Electromagnetic compatibility test tool system suitable for near-field test

Abstract

The utility model relates to the field of analytical chemistry detection, in particular to an electromagnetic compatibility test tool system suitable for near-field test, which comprises a to-be-tested sample EUT system, an electromagnetic compatibility test platform and an electromagnetic compatibility test data processing and communication system, the electromagnetic compatibility test platform comprises a test platform base, a test platform stand column, a test platform rotary table, at least one mechanical arm assembly and a coordinable table board. The test platform base is connected with the test platform rotary table through the test platform stand column, the test platform rotary table is provided with the coordinable table top, and the mechanical arm assembly is arranged on the tunable top face. According to the utility model, the rotary table, the mechanical arm probe and the like are adopted for multi-dimensional accurate detection and positioning, a building block type multi-element combination test from a circuit board level to a unit component to a liquid chromatograph and a liquid chromatography-mass spectrometry system unit module can be realized, an electromagnetic compatibility radiation emission performance test is realized in the design and development stage of a product, the research and development rectification period is shortened, and the production cost is reduced. And effective inspection is carried out before products are put on the market.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of analytical chemistry detection, concretely to an electromagnetic compatibility test tooling system suitable for near field test. BACKGROUND

[0002] With the advantages of fast analysis speed, high sensitivity, high accuracy, strong specificity and simultaneous analysis of multiple indexes, liquid chromatography-mass spectrometry technology is gradually applied to LC-MS in vitro diagnostic detection products, and is mainly used for the detection of vitamins, drugs and drug metabolites, hormones, immunosuppressants, etc. At the same time, it also contains reagents for detecting other physiological, biochemical or immune function indicators, and is mainly used for in vitro quantitative detection of the content of specific measured substances in human serum, plasma or blood spots, etc. as an auxiliary diagnostic device.

[0003] The liquid chromatography-mass spectrometry system mainly consists of a high-performance liquid chromatograph, an interface ion source, a mass analyzer, a vacuum system and a computer data processing system. The mixed sample to be tested is injected by an automatic sampler in the high-performance liquid chromatography system, separated by a chromatographic column in the chromatographic column incubator, and the separated components flowing out of the chromatographic system are ionized in the ion source of the mass spectrometer in turn, and then the ions are focused in the mass analyzer, separated according to the mass-to-charge ratio, and the ion signals after separation are converted into electrical signals and transmitted to the data processing system, realizing qualitative and quantitative analysis of the sample to be tested.

[0004] The circuit hardware system in the high-performance liquid chromatography system and the liquid chromatography-mass spectrometry system usually consists of radio frequency chips, storage chips, sensors, amplifiers, antennas and various electronic components distributed in different functional positions in the internal cavity of the instrument product. When the product is normal or fully loaded, electromagnetic interference will be generated by the circuit board and transmitted through the interconnection between the boards and the sensors, and the electromagnetic radiation signals will be formed by superposition and reflection, especially in the high-speed integrated communication system of the high-performance liquid chromatography system or the liquid chromatography-mass spectrometry system, which may cause electromagnetic interference in the communication between the unit modules and the system.

[0005] Therefore, there is an urgent need for an electromagnetic compatibility test tooling system suitable for near field test. UTILITY MODEL CONTENT

[0006] In order to overcome the problems in the prior art, the utility model aims to provide an electromagnetic compatibility test tooling system suitable for near field test.

[0007] To achieve the above object, the utility model provides the following technical scheme: A kind of electromagnetic compatibility test tooling system suitable for near-field test, including the sample EUT system to be measured, electromagnetic compatibility test platform and electromagnetic compatibility test data processing and communication system;The sample EUT system to be measured is arranged on the electromagnetic compatibility test platform, and the electromagnetic compatibility test data processing and communication system is connected with the sample EUT system to be measured and electromagnetic compatibility test platform communication;

[0008] The sample EUT system to be measured is measured object, and the sample EUT system to be measured is in full load operation state during testing.

[0009] The electromagnetic compatibility test platform is used for fixing the sample EUT system to be measured and realizing electromagnetic compatibility radiation emission performance test.

[0010] The electromagnetic compatibility test data processing and communication system is used for control analysis and communication of each equipment on the sample EUT system to be measured and electromagnetic compatibility test platform.

