Vibration sensor detection method and device

Abstract

The disclosed embodiment discloses a vibration sensor detection method and device, wherein the method comprises: obtaining a vibration actuator to control vibration according to a preset vibration frequency; driving the vibration sensor to be tested to vibrate through the vibration actuator; wherein the vibration sensor to be tested is placed on a vibration platform connected to the vibration actuator; collecting the measured vibration frequency of the vibration sensor to be tested; and determining the performance of the vibration sensor to be tested based on the measured vibration frequency and the preset vibration frequency. The present embodiment can be used for detection, maintenance and parameter calibration of vibration sensors, and is a special test and analysis method in the industry, which solves the problem of no special detection and calibration equipment for maintenance and repair of vibration sensors. The method has the characteristics of small size, high precision, simple operation, and convenient use, and can be used in a variety of scenarios such as on-site and laboratory.

Description

Technical Field

[0001] The present disclosure relates to the technical field of sensor performance testing, and in particular to a vibration sensor detection method and device. Background Art

[0002] The vibration sensor is one of the key components in testing technology. Its main function is to receive mechanical quantities and convert them into proportional electrical quantities. Since it is also an electromechanical conversion device, we sometimes call it a transducer, a vibration pickup, etc.

[0003] The vibration sensor does not directly convert the original mechanical quantity to be measured into electrical quantity, but takes the original mechanical quantity to be measured as the input quantity of the vibration sensor, which is then received by the mechanical receiving part to form another mechanical quantity suitable for conversion, and finally converted into electrical quantity by the electromechanical conversion part. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure is proposed. The embodiments of the present disclosure provide a vibration sensor detection method and device.

[0005] According to one aspect of an embodiment of the present disclosure, a vibration sensor detection method is provided, including:

[0006] Controlling the vibration of the actuator according to a preset vibration frequency;

[0007] The vibration sensor to be measured is driven to vibrate by the vibrator; wherein the vibration sensor to be measured is placed on a vibration platform connected to the vibrator;

[0008] Collecting the measured vibration frequency of the measured vibration sensor;

[0009] Based on the measured vibration frequency and the preset vibration frequency, the performance of the measured vibration sensor is determined.

[0010] Optionally, controlling the vibration of the actuator according to a preset vibration frequency includes:

[0011] Generating the preset vibration frequency by a frequency waveform generator;

[0012] The actuator is controlled to vibrate according to the preset vibration frequency.

[0013] Optionally, collecting the measured vibration frequency of the measured vibration sensor includes:

[0014] Obtaining a vibration signal of the vibration sensor under test through an external measuring wire connected to the vibration sensor under test; wherein the vibration signal represents a signal obtained by measuring the vibration of the vibration platform through the vibration sensor under test;

[0015] The vibration signal is digitally converted by a waveform decoder to obtain the measured vibration frequency.

[0016] Optionally, determining the performance of the measured vibration sensor based on the measured vibration frequency and the preset vibration frequency includes:

[0017] determining a measured vibration waveform based on the measured vibration frequency;

[0018] Restoring a preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency;

[0019] Based on the difference between the measured vibration waveform and the preset vibration waveform, the performance of the measured vibration sensor is determined.

[0020] Optionally, the vibration starter is arranged on a rotating bracket;

[0021] The step of driving the vibration sensor to be measured to vibrate by the oscillator comprises:

[0022] In response to the vibration sensor being measured being a vertical vibration sensor, adjusting the rotating bracket so that the oscillator is arranged vertically;

[0023] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the vertical direction by the vibration of the vibrator in the vertical direction; wherein the vibration platform is arranged horizontally;

[0024] In response to the vibration sensor being measured being a horizontal vibration sensor, adjusting the rotating bracket so that the vibrator is arranged horizontally;

[0025] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the horizontal direction by the vibration of the vibrator in the horizontal direction; wherein the vibration platform is arranged vertically;

[0026] In response to the vibration sensor being measured being another vibration sensor, adjusting the rotating bracket so that the vibrator is set at a corresponding set angle of the other vibration sensor;

[0027] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the set angle direction by the vibration of the vibrator in the set angle direction.

