CN102749539A - Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference - Google Patents

Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference Download PDF

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Publication number
CN102749539A
CN102749539A CN2012102179661A CN201210217966A CN102749539A CN 102749539 A CN102749539 A CN 102749539A CN 2012102179661 A CN2012102179661 A CN 2012102179661A CN 201210217966 A CN201210217966 A CN 201210217966A CN 102749539 A CN102749539 A CN 102749539A
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frequency
unusual
frequency spectrum
spectrum
amplitude
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CN2012102179661A
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CN102749539B (en
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谢树果
刘亚奇
李圆圆
杜威
张宇
陈曦
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北京航空航天大学
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Abstract

The invention discloses a fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference. A receiving antenna of the system is arranged on a frequency spectrum tester, a chuck end of a current probe is clamped on a cable through which tested objects are connected, the other end of the current probe is connected on the frequency spectrum tester which is connected with a computer; and the computer is internally provided with a fast electromagnetic compatibility test and diagnosis unit. The fast electromagnetic compatibility test and diagnosis unit is used for fast testing the electromagnetic-transmitted frequency spectrum of the tested objected on site, conducting analysis and diagnosis to the electromagnetic-transmitted frequency spectrum, and judging whether the electromagnetic transmission characteristic exceeds a standard limit value or has abnormality. The fast electromagnetic compatibility test and diagnosis system has important meaning on solving the electromagnetic compatibility problem and monitoring and evaluating the electromagnetic environment.

Description

A kind of quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI)
Technical field
What the present invention relates to is a kind of quick test diagnosis system of electromagnetic compatibility that quantizes electromagnetic interference (EMI) that has, and belongs to the Electromagnetic Interference Test technical field in the electromagnetic compatibility technology.
Background technology
Along with science and technology development, each corner that increasing electronics, electrical equipment enter society.In limited space, electronic equipment, electrical equipment density increase, and the power of equipment is increasing, and radio-frequency spectrum is crowded day by day, causes the electromagnetic environment of the finite space to go from bad to worse.How under time, space, frequency spectrum resource condition of limited; The electronic equipment, the electrical equipment that are in the same electromagnetic environment are not disturbed mutually; And normal operation; Become an important problem, i.e. the problem of the required solution of electromagnetic compatibility (EMC-Electromagnetic Compatibility).
" engineering electromagnetic compatibility " (author: V.Prasad Kodali that the People's Telecon Publishing House published on September 14th, 2006; Translator: Chen Shufeng; High formal guiding principle; The Soviet Union and Eastern Europe woods Zhou Bihua) points out in the book that electromagnetic compatibility is meant that device, equipment or system can either bring into play its function satisfactorily in its residing electromagnetic environment, and does not meanwhile introduce any other the ability of device, equipment or system in this environment to the electromagnetic disturbance that surpasses tolerance limit.Device, equipment or system inevitably produce external Electromagnetic Launching when work.When this emission surpasses certain tolerance limit, just possibly cause other devices, equipment or system performance in the environment to descend, the electromagnetic interference (EMI) phenomenon has promptly appearred.
For whether the Electromagnetic Launching of checking test specimen exceeds standard, need carry out Electromagnetic Interference Test.At present, the most frequently used laboratory method of Electromagnetic Interference Test is to use microwave dark room.Microwave dark room is a kind of indoor test facility, and outside electromagnetic environment is had higher isolation, so microwave dark room especially is fit to relate to the high sensitivity testing of feeble signal.Yet the construction cost of microwave dark room generally is very high.
Electromagnetic interference (EMI) arrives by the mechanism of jamming equipment much from its source, mainly is radiation and conduction.Radiation Emission to test specimen is tested; Test specimen is placed shielded anechoic chamber; Receiving antenna places apart from the fixing measuring distance (1m, 3m or 10m) of test specimen, and is connected to the receiver that testing radiation is launched through the accurate cable of calibrating, the test specimen launching electrical level input computing machine that the receiver that testing radiation is launched obtains; In computing machine, compare, thereby judge whether the test specimen Radiation Emission exceeds standard with corresponding ultimate value.The conduction transmission test comprises cable conduction emission and port conduction emission etc., and test thinking and radiation emission test are similar.Different is, cable conduction transmission test does not use receiving antenna and is to use the conduction of current probe detection streamer, and port conduction transmission test uses direct-connected mode detection port conduction.(see document: engineering electromagnetic compatibility, V.Prasad Kodali, People's Telecon Publishing House, Page (s): 116-120).
The test process more complicated is all accomplished in these tests in the darkroom.
Summary of the invention
Increasing along with electronics, electrical equipment, the electromagnetic compatibility problem of equipment room becomes increasingly conspicuous, and how to judge whether an equipment (test specimen) produces electromagnetic interference (EMI) to external world and become a major issue.Microwave dark room method cost is high in order to overcome, operation realizes complicated deficiency, and the present invention provides a kind of quick test diagnosis system of electromagnetic compatibility that quantizes electromagnetic interference (EMI) that has.The software platform combined with hardware equipment that this system builds based on Labview; Electromagnetic Launching frequency spectrum in order to the field quick detection test specimen; And its Electromagnetic Launching frequency spectrum carried out analyzing and diagnosing, judge whether its Electromagnetic Launching characteristic unusual or the value of going beyond the limit of standard take place.System of the present invention can conveniently carry out on-the-spot Electromagnetic Interference Test, analysis, diagnosis to test specimen.
A kind of quick test diagnosis system of electromagnetic compatibility that quantizes electromagnetic interference (EMI) that has of the present invention, this system detects the carrying out of testing through the computer interactive interface control, obtains the frequency spectrum relevant information.Under the detection test interface, select test used measurement antenna or current probe and test used radio frequency cable, test-types is set.When circuit matees when good, the level value that the spectrum measurement module reads is the radio-frequency voltage that the instrument input port is obtained.Equipment will be measured antenna, current probe coefficient and cable loss and be saved in the database, when detecting test, according to the testing apparatus of selecting, the data that the spectrum measurement appearance obtains carried out corresponding automatic the correction.After experimental test begins; Experimental test information such as typing test specimen; The running parameter of spectrum measurement appearance is set, comprises initial termination frequency, datum, decay, RBW, sweep time etc., spectrum measurement appearance instrument is started working; The quick testing and diagnosing of electromagnetic compatibility unit software collection data are also revised demonstration, and the result is saved to and generates quick diagnosis comparison database in the computing machine.Through detecting test, can obtain Radiation Emission frequency spectrum, cable source line conduction emission spectrum, terminal port antennae terminal conduction emission spectrum and the electromagnetic environment electromagnetic spectrum information of test specimen.
