Method and device for measuring embedding inclination angle of geophone, equipment and storage medium

Abstract

The invention provides a geophone embedding inclination angle measurement method and device, equipment and a storage medium, and belongs to the technical field of geophysical exploration, and the method comprises the steps: applying a forward excitation current to a geophone, and obtaining a first time corresponding to a forward peak value; applying reverse excitation current to the geophone to obtain second time corresponding to a reverse peak value; determining the maximum stroke of the inertial body based on factory parameters of the geophone; the maximum stroke is the maximum limit distance which can be reached by the displacement of the inertia body; based on the first time, the second time and the maximum stroke of the inertial body, the centrality offset of the inertial body is determined; and determining the embedding inclination angle of the geophone based on the centrality offset and the maximum stroke. According to the geophone embedding inclination angle measurement method and device, the equipment and the storage medium provided by the invention, the embedding inclination angle of the geophone can be accurately obtained.

Description

Technical Field

[0001] This application belongs to the field of geophysical exploration technology, and more specifically, relates to a method, device, equipment, and storage medium for measuring the burial tilt angle of a seismic detector. Background Technology

[0002] In the field of seismic exploration, the burial status of seismic detectors directly affects the accuracy of seismic wave signal acquisition, with the burial tilt angle being one of the key influencing factors. Currently, the industry relies on the built-in detection function of nodal seismic instruments to detect the burial tilt angle of detectors, while other methods involve indirect control through adjusting the construction mode and developing construction plans adapted to the detector's performance. External detectors also often require specific adaptation based on parameters such as their core assembly and series / parallel connection methods.

[0003] However, existing built-in detection functions are mostly only compatible with specific types of geophones. The reliability of detection decreases after changing the geophone model or combination. Furthermore, tilt data cannot be directly obtained by adjusting the construction plan. The overall detection method has limited adaptability and is easily affected by external conditions, making it difficult to accurately obtain the buried tilt angle of the seismic geophone. Summary of the Invention

[0004] The purpose of this application is to provide a method, device, equipment, and storage medium for measuring the buried tilt angle of a seismic detector, so as to accurately obtain the buried tilt angle of the seismic detector.

[0005] A first aspect of this application provides a method for measuring the burial tilt angle of a seismic detector, comprising: A forward excitation current is applied to the seismic detector, and the forward time-domain waveform of the seismic detector is obtained based on the excitation current. The first time corresponding to the forward peak value is obtained based on the forward time-domain waveform. A reverse excitation current is applied to the seismic detector, and the reverse time-domain waveform of the seismic detector is obtained based on the excitation current. The second time corresponding to the reverse peak value is obtained based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector; The maximum stroke of the inertial body is determined based on the factory parameters of the seismic detector; the maximum stroke is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector. Based on the first time, the second time, and the maximum travel of the inertial body, determine the centerness offset of the inertial body; The embedment tilt angle of the seismic detector is determined based on the centrality offset and the maximum travel.

[0006] A second aspect of this application provides a seismic detector embedment tilt measurement device, comprising: The acquisition module is used to apply a positive excitation current to the seismic detector, acquire the positive time-domain waveform of the seismic detector based on the excitation current, and acquire the first time corresponding to the positive peak value based on the positive time-domain waveform; and to apply a reverse excitation current to the seismic detector, acquire the reverse time-domain waveform of the seismic detector based on the excitation current, and acquire the second time corresponding to the reverse peak value based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector; The travel acquisition module is used to determine the maximum travel of the inertial body based on the factory parameters of the seismic detector; the maximum travel is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector; The centerness offset calculation module is used to determine the centerness offset of the inertial body based on the first time, the second time, and the maximum travel of the inertial body. The tilt angle calculation module is used to determine the buried tilt angle of the seismic detector based on the centrality offset and the maximum stroke.

[0007] A third aspect of this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the steps of the above-described method for measuring the burial tilt angle of a seismic detector.

[0008] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for measuring the burial tilt angle of a seismic detector.

[0009] The beneficial effects of the seismic detector burial tilt angle measurement method, apparatus, equipment, and storage medium provided in this application embodiment are as follows: This application embodiment, by applying forward and reverse excitation currents and combining the time parameters corresponding to the peak values ​​of the time-domain waveform, eliminates the need for additional tilt sensors or complex mechanical measurements, thus avoiding the accuracy problems caused by installation deviations and vibration interference in traditional measurements. It derives the center offset based on the inherent factory parameters of the seismic detector and measured time data, then calculates the burial tilt angle by correlating it with the maximum stroke, utilizing the detector's own structural characteristics to achieve measurement, reducing errors caused by the external environment and additional components. Compared to traditional methods, this application embodiment eliminates the need for extensive pre-modeling work, simplifies the testing process, improves field construction efficiency, and can accurately obtain the burial tilt angle of the seismic detector. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A simplified physical model diagram of an inclined seismic detector provided in one embodiment of this application; Figure 2 A schematic flowchart illustrating a seismic detector embedding tilt measurement method provided in an embodiment of this application; Figure 3 A structural block diagram of a seismic detector embedded tilt measuring device provided in an embodiment of this application; Figure 4 This is a schematic block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0012] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0013] It is understood that in the embodiments of this application, data such as user information are involved. When the embodiments of this application are applied to specific products or technologies, user permission or consent is required, and the collection, use and processing of related data must comply with relevant laws, regulations and standards.

