Portable vibration measuring device for nuclear power plant

Abstract

The utility model relates to a portable vibration measuring device for a nuclear power plant. The plurality of vibration sensors are mounted on the mechanical equipment to sense vibration information of the mechanical equipment and output vibration signals; the vibration sampling module is arranged in the shell, connected with the vibration sensors and used for converting the vibration signals; the edge calculation module is arranged in the shell, is connected with the vibration sampling module and is used for receiving the converted vibration signal and outputting an edge calculation signal; the communication module is arranged in the shell, connected with the edge calculation module and used for being in communication connection with a monitoring platform so as to transmit an edge calculation signal to the monitoring platform; and the power supply module is connected with the vibration sampling module, the edge calculation module, the communication module and the vibration sensors. The off-line vibration measuring instrument can help a worker to monitor vibration information at a plurality of designated positions in real time, and solves the problem that a traditional off-line vibration measuring instrument has few acquisition channels and cannot perform remote monitoring.

Description

Technical Field

[0001] This utility model relates to the field of vibration measurement technology, and in particular to a portable vibration measurement device for nuclear power plants. Background Technology

[0002] For rotating machinery, most faults are vibration-related. In nuclear power plants, vibration measurement of rotating machinery typically involves fixing vibration sensors to the equipment, converting vibration signals into electrical signals via a transmitter, and then converting these electrical signals into digital signals for storage and analysis via a data acquisition device. Vibration measurement devices are widely used in the vibration measurement of numerous rotating machines in nuclear power plants. However, while traditional vibration measurement devices can continuously monitor the vibration of rotating equipment, they generally require a host computer with on-site software for data acquisition. Furthermore, they are bulky, inconvenient to carry, and complex to operate. Measurement personnel must connect to the host computer on-site for communication debugging to view vibration data, making it impossible to quickly and intuitively observe vibration output remotely. Additionally, the instruments are expensive. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the issue of traditional offline vibration measurement instruments having limited data acquisition channels and being unable to be remotely monitored, and to provide a portable vibration measurement device for nuclear power plants.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a portable vibration measuring device for nuclear power plants, comprising:

[0005] case;

[0006] Multiple vibration sensors are used to be installed on mechanical equipment to sense vibration information of the mechanical equipment and output vibration signals;

[0007] A vibration sampling module, located inside the housing and connected to each of the vibration sensors, is used to convert the vibration signals.

[0008] An edge computing module is located inside the housing, connected to the vibration sampling module, and is used to receive the converted vibration signal and output the edge computing signal.

[0009] A communication module disposed within the housing, connected to the edge computing module, and used for communication with the monitoring platform to transmit the edge computing signals to the monitoring platform; and

[0010] A power supply module connected to the vibration sampling module, the edge computing module, the communication module, and each of the vibration sensors.

[0011] Preferably, the vibration sampling module includes a plurality of signal sampling units, the number of which is the same as the plurality of vibration sensors and each of the vibration sensors is connected to a corresponding signal sampling unit, and an analog-to-digital conversion unit connected to each of the signal sampling units; the analog-to-digital conversion unit is also connected to the edge computing module.

[0012] Preferably, each of the signal sampling units includes a control switch P3, a protection diode VD3, a forty-first resistor R41, a forty-fifth resistor R45, a forty-seventh resistor R47, a second diode VD2, a fourth diode VD4, a thirty-ninth resistor R39, a twenty-first capacitor C21, a first operational amplifier U3A, a forty-sixth resistor R46, a twenty-fourth capacitor C24, a forty-second resistor R42, a fortieth resistor R40, a second operational amplifier U3B, a forty-fourth resistor R44, and a forty-third resistor R43;

