Multi-channel transient electromagnetic interference measuring device capable of parallel measurement and electromagnetic compatibility measuring equipment
Patent Information
- Application Number
- CN202521438701.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-07-10
AI Technical Summary
与一般电子系统相比，大功率设备的电磁兼容性更复杂，在大功率工况下往往产生较强的电网瞬态电磁传导干扰和空间瞬态电磁场辐射干扰
[0016]本申请实施例的第一方面提供的可并行测量的多通道瞬态电磁干扰测量装置，通过包括第一传感器模块、第二传感器模块、多通道低频信号采集处理模块、多通道高频信号采集处理模块和控制模块；第一传感器模块的数据输出端与多通道低频信号采集处理模块的数据输入端连接，第二传感器模块的数据输出端与多通道高频信号采集处理模块的数据输入端连接，采集处理模块的输出端与控制模块的数据输入端连接；第一传感器模块用于获取电网传导干扰信号、低频磁场辐射干扰信号和低频电场辐射干扰信号；第二传感器模块用于获取高频电场辐射干扰信号。通过第一传感器模块处理低频干扰和第二传感器模块处理高频干扰，结合多通道信号采集处理模块与控制模块的连接，实现了电网传导干扰、低频磁场辐射干扰、低频电场辐射干扰以及高频电场辐射干扰的并行采集，显著提升了瞬态电磁干扰测量的响应速度和效率，避免了传统扫频方法的时间延迟。采用多通道设计，可并行完成2通道电网传导干扰、2通道低频磁场、2通道低频电场、2通道高频电场干扰数据的采集处理。在电磁兼容现场测试中，通过一次测量，可同时获取受试设备2个测量位置、三类电磁兼容项目数据，显著提高测量效率，降低大功率设备电磁兼容现场测试的时间成本和运行成本。适用于大功率设备瞬态电磁干扰信号的快速、并行测量。
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Figure CN224651451U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electromagnetic compatibility measurement technology, specifically to a multi-channel transient electromagnetic interference measurement device and electromagnetic compatibility measurement equipment capable of parallel measurement. Background Technology
[0002] Currently, in electromagnetic compatibility (EMC) testing of equipment and systems, measurements of conducted interference from power grids and near-field electromagnetic radiation interference in space are generally based on frequency domain methods. This involves using a measurement receiver to progressively sweep frequencies within the test band. Taking the current EMC measurement standard GJB 151B-2013, "Electromagnetic Emissions and Susceptibility Requirements and Measurements for Military Equipment and Subsystems," as an example, the conducted emissions items CE101 and CE102 from power lines, the radiated emissions item RE101 from magnetic fields, and the radiated emissions item RE102 from electric fields all employ frequency domain methods. Frequency domain methods are technically mature, offer high measurement accuracy, and are suitable for steady-state electromagnetic interference signals. However, the working principle of frequency domain methods dictates that they require a certain scanning time, making them unsuitable for transient electromagnetic interference signals with short durations and large bandwidths.
[0003] With the rapid development of high-power power electronics technology and the maturity of related devices, high-power equipment with high voltage and high current characteristics is being used more and more. Compared with general electronic systems, the electromagnetic compatibility (EMC) of high-power equipment is more complex. Under high-power operating conditions, it often generates strong transient electromagnetic conducted interference from the power grid and transient electromagnetic field radiated interference in space. In addition, high-power equipment / systems are large in scale and have high operating costs. They require many EMC test items, operating conditions, and measurement locations. Using conventional frequency domain methods combined with sequential testing at each location is time-consuming and costly.
[0004] Therefore, there is a need for a fast, parallel measurement device that can be applied to transient electromagnetic interference signals from high-power equipment. Summary of the Invention
[0005] In view of this, embodiments of this application provide a multi-channel transient electromagnetic interference measurement device and an electromagnetic compatibility measurement device capable of parallel measurement, for realizing rapid and parallel measurement of transient electromagnetic interference signals of high-power equipment.
[0006] The first aspect of this application provides a multi-channel transient electromagnetic interference measurement device capable of parallel measurement, including a first sensor module, a second sensor module, a multi-channel low-frequency signal acquisition and processing module, a multi-channel high-frequency signal acquisition and processing module, and a control module; The data output terminal of the first sensor module is connected to the data input terminal of the multi-channel low-frequency signal acquisition and processing module, the data output terminal of the second sensor module is connected to the data input terminal of the multi-channel high-frequency signal acquisition and processing module, and the output terminals of both the multi-channel low-frequency signal acquisition and processing module and the multi-channel high-frequency signal acquisition and processing module are connected to the data input terminal of the control module. The first sensor module includes at least two current probes, at least two low-frequency magnetic field receiving antennas, and at least two low-frequency electric field receiving antennas. Each of the current probes, the low-frequency magnetic field receiving antennas, and the low-frequency electric field receiving antennas is connected to a data sampling channel of the multi-channel low-frequency signal acquisition and processing module. The second sensor module includes at least two high-frequency electric field receiving antennas, each of which is connected to a data sampling channel of the multi-channel high-frequency signal acquisition and processing module.