The quick testing and diagnosing of the electromagnetic compatibility that the present invention utilizes the Labview8.5 Programming with Pascal Language to obtain unit includes the dynamic display module of spectral coefficient correcting module 301, radiation frequency spectrum noise elimination module 302, radiation frequency spectrum filtration module 303, Emanations Analysis diagnostic module 304, environment electromagnetics frequency spectrum 305, cable conduction analyzing and diagnosing module 306, port conduction analyzing and diagnosing module 307; Spectral coefficient correcting module 301 is used for the first Radiation Emission frequency spectrum FA (a) that receives, the second Radiation Emission frequency spectrum FA (b), environment electromagnetics frequency spectrum FB, cable conduction frequency spectrum FC and port conduction frequency spectrum FD are carried out correcting process; Radiation frequency spectrum noise elimination module 302, radiation frequency spectrum filtration module 303 and Emanations Analysis diagnostic module 304 are handled the revised first Radiation Emission frequency spectrum FA (a), the second Radiation Emission frequency spectrum FA (b) in order; The dynamic display module 305 of environment electromagnetics frequency spectrum is used for intuitively showing revised environment electromagnetics frequency spectrum FB; Cable conduction analyzing and diagnosing module 306 is used for revised cable conduction frequency spectrum FC is carried out and the typical curve contrast, finds out unusual frequency; Port conduction analyzing and diagnosing module 307 is used for revised port conduction frequency spectrum FD is carried out and the typical curve contrast on the one hand, finds out unusual frequency; Carry out on the other hand and the contrast of CE106 ultimate value curve, find out the frequency that exceeds standard.
The advantage of the quick test diagnosis system of electromagnetic compatibility of the present invention is:
1. the present invention is based on the software platform that Labview8.5 builds; Combined with hardware equipment (like computing machine, spectrum measurement appearance); Can obtain Radiation Emission frequency spectrum, cable conduction frequency spectrum and the port conduction frequency spectrum of test specimen at the scene; And compare with corresponding ultimate value curve, simplify and fast the electromagnetic compatibility characteristic of test specimen is carried out testing and diagnosing, judge whether its Electromagnetic Launching exceeds standard; Make an experiment and need not that test specimen is delivered to special microwave dark room from the scene, saved great amount of time and manpower.Simultaneously, the manufacturing cost and use cost of the quick test diagnosis system of electromagnetic compatibility is more much lower than microwave dark room.
2. the present invention quick testing and diagnosing of electromagnetic compatibility unit of utilizing the Labview8.5 Programming with Pascal Language to obtain is integrated together spectrum measurement appearance and computing machine, and volume is less, relatively carry transportation, and shockproof, anti-high and low-temp, has stronger environmental suitability.
3. the data conclusion that testing and diagnosing of the present invention obtains is stored in the computing machine, conveniently calls and checks.In addition, except comparing with the ultimate value curve, the present invention can also compare analysis with the emission spectrum curve of test specimen and the emission spectrum curve under the test specimen normal operating conditions, judges whether its Electromagnetic Launching characteristic has taken place unusually.
4. system of the present invention can also detect electromagnetic environment in real time.
Description of drawings
Fig. 1 is the required hardware block diagram of the quick test diagnosis system of electromagnetic compatibility of the present invention.
Fig. 2 is the functional block diagram of the quick testing and diagnosing of electromagnetic compatibility of the present invention unit.
Fig. 2 A is the dynamic display interface of environment electromagnetics frequency spectrum of the present invention.
Fig. 3 A is the background environment spectrogram under the test specimen off-mode.
Fig. 3 B comprises the spectrogram of background environment when being test specimen work.
Fig. 3 C is the test specimen Radiation Emission spectrogram after the background filtering.
Fig. 4 is the analyzing and diagnosing figure of antenna terminal conduction emission and ultimate value.
Fig. 5 is the analyzing and diagnosing figure of Radiation Emission and historical data.
Fig. 6 is a certain moment background environment electromagnetic spectrum figure.
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further detailed description below.
Referring to shown in Figure 1, a kind of quick test diagnosis system of electromagnetic compatibility that quantizes electromagnetic interference (EMI) that has of the present invention, the hardware device that this system comprises has receiving antenna 11, current probe 12, spectrum measurement appearance 20 and computing machine 30; The quick testing and diagnosing of electromagnetic compatibility unit is installed in the said computing machine 30; The quick testing and diagnosing of said electromagnetic compatibility unit obtains for adopting Labview 8.5 Programming with Pascal Language.Annexation between the hardware device is: receiving antenna 11 is connected on the spectrum measurement appearance 20 through the radio frequency cable; The chuck end of current probe 12 is clipped on the power cable of test specimen; The output terminal of current probe 12 is connected on the spectrum measurement appearance 20 through the probe cable; Test specimen is connected on the spectrum measurement appearance 20 through the port cable, and spectrum measurement appearance 20 and computing machine 30 link to each other through data line.
Receiving antenna 11 is used on 1m, 3m or 10m fixed range receiving space test specimen radiation emitted transmit VA and environment electromagnetics signal VB;
Current probe 12 is used to receive the cable conducted signal VC of test specimen power cable.
In the present invention; In order to realize the purpose of low interference, high precision measurement; Under the test specimen outage condition, spectrum measurement appearance 20 converts the Radiation Emission signal VA that receives to first Radiation Emission frequency spectrum FA (a) and exports to the quick testing and diagnosing of the electromagnetic compatibility unit in the computing machine 30; Under test specimen start condition, spectrum measurement appearance 20 converts the Radiation Emission signal VA that receives to second Radiation Emission frequency spectrum FA (b) and exports to the quick testing and diagnosing of the electromagnetic compatibility unit in the computing machine 30.
