Visual piezoelectric sensor data acquisition system

Abstract

The utility model discloses a visual piezoelectric sensor data acquisition system, and aims to solve the problems of lack of isolation measures, mutual interference among parts and fluctuation of test results in the existing device. In the system, a control circuit module is fixedly arranged in an isolation box, a piezoelectric sensor is arranged on a screw rod sliding table module, and the piezoelectric sensor is connected with a piezoelectric energy acquisition module; a power source of the control circuit module is electrically connected with the controller, the controller is electrically connected with the driver, the driver is electrically connected with the lead screw sliding table module, and the displayer is electrically connected with the piezoelectric sensor. The isolation box is provided with a wiring terminal, the wiring terminal is electrically connected with the driver, and the lead screw sliding table module is detachably connected with the isolation box through the wiring terminal. The isolation box is arranged, and the control circuit module is arranged in the isolation box to serve as a physical barrier, so that the influence of external electromagnetic interference, mechanical interference and the like on internal parts of the system is reduced, and a stable environment is provided for testing.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a visual piezoelectric sensor data acquisition system. Background Technology

[0002] The piezoelectric effect refers to the polarization of a piezoelectric material under external mechanical force, resulting in the formation of bound charges of opposite polarities on the surfaces of its two ends. As an important physical phenomenon, the piezoelectric effect has wide applications in numerous fields such as sensors and energy harvesting. Accurate measurement of the piezoelectric effect is crucial for in-depth research on related materials and expanding their application scope. However, current devices used for testing the piezoelectric effect generally face a series of unresolved problems in practical applications.

[0003] Most devices lack effective isolation measures, making components prone to mutual interference and increasing the likelihood of malfunctions, thus hindering stable and continuous piezoelectric effect testing. Furthermore, weak anti-interference capabilities can lead to fluctuations in test results, affecting the accuracy of data acquisition and consequently the continuity and reliability of the entire testing process, further compromising stable and continuous piezoelectric effect testing. Some devices struggle to accurately provide specific stress conditions for the piezoelectric sensor according to testing requirements, limiting comprehensive testing and in-depth research of the piezoelectric effect under different stress states. Simultaneously, the real-time display of the repetitive forces applied to the piezoelectric sensor and subsequent data processing functions are inadequate, failing to acquire force value information promptly and accurately for effective data analysis, which is detrimental to the accurate evaluation of piezoelectric sensor performance. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] The purpose of this invention is to provide a visual piezoelectric sensor data acquisition system, which aims to solve the problems of lack of isolation measures, mutual interference between components, and fluctuations in test results in existing devices.

[0006] (II) Technical Solution

[0007] To address the aforementioned issues, this utility model provides a visual piezoelectric sensor data acquisition system, comprising an isolation box, a control circuit module, a lead screw slide module, a piezoelectric sensor, and a piezoelectric energy acquisition module. The control circuit module is fixedly installed inside the isolation box, the piezoelectric sensor is mounted on the lead screw slide module, and the piezoelectric sensor is connected to the piezoelectric energy acquisition module.

[0008] The control circuit module includes a power supply, a controller, a driver, and a display. The power supply is electrically connected to the controller, the controller is electrically connected to the driver, the driver is electrically connected to the lead screw slide module, and the display is electrically connected to the piezoelectric sensor.

[0009] The isolation box is equipped with wiring terminals, which are electrically connected to the driver. The lead screw slide module is detachably connected to the isolation box through the wiring terminals.

[0010] Preferably, the control circuit module further includes a control button, which is electrically connected to the controller and fixedly connected to the isolation box.

[0011] Preferably, the controller is equipped with a Bluetooth communication unit, which is used to control the start and stop of the lead screw slide module.

[0012] Preferably, the piezoelectric energy harvesting module includes a piezoelectric conversion unit, a signal amplification unit, and an output unit;

[0013] The input terminal of the piezoelectric conversion unit is connected to the output terminal of the piezoelectric sensor, the output terminal of the piezoelectric conversion unit is connected to the input terminal of the signal amplification unit, and the output terminal of the signal amplification unit is connected to the output unit.

