Dynamic calibration device and method for rotor vibration

Abstract

The invention provides a dynamic calibration device and method for rotor vibration. The calibration device comprises a carbon fiber reinforced polymer (CFRP) rotor; the CFRP rotor driving device is used for driving the CFRP rotor to rotate; the CFRP rotor and the CFRP rotor driving device are sleeved with the outer sleeve, and a detection opening is formed in one side of the outer sleeve; the eddy current sensor is arranged at the detection port; the light curtain sensor is arranged between the detection opening and the vacuum cover; and the controller is used for receiving first vibration data which are acquired by the eddy current sensor and are generated when the CFRP rotor rotates in the vacuum environment of the vacuum cover and second vibration data which are acquired by the light curtain sensor and are generated when the CFRP rotor rotates, and carrying out dynamic calibration and correction on the first vibration data according to the second vibration data. According to the invention, calibration and correction can be carried out on the testing process of the eddy current sensor, and the problem of inaccurate measurement of the eddy current sensor caused by the influence of the rotating load on the conductivity of the CFRP rotor is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of rotor vibration testing, and in particular to a dynamic calibration device and method for rotor vibration. Background Art

[0002] Carbon fiber reinforced polymer (CFRP) rotors refer to rotors made of carbon fiber reinforced composite materials. The vibration test of CFRP rotors is an important part of evaluating their performance and reliability. The eddy current method is an effective method commonly used to test the vibration of CFRP rotors. The current eddy current method adopts "static calibration and dynamic use". The eddy current sensor is only calibrated in static state to obtain the sensitivity, and then directly applied to the dynamic rotor vibration test.

[0003] However, in actual dedicated equipment, the CFRP rotor is in a rotating state and will be subjected to a rotating load. The rotating load will change the stress state of the CFRP, and the stress will have a complex effect on the conductivity of the CFRP. This calibration method ignores the effect of the rotating load on the conductivity of the CFRP rotor, resulting in the sensor being unable to accurately reflect the actual vibration of the rotor during dynamic testing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a dynamic calibration device and method for rotor vibration, which can calibrate and correct the test process of the eddy current sensor, and effectively solve the problem of inaccurate measurement of the eddy current sensor caused by the conductivity of the CFRP rotor being affected by the rotating load.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows: a dynamic calibration device for rotor vibration, comprising:

[0006] Carbon fiber reinforced polymer CFRP rotor;

[0007] a CFRP rotor driving device for driving the CFRP rotor to rotate;

[0008] An outer sleeve is sleeved on the outside of the CFRP rotor and the CFRP rotor driving device, and a detection port is provided on one side of the outer sleeve;

[0009] An eddy current sensor provided at the detection port;

[0010] The eddy current sensor is externally covered with a vacuum cover, the vacuum cover is sealed and connected to the outer sleeve, and the interior is communicated;

[0011] A light curtain sensor disposed between the detection port and the vacuum cover;

[0012] A controller is used to receive first vibration data generated by the CFRP rotor when it rotates in the vacuum environment of the vacuum cover and collected by the eddy current sensor, and second vibration data generated by the CFRP rotor when it rotates and collected by the light curtain sensor, and dynamically calibrate and correct the first vibration data according to the second vibration data.

[0013] Optionally, the axes of the CFRP rotor, the CFRP rotor driving device and the outer sleeve coincide with each other.

[0014] Optionally, a vacuum pumping device is provided in the outer sleeve, and the vacuum pumping device is a molecular pump.

[0015] Optionally, the CFRP rotor drive device is a disc hysteresis motor.

[0016] Optionally, the device further comprises: a distance adjustment mechanism disposed in the vacuum cover, wherein the distance adjustment mechanism is a linear servo motor for adjusting the distance between the eddy current sensor and the CFRP rotor.

[0017] Optionally, the controller includes a servo motor controller, an eddy current sensor acquisition card, a light curtain sensor controller and an industrial computer;

[0018] Wherein, the servo motor controller is electrically connected to the linear servo motor and is used to control the distance between the eddy current sensor and the CFRP rotor;

[0019] The eddy current sensor acquisition card is electrically connected to the eddy current sensor, and is used to receive first vibration data generated by the eddy current sensor when the CFRP rotor rotates in the vacuum environment of the vacuum cover;

[0020] The light curtain sensor controller is electrically connected to the light curtain sensor and is used to collect second vibration data generated by the CFRP rotor when it rotates.