[0011] The utility model further sets up: the electromagnetic compatibility test platform includes test platform base, test platform stand, test platform rotary table, at least one mechanical arm assembly and coordinatable table top;The test platform base is connected with the test platform rotary table by test platform stand, and the coordinatable table top is arranged on the test platform rotary table, and the coordinatable table top includes tunable top surface and tunable bottom surface, and the tunable top surface and tunable bottom surface are connected by a plurality of support adjustable knobs;The mechanical arm assembly is arranged on the tunable top surface.

[0012] The utility model further sets up: the mechanical arm assembly is at least 5 degrees of freedom mechanical arm assembly.

[0013] The utility model further sets up: the mechanical arm assembly includes mechanical arm base, mechanical arm stand, mechanical arm shoulder, mechanical arm elbow, mechanical arm wrist, mechanical arm end effector and mechanical arm probe;The mechanical arm base is installed on the tunable top surface, and the mechanical arm base is sequentially connected with mechanical arm stand, mechanical arm shoulder, mechanical arm elbow, mechanical arm wrist and mechanical arm end effector by conductive slip ring structure, and the mechanical arm probe is arranged on the mechanical arm end effector.

[0014] It should be noted that the internal space wiring of the mechanical arm assembly is distributed in the complete shielding cavity, and the number and orientation of the mechanical arm assembly are fixed in combination with the structural characteristics of the sample EUT system to be measured.

[0015] The utility model further sets up: electromagnetic compatibility test platform still includes the product table of being measured, the product table of being measured inlaying test platform turntable, the product table of being measured bottom still is provided with lifting mechanism, the product table of being measured still is provided with scale.

[0016] The product table of being measured can be automatically lifted through the lifting mechanism, and is used for providing a mechanical arm probe detection space when the bottom of the product EUT to be measured has a ventilation hole or a magnetic leakage structure.

[0017] The utility model further sets up: test platform base still includes stepping motor, motor driver, reduction gearbox, the stepping motor is connected with motor driver, and the output of stepping motor is connected the input of reduction gearbox, and the output of reduction gearbox passes through the coupling and is connected the bottom of test platform turntable.

[0018] The utility model further sets up: test platform stand is hollow structure, and the output of stepping motor passes through test platform stand and is connected the rotating disc, and the gas-liquid electric slip ring is still provided in test platform stand, and the gas-liquid electric slip ring is used for fixing the pipeline or circuit of the sample EUT system of being measured.

[0019] The utility model further sets up: test platform base is provided with the gyro wheel, and the gyro wheel is provided with gyro wheel locking structure.

[0020] The utility model further sets up: adjustable top surface still is provided with level and turntable power socket.

[0021] The utility model further sets up: electromagnetic compatibility test data processing and communication system includes electromagnetic compatibility test platform software system, and electromagnetic compatibility test platform software system realizes data acquisition, record, storage, calibration, maintenance alarm function.

[0022] Summarizing above, the beneficial effects of the above technical scheme of the utility model are as follows:

[0023] This invention employs an automatic turntable for precise positioning, while a robotic arm probe provides multi-dimensional, precise detection and positioning. It enables modular, multi-faceted testing from the circuit board level to individual components and then to the liquid chromatograph and liquid chromatography-mass spectrometry (LC-MS) system modules. During the product design and development input phase, it allows for pre-testing and preliminary testing of electromagnetic compatibility (EMC) radiation emission performance, shortening the R&D and rectification cycle. Furthermore, once the product reaches mass production, batch sampling or inspection of EMC radiation emission performance can be conducted, providing effective verification before the product is released to the market. This invention provides quality control standards for EMC testing tooling for manufacturers of liquid chromatography and LC-MS systems, improving the reliability of EMC and electrical safety performance of liquid chromatography and LC-MS products. It also provides a fundamental guarantee for the expansion and integration of liquid chromatography and LC-MS products into the medical device, pharmaceutical, and even military industries. Simultaneously, the multi-channel data acquisition and processing methods save on manpower data recording and maintenance costs, achieving cost reduction and efficiency improvement for enterprises. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic compatibility testing fixture system described in Example 1.