[0014] Preferably, the ball screw slide module includes a support frame, a ball screw, a sliding assembly, and a motor;

[0015] The two ends of the ball screw are rotatably connected to the support frame. The sliding component is sleeved on the ball screw and rotatably connected to the ball screw. The motor is fixedly connected to the support frame. The driver is electrically connected to the motor. The output end of the motor is connected to the first end of the ball screw. The piezoelectric sensor is fixedly connected to the support frame. The piezoelectric sensor is located at the second end of the ball screw.

[0016] The motor drives the ball screw to rotate, and the ball screw causes the sliding assembly to slide closer to or further away from the piezoelectric sensor along the axis of the ball screw.

[0017] Preferably, the ball screw slide module further includes a coupling, and one end of the ball screw is connected to the output shaft of the motor through the coupling.

[0018] Preferably, the sliding assembly includes a slide rail, a slide block, and a slider. The slide rail is fixed inside the support frame, the slide block is slidably connected to the slide rail, the slide block is fixedly connected to the slider, and the slider is rotatably connected to the ball screw.

[0019] Preferably, the lead screw slide module further includes a stress stage, which is connected to the piezoelectric sensor and is disposed between the piezoelectric sensor and the slider.

[0020] Preferably, the lead screw slide module further includes a rubber block, which is fixedly connected to the slider and disposed between the slider and the stress table.

[0021] Preferably, a data transmission interface is provided on one side of the isolation box, and the data transmission interface is connected to the display.

[0022] By setting up an isolation box, the control circuit module is placed inside, acting as a physical barrier to reduce the impact of external electromagnetic and mechanical interference on the internal components of the system, providing a stable environment for testing. The power supply of the control circuit module provides power to the controller; the controller sends control signals to the driver according to a preset program or input commands; after receiving the signals, the driver drives the lead screw slide module; the display is electrically connected to the piezoelectric sensor, receiving and displaying the data generated by the piezoelectric sensor in real time. The lead screw slide module carries the piezoelectric sensor and applies or adjusts the stress on the piezoelectric sensor through mechanical movement, enabling the piezoelectric sensor to sense external stress and other physical quantities and convert them into electrical signals. The piezoelectric energy acquisition module is connected to the piezoelectric sensor to collect and process the energy signals generated by the piezoelectric sensor. Terminal blocks connect the lead screw slide module to the control circuit inside the isolation box, ensuring power and signal transmission, and the detachable connection facilitates installation and maintenance.

[0023] (III) Beneficial Effects

[0024] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0025] 1. The isolation box effectively isolates external interference, allowing each component to work in a stable environment, reducing malfunctions caused by mutual interference, and ensuring stable and continuous testing.

[0026] 2. The control circuit module coordinates the work of each part in an orderly manner, which improves the accuracy of data acquisition, ensures the continuity and reliability of the testing process, and provides a stable and reliable environment for piezoelectric effect testing.

[0027] 3. A display device is installed on the isolation box, and the piezoelectric sensor is connected to the piezoelectric energy acquisition module to realize real-time feedback of the detection results during the piezoelectric sensor test. The display device can promptly display parameters such as the voltage or stress value fed back by the piezoelectric sensor, and can also accurately determine whether the piezoelectric sensor is under stress in real time through the piezoelectric energy acquisition module to ensure the validity of the test results. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a visual piezoelectric sensor data acquisition system provided by this utility model;

[0029] Figure 2 This is a diagram showing the layout of the control circuit module of a visual piezoelectric sensor data acquisition system provided by this utility model inside an isolation box.

