CN103616575B - A kind of radiation emission test method - Google Patents
A kind of radiation emission test method Download PDFInfo
- Publication number
- CN103616575B CN103616575B CN201310399905.6A CN201310399905A CN103616575B CN 103616575 B CN103616575 B CN 103616575B CN 201310399905 A CN201310399905 A CN 201310399905A CN 103616575 B CN103616575 B CN 103616575B
- Authority
- CN
- China
- Prior art keywords
- antenna
- radiation emission
- modified value
- emission test
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 59
- 238000010998 test method Methods 0.000 title abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 99
- 238000004891 communication Methods 0.000 claims abstract description 38
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 238000009933 burial Methods 0.000 claims abstract description 3
- 230000008859 change Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 5
- 238000005388 cross polarization Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 238000013100 final test Methods 0.000 abstract description 3
- 238000013178 mathematical model Methods 0.000 abstract description 3
- 230000005684 electric field Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 101100370100 Mus musculus Tor3a gene Proteins 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The invention provides a kind of radiation emission test method, relate to technical field of electromagnetic compatibility measurement, radiation emission test system comprises: opertaing device, signal source, receiver, radio communication tester, radiofrequency signal processor, wave filter, radio-frequency cable, general purpose interface bus GPIB cable, anechoic chamber, preamplifier, measurement antenna, antenna tower, antenna cable, test table, radio communication tester antenna, pre-buried cable; Wherein, preamplifier, measurement antenna, antenna tower, test table, radio communication tester antenna are arranged in anechoic chamber; Pre-buried cable burial is in the wall interiors or below ground of anechoic chamber.The invention provides a kind of radiation emission test system, this system can carry out electromagnetic compatibility test to Wireless Telecom Equipment and non-infinite communication facilities, simultaneously, the invention provides a kind of radiation emission test method, by setting up electric field intensity mathematical model to this radiation emission test system, analyze the various uncertainty sources component of this radiation emission test system, determine the expanded uncertainty of this radiation emission test system, the expanded uncertainty of this radiation emission test system is utilized to revise test result, accuracy and the reliability of final testing result can be improved.
Description
Technical field
The present invention relates to technical field of electromagnetic compatibility measurement, particularly, relate to a kind of radiation emission test method.
Background technology
At power domain, usually need to carry out electromagnetic compatibility test to intelligent substation equipment, to determine whether intelligent substation equipment normally can run in the electromagnetic environment of complexity.
At present, the electromagnetic compatibility test for intelligent substation equipment must build radiation test system according to corresponding national standard, and the technology contents be specifically related to is as follows:
1, when Device under test is non-wireless communication device, need establishing criteria GB9254-2008 to design radiation emission test system, and when Device under test is Wireless Telecom Equipment, need establishing criteria GB/T22450.1-2008 to design radiation emission test system.
2, be no matter the electromagnetic compatibility test of non-wireless communication device, or the electromagnetic compatibility test of Wireless Telecom Equipment, it measures frequency range is all 30MHz ~ 6GHz.During measurement, need measurement frequency range to be divided into two frequency sub-band to carry out respectively, namely below 1GHz frequency range (30MHz ~ 1GHz) and 1GHz are with super band (1GHz ~ 6GHz); Further, the electromagnetic compatibility test of below 1GHz frequency range must carry out in semi-anechoic chamber, and 1GHz must carry out at fully anechoic chamber or spread absorbing material on the ground of semi-anechoic chamber after with the electromagnetic compatibility test of super band.That is, electromagnetic compatibility test be completed, need to carry out in different measurement places for different measurement frequency sub-band, be in fact equivalent to do twice measurement.
3, electromagnetic compatibility measurement limit value (field intensity value, unit: dB μ V/m) is given by corresponding measurement standard, is the judgment basis in measuring process.If the harassing and wrecking of measuring the Device under test obtained exceed limit value, just show that the harassing and wrecking of this Device under test are defective, otherwise be then qualified.
4, in standard GB9254-2008 and GB/T22450.1-2008, for below 1GHz frequency range, its limit value provides under the measuring distance of 10m, and for 1GHz with super band, its limit value is then provide under the measuring distance of 3m.If the measurement of 10m distance can not be carried out in existing measurement place, the measurement of 3m distance can only be carried out, so with regard to need by 10m in standard apart under limit value be converted into 3m apart under limit value, reduction formula is: L3m=L10m+20lg (10/3); Wherein, L3m is the limit value (dB μ V/m) under 3m measuring distance, and L10m is the limit value (dB μ V/m) under 10m measuring distance.
