Miniature specimen impact performance test system, control method, device, and storage medium

Abstract

This application relates to a micro-sample impact performance testing system, control method, equipment, and storage medium, comprising: a pre-impact parameter measurement component, a post-impact parameter measurement component, and a data processing component; the pre-impact parameter measurement component is used to acquire the angular position signal of the rotating motion device from the initial position to the impact position; the post-impact parameter measurement component is used to acquire the linear displacement signal of the displacement device from the impact position to the target position; the data processing component is used to analyze the pre-impact energy based on the angular position signal and the post-impact energy based on the linear displacement signal; and the impact performance test result of the micro-sample under test is obtained by analyzing the pre-impact energy and the post-impact energy. This application quantifies the energy of the micro-sample before and after the impact test through the pre-impact parameter measurement component and the post-impact parameter measurement component, and through real-time monitoring combined with online analysis, enables high-precision and high-sensitivity testing of micro-samples.

Description

Technical Field

[0001] This application relates to the field of performance testing technology, and in particular to a micro-sample impact performance testing system, control method, equipment and storage medium. Background Technology

[0002] With the widespread application of microstructures in power electronics, military, aerospace, and biomedicine, the reliability of these microstructures under extreme service environments, especially their performance under shock recombination, has become a research hotspot and challenge. However, traditional shock testing systems are mostly designed for macroscopic specimens, which is insufficient to meet the needs of micro-sized and complex structures.

[0003] Traditional impact loading testing techniques for micro-samples cannot achieve real-time, online detection and data analysis of the impact process of micro-samples, resulting in low accuracy of test results and making it difficult to provide strong support for the reliability assessment of micro-samples. Summary of the Invention

[0004] Therefore, it is necessary to provide a micro-sample impact performance testing system, control method, equipment, and storage medium that can accurately monitor, collect, and analyze data during the impact process of micro-samples, and provide an efficient and accurate testing environment for the mechanical performance evaluation of micro-samples.

[0005] In a first aspect, this application provides a micro-sample impact performance testing system, comprising:

[0006] The system includes a pre-impact parameter measurement component, a post-impact parameter measurement component, and a data processing component; the data processing component is connected to both the pre-impact parameter measurement component and the post-impact parameter measurement component.

[0007] The pre-impact parameter measurement component includes a rotary motion device and a rotary potentiometer. The rotary potentiometer is disposed at the movable connection end of the rotary motion device and is used to acquire the angular position signal of the rotary motion device from the initial position to the impact position, and transmit the angular position signal to the data processing component.

[0008] The post-impact parameter measurement component includes a displacement device, a track platform, a linear potentiometer, and an energy absorption device. Both the displacement device and the energy absorption device are mounted on the track platform, with the displacement device connected to the energy absorption device. A sample clamp is mounted on the displacement device to fix the micro-sample to be tested. The linear potentiometer is mounted on the displacement device and is used to acquire the linear displacement signal of the displacement device from the impact position to the target position, and transmit the linear displacement signal to the data processing component. The target position is the maximum distance the displacement device moves on the track platform after the rotary motion device collides with the micro-sample to be tested.

[0009] The data processing component is used to analyze the angular position signal to obtain the energy before impact, and to analyze the linear displacement signal to obtain the energy after impact; and to analyze the energy before impact and the energy after impact to obtain the impact performance test results of the micro-sample to be tested.

[0010] In one embodiment, the coefficient of friction of the track platform is less than a preset threshold, one side of the energy-absorbing device is connected to the displacement device, and the other side is located at the end of the track platform away from the rotary motion device;

[0011] The energy-absorbing device is a helical spring, which is used to absorb the kinetic energy of the displacement device after contacting it.

[0012] The data processing component is used to analyze and obtain the post-impact energy based on the linear displacement signal and the elastic coefficient of the helical spring.

[0013] In one embodiment, the data processing component includes a voltage acquisition unit, an analog-to-digital conversion unit, and a post-processing unit;

[0014] The voltage acquisition unit is connected to the rotary potentiometer and the linear potentiometer respectively, and is used to acquire the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer;

[0015] The analog-to-digital conversion unit is used to convert the analog angular position voltage signal output by the rotary potentiometer into a first digital signal, convert the analog displacement voltage signal output by the linear potentiometer into a second digital signal, and transmit the first digital signal and the second digital signal to the post-processing unit.