[0030] Figure 3 This is a front view of the isolation box of a visual piezoelectric sensor data acquisition system provided by this utility model;

[0031] Figure 4 This is a schematic diagram of the back of the isolation box of a visual piezoelectric sensor data acquisition system according to the present invention;

[0032] Figure 5 This is a schematic diagram of the piezoelectric energy acquisition module structure of a visual piezoelectric sensor data acquisition system provided by this utility model;

[0033] Figure 6 This is a schematic diagram of the lead screw slide module structure of a visual piezoelectric sensor data acquisition system provided by this utility model;

[0034] Figure 7 This is a schematic diagram of the output voltage-time curve of the piezoelectric sensor under different stress values ​​in the system provided by this utility model;

[0035] Figure 8 This is a schematic diagram of the real-time output voltage-stress value curve of the piezoelectric sensor in the system provided by this utility model.

[0036] Figure label:

[0037] 1. Isolation box; 11. Terminal block; 12. Data transmission interface;

[0038] 2. Control circuit module; 21. Power supply; 22. Controller; 23. Driver; 24. Display; 25. Control buttons;

[0039] 3. Screw slide module; 31. Support frame; 32. Ball screw; 33. Sliding assembly; 331. Slide rail; 332. Slide block; 333. Slider;

[0040] 34. Motor; 35. Coupling; 36. Stress table; 37. Rubber block;

[0041] 4. Piezoelectric sensor;

[0042] 5. Piezoelectric energy acquisition module; 51. Piezoelectric conversion unit; 52. Signal amplification unit; 53. Output unit. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0044] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0045] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0046] Combination Figure 1 and Figure 2This invention provides a visual piezoelectric sensor data acquisition system, including an isolation box 1, a control circuit module 2, a lead screw slide module 3, a piezoelectric sensor 4, and a piezoelectric energy acquisition module 5. The control circuit module 2 is fixedly installed inside the isolation box 1, the piezoelectric sensor 4 is installed on the lead screw slide module 3, and the piezoelectric sensor 4 is connected to the piezoelectric energy acquisition module 5. The control circuit module 2 includes a power supply 21, a controller 22, a driver 23, and a display 24. The power supply 21 is electrically connected to the controller 22, the controller 22 is electrically connected to the driver 23, the driver 23 is electrically connected to the lead screw slide module 3, and the display 24 is electrically connected to the piezoelectric sensor 4. The isolation box 1 is provided with a wiring terminal 11, which is electrically connected to the driver 23. The lead screw slide module 3 is detachably connected to the isolation box 1 through the wiring terminal 11. Specifically, by setting up the isolation box 1 and placing the control circuit module 2 inside the isolation box 1, it acts as a physical barrier to reduce the influence of external electromagnetic and mechanical interference on the internal components of the system, providing a stable environment for testing. The power supply 21 of the control circuit module 2 provides power to the controller 22; the controller 22 sends control signals to the driver 23 according to a preset program or input instructions; after receiving the signals, the driver 23 drives the lead screw slide module 3; the display 24 is electrically connected to the piezoelectric sensor 4, receiving and displaying the data generated by the piezoelectric sensor 4 in real time. The lead screw slide module 3 carries the piezoelectric sensor 4 and applies or adjusts the stress on the piezoelectric sensor 4 through mechanical movement, thereby enabling the piezoelectric sensor 4 to sense physical quantities such as external stress and convert them into electrical signals. The piezoelectric energy acquisition module 5 is connected to the piezoelectric sensor 4 and is used to acquire and process the energy signals generated by the piezoelectric sensor 4. The wiring terminal 11 realizes the electrical connection between the lead screw slide module 3 and the control circuit in the isolation box 1, ensuring power and signal transmission, and the detachable connection facilitates installation and maintenance.

[0047] It should be noted that, Figure 2 The diagram only shows the distribution of the control circuit module 2 within the isolation box 1. The electrical connections within the control circuit module 2 are not shown. As long as the circuit can be connected or the signal can be transmitted, it is not restricted to the specific location of each component of the control circuit module 2 within the isolation box 1. It is sufficient to control the lead screw slide module 3 and complete the testing and data acquisition of the piezoelectric sensor 4.