Spectrum measurement appearance 20 converts the environment electromagnetics signal VB that receives to environment electromagnetics frequency spectrum FB and exports to the quick testing and diagnosing of the electromagnetic compatibility unit in the computing machine 30.
Spectrum measurement appearance 20 converts the cable conducted signal VC that receives to cable conduction frequency spectrum FC and exports to the quick testing and diagnosing of the electromagnetic compatibility unit in the computing machine 30.
Spectrum measurement appearance 20 converts the port conducted signal VD that receives to port conduction frequency spectrum FD and exports to the quick testing and diagnosing of the electromagnetic compatibility unit in the computing machine 30.
In the present invention, current probe 12 is selected the BCP-514 wideband current probe that AHS company produces for use; The survey frequency scope of this current probe 12 is 10kHz~100MHz.
In the present invention, receiving antenna 11 is selected the omnidirectional antenna that A.H.Systems company produces for use.Include the active telescopic antenna of SAS-550-1 in the said omnidirectional antenna, the survey frequency scope is 10kHz~60MHz; SAS-542 biconical antenna, survey frequency scope are 20MHz~330MHz; SAS-570 double-ridged horn antenna, survey frequency scope are 170MHz~3GHz; SAS-571 double-ridged horn antenna, survey frequency scope are 700MHz~18GHz.
In the present invention, the MS2726c hand-held spectrum analyzer that spectrum measurement appearance 20 selects for use Anritsu company to produce, the survey frequency scope is 9kHz~43GHz.
In the present invention, computing machine 30 is a kind ofly can carry out the modernized intelligent electronic device of massive values computation and various information processings automatically, at high speed according to prior program stored.Minimalist configuration is CPU 2GHz, internal memory 2GB, hard disk 100GB; Operating system is windows XP.Computing machine 30 can move Labview 8.5 programming softwares.In order to realize the Electromagnetic Launching abnormity diagnosis in the digitizing electromagnetic compatibility, the Electromagnetic Launching information under the test specimen normal operating conditions is kept in the storer of computing machine, said Electromagnetic Launching information has formed quick diagnosis comparison database.The spectrum curve that data in the said quick diagnosis comparison database are depicted as is called typical curve.
Referring to shown in Figure 2, the quick testing and diagnosing of electromagnetic compatibility unit includes the dynamic display module of spectral coefficient correcting module 301, radiation frequency spectrum noise elimination module 302, radiation frequency spectrum filtration module 303, Emanations Analysis diagnostic module 304, environment electromagnetics frequency spectrum 305, cable conduction analyzing and diagnosing module 306, port conduction analyzing and diagnosing module 307; Spectral coefficient correcting module 301 is used for the first Radiation Emission frequency spectrum FA (a) that receives, the second Radiation Emission frequency spectrum FA (b), environment electromagnetics frequency spectrum FB, cable conduction frequency spectrum FC and port conduction frequency spectrum FD are carried out correcting process; Radiation frequency spectrum noise elimination module 302, radiation frequency spectrum filtration module 303 and Emanations Analysis diagnostic module 304 are handled the revised first Radiation Emission frequency spectrum FA (a), the second Radiation Emission frequency spectrum FA (b) in order; The dynamic display module 305 of environment electromagnetics frequency spectrum is used for intuitively showing revised environment electromagnetics frequency spectrum FB; Cable conduction analyzing and diagnosing module 306 is used for revised cable conduction frequency spectrum FC is carried out and the typical curve contrast, finds out unusual frequency; Port conduction analyzing and diagnosing module 307 is used for revised port conduction frequency spectrum FD is carried out and the typical curve contrast on the one hand, finds out unusual frequency; Carry out on the other hand and the contrast of CE106 ultimate value curve, find out the frequency that exceeds standard.
To specify the function that each module realizes below:
(1) the spectral coefficient correcting module 301
Spectral coefficient correcting module 301 first aspects adopt first correction to concern CFA (a)=FA (a)+K E (antenna)+ L F (radio frequency cable)The first Radiation Emission frequency spectrum FA (a) to input revises, and obtains first and revises Radiation Emission frequency spectrum CFA (a); K E (antenna)The antenna damping coefficient of expression receiving antenna 11; L F (radio frequency cable)The radio frequency cable loss of expression receiving antenna 11;
Spectral coefficient correcting module 301 second aspects adopt second correction to concern CFA (b)=FA (b)+K E (antenna)+ L F (radio frequency cable)The second Radiation Emission frequency spectrum FA (b) to input revises, and obtains second and revises Radiation Emission frequency spectrum CFA (b); K E (antenna)The antenna damping coefficient of expression receiving antenna 11; L F (radio frequency cable)The radio frequency cable loss of expression receiving antenna 11;
Spectral coefficient correcting module 301 third aspect adopt the 3rd correction to concern CFB=FB+K E (antenna)+ L F (radio frequency cable)Environment electromagnetics frequency spectrum FB to input revises, and obtains revising environment electromagnetic spectrum CFB; K E (antenna)The antenna damping coefficient of expression receiving antenna 11; L F (radio frequency cable)The radio frequency cable loss of expression receiving antenna 11;
Spectral coefficient correcting module 301 fourth aspects adopt the 4th correction to concern CFC=FC+K E (probe)+ L F (probe cable)Cable conduction frequency spectrum FC to input revises, and obtains revising cable conduction frequency spectrum CFC; K E (probe)The attenuation coefficient of expression current probe 12; L F (probe cable)The probe cable loss of expression current probe 12;
Spectral coefficient correcting module 301 the 5th aspect adopts the 5th correction to concern CFD=FD+L F (port cable)Port conduction frequency spectrum FD to input revises, and obtains revising port conduction frequency spectrum CFD; L F (port cable)The port cable loss that is connected between expression test specimen and the spectrum measurement appearance 20.