[0013] One end of the control switch P3 is connected to the power supply module, and the other end of the control switch P3 is connected to the positive output terminal of the vibration sensor, the first terminal of the protection tube VD3, and the first terminal of the forty-first resistor R41. The second terminal of the forty-first resistor R41 is connected to the cathode of the second diode VD2, the second terminal of the thirty-ninth resistor R39, the second terminal of the twenty-first capacitor C21, and the non-inverting input terminal of the first operational amplifier U3A. The second terminal of the protection tube VD3 is connected to the negative output terminal of the vibration sensor, the first terminal of the forty-fifth resistor R45, and the first terminal of the forty-seventh resistor R47. The second terminal of the forty-fifth resistor R45 is connected to the cathode of the fourth diode VD4, the first terminal of the forty-sixth resistor R46, the first terminal of the twenty-fourth capacitor C24, and the first operational amplifier U3A. The negative input terminal of amplifier U3A, the output terminal of the first operational amplifier U3A is connected to the second terminal of the forty-sixth resistor R46, the second terminal of the twenty-fourth capacitor C24, and the first terminal of the forty-second resistor R42. The second terminal of the forty-second resistor R42 is connected to the first terminal of the fortyth resistor R40 and the negative input terminal of the second operational amplifier U3B. The positive input terminal of the second operational amplifier U3B is grounded through the forty-fourth resistor R44. The output terminal of the second operational amplifier U3B is connected to the second terminal of the fortyth resistor R40 and the first terminal of the forty-third resistor R43. The second terminal of the forty-third resistor R43 is connected to the edge computing module. The first terminal of the thirty-ninth resistor R39, the first terminal of the twenty-first capacitor C21, and the second terminal of the forty-seventh resistor R47 are grounded.

[0014] Preferably, the power supply module includes a DC power supply, a switching module, and a step-down module;

[0015] The output terminal of the DC power supply is connected to the input terminal of the switching module, the output terminal of the switching module is connected to the vibration sampling module and the step-down module, and the step-down module is also connected to the edge computing module and the communication module.

[0016] Preferably, the communication module includes a WiFi communication module connected to the edge computing module for communicating with the monitoring platform.

[0017] Preferably, the number of vibration sensors is 10; and / or the vibration sensors include accelerometers.

[0018] Preferably, the housing includes a first side surface;

[0019] The first side is provided with a plurality of first interfaces, the number of which is the same as the plurality of vibration sensors. The input end of each first interface is connected to each vibration sensor one-to-one via a cable, and the output end of each first interface is connected to the vibration sampling module.

[0020] Preferably, the portable vibration measurement device for nuclear power plants further includes a human-machine interaction module connected to the edge computing module for human-machine interaction with the measurement device.

[0021] Preferably, the second side is provided with a second interface group that connects to the edge computing module and the human-computer interaction module. The second interface group includes, but is not limited to, at least one power supply interface, at least one network interface, at least one USB interface and at least one video communication interface.

[0022] Preferably, the human-computer interaction module includes a mouse, a keyboard, and a monitor.

[0023] This invention can help staff monitor vibration information at multiple designated locations in real time. It is simple to operate and easy to carry. It solves the problems of traditional offline vibration measurement instruments having fewer data acquisition channels, traditional vibration measurement devices being large, inconvenient to carry, cumbersome to operate, unable to be remotely monitored, having great limitations, and high costs. It has the advantage of wide applicability. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0025] Figure 1 This is a circuit structure block diagram of a portable vibration measurement device for nuclear power plants in some embodiments of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a portable vibration measuring device for nuclear power plants in some embodiments of this utility model;

[0027] Figure 3This is a circuit structure block diagram of the vibration sampling module in some embodiments of this utility model;

[0028] Figure 4 This is a circuit diagram of the signal sampling unit in some embodiments of this utility model;

[0029] Figure 5 These are spectrum analysis diagrams from some embodiments of this utility model;

[0030] Figure 6 This is a schematic diagram of the first side view in some embodiments of this utility model. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "up," "down," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Figure 1 This is a circuit structure block diagram of a portable vibration measurement device for nuclear power plants in some embodiments of this utility model. Figure 2 This is a schematic diagram of the structure of a portable vibration measurement device for nuclear power plants in some embodiments of this utility model. The portable vibration measurement device for nuclear power plants may include a housing 1, a vibration sampling module 3, an edge computing module 4, a communication module 5, a power supply module 6, and multiple vibration sensors 2.

[0034] Each vibration sensor 2 is installed on the mechanical equipment to sense the vibration information of the equipment and output a vibration signal. Specifically, the vibration sensor 2 may include an existing accelerometer. Each accelerometer senses vibration information at multiple designated locations on the mechanical equipment and converts the vibration information into an electrical signal (i.e., a vibration signal), achieving the technical effect of simultaneously monitoring vibration information at multiple designated locations. It should be noted that the working principle of the accelerometer is explained in existing technology and will not be repeated here.