[0048] With this setup, the isolation box 1 acts as a physical barrier, effectively blocking external electromagnetic interference and mechanical vibration interference, creating a stable testing environment for the system, and preventing malfunctions or signal disturbances caused by external interference, thus greatly reducing the probability of failure. In the control circuit module 2, the power supply 21, controller 22, driver 23, and display 24 work together in an orderly manner to ensure precise control and data acquisition of the lead screw slide module 3 and piezoelectric sensor 4. This design makes the testing process less susceptible to external interference, ensuring the stability and continuity of the test, thereby improving the accuracy of data acquisition, providing reliable data support for piezoelectric effect research, ensuring the continuity and reliability of the entire testing process, and meeting the needs of scientific research and practical applications for a stable testing environment. In addition, a display 24 is installed on the isolation box 1, and the piezoelectric sensor 4 is connected to the piezoelectric energy acquisition module 5 to realize real-time feedback of the detection results during the testing process of the piezoelectric sensor 4. The display 24 can display parameters such as the voltage or stress value fed back by the piezoelectric sensor 4 in a timely manner, and can also accurately determine whether the piezoelectric sensor 4 is under stress in real time through the piezoelectric energy acquisition module 5, so as to ensure the validity of the test results and realize the accurate evaluation of the performance of the piezoelectric sensor 4.

[0049] The specific operation method of the controller 22 is not limited here. It can be that a physical button is set on the isolation box 1 or a communication unit is set in the controller 22, or a combination of the two control methods can be used to achieve timely control of the controller 22.

[0050] In optional cases, combine Figures 1 to 4 The controller 22 is operated via indoor buttons. Control buttons 25 are electrically connected to the controller 22 and fixedly connected to the isolation box 1. Specifically, control buttons 25 are electrically connected to the controller 22 and fixed to the surface of the isolation box 1. Operators input local control commands (such as start, stop, mode switching, etc.) to the controller 22 by pressing control buttons 25. The controller 22 receives the commands, processes them accordingly, and transmits them to other components. This setup allows operators to input commands to the controller 22 simply by pressing a button, such as starting or stopping the test, or switching operating modes. This design eliminates the need for complex remote equipment or programs, making it particularly suitable for emergency handling or simple test adjustments. It enhances the intuitiveness and convenience of operation, enabling operators to quickly respond and control the test process on-site, improving the system's operational performance in local scenarios. Especially in emergency situations, control buttons 25 can promptly start and stop the system, improving the system's operational safety.

[0051] In another optional configuration, the controller 22 incorporates a Bluetooth communication unit for controlling the start and stop of the lead screw slide module 3. Specifically, the controller 22 integrates a Bluetooth communication unit that can pair and connect with external Bluetooth devices (such as mobile phones, tablets, and computers). When an external device sends a control command (such as starting or stopping the lead screw slide module 3, or adjusting the running direction of the lead screw slide module 3), the Bluetooth communication unit receives the command and transmits it to the controller 22, which then controls the start and stop of the lead screw slide module 3 accordingly. This configuration endows the system with remote control capabilities through the Bluetooth communication unit within the controller 22. Users can control the start and stop of the lead screw slide module 3 from a distance (even in isolated hazardous environments) using Bluetooth devices such as mobile phones, tablets, or computers. For example, in test environments with hazardous factors such as high temperature, high pressure, or chemical contamination, operators can adjust the test status without approaching the site; or in situations requiring multi-device collaborative testing where frequent personnel movement is inconvenient, remote control can significantly improve operational flexibility and convenience, making the testing process more intelligent and enabling the system to adapt to different usage scenarios and operating methods.