[0026] Figure 2 This is a top view of an electromagnetic compatibility testing fixture system.

[0027] Figure 3 This is a schematic diagram of the test platform base.

[0028] Figure 4 Schematic diagram of robotic arm components.

[0029] Figure 5 This is a schematic diagram of the electromagnetic compatibility testing fixture system described in Example 2.

[0030] Figure 6 This is a schematic diagram of the electromagnetic compatibility testing fixture system described in Example 3.

[0031] Figure 7 This is a schematic diagram of a liquid chromatography-mass spectrometry (LC-MS) system.

[0032] Figure 8 This is a schematic diagram of the hardware system of the electromagnetic compatibility testing fixture.

[0033] The meanings of the structural markings in the attached diagram are as follows:

[0034] 1-test platform base, 2-test platform column, 3-test platform turntable, 4-sample table, 5-test platform tunable bottom surface, 6-test platform tunable top surface, 7-first robotic arm assembly, 8-second robotic arm assembly, 9-EUT system, 10-turntable power socket, 11-gas-liquid power slip ring, 12-test platform center shaft, 13-ruler, 14-power socket, 15-test platform gas interface, 16-test platform liquid interface, 17-level meter;

[0035] A1-robotic arm base, A2-robotic arm rotating column, A3-robotic arm shoulder, A4-robotic arm elbow, A5-robotic arm wrist, A6-robotic arm end effector, A7-robotic arm probe;

[0036] 31-liquid chromatography system solvent tray, 32-liquid chromatography system autosampler, 33-liquid chromatography system high-pressure constant-flow pump, 34-liquid chromatography system column thermostat, 35-mass spectrometer, 36-sample solvent bottle. DETAILED DESCRIPTION

[0037] In order to make the personnel in the art better understand the technical scheme of the utility model, the technical scheme of the utility model is described clearly and completely below in combination with the drawings of the utility model. Based on the embodiments in the utility model, other similar embodiments obtained by the personnel in the art without creative labor should belong to the protection scope of the utility model.

[0038] The utility model is further described below in combination with the drawings and preferred embodiments.

[0039] Embodiment 1:

[0040] As Figures 1-4 shown, a kind of electromagnetic compatibility test tooling system suitable for near-field test of the preferred embodiment of the utility model, including EUT system 9 to be measured, electromagnetic compatibility test platform and electromagnetic compatibility test data processing and communication system;The EUT system 9 to be measured is arranged on the electromagnetic compatibility test platform, and the electromagnetic compatibility test data processing and communication system is connected with EUT system 9 to be measured and electromagnetic compatibility test platform communication;The electromagnetic compatibility test data processing and communication system is used for the control analysis of each equipment on EUT system 9 to be measured, electromagnetic compatibility test platform and communication.

[0041] The electromagnetic compatibility test platform comprises a test platform base 1, a test platform column 2, a test platform turntable 3, at least one mechanical arm assembly and a coordinatable table top; the test platform base 1 is connected with the test platform turntable 3 through the test platform column 2, the coordinatable table top is arranged on the test platform turntable 3, the coordinatable table top comprises a tunable top surface 6 and a tunable bottom surface 5, the tunable top surface 6 and the tunable bottom surface 5 are connected through a plurality of support adjustable knobs; the mechanical arm assembly is arranged on the tunable top surface 6, and a turntable power socket is further arranged on the tunable top surface 6.

[0042] The test platform base is provided with an external power socket connected with an external power supply system, a test platform gas path interface 15 and a test platform liquid path interface 16 for external connection, and a level 17 is inlaid on the tunable top surface of the test platform, and the horizontal position is calibrated by observing the bubble position of the level 17.

[0043] The electromagnetic compatibility test platform further comprises a to-be-tested product table 4, the to-be-tested product table 4 is embedded in the test platform turntable 3, and a lifting mechanism is further arranged at the bottom of the to-be-tested product table 4; a scale 13 is further arranged on the to-be-tested product table 4. The to-be-tested product table 4 can be automatically lifted through the lifting mechanism, and is used for providing a detection space for the mechanical arm probe A7 when the to-be-tested sample EUT system 9 has a ventilation hole or a magnetic leakage structure at the bottom.