[0007] In one embodiment, the system further includes a storage module, wherein the output terminals of the multi-channel low-frequency signal acquisition and processing module and the multi-channel high-frequency signal acquisition and processing module are both connected to the data input terminal of the storage module, and the data input terminal of the control module is connected to the data output terminal of the storage module.
[0008] In one embodiment, a display module is further included, wherein the data output terminal of the control module is connected to the data input terminal of the display module.
[0009] In one embodiment, the first sensor module includes at least two current probes, at least two low-frequency magnetic field receiving antennas, and at least two low-frequency electric field receiving antennas, each of which is connected to a data sampling channel of the multi-channel low-frequency signal acquisition and processing module.
[0010] In one embodiment, the current probe is a Solar 9258 current probe, the low-frequency magnetic field receiving antenna is a FESP 5133 magnetic loop antenna, the low-frequency electric field receiving antenna is a VAMP 9243 active rod antenna, and the multi-channel low-frequency signal acquisition and processing module is a PXIe-5171 board.
[0011] In one embodiment, the second sensor module includes at least two high-frequency electric field receiving antennas, each of which is connected to a data sampling channel of the multi-channel high-frequency signal acquisition and processing module.
[0012] In one embodiment, the high-frequency electric field receiving antenna is a UBAA9144 or BBUK9139 broadband biconical antenna, and the multi-channel high-frequency signal acquisition and processing module is a PXIe-5785 board.
[0013] In one embodiment, the multi-channel low-frequency signal acquisition and processing module, the multi-channel high-frequency signal acquisition and processing module, the control module, and the storage module are housed in an integrated chassis and powered by the integrated chassis. The integrated chassis has multiple slots, and the multi-channel low-frequency signal acquisition and processing module, the multi-channel high-frequency signal acquisition and processing module, the control module, and the storage module are each assembled in one slot of the integrated chassis.
[0014] In one embodiment, the integrated chassis is a PXIe-1092 3U standardized chassis.
[0015] The second aspect of this application provides an electromagnetic compatibility measurement device, including the multi-channel transient electromagnetic interference measurement device capable of parallel measurement provided in the first aspect of this application.
[0016] The first aspect of this application provides a multi-channel transient electromagnetic interference measurement device capable of parallel measurement. This device includes a first sensor module, a second sensor module, a multi-channel low-frequency signal acquisition and processing module, a multi-channel high-frequency signal acquisition and processing module, and a control module. The data output terminal of the first sensor module is connected to the data input terminal of the multi-channel low-frequency signal acquisition and processing module, the data output terminal of the second sensor module is connected to the data input terminal of the multi-channel high-frequency signal acquisition and processing module, and the output terminal of the acquisition and processing module is connected to the data input terminal of the control module. The first sensor module acquires conducted interference signals from the power grid, low-frequency magnetic field radiation interference signals, and low-frequency electric field radiation interference signals. The second sensor module acquires high-frequency electric field radiation interference signals. By processing low-frequency interference with the first sensor module and high-frequency interference with the second sensor module, and by connecting the multi-channel signal acquisition and processing module with the control module, parallel acquisition of conducted interference from the power grid, low-frequency magnetic field radiation interference, low-frequency electric field radiation interference, and high-frequency electric field radiation interference is achieved. This significantly improves the response speed and efficiency of transient electromagnetic interference measurement and avoids the time delay of traditional frequency sweeping methods. Employing a multi-channel design, it can simultaneously acquire and process data for 2 channels of conducted interference from the power grid, 2 channels of low-frequency magnetic fields, 2 channels of low-frequency electric fields, and 2 channels of high-frequency electric field interference. In electromagnetic compatibility (EMC) field testing, a single measurement can simultaneously acquire data from two measurement locations and three categories of EMC parameters for the device under test, significantly improving measurement efficiency and reducing the time and operating costs of EMC field testing for high-power equipment. It is suitable for rapid, parallel measurement of transient electromagnetic interference signals from high-power equipment.