[0021] The industrial computer is electrically connected to the servo motor controller, the eddy current sensor acquisition card and the light curtain sensor controller, and is used to dynamically calibrate and correct the first vibration data according to the second vibration data, and to control the distance between the eddy current sensor and the CFRP rotor.

[0022] Optionally, the first vibration data and the second vibration data both include amplitude data and gap data;

[0023] The controller is used for dynamically calibrating and correcting the amplitude data and gap data of the second vibration data according to the amplitude data and gap data of the first vibration data.

[0024] The present invention also provides a dynamic calibration method for testing CFRP rotor vibration using an eddy current method, which is applied to the calibration device as described above, and comprises:

[0025] receiving first vibration data generated when the CFRP rotor rotates in the vacuum environment of the vacuum cover collected by the eddy current sensor and second vibration data generated when the CFRP rotor rotates collected by the light curtain sensor;

[0026] The first vibration data is dynamically calibrated and corrected according to the second vibration data.

[0027] Optionally, dynamically calibrating and correcting the first vibration data according to the second vibration data includes:

[0028] According to N i =A i -B i Obtaining a calibration array of the first vibration data,

[0029] According to M i =N i +B i obtaining the corrected first vibration data;

[0030] Among them, i is the array index value, N i is the calibration array of the first vibration data, A i is the array of the first vibration data, B i is the array of the second vibration data, M i is the first vibration data after correction.

[0031] The present invention also provides a computer-readable storage medium storing instructions, which, when executed on a computer, enable the computer to execute the method described above.

[0032] The above solution of the present invention includes at least the following beneficial effects:

[0033] The above solution of the present invention receives the first vibration data collected by the eddy current sensor and the second vibration data collected by the light curtain sensor through the controller, and dynamically calibrates and corrects the first vibration data according to the second vibration data. When the CFRP rotor is in a rotating state and subjected to a rotating load, the complex influence of stress changes on the conductivity of the CFRP can be considered in real time, thereby correcting the measurement data so that the measurement results more accurately reflect the actual vibration of the rotor.

[0034] The “dynamic calibration and dynamic use” approach fully considers the working conditions in which the CFRP rotor 3 is in a rotating state and subjected to a rotating load during the actual test, overcomes the defects of the traditional “static calibration and dynamic use” method, makes the test results more in line with the actual operating conditions, and provides more reliable data support for the performance evaluation and fault diagnosis of the equipment.

[0035] After calibration and correction, the measurement result of the eddy current sensor 5 can more accurately reflect the vibration of the CFRP rotor 3 when it is used dynamically, which can effectively overcome the measurement error caused by factors such as the change in CFRP conductivity and ensure the measurement accuracy.

[0036] In dynamic use, there is no need to use the light curtain sensor 2 to collect data and conduct comparative analysis. The eddy current sensor 5 can directly and quickly output the measurement results, shortening the time for data collection and processing and improving the efficiency of the entire test process. Removing the light curtain sensor 2 can directly reduce the equipment purchase cost and save space.

[0037] The device is equipped with a vacuum cover that is sleeved on the outside of the eddy current sensor, and the vacuum cover is sealed and connected to the outer sleeve and internally connected. In actual rotating equipment, air damping will affect the vibration of the CFRP rotor and change its vibration characteristics. In a vacuum environment, the interference of air damping on the rotor vibration can be effectively reduced, so that the measured vibration data can more purely reflect the vibration of the rotor itself, further improving the accuracy and reliability of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a dynamic calibration device for testing CFRP rotor vibration using an eddy current method according to the present invention.

[0039] Figure 2 It is a partial structural schematic diagram of a dynamic calibration device for testing CFRP rotor vibration using an eddy current method of the present invention.

[0040] Figure 3 It is a flow chart of the dynamic calibration method for testing CFRP rotor vibration using the eddy current method of the present invention.