[0044] The mechanical arm assembly comprises a mechanical arm base A1, a mechanical arm column A2, a mechanical arm shoulder A3, a mechanical arm elbow A4, a mechanical arm wrist A5, a mechanical arm end effector A6 and a mechanical arm probe A7; the mechanical arm base A1 is installed on the tunable top surface 6, the mechanical arm base A1 is connected with the mechanical arm column A2, the mechanical arm shoulder A3, the mechanical arm elbow A4, the mechanical arm wrist A5 and the mechanical arm end effector A6 in sequence through a conductive slip ring structure, and the mechanical arm probe A7 is arranged on the mechanical arm end effector A6.

[0045] Two mechanical arm assemblies are arranged in the embodiment, and are fixed at diagonal lines of the tunable top surface 6 in a magnetic attraction mode; the mechanical arm assembly adopts a mechanical arm with five degrees of freedom, the maximum load of the mechanical arm can reach 0.5 kg, the arm span is 630 mm, the mechanical arm is completely stretched by 100%, the joint moves at a speed of 183° / s, the mechanical arm column A2 can rotate freely, and the joint rotation range is 360°.

[0046] The mechanical arm end effector A6 can be controlled to move to any position in the Cartesian space by the mechanical arm stand A2, the mechanical arm shoulder A3, simulating a humanoid arm for rotation and inclination. The mechanical arm elbow A4, the mechanical arm wrist A5 and the mechanical arm end effector A6 form a humanoid wrist coupled together by three degrees of freedom. The interaction of the five degrees of freedom enables the electromagnetic compatibility detection mechanical arm to effectively detect within the effective working area. The mechanical arm end effector A6 is a clamping end effector that can hold the mechanical arm probe A7 at the end of the mechanical arm to reach the designated detection position. During the rectification of near-field electromagnetic detection, it is necessary to keep the settings of various devices in the near-field scanning system unchanged. If the probe, cable or amplifier is replaced, the electrical signal data of the standard calibration piece need to be measured again to obtain the correction coefficient of the system.

[0047] It should be noted that the internal space wiring of the mechanical arm assembly is distributed in the complete shielding cavity, and the number and position of the mechanical arm assembly are fixed according to the structural characteristics of the to-be-tested sample EUT system 9.

[0048] The test platform base 1 further comprises a stepping motor, a motor driver and a reduction box. The stepping motor is connected with the motor driver, the output end of the stepping motor is connected with the input end of the reduction box, and the output end of the reduction box is connected with the bottom of the test platform turntable 3 through a shaft coupling. The test platform stand 2 is a hollow structure, the output end of the stepping motor extends through the test platform stand 2 and is connected with the test platform turntable 3. The test platform stand 2 is further provided with a gas-liquid-electric slip ring 11, which is used to fix the pipeline or circuit of the to-be-tested sample EUT system 9. The test platform turntable 3 further comprises a test platform center shaft 12, and the stator of the gas-liquid-electric slip ring 11 is fixed on the test platform center shaft 12. The rotor is fixed on the rotating shaft of the direct-drive stepping motor through the center position of the test platform turntable 3.

[0049] Before the electromagnetic compatibility test tool test, the horizontal calibration of the test platform is needed, the to-be-tested sample EUT system 9 is placed on the test platform to-be-tested sample table 4, the quantitative placement of the to-be-tested sample EUT system position is referred to the scale 13, the test platform base 1 is combined with the use scene and can be fixed or movable, the movable test platform is provided with four locking type universal wheels below the base. The test platform base 1 is embedded with a direct drive type stepping motor, the step angle of the stepping motor is 1.8°, the speed reduction ratio of the speed reducer is 20:1, the working frequency is set at 500Hz, the rotating speed is 0.125r / s, the test platform stand 2 integrates the stepping motor shaft, the shaft coupling, the speed reducer and the gas-liquid electric slip ring 11 in the inside, the gas-liquid electric slip ring 11 is fixed at the motor shaft, the shaft coupling is connected with the test platform turntable 3 through the motor shaft. The gas path in the gas-liquid electric slip ring 11 is connected with the gas path part of the mass spectrometer accessory vacuum pump, the liquid path in the gas-liquid electric slip ring 11 is connected with the waste liquid pipeline of the liquid phase system, the circuit in the gas-liquid electric slip ring 11 is connected with the AC power cable of the to-be-tested sample EUT system 9. The shaft coupling fixes the test platform turntable 3 and the motor shaft, the millimeter level scale 13 is arranged on the surface of the test platform to-be-tested sample table 4, so as to ensure that the to-be-tested sample EUT system is placed at the center position of the to-be-tested sample table 4.