[0017] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a multi-channel transient electromagnetic interference measurement device capable of parallel measurement provided in an embodiment of this application; Figure 2 This is a schematic diagram illustrating the working principle of a multi-channel transient electromagnetic interference measuring device capable of parallel measurement according to an embodiment of this application; In the diagram: 1-First sensor module, 11-Current probe, 12-Low-frequency magnetic field receiving antenna, 13-Low-frequency electric field receiving antenna, 2-Second sensor module, 21-High-frequency electric field receiving antenna, 3-Multi-channel low-frequency signal acquisition and processing module, 4-Multi-channel high-frequency signal acquisition and processing module, 5-Control module, 6-Storage module, 7-Display module, 100-Integrated chassis. Detailed Implementation
[0020] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.
[0021] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.
[0022] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0023] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0025] like Figure 1 As shown in the figure, the present application provides a multi-channel transient electromagnetic interference measurement device that can be measured in parallel, including a first sensor module 1, a second sensor module 2, a multi-channel low-frequency signal acquisition and processing module 3, a multi-channel high-frequency signal acquisition and processing module 4, and a control module 5; The data output terminal of the first sensor module 1 is connected to the data input terminal of the multi-channel low-frequency signal acquisition and processing module 3, and the data output terminal of the second sensor module 2 is connected to the data input terminal of the multi-channel high-frequency signal acquisition and processing module 4. The output terminals of both the multi-channel low-frequency signal acquisition and processing module 3 and the multi-channel high-frequency signal acquisition and processing module 4 are connected to the data input terminal of the control module 5 via the PXI bus. The first sensor module 1 is used to acquire power grid conducted interference signals, low-frequency magnetic field radiated interference signals, and low-frequency electric field radiated interference signals. The second sensor module 2 is used to acquire high-frequency electric field radiation interference signals.
[0026] In the application, the multi-channel low-frequency signal acquisition and processing module contains 8 channels, of which: The first and second channels are respectively connected to the current probes; The third and fourth channels are respectively connected to the low-frequency magnetic field receiving antenna; The fifth and sixth channels are connected to the low-frequency electric field receiving antenna, respectively. Channels 7 and 8 are backup channels.
[0027] In the application, the multi-channel high-frequency signal acquisition and processing module contains two channels, which are connected to the high-frequency electric field receiving antenna respectively.
[0028] This application embodiment uses a first sensor module to process low-frequency interference and a second sensor module to process high-frequency interference. By combining a multi-channel signal acquisition and processing module with a control module, parallel acquisition of conducted interference from the power grid, low-frequency magnetic field radiation interference, low-frequency electric field radiation interference, and high-frequency electric field radiation interference is achieved. This significantly improves the response speed and efficiency of transient electromagnetic interference measurement and avoids the time delay of traditional frequency sweeping methods. The multi-channel design allows for the parallel acquisition and processing of two channels of conducted interference from the power grid, two channels of low-frequency magnetic field interference, two channels of low-frequency electric field interference, and two channels of high-frequency electric field interference. In electromagnetic compatibility (EMC) field testing, a single measurement can simultaneously acquire data from two measurement locations and three types of EMC items for the device under test, significantly improving measurement efficiency and reducing the time and operating costs of EMC field testing for high-power equipment. It is suitable for rapid, parallel measurement of transient EMC signals from high-power equipment.
[0029] This application embodiment, through the coordinated use of high and low frequency acquisition and processing modules, can complete the acquisition of time-domain data and spectrum analysis of a wideband electromagnetic interference signal from 25Hz to 1GHz in a single measurement. Compared with conventional electromagnetic compatibility frequency sweep testing methods, it has a fast response speed and short testing time, and has significant advantages, especially for short-time transient electromagnetic interference measurement.
[0030] The embodiments of this application are easily expandable. By copying and adding low-frequency signal acquisition and processing modules and high-frequency signal acquisition and processing modules on the existing basis, the number of measurement channels can be easily expanded, the parallel measurement capability of electromagnetic compatibility testing can be improved, and the testing time can be reduced. This has significant advantages for on-site electromagnetic compatibility measurement of large and complex systems under test.
[0031] In one embodiment, the system further includes a storage module 6, and the output terminals of the multi-channel low-frequency signal acquisition and processing module 3 and the multi-channel high-frequency signal acquisition and processing module 4 are all connected to the data input terminal of the storage module 6 via a PXI bus. The data input terminal of the control module 5 is connected to the data output terminal of the storage module 6 via a PXI bus.
[0032] In this embodiment, the data is directly stored from the multi-channel low-frequency and high-frequency signal acquisition and processing modules through the storage module and read through the control module. This ensures the real-time saving and rapid retrieval of massive time-frequency domain data, solves the problem of transient signal loss, and enhances the integrity of the data and the reliability of subsequent analysis.