[0028] Optionally, the vibration platform includes a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is provided on the back side of the vibration platform.

[0029] Optionally, it also includes:

[0030] Obtaining, by means of the distance meter, a change in the distance between the vibrator and the vibration platform when collecting the measured vibration frequency;

[0031] The vibration waveform corresponding to the measured vibration frequency is adjusted based on the distance change to obtain an adjusted measured vibration frequency.

[0032] Optionally, the vibration platform is connected to the vibrator via a transmission rod.

[0033] According to another aspect of an embodiment of the present disclosure, there is provided a vibration sensor detection device, comprising:

[0034] A vibration module, used for controlling the vibration of the actuator according to a preset vibration frequency;

[0035] The resonance module is used to drive the vibration sensor to be measured to vibrate through the vibrator; wherein the vibration sensor to be measured is placed on a vibration platform connected to the vibrator;

[0036] A data acquisition module, used for acquiring the measured vibration frequency of the measured vibration sensor;

[0037] The performance analysis module is used to determine the performance of the vibration sensor under test based on the measured vibration frequency and the preset vibration frequency.

[0038] Optionally, the device further comprises: a waveform encoder for converting a preset vibration frequency into an analog voltage;

[0039] The actuator includes a micromechanical spring system and a frequency motor;

[0040] The frequency motor is used to generate vibration according to the driving of the analog voltage;

[0041] The micromechanical spring system is arranged at the upper end of the frequency motor, and is used to vibrate according to the drive of the frequency motor to achieve reciprocating periodic vibration.

[0042] Optionally, it also includes:

[0043] An external measuring wire, used to connect to the vibration sensor to be measured and obtain a vibration signal of the vibration sensor to be measured; wherein the vibration signal represents a signal obtained by measuring the vibration of the vibration platform through the vibration sensor to be measured;

[0044] The vibration signal is digitally converted by the waveform decoder to obtain the measured vibration frequency.

[0045] Optionally, it also includes:

[0046] A frequency waveform generator is used to generate the preset vibration frequency.

[0047] Optionally, the performance analysis module is specifically used to determine the measured vibration waveform based on the measured vibration frequency; restore the preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency; and determine the performance of the measured vibration sensor based on the difference between the measured vibration waveform and the preset vibration waveform.

[0048] Optionally, it also includes:

[0049] The rotating bracket is used to place the vibrator and adjust the placement direction of the vibrator and the vibration platform according to the type of the vibration sensor to be tested.

[0050] Optionally, the vibration platform includes a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is provided on the back side of the vibration platform;

[0051] The rangefinder is used to obtain the change in distance between the vibrator and the vibration platform when collecting the measured vibration frequency; and to adjust the vibration waveform corresponding to the measured vibration frequency based on the distance change to obtain the adjusted measured vibration frequency.

[0052] Optionally, the vibration platform is connected to the vibrator via a transmission rod.

[0053] A vibration sensor detection method and device provided based on the above-mentioned embodiment of the present disclosure obtains the vibration of an actuator controlled according to a preset vibration frequency; the vibration of the vibration sensor under test is driven to vibrate by the actuator; wherein the vibration sensor under test is placed on a vibration platform connected to the actuator; the measured vibration frequency of the vibration sensor under test is collected; based on the measured vibration frequency and the preset vibration frequency, the performance of the vibration sensor under test is determined; this embodiment can be used for the detection, maintenance and parameter calibration of vibration sensors, and is a special test and analysis method in the industry, which solves the problem of no special detection and calibration equipment for the maintenance and repair of vibration sensors; it has the characteristics of small size, high precision, simple operation, and easy use, and can be used in various scenarios such as on-site and laboratory.

[0054] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The above and other purposes, features and advantages of the present disclosure will become more apparent by describing the embodiments of the present disclosure in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the drawings, the same reference numerals generally represent the same components or steps.