5, because non-wireless communication device is divided into A, B two grades, the limit of disturbance difference that these two kinds of grades are corresponding, when therefore testing non-wireless communication device, first needs the grade confirming Device under test to be A level or B level; For Wireless Telecom Equipment, its limit of disturbance equals the limit of disturbance of B level non-wireless communication device.
6, in the radiation disturbance limit value list of electromagnetic compatibility, can see three kinds of dissimilar limit values, namely quasi-peak value (QP) limit value of below 1GHz frequency range, 1GHz are with the mean value of super band (AV) limit value and peak value (PK) limit value.Therefore, when measuring harassing and wrecking, receiver must be set to corresponding detecting way (detecting way be for the wave detector in receiver), otherwise result can be incorrect.
Current, the radiation emission test system of building for the electromagnetic compatibility test of intelligent substation equipment is very different, and do not consider the uncertainty influence factor of built radiation emission test system for electromagnetic compatibility test itself, the result accuracy that final test obtains is also not high enough.
Summary of the invention
The fundamental purpose of the embodiment of the present invention is to provide a kind of radiation emission test method, to provide a kind of system for carrying out electromagnetic compatibility test to intelligent substation equipment, and provide a kind of method of testing utilizing the uncertainty of radiation emission test system to revise to improve test result accuracy to test result.
To achieve these goals, the embodiment of the present invention provides a kind of radiation emission test system, comprising: opertaing device, signal source, receiver, radio communication tester, radiofrequency signal processor, wave filter, radio-frequency cable, general purpose interface bus GPIB cable, anechoic chamber, preamplifier, measurement antenna, antenna tower, antenna cable, test table, radio communication tester antenna, pre-buried cable; Wherein,
Described preamplifier, measurement antenna, antenna tower, test table, radio communication tester antenna are arranged in described anechoic chamber; Described pre-buried cable burial is in the wall interiors or below ground of described anechoic chamber;
Described test table, for bearing intelligent substation equipment, can drive described intelligent substation equipment at horizontal rotation in surface;
Described radio communication tester antenna, is arranged at below described test table;
Described measurement antenna, is fixedly installed on described antenna tower, and connects described preamplifier by described antenna cable;
Described antenna tower, arrange with described test table setpoint distance of being separated by, described measurement antenna can be driven vertically to move up and down;
Described radiofrequency signal processor, connects described signal source, receiver, radio communication tester and wave filter respectively by described radio-frequency cable; Described preamplifier and described radio communication tester antenna is connected respectively by described pre-buried cable;
Described opertaing device, connects described signal source, receiver, radio communication tester, radiofrequency signal processor and wave filter respectively by described GPIB cable.
Accordingly, the present invention also provides a kind of and utilizes radiation emission test system as above to carry out the method for radiation emission test, comprising:
Test obtains the radiation disturbance limit value of intelligent substation equipment;
The expanded uncertainty of described radiation emission test system is utilized to revise testing the radiation disturbance limit value obtained;
Wherein, the expanded uncertainty of described radiation emission test system is according to following formulae discovery:
Wherein, n is total number of the uncertainty source component of described radiation emission test system; Ci is the sensitivity coefficient of i-th uncertainty source component; Ui is the uncertainty of i-th uncertainty source component; U (E) is the expanded uncertainty of described radiation emission test system; K is Coverage factor;
Described uncertainty source component comprises: receiver voltage readings, receiver voltage readings, the damping capacity of the interconnection network between receiver and measurement antenna, measure antenna factor, to the inaccurate modified value of receiver sine voltage, receiver pulse height responds undesirable modified value, receiver pulse repetition rate responds undesirable modified value, the modified value of the local noise effect of receiver, the modified value of mismatch error, measure the modified value of antenna factor interpolated error, measure the antenna factor of antenna factor with height change and standard dipole antenna with the modified value of the difference of height change, measure the modified value of antenna directivity, measure the modified value of antenna phase center position, measure the modified value of antenna cross-polarization response, measure the unbalanced modified value of antenna, the modified value of imperfection site attenuation, measurement antenna and intelligent substation equipment room are apart from indeterminable modified value, test table is from the unsuitable modified value of anechoic chamber, floor level.