[0050] The electromagnetic compatibility test data processing and communication system comprises an electromagnetic compatibility test platform software system, which realizes data acquisition, recording, storage, calibration, maintenance alarm functions.

[0051] As Figure 8As shown, the CPU control circuit hardware system of the tooling system is installed inside the test platform base 1, the control system CPU is responsible for all electrical functions and communication of the tooling system, the power supply part of the control system is a switching power supply, the control system CPU working frequency and communication frequency are distributed through the clock generator, at the same time, the control system CPU is responsible for controlling the 360° rotation of the test platform turntable 3 by the direct drive stepper motor, the direct drive stepper motor is integrated with the driver, and real-time feedback of motor speed, angle and other positioning information is provided, the mechanical arm assembly is composed of an embedded micro control mainboard, each joint of the mechanical arm is attached with a stepper motor and a motor driver, the driving program of the mechanical arm is installed through the host computer software, the control algorithm of the mechanical arm is applied, the embedded micro control mainboard of the mechanical arm converts the command signal of the host computer into a control signal, the corresponding torque is output through the control board, and the angular displacement and angular velocity data of the motor shaft are fed back to the control unit. The control system CPU can calculate the joint angle in real time according to the control algorithm, and convert it into an analog voltage signal, which is output to the driver, and the driver drives the motor to rotate, thereby controlling the movement of the mechanical arm. Through the host computer data scanning acquisition software, the frequency spectrum range and scanning accuracy of the electromagnetic compatibility near-field scanning are set, the electromagnetic compatibility test platform and the automatic mechanical arm system are initialized, the scanning work process is entered, the mechanical arm assembly clamps different mechanical arm probes A7 to quickly panoramic scan the to-be-tested sample EUT system 9, the scanning is performed for 3 times, the data is recorded, the specific position of the interference source is locked, and then local accurate positioning scanning is performed. After the scanning is completed, the specific position of the interference source is positioned, the problem item is found, modification is performed, and the scanning data is uploaded to the data processing system in real time.

[0052] In actual application, after the tooling test platform is normally powered on, the system enters a self-checking state, the test platform turntable 3 automatically rotates 360°, the light coupling can be set for positioning, then the first mechanical arm assembly 7 and the second mechanical arm assembly 8 enter a self-checking state, and each joint of the five degrees of freedom is self-checked. If the self-checking fails, a buzzer alarm is sounded and a software interface alarm is prompted at the same time, after the self-checking passes, the initialization setting of the tooling test system is entered, the running track of the mechanical arm assembly is set, the inverse solution of the mechanical arm movement track is solved in combination with the algorithm of the movement track, the joint angle is controlled, and the mechanical arm executes according to the preset movement track. In the running process, the electromagnetic data collected by the mechanical arm probe A7 is collected and compared with the preset threshold value, if the threshold value is not exceeded, the test platform turntable 3 is started to rotate at a preset angle and a uniform speed, the electromagnetic scanning system of the assembly is started, a layer-by-layer speed decreasing scanning mode is adopted, the above process is repeated, and each dimension of the to-be-tested sample EUT system is scanned until the data collected by the mechanical arm probe A7 exceeds the threshold value, and then the scanning is stopped and positioning is prompted. After the interference source is found, the product is modified.

[0053] Embodiment 2

[0054] As Figure 5As shown, an electromagnetic compatibility (EMC) testing fixture system suitable for near-field testing differs from Embodiment 1 in that the EUT system 9 in this embodiment is a circuit board. In the early stages of product development, while ensuring the basic functions of the circuit board are realized, it is also necessary to comply with relevant EMC and electrical safety standards. The circuit design principles, selection of electronic components, and the number of circuit board layers and wiring processes need to be simulated and prototypes customized. The EMC testing fixture system can test the near-field EMC radiated emissions at the circuit board level, find the location of the strongest interference source of radiated emissions, further determine the circuit board design problems, and lock in the direction of rectification.