[0016] The post-processing unit is used to calculate the pre-impact kinetic energy of the rotating motion device based on the first digital signal, and to calculate the post-impact potential energy of the energy-absorbing device based on the second digital signal; and to analyze the impact performance test results of the micro sample to be tested based on the pre-impact kinetic energy and the post-impact potential energy.

[0017] In one embodiment, the data processing component further includes a power supply unit and a display unit; the power supply unit and the display unit are respectively connected to the rotary potentiometer and the linear potentiometer; the power supply unit adopts a dual-output power supply for supplying power to the rotary potentiometer and the linear potentiometer; the display unit is used to display the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer.

[0018] In one embodiment, the rotating motion device is a pendulum;

[0019] The data processing component is used to analyze and obtain the pre-impact energy based on the angular position signal, pendulum mass, pendulum height, and gravitational acceleration.

[0020] In one embodiment, the displacement device includes an adjustable mounting mechanism for adjusting the height of the sample clamp and the position and angle of the energy absorption device.

[0021] In one embodiment, the pre-impact parameter measurement component further includes a manual trigger and a limiting device, the manual trigger being connected to the limiting device and the limiting device being connected to the rotary motion device, the limiting device being used to fix the initial position of the rotary motion device;

[0022] The manual trigger is used to generate a trigger voltage signal and send the trigger voltage signal to the limiting device so that the limiting device releases the rotating motion device; after receiving the trigger voltage signal sent by the manual trigger, the limiting device releases the fixed constraint on the rotating motion device.

[0023] Secondly, this application also provides a control method for a micro-sample impact performance testing system, comprising:

[0024] The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from its initial position to the impact position;

[0025] The post-impact parameter measurement component acquires the linear displacement signal from the impact position to the target position from the displacement device;

[0026] The energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal.

[0027] The impact performance test results of the micro-sample to be tested are obtained based on the energy before and after the impact.

[0028] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the control method for the micro specimen impact performance testing system described in the first aspect.

[0029] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method for the micro-sample impact performance testing system described in the first aspect.

[0030] In summary, this application proposes a micro-sample impact performance testing system, control method, equipment, and storage medium, including: a pre-impact parameter measurement component, a post-impact parameter measurement component, and a data processing component. The pre-impact parameter measurement component is used to acquire the angular position signal of the rotating motion device from the initial position to the impact position; the post-impact parameter measurement component is used to acquire the linear displacement signal of the displacement device from the impact position to the target position; the data processing component is used to analyze the pre-impact energy based on the angular position signal and the post-impact energy based on the linear displacement signal; and the impact performance test results of the micro-sample under test are obtained by analyzing the pre-impact energy and the post-impact energy. This application quantifies the energy of the micro-sample before and after the impact test through the pre-impact parameter measurement component and the post-impact parameter measurement component. Through real-time monitoring combined with online analysis, high-precision and high-sensitivity testing of micro-samples can be performed. Attached Figure Description

[0031] Figure 1 This is a structural block diagram of a micro-sample impact performance testing system in one embodiment;

[0032] Figure 2 This is a schematic diagram of the structure of a micro-sample impact performance testing system in one embodiment;

[0033] Figure 3 This is a flowchart illustrating the control method of a micro-sample impact performance testing system in one embodiment;

[0034] Figure 4 This is a structural block diagram of the control device of a micro-sample impact performance testing system in one embodiment;

[0035] Figure 5 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0038] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0039] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0040] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0041] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0042] In related technologies, traditional impact testing systems are mostly designed for macroscopic specimens, making it difficult to meet the needs of micro-sized and complex structures. Impact loading testing technology for micro-samples is relatively underdeveloped, primarily due to the lack of high-precision, high-sensitivity testing equipment and methods suitable for micro-samples. Traditional testing methods cannot achieve real-time, online monitoring and data analysis of the impact process of micro-samples, resulting in low accuracy of test results and failing to provide strong support for the reliability assessment of micro-samples.

[0043] This embodiment provides a micro-sample impact performance testing system. By designing pre-impact parameter measurement components and post-impact parameter measurement components, automatic impact performance testing of micro-samples is achieved. Furthermore, a data processing component capable of real-time online monitoring and analysis quantifies and analyzes the voltage data collected by the pre-impact and post-impact parameter measurement components, thereby quickly and accurately obtaining the impact energy absorption of the micro-sample, providing strong support for the reliability assessment of the impact performance of micro-samples.