[0052] Combination Figures 1 to 5 In a preferred embodiment, the piezoelectric energy harvesting module 5 includes a piezoelectric conversion unit 51, a signal amplification unit 52, and an output unit 53. The input terminal of the piezoelectric conversion unit 51 is connected to the output terminal of the piezoelectric sensor 4, the output terminal of the piezoelectric conversion unit 51 is connected to the input terminal of the signal amplification unit 52, and the output terminal of the signal amplification unit 52 is connected to the output unit 53. Specifically, the input terminal of the piezoelectric conversion unit 51 is connected to the output terminal of the piezoelectric sensor 4 to perform preliminary conversion of the weak electrical signal generated by the piezoelectric sensor 4; the signal amplification unit 52 receives the signal output by the piezoelectric conversion unit 51, amplifies it, and increases the signal strength; the output unit 53 is connected to the signal amplification unit 52 to release the signal.

[0053] It should be noted that the piezoelectric energy acquisition module 5 can initially collect piezoelectric energy during the test. It can be used as a functional verification platform, i.e., to monitor the status of the piezoelectric sensor 4 in real time; it can also be used as the front-end module of the embedded monitoring system, which is electrically connected to the control circuit module 2 in the isolation box 1 to realize data processing and analysis.

[0054] In an optional configuration, the output unit 53 can be a light output unit 53, powered separately by an external 9V power supply 21 to the signal amplification unit 52. The output of the amplification unit drives the light output unit 53 through a current-limiting resistor. When the piezoelectric sensor 4 is under pressure, the piezoelectric conversion unit 51 collects the current pressure information and amplifies the signal strength through the signal amplification unit 52. At this time, the light output unit 53 lights up, indicating that the piezoelectric sensor 4 is under pressure. Simultaneously, a data processing unit can be set in the control circuit module 2. The output unit 53 is electrically connected to the data processing unit to process and output the amplified signal. This signal can be displayed on the display 24 or stored.

[0055] With this configuration, the piezoelectric energy acquisition module 5, through the coordinated operation of the piezoelectric conversion unit 51, the signal amplification unit 52, and the output unit 53, efficiently processes the weak electrical signal generated by the piezoelectric sensor 4. The piezoelectric conversion unit 51 initially shapes the original signal, the signal amplification unit 52 enhances the signal strength to resist losses and interference during transmission, and the output unit 53 outputs the processed signal in a usable form. This solves the problems of piezoelectric signals being susceptible to interference and having weak strength, improves energy utilization efficiency, ensures accurate and stable signal transmission and application, and enhances the system's ability to process piezoelectric signals.

[0056] In a preferred embodiment, a data transmission interface 12 is provided on one side of the isolation box 1, and the data transmission interface 12 is connected to the display 24. It should be noted that when a data processing unit is provided in the control circuit module 2, the data transmission interface 12 can also be electrically connected to the data processing unit. In this case, the data from the piezoelectric sensor 4, after being analyzed and processed by the data processing unit, is displayed in real time on the display 24, and can be connected to a computer or other devices through the data transmission interface 12 for in-depth analysis and storage of the collected data. With this configuration, the data transmission interface 12 provides a convenient channel for exporting test data. Test data (such as the electrical signal strength and frequency of change output by the piezoelectric sensor 4) stored on the display 24 or in the data processing unit can be quickly and accurately transmitted to external devices (such as computers or hard drives) through the data transmission interface 12, improving the efficiency and accuracy of data acquisition.

[0057] Combination Figures 1 to 6In a preferred embodiment, the ball screw slide module 3 includes a support frame 31, a ball screw 32, a sliding assembly 33, and a motor 34. Both ends of the ball screw 32 are rotatably connected to the support frame 31. The sliding assembly 33 is sleeved on the ball screw 32 and rotatably connected to it. The motor 34 is fixedly connected to the support frame 31. The driver 23 is electrically connected to the motor 34. The output end of the motor 34 is connected to the first end of the ball screw 32. The piezoelectric sensor 4 is fixedly connected to the support frame 31 and is located at the second end of the ball screw 32. The motor 34 drives the ball screw 32 to rotate, and the ball screw 32 causes the sliding assembly 33 to slide along the axial direction of the ball screw 32 towards or away from the piezoelectric sensor 4. Specifically, the support frame 31 serves as the structural foundation of the ball screw slide module 3, fixing components such as the ball screw 32 and motor 34. The two ends of the ball screw 32 are rotatably connected to the support frame 31 and rotate under the drive of the motor 34. The sliding assembly 33 is sleeved on the ball screw 32 and rotatably connected to it. When the ball screw 32 rotates, the sliding assembly 33 slides along its axial direction. The motor 34 is fixed to the support frame 31 and starts under the control of the driver 23, outputting power to drive the ball screw 32 to rotate. The piezoelectric sensor 4 is fixed to the support frame 31, located at one end of the ball screw 32, waiting for the sliding assembly 33 to approach or move away to apply stress.