[0014] It should be noted that the terms "first," "second," etc., used in the specification, claims, and drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0015] Traditional methods for testing the burial tilt angle of seismic detectors have several drawbacks. For example, impulse response testing requires extensive pre-modeling of seismic traces for specific combinations, product types, and surface conditions, making the process cumbersome and introducing uncertainties in the reference values. This makes it impossible to directly, accurately, and quantitatively obtain the burial tilt angle, hindering improvements in field construction efficiency and data acquisition quality. To address this issue, a method is needed that can directly calculate the burial tilt angle using relevant parameters.

[0016] For related technologies, please refer to Figure 1 , Figure 1 This is a simplified physical model diagram of an inclined seismic detector provided in an embodiment of this application. When the free axis of the inertial body m inside the seismic detector forms an angle Q with the gravity axis (i.e., the burial tilt angle of the seismic detector), the axial tensile or compressive force N on the upper spring plate h1 and the lower spring plate h2 supporting the inertial body will decrease accordingly, and satisfy the functional relationship. (Where g is the acceleration due to gravity, and m is the mass of the inertial body); When the seismic detector tilts, the axial tension and pressure on the supporting spring plate decrease, which directly causes the equilibrium point of the inertial body to move upward. This changes both the maximum positive and maximum negative travel of the inertial body. The change in equilibrium displacement is proportional to the change in tension or pressure of the supporting spring plate (i.e., the sine of the tilt angle of the inertial body). Based on this physical law, the burial tilt angle of the seismic detector can be calculated equivalently by measuring the change in displacement of the equilibrium point of the inertial body.

[0017] Please refer to Figure 2 , Figure 2 This is a flowchart illustrating a method for measuring the burial tilt angle of a seismic detector according to an embodiment of this application. The method can be executed by an electronic device and may include: S101: Apply a forward excitation current to the seismic detector, obtain the forward time-domain waveform of the seismic detector based on the excitation current, and obtain the first time corresponding to the forward peak value based on the forward time-domain waveform; apply a reverse excitation current to the seismic detector, obtain the reverse time-domain waveform of the seismic detector based on the excitation current, and obtain the second time corresponding to the reverse peak value based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector.

[0018] In this embodiment, the forward excitation current refers to the driving current that causes the inertial body inside the seismic detector to move in the forward (upward) direction. It is generated by the test current driving circuit, and its magnitude is calculated and determined according to the inherent parameters of the seismic detector. Its purpose is to drive the inertial body to the position of maximum forward displacement. The reverse excitation current refers to the driving current that causes the inertial body inside the seismic detector to move in the reverse (downward) direction. Its calculation logic is the same as that of the forward excitation current, only the polarity is opposite. It is used to drive the inertial body to the position of maximum reverse displacement, and to eliminate system errors in conjunction with the forward test.

[0019] In this embodiment, the forward time-domain waveform is the waveform of the induced electromotive force generated by the free oscillation of the inertial body after the forward excitation current of the seismic detector is stopped, which changes with time. After being processed by the acquisition circuit, it is stored in the form of a digital signal and can reflect the amplitude, frequency and other characteristics of the induced electromotive force during the forward oscillation. The reverse time-domain waveform is the waveform of the induced electromotive force generated by the free oscillation of the inertial body after the reverse excitation current of the seismic detector is stopped, which changes with time. The acquisition and storage logic is consistent with that of the forward time-domain waveform and is used to reflect the change law of the induced electromotive force during the reverse oscillation.

[0020] In this embodiment, the first time and the second time can be obtained by analyzing the stored forward and reverse time domain waveforms, using the sample value comparison method to identify the samples corresponding to the forward peak and the reverse peak, and then combining the base clock and sample count provided by the control circuit to read the sampling time corresponding to the peak sample, i.e. the first time and the second time.

[0021] In this embodiment, the induced electromotive force is the electromotive force generated by the coil in the seismic detector cutting the magnetic field during the free oscillation of the inertial body. Its variation law is directly related to the motion state (displacement, velocity, etc.) of the inertial body and is the original signal for obtaining the time domain waveform.

[0022] In this embodiment, the positive excitation current is generated by the test current drive circuit. The magnitude of this current can be calculated using a specific formula based on parameters such as the mass, natural frequency, sensitivity, and maximum stroke of the seismic detector's inertial body. Its function is to drive the inertial body inside the seismic detector to move in the positive (upward) direction until it reaches its maximum displacement (blocking the spring plate). When the inertial body is at this extreme position, the positive excitation current is suddenly stopped, and the inertial body will oscillate freely around the new equilibrium position. During this process, the coil of the seismic detector will cut the magnetic field to generate an induced electromotive force. The induced electromotive force signal can be processed by the seismic detector's induced electromotive force acquisition circuit through input matching, amplitude amplification, uniform sampling, and digital filtering. The processed analog signal is converted into a digital signal and transmitted to the digital signal storage circuit for storage, forming a positive time-domain waveform. Subsequently, the processing circuit can compare the sample values ​​of the positive time-domain waveform, identify the sample with the largest amplitude (i.e., the positive peak value), and, combined with the base clock and sample count provided by the control circuit, read the sampling time corresponding to the peak sample (with the instant the current is stopped being the 0th moment). This moment is the first time. The reverse excitation current is also generated by the test current drive circuit. Its magnitude is calculated using the same logic as the forward excitation current, only with the opposite polarity. The purpose is to drive the inertial body to move in the opposite direction (downward) to its maximum displacement. Then, following the same procedure as the forward test, the corresponding second time is obtained.