[0044] In one embodiment, such as Figure 1 As shown, a micro-sample impact performance testing system is provided, comprising: a pre-impact parameter measurement component, a post-impact parameter measurement component, and a data processing component. The data processing component is connected to both the pre-impact parameter measurement component and the post-impact parameter measurement component.

[0045] In this embodiment, as Figure 2 As shown, the pre-impact parameter measurement component includes a rotary motion device and a rotary potentiometer. The rotary potentiometer is located at the movable connection end of the rotary motion device and is used to acquire the angular position signal of the rotary motion device from the initial position to the impact position, and transmit the angular position signal to the data processing component.

[0046] In this embodiment, the rotating motion device refers to a device capable of circular motion and impacting the micro-sample to be tested. For example, the rotating motion device can be a pendulum or a pendulum ball. It should be noted that the rotating motion device can be any device capable of impact testing, depending on the needs of the actual application scenario. The micro-sample to be tested in this embodiment refers to a material test sample with a size much smaller than conventional standard samples. The micro-sample impact performance testing system provided in this embodiment is mainly used to test the impact performance of micro-samples, that is, their energy absorption performance under impact conditions.

[0047] In this embodiment, the rotary potentiometer is located at the movable connection end of the rotating motion device, such as at a hinge or shaft. In this embodiment, the rotary potentiometer is a variable resistor with three terminals, internally containing a rotatable sliding contact that acts as a height-adjustable voltage divider. Under a given power supply voltage, by adjusting the position of the sliding contact, the rotary potentiometer outputs a continuously variable voltage signal, the amplitude of which can increase from zero to the maximum value of the power supply voltage.

[0048] In practical applications, the two terminals of the rotary potentiometer are used to connect to the positive and negative terminals of an external power source, forming a power supply circuit. The third terminal serves as the voltage output terminal, outputting a voltage signal that varies with the position of the sliding contact. This voltage signal can be captured and processed by the data acquisition unit of the data processing component to indirectly reflect the kinetic energy state of the pendulum before impact.

[0049] In this embodiment, the angular position signal is a voltage signal that changes with the position of the sliding contact. It should be noted that the initial position refers to the position of the rotating motion device before it begins to fall. The impact position refers to the position where the rotating motion device collides with the micro-sample to be tested. The type of micro-sample to be tested can be determined according to the needs of the actual application scenario, and the actual positions of the initial position and the impact position can be adaptively adjusted based on the type of micro-sample to be tested.

[0050] In this embodiment, as Figure 2 As shown, the post-impact parameter measurement assembly includes a displacement device, a track platform, a linear potentiometer, and an energy-absorbing device. Both the displacement device and the energy-absorbing device are mounted on the track platform, with the displacement device connected to the energy-absorbing device. The track platform has a friction coefficient less than a preset threshold and is a low-friction track mounted on a linear bearing. This ensures smooth movement along a path consistent with the direction of the descending mass of the rotating motion device, while strictly limiting vertical and lateral offsets to ensure measurement accuracy. The displacement device, after collision between the rotating motion device and the micro-sample under test, allows for linear displacement on the track platform. The energy-absorbing device, connected to the displacement device, absorbs the energy generated by the displacement device's movement.

[0051] The displacement device is equipped with a sample clamp for fixing the miniature sample to be tested. A linear potentiometer is installed on the displacement device to collect the linear displacement signal from the impact position to the target position and transmit the linear displacement signal to the data processing component.

[0052] In this embodiment, the specific structure of the sample holder can be determined according to the specific type of the micro-sample to be tested in the actual application scenario. A linear potentiometer is placed at the bottom of the low-friction track. In a specific embodiment, the working principle of the linear potentiometer is similar to that of a rotary potentiometer, but the difference is that the linear potentiometer can generate a continuously variable voltage output during linear motion, which directly reflects the displacement of the track. The linear potentiometer is a three-terminal resistive device with a built-in sliding contact, used as an adjustable voltage divider, employing a linearly sliding contact. In one embodiment, the displacement device includes an adjustable mounting mechanism for adjusting the height of the sample holder and the position and angle of the energy-absorbing device. It should be noted that the height of the sample holder, the position and angle of the energy-absorbing device can be adaptively adjusted according to the type of micro-sample to be tested. The height of the sample holder is equivalent to the height of the micro-sample to be tested. The position and angle of the energy-absorbing device correspond to the absorption performance of the energy-absorbing device. In practical applications, the displacement potentiometer can be calibrated according to the position and angle of the energy-absorbing device to improve its detection accuracy.