By means of technique scheme, the invention provides a kind of radiation emission test system, this system can carry out electromagnetic compatibility test to Wireless Telecom Equipment and non-infinite communication facilities, simultaneously, the invention provides a kind of radiation emission test method, by setting up electric field intensity mathematical model to this radiation emission test system, analyze the various uncertainty sources component of this radiation emission test system, determine the expanded uncertainty of this radiation emission test system, the expanded uncertainty of this radiation emission test system is utilized to revise test result, accuracy and the reliability of final testing result can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of radiation emission test system provided by the invention;
Fig. 2 is radiation emission test method flow schematic diagram provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of radiation emission test system, as shown in Figure 1, this system comprises: opertaing device 101, signal source 102, receiver 103, radio communication tester 104, radiofrequency signal processor 105, wave filter 106, radio-frequency cable 107, GPIB cable 108, anechoic chamber, 109, preamplifier 110, measurement antenna 111, antenna tower 112, antenna cable 113, test table 114, radio communication tester antenna 115, pre-buried cable 116; Wherein, receiver 103 is made up of frequency spectrograph 117 and preselector 118; Anechoic chamber, 109 is semi-anechoic chamber or fully anechoic chamber; Antenna tower 112 and test table 114 are separated by 3 meters or 10 meters and are arranged, to meet test intelligent substation equipment being carried out to different frequency range.
As shown in Figure 1, preamplifier 110, measurement antenna 111, antenna tower 112, test table 114, radio communication tester antenna 115 are arranged in anechoic chamber, 109; Pre-buried cable 116 is embedded in the wall interiors or below ground of anechoic chamber, 109;
Test table 114, for bearing intelligent substation equipment, can drive intelligent substation equipment at horizontal rotation in surface;
Radio communication tester antenna 115, is arranged at below test table 114;
Measure antenna 111, be fixedly installed on antenna tower 112, and connect preamplifier 110 by antenna cable 113;
Antenna tower 112, are arranged with test table 114 setpoint distance of being separated by, and can drive to measure antenna 111 and vertically move up and down;
Radiofrequency signal processor 105, by radio-frequency cable 107 connecting signal source 102, receiver 103, radio communication tester 104 and wave filter 106 respectively; Preamplifier 110 and radio communication tester antenna 115 is connected respectively by pre-buried cable 116;
Opertaing device 101, by GPIB cable 108 connecting signal source 102, receiver 103, radio communication tester 104, radiofrequency signal processor 105 and wave filter 106 respectively.
In the present invention, the effect of signal source 102 is mainly used for carrying out path alignment, namely measures the damping capacity of path to different frequency signals.
The effect of radiofrequency signal processor 105 is the automatic switchovers realizing various measuring route.
Radio communication tester 104 is when the base station of setting up out of doors in radio communication operator.
The CF signal that the effect filtering power of wave filter 106 is larger, to prevent frequency spectrograph frequency mixer from being burnt out by CF signal on the one hand, CF signal is by after filtering on the other hand, and the attenuated inside of frequency spectrograph can be got to minimum, to reduce the dynamic range of the end of making an uproar, increase measurement.
Measure antenna 111 for received radiation harassing and wrecking, its effect is equivalent to a sensor, converts disturbance field strength to disturbance voltage.
Radio communication tester antenna 115 fixed placement, immediately below test table 114, is not rotated with the rotation of test table 114.
Consider that the end of making an uproar of the above frequency of receiver 1031GHz is higher, the surplus that the end of making an uproar of part high-frequency point converts between the field intensity of antenna measurement point and limit of disturbance is less than normal, therefore needs to carry out amplifying, compensating at measuring route front end access preamplifier 110.
Opertaing device 101 is control centers of system, by the control software design loaded, realizes the output of the reading to the control of instrument and equipment and measurement data, analysis, judgement and report above.
When carrying out electromagnetic compatibility test for non-wireless communication device, owing to not needing to carry out radio communication connection, therefore, radio communication tester 104, radio communication tester antenna 115 and wave filter 106 can be closed and do not used.
The present invention also provides a kind of radiation emission test method, and as shown in Figure 2, the method comprises:
Step S1, test obtains the radiation disturbance limit value of intelligent substation equipment.