[0023] This embodiment effectively eliminates system errors through two tests, one in the forward direction and one in the reverse direction, providing more accurate data support for subsequent calculations.

[0024] S102: Determine the maximum stroke of the inertial body based on the factory parameters of the seismic detector; the maximum stroke is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector.

[0025] In this embodiment, the factory parameters are technical parameters reflecting the inherent characteristics of the seismic detector, provided by the manufacturer at the time of production. These parameters include the inertial body mass, natural frequency, sensitivity, and maximum stroke. The inertial body is a core component located inside the seismic detector. It has a certain mass and can move under the action of an excitation current. When seismic waves act, it senses vibrations through inertia, and changes in its motion state are key to generating induced electromotive force. The maximum stroke is the maximum limit distance that the inertial body can move inside the seismic detector. It is an inherent parameter of the seismic detector and determines the boundary of the inertial body's range of motion.

[0026] In this embodiment, the maximum travel of the inertial body is an inherent parameter determined during the design and manufacturing process of the seismic detector. It represents the maximum limit distance that the inertial body can reach during motion, and this parameter is clearly marked in the seismic detector's factory technical specifications. Before testing, the operator can input relevant information such as the seismic detector's model through the operating panel of the testing instrument. The instrument can automatically retrieve or the operator can manually enter the maximum travel value from this factory parameter, which serves as important basic data for calculating the centrality offset and the burial tilt angle.

[0027] S103: Determine the centerness offset of the inertial body based on the first time, the second time, and the maximum travel of the inertial body.

[0028] In this embodiment, the center offset is the distance between the actual equilibrium position of the inertial body when the seismic detector is buried at an angle and the ideal center position set at the factory (the equilibrium position when buried vertically). It is a parameter reflecting the degree of burial tilt.

[0029] In this embodiment, the determination of the centerness offset is based on the first and second times obtained from forward and reverse tests, as well as the known maximum travel of the inertial body. First, according to the law that the time of the first peak voltage output of the inertial body oscillation is proportional to the extreme displacement, the first and second times are converted into forward and reverse extreme displacements, respectively. Since the equilibrium position of the inertial body will shift when the seismic detector is tilted, there will be a difference between the forward and reverse extreme displacements. The difference between the two is the basis for calculating the equilibrium position offset. Combined with the inertial body centerness reference value (center position when vertically buried) determined at the time of manufacture of the seismic detector, the centerness offset caused by the burial tilt is finally calculated.

[0030] S104: Determine the embedment tilt angle of the seismic detector based on the centrality offset and maximum travel.

[0031] In this embodiment, the burial tilt angle is the angle formed between the tail vertebra (free axis) and the gravity axis (perpendicular to the Earth's center) of the seismic detector after it is buried. It is a key indicator for measuring the burial effect of the seismic detector.

[0032] In this embodiment, the centrality offset and the burial tilt angle of the seismic detector have a specific functional relationship, which is established based on the principle of gravity decomposition. Knowing the centrality offset and the maximum travel of the inertial body, these two parameters are substituted into a preset mathematical formula. Where Q is the burial tilt angle, p is the matching coefficient, d is the centrality offset, and x is the maximum travel, the specific value of the burial tilt angle can be calculated. The matching coefficient p depends on the type of seismic detector and can be obtained by pre-calibrating a standard fixture with a known tilt angle to ensure the accuracy of the calculation results.

[0033] As can be seen from the above, this embodiment, by applying forward and reverse excitation currents and combining the time parameters corresponding to the peak values ​​of the time-domain waveform, eliminates the need for additional tilt sensors or complex mechanical measurements, thus avoiding the accuracy problems caused by installation deviations and vibration interference in traditional measurements. It derives the center offset based on the inherent factory parameters of the seismic detector and measured time data, then calculates the burial tilt angle by correlating it with the maximum stroke, utilizing the detector's own structural characteristics to achieve measurement, reducing errors caused by the external environment and additional components. Compared to traditional methods, this embodiment eliminates the need for extensive pre-modeling work, simplifies the testing process, improves field construction efficiency, accurately obtains the burial tilt angle of the seismic detector, balances measurement convenience and data reliability, and ensures the coupling effect and quality of the seismic detector from the source.

[0034] In one embodiment of this application, before applying a positive excitation current to the seismic detector, the method further includes: The inertial body mass, natural frequency, sensitivity, and maximum travel of the seismic detector are determined based on its factory parameters. The excitation current applied to the seismic detector is determined based on the inertial body's mass, natural frequency, sensitivity, and maximum travel. The excitation current is calculated using the first formula. The first formula is: ; in, This represents the excitation current applied to the seismic detector. Represents a constant , Indicates the mass of an inertial body. Represents natural frequency. This indicates the maximum travel of an inertial body. Indicates sensitivity.

[0035] In this embodiment, the factory parameters of the seismic detector can be obtained from the manufacturer's instruction manual or product nameplate. The instruction manual or nameplate will clearly indicate parameters such as the inertial body mass, natural frequency, sensitivity, and maximum travel of the inertial body. For example, a certain model of seismic detector has an inertial body mass *m* of 0.02 kg and a natural frequency... 10 Hz, sensitivity for Maximum travel 5×10 -3 Meters. In practical applications, these parameters need to be accurately obtained according to the specific seismic detector model used to ensure the correctness of the calculation results.