[0033] In one embodiment, a display module 7 is also included, and the data output terminal of the control module 5 is connected to the data input terminal of the display module 7.
[0034] This embodiment connects the display module and the control module, enabling a direct display of the analysis results output by the control module, such as time-frequency domain waveforms and spectrum diagrams. This facilitates real-time monitoring and decision-making by users on-site, and improves the operational convenience and human-computer interaction efficiency of the measuring device.
[0035] In one embodiment, the current probe 11 is a Solar 9258 current probe, the low-frequency magnetic field receiving antenna 12 is a FESP 5133 magnetic ring antenna, the low-frequency electric field receiving antenna 13 is a VAMP 9243 active rod antenna, and the multi-channel low-frequency signal acquisition and processing module 3 is a PXIe-5171 board.
[0036] In one embodiment, the high-frequency electric field receiving antenna 21 is a UBAA9144 or BBUK9139 broadband biconical antenna, and the multi-channel high-frequency signal acquisition and processing module 4 is a PXIe-5785 board.
[0037] In one embodiment, the multi-channel low-frequency signal acquisition and processing module 3, the multi-channel high-frequency signal acquisition and processing module 4, the control module 5, and the storage module 6 are disposed in an integrated chassis 100 and powered by the integrated chassis 100. The integrated chassis 100 has multiple slots, and the multi-channel low-frequency signal acquisition and processing module 3, the multi-channel high-frequency signal acquisition and processing module 4, the control module 5, and the storage module 6 are respectively assembled in one slot of the integrated chassis 100.
[0038] This application embodiment integrates a multi-channel low-frequency signal acquisition and processing module, a high-frequency signal acquisition and processing module, a control module, and a storage module into a single chassis and supplies them with power. The chassis slot design makes the module assembly compact, reduces external interference and system size, and improves portability and overall noise immunity.
[0039] In one embodiment, the integrated chassis 100 is a PXIe-1092 3U standardized chassis.
[0040] In this application, the integrated chassis uses the NI PXIe-1092 3U standardized chassis, which contains nine card slots. This measurement device uses four of these slots to install the multi-channel low-frequency signal acquisition and processing module, the multi-channel high-frequency signal acquisition and processing module, the data storage module, and the control module. The remaining slots are used for expansion based on parallel measurement requirements.
[0041] In the application, the multi-channel low-frequency signal acquisition and processing module uses an NI PXIe-5171 board, which contains 8 synchronous sampling channels. Two channels are each connected to a Solar 9258 current probe to acquire and process 25Hz to 50MHz power grid conducted interference signals at two measurement locations in parallel. Two channels are each connected to a FESP 5133 magnetic loop antenna to acquire and process 25Hz to 100kHz space magnetic field radiated interference signals at two measurement locations in parallel. Two channels are each connected to a VAMP9243 active pole antenna to acquire and process 10kHz to 30MHz low-frequency electric field radiated interference signals at two measurement locations in parallel. The remaining two channels are used for functional expansion or replacement in case of failure.
[0042] In the application, the multi-channel high-frequency signal acquisition and processing module uses an NI PXIe-5785 board, which contains two synchronous sampling channels, each connected to a UBAA9144 / BBUK9139 broadband biconical antenna, to acquire and process high-frequency electric field radiation interference signals from two measurement locations in parallel, ranging from 200MHz to 1GHz.
[0043] In the application, the data storage module uses an NI PXIe-8267 board with a storage capacity of 4TB and a continuous throughput of 5GB / s, which is used to complete the rapid storage and retrieval of large-capacity electromagnetic interference measurement data.
[0044] In this application, the control module uses the NI PXIe-8842 embedded controller to control the acquisition of low-frequency and high-frequency signals, as well as the data storage of the data storage module. The display module connects to the output port of the control module and can use a general-purpose display to show the results of time-frequency domain measurement data processing.
[0045] In applications, using the aforementioned 8-channel PXIe-5171 board, 2-channel PXIe-5785 board, large-capacity data storage module PXIe-8267, and two current probes, two magnetic loop antennas, two sub-mast antennas, and two broadband biconical antennas as front-end sensors, parallel measurement of conducted interference signals from the power grid (25Hz~50MHz) and radiated interference data from low-frequency magnetic fields (25Hz~100kHz) and spatial electric fields (10kHz~1GHz) at two measurement locations can be achieved. The measurement efficiency is more than ten times that of conventional frequency domain scanning measurement devices. Since the PXIe-1092 3U standardized chassis has five spare card slots, the parallel measurement capability can be further expanded by copying and adding signal acquisition and processing boards and sensor modules. Specifically, adding one PXIe-5171 board and one PXIe-5785 board doubles the parallel measurement capability, enabling parallel measurement of conducted interference signals from the power grid and radiated interference data from low-frequency magnetic fields and spatial electric fields at four measurement locations.
