Methods, devices, equipment, storage media, and computer programs for acquiring wave velocity

Abstract

This disclosure relates to the field of signal processing technology, and particularly to a method, apparatus, device, storage medium, and computer program for acquiring wave velocity. The method includes: determining an amplitude variation graph of a high-resolution test acoustic signal to be acquired; wherein the amplitude variation graph is used to indicate the relationship between the amplitude of the acoustic signal to be acquired and time; determining a first arrival point and a target time point based on the amplitude variation graph; wherein the first arrival point is used to indicate the amplitude value of the first trough of the amplitude variation graph, and the target time point is used to indicate the occurrence time of the first arrival point; acquiring the docking time between a sensing probe and the device under test; and processing the docking time and the target time point to obtain the wave velocity of the acoustic signal to be acquired.

Description

Technical Field

[0001] This disclosure relates to the field of signal processing technology, and in particular to a method, apparatus, device, storage medium, and computer program for picking up wave velocity. Background Technology

[0002] In seismic exploration, P-wave and S-wave velocities carry a wealth of stratigraphic information, effectively describing the complex pore structure, physical properties, and fluidity of reservoirs. The propagation characteristics of acoustic waves in rocks are closely related to physical parameters such as density, elastic modulus, and Poisson's ratio. Therefore, accurately determining the first arrival time of acoustic waves is crucial for subsequent rock property analysis and geological seismic interpretation. Autoscan high-resolution acoustic wave testing is a key technology in the development of high-resolution rock physics testing techniques.

[0003] In related technologies, with the rise of machine learning and artificial intelligence, some researchers have begun to apply these technologies to the acquisition of acoustic first arrivals in core testing. By training machine learning models, automatic identification of acoustic signals and accurate acquisition of first arrival times can be achieved, further improving acquisition efficiency and accuracy. However, no method or technology has yet been established for acquiring first arrivals of high-resolution acoustic signals. Therefore, establishing a method for high-resolution first arrival acquisition can promote the development of seismic rock physics towards higher precision technologies. Summary of the Invention

[0004] This disclosure provides a method, apparatus, device, storage medium, and computer program for picking up wave velocities to establish a high-resolution method for picking up first arrivals, thereby promoting the development of seismic rock physics towards higher precision technologies.

[0005] Firstly, this disclosure provides a method for picking up wave velocity, including:

[0006] Determine the amplitude variation graph of the acoustic wave signal to be picked up for high-resolution testing; wherein the amplitude variation graph is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time.

[0007] Based on the amplitude variation graph, the initial arrival point and the target time point are determined; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude variation graph, and the target time point is used to indicate the time when the initial arrival point occurs;

[0008] The docking time between the sensing probe and the device under test is obtained;

[0009] The docking time and the target time point are processed to obtain the wave velocity of the acoustic signal to be picked up.

[0010] In some embodiments, determining the amplitude variation map of the acoustic signal to be picked up for high-resolution testing includes:

[0011] Determine the first amplitude of the acoustic wave signal to be picked up at different time points;

[0012] Based on the first amplitude, plot the amplitude variation of the acoustic wave signal to be picked up emitted by the device under test.

[0013] In some embodiments, determining the initial arrival point and the target time point based on the amplitude variation graph includes:

[0014] Based on the amplitude variation diagram, the initial arrival point and a specified time point close to the initial arrival point are determined;

[0015] The target time point is determined based on the amplitude corresponding to the initial arrival point and the specified time point.

[0016] In some embodiments, determining the target time point based on the amplitude corresponding to the initial arrival point and the specified time point includes:

[0017] Determine the third amplitude and the fourth amplitude; wherein the third amplitude is used to indicate the amplitude corresponding to a specified time point of the previous moment adjacent to the first arrival point, and the fourth amplitude is used to indicate the amplitude corresponding to a specified time point of the two moments preceding the first arrival point;

[0018] The amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude are processed to obtain the target time point.

[0019] In some embodiments, processing the amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude to obtain the target time point includes:

[0020] Determine the first difference between the initial arrival point and the third amplitude;

[0021] Determine the second difference between the third amplitude and the fourth amplitude;

[0022] The target time point is determined based on the ratio between the first difference and the second difference.