This step can be divided into sweeps in advance and surveys two steps eventually:
Step S11, sweeping in advance as the mode by adopting the detection of peak value (PK) limit value, searching the emission maximum frequency of intelligent substation radiation of equipment harassing and wrecking rapidly.In the process, antenna tower move up and down from 1m ~ 4m with measurement antenna, and test table turns to the different azimuth (usually within the scope of 360 °, as-180 ° ~+180 °) relative to measuring antenna with intelligent substation equipment.
Step S12, survey eventually is choose several (being generally 6) emission maximum frequencies sweeping in advance in the data obtained, then test again on these frequencies, carry out according to the detecting way identified in limit value (quasi-peak value limit value or mean value limit value) when surveying eventually, test obtains the radiation disturbance limit value of intelligent substation equipment.In this step, because below 1GHz frequency range and 1GHz are with the measurement place of super band difference, the position that the toggle switch of preamplifier is residing under these two frequency ranges is simultaneously different (path loss is different) also, and the measurement of these two frequency ranges needs separately to carry out, namely as twice measurement.
Step S2, utilize the expanded uncertainty of this radiation emission test system to test to step S1 the radiation disturbance limit value obtained and revise, in this step, the expanded uncertainty of this radiation emission test system is according to following formulae discovery:
Wherein, n is total number of the uncertainty source component of described radiation emission test system; Ci is the sensitivity coefficient of i-th uncertainty source component; Ui is the uncertainty of i-th uncertainty source component; U (E) is the expanded uncertainty of described radiation emission test system; K is Coverage factor.
The expanded uncertainty of the radiation emission test system utilized in step S2 is determined in accordance with the following steps:
Step S21, the uncertainty source of analyzing radiation transmission test system, comprising: the main parameter of testing apparatus and the layout of instrument and equipment.
Step S22, the partial uncertainty caused by the parameter of main testing apparatus comprises: the damping capacity of the voltage readings of frequency spectrograph, the interconnection network between frequency spectrograph and measurement antenna, measure antenna factor, measure uncertainty that antenna factor introduces with height change, measure introduce antenna phase center position uncertainty, measure uncertainty that antenna factor Interpolation across frequency introduces, uncertainty that the imbalance of measuring antenna is introduced, the impact of measuring antenna cross-polarization.
Step S23, the partial uncertainty that the layout of instrument and equipment causes comprises: measure uncertainty that antenna and the indeterminacy of intelligent substation equipment room distance introduce, test table overhead highly inappropriate introducing uncertainty, measure the uncertainty that the mismatch error between antenna output end and receiver inlet introduces.
Step S24, sets up the mathematical model of the radiant field intensity of radiation emission test system according to partial uncertainty.
E＝Vr+Lc+AF+δVsw+δVPa+δVPr+δVnf+δM+δAFf
+δAFh+δAdir+δAph+δAcp+δAbal+δSA+δd+δh
Wherein, Vr is receiver voltage readings, dB μ V;
Lc is receiver and the damping capacity measuring the interconnection network between antenna, dB;
AF is for measuring antenna factor, dB/m;
δ Vsw is to the inaccurate modified value of receiver sine voltage, dB;
δ VPa is that receiver pulse height responds undesirable modified value, dB;
δ VPr is that receiver pulse repetition rate responds undesirable modified value, dB;
δ Vnf is the modified value of the local noise effect of receiver, dB;
δ M is the modified value of mismatch error, dB;
δ AFf is the modified value measuring antenna factor interpolated error, dB;
δ AFh measures the antenna factor of antenna factor with height change and standard dipole antenna with the modified value of the difference of height change, dB;
δ Adir is the modified value measuring antenna directivity, dB;
δ Aph is the modified value measuring antenna phase center position, dB;
δ Acp is the modified value measuring antenna cross-polarization response, dB;
δ Abal is for measuring the unbalanced modified value of antenna, dB;
δ SA is the modified value of imperfection site attenuation, dB;
δ d is for measuring antenna and the indeterminable modified value of measured piece spacing, dB;