[0041] Description of reference numerals:

[0042] 1. Outer sleeve; 2. Light curtain sensor; 3. CFRP rotor; 4. Linear servo motor; 5. Eddy current sensor; 6. Laser beam; 7. Vacuum cover; 8. Servo motor controller; 9. Eddy current sensor acquisition card; 10. Light curtain sensor controller; 11. Industrial computer. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0044] like Figure 1 , Figure 2As shown, an embodiment of the present invention provides a dynamic calibration device for rotor vibration, comprising:

[0045] Carbon fiber reinforced polymer CFRP rotor 3;

[0046] A CFRP rotor driving device for driving the CFRP rotor 3 to rotate;

[0047] An outer sleeve 1 is sleeved on the outside of the CFRP rotor 3 and the CFRP rotor driving device, and a detection port is provided on one side of the outer sleeve 1;

[0048] An eddy current sensor 5 provided at the detection port;

[0049] The eddy current sensor 5 is externally covered with a vacuum cover 7, and the vacuum cover 7 is sealed and connected to the outer sleeve 1, and is internally communicated;

[0050] A light curtain sensor 2 disposed between the detection port and the vacuum cover 7;

[0051] A controller is used to receive first vibration data generated by the CFRP rotor 3 when it rotates in the vacuum environment of the vacuum cover 7 and collected by the eddy current sensor 5, and second vibration data generated by the CFRP rotor 3 when it rotates and collected by the light curtain sensor 2, and dynamically calibrate and correct the first vibration data according to the second vibration data.

[0052] The present invention receives the first vibration data collected by the eddy current sensor 5 and the second vibration data collected by the light curtain sensor 2 through the controller, and dynamically calibrates and corrects the first vibration data according to the second vibration data. When the CFRP rotor 3 is in a rotating state and bears a rotating load, the complex influence of stress changes on the conductivity of CFRP can be considered in real time, thereby correcting the measurement data so that the measurement results more accurately reflect the actual vibration of the rotor.

[0053] The “dynamic calibration and dynamic use” approach fully considers the working conditions in which the CFRP rotor 3 is in a rotating state and subjected to a rotating load during the actual test, overcomes the defects of the traditional “static calibration and dynamic use” method, makes the test results more in line with the actual operating conditions, and provides more reliable data support for the performance evaluation and fault diagnosis of the equipment.

[0054] After calibration and correction, the measurement result of the eddy current sensor 5 can more accurately reflect the vibration of the CFRP rotor 3 when it is used dynamically, which can effectively overcome the measurement error caused by factors such as the change in CFRP conductivity and ensure the measurement accuracy.

[0055] In dynamic use, there is no need to use the light curtain sensor 2 to collect data and conduct comparative analysis. The eddy current sensor 5 can directly and quickly output the measurement results, shortening the time for data collection and processing and improving the efficiency of the entire test process. Removing the light curtain sensor 2 can directly reduce the equipment purchase cost and save space.

[0056] The device is provided with a vacuum cover 7 which is sleeved on the outside of the eddy current sensor 5, and the vacuum cover 7 is sealed and connected to the outer sleeve 1 and is internally connected. In actual rotating equipment, air damping will affect the vibration of the CFRP rotor 3 and change its vibration characteristics. In a vacuum environment, the interference of air damping on the vibration of the rotor can be effectively reduced, so that the measured vibration data can more purely reflect the vibration of the rotor itself, further improving the accuracy and reliability of the measurement.

[0057] Specifically, when the CFRP rotor 3 reaches the rated speed and runs stably under the drive of the CFRP rotor drive device, the light curtain sensor 2 starts to work. It emits multiple parallel laser beams 6, which are evenly distributed at a specific interval to form a light curtain area, completely covering the vibration monitoring range of the CFRP rotor 3. When the CFRP rotor 3 is not vibrating or is in a stationary state, all laser beams 6 can pass through smoothly and be completely received by the receiving end of the light curtain sensor 2.

[0058] Once the CFRP rotor 3 vibrates, its surface will block part of the laser beam 6 during the vibration process. The receiving end of the light curtain sensor 2 can detect the blocking of the laser beam 6 in real time and convert the optical signal change into an electrical signal.

[0059] In an optional embodiment of the present invention, the axes of the CFRP rotor 3 , the CFRP rotor driving device and the outer sleeve 1 coincide with each other.