[0023] In some embodiments, processing the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up includes:

[0024] Determine the third difference between the target time point and the docking time;

[0025] The third difference is processed to obtain the wave velocity of the acoustic signal to be picked up.

[0026] Secondly, this disclosure provides a wave velocity pickup device, comprising:

[0027] The first determining module is used to determine the amplitude variation diagram of the acoustic wave signal to be picked up in the high-resolution test; wherein, the amplitude variation diagram is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time.

[0028] The second determining module is used to determine the initial arrival point and the target time point based on the amplitude change graph; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude change graph, and the target time point is used to indicate the occurrence time of the initial arrival point;

[0029] The acquisition module is used to acquire the docking time between the sensing probe and the device under test;

[0030] The processing module is used to process the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up.

[0031] Thirdly, this disclosure provides a computer device including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the foregoing aspects.

[0032] Fourthly, this disclosure provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the steps of the methods described in the above aspects.

[0033] Fifthly, this disclosure provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the methods described in the foregoing aspects.

[0034] This disclosure provides a method, apparatus, device, storage medium, and computer program for wave velocity acquisition. By determining the amplitude variation diagram of a high-resolution acoustic signal to be acquired, the initial arrival point of the signal is determined. Then, a sensing probe capable of detecting the high-resolution acoustic signal is used to detect the signal, thereby determining its wave velocity. In high-resolution rock physics ultrasonic velocity testing, accurately acquiring the initial arrival point of the effective signal is a key technical requirement. Currently, the location of the initial arrival point for waveform acquisition in high-resolution rock physics ultrasonic testing is not clearly defined. Therefore, this solution provides a method for determining the wave velocity of a high-resolution acoustic signal, enabling the development of seismic rock physics towards higher precision technology. Attached Figure Description

[0035] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0036] Figure 1 This is a flowchart illustrating a wave velocity picking method provided in an embodiment of the present disclosure.

[0037] Figure 2 This is a graph showing the amplitude variation of the signal to be picked up in a wave velocity picking method provided in an embodiment of this disclosure.

[0038] Figure 3 The acoustic wave test waveform diagram is provided for a wave velocity pickup method according to an embodiment of this disclosure.

[0039] Figure 4 An acoustic test result diagram of a wave velocity pickup method provided in an embodiment of this disclosure.

[0040] Figure 5 This is a schematic diagram of a wave velocity pickup device provided in an embodiment of the present disclosure.

[0041] Figure 6 This is a schematic diagram of an electronic device provided in an embodiment of the present disclosure.

[0042] In the accompanying drawings, the same parts are referred to by the same reference numerals, and the drawings are not drawn to scale. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solutions of this disclosure, and to fully understand and implement the process of how this disclosure applies technical means to solve technical problems and achieve corresponding technical effects, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. The embodiments of this disclosure and the various features within them can be combined with each other without conflict, and the resulting technical solutions are all within the protection scope of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort should fall within the protection scope of this disclosure.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0047] Studies have shown that P-wave and S-wave velocities in seismic exploration carry a wealth of stratigraphic information, effectively describing the complex pore structure, physical properties, and fluidity of reservoirs. The propagation characteristics of acoustic waves in rocks are closely related to physical parameters such as density, elastic modulus, and Poisson's ratio. Therefore, accurately determining the first arrival time of acoustic waves is crucial for subsequent rock property analysis and geological seismic interpretation. Autoscan high-resolution acoustic wave testing is a key technology in the development of high-resolution rock physics testing techniques.

[0048] In related technologies, with the rise of machine learning and artificial intelligence, some researchers have begun to apply these technologies to the acquisition of acoustic first arrivals in core testing. By training machine learning models, automatic identification of acoustic signals and accurate acquisition of first arrival times can be achieved, further improving acquisition efficiency and accuracy. However, no method or technology has yet been established for acquiring first arrivals of high-resolution acoustic signals. Therefore, establishing a method for high-resolution first arrival acquisition can promote the development of seismic rock physics towards higher precision technologies.

[0049] Based on the above research, this disclosure provides a method for picking up wave velocity. By determining the amplitude variation diagram of the high-resolution acoustic signal to be picked up, the initial arrival point of the acoustic signal is determined. Then, a sensing probe capable of detecting the high-resolution acoustic signal is used to detect the signal, thereby determining the wave velocity. Since accurately picking up the initial arrival point of the effective signal is crucial in high-resolution rock physics ultrasonic velocity testing, and the location of the initial arrival point in high-resolution rock physics acoustic testing is currently unclear, this method provides a way to determine the wave velocity of a high-resolution acoustic signal, enabling the development of seismic rock physics towards higher precision technology.