(2) the radiation frequency spectrum noise elimination module 302
Radiation frequency spectrum noise elimination module 302 adopts the de-noising algorithm that the first correction Radiation Emission frequency spectrum CFA (a) of spectral coefficient correcting module 301 outputs is carried out denoising Processing on the one hand, obtains the first de-noising Radiation Emission frequency spectrum FA2 (a) output;
Radiation frequency spectrum noise elimination module 302 adopts the de-noising algorithm that the second correction Radiation Emission frequency spectrum CFA (b) of spectral coefficient correcting module 301 outputs is carried out denoising Processing on the other hand, obtains the second de-noising Radiation Emission frequency spectrum FA2 (b) output.
In the present invention, the de-noising algorithm is to revise Radiation Emission frequency spectrum CFA (a) to first to carry out the maximum value traversal, and amplitude is defaulted as electromagnetic signal greater than the frequency more than the minimal value 5dB of front and back, and other frequencies are defaulted as the end of making an uproar, and adds up the maximum amplitude at the end of making an uproar.The maximum amplitude at the end need not to carry out denoising Processing less than 24dB μ V/m if make an uproar, and Radiation Emission frequency spectrum CFA (a) is FA2 (A) output; The maximum amplitude at the end is more than or equal to 24dB μ V/m if make an uproar; Earlier the electromagnetic signal that screens among the CFA (a) is carried out processing and amplifying; Signal amplitude all increases 20dB, and the amplitude with all frequencies of entire spectrum all reduces 20dB then, can obtain Radiation Emission frequency spectrum FA2 (A) output after the de-noising.
In the present invention, the de-noising algorithm is to revise Radiation Emission frequency spectrum CFA (b) to second to carry out the maximum value traversal, and amplitude is defaulted as electromagnetic signal greater than the frequency more than the minimal value 5dB of front and back, and other frequencies are defaulted as the end of making an uproar, and adds up the maximum amplitude at the end of making an uproar.The maximum amplitude at the end need not to carry out denoising Processing less than 24dB μ V/m if make an uproar, and Radiation Emission frequency spectrum CFA (b) is FA2 (b) output; The maximum amplitude at the end is more than or equal to 24dB μ V/m if make an uproar; Earlier the electromagnetic signal that screens among the CFA (b) is carried out processing and amplifying; Signal amplitude all increases 20dB, and the amplitude with all frequencies of entire spectrum all reduces 20dB then, can obtain Radiation Emission frequency spectrum FA2 (b) output after the de-noising.
(3) the radiation frequency spectrum filtration module 303
Radiation frequency spectrum filtration module 303 first aspects are carried out the maximum value traversal to the first de-noising Radiation Emission frequency spectrum FA2 (a) of radiation frequency spectrum noise elimination module module 302 outputs, and amplitude is defaulted as electromagnetic signal FA2 (a) greater than the frequency more than the minimal value 5dB of front and back SA
Radiation frequency spectrum filtration module 303 second aspects are carried out the maximum value traversal to the second de-noising Radiation Emission frequency spectrum FA2 (b) of radiation frequency spectrum noise elimination module module 302 outputs, and amplitude is defaulted as electromagnetic signal FA2 (b) greater than the frequency more than the minimal value 5dB of front and back SA
Radiation frequency spectrum filtration module 303 third aspect are to FA2 (a) SAWith FA2 (b) SACarry out with the frequency signal fusing,, then this frequency amplitude among the FA2 (b) is carried out linear interpolation processing based on the front and back minimal value, obtain filtering Radiation Emission frequency spectrum FA3 output if exist with the frequency signal;
Radiation frequency spectrum filtration module 303 fourth aspects are to FA2 (a) SAWith FA2 (b) SACarry out with the frequency signal fusing,, then FA2 (b) is exported as filtering Radiation Emission frequency spectrum FA3 if do not exist with the frequency signal.
(4) the Emanations Analysis diagnostic module 304
The filtering Radiation Emission frequency spectrum FA3 of 304 pairs of radiation frequency spectrum filtration modules of Emanations Analysis diagnostic module, 303 outputs carries out the Emanations Analysis diagnosis, judges whether the Radiation Emission characteristic of test specimen is qualified or whether unusual, and concrete steps are:
The 304-1 step: require and method according to RE102 test event among GJB151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require " and the GJB152A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility are measured ", obtain RE102 ultimate value curve;
304-2 step: the filtering Radiation Emission frequency spectrum FA3 and the RE102 ultimate value curve of 303 outputs of radiation frequency spectrum filtration module are compared the Radiation Emission that the extracts test specimen frequency that exceeds standard.Amplitude is the frequency that exceeds standard greater than the frequency of RE102 ultimate value curve among the FA3;
The 304-3 step: according to whether existing the frequency that exceeds standard to judge whether the Radiation Emission characteristic of test specimen is qualified; If there is the frequency that exceeds standard; Then the Radiation Emission characteristic of test specimen does not satisfy the relevant regulations among the GJB151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require ", is defective; Otherwise, then be qualified;
The 304-4 step: the filtering Radiation Emission frequency spectrum FA3 of radiation frequency spectrum filtration module 303 outputs and the typical curve of the information formation in the quick diagnosis comparison database are compared, extract the unusual frequency of Radiation Emission of test specimen; Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the FA3;
The 304-5 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the Radiation Emission characteristic of test specimen is unusual; Otherwise, then be normal.When the Radiation Emission characteristic of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the FA3; If unusual frequency amplitude and typical curve differ 4dB~8dB among the FA3, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the FA3, then are that severe is unusual.
(5) the dynamic display module 305 of environment electromagnetics frequency spectrum
The dynamic display module 305 of environment electromagnetics frequency spectrum carries out demonstration, EMI test, analyzing and diagnosing condition setting, the setting of electromagnetic environment testing conditions of frequency spectrum graphics through the interface shown in Fig. 2 A.
The demonstration of frequency spectrum graphics mainly is that pin correction environment electromagnetic spectrum CFB shows, and constantly refreshes, on computer screen, carries out in real time the test result demonstration according to the difference of EMI test, analyzing and diagnosing condition setting, the setting of electromagnetic environment testing conditions.
EMI (Electro-Magnetic Interference, electromagnetic interference (EMI)) test: selection, the test pattern that includes test specimen selected, the test parameter setting; Said test pattern is selected to divide three types and is carried out, promptly radiation test (promptly survey FA (a), FA (b), FB, FC, FD), power lead conduction test (promptly surveying FC) and antenna terminal conduction test (promptly surveying FD); Said test parameter setting comprises the setting to initial frequency, termination frequency, three kinds of parameters of decay; Only select for the standard testing of satisfying army's mark demand, test pattern selection and test parameter setting are not chosen through test specimen is set.