[0060] In this example, the coincidence of the axis of the CFRP rotor 3, the CFRP rotor drive device and the outer sleeve 1 can evenly distribute the centrifugal force of the CFRP rotor 3, reduce additional vibration and stress concentration, ensure test accuracy, and improve the reliability of sensor data. Secondly, it can reduce the load of the CFRP rotor drive device, reduce component wear, extend the service life of the equipment, and optimize the stability of the equipment. Furthermore, it provides a stable measurement object for the sensor, ensures calibration reliability, and improves measurement accuracy. Finally, it is convenient for equipment installation and debugging, reduces repetitive work, improves work efficiency, and saves time and labor costs.

[0061] In an optional embodiment of the present invention, a vacuum pump is provided inside the outer sleeve 1, and the vacuum pump is a molecular pump. The CFRP rotor driving device is a disc hysteresis motor.

[0062] In this example, a molecular pump is used as a vacuum pump, which has a strong vacuuming capacity and high vacuum maintenance performance. It can quickly pump the outer sleeve 1 and the inside of the vacuum cover 7 to the required vacuum state, providing an ideal low-resistance environment for the stable operation of the CFRP rotor 3. In this environment, the CFRP rotor 3 is subject to very little air resistance and interference, which can effectively reduce energy loss, improve operating efficiency, and reduce heat and vibration generated by air friction, thereby improving the stability and reliability of the entire test system.

[0063] As a CFRP rotor driving device, the disk hysteresis motor has the advantages of large starting torque, stable speed, and fast response speed. It can quickly accelerate the CFRP rotor 3 to the rated speed and maintain a stable speed output during operation, providing a stable power source for the vibration test of the CFRP rotor 3. Its precise speed control capability ensures that the CFRP rotor 3 is in an ideal operating state under different test conditions, which helps to obtain accurate vibration test data.

[0064] In an optional embodiment of the present invention, the device further comprises: a distance adjustment mechanism disposed in the vacuum cover 7 , wherein the distance adjustment mechanism is a linear servo motor 4 for adjusting the distance between the eddy current sensor 5 and the CFRP rotor 3 .

[0065] In this example, the linear servo motor 4 is used as a distance adjustment mechanism to achieve high-precision linear motion control. Through the precise control of the servo motor controller 8, the distance between the eddy current sensor 5 and the CFRP rotor 3 can be adjusted quickly and accurately. During the test, the position of the eddy current sensor 5 can be flexibly changed according to actual needs to ensure that it is always in the best measurement position, thereby improving the accuracy of the eddy current sensor 5 in collecting the vibration parameters of the CFRP rotor 3, and providing more reliable data support for subsequent data comparison and analysis.

[0066] In an optional embodiment of the present invention, the controller includes a servo motor controller 8, an eddy current sensor acquisition card 9, a light curtain sensor controller 10 and an industrial computer 11;

[0067] Wherein, the servo motor controller 8 is electrically connected to the linear servo motor 4 and is used to control the distance between the eddy current sensor 5 and the CFRP rotor 3;

[0068] The eddy current sensor acquisition card 9 is electrically connected to the eddy current sensor 5, and is used to receive the first vibration data generated by the eddy current sensor 5 when the CFRP rotor 3 rotates in the vacuum environment of the vacuum cover 7;

[0069] The light curtain sensor controller 10 is electrically connected to the light curtain sensor 2 and is used for collecting the second vibration data generated by the CFRP rotor 3 when the CFRP rotor 3 rotates.

[0070] The industrial computer 11 is electrically connected to the servo motor controller 8, the eddy current sensor acquisition card 9 and the light curtain sensor controller 10, and is used to dynamically calibrate and correct the first vibration data according to the second vibration data, and to control the distance between the eddy current sensor 5 and the CFRP rotor 3.