[0050] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0051] To facilitate understanding of this embodiment, a behavior recognition method disclosed in this disclosure will first be described in detail. The execution subject of the behavior recognition method provided in this disclosure is generally an electronic device with a certain computing power. In some possible implementations, the behavior recognition method can be implemented by a processor calling computer-readable instructions stored in memory.

[0052] Example 1

[0053] Figure 1 This is a schematic flowchart illustrating a wave velocity picking method provided in an embodiment of this disclosure. Figure 1 As shown, a smart device control method includes:

[0054] S101. Determine the amplitude variation diagram of the acoustic wave signal to be picked up for high-resolution testing; wherein, the amplitude variation diagram is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time.

[0055] In embodiments of this disclosure, the relationship between the amplitude and time of the acoustic signal to be picked up can be determined according to a high-resolution test.

[0056] After determining the relationship between the amplitude and time of the acoustic signal to be picked up, the above amplitude variation graph can be obtained by plotting the relationship between the amplitude and time of the acoustic signal to be picked up.

[0057] Here, amplitude can be defined as the vertical axis of the amplitude change graph, and time can be defined as the horizontal axis of the amplitude change graph.

[0058] S102. Based on the amplitude variation graph, determine the initial arrival point and the target time point; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude variation graph, and the target time point is used to indicate the occurrence time of the initial arrival point.

[0059] In the embodiments of this disclosure, the point corresponding to the first trough in the amplitude variation graph can be determined as the first arrival point. The time on the horizontal axis corresponding to the first arrival point is determined as the target time point.

[0060] The initial arrival point can be determined as follows: First, the average amplitude over a preset time period can be determined. Then, the amplitude that is less than the average and has the largest difference from the average over the preset time period can be determined as the initial arrival point.

[0061] Here, the first arrival point can also be determined through observation, that is, by identifying the first trough in the amplitude variation graph as the first arrival point. Alternatively, the first arrival point can be determined based on the amplitude variation graph using momentum and stochastic indices.

[0062] S103. Obtain the docking time between the sensing probe and the device under test.

[0063] In the embodiments of this disclosure, the sensing probe is a ground acoustic sensor probe, which can sense high-resolution acoustic signals.

[0064] Here, the sensor probe can be set up at the seismic observation station. After the sensor probe is connected to the seismic observation station, the start time of the sensor probe can be determined, and this start time is defined as the docking time.

[0065] S104. Process the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up.

[0066] In embodiments of this disclosure, the time interval at which the first trough occurs after the sensing probe begins operation can be determined based on the docking time and the target time point.

[0067] After determining the time interval, the wavelength of the acoustic signal to be picked up can be determined based on the time interval. Then, the wave velocity of the acoustic signal to be picked up can be determined based on the wavelength of the acoustic signal to be picked up and the amplitude corresponding to the first arrival point.

[0068] In embodiments of this disclosure, firstly, an amplitude variation map of the acoustic signal to be picked up under high-resolution testing is determined; wherein, the amplitude variation map is used to indicate the relationship between the amplitude of the acoustic signal to be picked up and time; secondly, based on the amplitude variation map, a first arrival point and a target time point are determined; wherein, the first arrival point is used to indicate the amplitude value of the first trough of the amplitude variation map, and the target time point is used to indicate the occurrence time of the first arrival point; thirdly, the docking time between the sensing probe and the device to be tested is obtained; finally, the docking time and the target time point are processed to obtain the wave velocity of the acoustic signal to be picked up.

[0069] In the above embodiment, the initial arrival point of the acoustic signal to be picked up is determined by analyzing the amplitude variation diagram of the high-resolution acoustic signal. Then, a sensing probe capable of detecting the high-resolution acoustic signal is used to detect the signal, thereby determining its wave velocity. Since accurately capturing the initial arrival point of the effective signal is crucial in high-resolution rock physics ultrasonic velocity testing, and the location of the initial arrival point in high-resolution rock physics acoustic testing is currently unclear, this solution provides a method for determining the wave velocity of a high-resolution acoustic signal to be picked up, enabling the development of seismic rock physics towards higher precision technology.