[0056] Figure 1 It is a flowchart of a vibration sensor detection method provided by an exemplary embodiment of the present disclosure.

[0057] Figure 2 This disclosure Figure 1 A schematic flow chart of step 106 in the illustrated embodiment.

[0058] Figure 3 It is a structural schematic diagram of a vibration sensor detection device provided by an exemplary embodiment of the present disclosure.

[0059] Figure 4 It is a structural schematic diagram of a vibration sensor detection device provided by another exemplary embodiment of the present disclosure.

[0060] Figure 5a It is a left side view of a stationary state of a rotating bracket in a vibration sensor detection device provided by an exemplary embodiment of the present disclosure.

[0061] Figure 5b It is a left side view of another static state of the rotating bracket in the vibration sensor detection device provided by an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0062] Below, the exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited to the exemplary embodiments described here.

[0063] It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0064] Those skilled in the art can understand that the terms "first" and "second" in the embodiments of the present disclosure are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning nor indicate the necessary logical order between them.

[0065] It should also be understood that in the embodiments of the present disclosure, “plurality” may refer to two or more than two, and “at least one” may refer to one, two, or more than two.

[0066] It should also be understood that any component, data or structure mentioned in the embodiments of the present disclosure can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0067] In addition, the term "and / or" in the present disclosure is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present disclosure generally indicates that the associated objects before and after are in an "or" relationship.

[0068] It should also be understood that the description of the various embodiments in the present disclosure focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0069] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0070] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0071] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0072] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0073] The disclosed embodiments can be applied to electronic devices such as terminal devices, computer systems, servers, etc., which can operate with many other general or special computing system environments or configurations. Examples of well-known terminal devices, computing systems, environments and / or configurations suitable for use with electronic devices such as terminal devices, computer systems, servers, etc. include, but are not limited to: personal computer systems, server computer systems, thin clients, thick clients, handheld or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, small computer systems, large computer systems, and distributed cloud computing technology environments including any of the above systems, etc.

[0074] Electronic devices such as terminal devices, computer systems, servers, etc. can be described in the general context of computer system executable instructions (such as program modules) executed by computer systems. Generally, program modules can include routines, programs, object programs, components, logic, data structures, etc., which perform specific tasks or implement specific abstract data types. Computer systems / servers can be implemented in distributed cloud computing environments, where tasks are performed by remote processing devices linked through a communication network. In a distributed cloud computing environment, program modules can be located on local or remote computing system storage media including storage devices.

[0075] Exemplary Methods

[0076] Figure 1 FIG. 1 is a flow chart of a vibration sensor detection method provided by an exemplary embodiment of the present disclosure. This embodiment can be applied to electronic devices, such as Figure 1 As shown, the following steps are included:

[0077] Step 102: Controlling the vibration of the actuator according to a preset vibration frequency.

[0078] Optionally, the preset vibration frequency may be any frequency in the range of 0.03 to 20 MHz, and may correspond to a standard sinusoidal signal or a square wave signal.

[0079] Step 104: driving the vibration sensor to be measured to vibrate by means of a vibrator.

[0080] The vibration sensor to be measured is placed on a vibration platform connected to a vibrator.

[0081] In this embodiment, the precise vibration generated by the oscillator is transmitted to the vibration platform, and the vibration sensor to be detected is placed on the vibration platform, and resonance at the same frequency is started, and the current vibration frequency is collected by the vibration sensor to be detected.

[0082] Step 106, collecting the measured vibration frequency of the measured vibration sensor.

[0083] Optionally, the measured vibration frequency of the measured vibration sensor may be collected in a wired or wireless manner.

[0084] Step 108: determining the performance of the vibration sensor under test based on the measured vibration frequency and the preset vibration frequency.