[0053] In this embodiment, the target position is the position where the displacement device moves the maximum distance on the track platform after the rotary motion device collides with the micro sample to be tested.

[0054] The data processing component is used to analyze the angular position signal to obtain the pre-impact energy and the post-impact energy to obtain the post-impact energy. The impact performance test results of the micro-sample under test are obtained based on the analysis of the pre-impact and post-impact energy.

[0055] In this embodiment, to ensure that the voltage signal output by the rotary potentiometer accurately reflects the angular position of the swing arm and that the voltage signal output by the linear potentiometer accurately reflects the displacement of the displacement device, the rotary potentiometer and the linear potentiometer need to be calibrated before the system begins testing the impact performance of the micro-samples. The calibration steps for the rotary potentiometer and the linear potentiometer are described below.

[0056] The calibration process for the rotary potentiometer is as follows: a stable DC power supply (such as a 10-volt DC power supply) is used, and the voltage output value of the rotary potentiometer at different angles is recorded. For example, the voltage output value of the rotary potentiometer is recorded in increments of 20°, ranging from 0° to 240°. An angular position calibration curve is obtained by fitting the above data points. This angular position calibration curve describes the mathematical relationship between the voltage output and the angular position of the rotating motion device. After the calibration curve is accurately established, combined with the known length of the swing arm, the angular position information of the swing arm is converted into linear position information using the principle of triangulation. This conversion process relies on the voltage-angle relationship provided by the calibration curve and the geometric characteristics of the swing arm. Since velocity is the derivative of position with respect to time, the linear velocity of the mass of the rotating motion device is obtained by measuring and calculating the slope of the linear position information in real time. This linear velocity value, combined with the known mass of the rotating motion device, allows the calculation of the kinetic energy of the rotating motion device at any time point during its descent and before the impact of the micro-sample using the kinetic energy formula.

[0057] In one embodiment, the rotating motion device is a pendulum. A data processing component is used to analyze the pre-impact energy based on the angular position signal, pendulum mass, pendulum height, and gravitational acceleration.

[0058] The calibration process for the linear potentiometer is as follows: a DC power supply (e.g., a 10-volt DC power supply) is used, and the voltage output value of the linear potentiometer at different displacements is recorded, for example, in 5-millimeter increments, recording the voltage output value within the range of 0 to 50 mm. These precise data points are then used to fit a displacement calibration curve, which accurately describes the functional relationship between the voltage output and the linear position of the low-friction track. After calibration, the linear position of the low-friction track is determined at any desired time point by applying the displacement calibration curve, and the post-impact energy is calculated.

[0059] In this embodiment, the data processing component is used to analyze the pre-impact energy based on the angular position calibration curve and the angular position signal collected in real time by the rotary potentiometer during the test, and to analyze the post-impact energy based on the displacement calibration curve and the displacement signal collected in real time by the linear potentiometer during the test. Finally, the impact performance of the micro sample to be tested is determined based on the difference between the pre-impact energy and the post-impact energy.

[0060] In summary, this embodiment provides a micro-sample impact performance testing system that offers high-precision and high-sensitivity micro-sample impact performance testing components. It enables real-time, online monitoring and data analysis of the micro-sample impact process, achieving fully automated micro-sample impact performance testing. Furthermore, it can quickly and accurately obtain the impact performance test results of the micro-sample under test, providing strong support for the reliability assessment of micro-sample impact performance.

[0061] In one embodiment, one side of the energy-absorbing device is connected to the displacement device, and the other side is located at the end of the track platform away from the rotating motion device. The energy-absorbing device is a helical spring, which is used to absorb the kinetic energy of the displacement device after contacting it.

[0062] The data processing component is used to analyze the post-impact energy based on the linear displacement signal and the elastic coefficient of the helical spring.