[0070] Example 2

[0071] Based on the above embodiments, the amplitude variation diagram of the acoustic signal to be picked up for high-resolution testing is determined, specifically including the following steps:

[0072] First, determine the first amplitude of the acoustic wave signal to be picked up at different time points;

[0073] Then, based on the first amplitude, a graph showing the amplitude variation of the acoustic wave signal to be picked up emitted by the device under test is plotted.

[0074] In embodiments of this disclosure, the amplitude of the acoustic wave signal to be picked up can be acquired, and the acquired amplitude can be determined as the first amplitude.

[0075] Here, after determining the first amplitude, the amplitude variation diagram of the acoustic wave signal to be picked up emitted by the device under test can be plotted by using the first amplitude and the corresponding time point of occurrence of the first amplitude.

[0076] Reference Figure 2 The diagram shown is an amplitude variation graph of the signal to be picked up in a wave velocity picking method provided in this embodiment of the present disclosure, wherein:

[0077] The horizontal axis is used to indicate time, and its unit is 10. -5 s, and the time intervals at the same distance intervals are the same, that is, t1=t2.

[0078] The vertical axis is used to indicate the amplitude, with the amplitude at the midpoint being 0.

[0079] Example 3

[0080] Based on the above embodiments, the determination of the initial arrival point and the target time point based on the amplitude change diagram specifically includes the following steps:

[0081] First, based on the amplitude variation diagram, the initial arrival point and a specified time point close to the initial arrival point are determined;

[0082] Then, based on the amplitude corresponding to the initial arrival point and the specified time point, the target time point is determined.

[0083] In embodiments of this disclosure, the first trough can be determined in the amplitude variation graph, and the location of the first trough can be determined as the first arrival point.

[0084] Here, the time corresponding to the location of the first trough can be determined as the target time point.

[0085] like Figure 2 As shown, the location of the first trough corresponds to time t0. Therefore, this point can be determined as the first arrival point, and t0 can be determined as the target time point.

[0086] Example 4

[0087] Based on the above embodiments, the target time point is determined based on the amplitude corresponding to the initial arrival point and the specified time point, specifically including the following steps:

[0088] First, the third amplitude and the fourth amplitude are determined; wherein, the third amplitude is used to indicate the amplitude corresponding to a specified time point of the previous moment adjacent to the first arrival point, and the fourth amplitude is used to indicate the amplitude corresponding to a specified time point of the two moments preceding the first arrival point;

[0089] Then, the amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude are processed to obtain the target time point.

[0090] In the embodiments of this disclosure, the third time point t3 of the previous moment of the initial arrival point can be determined, and the amplitude corresponding to the third time point t3 can be determined as the third amplitude.

[0091] Then, the fourth time point t4 between the two moments at the initial arrival point can be determined, and the amplitude corresponding to the fourth time point t4 can be determined as the fourth amplitude.

[0092] After determining the third and fourth amplitudes, the amplitudes corresponding to the initial arrival point, the third amplitude, and the fourth amplitude can be calculated to determine whether the initial arrival point meets the preset amplitude conditions.

[0093] Here, if the initial arrival point meets the preset amplitude condition, the time corresponding to the initial arrival point is determined as the target time point.

[0094] Example 5

[0095] Based on the above embodiments, the amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude are processed to obtain the target time point, specifically including the following steps:

[0096] First, determine the first difference between the initial arrival point and the third amplitude;

[0097] Next, determine the second difference between the third amplitude and the fourth amplitude;

[0098] Finally, the target time point is determined based on the ratio between the first difference and the second difference.

[0099] In the embodiments of this disclosure, the amplitude F(t) at the first arrival point can be subtracted from the third amplitude F(t-1) (i.e., the amplitude F(t3) corresponding to the third time point), and the result of the subtraction is determined as the first difference C1.

[0100] The first difference C1 satisfies the following condition:

[0101] C1 = F(t) - F(t-1).

[0102] Here, the third amplitude F(t-1) and the fourth amplitude F(t-1) (i.e., the amplitude F(t4) corresponding to the fourth time point) can be subtracted, and the result of the subtraction is determined as the second difference C2.