[0058] With this setup, the lead screw slide module 3 precisely drives the ball screw 32 to rotate via the motor 34, thereby controlling the movement of the sliding assembly 33. This achieves high-precision position control and stress application, providing stable and adjustable stress conditions for the piezoelectric sensor 4 according to testing requirements, including static pressure, dynamic pressure, and periodically changing stress. This allows for a deeper exploration of the characteristics and laws of the piezoelectric effect by understanding the response of the piezoelectric sensor 4 under different stress states, thus improving the accuracy of test results.

[0059] In a preferred embodiment, the lead screw slide module 3 is equipped with a coupling 35, through which one end of the ball screw 32 is connected to the output shaft of the motor 34. This arrangement ensures the stability of power transmission. Between the motor 34 and the ball screw 32, the coupling 35 can compensate for certain installation errors, reducing power loss and vibration caused by incomplete shaft alignment. It makes power transmission more efficient and stable, preventing poor power transmission from affecting the motion accuracy of the lead screw slide module 3, thereby improving the reliability of the entire device and ensuring the stability and accuracy of stress application during testing.

[0060] It should be noted that the specific structure and installation method of the sliding assembly 33 are not limited here, as long as it can move along the axis of the ball screw 32 during rotation. In a preferred embodiment, the sliding assembly 33 includes a slide rail 331, a slide block 332, and a slider 333. The slide rail 331 is fixed inside the support frame 31, the slide block 332 is slidably connected to the slide rail 331, the slide block 332 is fixedly connected to the slider 333, and the slider 333 is rotatably connected to the ball screw 32. Specifically, the slide rail 331 is fixed inside the support frame 31, providing a guide track for the slide block 332; the slide block 332 is slidably connected to the slide rail 331, allowing it to move smoothly along the direction of the slide rail 331, while being fixedly connected to the slider 333; the slider 333 is rotatably connected to the ball screw 32, and when the ball screw 32 rotates, the slider 333 moves axially under the action of the screw, causing the slide block 332 and connected components to move synchronously.

[0061] With this configuration, the slide rail 331, slide block 332, and slider 333 in the sliding assembly 33 cooperate to provide precise guidance and stable support for the sliding process. The slide rail 331 is fixed inside the support frame 31, restricting the movement trajectory of the slide block 332, ensuring that it can only slide smoothly in a predetermined direction, avoiding wobbling and deviation. The fixed connection between the slide block 332 and the slider 333 ensures the consistency of power transmission, enabling the slider 333 to accurately drive the slide block 332 under the drive of the ball screw 32. This design ensures the accuracy of the sliding assembly 33 when stress is applied, avoiding uneven stress or test errors caused by unstable sliding, providing a more reliable stress input for the piezoelectric sensor 4, and thus improving the accuracy of the test results.

[0062] In a preferred embodiment, the lead screw slide module 3 further includes a stress table 36, which is connected to the piezoelectric sensor 4 and positioned between the piezoelectric sensor 4 and the slider 333. When the slider 333 moves, the force is transmitted to the piezoelectric sensor 4 through the stress table 36. As an intermediate carrier, the stress table 36 evenly distributes and transmits the stress applied by the slider 333, ensuring that the piezoelectric sensor 4 experiences a clear force.