[0063] In this embodiment, the helical spring not only provides necessary cushioning during the impact but also indirectly reflects the impact intensity through its deformation. Before the collision, the helical spring is in a state of equilibrium without prestress. The forward movement of the track compresses the spring, converting kinetic energy into potential energy. After the collision, the linear displacement of the displacement device on the low-friction track is equivalent to the compression length of the spring. In practical applications, combining the spring's elastic coefficient and the linear position information of the track, Hooke's law is used to calculate the potential energy stored in the spring, i.e., the post-impact energy.

[0064] In one embodiment, the data processing component includes a voltage acquisition unit, an analog-to-digital conversion unit, and a post-processing unit.

[0065] The voltage acquisition unit is connected to a rotary potentiometer and a linear potentiometer respectively, and is used to acquire the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer.

[0066] The analog-to-digital conversion unit is used to convert the analog angular position voltage signal output by the rotary potentiometer into a first digital signal, convert the analog displacement voltage signal output by the linear potentiometer into a second digital signal, and transmit the first and second digital signals to the post-processing unit.

[0067] The post-processing unit is used to calculate the pre-impact kinetic energy of the rotating motion device based on the first digital signal and the post-impact potential energy of the energy-absorbing device based on the second digital signal; and to obtain the impact performance test results of the micro sample to be tested based on the pre-impact kinetic energy and post-impact potential energy analysis.

[0068] In this embodiment, the voltage acquisition unit can be implemented using a voltage sensor or a voltage acquisition circuit; the actual structure of the voltage acquisition unit is not limited here. The analog-to-digital converter (ADC) is used to convert the analog voltage signal output by the potentiometer into a computer-recognizable digital signal. It can be connected to the post-processing unit via a USB interface to achieve data acquisition. The post-processing unit can be a laptop computer, mobile terminal, computer equipment, or other devices capable of data analysis.

[0069] In practical applications, the pendulum device and its additional components can be configured as a voltage acquisition unit capable of simultaneously collecting position data from both a rotary potentiometer and a linear potentiometer. The rotary potentiometer monitors the rotation angle and position of the pendulum, while the linear potentiometer measures the linear displacement of the low-friction track after impact. This data is transmitted in real time to the post-processing unit via an analog-to-digital converter.

[0070] The post-processing unit calculates the kinetic energy of the pendulum before impact and the energy stored in the track spring after impact, based on the collected position data. Specifically, the kinetic energy before impact is related to the mass, height, and gravitational acceleration of the pendulum, while the track energy after impact is calculated using the spring constant and the linear displacement of the track. The energy absorbed by the micro-sample under test during the impact is the difference between the kinetic energy before impact and the track energy after impact.

[0071] In one embodiment, the data processing component further includes a power supply unit and a display unit; the power supply unit and the display unit are respectively connected to a rotary potentiometer and a linear potentiometer; the power supply unit adopts a dual-output power supply for powering the rotary potentiometer and the linear potentiometer; the display unit is used to display the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer.

[0072] In this embodiment, the power supply unit adopts a dual-output power supply, which can stably provide 10-volt DC power to the two potentiometers simultaneously.

[0073] The display unit can be a display panel used to display the output voltage of the selected potentiometer. The display unit and power supply unit can be configured separately or directly integrated into a single device; the specific configuration method can be determined based on the needs of the actual application scenario.

[0074] Based on the above steps, this embodiment can directly read the output voltage of the selected potentiometer by setting up a display unit, which provides convenience for real-time monitoring.

[0075] In one embodiment, the pre-impact parameter measurement component further includes a manual trigger and a limiting device. The manual trigger is connected to the limiting device, and the limiting device is connected to the rotary motion device. The limiting device is used to fix the initial position of the rotary motion device.

[0076] The manual trigger is used to generate a trigger voltage signal and send the trigger voltage signal to the limit device so that the limit device releases the rotating motion device; after receiving the trigger voltage signal sent by the manual trigger, the limit device releases the fixed constraint on the rotating motion device.

[0077] In this embodiment, to reduce unnecessary data volume and precisely control the timing of data acquisition, a manual trigger capable of emitting a trigger voltage signal can be used, such as a manual trigger emitting a 3-volt TTL voltage. The trigger voltage signal of the manual trigger can be adaptively configured according to the 1 to 5 volt TTL voltage required by the digital trigger. By setting a manual trigger, this embodiment ensures precise triggering of the data acquisition process.