Analyzing and diagnosing condition setting: include test curve selection and diagnostic mode and select; Said test curve select to refer to generate spectrogram the lines that will use; Whether said diagnostic mode selection is at present only to meeting army's target analysis and mark different interference anomaly analysis with army.
The setting of electromagnetic environment testing conditions realizes through test parameter setting.Include the setting of initial frequency, termination frequency, decay, RBW (analysis bandwidth), VBW (demonstration bandwidth) parameter.
On behalf of the signal of two different frequencies, RBW can clearly be differentiated the minimum frequency range difference of coming out, and the signal frequency range of two different frequencies is as being lower than the RBW of spectrum analyzer, and this moment, this two signal was with overlapping; Be difficult to differentiate; Lower RBW no doubt helps the resolution and the measurement of different frequency signals, and low RBW produces distortion with the signal composition of filtering upper frequency when causing signal to show; The RBW of distortion value and setting is closely related; Higher RBW no doubt helps the detecting of broadband signal, will increase noise bottom value (Noise Floor), reduces to measure sensitivity; Be prone to produce obstruction for the low intensive signal of detecting, therefore suitable RBW width is the vital point that correctly uses spectrum analyzer.VBW, video bandwidth, the precision of expression test, more little precision is high more, and as VBW is made as 100KHz, expression is every gets its level of appearance test at a distance from 100KHz, and it is smooth more to see that therefore VBW is provided with more little its test curve.
(6) cable conduction analyzing and diagnosing module 306
The correction cable conduction frequency spectrum CFC of 306 pairs of spectral coefficient correcting modules of cable conduction analyzing and diagnosing module, 301 outputs carries out cable conduction analyzing and diagnosing, judges whether the cable transport properties of test specimen is unusual, and concrete steps are:
The 306-1 step: the correction cable conduction frequency spectrum CFC of spectral coefficient correcting module 301 outputs and the typical curve of the information formation in the quick diagnosis comparison database are compared, extract the cable conduction abnormalities frequency of test specimen.Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the CFC;
The 306-2 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the cable transport properties of test specimen is unusual; Otherwise, then be normal.When the cable transport properties of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the CFC; If unusual frequency amplitude and typical curve differ 4dB~8dB among the CFC, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the CFC, then are that severe is unusual.
(7) port conduction analyzing and diagnosing module 307
The correction port conduction frequency spectrum CFD of 307 pairs of spectral coefficient correcting modules of port conduction analyzing and diagnosing module, 301 outputs carries out port conduction analyzing and diagnosing, judges whether the port transport properties of test specimen is qualified or whether unusual, and concrete steps are:
The 307-1 step: require and method according to CE106 test event among GJB151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require " and the GJB152A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility are measured ", obtain CE106 ultimate value curve;
The 307-2 step: the correction port conduction frequency spectrum CFD and the CE106 ultimate value curve of 301 outputs of spectral coefficient correcting module are compared, and the port that extracts test specimen conducts the frequency that exceeds standard; Amplitude is the frequency that exceeds standard greater than the frequency of CE106 ultimate value curve among the CFD;
The 307-3 step: according to whether existing the frequency that exceeds standard to judge whether the port transport properties of test specimen is qualified; If there is the frequency that exceeds standard; Then the port transport properties of test specimen does not satisfy the relevant regulations among the GJB151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require ", is defective; Otherwise, then be qualified;
The 307-4 step: the correction port conduction frequency spectrum CFD of spectral coefficient correcting module 301 outputs and the typical curve of the information formation in the quick diagnosis comparison database are compared, extract the port conduction abnormalities frequency of test specimen.Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the CFD;
The 307-5 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the port transport properties of test specimen is unusual; Otherwise, then be normal.When the port transport properties of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the CFD; If unusual frequency amplitude and typical curve differ 4dB~8dB among the CFD, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the CFD, then are that severe is unusual.
In the present invention, computing machine 30 is the control core of system and the carrier and the platform of software operation operation.Operating personnel can pass through computer interactive interface (shown in Fig. 2 A) and propose the detection task, and detected parameters is set, and obtain test result and carry out analyzing and diagnosing.Computing machine 30 is realized the control to spectrum measurement appearance 20 through transfer control signal and data message between USB transmission line and the spectrum measurement appearance 20, obtains frequency spectrum data for further analysis from spectrum measurement appearance 20 simultaneously.Test data is stored in computing machine 30, conveniently calls.
Native system is integrated together spectrum measurement appearance 20 and computing machine 30, and volume is little, easy to carry, and has stronger environmental suitability.
The quick testing and diagnosing of electromagnetic compatibility unit adopts virtual instrument development platform Labview 8.5 to write.The hardware of system is controlled and data acquisition, used specific algorithm to carry out interpretation and computing, obtain satisfactory electromagnetic spectrum the data of collecting; The electromagnetic spectrum of test specimen is compared with the typical curve that corresponding ultimate value curve or quick diagnosis are compared the information generation in the database, judge the current electromagnetic compatibility characteristic of test specimen; In addition, the quick testing and diagnosing unit further of electromagnetic compatibility is effectively managed test data.
In the present invention, computing machine 30 main USB transmission line and the spectrum measurement appearance 20 of adopting carry out the transmission of control command and the collection of external data.Behind program start, the quick testing and diagnosing of electromagnetic compatibility unit earlier sends a self-checking command to spectrum measurement appearance 20, receive self-checking command after spectrum measurement appearance 20 return specific code.If the quick testing and diagnosing of electromagnetic compatibility unit does not receive this code, show that then malunion is normal, the quick testing and diagnosing of electromagnetic compatibility unit reports an error, and need carry out manual intervention.If the quick testing and diagnosing of electromagnetic compatibility unit receives the code of response, show that then spectrum measurement appearance 20 is in proper working order, proceed test.According to testing requirements specific parameter is write spectrum measurement appearance 20; Spectrum measurement appearance 20 is handled back feedback data information; Judging whether needs to continue control spectrum measurement appearance 20, then continues if desired to write controlled variable to spectrum measurement appearance 20, continues test by above-mentioned steps; If do not need, then end test.