[0063] With this setup, the stress stage 36 acts as an intermediate carrier between the slider 333 and the piezoelectric sensor 4, concentrating and uniformly transmitting stress. When the slider 333 moves, the stress stage 36 accurately transmits the force exerted by the slider 333 to the piezoelectric sensor 4. Its structure and material can be selected according to testing requirements (e.g., stress stages 36 with different hardness and shapes can simulate different types of stress distributions). By accurately applying and controlling stress, the stress stage 36 improves the accuracy and operability of the test.

[0064] In a preferred embodiment, the lead screw slide module 3 further includes a rubber block 37, which is fixedly connected to the slider 333 and positioned between the slider 333 and the stress table 36. The rubber block 37, fixed between the slider 333 and the stress table 36, ensures that when the slider 333 moves and impacts or compresses the stress table 36, the rubber block 37 first contacts and undergoes elastic deformation, buffering the impact force generated by the movement of the slider 333. Through the elastic buffering of the rubber block 37, stress transmission becomes more uniform and gentle, avoiding rigid impacts. Furthermore, the rubber block 37 is positioned along the axis of the stress table 36, meaning that when the rubber block 37 contacts the stress table 36, it is located at the center of the contact surface. This ensures that the stress is applied along the center of the stress table 36 to the piezoelectric sensor 4, guaranteeing the effective application of stress.

[0065] With this design, the rubber block 37 possesses excellent elasticity and cushioning properties. When the slider 333 moves and comes into contact with the stress table 36, the rubber block 37 first undergoes elastic deformation, absorbing and cushioning the impact force of the slider 333. This cushioning effect avoids rigid collisions between the slider 333 and the stress table 36, reducing wear and damage to mechanical parts and extending the service life of the device. Simultaneously, the elastic deformation of the rubber block 37 makes stress transmission more uniform and gentle, preventing damage to the piezoelectric sensor 4 or abnormal test data due to excessive impact force or localized stress concentration. It also ensures that the stress application direction is transmitted to the piezoelectric sensor 4 along the center of the stress table 36, ensuring the effective application of stress and thus improving the accuracy and reliability of the test results.

[0066] Figure 7 and Figure 8 This is a schematic diagram of the output voltage-time curve and real-time output voltage-stress curve of the piezoelectric sensor 4 under different stress values ​​using the system in this utility model. Figure 7 Under different external forces, the voltage exhibits dynamic fluctuation characteristics, indicating that the system can capture the voltage changes of the piezoelectric sensor 4 in real time when subjected to force, demonstrating the system's high sensitivity in acquiring piezoelectric effect signals. As the external force increases, the voltage fluctuation characteristics show a regular changing trend, indicating that the lead screw slide module 3 in the system can accurately provide different levels of stress conditions for the piezoelectric sensor 4, meeting the testing requirements for the piezoelectric effect under different stress states. The curves are continuous and show no significant abrupt changes or interruptions caused by interference, indicating that the isolation box 1 and other structures effectively reduce external interference, ensuring the stability and continuity of the testing process, making data acquisition continuous and reliable, and meeting the expected results of anti-interference and stable testing in the system design. Figure 8In the data, the data points are roughly distributed along a straight line, indicating an approximately linear relationship between voltage and external force. This aligns with the theoretical characteristics of force and electrical signal output in the piezoelectric effect. This demonstrates that the system can accurately acquire and process the output signal of the piezoelectric sensor 4. The signal amplification unit 52 and the piezoelectric conversion unit 51 work together to effectively improve signal quality, resulting in a clear voltage-force relationship and high data accuracy. The stable linear relationship further verifies the system's reliability during testing, namely the accuracy of stress application by the lead screw slide module 3, the effectiveness of interference suppression by the isolation box 1, and the stability of signal processing by the control circuit module 2. This ensures reliable acquisition of voltage data corresponding to each external force, providing high-quality data support for in-depth research on the piezoelectric effect and demonstrating the system's effectiveness in evaluating the performance of the piezoelectric sensor 4.