[0078] In this embodiment, the limiting device is mainly used to fix and constrain the position of the pendulum before the impact test begins, so that the pendulum remains fixed in its initial position, thereby ensuring the accuracy of the test. It should be noted that the limiting device can also cooperate with a display unit to observe the rotation angle and position of the pendulum while fixing its position, in order to determine the pre-impact energy to be released. It should be noted that the actual structure of the limiting device can be determined according to the actual type of rotary motion device in the actual application scenario, and is not limited here.

[0079] In summary, this embodiment provides a micro-sample impact performance testing system. By accurately collecting key parameters before and after impact and combining them with energy calculation methods, it achieves real-time, online monitoring and data analysis of the micro-sample impact process. This solves the problems of low accuracy and poor applicability of traditional testing methods, providing strong support for the reliability assessment of micro-samples. It has advantages such as high precision, high sensitivity, and strong versatility.

[0080] In one embodiment, such as Figure 3 As shown, a control method for a micro-sample impact performance testing system is provided, which can be applied to... Figure 1 Taking the data processing component in the example, the following steps are included:

[0081] S301, The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from the initial position to the impact position;

[0082] S302, The parameter measurement component after impact acquires the linear displacement signal from the impact position to the target position from the displacement device.

[0083] S303, the energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal;

[0084] S304, the impact performance test results of the micro sample to be tested are obtained based on the energy before and after the impact.

[0085] In this embodiment, the specific implementation of the control method can be referred to the specific implementation of the aforementioned system embodiment, and will not be repeated here.

[0086] This embodiment presents a control method for a micro-sample impact performance testing system, which enables real-time, online monitoring and data analysis of the micro-sample impact process, achieves fully automated micro-sample impact performance testing, and can quickly and accurately obtain the impact performance test results of the micro-sample under test, providing strong support for the reliability assessment of micro-sample impact performance.

[0087] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0088] Based on the same inventive concept, this application also provides a control device for a micro-sample impact performance testing system, which implements the control method for the micro-sample impact performance testing system described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of the control device embodiments of the micro-sample impact performance testing system provided below can be found in the limitations of the control method for the micro-sample impact performance testing system described above, and will not be repeated here.

[0089] In one embodiment, such as Figure 4 As shown, a control device 400 for a micro specimen impact performance testing system is provided, comprising: a first acquisition module 410, a second acquisition module 420, a first analysis module 430, and a second analysis module 440, wherein:

[0090] The first acquisition module 410 acquires the angular position signal of the rotating motion device from the initial position to the impact position by the pre-impact parameter measurement component.

[0091] The second acquisition module 420 acquires the linear displacement signal from the impact position to the target position collected by the post-impact parameter measurement component.

[0092] The first analysis module 430 analyzes the energy before impact based on the angular position signal and analyzes the energy after impact based on the linear displacement signal.

[0093] The second analysis module 440 obtains the impact performance test results of the micro sample to be tested based on the energy before and after the impact.

[0094] The various modules in the control device of the aforementioned micro-sample impact performance testing system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0095] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 5 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a control method for a miniature specimen impact performance testing system. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0096] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0097] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0098] The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from its initial position to the impact position;

[0099] The post-impact parameter measurement component acquires the linear displacement signal from the impact position to the target position from the displacement device;

[0100] The energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal.

[0101] The impact performance test results of the micro-sample under test are obtained based on the energy before and after the impact.

[0102] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0103] The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from its initial position to the impact position;

[0104] The post-impact parameter measurement component acquires the linear displacement signal from the impact position to the target position from the displacement device;

[0105] The energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal.

[0106] The impact performance test results of the micro-sample under test are obtained based on the energy before and after the impact.

[0107] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0108] The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from its initial position to the impact position;

[0109] The post-impact parameter measurement component acquires the linear displacement signal from the impact position to the target position from the displacement device;

[0110] The energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal.

[0111] The impact performance test results of the micro-sample under test are obtained based on the energy before and after the impact.

[0112] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0113] 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.