[0035] In some embodiments, the number of vibration sensors 2 can be 10.

[0036] Each vibration sampling module 3 is located inside the housing 1. Each vibration sampling module 3 is connected to each vibration sensor 2 via a cable. Each vibration sampling module 3 is used to convert vibration signals.

[0037] In some embodiments, such as Figure 3 As shown, the vibration sampling module 3 may include multiple signal sampling units 31, the same number as the multiple vibration sensors 2, connected one-to-one with each vibration sensor 2, and analog-to-digital conversion units 32 connected to each signal sampling unit 31; the analog-to-digital conversion unit 32 is also connected to the edge computing module 4. In this embodiment, the signal sampling unit 31 is used to process the vibration signal output by the vibration sensor 2 (such as buffering, amplification, etc.), while the analog-to-digital conversion unit 32 is used to perform analog-to-digital conversion on the processed vibration signal and send the converted vibration signal to the edge computing module 4.

[0038] In some embodiments, such as Figure 4 As shown, each signal sampling unit 31 may include a control switch P3, a protection diode VD3, a forty-first resistor R41, a forty-fifth resistor R45, a forty-seventh resistor R47, a second diode VD2, a fourth diode VD4, a thirty-ninth resistor R39, a twenty-first capacitor C21, a first operational amplifier U3A, a forty-sixth resistor R46, a twenty-fourth capacitor C24, a forty-second resistor R42, a fortieth resistor R40, a second operational amplifier U3B, a forty-fourth resistor R44, and a forty-third resistor R43.

[0039] Specifically, one end of control switch P3 is connected to power supply module 6, and the other end of control switch P3 is connected to the positive output terminal of vibration sensor 2, the first terminal of protection tube VD3, and the first terminal of the forty-first resistor R41. The second terminal of the forty-first resistor R41 is connected to the cathode of the second diode VD2, the second terminal of the thirty-ninth resistor R39, the second terminal of the twenty-first capacitor C21, and the non-inverting input terminal of the first operational amplifier U3A. The second terminal of protection tube VD3 is connected to the negative output terminal of vibration sensor 2, the first terminal of the forty-fifth resistor R45, and the first terminal of the forty-seventh resistor R47. The second terminal of the forty-fifth resistor R45 is connected to the cathode of the fourth diode VD4, the first terminal of the forty-sixth resistor R46, the first terminal of the twenty-fourth capacitor C24, and the first operational amplifier U3A. The negative input terminal of amplifier U3A, the output terminal of the first operational amplifier U3A is connected to the second terminal of the forty-sixth resistor R46, the second terminal of the twenty-fourth capacitor C24, and the first terminal of the forty-second resistor R42. The second terminal of the forty-second resistor R42 is connected to the first terminal of the fortieth resistor R40. The negative input terminal of the second operational amplifier U3B is grounded through the forty-fourth resistor R44. The output terminal of the second operational amplifier U3B is connected to the second terminal of the fortieth resistor R40 and the first terminal of the forty-third resistor R43. The second terminal of the forty-third resistor R43 is connected to the edge computing module 4. The first terminal of the thirty-ninth resistor R39, the first terminal of the twenty-first capacitor C21, and the second terminal of the forty-seventh resistor R47 are grounded.

[0040] Among them, the control switch P3 can be an existing switching element (such as a transistor, thyristor, relay, etc.) used to control the input power supply of the signal sampling unit 31. The first operational amplifier U3A and the second operational amplifier U3B can be operational amplifiers of model XL5532. The protection tube VD3 can be an existing ESD tube.

[0041] In this embodiment, the first operational amplifier U3A, the forty-first resistor R41, the forty-fifth resistor R45, the forty-seventh resistor R47, the thirty-ninth resistor R39, the twenty-first capacitor C21, the forty-sixth resistor R46, and the twenty-fourth capacitor C24 constitute a signal buffer circuit, which can buffer the vibration signal output by the vibration sensor 2 to obtain a buffered vibration signal; the second operational amplifier U3B, the fortieth resistor R40, and the forty-fourth resistor R44 constitute a differential amplifier, which can amplify the buffered vibration signal to finally obtain the processed vibration signal, and send it to the edge computing module 4.

[0042] Furthermore, such as Figure 4As shown, each signal sampling unit 31 may also include a fuse FU2, a third diode D3, a twenty-second capacitor C22, and a twenty-third capacitor C23. The control switch P3 is connected to the power supply module 6 via the cathode and anode of the third diode D3 and the fuse FU2. The positive power input terminal of the first operational amplifier U3A is grounded via the twenty-second capacitor C22, and the negative power input terminal of the first operational amplifier U3A is grounded via the twenty-third capacitor C23. The fuse FU2 can be an FSMD020 type, used to prevent overcurrent damage to the signal sampling unit 31. The third diode D3 is used to prevent the power supply module 6 from supplying the signal sampling unit 31 to the wrong location, which could damage the signal sampling unit 31. The twenty-second capacitor C22 and the twenty-third capacitor C23 serve a filtering function.

[0043] In some embodiments, the analog-to-digital conversion unit 32 may include a dual-core high-speed AD acquisition circuit composed of an FPGA and an ARM processor, which can convert the analog signal output by the accelerometer into a digital signal. Of course, the analog-to-digital conversion unit 32 can also be an existing analog-to-digital conversion module, as long as it can convert the digital signal (processed vibration signal) into a digital signal.

[0044] The edge computing module 4 is located inside the housing 1. The edge computing module 4 is connected to the vibration sampling module 3. The edge computing module 4 is used to receive the converted vibration signal and output the edge computing signal.

[0045] In some embodiments, the edge computing module 4 can be an edge counter of model UNO-2271G. This embodiment integrates an existing edge counter and utilizes its functions to process and analyze vibration signals (including analyzing the waveform data and spectrum of vibration signals, and saving historical waveforms and historical spectra, etc.), thereby obtaining the edge computing signal. Figure 5 These are spectrum analysis diagrams from some embodiments of this utility model.

[0046] The communication module 5 is located inside the housing 1. The communication module 5 is connected to the edge computing module 4 to receive the edge computing signal. The communication module 5 is used to communicate with the monitoring platform 10 to transmit the edge computing signal to the monitoring platform 10, so that the staff can observe the spectrum of the vibration signal through the monitoring platform 10 and realize remote monitoring of the vibration information of the mechanical equipment.

[0047] In some embodiments, the communication module 5 may include a WiFi communication module connected to the edge computing module 4 for communicating with the monitoring platform 10. Preferably, the WiFi communication module is an existing WiFi communication module with encryption, wireless relay, and one-way communication functions. Understandably, this embodiment enables information exchange between the monitoring platform 10 and the portable vibration measurement device of the nuclear power plant via a WiFi network, which helps improve the convenience of this invention.

[0048] The power supply module 6 is connected to the vibration sampling module 3, the edge computing module 4, the communication module 5 and each vibration sensor 2 to supply power to the vibration sampling module 3, the edge computing module 4, the communication module 5 and each vibration sensor 2.

[0049] In some embodiments, such as Figure 1 As shown, the power supply module 6 may include a DC power supply 61, a switching module 62, and a step-down module 63. The output terminal of the DC power supply 61 is connected to the input terminal of the switching module 62, the output terminal of the switching module 62 is connected to the vibration sampling module 3 and the step-down module 63, and the step-down module 63 is also connected to the edge computing module 4 and the communication module 5.

[0050] The DC power supply 61 can be an existing 24V DC power supply, which powers the vibration sampling module 3 and each vibration sensor 2. The switch module 62 can include an existing illuminated self-locking reset switch. When this switch is pressed, the button light illuminates, indicating that the DC power supply 61 is outputting normally; if the switch is pressed again, the button light goes out, indicating that the DC power supply 61 is disconnected. The step-down module 63 can be an existing switching power supply module, capable of converting 24V DC voltage to 12V DC voltage, which powers the edge computing module 4 and the communication module 5. Additionally, as... Figure 2 As shown, the step-down module 63 can be installed inside the housing 1.

[0051] It should be noted that the first operational amplifier U3A and the second operational amplifier U3B can be powered by an existing dual power supply module capable of providing ±15V DC voltage, and the dual power supply module can draw power from the buck module 63, which will not be described in detail here.