[0103] The second difference C2 satisfies the following condition:

[0104] C2 = F(t-1) - F(t-1).

[0105] Here, after determining the first difference C1 and the second difference C2, the ratio B of the first difference C1 to the second difference C2 can be determined.

[0106] The ratio B satisfies the following condition:

[0107] B = C1 / C2.

[0108] Here, after determining the ratio B, it can be determined whether the ratio B satisfies the preset amplitude condition. The preset amplitude condition can be a preset amplitude threshold.

[0109] For example, if the ratio B > 5, the ratio B is determined to satisfy the preset amplitude threshold.

[0110] Here, if the ratio B satisfies the preset amplitude threshold, the time t0 corresponding to the initial arrival point is determined as the target time point.

[0111] Example 6

[0112] Based on the above embodiments, the docking time and the target time point are processed to obtain the wave velocity of the acoustic signal to be picked up, specifically including the following steps:

[0113] First, determine the third difference between the target time point and the docking time;

[0114] Secondly, the third difference is processed to obtain the wave velocity of the acoustic signal to be picked up.

[0115] In the embodiments of this disclosure, firstly, the time T0 at which the sensor probe starts operating can be determined. Then, the time T0 at which the sensor probe starts operating can be subtracted from the target time point t0, and the result of the subtraction can be determined as the third difference C3.

[0116] The third difference C3 satisfies the following condition:

[0117] C3 = t0 - T0.

[0118] Then, the propagation distance of the sound wave signal to be picked up can be determined.

[0119] Here, after determining the propagation distance of the acoustic signal to be picked up, the wave speed of the acoustic signal to be picked up can be determined based on the aforementioned propagation distance and the third difference. For example, the ratio of the propagating signal to the third difference can be determined as the wave speed of the acoustic signal to be picked up.

[0120] The wave velocities of the acoustic signals to be picked up include transverse wave velocities and longitudinal wave velocities. (There was a question here, which has been corrected.)

[0121] Example 7

[0122] Based on the above embodiments, this embodiment provides an application example.

[0123] The above method was used to perform high-resolution acoustic wave tests on actual standard aluminum samples, plexiglass, and stainless steel, and to perform initial arrival pickup and velocity calculation of waveform signals.

[0124] Reference Figure 3 The image shown is an acoustic wave test waveform diagram of a wave velocity pickup method provided in an embodiment of this disclosure, including longitudinal wave velocity and transverse wave velocity test waveform diagrams.

[0125] The longitudinal and transverse wave velocities were calculated for different pickup positions on aluminum, plexiglass, and stainless steel samples. Simultaneously, the longitudinal and transverse wave velocities of the same samples were measured using a readily available acoustic wave testing probe.

[0126] Reference Figure 4 The image shown is an acoustic test result diagram of a wave velocity pickup method provided in this embodiment of the present disclosure. The velocity values ​​at different pickup points are obtained by velocity calculation. Table 1 shows the calculated longitudinal wave velocity and transverse wave velocity values, as well as the error estimation of the longitudinal wave velocity and transverse wave velocity picked up at different high-resolution positions compared with the test results of the Olympus probe.

[0127] Here, in the above calculation process, Mp and Mp0 represent the test speed results of the Olympus probe and the high-resolution test speed results, respectively. The error estimation formula is: |Mp0-Mp| / Mp0.

[0128] Referring to Table 1, comparative analysis yields the following results. Figure 3 The velocity results at the wave trough positions shown have the smallest overall error and best match the actual acoustic velocity values ​​of the material, thus demonstrating the reliability and effectiveness of this high-resolution acoustic velocity acquisition method. The procedure is simple and achieves accurate acquisition of P-wave and S-wave velocities during rock physics acoustic wave testing.

[0129] Table 1

[0130]

[0131]

[0132] In each waveform, the leftmost point is the first position point, the middle point is the second position point, and the rightmost point is the third position point.

[0133] Example 8

[0134] Based on the above embodiments and the same inventive concept, this disclosure also provides a wave velocity picking device corresponding to the wave velocity picking method. Since the principle of the device in this disclosure for solving the problem is similar to the wave velocity picking method described above, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0135] Reference Figure 5 The diagram shown is a schematic of a wave velocity pickup device provided in an embodiment of this disclosure. The device includes: a first determining module 11, a second determining module 12, an acquiring module 13, and a processing module 14; wherein:

[0136] The first determining module is used to determine the amplitude variation diagram of the acoustic wave signal to be picked up in the high-resolution test; wherein, the amplitude variation diagram is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time.