[0071] In this example, the servo motor controller 8 is connected to the linear servo motor 4, and can accurately control the distance between the eddy current sensor 5 and the CFRP rotor 3. The eddy current sensor acquisition card 9 is specifically responsible for receiving the first vibration data collected by the eddy current sensor 5 in a vacuum environment, and the light curtain sensor controller 10 is responsible for processing the second vibration data collected by the light curtain sensor 2. This specialized data acquisition control method ensures that the data collected by the two sensors can be acquired and processed in a timely and accurate manner. The industrial computer 11 comprehensively processes the data from the eddy current sensor acquisition card 9 and the light curtain sensor controller 10. It can dynamically calibrate and correct the first vibration data collected by the eddy current sensor 5 based on the second vibration data collected by the light curtain sensor 2. This intelligent data processing method fully considers the complex working conditions of the CFRP rotor 3 in actual operation, and improves the accuracy of the vibration measurement of the CFRP rotor 3 by comparing and correcting the two sets of data in real time. For example, when the conductivity of the CFRP rotor 3 changes due to the rotational load, thereby affecting the measurement result of the eddy current sensor 5, the industrial computer 11 can correct the data of the eddy current sensor 5 based on the relatively stable data provided by the light curtain sensor 2 to make the measurement result closer to the actual vibration situation.

[0072] In an optional embodiment of the present invention, the first vibration data and the second vibration data both include amplitude data and gap data;

[0073] The controller is used for dynamically calibrating and correcting the amplitude data and gap data of the second vibration data according to the amplitude data and gap data of the first vibration data.

[0074] In this example, the vibration characteristics of the CFRP rotor 3 are often very complex, including multiple frequency components and subtle changes. By dynamically calibrating and correcting the first vibration data, these subtle vibration changes can be captured more sensitively. This dynamic correction process can adjust the measurement data in real time to adapt to the changes in the rotor vibration characteristics, thereby more accurately reflecting the true state of the CFRP rotor 3 under complex vibration conditions.

[0075] like Figure 3 As shown, the present invention also provides a dynamic calibration method for testing the vibration of a CFRP rotor 3 using an eddy current method, which is applied to the calibration device as described above, and comprises:

[0076] Step 11, receiving first vibration data generated when the CFRP rotor 3 rotates in the vacuum environment of the vacuum cover 7 collected by the eddy current sensor 5 and second vibration data generated when the CFRP rotor 3 rotates collected by the light curtain sensor 2;

[0077] Step 12: dynamically calibrate and correct the first vibration data according to the second vibration data.

[0078] This method performs dynamic calibration correction based on the data collected by the two sensors in the calibration device. When the CFRP rotor 3 is actually running, it will be affected by complex factors such as the rotating load, resulting in a decrease in the accuracy of the measurement of the eddy current sensor 5. By receiving the second vibration data collected by the light curtain sensor 2 in real time and correcting the first vibration data of the eddy current sensor 5 accordingly, it can effectively compensate for the measurement error caused by the rotating load changing the CFRP stress state and conductivity, so that the measurement result is closer to the actual vibration condition of the CFRP rotor 3.

[0079] In an optional embodiment of the present invention, in step 12, dynamically calibrating and correcting the first vibration data according to the second vibration data comprises:

[0080] Step 121, according to N i =A i -B i Obtaining a calibration array of the first vibration data,

[0081] Step 122, according to M i =N i +B i obtaining the corrected first vibration data;

[0082] Among them, i is the array index value, N i is the calibration array of the first vibration data, A i is the array of the first vibration data, B i is the array of the second vibration data, M i is the first vibration data after correction.

[0083] Through these two steps, the first vibration data is dynamically calibrated and corrected, which can more keenly capture subtle vibration changes. The calibration array of the first vibration data is obtained, and the calibration array of the first vibration data is applied in the subsequent dynamic use, so that in the subsequent dynamic use, there is no need to set up the light curtain sensor 2 and then perform the dynamic calibration correction step. Only the vibration data detected in the dynamic use needs to be combined with the calibration array of the first vibration data to obtain more accurate vibration data. The measurement time is greatly shortened, the measurement efficiency is improved, and the monitoring and control requirements with higher real-time requirements can be better met.

[0084] It should be noted that the method is a method corresponding to the above-mentioned system, and all implementation methods in the above-mentioned system embodiments are applicable to the embodiments of the method and can achieve the same technical effects.

[0085] In an embodiment of the present invention, a computer-readable storage medium is further provided, which stores instructions, and when the instructions are executed on a computer, the computer executes the method described in the above embodiment. All implementations in the above method embodiment are applicable to this embodiment, and can also achieve the same technical effect.