[0067] It can be seen that the system of this invention has excellent effects in terms of precise stress application, anti-interference stability testing, and accurate data acquisition and processing, which meets the needs of in-depth research on the piezoelectric effect.

[0068] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A visual piezoelectric sensor data acquisition system, characterized in that, The system includes an isolation box (1), a control circuit module (2), a lead screw slide module (3), a piezoelectric sensor (4), and a piezoelectric energy acquisition module (5). The control circuit module (2) is fixedly installed inside the isolation box (1). The piezoelectric sensor (4) is installed on the lead screw slide module (3). The piezoelectric sensor (4) is connected to the piezoelectric energy acquisition module (5). The control circuit module (2) includes a power supply (21), a controller (22), a driver (23), and a display (24). The power supply (21) is electrically connected to the controller (22), the controller (22) is electrically connected to the driver (23), the driver (23) is electrically connected to the lead screw slide module (3), and the display (24) is electrically connected to the piezoelectric sensor (4). The isolation box (1) is provided with a wiring terminal (11), which is electrically connected to the driver (23). The lead screw slide module (3) is detachably connected to the isolation box (1) through the wiring terminal (11).

2. The system according to claim 1, characterized in that, The control circuit module (2) also includes a control button (25), which is electrically connected to the controller (22) and fixedly connected to the isolation box (1).

3. The system according to claim 1, characterized in that, The controller (22) is equipped with a Bluetooth communication unit, which is used to control the start and stop of the lead screw slide module (3).

4. The system according to claim 1, characterized in that, The piezoelectric energy acquisition module (5) includes a piezoelectric conversion unit (51), a signal amplification unit (52), and an output unit (53); The input end of the piezoelectric conversion unit (51) is connected to the output end of the piezoelectric sensor (4), the output end of the piezoelectric conversion unit (51) is connected to the input end of the signal amplification unit (52), and the output end of the signal amplification unit (52) is connected to the output unit (53).

5. The system according to claim 1, characterized in that, The ball screw slide module (3) includes a support frame (31), a ball screw (32), a sliding assembly (33), and a motor (34); The two ends of the ball screw (32) are rotatably connected to the support frame (31), the sliding component (33) is sleeved on the ball screw (32) and rotatably connected to the ball screw (32), the motor (34) is fixedly connected to the support frame (31), the driver (23) is electrically connected to the motor (34), the output end of the motor (34) is connected to the first end of the ball screw (32), the piezoelectric sensor (4) is fixedly connected to the support frame (31), and the piezoelectric sensor (4) is located at the second end of the ball screw (32); The motor (34) drives the ball screw (32) to rotate, and the ball screw (32) causes the sliding assembly (33) to slide along the axis of the ball screw (32) towards or away from the piezoelectric sensor (4).

6. The system according to claim 5, characterized in that, The ball screw slide module (3) also includes a coupling (35), one end of the ball screw (32) is connected to the output shaft of the motor (34) through the coupling (35).

7. The system according to claim 5, characterized in that, The sliding assembly (33) includes a slide rail (331), a slide block (332), and a slider (333). The slide rail (331) is fixed inside the support frame (31). The slide block (332) is slidably connected to the slide rail (331). The slide block (332) is fixedly connected to the slider (333). The slider (333) is rotatably connected to the ball screw (32).

8. The system according to claim 7, characterized in that, The lead screw slide module (3) also includes a stress table (36), which is connected to the piezoelectric sensor (4) and is disposed between the piezoelectric sensor (4) and the slider (333).

9. The system according to claim 8, characterized in that, The lead screw slide module (3) also includes a rubber block (37), which is fixedly connected to the slider (333) and is disposed between the slider (333) and the stress table (36).

10. The system according to claim 1, characterized in that, The isolation box (1) has a data transmission interface (12) on one side, which is connected to the display (24).

Images