In the present invention, the carrying out through computer interactive interface (shown in Fig. 2 A) control test obtains spectrum information.Under test interface, select test used measurement antenna or current probe and test used radio frequency cable, test-types is set.When testing,, the data that spectrum measurement appearance 20 obtains are carried out corresponding correction automatically according to the testing apparatus of selecting.After the test beginning; Detecting informations such as typing test specimen; Spectrum measurement appearance 20 running parameters are set, comprise initial termination frequency, datum, decay, RBW, sweep time etc., spectrum measurement appearance 20 is started working; The quick testing and diagnosing of electromagnetic compatibility unit image data is also revised demonstration, and the result is saved in the computing machine 30.Through test, can obtain Radiation Emission frequency spectrum, cable conduction frequency spectrum, port conduction frequency spectrum and the environment electromagnetics spectrum information of test specimen.
When carrying out radiation emission test, the end of making an uproar, maybe be than higher.Test specimen Radiation Emission frequency spectrum to obtaining carries out denoising Processing, isolated Radiation Emission signal from the end of making an uproar.
When carrying out radiation emission test, possibly there is certain undesired signal in the environment, the Radiation Emission frequency spectrum of the test specimen that obtains is carried out Filtering Processing, the Radiation Emission signal of test specimen is extracted from ambient signal.
The quick testing and diagnosing of electromagnetic compatibility unit compares the emission spectrum of the test specimen that obtains and the typical curve of the information generation in corresponding ultimate value curve or the quick diagnosis comparison database, and the electromagnetic compatibility characteristic of test specimen is diagnosed.The selection test figure that need compare at first under the analyzing and diagnosing interface, and select diagnosis scheme.When selecting and the ultimate value curve compares accordingly, amplitude judges greater than the frequency of ultimate value whether the electromagnetic compatibility characteristic of test specimen exceeds standard in the statistical Emission frequency spectrum.When select with quick diagnosis comparison database in the typical curve that generates of information when comparing, add up the frequency that variable quantity in two groups of data surpasses setting value, judge whether the electromagnetic compatibility characteristic of test specimen takes place unusually.
Embodiment 1
Hardware device receiving antenna 11, current probe 12, spectrum measurement appearance 20 and computing machine 30 are connected.
Use receiving antenna 11 can obtain the Radiation Emission frequency spectrum of test specimen.In use, system carries out twice test automatically according to being provided with.For the first time, the Radiation Emission frequency spectrum under the acquisition test specimen outage condition.Shown in Fig. 3 A, be the Radiation Emission frequency spectrum under the test specimen outage condition.As can be seen from the figure, a bigger ambient signal is arranged about 23MHz.For the second time, the Radiation Emission frequency spectrum under the acquisition test specimen start condition.Shown in Fig. 3 B, be the Radiation Emission frequency spectrum of certain signal generator under the start condition.As can be seen from the figure, frequency spectrum had both comprised that the work of signal generator transmits, and also comprised ambient signal.System generates the filtered Radiation Emission frequency spectrum of test specimen automatically through filtering algorithm.Shown in Fig. 3 C, be filtered test specimen Radiation Emission frequency spectrum.As can be seen from the figure, ambient signal is by filtering.Use current probe 12, can obtain the cable conduction frequency spectrum of test specimen.Through direct-connected mode, can obtain the port conduction frequency spectrum of test specimen.
After obtaining the emission spectrum of test specimen, and then the typical curve that can generate with the information in corresponding ultimate value curve or the quick diagnosis comparison database compares analysis, and its electromagnetic compatibility characteristic is diagnosed.As shown in Figure 4; The port conduction frequency spectrum of a certain civil radio that obtains and corresponding ultimate value curve (choose here among the GJB151A-97 CE106 curve as the ultimate value curve) are compared; Diagnosis is found, its conduction emission value of not going beyond the limit of standard, and the Electromagnetic Launching characteristic is qualified.As shown in Figure 5, the typical curve that the Radiation Emission frequency spectrum of a certain civil radio that obtains and information in the quick diagnosis comparison database are generated compares, and diagnosis finds that its humorous intensity of wave becomes greatly, and the Electromagnetic Launching characteristic has taken place unusually.
Use receiving antenna 11, can carry out real-time detection electromagnetic environment, as shown in Figure 6, be the environment electromagnetics frequency spectrum under a certain moment background.