[0085] In one embodiment, since the measured vibration frequency is obtained by measuring the measured vibration sensor under the drive of the actuator based on the preset vibration frequency, under the ideal state when the measured vibration sensor has good performance, the measured vibration frequency and the preset vibration frequency should be the same or very close. Therefore, this embodiment determines the performance of the measured vibration sensor by comparing the difference between the measured vibration frequency and the preset vibration frequency.

[0086] The above-mentioned embodiment of the present disclosure provides a vibration sensor detection method, which obtains the vibration of an actuator controlled according to a preset vibration frequency; drives the vibration sensor to be tested to vibrate through the actuator; wherein the vibration sensor to be tested is placed on a vibration platform connected to the actuator; collects the measured vibration frequency of the vibration sensor to be tested; and determines the performance of the vibration sensor to be tested based on the measured vibration frequency and the preset vibration frequency; this embodiment can be used for the detection, maintenance and parameter calibration of vibration sensors, and is a special test and analysis method in the industry, which solves the problem of no special detection and calibration equipment for the maintenance and repair of vibration sensors; it has the characteristics of small size, high precision, simple operation, and easy use, and can be used in various scenarios such as on-site and laboratory.

[0087] In some optional embodiments, in the above Figure 1 Based on the illustrated embodiment, step 102 may include:

[0088] Generate a preset vibration frequency through a frequency waveform generator;

[0089] The actuator is controlled to vibrate according to a preset vibration frequency.

[0090] In this embodiment, the frequency waveform generator can generate standard sine signals and square wave signals of 0.03 to 20 MHz; optionally, a host computer may also be included. The amplitude of the vibration output by the frequency waveform generator can be set and displayed by the host computer software and transmitted to the oscillator. The frequency waveform generator is a standard signal generator. The signal generated is mainly used to test the frequency and amplitude characteristics of the vibration sensor under test, and to accurately calibrate the frequency range, natural frequency and amplitude of the vibration sensor under test.

[0091] like Figure 2 As shown in the above Figure 1 Based on the illustrated embodiment, step 106 may include the following steps:

[0092] Step 1061: obtaining a vibration signal of the vibration sensor under test through an external measurement wire connected to the vibration sensor under test.

[0093] The vibration signal refers to a signal obtained by measuring the vibration of the vibration platform through the vibration sensor under test.

[0094] Optionally, in a method of acquiring a vibration signal by wire, the positive and negative electrodes of an external measuring wire are connected to the output end of the vibration sensor to be measured, and the obtained vibration signal is transmitted to a waveform decoder.

[0095] Step 1062, digitally convert the vibration signal through a waveform decoder to obtain the measured vibration frequency.

[0096] In this embodiment, a signal input interface is separately designed on the waveform decoder, and the input interface is connected to the output end of the external measuring wire to collect and digitally convert the vibration signal collected by the vibration sensor under test, which can be separately transmitted to the host computer for waveform display to determine the performance of the vibration sensor under test and its ability to collect data.

[0097] In some optional embodiments, in the above Figure 1 Based on the illustrated embodiment, step 108 may include:

[0098] determining a measured vibration waveform based on the measured vibration frequency;

[0099] Restoring a preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency;

[0100] Based on the difference between the measured vibration waveform and the preset vibration waveform, the performance of the vibration sensor under test is determined.

[0101] In this embodiment, while collecting the measured vibration frequency, the amplitude corresponding to the measured vibration frequency can also be obtained, and the measured vibration waveform can be determined based on the frequency and amplitude; because the preset vibration frequency is generated by a frequency waveform generator, there is a corresponding amplitude when the preset vibration frequency is generated, and the corresponding preset vibration waveform can be obtained. This embodiment achieves more intuitive and rapid accurate calibration and detection of the measured vibration sensor by comparing the differences between the waveforms.