δ h is test table overhead highly unsuitable modified value, dB.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. utilize radiation emission test system to carry out a method for radiation emission test, described radiation emission test system comprises: opertaing device, signal source, receiver, radio communication tester, radiofrequency signal processor, wave filter, radio-frequency cable, general purpose interface bus GPIB cable, anechoic chamber, preamplifier, measurement antenna, antenna tower, antenna cable, test table, radio communication tester antenna, pre-buried cable; Wherein, described preamplifier, measurement antenna, antenna tower, test table, radio communication tester antenna are arranged in described anechoic chamber; Described pre-buried cable burial is in the wall interiors or below ground of described anechoic chamber; Described test table, for bearing intelligent substation equipment, can drive described intelligent substation equipment at horizontal rotation in surface; Described radio communication tester antenna, is arranged at below described test table; Described measurement antenna, is fixedly installed on described antenna tower, and connects described preamplifier by described antenna cable; Described antenna tower, arrange with described test table setpoint distance of being separated by, described measurement antenna can be driven vertically to move up and down; Described radiofrequency signal processor, connects described signal source, receiver, radio communication tester and wave filter respectively by described radio-frequency cable; Described preamplifier and described radio communication tester antenna is connected respectively by described pre-buried cable; Described opertaing device, connects described signal source, receiver, radio communication tester, radiofrequency signal processor and wave filter respectively by described GPIB cable;
It is characterized in that, described method comprises:
Test obtains the radiation disturbance limit value of intelligent substation equipment;
The expanded uncertainty of described radiation emission test system is utilized to revise testing the radiation disturbance limit value obtained;
Wherein, the expanded uncertainty of described radiation emission test system is according to following formulae discovery:
Wherein, n is total number of the uncertainty source component of described radiation emission test system; Ci is the sensitivity coefficient of i-th uncertainty source component; Ui is the uncertainty of i-th uncertainty source component; U (E) is the expanded uncertainty of described radiation emission test system; K is Coverage factor;
Described uncertainty source component comprises: receiver voltage readings, the damping capacity of the interconnection network between receiver and measurement antenna, measure antenna factor, to the inaccurate modified value of receiver sine voltage, receiver pulse height responds undesirable modified value, receiver pulse repetition rate responds undesirable modified value, the modified value of the local noise effect of receiver, the modified value of mismatch error, measure the modified value of antenna factor interpolated error, measure the antenna factor of antenna factor with height change and standard dipole antenna with the modified value of the difference of height change, measure the modified value of antenna directivity, measure the modified value of antenna phase center position, measure the modified value of antenna cross-polarization response, measure the unbalanced modified value of antenna, the modified value of imperfection site attenuation, measurement antenna and intelligent substation equipment room are apart from indeterminable modified value, test table is from the unsuitable modified value of anechoic chamber, floor level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310399905.6A CN103616575B (en) | 2013-09-05 | 2013-09-05 | A kind of radiation emission test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310399905.6A CN103616575B (en) | 2013-09-05 | 2013-09-05 | A kind of radiation emission test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616575A CN103616575A (en) | 2014-03-05 |
| CN103616575B true CN103616575B (en) | 2016-03-02 |
Family
ID=50167280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310399905.6A Active CN103616575B (en) | 2013-09-05 | 2013-09-05 | A kind of radiation emission test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616575B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880633A (en) * | 2015-05-28 | 2015-09-02 | 快特电波科技(苏州)有限公司 | Large-scale medical equipment onsite test system and test method |
| CN105093014B (en) * | 2015-07-23 | 2017-10-10 | 山东省科学院自动化研究所 | A kind of Electromagnetic Interference Test method |
| CN105163342B (en) * | 2015-09-23 | 2018-12-11 | 北京交通大学 | The electromagnetic compatibility characteristic acquisition methods of the wireless device communication system of object-oriented |
| CN106771673B (en) * | 2017-03-07 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | A kind of GPS antenna directionality test method and system |
| CN107015068B (en) * | 2017-05-15 | 2019-10-29 | 广州视源电子科技股份有限公司 | A kind of EMC quasi-peak value test method and device |
| CN107884655A (en) * | 2017-12-14 | 2018-04-06 | 贵州航天计量测试技术研究所 | A kind of microwave camera bellows space attenuation calibrating installation and calibration method |