[0036] The obtained inertial mass m and natural frequency Sensitivity and maximum travel Substitute into the first formula for calculation; where the constant k is Its value remains constant. The calculation process can be automatically completed by the processing circuit of the testing instrument. The processing circuit executes the calculation according to the preset program logic to obtain the value of the excitation current I. For example, substituting the above parameters into the calculation: , , , , ,but That is, the excitation current applied to the seismic detector is determined to be 1.972A.

[0037] In this embodiment, the calculated excitation current is a theoretical value. In practical applications, it can be fine-tuned through the operation panel of the testing instrument according to the specific situation during the test. However, the fine-tuning range should not exceed ±5% of the theoretical value to ensure that the inertial body can reach the maximum displacement without damaging the seismic detector.

[0038] In this embodiment, based on the principle of electromagnetic induction seismic detectors, the displacement of the inertial body in its static state is proportional to the driving current. When the driving current is sufficiently large, the displacement of the inertial body reaches its extreme value. The first formula is derived based on the inherent parameters of the seismic detector, such as the inertial body's mass, natural frequency, sensitivity, and maximum stroke, and accurately reflects the current required for the inertial body to reach its maximum displacement. The excitation current calculated by this formula, when applied to the seismic detector, ensures that the inertial body moves precisely to its maximum displacement position, providing a guarantee for the subsequent accurate acquisition of time-domain waveforms and related time parameters.

[0039] As can be seen from the above, this embodiment can accurately determine the magnitude of the excitation current applied to the seismic detector, avoiding the impact of excessive or insufficient current on the test results. It ensures that the inertial body can reach its maximum displacement and protects the internal components of the seismic detector from damage, thereby improving the stability and reliability of the test process and laying a solid foundation for the accuracy of subsequent calculations.

[0040] In one embodiment of this application, determining the center offset of the inertial body based on a first time, a second time, and the maximum travel of the inertial body includes: The offset of the center point of the inertial body corresponding to the current buried tilt angle of the seismic detector is determined based on the first time, the second time, and the maximum travel of the inertial body. Based on the difference between the offset of the center point of the inertial body corresponding to the current embedment tilt angle and the offset of the reference center point, the centerness offset of the inertial body is determined. The reference center point offset is the offset of the center point of the inertial body when the seismic detector is buried at an inclination angle of 0°.

[0041] In this embodiment, the center point offset refers to the distance between the actual center position of the inertial body and the preset theoretical center position inside the seismic detector, which is a basic parameter reflecting the degree of positional offset of the inertial body.

[0042] The offset of the center point of the inertial body corresponding to the current burial tilt angle is the offset distance between the actual center position and the theoretical center position of the inertial body, calculated by the first time, the second time and the maximum travel when the seismic detector is in the actual burial state (with a specific tilt angle).

[0043] The reference center point offset is the distance between the center position of the inertial body and the theoretical center position when the seismic detector is vertically buried (with a burial tilt angle of 0°) and in ideal working condition. This parameter is a preset benchmark value used for comparison calculation with the actual offset. The seismic detector can be vertically placed on a perforated platform (test fixture) with a level, ensuring that its burial tilt angle is 0° and that it is in a stable and quiet coupling state. Following the same test procedure and calculation method as obtaining the center point offset of the inertial body corresponding to the current burial tilt angle, the center point offset of the inertial body at this time can be obtained, which is the reference center point offset.

[0044] In this embodiment, when the seismic detector is vertically buried (with a burial tilt angle of 0°), the center position of its inertial body is an ideal reference. When the seismic detector is tilted, the center position of the inertial body will shift. The offset of the center point of the inertial body corresponding to the current burial tilt angle includes both the ideal reference position and the offset caused by the tilt. By subtracting the offset of the reference center point, the influence of the ideal reference position can be eliminated, and only the center offset caused by the burial tilt can be retained, thus more accurately reflecting the burial tilt of the seismic detector.

[0045] As can be seen from the above, this embodiment effectively eliminates the influence of the ideal reference position on the calculation of the centrality offset by introducing the reference center point offset and calculating the difference, so that the obtained centrality offset can accurately reflect the actual offset caused by the tilt of the seismic detector burial, and improves the calculation accuracy of the centrality offset.

[0046] In one embodiment of this application, determining the offset of the center point of the inertial body corresponding to the current burial tilt angle of the seismic detector based on a first time, a second time, and the maximum travel of the inertial body includes: Based on the first time, the second time, and the maximum travel of the inertial body, the offset of the center point corresponding to the current burial tilt angle of the seismic detector is determined by the second formula. The second formula is: ; in, This indicates the offset of the center point of the inertial body corresponding to the current burial tilt angle of the seismic detector. Indicates that immediately, Indicates the second time. Indicates the maximum travel of an inertial body; Based on the difference between the offset of the center point corresponding to the current embedment tilt angle and the offset of the reference center point, the centerness offset of the inertial body is determined, including: The centrality offset of the inertial body is determined based on the third formula; The third formula is: ; in, This represents the centerness offset of an inertial body. This indicates the offset of the reference center point.

[0047] In this embodiment, the first time t1, the second time t2, and the maximum travel of the inertial body are obtained. Substitute into the second formula to perform the calculation.

[0048] For example, in a certain test, t1 = 100µs, t2 = 80µs. Meters, substituting into the second formula, the calculation yields... Meters, that is, the offset of the center point of the inertial body corresponding to the current buried tilt angle is approximately The formula is derived based on the principle that the time of the first peak voltage output of the inertial body oscillation is proportional to the extreme displacement, ensuring the scientific validity of the calculation results.