[0137] The second determining module is used to determine the initial arrival point and the target time point based on the amplitude change graph; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude change graph, and the target time point is used to indicate the occurrence time of the initial arrival point;

[0138] The acquisition module is used to acquire the docking time between the sensing probe and the device under test;

[0139] The processing module is used to process the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up.

[0140] Specifically, the first determining module is also used to determine the first amplitude of the acoustic wave signal to be picked up at different time points;

[0141] Based on the first amplitude, plot the amplitude variation of the acoustic wave signal to be picked up emitted by the device under test.

[0142] Specifically, the second determining module is also used to determine the initial arrival point and a specified time point close to the initial arrival point based on the amplitude change graph;

[0143] The target time point is determined based on the amplitude corresponding to the initial arrival point and the specified time point.

[0144] Furthermore, the second determining module is also used to determine a third amplitude and a fourth amplitude; wherein the third amplitude is used to indicate the amplitude corresponding to a specified time point of the previous moment adjacent to the initial arrival point, and the fourth amplitude is used to indicate the amplitude corresponding to a specified time point of the two moments preceding the initial arrival point.

[0145] The amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude are processed to obtain the target time point.

[0146] Furthermore, the second determining module is also used to determine a first difference between the initial arrival point and the third amplitude;

[0147] Determine the second difference between the third amplitude and the fourth amplitude;

[0148] The target time point is determined based on the ratio between the first difference and the second difference.

[0149] Specifically, the processing module is also used to determine a third difference between the target time point and the docking time;

[0150] The third difference is processed to obtain the wave velocity of the acoustic signal to be picked up.

[0151] This embodiment determines the initial arrival point of the acoustic signal to be picked up by analyzing the amplitude variation diagram of the high-resolution signal. Then, a sensing probe capable of detecting the high-resolution acoustic signal is used to detect the signal, thereby determining its wave velocity. Accurately capturing the initial arrival point of the effective signal is crucial in high-resolution rock physics ultrasonic velocity testing. Currently, the location of the initial arrival point in high-resolution rock physics ultrasonic testing is not clearly defined. Therefore, this method provides a way to determine the wave velocity of a high-resolution acoustic signal, enabling the development of seismic rock physics towards higher precision technology.

[0152] The processing flow of each module in the device and the interaction flow between each module can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.

[0153] Example 9

[0154] The processing flow of each module in the device and the interaction flow between each module can be referred to the relevant descriptions in the above method embodiments, and will not be detailed here.

[0155] Corresponding to Figure 1 In addition to the text category detection method in this disclosure, this embodiment also provides an electronic device 400, such as... Figure 4 The diagram shown is a structural schematic of an electronic device 400 provided in an embodiment of this disclosure, including:

[0156] The system includes a processor 41, a memory 42, and a bus 43. The memory 42 stores execution instructions and includes main memory 421 and external memory 422. The main memory 421, also called internal memory, temporarily stores the computational data in the processor 41, as well as data exchanged with external memory such as a hard disk. The processor 41 exchanges data with the external memory 422 through the main memory 421. When the electronic device 400 is running, the processor 41 communicates with the memory 42 through the bus 43, causing the processor 41 to execute the following instructions:

[0157] Determine the amplitude variation graph of the acoustic wave signal to be picked up for high-resolution testing; wherein the amplitude variation graph is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time.

[0158] Based on the amplitude variation graph, the initial arrival point and the target time point are determined; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude variation graph, and the target time point is used to indicate the time when the initial arrival point occurs;

[0159] The docking time between the sensing probe and the device under test is obtained;

[0160] The docking time and the target time point are processed to obtain the wave velocity of the acoustic signal to be picked up.

[0161] Example 10

[0162] Based on the above embodiments, this embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.

[0163] In some embodiments of this example, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the steps of the method described in the above embodiments.

[0164] In some embodiments of this example, a computer program product is provided, including a computer program / instructions, characterized in that the computer program, when executed by a processor, implements the steps of the method described in the above embodiments.