[0055] The semi-finished components of the UV-Vis detector in the high-performance liquid chromatography system include an LCD display, buttons, various communication interfaces, internal wiring, trigger terminals, and other wiring. The +5V and +12V DC power supply interfaces of the data processing board are connected, and then connected to the four circuits in the gas-liquid-electric slip ring 11 of the test platform to ensure that the circuit board can be rotated 360° on the test platform. The detector semi-finished components are mounted on the circuit board support and fixed to the four test sample stages. The level 13 is observed, and the horizontal position of the adjustable top surface 6 is calibrated by adjusting the four adjustable knobs and screws between the adjustable bottom surface 5 and the adjustable top surface 6. After preparation, power is applied, and the tooling system enters the initialization phase. Once initialization is complete, the test platform turntable 3 rotates to zero. The robotic arm assembly, through the mechanical end effector A6, clamps the robotic arm probe A7 and performs layer-by-layer scanning of the circuit board at different distances. First, a rapid scan is performed to locate the interference source area, and then a detailed scan of the local area is performed to finally find the location of electronic components, wiring, or vias that exceed the electromagnetic interference standard. The electromagnetic signals obtained from the scan are recorded and processed. By analyzing the test results, interference sources that exceed the radiated emission standard are rectified, and the wiring positions and spaces are rectified. The test is repeated under the same conditions until the results meet the standard requirements.

[0056] Example 3:

[0057] like Figures 6-7 As shown, an electromagnetic compatibility testing fixture system suitable for near-field testing is different from that in Example 1 in that the EUT system 9 of the test sample in this example is a liquid chromatography-mass spectrometry system.

[0058] The liquid chromatograph-mass spectrometer system comprises a solvent tray 31, an automatic sampler 32, a high-pressure constant-flow pump 33, a chromatographic column thermostat 34 and a mass spectrometer 35. The four sample solvent bottles 36 are stored in the solvent tray 31. The mixed mobile phase of the high-pressure constant-flow pump 33 is delivered to the automatic sampler 32. The separated components are separated by the chromatographic column in the chromatographic column thermostat 34, and then enter the ion source of the mass spectrometer 35 through the interface, are ionized, are focused in the mass analyzer, are separated according to the mass-to-charge ratio, and are converted into electric signals, which are transmitted to the data processing system, so that the qualitative and quantitative analysis of the sample is realized.

[0059] Before the electromagnetic compatibility test, the horizontal calibration of the test platform is needed. Specifically, the values or positions of the level meter 17 are observed, and the adjustable bottom surface 5 and the adjustable top surface 6 are adjusted. The liquid chromatograph-mass spectrometer system is placed at the center of the test sample table 4 of the electromagnetic compatibility test tool test platform according to the scale 13. The power lines of each module of the liquid chromatograph-mass spectrometer system are connected to the test platform turntable power socket 10. The waste liquid flow path of the liquid chromatograph system, the communication interface connection line and the vacuum pump gas path for providing a vacuum system for the mass spectrometer 35 are all connected to the gas-liquid-electric slip ring 11 of the test platform, so as to ensure the 360° free rotation of the liquid chromatograph-mass spectrometer system.

[0060] The platform power socket 14 is connected to the external power supply 220V~ / 50Hz, the external vacuum pump gas path is connected to the test platform gas path interface 15, and the waste liquid collection bottle of the liquid phase system is connected to the test platform liquid path interface 16. In order not to be disturbed by the external electromagnetic environment, a transparent shielding cover is arranged above the electromagnetic compatibility test platform. The inside of the shielding cover can be provided with an illumination system and a camera system, so that the working state of the liquid chromatograph-mass spectrometer system can be clearly observed.