[0102] In some optional embodiments, in the above Figure 1 Based on the embodiment shown, the oscillator is arranged on the rotating bracket; in this case, step 104 may include:

[0103] In response to the vibration sensor being tested being a vertical vibration sensor, adjusting the rotating bracket so that the oscillator is arranged vertically;

[0104] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the vertical direction by the vibrator vibrating in the vertical direction; wherein the vibration platform is arranged horizontally;

[0105] In response to the vibration sensor being tested being a horizontal vibration sensor, adjusting the rotating bracket so that the vibrator is arranged horizontally;

[0106] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the horizontal direction by the vibrator vibrating in the horizontal direction; wherein the vibration platform is arranged vertically;

[0107] In response to the vibration sensor being tested being another vibration sensor, adjusting the rotating bracket so that the vibrator is set at a corresponding set angle of the other vibration sensor;

[0108] The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the set angle direction by the vibrator vibrating in the set angle direction.

[0109] There are two types of commonly used vibration sensors: one is a vertical vibration sensor for detecting the vertical direction; the other is a horizontal vibration sensor for detecting the horizontal direction. In order to achieve universal detection and calibration of the resonance test platform, the present embodiment designs a rotatable and fixed oscillator bracket, which can be rotated at any angle, so that it can not only meet the rotation adjustment in the horizontal and vertical directions, but also can perform 45-degree angle test and calibration on the newly emerging rotating detectors in recent years, so that the vibration sensor detection method provided by the present embodiment has no blind spots in the test, and can detect and calibrate the sensors of existing seismic exploration equipment and wave picking instruments.

[0110] Optionally, the vibration platform includes a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is provided on the back side of the vibration platform.

[0111] Since the vibration platform is connected to the vibrator through the transmission rod, the rangefinder and the transmission rod are arranged on the same side of the vibration platform. Optionally, the rangefinder can be an infrared rangefinder, an infrared laser sensor, etc.

[0112] In some optional embodiments, the method provided in the above embodiment may further include:

[0113] The distance change between the vibrator and the vibration platform when collecting the measured vibration frequency is obtained by the distance meter;

[0114] The vibration waveform corresponding to the measured vibration frequency is adjusted based on the distance change to obtain the adjusted measured vibration frequency.

[0115] In order to more accurately test the influence of the mass of the vibration sensor under test on the actuator, the present embodiment uses a rangefinder to record and collect the displacement change between the vibration platform and the actuator during the process of measuring the vibration frequency, and performs a corrected test estimate; optionally, the rangefinder calibrates the stability of the vibration distance. When the vibration sensor under test presses the vibration platform heavily, the spring deformation and amplitude will be reduced. The rangefinder can monitor and correct the vibration waveform in real time, so as to obtain a more accurate resonance comparison waveform and accurately test and calibrate the vibration sensor under test.

[0116] Optionally, the vibration sensor to be measured is fixed on the front side of the vibration platform by means of adsorption, binding, fixing holes, etc.

[0117] Optionally, the wave pickup instrument with magnetic steel can be directly adsorbed on the metal table top of the vibration platform. The wave pickup instruments of other materials and principles can be fixed on the vibration table top with straps. There are fixing holes of different sizes on the table top, which can fully meet the needs of fixing the wave pickup sensors of most existing earthquake detection equipment.

[0118] Any vibration sensor detection method provided in the embodiments of the present disclosure may be executed by any appropriate device with data processing capabilities, including but not limited to: a terminal device and a server, etc. Alternatively, any vibration sensor detection method provided in the embodiments of the present disclosure may be executed by a processor, such as the processor executing any vibration sensor detection method mentioned in the embodiments of the present disclosure by calling corresponding instructions stored in a memory. This will not be described in detail below.

[0119] Exemplary Devices

[0120] Figure 3 Schematic diagram of the structure of a vibration sensor detection device provided by an exemplary embodiment of the present disclosure. Figure 3 As shown, the device provided in this embodiment includes:

[0121] The vibration module 31 is used to control the vibration of the actuator according to a preset vibration frequency.

[0122] The resonance module 32 is used to drive the vibration sensor to vibrate through the oscillator.

[0123] The vibration sensor to be measured is placed on a vibration platform connected to a vibrator.