[0165] The processor may include, but is not limited to, one or more processors or microprocessors. Each processor may be implemented as an Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor, or other electronic component, for executing the methods described in the above embodiments.

[0166] Computer-readable storage media can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Computer-readable storage media may include, but are not limited to, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, and computer storage media (e.g., hard disks, floppy disks, solid-state drives, removable disks, CD-ROMs, DVD-ROMs, Blu-ray discs, etc.).

[0167] Computer-readable storage media may also store at least one computer-executable program / instruction, such as computer-readable instructions. Computer-readable storage media include, but are not limited to, volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Computer-readable storage media may include, for example, read-only memory (ROM), hard disk, flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions stored on the computer-readable storage medium, the various methods described above can be performed.

[0168] In addition, the computer device may include (but is not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (e.g., keyboard, mouse, speakers, etc.).

[0169] The processor can communicate with external devices via the I / O bus through wired or wireless networks.

[0170] In one embodiment, the at least one computer-executable instruction may also be compiled into or comprise a software product / computer program product, wherein one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods in the embodiments described herein.

[0171] In the embodiments provided in this disclosure, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0172] It should be noted that, in this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0173] While the embodiments disclosed herein are as described above, the foregoing content is merely for the purpose of facilitating understanding of this disclosure and is not intended to limit this disclosure. Any person skilled in the art to which this disclosure pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope of this disclosure; however, the scope of patent protection of this disclosure shall still be determined by the scope defined in the appended claims.

Claims

1. A method for picking up wave velocity, characterized in that, include: Determine the amplitude variation graph of the acoustic wave signal to be picked up for high-resolution testing; wherein the amplitude variation graph is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time. Based on the amplitude variation graph, the initial arrival point and the target time point are determined; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude variation graph, and the target time point is used to indicate the time when the initial arrival point occurs; The docking time between the sensing probe and the device under test is obtained; The docking time and the target time point are processed to obtain the wave velocity of the acoustic signal to be picked up.

2. The method according to claim 1, characterized in that, The determination of the amplitude variation map of the acoustic wave signal to be picked up for high-resolution testing includes: Determine the first amplitude of the acoustic wave signal to be picked up at different time points; Based on the first amplitude, plot the amplitude variation of the acoustic wave signal to be picked up emitted by the device under test.

3. The method according to claim 1, characterized in that, The determination of the initial arrival point and the target time point based on the amplitude variation diagram includes: Based on the amplitude variation diagram, the initial arrival point and a specified time point close to the initial arrival point are determined; The target time point is determined based on the amplitude corresponding to the initial arrival point and the specified time point.

4. The method according to claim 3, characterized in that, Determining the target time point based on the amplitude corresponding to the initial arrival point and the specified time point includes: Determine the third amplitude and the fourth amplitude; wherein the third amplitude is used to indicate the amplitude corresponding to a specified time point of the previous moment adjacent to the first arrival point, and the fourth amplitude is used to indicate the amplitude corresponding to a specified time point of the two moments preceding the first arrival point; The amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude are processed to obtain the target time point.

5. The method according to claim 4, characterized in that, The process of processing the amplitudes corresponding to the first arrival point, the third amplitude, and the fourth amplitude to obtain the target time point includes: Determine the first difference between the initial arrival point and the third amplitude; Determine the second difference between the third amplitude and the fourth amplitude; The target time point is determined based on the ratio between the first difference and the second difference.

6. The method according to claim 1, characterized in that, The process of processing the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up includes: Determine the third difference between the target time point and the docking time; The third difference is processed to obtain the wave velocity of the acoustic signal to be picked up.

7. A wave velocity pickup device, characterized in that, include: The first determining module is used to determine the amplitude variation diagram of the acoustic wave signal to be picked up in the high-resolution test; wherein, the amplitude variation diagram is used to indicate the relationship between the amplitude of the acoustic wave signal to be picked up and time. The second determining module is used to determine the initial arrival point and the target time point based on the amplitude change graph; wherein, the initial arrival point is used to indicate the amplitude value of the first trough of the amplitude change graph, and the target time point is used to indicate the occurrence time of the initial arrival point; The acquisition module is used to acquire the docking time between the sensing probe and the device under test; The processing module is used to process the docking time and the target time point to obtain the wave velocity of the acoustic signal to be picked up.

8. A computer device, comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 6.

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