistance, potential and temperature of the composite electrode; a signal processing module (200) electrically connected with the detection module (100) for receiving and processing the state parameters and converting the state parameters into identifiable state data; a control and operation module (300) connected with the signal processing module (200) for receiving the state data and calculating the health state index of the composite electrode according to a preset algorithm; an interactive module (400) connected with the control and operation module (300) for displaying the health state index and / or issuing a state alarm.
2. The system for detecting a state of a composite electrode according to claim 1, wherein The detection module (100) comprises an internal resistance detection unit (110), a potential detection unit (120) and a temperature detection unit (130), the internal resistance detection unit (110) is connected with the potential detection unit (120), and the potential detection unit (120) is connected with the temperature detection unit (130). The internal resistance detection unit (110) comprises a relay U1, the relay U1 is electrically connected with a resistor R1 and an amplifier U2, the resistor R1 is electrically connected with a capacitor C1 and an inductor L1, the amplifier U2 is electrically connected with a resistor R2, the resistor R2 is electrically connected with a capacitor C2, and the capacitor C2 is electrically connected with the potential detection unit.
3. The system for detecting a state of a composite electrode according to claim 2, wherein The potential detection unit (120) comprises a resistor R3 and a resistor R4 electrically connected with the capacitor C2, the resistor R3 is electrically connected with the resistor R4, a resistor R5, a capacitor C3 and a capacitor C4, the resistor R5 is electrically connected with an amplifier U3, the amplifier U3 is electrically connected with a capacitor C5, a resistor R7 and a resistor R8, the capacitor C5 is electrically connected with a resistor R6 and a capacitor C6, the resistor R7 is electrically connected with a capacitor C7 and the amplifier U4, and the amplifier U4 is electrically connected with the temperature detection unit (130).
4. The system for detecting a state of a composite electrode according to claim 3, wherein The temperature detection unit (130) comprises a resistor R14 and a resistor R10 electrically connected with the amplifier U4, the resistor R14 is electrically connected with a resistor R12 and a resistor R13, the resistor R10 is electrically connected with the resistor R12, a resistor R11 and a resistor R9, the resistor R13 is electrically connected with the resistor R11 and a resistor R15, the resistor R15 is electrically connected with a thermistor R16, the resistor R9 is electrically connected with the thermistor R16, and the thermistor R16 is electrically connected with the signal processing module (200).
5. The system for detecting a state of a composite electrode according to claim 4, wherein The signal processing module (200) comprises a resistor R17 electrically connected with the thermistor R16, the resistor R17 is electrically connected with a capacitor C8 and a triode D1, and the triode D1 is electrically connected with a resistor R18 and the control and operation module (300).
6. The system for detecting a state of a composite electrode according to claim 5, wherein The control and operation module (300) comprises a resistor R19 electrically connected with the triode D1, the resistor R19 is electrically connected with a microcontroller U5, and the microcontroller U5 is electrically connected with the interactive module (400).
7. The system for detecting a state of a composite electrode according to claim 6, wherein The interaction module (400) comprises a light emitting diode D2 and a buzzer U6.