[0049] The result obtained through the second formula and the predetermined offset of the reference center point Substituting into the third formula, we can obtain the centrality offset d of the inertial body; for example, rice, =0.0028 meters, substituting into the third formula, we get The negative sign indicates that the offset direction is opposite to the preset positive direction, which does not affect the determination of the offset magnitude. That is, the absolute value of the center offset of the inertial body is approximately 0.0022 meters.

[0050] In this embodiment, the second formula establishes a mathematical relationship between the first time, the second time, the maximum travel, and the center point offset of the inertial body corresponding to the current burial tilt angle, based on the motion law of the inertial body and the proportional relationship between time and displacement. This formula can directly convert time parameters into displacement parameters. The third formula, through simple difference calculation, eliminates the influence of the reference center point offset, obtaining the center offset caused only by the burial tilt, providing accurate basic data for the subsequent calculation of the burial tilt angle.

[0051] As can be seen from the above, this embodiment clarifies the calculation formulas for the offset of the center point of the inertial body and the offset of the center degree of the inertial body corresponding to the current buried tilt angle, so that the calculation process has a unified standard and basis, avoids the calculation deviation caused by human factors, and improves the accuracy and reliability of the calculation results.

[0052] In one embodiment of this application, determining the burial tilt angle of the seismic detector based on the centrality offset and the maximum travel includes: Based on the centrality offset and maximum travel, the embedment tilt angle of the seismic detector is determined by the third formula. The fourth formula is: ; in, This indicates the burial tilt angle of the seismic detector. Represents the matching coefficient. Indicates the centrality offset. This indicates the maximum travel distance of the inertial body.

[0053] In this embodiment, the matching coefficient depends on the type of seismic detector. Different types of seismic detectors have different internal structures, material properties, etc., and therefore different matching coefficients. For seismic detectors of known types and with historical matching coefficients, historical data can be used directly. If there is no historical data, it is necessary to use test fixtures to measure the displacement of the inertial body equilibrium position at a known tilt angle.

[0054] In this embodiment, the calculated centrality offset d and the known maximum travel are used. Substituting the determined matching coefficient p into the fourth formula, first calculate the right side of the equation. The value is then taken as the square root of that value. The value of d is then used to calculate the value of Q, which is the burial tilt angle of the seismic detector, in degrees. For example, d = 0.0022 meters. Meters, p=1.00, substituting into the formula yields... , , That is, the buried tilt angle of the seismic detector is approximately .

[0055] In this embodiment, the fourth formula is based on the principle of gravity decomposition. When the seismic detector tilts, the force transmitted from the inertial body to the spring plate decreases due to gravity decomposition, causing a shift in the equilibrium position of the inertial body. The center offset is proportional to the square of the sine of the burial tilt angle. The matching coefficient p is used to correct for the influence of the characteristic differences of different types of seismic detectors on the calculation results, ensuring the universality and accuracy of the formula. This formula can convert the center offset and maximum stroke into specific burial tilt angle values, enabling quantitative testing.

[0056] As can be seen from the above, this embodiment can accurately calculate the burial tilt angle of the seismic detector using the fourth formula, achieving quantitative testing of the burial tilt angle. The introduction of the matching coefficient makes the formula applicable to different types of seismic detectors, improving the versatility and practicality of the method.

[0057] In one embodiment of this application, the process for determining the reference center point offset is as follows: Obtain the offset of the first center point of the inertial body when the buried tilt angle of the seismic detector is 0°; The offset of multiple second center points of the inertial body is obtained when the buried tilt angle of the seismic detector is a preset angle; the preset angle is a number of different specific buried tilt angles other than 0° that are set in advance during the test, and each preset angle corresponds to a second center point offset; For each second center point offset, calculate the difference between the second center point offset and the first center point offset to obtain multiple center point offset differences; The reference center point offset is determined based on the difference between the offsets of multiple center points.

[0058] In this embodiment, the first center point offset is obtained by placing the seismic detector vertically on the test fixture, ensuring that the burial tilt angle is 0°, and using the above calculation formula, obtaining the center point offset of the inertial body when the seismic detector is buried at a tilt angle of 0°, which is the first center point offset; during the test, it is necessary to ensure that the seismic detector is in a stable coupling state to avoid external interference affecting the test results.

[0059] In this embodiment, the preset angle refers to multiple different specific burial tilt angles pre-set during the test. Besides 0°, these angles can include 5°, 10°, 15°, 20°, 25°, 30°, etc., covering common tilt ranges that may occur in practical applications of seismic detectors. The preset angle is precisely set using an tilt adjustment device on the test fixture to ensure its accuracy.

[0060] In this embodiment, the acquisition of multiple second center point offsets is as follows: the seismic detector is placed on the test fixture with different preset angles. At each preset angle, the center point offset of the corresponding inertial body is obtained by the same calculation method as that used to acquire the first center point offset, which is the multiple second center point offsets. The number of tests at each preset angle is no less than 3, and the average value is taken as the second center point offset corresponding to the preset angle to reduce the influence of random errors.

[0061] In this embodiment, the center point offset difference is calculated as follows: for each second center point offset, the first center point offset is subtracted from it to obtain multiple center point offset differences. For example, if the first center point offset is 0.0028 meters and the second center point offset at a preset angle is 0.0035 meters, then the corresponding center point offset difference is 0.0035 - 0.0028 = 0.0007 meters.