Claims (7)

1. one kind has the quick test diagnosis system of electromagnetic compatibility that quantizes electromagnetic interference (EMI), and the hardware device that this system comprises has receiving antenna (11), current probe (12), spectrum measurement appearance (20) and computing machine (30); It is characterized in that: adopt the Labview Programming with Pascal Language to obtain the quick testing and diagnosing of electromagnetic compatibility unit in the said computing machine (30); The quick testing and diagnosing of said electromagnetic compatibility unit includes spectral coefficient correcting module (301), radiation frequency spectrum noise elimination module (302), radiation frequency spectrum filtration module (303), Emanations Analysis diagnostic module (304), the dynamic display module of environment electromagnetics frequency spectrum (305), cable conduction analyzing and diagnosing module (306), port conduction analyzing and diagnosing module (307);
Spectral coefficient correcting module (301) first aspect adopts first correction to concern CFA (a)=FA (a)+K E (antenna)+ L F (radio frequency cable)The first Radiation Emission frequency spectrum FA (a) to input revises, and obtains first and revises Radiation Emission frequency spectrum CFA (a); K E (antenna)The antenna damping coefficient of expression receiving antenna (11); L F (radio frequency cable)The radio frequency cable loss of expression receiving antenna (11);
Spectral coefficient correcting module (301) second aspect adopts second correction to concern CFA (b)=FA (b)+K E (antenna)+ L F (radio frequency cable)The second Radiation Emission frequency spectrum FA (b) to input revises, and obtains second and revises Radiation Emission frequency spectrum CFA (b);
Spectral coefficient correcting module (301) third aspect adopts the 3rd correction to concern CFB=FB+K E (antenna)+ L F (radio frequency cable)Environment electromagnetics frequency spectrum FB to input revises, and obtains revising environment electromagnetic spectrum CFB;
Spectral coefficient correcting module (301) fourth aspect adopts the 4th correction to concern CFC=FC+K E (probe)+ L F (probe cable)Cable conduction frequency spectrum FC to input revises, and obtains revising cable conduction frequency spectrum CFC;
Spectral coefficient correcting module (301) the 5th aspect adopts the 5th correction to concern CFD=FD+L F (port cable)Port conduction frequency spectrum FD to input revises, and obtains revising port conduction frequency spectrum CFD; L F (port cable)The port cable loss that is connected between expression test specimen and the spectrum measurement appearance (20);
Radiation frequency spectrum noise elimination module (302) adopts the de-noising algorithm that the described first correction Radiation Emission frequency spectrum CFA (a) is carried out denoising Processing on the one hand, obtains the first de-noising Radiation Emission frequency spectrum FA2 (a) output;
Radiation frequency spectrum noise elimination module (302) adopts the de-noising algorithm that the described second correction Radiation Emission frequency spectrum CFA (b) is carried out denoising Processing on the other hand, obtains the second de-noising Radiation Emission frequency spectrum FA2 (b) output;
Radiation frequency spectrum filtration module (303) first aspect is carried out the maximum value traversal to the described first de-noising Radiation Emission frequency spectrum FA2 (a), and amplitude is defaulted as electromagnetic signal FA2 (a) greater than the frequency more than the minimal value 5dB of front and back SA
Radiation frequency spectrum filtration module (303) second aspect is carried out the maximum value traversal to the described second de-noising Radiation Emission frequency spectrum FA2 (b), and amplitude is defaulted as electromagnetic signal FA2 (b) greater than the frequency more than the minimal value 5dB of front and back SA
Radiation frequency spectrum filtration module (303) third aspect is to FA2 (a) SAWith FA2 (b) SACarry out with the frequency signal fusing,, then this frequency amplitude among the FA2 (b) is carried out linear interpolation processing based on the front and back minimal value, obtain filtering Radiation Emission frequency spectrum FA3 output if exist with the frequency signal;
Radiation frequency spectrum filtration module (303) fourth aspect is to FA2 (a) SAWith FA2 (b) SACarry out with the frequency signal fusing,, then FA2 (b) is exported as filtering Radiation Emission frequency spectrum FA3 if do not exist with the frequency signal;
Emanations Analysis diagnostic module (304) carries out the Emanations Analysis diagnosis to described filtering Radiation Emission frequency spectrum FA3, judges whether the Radiation Emission characteristic of test specimen is qualified or whether unusual, and concrete steps are:
The 304-1 step: require and method according to RE102 test event among GJB 151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require " and the GJB 152A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility are measured ", obtain RE102 ultimate value curve;
304-2 step: described filtering Radiation Emission frequency spectrum FA3 and RE102 ultimate value curve are compared the Radiation Emission that the extracts test specimen frequency that exceeds standard; Amplitude is the frequency that exceeds standard greater than the frequency of RE102 ultimate value curve among the FA3;
The 304-3 step: according to whether existing the frequency that exceeds standard to judge whether the Radiation Emission characteristic of test specimen is qualified; If there is the frequency that exceeds standard; Then the Radiation Emission characteristic of test specimen does not satisfy the relevant regulations among the GJB 151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require ", is defective; Otherwise, then be qualified;
The 304-4 step: the typical curve that the information in described filtering Radiation Emission frequency spectrum FA3 and the quick diagnosis comparison database forms is compared, extract the unusual frequency of Radiation Emission of test specimen; Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the FA3;
The 304-5 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the Radiation Emission characteristic of test specimen is unusual; Otherwise, then be normal.When the Radiation Emission characteristic of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the FA3; If unusual frequency amplitude and typical curve differ 4dB~8dB among the FA3, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the FA3, then are that severe is unusual;
The dynamic display module of environment electromagnetics frequency spectrum (305) is used for showing on the one hand revises environment electromagnetic spectrum CFB, constantly refreshes, on computer screen, carries out in real time test result on the other hand according to the difference of EMI test, analyzing and diagnosing condition setting, the setting of electromagnetic environment testing conditions and show;
Cable conduction analyzing and diagnosing module (306) is carried out cable conduction analyzing and diagnosing to described correction cable conduction frequency spectrum CFC, judges whether the cable transport properties of test specimen is unusual, and concrete steps are:
The 306-1 step: the correction cable conduction frequency spectrum CFC of spectral coefficient correcting module 301 outputs and the typical curve of the information formation in the quick diagnosis comparison database are compared, extract the cable conduction abnormalities frequency of test specimen.Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the CFC;
The 306-2 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the cable transport properties of test specimen is unusual; Otherwise, then be normal.When the cable transport properties of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the CFC; If unusual frequency amplitude and typical curve differ 4dB~8dB among the CFC, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the CFC, then are that severe is unusual;
Port conduction analyzing and diagnosing module (307) is carried out port conduction analyzing and diagnosing to described correction port conduction frequency spectrum CFD, judges whether the port transport properties of test specimen is qualified or whether unusual, and concrete steps are:
The 307-1 step: require and method according to CE106 test event among GJB 151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require " and the GJB 152A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility are measured ", obtain CE106 ultimate value curve;
The 307-2 step: the correction port conduction frequency spectrum CFD and the CE106 ultimate value curve of 301 outputs of spectral coefficient correcting module are compared, and the port that extracts test specimen conducts the frequency that exceeds standard; Amplitude is the frequency that exceeds standard greater than the frequency of CE106 ultimate value curve among the CFD;
The 307-3 step: according to whether existing the frequency that exceeds standard to judge whether the port transport properties of test specimen is qualified; If there is the frequency that exceeds standard; Then the port transport properties of test specimen does not satisfy the relevant regulations among the GJB151A-1997 " military equipment equipment and subsystem Electromagnetic Launching and susceptibility require ", is defective; Otherwise, then be qualified;
The 307-4 step: the correction port conduction frequency spectrum CFD of spectral coefficient correcting module 301 outputs and the typical curve of the information formation in the quick diagnosis comparison database are compared, extract the port conduction abnormalities frequency of test specimen.Amplitude and typical curve differ the above frequency of 2dB and are unusual frequency among the CFD;
The 307-5 step:,, be unusual if there is unusual frequency according to whether existing unusual frequency to judge whether the port transport properties of test specimen is unusual; Otherwise, then be normal.When the port transport properties of test specimen takes place to judge intensity of anomaly according to the difference amplitude when unusual,, then be mile abnormality if unusual frequency amplitude and typical curve differ 2dB~4dB among the CFD; If unusual frequency amplitude and typical curve differ 4dB~8dB among the CFD, then are that moderate is unusual; If unusual frequency amplitude and typical curve differ more than the 8dB among the CFD, then are that severe is unusual.
2. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1; It is characterized in that: the de-noising algorithm is to revise Radiation Emission frequency spectrum CFA (a) to first to carry out the maximum value traversal; Amplitude is defaulted as electromagnetic signal greater than the frequency more than the minimal value 5dB of front and back; Other frequencies are defaulted as the end of making an uproar, add up the maximum amplitude at the end of making an uproar.The maximum amplitude at the end need not to carry out denoising Processing less than 24dB μ V/m if make an uproar, and Radiation Emission frequency spectrum CFA (a) is FA2 (a) output; The maximum amplitude at the end is more than or equal to 24dB μ V/m if make an uproar; Earlier the electromagnetic signal that screens among the CFA (a) is carried out processing and amplifying; Signal amplitude all increases 20dB, and the amplitude with all frequencies of entire spectrum all reduces 20dB then, can obtain Radiation Emission frequency spectrum FA2 (a) output after the de-noising.
3. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1; It is characterized in that: the de-noising algorithm is to revise Radiation Emission frequency spectrum CFA (b) to second to carry out the maximum value traversal; Amplitude is defaulted as electromagnetic signal greater than the frequency more than the minimal value 5dB of front and back; Other frequencies are defaulted as the end of making an uproar, add up the maximum amplitude at the end of making an uproar.The maximum amplitude at the end need not to carry out denoising Processing less than 24dB μ V/m if make an uproar, and Radiation Emission frequency spectrum CFA (b) is FA2 (b) output; The maximum amplitude at the end is more than or equal to 24Db μ Vm if make an uproar; Earlier the electromagnetic signal that screens among the CFA (b) is carried out processing and amplifying; Signal amplitude all increases 20dB, and the amplitude with all frequencies of entire spectrum all reduces 20dB then, can obtain Radiation Emission frequency spectrum FA2 (b) output after the de-noising.
4. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1, it is characterized in that: the annexation between the receiving antenna in the hardware device (11), current probe (12), spectrum measurement appearance (20) and the computing machine (30) does; Receiving antenna (11) is connected on the spectrum measurement appearance (20) through the radio frequency cable; The chuck end of current probe (12) is clipped on the power cable of test specimen; The output terminal of current probe (12) is connected on the spectrum measurement appearance (20) through the probe cable; Test specimen is connected on the spectrum measurement appearance (20) through the port cable, and spectrum measurement appearance (20) links to each other through data line with computing machine (30).
5. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1, it is characterized in that: it is the hand-held spectrum analyzer of 9kHz~43GHz that said spectrum measurement appearance (20) is selected the survey frequency scope for use.
6. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1, it is characterized in that: said receiving antenna (11) is selected omnidirectional antenna for use; Include the active telescopic antenna of SAS-550-1 in the said omnidirectional antenna, the survey frequency scope is 10kHz~60MHz; SAS-542 biconical antenna, survey frequency scope are 20MHz~330MHz; SAS-570 double-ridged horn antenna, survey frequency scope are 170MHz~3GHz; SAS-571 double-ridged horn antenna, survey frequency scope are 700MHz~18GHz.
7. the quick test diagnosis system of electromagnetic compatibility with quantification electromagnetic interference (EMI) according to claim 1, it is characterized in that: the survey frequency scope of said current probe (12) is 10kHz~100MHz.
CN201210217966.1A 2012-06-27 2012-06-27 Fast electromagnetic compatibility test and diagnosis system with quantization electromagnetic interference CN102749539B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224858A1 (en) * 1992-07-28 1994-02-03 Gunter Dipl Ing Langer Evaluating tolerance of digital circuits to EM interference - using interference generator with variable pulsed output characteristic to test static and dynamic response of digital circuitry
CN101701986A (en) * 2009-10-27 2010-05-05 中国舰船研究设计中心 System for pre-testing and diagnosing electro magnetic interference of electronic equipment and method thereof
CN101750545A (en) * 2009-12-15 2010-06-23 北京空间飞行器总体设计部 Electromagnetic compatibility test method for electric propulsion system
CN101873144A (en) * 2010-05-28 2010-10-27 北京航空航天大学 Electromagnetic compatibility optimizing method for receiver in targeted frequency ranges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224858A1 (en) * 1992-07-28 1994-02-03 Gunter Dipl Ing Langer Evaluating tolerance of digital circuits to EM interference - using interference generator with variable pulsed output characteristic to test static and dynamic response of digital circuitry
CN101701986A (en) * 2009-10-27 2010-05-05 中国舰船研究设计中心 System for pre-testing and diagnosing electro magnetic interference of electronic equipment and method thereof
CN101750545A (en) * 2009-12-15 2010-06-23 北京空间飞行器总体设计部 Electromagnetic compatibility test method for electric propulsion system
CN101873144A (en) * 2010-05-28 2010-10-27 北京航空航天大学 Electromagnetic compatibility optimizing method for receiver in targeted frequency ranges

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
YAQI LIU: "Design of the electromagnetic compatibility detection and diagnosis system based on LabVIEW", 《ENGINEERING AND TECHNOLOGY (S-CET)》, 30 May 2012 (2012-05-30), XP032472867, DOI: doi:10.1109/SCET.2012.6341919 *
杨醉: "复杂电磁环境下辐射发射测试系统分析与设计", 《中国优秀硕士学位论文全文数据库信息科技辑》, 15 February 2012 (2012-02-15), pages 135 - 14 *

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