Multifunctional intelligent near-field electromagnetic field amplitude-phase visualization test system

Abstract

The invention discloses a multifunctional intelligent near-field electromagnetic field amplitude-phase visual test system, and relates to the technical field of near-field electromagnetic field amplitude-phase test of integrated circuits, and the system comprises a sensor module which is a magnetic field and electric field fused inductive probe and can accurately measure the amplitude and phase of a near-field electromagnetic field; the signal processing module is in signal connection with the sensor module and is used for performing amplification, filtering, analog-to-digital conversion and the like on the signals acquired by the sensor module, so that the quality and the precision of the signals are improved; the upper computer system is connected with the signal processing module and comprises a data analysis module, a control module and a display module; according to the invention, the integrated excitation source system is adopted, so that two parameters of amplitude and phase of a near-field electromagnetic field of a product can be tested at the same time; by adopting the simulation base station and the communication system, the test of the near-field state of the electromagnetic field of the tested product in the communication state can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of near-field electromagnetic field amplitude and phase testing of integrated circuits, and in particular relates to a multifunctional intelligent near-field electromagnetic field amplitude and phase visualization testing system. Background Art

[0002] With the rapid development of electronic technology, the number of various electronic devices is increasing, and the impact of electromagnetic fields on electronic devices has attracted more and more attention. In the design, development and production of electronic equipment, it is necessary to accurately test the amplitude and phase of the near-field electromagnetic field to ensure the performance and reliability of the electronic equipment. However, the existing electromagnetic field test system has the following shortcomings: 1. Existing technology can only be used to test one parameter, amplitude or phase; 2. Existing technology cannot be used for near-field electromagnetic field testing of products with communication modules under normal communication conditions; 3. The software in the prior art does not provide the function of 3D visualization of electromagnetic field amplitude and phase distribution; 4. The existing technology can only test either the magnetic field or the electric field, and cannot perform synchronous testing of the electric field and the magnetic field at the same time.

[0003] Based on this, we designed a multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system. Summary of the invention

[0004] The purpose of the present invention is to provide a multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system to solve the problems of single function, low test accuracy and complex operation of existing test systems.

[0005] The multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system of the present invention mainly includes the following parts: A sensor module, which is a fusion sensing probe of magnetic field and electric field and can accurately measure the amplitude and phase of the near-field electromagnetic field; A signal processing module, which is connected to the sensor module signal, performs amplification, filtering, analog-to-digital conversion and other processing on the signal collected by the sensor module to improve the quality and accuracy of the signal; A host computer system, which is connected to the signal processing module and includes a data analysis module, a control module and a display module; The data analysis module uses advanced data analysis algorithms to analyze and process the data output by the signal processing module and calculate the amplitude and phase of the near-field electromagnetic field. The data analysis module can also present the test results in a visual manner, making it convenient for users to observe and analyze the distribution of the electromagnetic field.

[0006] The control module is responsible for the control and coordination of the entire test system, including the arrangement of the sensor modules, the parameter adjustment of the signal processing module, and the operation of the data analysis module.

[0007] The display module uses an intuitive graphical interface to present the test results in a visual manner, making it convenient for users to observe and analyze the distribution of the electromagnetic field; the display module can also provide operation prompts and help information to facilitate users to use the test system.

[0008] Preferably, it also includes a signal excitation and tracking source, one end of which interacts with the signal of the product under test, and the other end is connected to the host computer system, which can meet the simultaneous testing of the amplitude and phase parameters of the product's near-field electromagnetic field.

[0009] Preferably, it also includes a four-axis mechanical control system, and the magnetic field and electric field fusion sensing probe is installed on the four-axis mechanical control system, which can automatically realize the omnidirectional scanning of the product under test by the magnetic field and electric field fusion sensing probe.

[0010] Preferably, it also includes a simulation base station and a communication module, and the simulation base station is connected to the product under test through the communication module. When the product under test has communication requirements, it can ensure that the electromagnetic field analysis of the product under test is performed under normal communication conditions.

[0011] Preferably, the sensor modules can be arranged at a single point or multiple points as required to meet the requirements of different test scenarios.

[0012] Preferably, the signal processing module can also automatically adjust the test parameters according to the frequency range and intensity of the electromagnetic field being measured to improve the test efficiency and accuracy.

[0013] Preferably, the control module can also communicate with external devices to achieve data transmission and storage.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention adopts an integrated excitation source system, which can meet the simultaneous testing of the amplitude and phase parameters of the product's near-field electromagnetic field.

[0015] 2. The present invention adopts a simulated base station and a communication system, which can realize the test of the near-field state of the electromagnetic field of the tested product in the communication state.

[0016] 3. The data analysis module used in the present invention can realize the visualization application and analysis of the amplitude and phase distribution of the electromagnetic field, providing data support for subsequent electromagnetic compatibility testing.

[0017] 4. The present invention integrates a four-axis mechanical control system, which can automatically realize the all-round scanning of the product under test by the near-field probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For examples, see Figure 1 , a multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system, including: The sensor module is a fusion sensing probe of the magnetic field and the electric field, which can accurately measure the amplitude and phase of the near-field electromagnetic field; the sensor module can be arranged in a single point or multiple points as needed to meet the needs of different test scenarios.

[0021] The signal processing module is connected to the sensor module signal, and performs amplification, filtering, analog-to-digital conversion and other processing on the signal collected by the sensor module to improve the quality and accuracy of the signal; the signal processing module can also automatically adjust the test parameters according to the frequency range and intensity of the electromagnetic field being measured to improve the test efficiency and accuracy.