[0061] When the liquid chromatograph-mass spectrometer system is powered on and stably operated, the electromagnetic compatibility test platform is started, and the electromagnetic compatibility test platform system self-checking stage is entered. After the initialization of the test platform turntable 3 and the mechanical arm assembly is completed, the liquid chromatograph-mass spectrometer system is scanned in a scanning mode with decreasing speed layer by layer, the electromagnetic signals obtained by scanning are recorded and processed, the test results are analyzed, the interference sources with excessive radiation emission are rectified, the wiring position and space are rectified, and the test is repeated under the same conditions until the results meet the standard requirements. Through the continuous rectification process, the test threshold qualified result is used as the test standard of the product enterprise.

[0062] Finally, it should be noted that the above is merely to illustrate the technical solutions of the present application, and is not a limitation on the scope of protection of the present application, and simple modifications or equivalent replacements of the technical solutions of the present application by those skilled in the art do not deviate from the essence and scope of the technical solutions of the present application.

Claims

1. An electromagnetic compatibility test fixture system suitable for near field testing, the system comprising: It comprises a to-be-tested sample EUT system, an electromagnetic compatibility test platform, and an electromagnetic compatibility test data processing and communication system; the to-be-tested sample EUT system is arranged on the electromagnetic compatibility test platform, and the electromagnetic compatibility test data processing and communication system is in communication connection with the to-be-tested sample EUT system and the electromagnetic compatibility test platform; The to-be-tested sample EUT system is a to-be-tested object, and the to-be-tested sample EUT system is in a full-load operation state during testing. The electromagnetic compatibility test platform is used for fixing the to-be-tested sample EUT system and realizing electromagnetic compatibility radiation emission performance testing. The electromagnetic compatibility test data processing and communication system is used for control analysis and communication of each device on the to-be-tested sample EUT system and the electromagnetic compatibility test platform.

2. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 1, wherein, The electromagnetic compatibility test platform comprises a test platform base, a test platform column, a test platform rotary table, at least one mechanical arm assembly, and a coordinatable table top; the test platform base is connected with the test platform rotary table through the test platform column; the coordinatable table top is arranged on the test platform rotary table; the coordinatable table top comprises a tunable top surface and a tunable bottom surface; the tunable top surface and the tunable bottom surface are connected through a plurality of support adjustable knobs; and the mechanical arm assembly is arranged on the tunable top surface.

3. The EMC test fixture system suitable for near-field testing according to claim 2, wherein, The mechanical arm assembly is a mechanical arm assembly with at least five degrees of freedom.

4. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 3, wherein, The mechanical arm assembly comprises a mechanical arm base, a mechanical arm column, a mechanical arm shoulder, a mechanical arm elbow, a mechanical arm wrist, a mechanical arm end effector, and a mechanical arm probe; the mechanical arm base is mounted on the tunable top surface; the mechanical arm base is connected with the mechanical arm column, the mechanical arm shoulder, the mechanical arm elbow, the mechanical arm wrist, and the mechanical arm end effector through a conductive slip ring structure in sequence; and the mechanical arm probe is arranged on the mechanical arm end effector.

5. The EMC test fixture system suitable for near-field testing of claim 2, wherein, The electromagnetic compatibility test platform further comprises a to-be-tested product table; the to-be-tested product table is embedded in the test platform rotary table; the to-be-tested product table is further provided with a lifting mechanism at the bottom; and the to-be-tested product table is further provided with a scale.

6. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 2, wherein, The test platform base further comprises a stepping motor, a motor driver, and a speed reducer; the stepping motor is connected with the motor driver; the output end of the stepping motor is connected with the input end of the speed reducer; and the output end of the speed reducer is connected with the bottom of the test platform rotary table through a shaft coupling.

7. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 6, wherein, The test platform column is a hollow structure; the output end of the stepping motor extends through the test platform column to connect the test platform rotary table; and the test platform column is further provided with a gas-liquid-electric slip ring for fixing the pipeline or circuit of the to-be-tested sample EUT system.

8. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 2, wherein, The test platform base is provided with a roller; and the roller is provided with a roller locking structure.

9. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 2, wherein, The tunable top surface is further provided with a level and a rotary table power socket.

10. The electromagnetic compatibility test fixture system suitable for near-field testing of claim 1, wherein, The electromagnetic compatibility test data processing and communication system comprises an electromagnetic compatibility test platform software system; and the electromagnetic compatibility test platform software system realizes data acquisition, recording, storage, calibration, maintenance alarm functions.

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