[0046] This application provides an electromagnetic compatibility measurement device, which includes a multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in any of the above embodiments.
[0047] like Figure 2 As shown, the working principle of this device is as follows: The multi-channel low-frequency signal acquisition and processing module 3 and the multi-channel high-frequency signal acquisition and processing module 4 acquire data from the corresponding sensors in real time. To quickly capture transient electromagnetic interference signals, both modules are equipped with acquisition trigger amplitude thresholds. When a time-domain signal from the first or second sensor is detected to be less than the amplitude threshold set within the corresponding acquisition and processing module, no processing is performed. When a time-domain signal from the first or second sensor is detected to exceed the amplitude threshold set within the corresponding acquisition and processing module, the acquired time-domain data is sent to the control module. The control module performs a Fast Fourier Transform on the time-domain data to obtain the frequency-domain data of the electromagnetic interference. This data is then compared with electromagnetic compatibility standard limits to determine whether the limits are met. Under the control of PXIe-8842, PXIe-5171 and PXIe-5785 transmit the processed time-domain data and frequency-domain data to the data storage module PXIe-8267 via the PXI bus for storage. PXIe-8842 can read the data stored in PXIe-8267 for analysis and display the results through the display module.
[0048] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.
Claims
1. A multi-channel transient electromagnetic interference measurement device capable of parallel measurement, characterized in that, It includes a first sensor module (1), a second sensor module (2), a multi-channel low-frequency signal acquisition and processing module (3), a multi-channel high-frequency signal acquisition and processing module (4), and a control module (5); The data output terminal of the first sensor module (1) is connected to the data input terminal of the multi-channel low-frequency signal acquisition and processing module (3), the data output terminal of the second sensor module (2) is connected to the data input terminal of the multi-channel high-frequency signal acquisition and processing module (4), and the output terminals of the multi-channel low-frequency signal acquisition and processing module (3) and the multi-channel high-frequency signal acquisition and processing module (4) are both connected to the data input terminal of the control module (5). The first sensor module (1) includes at least two current probes (11), at least two low-frequency magnetic field receiving antennas (12) and at least two low-frequency electric field receiving antennas (13), and each of the current probes (11), the low-frequency magnetic field receiving antennas (12) and the low-frequency electric field receiving antennas (13) is connected to a data sampling channel of the multi-channel low-frequency signal acquisition and processing module (3); The second sensor module (2) includes at least two high-frequency electric field receiving antennas (21), each of which is connected to a data sampling channel of the multi-channel high-frequency signal acquisition and processing module (4).
2. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 1, characterized in that, It also includes a storage module (6), the output terminals of the multi-channel low-frequency signal acquisition and processing module (3) and the multi-channel high-frequency signal acquisition and processing module (4) are both connected to the data input terminal of the storage module (6), and the data input terminal of the control module (5) is connected to the data output terminal of the storage module (6).
3. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 1, characterized in that, It also includes a display module (7), and the data output terminal of the control module (5) is connected to the data input terminal of the display module (7).
4. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 1, characterized in that, The current probe (11) is a Solar 9258 current probe (11), the low-frequency magnetic field receiving antenna (12) is a FESP 5133 magnetic ring antenna, the low-frequency electric field receiving antenna (13) is a VAMP 9243 active rod antenna, and the multi-channel low-frequency signal acquisition and processing module (3) is a PXIe-5171 board.
5. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 1, characterized in that, The high-frequency electric field receiving antenna (21) is a UBAA9144 or BBUK9139 broadband biconical antenna, and the multi-channel high-frequency signal acquisition and processing module (4) is a PXIe-5785 board.
6. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 2, characterized in that, The multi-channel low-frequency signal acquisition and processing module (3), the multi-channel high-frequency signal acquisition and processing module (4), the control module (5), and the storage module (6) are housed in an integrated chassis (100) and powered by the integrated chassis (100). The integrated chassis (100) has multiple slots, and the multi-channel low-frequency signal acquisition and processing module (3), the multi-channel high-frequency signal acquisition and processing module (4), the control module (5), and the storage module (6) are respectively assembled in one slot of the integrated chassis (100).
7. The multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in claim 6, characterized in that, The integrated chassis (100) is a PXIe-1092 3U standardized chassis.
8. An electromagnetic compatibility measuring device, characterized in that, It includes a multi-channel transient electromagnetic interference measurement device capable of parallel measurement as described in any one of claims 1-7.