[0124] The data acquisition module 33 is used to acquire the measured vibration frequency of the measured vibration sensor.

[0125] The data acquisition module 34 is used to determine the performance of the vibration sensor under test based on the measured vibration frequency and the preset vibration frequency.

[0126] The above-mentioned embodiment of the present disclosure provides a vibration sensor detection device, which obtains the vibration of an actuator controlled according to a preset vibration frequency; drives the vibration sensor to be tested to vibrate through the actuator; wherein the vibration sensor to be tested is placed on a vibration platform connected to the actuator; collects the measured vibration frequency of the vibration sensor to be tested; and determines the performance of the vibration sensor to be tested based on the measured vibration frequency and the preset vibration frequency; this embodiment can be used for the detection, maintenance and parameter calibration of vibration sensors, and is a special test and analysis method in the industry, which solves the problem of no special detection and calibration equipment for the maintenance and repair of vibration sensors; it has the characteristics of small size, high precision, simple operation, and easy use, and can be used in various scenarios such as on-site and laboratory.

[0127] In some optional embodiments, the device provided in this embodiment further includes a waveform encoder for converting a preset vibration frequency into an analog voltage.

[0128] In this embodiment, the waveform encoder converts the digital signal into an analog voltage, outputs a driving frequency motor vibration, and brings the high-precision micromechanical spring system at the upper end of the motor to vibrate, thereby achieving reciprocating periodic vibrations of different waveforms and frequencies.

[0129] Optionally, the oscillator comprises:

[0130] A frequency motor for generating vibrations according to the drive of an analog voltage;

[0131] The micro-mechanical spring system is arranged at the upper end of the frequency motor and is used for vibrating according to the driving of the frequency motor to realize reciprocating periodic vibration.

[0132] The oscillator in this embodiment is composed of a micro-mechanical spring system, a frequency motor and a waveform decoder. The frequency waveform data is input through the hardware circuit interface; the micro-mechanical spring system has a load-bearing range of 5kg, so the weight of the vibration sensor to be measured in this embodiment is limited to no more than 5kg; the waveform decoder can recognize digital signals and feedback vibration information to correct the vibration frequency.

[0133] Optionally, the device provided in this embodiment may further include:

[0134] An external measuring wire is used to connect to the vibration sensor to be measured and obtain a vibration signal of the vibration sensor to be measured; wherein the vibration signal represents a signal obtained by measuring the vibration of the vibration platform through the vibration sensor to be measured;

[0135] The vibration signal is digitally converted through a waveform decoder to obtain the measured vibration frequency.

[0136] Optionally, the signal input end of the external measuring wire includes a positive electrode and a negative electrode, which are connected to the signal output end of the vibration sensor under test through the positive electrode and the negative electrode, and the measured vibration frequency collected by the vibration sensor under test is transmitted to the waveform decoder, wherein the waveform decoder is encapsulated in the hardware circuit integrated control box; the waveform decoder has two functions: 1. Processing the measured vibration signal (waveform), cooperating with the host computer software, and displaying the frequency and amplitude of the correct test calibration waveform; 2. The waveform decoder can superimpose the waveform generated in the frequency waveform generator, the vibration waveform of the vibration platform, and the waveform collected by the vibration sensor under test as data waveforms, and output them to the host computer for display; a signal input interface can also be designed separately on the waveform decoder to collect and digitally convert the vibration signal collected by the vibration sensor under test, which can be transmitted separately to the host computer for display to determine the performance of the vibration sensor under test and its ability to collect data.

[0137] Optionally, the device provided in this embodiment may further include:

[0138] The frequency waveform generator is used to generate a preset vibration frequency.

[0139] Optionally, the performance analysis module 34 is specifically used to determine the measured vibration waveform based on the measured vibration frequency; restore the preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency; and determine the performance of the measured vibration sensor based on the difference between the measured vibration waveform and the preset vibration waveform.