[0022] A host computer system, which is connected to the signal processing module and includes a data analysis module, a control module and a display module; The data analysis module uses advanced data analysis algorithms to analyze and process the data output by the signal processing module and calculate the amplitude and phase of the near-field electromagnetic field. The data analysis module can also present the test results in a visual manner, making it convenient for users to observe and analyze the distribution of the electromagnetic field.

[0023] The control module is responsible for the control and coordination of the entire test system, including the arrangement of the sensor module, the parameter adjustment of the signal processing module, and the operation of the data analysis module; the control module can also communicate with external devices to achieve data transmission and storage.

[0024] The display module uses an intuitive graphical interface to present the test results in a visual manner, making it convenient for users to observe and analyze the distribution of the electromagnetic field; the display module can also provide operation prompts and help information to facilitate users to use the test system.

[0025] It also includes a signal excitation and tracking source. One end of the signal excitation and tracking source interacts with the signal of the product under test, and the other end is connected to the host computer system, which can meet the simultaneous testing of the amplitude and phase parameters of the product's near-field electromagnetic field.

[0026] It also includes a four-axis mechanical control system, and the magnetic field and electric field fusion induction probe is installed on the four-axis mechanical control system, which can automatically realize the omnidirectional scanning of the product under test by the magnetic field and electric field fusion induction probe.

[0027] It also includes a simulation base station and a communication module. The simulation base station is connected to the product under test through the communication module. When the product under test has communication requirements, it can ensure that the electromagnetic field analysis of the product under test is performed under normal communication conditions: The method for the data analysis module to calculate the amplitude and phase of the near-field electromagnetic field is as follows: The near-field electromagnetic field amplitude is calculated using Maxwell's equations.

[0028] Maxwell's equations are the fundamental set of equations that describe electromagnetic fields, including the divergence and curl equations for the electric and magnetic fields. For near-field situations, the amplitude of the electromagnetic field can be determined by solving a specific form of Maxwell's equations.

[0029] For time-harmonic electromagnetic fields, the complex form of Maxwell's equations can be used, where the electric field strength and magnetic field strength It can be expressed as and , is the angular frequency, It's time. and is the complex amplitude.

[0030] By solving Maxwell's equations, the complex amplitudes of the electric and magnetic fields can be obtained, and the amplitude of the electromagnetic field can be calculated.

[0031] Calculation of the phase of near-field electromagnetic fields Using complex numbers, as mentioned above, the time-harmonic electromagnetic field can be expressed in complex form. The phase of the electric and magnetic fields can be determined by the phase of the complex amplitudes.

[0032] For the electric field strength ,in is the phase of the electric field. Similarly, the magnetic field strength , is the phase of the magnetic field.

[0033] The phase can be calculated from the argument of the complex amplitude, i.e. and .

[0034] This device uses advanced sensor technology and data analysis algorithms to accurately measure the amplitude and phase of near-field electromagnetic fields, improving test accuracy and efficiency.

[0035] Working principle of the present invention: Through the signal excitation and tracking source, the signal interacts with the product under test, and the near-field probe senses the field strength data through the signal analyzer. The near-field probe uses a fusion sensing probe of the magnetic field and the electric field, which can simultaneously sense the electromagnetic field state of the near field. At the same time, the analog base station and communication module are integrated. When the product under test has communication requirements, it can ensure that the electromagnetic field analysis of the product under test can be carried out under normal communication conditions. The test system integrates a four-axis mechanical control system, which can automatically realize the full-scale scanning of the product under test by the near-field probe, increasing the accuracy of the test. Finally, a visual electromagnetic field distribution cloud map is formed through the software algorithm, and the test results are presented in a visual way through an intuitive graphical interface, which is convenient for users to observe and analyze the distribution of the electromagnetic field.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system, characterized in that: include: A sensor module, which is a fusion sensing probe of magnetic field and electric field and can accurately measure the amplitude and phase of the near-field electromagnetic field; A signal processing module, which is connected to the sensor module signal, performs amplification, filtering, analog-to-digital conversion and other processing on the signal collected by the sensor module to improve the quality and accuracy of the signal; The host computer module, the host computer system is connected to the signal processing module, including a data analysis module, a control module and a display module; The data analysis module uses advanced data analysis algorithms to analyze and process the data output by the signal processing module to calculate the amplitude and phase of the near-field electromagnetic field; The control module is responsible for the control and coordination of the entire test system, including the arrangement of the sensor modules, the parameter adjustment of the signal processing module, and the operation of the data analysis module; The display module uses an intuitive graphical interface to present the test results in a visual manner, making it convenient for users to observe and analyze the distribution of the electromagnetic field.

2. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: It also includes a signal excitation and tracking source. One end of the signal excitation and tracking source interacts with the signal of the product under test, and the other end is connected to the host computer system, which can meet the simultaneous testing of the amplitude and phase parameters of the product's near-field electromagnetic field.

3. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: It also includes a four-axis mechanical control system, and the magnetic field and electric field fusion induction probe is installed on the four-axis mechanical control system, which can automatically realize the omnidirectional scanning of the product under test by the magnetic field and electric field fusion induction probe.

4. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: It also includes a simulation base station and a communication module. The simulation base station is connected to the product under test through the communication module. When the product under test has communication requirements, it can ensure that the electromagnetic field analysis of the product under test is performed under normal communication conditions.

5. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: The sensor modules can be arranged in single-point or multi-point configurations as required to meet the requirements of different test scenarios.

6. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: The signal processing module can also automatically adjust the test parameters according to the frequency range and intensity of the electromagnetic field being tested to improve the test efficiency and accuracy.

7. A multifunctional intelligent near-field electromagnetic field amplitude and phase visualization test system according to claim 1, characterized in that: The control module can also communicate with external devices to achieve data transmission and storage.

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