[0062] In this embodiment, the reference center point offset is determined as follows: Statistical analysis is performed on the obtained center point offset differences. The maximum and minimum values ​​are removed, and the average of the remaining center point offset differences is calculated. This average value is used as the reference center point offset. For example, if the five center point offset differences are 0.0007 meters, 0.0008 meters, 0.0006 meters, 0.0009 meters, and 0.0007 meters, after removing 0.0006 meters and 0.0009 meters, (0.0007 + 0.0008 + 0.0007) / 3 = 0.00073 meters, meaning the reference center point offset is 0.00073 meters.

[0063] In this embodiment, by obtaining the first center point offset at a 0° embedment tilt angle and the second center point offset at multiple different preset angles, the difference between the two can be calculated to eliminate possible systematic errors at different angles. Averaging multiple differences can further reduce the influence of random errors, making the obtained reference center point offset closer to the true value, thus providing a reliable reference benchmark for the accurate calculation of subsequent center offset.

[0064] As can be seen from the above, this embodiment determines the reference center point offset through multiple tests and data statistical analysis, effectively reducing the impact of random and systematic errors and improving the accuracy and reliability of the reference center point offset. Based on this, the calculated center offset of the inertial body is more precise, thus ensuring the accuracy of the buried tilt angle test results.

[0065] In one embodiment of this application, the process for determining the matching coefficient is as follows: For each preset angle, based on the offset of the reference center point and the maximum travel of the inertial body, multiple initial matching coefficients are obtained through the fourth formula; The matching coefficient is determined based on multiple initial matching coefficients.

[0066] In this embodiment, the initial matching coefficient is obtained as follows: For each preset angle, the difference in center point offset at that angle (i.e., the difference between the second center point offset and the first center point offset corresponding to that preset angle) is used as the centrality offset d, combined with the known maximum travel of the inertial body. and the square of the sine of the preset angle Substitute into the fourth formula This leads to the derivation of the initial matching coefficient p corresponding to the preset angle. For example, if a preset angle Q = 10°, the corresponding center point offset difference d = 0.00074 meters. Meters, sin10°≈0.1736, Substituting into the formula, we can obtain The calculation yields p≈0.204, meaning the initial matching coefficient corresponding to this preset angle is approximately 0.204.

[0067] Determination of the matching coefficient: Statistical processing is performed on the multiple initial matching coefficients obtained under all preset angles. The maximum and minimum values ​​are removed, and the average of the remaining initial matching coefficients is calculated. This average value is used as the matching coefficient. For example, if five initial matching coefficients are obtained as 0.204, 0.206, 0.203, 0.205, and 0.207, after removing 0.203 and 0.207, the average of the remaining three values ​​is (0.204 + 0.206 + 0.205) / 3 = 0.205, thus the matching coefficient is determined to be 0.205.

[0068] In this embodiment, the test data at each preset angle reflects the relationship between the center offset and the burial tilt angle at that angle. The initial matching coefficient derived from the fourth formula is the optimal value at that angle. Since the initial matching coefficients at different preset angles may have slight differences, by averaging multiple initial matching coefficients, the test information at each angle can be integrated to obtain a universal matching coefficient applicable to this type of seismic detector, ensuring that the burial tilt angle can be accurately calculated at different burial tilt angles.

[0069] As can be seen from the above, this embodiment determines the matching coefficient through test data at multiple preset angles, making full use of test information at different angles and improving the accuracy and versatility of the matching coefficient. Substituting this matching coefficient into the fourth formula to calculate the embedding tilt angle can effectively reduce calculation errors caused by inaccurate matching coefficients.

[0070] Based on the same inventive concept, this application also provides a seismic detector burial tilt measuring device for implementing the above-described seismic detector burial tilt measuring method. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of one or more seismic detector burial tilt measuring device embodiments provided below can be found in the limitations of the seismic detector burial tilt measuring method described above, and will not be repeated here.

[0071] This application provides a seismic detector burial tilt measurement device, such as... Figure 3 As shown, the seismic detector buried tilt angle measurement device 20 includes: an acquisition module 21, a stroke acquisition module 22, a centrality offset calculation module 23, and a tilt angle calculation module 24; The acquisition module 21 is used to apply a positive excitation current to the seismic detector, acquire the positive time-domain waveform of the seismic detector based on the excitation current, and acquire the first time corresponding to the positive peak value based on the positive time-domain waveform; apply a reverse excitation current to the seismic detector, acquire the reverse time-domain waveform of the seismic detector based on the excitation current, and acquire the second time corresponding to the reverse peak value based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector; The travel acquisition module 22 is used to determine the maximum travel of the inertial body based on the factory parameters of the seismic detector; the maximum travel is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector; The centerness offset calculation module 23 is used to determine the centerness offset of the inertial body based on the first time, the second time, and the maximum travel of the inertial body. The tilt angle calculation module 24 is used to determine the buried tilt angle of the seismic detector based on the centrality offset and the maximum stroke.

[0072] In one embodiment of this application, before applying a positive excitation current to the seismic detector, the method further includes: an excitation current calculation module, specifically used for: The inertial body mass, natural frequency, sensitivity, and maximum travel of the seismic detector are determined based on its factory parameters. The excitation current applied to the seismic detector is determined based on the inertial body's mass, natural frequency, sensitivity, and maximum travel. The excitation current is calculated using the first formula. The first formula is: ; in, This represents the excitation current applied to the seismic detector. Represents a constant , Indicates the mass of an inertial body. Represents natural frequency. This indicates the maximum travel of an inertial body. Indicates sensitivity.