| CN108490280B (en) * | 2018-01-31 | 2020-06-16 | 中国人民解放军陆军工程大学 | Method for predicting in-band multi-frequency electromagnetic radiation effect by using frequency equipment and terminal equipment |
| CN108519529B (en) * | 2018-04-27 | 2020-08-14 | 中国空间技术研究院 | Improved electromagnetic disturbance characteristic testing method and system for electric propulsion system |
| CN108776272A (en) * | 2018-05-28 | 2018-11-09 | 煤炭科学技术研究院有限公司 | A kind of test system of frequency conversion equipment Electro Magnetic Compatibility |
| CN110739522A (en) * | 2018-07-20 | 2020-01-31 | 中车大连电力牵引研发中心有限公司 | radiation emission detection device and method |
| CN110967569B (en) * | 2018-09-30 | 2021-12-21 | 上海汽车集团股份有限公司 | Test system and vehicle test method |
| CN109787684A (en) * | 2019-03-22 | 2019-05-21 | 太仓市同维电子有限公司 | A kind of system for testing the ONU radiation-emitting with multiple ethernet ports |
| CN110687372A (en) * | 2019-09-24 | 2020-01-14 | 广东省医疗器械质量监督检验所 | Device and method for adjusting position of radiation emission test antenna tower |
| CN110865254A (en) * | 2019-11-21 | 2020-03-06 | 中汽研汽车检验中心（天津）有限公司 | Radiation emission testing method under interoperation condition of wireless charging system of electric vehicle |
| CN111366320A (en) * | 2020-03-20 | 2020-07-03 | 盐城摩因宝新材料有限公司 | Building pile foundation anti-seismic engineering detection system and detection method thereof |
| TWI747471B (en) * | 2020-09-03 | 2021-11-21 | 耕興股份有限公司 | High-speed stray radiation automatic test system and method |
| CN116500368B (en) * | 2023-06-27 | 2023-09-15 | 中汽研新能源汽车检验中心(天津)有限公司 | System for evaluating consistency of radiation emission tests among laboratories and testing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009776A (en) * | 1998-06-22 | 2000-01-14 | Advantest Corp | Radio communication characteristics testing device |
| CN101387680B (en) * | 2008-11-04 | 2011-04-06 | 信息产业部通信计量中心 | Multi-mould radio installation electromagnetical disturbance test system |
| JP2010127777A (en) * | 2008-11-27 | 2010-06-10 | Sumitomo Osaka Cement Co Ltd | Electric field measuring device |
| CN203422434U (en) * | 2013-09-05 | 2014-02-05 | 国家电网公司 | Radiation emission test system |
-
2013
- 2013-09-05 CN CN201310399905.6A patent/CN103616575B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103616575A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616575B (en) | A kind of radiation emission test method | |
| CN203422434U (en) | Radiation emission test system | |
| CN104849592B (en) | A kind of radio telescope wideband electromagnetic shield effectiveness detection system and detection method | |
| CN101207881A (en) | Apparatus and method for testing mobile terminal near field radiation | |
| CN103969559A (en) | Method and system for positioning local discharge space of power equipment of transformer substation | |
| CN203838296U (en) | Multi-path signal peak collection device based on partial-discharge spatial orientation system | |
| CN104601258A (en) | Multi-machine mutual-interference test method for vehicle-mounted communication systems in the same car | |
| CN102707160A (en) | Electromagnetic environment automated testing device for aviational radio navigation station and method thereof | |
| CN102946001B (en) | Antenna coupler coupled with logging-while-drilling resistivity apparatus | |
| CN103015970A (en) | Simulated detection equipment for measurement-while-drilling resistivity logging instrument | |
| CN100468068C (en) | Automatic detecting system and method for mobile phone radiation | |
| CN109030959A (en) | A kind of airborne ultra-short wave broadcasting station electromagnetic compatibility testing system and its test method | |
| CN204613328U (en) | A kind of radio telescope wideband electromagnetic shield effectiveness detection system | |
| CN102866329B (en) | GIS (Geographic Information System) local discharge monitoring device and method utilizing voltage sharing springs as detectors | |
| CN111693865A (en) | Motor cluster electromagnetic wave remote detection device and method based on SDR technology | |
| CN103592521B (en) | A kind of on-the-spot railway roadbed environment is to the method for testing of transponder frequency influence and system | |
| CN115032465A (en) | Radiation stray determination method, device and system | |
| CN203894401U (en) | Signal detection system applied to electric wave darkroom | |
| CN210534315U (en) | Ultrahigh frequency electromagnetic interference simulation system | |
| CN104902508A (en) | Performance testing device and method for wireless terminal | |
| CN104793060A (en) | Radiation emission testing method used for rail transit equipment | |
| CN201607497U (en) | Integrated testing system for safety of computer room | |
| CN212433282U (en) | Device for realizing electromagnetic compatibility radiation emission automatic test | |
| Stecher | Uncertainty in RF Emission Measurements: Revision of CISPR 16-4-2 | |
| Amaro et al. | IEEE 1901.1 Power Line Communication electromagnetic emission study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |