Ultrahigh frequency signal amplifier

Abstract

The utility model discloses an ultrahigh frequency signal amplifier, which relates to the technical field of partial discharge detection and comprises a shell, a signal processing module, a channel module, a power supply module, a synchronization module, a clock module and a network module. The channel module comprises an input channel and an output channel, the input channel and the output channel are correspondingly arranged on the two sides of the shell, one end of the input channel is connected with the ultrahigh frequency sensor, and one end of the output channel is connected with an oscilloscope or other signal acquisition equipment to transmit the amplified, filtered and denoised partial discharge signals. According to the utility model, through the arrangement of a multi-input-output channel connection structure, a plurality of ultrahigh frequency sensors can be connected at the same time, multi-point synchronous monitoring is provided, more complex and comprehensive data analysis is facilitated, problems and faults are rapidly positioned, the system operation condition is comprehensively known, the detection efficiency is improved, the coverage range is expanded, the flexibility and reliability are higher, and the reliability is higher. And the intelligent level of the monitoring system is improved.

Description

Technical Field

[0001] This utility model relates to the field of partial discharge detection technology, and more specifically to the field of ultra-high frequency signal amplifier technology. Background Technology

[0002] Ultra-high frequency (UHF) signal amplifiers play a crucial role in the maintenance and monitoring of power systems. Partial discharge is an early indicator of insulation failure in power equipment, and UHF signal amplifiers are used to amplify the weak electromagnetic wave signals generated by partial discharge for easier detection and analysis.

[0003] Patent publication number CN219758420U, entitled "Multi-channel UHF signal amplifier," discloses the following: A multi-channel UHF signal amplifier includes: a housing and channel components, a power supply component, and a chip component disposed on the housing; the input and output terminals of the channel components are respectively disposed on both sides of the housing; the chip component is disposed inside the housing and connected to the channel components; the power supply component is disposed on the same side as the channel components and connected to the chip component; the channel components include: a first channel, a second channel, and a third channel arranged sequentially at intervals; the first channel includes: a first input interface, a first output interface, and a first fixing component; the first input interface and the first output interface are symmetrically disposed on both sides of the housing and fixedly connected to the housing by the first fixing component. This invention, through its multi-input / output interface structure, can amplify the UHF signal from the sensor by 20dB in partial discharge testing at the test site or in the laboratory, thus providing auxiliary support for partial discharge testing. It has a simple structure and is easy to operate.

[0004] Patent publication number CN102628916B, entitled "Online Partial Discharge Location System for Transformers Based on UHF Signals," discloses the following: An online partial discharge location system for transformers based on UHF signals includes a UHF receiving antenna, which is connected to a bandpass filter via a coaxial cable. The bandpass filter is connected to an amplifier, which is connected to a digital oscilloscope. The digital oscilloscope is connected to an industrial control computer. The industrial control computer has a monitoring system processing module for monitoring, real-time display, calculating the location of partial discharges, and storing historical data. This invention's system can perform real-time online partial discharge monitoring, has high positioning accuracy, relatively low cost, is easy to debug, and has a fast calculation speed.

[0005] The aforementioned patents and existing ultra-high frequency signal amplifiers cannot provide sufficient gain, have poor performance within a specific frequency range, are susceptible to external interference, cannot perform long-term multi-channel continuous monitoring, and cover relatively few wide-range frequency signals that may be generated by partial discharge. Utility Model Content

[0006] The purpose of this invention is to provide an ultra-high frequency signal amplifier to solve the technical problems of signal amplifiers being unable to perform long-term multi-channel continuous monitoring and covering the limited frequency signals that may be generated by partial discharge.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] This utility model provides an ultra-high frequency signal amplifier, including a housing, a signal processing module, a channel module, a power supply module, a synchronization module, a clock module, a network module;

[0009] The signal processing module is located inside the housing. The signal processing module amplifies, filters, and stores the partial discharge signal collected by the UHF sensor.

[0010] The channel module is connected to the signal processing module and is used to connect the UHF sensor and oscilloscope for processing. The channel module includes an input channel and an output channel, which are respectively arranged on both sides of the housing. One end of the input channel is connected to the UHF sensor, and the other end of the output channel is connected to the oscilloscope or other signal acquisition equipment to transmit the partial discharge signal after amplification, filtering and noise reduction.

[0011] The power module is used to supply power to other modules;

[0012] The synchronization module is connected to the signal processing module to ensure synchronous sampling of the UHF sensor and improve the accuracy of the measurement results;

[0013] The clock module is connected to the signal processing module and is used to achieve synchronization with an oscilloscope or other external acquisition devices.

[0014] The network module connects to the signal processing module for data transmission and storage.

[0015] In one embodiment, the input channel includes a first input interface, a second input interface, a third input interface, a fourth input interface, a fifth input interface, a sixth input interface, a seventh input interface, and an eighth input interface, which are horizontally and equally spaced on the same side of the housing.

[0016] In one embodiment, the output channel includes a first output interface, a second output interface, a third output interface, a fourth output interface, a fifth output interface, a sixth output interface, a seventh output interface, and an eighth output interface that are horizontally and equally spaced on the other side of the housing.

[0017] The first output interface is positioned opposite to the first input interface and connected to the signal processing module; the second output interface is positioned opposite to the second input interface and connected to the signal processing module; the third output interface is positioned opposite to the third input interface and connected to the signal processing module; the fourth output interface is positioned opposite to the fourth input interface and connected to the signal processing module; the fifth output interface is positioned opposite to the fifth input interface and connected to the signal processing module; the sixth output interface is positioned opposite to the sixth input interface and connected to the signal processing module; the seventh output interface is positioned opposite to the seventh input interface and connected to the signal processing module; and the eighth output interface is positioned opposite to the eighth input interface and connected to the signal processing module.

[0018] In one embodiment, the power module includes an adjacent power socket and a grounding component; the power socket and grounding component are disposed on the same side of the housing as the input channel, and the power socket is connected to a power plug for supplying power to the device.

[0019] In one embodiment, the synchronization module includes a first synchronization interface and a second synchronization interface arranged vertically. The first synchronization interface and the second synchronization interface are disposed on the same side of the housing as the input channel, and are connected to field equipment to realize the synchronization of partial discharge signal sampling.

[0020] In one embodiment, the clock module includes a reference synchronization interface, which is disposed on the same side of the housing as the input channel, and is used to provide an external reference signal or synchronization signal.

[0021] Specifically, in some applications, signal amplifiers need to be synchronized with the sampling clock or trigger signal of external devices; in cases where precise control of amplifier gain or phase is required, a reference synchronization interface can be used to input a reference signal to calibrate the amplifier's performance; in multi-channel signal processing systems, a reference synchronization interface can be used to receive a common reference signal to ensure that the signals of each channel are precisely aligned; a reference synchronization interface can be used to receive a clock signal to ensure that the amplifier's sampling and processing are synchronized with the system clock.

[0022] In one embodiment, a USB interface 30 is also included. The USB interface 30 is disposed on the same side of the housing as the input channel and is connected to a signal acquisition and detection device to realize data storage and transmission.

[0023] In one embodiment, a status indicator light is also provided on the housing. The status indicator light is located on the same side of the housing as the input channel and displays the channel status and whether there is a connection problem.

[0024] In one embodiment, a fixing plate for fixing the connection extends from one side of the housing to both ends, and the fixing plate is disposed on the housing on the same side as the output channel.

[0025] In one embodiment, fixing holes are symmetrically formed on the fixing plate.

[0026] The beneficial effects of this utility model are as follows:

[0027] This invention, through its multi-input / output channel connection structure, can simultaneously connect multiple ultra-high frequency sensors, providing multi-point synchronous monitoring. This facilitates more complex and comprehensive data analysis, rapid problem and fault location, and a comprehensive understanding of system operation, improving detection efficiency and coverage. It also offers greater flexibility and reliability, enhancing the intelligence level of partial discharge detection. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of one side of the input channel of this utility model;

[0030] Figure 2 This is a three-dimensional structural diagram of one side of the output channel of this utility model;

[0031] Figure 3 This is a top view of the present invention;

[0032] Figure 4 This is a front view of one side of the input channel of this utility model;

[0033] Figure 5 This is a front view of one side of the output channel of this utility model;

[0034] Reference numerals: 1. Housing; 2. Channel module; 3. Power module; 4. Synchronization module; 5. Clock module; 6. Network module; 7. Input channel; 8. Output channel; 9. First input interface; 10. Second input interface; 11. Third input interface; 12. Fourth input interface; 13. Fifth input interface; 14. Sixth input interface; 15. Seventh input interface; 16. Eighth input interface; 17. First output interface; 18. Second output interface; 19. Third output interface; 20. Fourth output interface; 21. Fifth output interface; 22. Sixth output interface; 23. Seventh output interface; 24. Eighth output interface; 25. Power socket; 26. Grounding component; 27. First synchronization interface; 28. Second synchronization interface; 29. ​​Reference synchronization interface; 30. USB interface; 31. Status indicator light; 32. Mounting plate; 33. Mounting hole. Detailed Implementation

[0035] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Example 1

[0040] like Figures 1 to 5 As shown in the figure, this embodiment provides an ultra-high frequency signal amplifier of the present invention, comprising:

[0041] Housing 1, signal processing module, channel module 2, power supply module 3, synchronization module 4, clock module 5, and network module 6;

[0042] The signal processing module is located inside the housing 1. The signal processing module amplifies, filters, and stores the partial discharge signal collected by the UHF sensor.

[0043] Channel module 2 is connected to the signal processing module and is used to connect the UHF sensor and oscilloscope for processing. Channel module 2 includes input channel 7 and output channel 8, which are respectively arranged on both sides of housing 1. One end of input channel 7 is connected to the UHF sensor, and one end of output channel 8 is connected to the oscilloscope or other signal acquisition equipment to transmit the partial discharge signal after amplification, filtering and noise reduction.

[0044] Power module 3 is used to supply power to other modules;

[0045] Synchronization module 4 is connected to the signal processing module to ensure synchronous sampling of the UHF sensor and improve the accuracy of measurement results;

[0046] Clock module 5 is connected to the signal processing module and is used to achieve synchronization with an oscilloscope or other external acquisition devices.

[0047] Network module 6 connects to the signal processing module for data transmission and storage.

[0048] Example 1

[0049] like Figures 1 to 5 As shown in the figure, this embodiment provides an ultra-high frequency signal amplifier of the present invention, comprising:

[0050] Housing 1, signal processing module, channel module 2, power supply module 3, synchronization module 4, clock module 5, and network module 6;

[0051] The signal processing module is located inside the housing 1. The signal processing module amplifies, filters, and stores the partial discharge signal collected by the UHF sensor.

[0052] Channel module 2 is connected to the signal processing module and is used to connect the UHF sensor and oscilloscope for processing. Channel module 2 includes input channel 7 and output channel 8, which are respectively arranged on both sides of housing 1. One end of input channel 7 is connected to the UHF sensor, and one end of output channel 8 is connected to the oscilloscope or other signal acquisition equipment to transmit the partial discharge signal after amplification, filtering and noise reduction.

[0053] Power module 3 is used to supply power to other modules;

[0054] Synchronization module 4 is connected to the signal processing module to ensure synchronous sampling of the UHF sensor and improve the accuracy of measurement results;

[0055] Clock module 5 is connected to the signal processing module and is used to achieve synchronization with an oscilloscope or other external acquisition devices.

[0056] Network module 6 connects to the signal processing module for data transmission and storage.

[0057] The input channel 7 includes a first input interface 9, a second input interface 10, a third input interface 11, a fourth input interface 12, a fifth input interface 13, a sixth input interface 14, a seventh input interface 15, and an eighth input interface 16, which are horizontally and equally spaced on the same side of the housing 1.

[0058] The output channel 8 includes a first output interface 17, a second output interface 18, a third output interface 19, a fourth output interface 20, a fifth output interface 21, a sixth output interface 22, a seventh output interface 23 and an eighth output interface 24, which are horizontally and equally spaced on the other side of the housing 1.

[0059] The first output interface 17 is positioned opposite to the first input interface 9 and connected to the signal processing module; the second output interface 18 is positioned opposite to the second input interface 10 and connected to the signal processing module; the third output interface 19 is positioned opposite to the third input interface 11 and connected to the signal processing module; the fourth output interface 20 is positioned opposite to the fourth input interface 12 and connected to the signal processing module; the fifth output interface 21 is positioned opposite to the fifth input interface 13 and connected to the signal processing module; the sixth output interface 22 is positioned opposite to the sixth input interface 14 and connected to the signal processing module; the seventh output interface 23 is positioned opposite to the seventh input interface 15 and connected to the signal processing module; and the eighth output interface 24 is positioned opposite to the eighth input interface 16 and connected to the signal processing module.

[0060] Example 3

[0061] This embodiment is a further optimization based on embodiment 2, specifically:

[0062] The power module 3 includes a power socket 25 and a grounding component 26 arranged adjacent to each other; the power socket 25 and the grounding component 26 are arranged on the same side of the housing 1 as the input channel 7, and the power socket 25 is connected to a power plug for supplying power to the device.

[0063] The synchronization module 4 includes a first synchronization interface 27 and a second synchronization interface 28 arranged vertically. The first synchronization interface 27 and the second synchronization interface 28 are arranged on the same side of the housing 1 as the input channel 7, and are connected to field equipment to realize the synchronization of partial discharge signal sampling.

[0064] Example 4

[0065] This embodiment is a further optimization based on embodiment 3, specifically:

[0066] The clock module 5 includes a reference synchronization interface 29, which is mounted on the same side of the housing 1 as the input channel 7, and is used to provide an external reference signal or synchronization signal.

[0067] Specifically, in some applications, the signal amplifier needs to be synchronized with the sampling clock or trigger signal of an external device; in cases where precise control of amplifier gain or phase is required, the reference synchronization interface 29 can input a reference signal to calibrate the amplifier's performance; in a multi-channel signal processing system, the reference synchronization interface 29 can be used to receive a common reference signal to ensure that the signals of each channel are precisely aligned; the reference synchronization interface 29 can be used to receive a clock signal to ensure that the amplifier's sampling and processing are synchronized with the system clock.

[0068] Example 5

[0069] This embodiment is a further optimization based on embodiment 4, specifically:

[0070] It also includes a USB interface 30, which is located on the same side of the housing 1 as the input channel 7, and is used to connect to signal acquisition and detection equipment to realize data storage and transmission.

[0071] The housing 1 is also equipped with a status indicator light 31. The status indicator light 31 is located on the same side of the housing 1 as the input channel 7. The status indicator light 31 displays the channel status and whether there is a connection problem.

[0072] One side of the housing 1 extends to both ends with a fixing plate 32 for fixing and connecting. The fixing plate 32 is set on the housing 1 on the same side as the output channel 8.

[0073] Fixing holes 33 are symmetrically provided on the fixing plate 32.

Claims

1. A UHF signal amplifier, characterized by The utility model relates to a signal acquisition device for partial discharge detection, comprising: a shell (1); a signal processing module arranged in the shell (1), which amplifies, filters and stores data for partial discharge signals collected by an ultrahigh frequency sensor; a channel module (2) connected to the signal processing module, which connects the ultrahigh frequency sensor and an oscilloscope and performs; the channel module (2) includes an input channel (7) and an output channel (8), which are arranged on opposite sides of the shell (1); one end of the input channel (7) is connected to the ultrahigh frequency sensor, and one end of the output channel (8) is connected to the oscilloscope or other signal acquisition equipment to transmit the partial discharge signals after amplification, filtering and noise reduction; a power module (3) for powering other modules; a synchronization module (4) connected to the signal processing module to ensure synchronous sampling of the ultrahigh frequency sensor and improve the accuracy of measurement results; a clock module (5) connected to the signal processing module for connection with the oscilloscope or other external acquisition equipment to achieve synchronization; a network module (6) connected to the signal processing module for data transmission and storage.

2. A microwave signal amplifier according to claim 1, wherein The input channel (7) includes first, second, third, fourth, fifth, sixth, seventh and eighth input interfaces (9, 10, 11, 12, 13, 14, 15 and 16) arranged horizontally and equidistantly on the same side of the shell (1).

3. A microwave signal amplifier according to claim 2, wherein The output channel (8) includes first, second, third, fourth, fifth, sixth, seventh and eighth output interfaces (17, 18, 19, 20, 21, 22, 23 and 24) arranged horizontally and equidistantly on the other side of the shell (1). The first output interface (17) is arranged opposite to the first input interface (9) and connected to the signal processing module, the second output interface (18) is arranged opposite to the second input interface (10) and connected to the signal processing module, the third output interface (19) is arranged opposite to the third input interface (11) and connected to the signal processing module, the fourth output interface (20) is arranged opposite to the fourth input interface (12) and connected to the signal processing module, the fifth output interface (21) is arranged opposite to the fifth input interface (13) and connected to the signal processing module, the sixth output interface (22) is arranged opposite to the sixth input interface (14) and connected to the signal processing module, the seventh output interface (23) is arranged opposite to the seventh input interface (15) and connected to the signal processing module, and the eighth output interface (24) is arranged opposite to the eighth input interface (16) and connected to the signal processing module.

4. A microwave signal amplifier according to claim 3, wherein The power module (3) comprises adjacent power sockets (25) and grounding components (26); the power sockets (25) and the grounding components (26) are arranged on the same side of the shell (1) as the input channel (7), and the power sockets (25) are connected with power plugs for supplying power to equipment.

5. The ultra-high frequency signal amplifier according to claim 3, wherein The synchronization module (4) comprises first and second synchronization interfaces (27) and (28) arranged in an up-down manner; the first and second synchronization interfaces are arranged on the same side of the shell (1) as the input channel (7) and are connected with field equipment to realize synchronization of partial discharge signal sampling.

6. A microwave signal amplifier according to claim 5, wherein The clock module (5) comprises a reference synchronization interface (29) arranged on the same side of the shell (1) as the input channel (7) and used for providing an external reference signal or a synchronization signal.

7. The microwave signal amplifier of claim 1, wherein Further, a USB interface (30) is arranged on the same side of the shell (1) as the input channel (7) and is connected with signal acquisition and detection equipment to realize data storage and transmission.

8. The microwave signal amplifier of claim 1, wherein, The shell (1) is further provided with a state indicating lamp (31) arranged on the same side of the shell (1) as the input channel (7); the state indicating lamp (31) displays a channel state and whether there is a connection problem.

9. The microwave signal amplifier of claim 1, wherein, One side of the shell (1) extends towards two ends and is provided with a fixing plate (32) for fixing connection; the fixing plate (32) is arranged on the same side of the shell (1) as the output channel (8).

10. The microwave signal amplifier of claim 9, wherein, Symmetrical fixing holes (33) are formed in the fixing plate (32).

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