[0073] In one embodiment of this application, the centrality offset calculation module 23 is specifically used for: The offset of the center point of the inertial body corresponding to the current buried tilt angle of the seismic detector is determined based on the first time, the second time, and the maximum travel of the inertial body. Based on the difference between the offset of the center point of the inertial body corresponding to the current embedment tilt angle and the offset of the reference center point, the centerness offset of the inertial body is determined. The reference center point offset is the offset of the center point of the inertial body when the seismic detector is buried at an inclination angle of 0°.

[0074] In one embodiment of this application, the centrality offset calculation module 23 is further used for: Based on the first time, the second time, and the maximum travel of the inertial body, the offset of the center point corresponding to the current burial tilt angle of the seismic detector is determined by the second formula. The second formula is: ; in, This indicates the offset of the center point of the inertial body corresponding to the current burial tilt angle of the seismic detector. Indicates that immediately, Indicates the second time. Indicates the maximum travel of an inertial body; The centrality offset of the inertial body is determined based on the third formula; The third formula is: ; in, This represents the centerness offset of an inertial body. This indicates the offset of the reference center point.

[0075] In one embodiment of this application, the tilt angle calculation module 24 is specifically used for: Based on the centrality offset and maximum travel, the embedment tilt angle of the seismic detector is determined by the third formula. The fourth formula is: ; in, This indicates the burial tilt angle of the seismic detector. Represents the matching coefficient. Indicates the centrality offset. This indicates the maximum travel distance of the inertial body.

[0076] In one embodiment of this application, the process for determining the reference center point offset is as follows: Obtain the offset of the first center point of the inertial body when the buried tilt angle of the seismic detector is 0°; The offset of multiple second center points of the inertial body is obtained when the buried tilt angle of the seismic detector is a preset angle; the preset angle is a number of different specific buried tilt angles other than 0° that are set in advance during the test, and each preset angle corresponds to a second center point offset; For each second center point offset, calculate the difference between the second center point offset and the first center point offset to obtain multiple center point offset differences; The reference center point offset is determined based on the difference between the offsets of multiple center points.

[0077] In one embodiment of this application, the process for determining the matching coefficient is as follows: For each preset angle, based on the offset of the reference center point and the maximum travel of the inertial body, multiple initial matching coefficients are obtained through the fourth formula; The matching coefficient is determined based on multiple initial matching coefficients.

[0078] See Figure 4 , Figure 4 This is a schematic block diagram of an electronic device provided according to an embodiment of this application. Figure 4 The electronic device 300 in this embodiment may include one or more processors 301, one or more input devices 302, one or more output devices 303, and one or more memories 304. The processors 301, input devices 302, output devices 303, and memories 304 communicate with each other via a communication bus 305. The memories 304 store computer programs, including program instructions. The processors 301 execute the program instructions stored in the memories 304. Specifically, the processors 301 are configured to invoke the program instructions to perform the functions of the modules in the aforementioned device embodiments, for example... Figure 3 The functions of the acquisition module 21, travel acquisition module 22, center offset calculation module 23, and tilt angle calculation module 24 are shown.

[0079] It should be understood that, in the embodiments of this application, the processor 301 may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0080] Input device 302 may include a touchpad, a fingerprint sensor (for collecting the user's fingerprint information and fingerprint orientation information), a microphone, etc., and output device 303 may include a display (LCD, etc.), a speaker, etc.

[0081] The memory 304 may include read-only memory and random access memory, and provides instructions and data to the processor 301. A portion of the memory 304 may also include non-volatile random access memory. For example, the memory 304 may also store information such as time-domain waveforms and embedment tilt angles.

[0082] In specific implementations, the processor 301, input device 302, and output device 303 described in the embodiments of this application can execute the implementation method described in the seismic detector burial tilt angle measurement method provided in the embodiments of this application, or they can execute the implementation method of the electronic device described in the embodiments of this application, which will not be repeated here.

[0083] In another embodiment of this application, a computer-readable storage medium is provided. This computer-readable storage medium stores a computer program, which includes program instructions. When executed by a processor, the program instructions implement all or part of the processes in the methods described above. Alternatively, the computer program can instruct related hardware to complete the process. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include any entity or device capable of carrying computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0084] The computer-readable storage medium can be an internal storage unit of the electronic device in any of the foregoing embodiments, such as a hard disk or memory of the electronic device. The computer-readable storage medium can also be an external storage device of the electronic device, such as a plug-in hard disk, smart media card (SMC), secure digital card (SD), flash card, etc., provided on the electronic device. Furthermore, the computer-readable storage medium can include both internal and external storage units of the electronic device. The computer-readable storage medium is used to store computer programs and other programs and data required by the electronic device. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0085] Those skilled in the art will recognize that the modules / units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0086] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the electronic devices and units described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0087] In the several embodiments provided in this application, it should be understood that the disclosed electronic devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of modules / units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules, units, or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces or modules / units, or it may be an electrical, mechanical, or other form of connection.

[0088] The modules / units described as separate components may or may not be physically separate. Similarly, the components shown as modules / units may or may not be physical modules / units; they may be located in one place or distributed across multiple network modules / units. Some or all of the modules / units can be selected to achieve the purpose of the embodiments of this application, depending on actual needs.