[0114] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A micro-sample impact performance testing system, characterized in that, include: The system includes a pre-impact parameter measurement component, a post-impact parameter measurement component, and a data processing component; the data processing component is connected to both the pre-impact parameter measurement component and the post-impact parameter measurement component. The pre-impact parameter measurement component includes a rotary motion device and a rotary potentiometer. The rotary potentiometer is disposed at the movable connection end of the rotary motion device and is used to acquire the angular position signal of the rotary motion device from the initial position to the impact position, and transmit the angular position signal to the data processing component. The post-impact parameter measurement component includes a displacement device, a track platform, a linear potentiometer, and an energy absorption device. Both the displacement device and the energy absorption device are mounted on the track platform, with the displacement device connected to the energy absorption device. A sample clamp is mounted on the displacement device to fix the micro-sample to be tested. The linear potentiometer is mounted on the displacement device and is used to acquire the linear displacement signal of the displacement device from the impact position to the target position, and transmit the linear displacement signal to the data processing component. The target position is the maximum distance the displacement device moves on the track platform after the rotary motion device collides with the micro-sample to be tested. The data processing component is used to analyze the angular position signal to obtain the energy before impact, and to analyze the linear displacement signal to obtain the energy after impact; and to analyze the energy before impact and the energy after impact to obtain the impact performance test results of the micro-sample to be tested.

2. The system according to claim 1, characterized in that, The coefficient of friction of the track platform is less than a preset threshold. One side of the energy-absorbing device is connected to the displacement device, and the other side is located at the end of the track platform away from the rotary motion device. The energy-absorbing device is a helical spring, which is used to absorb the kinetic energy of the displacement device after contacting it. The data processing component is used to analyze and obtain the post-impact energy based on the linear displacement signal and the elastic coefficient of the helical spring.

3. The system according to claim 1, characterized in that, The data processing component includes a voltage acquisition unit, an analog-to-digital conversion unit, and a post-processing unit; The voltage acquisition unit is connected to the rotary potentiometer and the linear potentiometer respectively, and is used to acquire the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer; The analog-to-digital conversion unit is used to convert the analog angular position voltage signal output by the rotary potentiometer into a first digital signal, convert the analog displacement voltage signal output by the linear potentiometer into a second digital signal, and transmit the first digital signal and the second digital signal to the post-processing unit. The post-processing unit is used to calculate the pre-impact kinetic energy of the rotating motion device based on the first digital signal, and to calculate the post-impact potential energy of the energy-absorbing device based on the second digital signal; and to analyze the impact performance test results of the micro sample to be tested based on the pre-impact kinetic energy and the post-impact potential energy.

4. The system according to claim 3, characterized in that, The data processing component further includes a power supply unit and a display unit; the power supply unit and the display unit are respectively connected to the rotary potentiometer and the linear potentiometer; the power supply unit adopts a dual-output power supply for supplying power to the rotary potentiometer and the linear potentiometer; the display unit is used to display the output voltage of the rotary potentiometer and the output voltage of the linear potentiometer.

5. The system according to claim 1, characterized in that, The rotating motion device is a pendulum; The data processing component is used to analyze and obtain the pre-impact energy based on the angular position signal, pendulum mass, pendulum height, and gravitational acceleration.

6. The system according to claim 5, characterized in that, The displacement device includes an adjustable mounting mechanism, which is used to adjust the height of the sample clamp and the position and angle of the energy absorption device.

7. The system according to claim 1, characterized in that, The pre-impact parameter measurement component also includes a manual trigger and a limiting device. The manual trigger is connected to the limiting device, and the limiting device is connected to the rotary motion device. The limiting device is used to fix the initial position of the rotary motion device. The manual trigger is used to generate a trigger voltage signal and send the trigger voltage signal to the limiting device so that the limiting device releases the rotating motion device; after receiving the trigger voltage signal sent by the manual trigger, the limiting device releases the fixed constraint on the rotating motion device.

8. A control method for a micro-sample impact performance testing system, characterized in that, include: The pre-impact parameter measurement component acquires the angular position signal of the rotating motion device from its initial position to the impact position; The post-impact parameter measurement component acquires the linear displacement signal from the impact position to the target position from the displacement device; The energy before impact is obtained by analyzing the angular position signal, and the energy after impact is obtained by analyzing the linear displacement signal. The impact performance test results of the micro-sample to be tested are obtained based on the energy before and after the impact.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the control method for the micro specimen impact performance testing system of claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method for the micro specimen impact performance testing system according to any one of claims 1 to 6.

Images