[0052] In some embodiments, such as Figure 2 As shown, the housing 1 may include a first side surface 11. The first side surface 11 has a plurality of first interfaces 12, the number of which corresponds to the number of vibration sensors 2. The input end of each first interface is connected to each vibration sensor 2 via a cable, and the output end of each first interface is connected to a vibration sampling module 3. Specifically, the output end of each first interface is connected to each signal sampling unit 31 to send the vibration signal to the corresponding signal sampling unit 31. The first interface 12 may be a BNC interface.

[0053] like Figure 6 As shown, when the number of first interfaces 12 is 10 and the first interfaces 12 are BNC interfaces, the distribution of each first interface 12 on the first side 11 can be as follows: two rows of first interfaces 12 are arranged from top to bottom, and for each row, 5 first interfaces 12 are arranged at equal intervals from left to right; the center distance between two adjacent first interfaces 12 on the left and right is 34mm, and the center distance between two adjacent first interfaces 12 on the top and bottom is 34mm; the inner diameter of each first interface 12 is 9.5mm and the outer diameter is 12.74mm.

[0054] In some embodiments, such as Figure 1 The portable vibration measurement device for nuclear power plants may further include a human-machine interface module 7 connected to the edge computing module 4 for human-machine interaction with the measurement device. The human-machine interface module 7 may include a mouse, keyboard, and monitor, allowing staff to input operating commands on-site via the mouse and keyboard, and observe the spectrum of vibration signals on the monitor.

[0055] In some embodiments, such as Figure 2 As shown, the second side 13 is provided with a second interface group 14 that connects to the edge computing module 4 and the human-computer interaction module 7. The second interface group 14 includes, but is not limited to, at least one power supply interface 141, at least one network interface 142, at least one USB interface 143, and at least one video communication interface. In addition, the switch module 62 can also be provided on the second side 13 for convenient operation.

[0056] Furthermore, such as Figure 2 As shown, there can be two power supply interfaces 141, which can be DC interfaces for connecting to a DC power supply 61. There can be one network interface 142, which can be an RJ45 interface. There can be two USB interfaces 143 for connecting a mouse and keyboard. There can be one video communication interface, which is an HDMI interface for connecting to a monitor.

[0057] like Figure 2 As shown, the housing 1 can be rectangular, with a length of 250mm to 400mm, a width of 204mm, and a height of 80mm, giving it the advantage of small size. Furthermore, the first side 11 and the second side 13 face away from each other. Understandably, the vibration sampling module 3, the edge computing module 4, the communication module 5, and the switch module 62 and step-down module 63 in the power supply module 6 are all housed within the housing 1, effectively improving the device's portability. Moreover, the corresponding interfaces on the sides of the housing 1 facilitate the insertion and removal of devices such as the vibration sensor 2 and the human-machine interface module 7, simplifying operation.

[0058] Understandably, this utility model can help staff monitor vibration information at multiple designated locations in real time. It is simple to operate and easy to carry, solving the problems of traditional offline vibration measurement instruments having fewer acquisition channels, traditional vibration measurement devices being large in size, inconvenient to carry, cumbersome to operate, unable to be remotely monitored, having great limitations, and high costs. It has the advantage of wide applicability.

[0059] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A portable vibration measuring device for nuclear power plants, characterized in that, include: Shell (1); Multiple vibration sensors (2) are used to be installed on mechanical equipment to sense the vibration information of the mechanical equipment and output vibration signals. A vibration sampling module (3) is disposed inside the housing (1), connected to each of the vibration sensors (2), and used to convert the vibration signal. An edge computing module (4) is located inside the housing (1), connected to the vibration sampling module (3), and is used to receive the converted vibration signal and output the edge computing signal. A communication module (5) disposed within the housing (1), connected to the edge computing module (4), and used for communication connection with the monitoring platform (10) to transmit the edge computing signal to the monitoring platform (10); and A power supply module (6) is connected to the vibration sampling module (3), the edge computing module (4), the communication module (5), and each of the vibration sensors (2).

2. The portable vibration measuring device for nuclear power plants according to claim 1, characterized in that, The vibration sampling module (3) includes a plurality of signal sampling units (31) with the same number as the plurality of vibration sensors (2) and connected one-to-one with each of the vibration sensors (2), and an analog-to-digital conversion unit (32) connected to each of the signal sampling units (31); the analog-to-digital conversion unit (32) is also connected to the edge computing module (4).