[0086] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0087] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0088] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0091] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0092] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0093] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0094] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A dynamic calibration device for rotor vibration, characterized in that: include: Carbon fiber reinforced polymer CFRP rotor (3); A CFRP rotor driving device for driving the CFRP rotor (3) to rotate; An outer sleeve (1) sleeved on the outside of the CFRP rotor (3) and the CFRP rotor driving device, wherein one side of the outer sleeve (1) is provided with a detection port; An eddy current sensor (5) disposed at the detection port; The eddy current sensor (5) is externally covered with a vacuum cover (7), and the vacuum cover (7) is sealed and connected to the outer sleeve (1), and is internally communicated with the outer sleeve; A light curtain sensor (2) disposed between the detection port and the vacuum cover (7); A controller is used to receive first vibration data generated when the CFRP rotor (3) rotates in the vacuum environment of the vacuum cover (7) and collected by the eddy current sensor (5), and second vibration data generated when the CFRP rotor (3) rotates and collected by the light curtain sensor (2), and dynamically calibrate and correct the first vibration data based on the second vibration data.

2. The dynamic calibration device for rotor vibration according to claim 1, characterized in that: The axes of the CFRP rotor (3), the CFRP rotor driving device and the outer sleeve (1) coincide with each other.

3. The dynamic calibration device for rotor vibration according to claim 1, characterized in that: A vacuum pump is provided inside the outer sleeve (1), and the vacuum pump is a molecular pump.

4. The dynamic calibration device for rotor vibration according to claim 1, characterized in that: The CFRP rotor driving device is a disc-type hysteresis motor.

5. The dynamic calibration device for rotor vibration according to claim 1, characterized in that: Also includes: A distance adjustment mechanism is arranged in the vacuum cover (7), wherein the distance adjustment mechanism is a linear servo motor (4) used to adjust the distance between the eddy current sensor (5) and the CFRP rotor (3).

6. The dynamic calibration device for rotor vibration according to claim 5, characterized in that: The controller comprises a servo motor controller (8), an eddy current sensor acquisition card (9), a light curtain sensor controller (10) and an industrial computer (11); Wherein, the servo motor controller (8) is electrically connected to the linear servo motor (4) and is used to control the distance between the eddy current sensor (5) and the CFRP rotor (3); The eddy current sensor acquisition card (9) is electrically connected to the eddy current sensor (5) and is used to receive first vibration data generated by the eddy current sensor (5) when the CFRP rotor (3) rotates in the vacuum environment of the vacuum cover (7); The light curtain sensor controller (10) is electrically connected to the light curtain sensor (2) and is used for collecting second vibration data generated by the CFRP rotor (3) during rotation and collected by the light curtain sensor (2); The industrial computer (11) is electrically connected to the servo motor controller (8), the eddy current sensor acquisition card (9) and the light curtain sensor controller (10), and is used to dynamically calibrate and correct the first vibration data according to the second vibration data, and to control the distance between the eddy current sensor (5) and the CFRP rotor (3).

7. The dynamic calibration device for rotor vibration according to claim 1, characterized in that: The first vibration data and the second vibration data both include amplitude data and gap data; The controller is used for dynamically calibrating and correcting the amplitude data and gap data of the second vibration data according to the amplitude data and gap data of the first vibration data.

8. A dynamic calibration method for rotor vibration, applied to the dynamic calibration device for rotor vibration according to any one of claims 1 to 7, characterized in that: include: receiving first vibration data generated when the CFRP rotor (3) rotates in the vacuum environment of the vacuum cover (7) and collected by the eddy current sensor (5), and second vibration data generated when the CFRP rotor (3) rotates and collected by the light curtain sensor (2); The first vibration data is dynamically calibrated and corrected according to the second vibration data.

9. The dynamic calibration method of rotor vibration according to claim 8, characterized in that: Dynamically calibrating and correcting the first vibration data according to the second vibration data; comprising: According to N i =A i -B i Obtaining a calibration array of the first vibration data, According to M i =N i +B i obtaining the corrected first vibration data; Among them, i is the array index value, N i is the calibration array of the first vibration data, A i is the array of the first vibration data, B i is the array of the second vibration data, M i is the first vibration data after correction.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 8 to 9.

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