[0140] In this embodiment, the performance analysis module may be integrated in the host computer, and the performance of the vibration sensor under test may be determined by displaying and comparing the measured vibration waveform and the preset vibration waveform in the host computer.

[0141] Optionally, the device provided in this embodiment may further include:

[0142] The rotating bracket is used to place the vibrator and adjust the placement direction of the vibrator and the vibration platform according to the type of the vibration sensor to be tested.

[0143] Optionally, the vibration platform includes a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is provided on the back side of the vibration platform;

[0144] The rangefinder is used to obtain the change in distance between the vibrator and the vibration platform when collecting the measured vibration frequency; based on the distance change, the vibration waveform corresponding to the measured vibration frequency is adjusted to obtain the adjusted measured vibration frequency.

[0145] Optionally, the vibration platform is connected to the vibrator via a transmission rod.

[0146] Figure 4FIG. 1 is a schematic diagram of the structure of a vibration sensor detection device provided by another exemplary embodiment of the present disclosure. Figure 4 As shown, the vibrator 41 is arranged on the rotating bracket 42, and the vibrator 41 body can be encapsulated in a cylindrical iron shell that is resistant to electromagnetic interference, and can be directly placed on a desktop for resonance testing.

[0147] like Figure 5a As shown, it is a partial left view of the vibration sensor detection device when the rotating bracket 42 is in a stationary vertical state; Figure 5b 4 is a partial left view of the vibration sensor detection device when the rotating bracket 42 is in a stationary horizontal state.

[0148] The vibrator 41 is connected to the vibration platform 43 through a transmission rod 44, and the displacement sensor 45 is arranged on the side of the vibration platform facing the vibrator 41; in an optional example, the maximum load-bearing capacity of the vibration platform 43 is 5kg, and the cross-section of the vibration platform 43 is circular with a diameter of 12cm, which is suitable for most wave picking instruments and integrated seismographs in the seismic exploration industry.

[0149] The vibration signal of the vibration sensor (not shown in the figure) to be measured is collected through the external measurement wire 46;

[0150] In this embodiment, the frequency waveform generator, waveform decoder and data acquisition module 33 are integrated in the hardware integrated control box 47. The data acquisition module 33 mainly transmits the instructions of the host computer to the waveform signal generator and the waveform decoder, and then collects and processes the preset vibration frequency, displacement sensor signal, waveform decoder signal and the self-collected signal of the measured vibration sensor and transmits them to the host computer; as shown in Figure 5, the hardware integrated control box 47 is also connected to the oscillator 41 and the displacement sensor 45 by wire; optionally, this embodiment also includes a host computer 48, which transmits the measured vibration frequency and the preset vibration frequency to the host computer through the data acquisition module, and displays and compares the waveforms on the host computer.

Claims

1. A vibration sensor detection method, characterized in that: include: Controlling the vibration of the actuator according to a preset vibration frequency; The vibration sensor to be measured is driven to vibrate by the vibrator; wherein the vibration sensor to be measured is placed on a vibration platform connected to the vibrator; Collecting the measured vibration frequency of the measured vibration sensor; Determining the performance of the measured vibration sensor based on the measured vibration frequency and the preset vibration frequency; The step of controlling the vibration of the actuator according to the preset vibration frequency comprises: Generating the preset vibration frequency by a frequency waveform generator; controlling the vibration of the actuator according to the preset vibration frequency; The step of collecting the measured vibration frequency of the measured vibration sensor comprises: Obtaining a vibration signal of the vibration sensor under test through an external measuring wire connected to the vibration sensor under test; wherein the vibration signal represents a signal obtained by measuring the vibration of the vibration platform through the vibration sensor under test; and performing digital conversion on the vibration signal through a waveform decoder to obtain the vibration frequency under test; The determining the performance of the vibration sensor under test based on the measured vibration frequency and the preset vibration frequency includes: Determine the measured vibration waveform based on the measured vibration frequency; restore the preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency; and determine the performance of the measured vibration sensor based on the difference between the measured vibration waveform and the preset vibration waveform.