3. The portable vibration measuring device for nuclear power plants according to claim 2, characterized in that, Each of the signal sampling units (31) includes a control switch P3, a protection tube VD3, a forty-first resistor R41, a forty-fifth resistor R45, a forty-seventh resistor R47, a second diode VD2, a fourth diode VD4, a thirty-ninth resistor R39, a twenty-first capacitor C21, a first operational amplifier U3A, a forty-sixth resistor R46, a twenty-fourth capacitor C24, a forty-second resistor R42, a fortieth resistor R40, a second operational amplifier U3B, a forty-fourth resistor R44, and a forty-third resistor R43; One end of the control switch P3 is connected to the power supply module (6), and the other end of the control switch P3 is connected to the positive output terminal of the vibration sensor (2), the first end of the protection tube VD3, and the first end of the forty-first resistor R41. The second end of the forty-first resistor R41 is connected to the cathode of the second diode VD2, the second end of the thirty-ninth resistor R39, the second end of the twenty-first capacitor C21, and the positive input terminal of the first operational amplifier U3A. The second end of the protection tube VD3 is connected to the negative output terminal of the vibration sensor (2), the first end of the forty-fifth resistor R45, and the first end of the forty-seventh resistor R47. The second end of the forty-fifth resistor R45 is connected to the cathode of the fourth diode VD4, the first end of the forty-sixth resistor R46, the first end of the twenty-fourth capacitor C24, and the first... The negative input terminal of the first operational amplifier U3A is connected to the second terminal of the forty-sixth resistor R46, the second terminal of the twenty-fourth capacitor C24, and the first terminal of the forty-second resistor R42. The second terminal of the forty-second resistor R42 is connected to the first terminal of the fortyth resistor R40 and the negative input terminal of the second operational amplifier U3B. The positive input terminal of the second operational amplifier U3B is grounded through the forty-fourth resistor R44. The output terminal of the second operational amplifier U3B is connected to the second terminal of the fortyth resistor R40 and the first terminal of the forty-third resistor R43. The second terminal of the forty-third resistor R43 is connected to the edge computing module (4). The first terminal of the thirty-ninth resistor R39, the first terminal of the twenty-first capacitor C21, and the second terminal of the forty-seventh resistor R47 are grounded.

4. The portable vibration measuring device for nuclear power plants according to claim 1, characterized in that, The power supply module (6) includes a DC power supply (61), a switching module (62), and a step-down module (63). The output terminal of the DC power supply (61) is connected to the input terminal of the switch module (62), the output terminal of the switch module (62) is connected to the vibration sampling module (3) and the step-down module (63), and the step-down module (63) is also connected to the edge computing module (4) and the communication module (5).

5. The portable vibration measuring device for nuclear power plants according to claim 1, characterized in that, The communication module (5) includes a WiFi communication module connected to the edge computing module (4) and used for communication with the monitoring platform (10).

6. The portable vibration measuring device for nuclear power plants according to claim 1, characterized in that, The number of vibration sensors (2) is 10; and / or the vibration sensors (2) include acceleration sensors.

7. The portable vibration measuring device for nuclear power plants according to any one of claims 1 to 6, characterized in that, The housing (1) includes a first side (11); The first side (11) is provided with a plurality of first interfaces (12) in the same number as the plurality of vibration sensors (2). The input end of each first interface is connected to each vibration sensor (2) one-to-one via a cable, and the output end of each first interface is connected to the vibration sampling module (3).

8. The portable vibration measuring device for nuclear power plants according to claim 7, characterized in that, It also includes a human-computer interaction module (7) connected to the edge computing module (4) for human-computer interaction with the measuring device.

9. The portable vibration measuring device for nuclear power plants according to claim 8, characterized in that, The second side (13) of the housing (1) is provided with a second interface group (14) that is connected to the edge computing module (4) and the human-computer interaction module (7). The second interface group (14) includes, but is not limited to, at least one power supply interface, at least one network interface, at least one USB interface and at least one video communication interface.

10. The portable vibration measuring device for nuclear power plants according to claim 9, characterized in that, The human-computer interaction module (7) includes a mouse, keyboard and monitor.

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