[0089] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing unit, or each module can exist physically separately, or two or more modules can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0090] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for measuring the burial tilt angle of a seismic detector, characterized in that, include: A positive excitation current is applied to the seismic detector, and the positive time-domain waveform of the seismic detector is obtained based on the excitation current. The first time corresponding to the positive peak value is obtained based on the positive time-domain waveform. A reverse excitation current is applied to the seismic detector, and the reverse time-domain waveform of the seismic detector is obtained based on the excitation current. The second time corresponding to the reverse peak value is obtained based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector; The maximum stroke of the inertial body is determined based on the factory parameters of the seismic detector; the maximum stroke is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector. Based on the first time, the second time, and the maximum travel of the inertial body, determine the center degree offset of the inertial body; The embedment tilt angle of the seismic detector is determined based on the centrality offset and the maximum travel.

2. The method for measuring the burial tilt angle of a seismic detector as described in claim 1, characterized in that, Before applying a positive excitation current to the seismic detector, the method further includes: The inertial body mass, natural frequency, sensitivity, and maximum travel of the seismic detector are determined based on its factory parameters. The excitation current applied to the seismic detector is determined based on the mass of the inertial body, the natural frequency, the sensitivity, and the maximum travel of the inertial body. The excitation current is calculated using the first formula; The first formula is: ； in, This indicates the excitation current applied to the seismic detector. Represents a constant , Indicates the mass of an inertial body. Represents natural frequency. This indicates the maximum travel of an inertial body. Indicates sensitivity.

3. The method for measuring the burial tilt angle of a seismic detector as described in claim 1, characterized in that, Determining the center offset of the inertial body based on the first time, the second time, and the maximum travel of the inertial body includes: Based on the first time, the second time, and the maximum travel of the inertial body, determine the current burial tilt angle of the seismic detector and the corresponding offset of the center point of the inertial body; Based on the difference between the offset of the center point of the inertial body corresponding to the current embedment tilt angle and the offset of the reference center point, the centerness offset of the inertial body is determined. The reference center point offset is the offset of the center point of the inertial body when the burial tilt angle of the seismic detector is 0°.

4. The method for measuring the burial tilt angle of a seismic detector as described in claim 3, characterized in that, The determination of the offset of the center point of the inertial body corresponding to the current burial tilt angle of the seismic detector based on the first time, the second time, and the maximum travel of the inertial body includes: Based on the first time, the second time, and the maximum travel of the inertial body, the offset of the center point corresponding to the current burial tilt angle of the seismic detector is determined by the second formula; The second formula is: ； in, This indicates the offset of the center point of the inertial body corresponding to the current burial tilt angle of the seismic detector. Indicates that immediately, Indicates the second time. Indicates the maximum travel of an inertial body; The determination of the centrality offset of the inertial body based on the difference between the center point offset corresponding to the current embedment tilt angle and the reference center point offset includes: The centrality offset of the inertial body is determined based on the third formula; The third formula is: ； in, This represents the centerness offset of an inertial body. This indicates the offset of the reference center point.

5. The method for measuring the burial tilt angle of a seismic detector as described in claim 4, characterized in that, Determining the burial tilt angle of the seismic detector based on the centrality offset and the maximum travel includes: Based on the centrality offset and the maximum travel, the embedment tilt angle of the seismic detector is determined by the third formula. The fourth formula is: ； in, This indicates the burial tilt angle of the seismic detector. Represents the matching coefficient. Indicates the centrality offset. This indicates the maximum travel distance of the inertial body.

6. The method for measuring the burial tilt angle of a seismic detector as described in claim 5, characterized in that, The process for determining the offset of the reference center point is as follows: Obtain the offset of the first center point of the inertial body when the burial tilt angle of the seismic detector is 0°; The offset of multiple second center points of the inertial body is obtained when the buried tilt angle of the seismic detector is a preset angle; the preset angle is a number of different specific buried tilt angles other than 0° that are pre-set during the test, and each preset angle corresponds to a second center point offset; For each second center point offset, calculate the difference between the second center point offset and the first center point offset to obtain multiple center point offset differences; The reference center point offset is determined based on the difference in offsets between the multiple center points.

7. The method for measuring the burial tilt angle of a seismic detector as described in claim 6, characterized in that, The process for determining the matching coefficient is as follows: For each preset angle, based on the offset of the reference center point and the maximum travel of the inertial body, and through the fourth formula, multiple initial matching coefficients are obtained; The matching coefficients are determined based on the multiple initial matching coefficients.

8. A device for measuring the inclination angle of a buried seismic detector, characterized in that, include: The acquisition module is used to apply a positive excitation current to the seismic detector, acquire the positive time-domain waveform of the seismic detector based on the excitation current, and acquire the first time corresponding to the positive peak value based on the positive time-domain waveform. A reverse excitation current is applied to the seismic detector, and the reverse time-domain waveform of the seismic detector is obtained based on the excitation current. The second time corresponding to the reverse peak value is obtained based on the reverse time-domain waveform. Among them, the time-domain waveform is the waveform corresponding to the induced electromotive force generated by the seismic detector; The travel acquisition module is used to determine the maximum travel of the inertial body based on the factory parameters of the seismic detector; the maximum travel is the maximum limit distance that the inertial body can reach, and the inertial body is installed in the seismic detector; The centerness offset calculation module is used to determine the centerness offset of the inertial body based on the first time, the second time, and the maximum travel of the inertial body. The tilt angle calculation module is used to determine the burial tilt angle of the seismic detector based on the centrality offset and the maximum stroke.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 7.

Images