2. The method according to claim 1, characterized in that The vibrator is arranged on the rotating bracket; The step of driving the vibration sensor to be measured to vibrate by the oscillator comprises: In response to the vibration sensor being measured being a vertical vibration sensor, adjusting the rotating bracket so that the oscillator is arranged vertically; The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the vertical direction by the vibration of the vibrator in the vertical direction; wherein the vibration platform is arranged horizontally; In response to the vibration sensor being measured being a horizontal vibration sensor, adjusting the rotating bracket so that the vibrator is arranged horizontally; The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the horizontal direction by the vibration of the vibrator in the horizontal direction; wherein the vibration platform is arranged vertically; In response to the vibration sensor being measured being another vibration sensor, adjusting the rotating bracket so that the vibrator is set at a corresponding set angle of the other vibration sensor; The vibration sensor to be measured placed on the vibration platform is driven to vibrate in the set angle direction by the vibration of the vibrator in the set angle direction.

3. The method according to claim 1 or 2, characterized in that: The vibration platform comprises a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is arranged on the back side of the vibration platform.

4. The method according to claim 3, characterized in that Also includes: Obtaining, by means of the distance meter, a change in the distance between the vibrator and the vibration platform when collecting the measured vibration frequency; The vibration waveform corresponding to the measured vibration frequency is adjusted based on the distance change to obtain an adjusted measured vibration frequency.

5. The method according to claim 1 or 2, characterized in that: The vibration platform is connected to the vibrator through a transmission rod.

6. A vibration sensor detection device, characterized in that: include: A vibration module, used for controlling the vibration of the actuator according to a preset vibration frequency; The resonance module is used to drive the vibration sensor to be measured to vibrate through the vibrator; wherein the vibration sensor to be measured is placed on a vibration platform connected to the vibrator; A data acquisition module, used for acquiring the measured vibration frequency of the measured vibration sensor; A performance analysis module, configured to determine the performance of the vibration sensor under test based on the measured vibration frequency and the preset vibration frequency; The device also includes: A frequency waveform generator, used to generate the preset vibration frequency; An external measuring wire is used to connect to the vibration sensor to be measured and obtain a vibration signal of the vibration sensor to be measured; wherein the vibration signal represents a signal obtained by measuring the vibration of the vibration platform by the vibration sensor to be measured; the vibration signal is digitally converted by a waveform decoder to obtain the measured vibration frequency; The performance analysis module is specifically used to determine the measured vibration waveform based on the measured vibration frequency; restore the preset vibration waveform corresponding to the frequency waveform generator based on the preset vibration frequency; and determine the performance of the measured vibration sensor based on the difference between the measured vibration waveform and the preset vibration waveform.

7. The device according to claim 6, characterized in that The device also includes: a waveform encoder for converting a preset vibration frequency into an analog voltage; The actuator includes a micromechanical spring system and a frequency motor; The frequency motor is used to generate vibration according to the driving of the analog voltage; The micromechanical spring system is arranged at the upper end of the frequency motor, and is used to vibrate according to the drive of the frequency motor to achieve reciprocating periodic vibration.

8. The device according to claim 6 or 7, characterized in that The device also includes: The rotating bracket is used to place the vibrator and adjust the placement direction of the vibrator and the vibration platform according to the type of the vibration sensor to be tested.

9. The device according to claim 6 or 7, characterized in that The vibration platform comprises a front side and a back side, the vibration sensor to be measured is placed on the front side of the vibration platform, and a rangefinder is arranged on the back side of the vibration platform; The rangefinder is used to obtain the change in distance between the vibrator and the vibration platform when collecting the measured vibration frequency; and to adjust the vibration waveform corresponding to the measured vibration frequency based on the distance change to obtain the adjusted measured vibration frequency.

10. The device according to claim 6 or 7, characterized in that The vibration platform is connected to the vibrator through a transmission rod.

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