CN106680618A - Measuring device and measuring method for impulse intensity of EMI measuring system - Google Patents
Measuring device and measuring method for impulse intensity of EMI measuring system Download PDFInfo
- Publication number
- CN106680618A CN106680618A CN201611019471.2A CN201611019471A CN106680618A CN 106680618 A CN106680618 A CN 106680618A CN 201611019471 A CN201611019471 A CN 201611019471A CN 106680618 A CN106680618 A CN 106680618A
- Authority
- CN
- China
- Prior art keywords
- pulse
- broadband
- oscilloscope
- emi
- measuring
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 26
- 230000002238 attenuated effect Effects 0.000 claims description 5
- 238000000691 measurement method Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 230000004069 differentiation Effects 0.000 claims description 2
- 239000000523 sample Substances 0.000 claims 1
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
技术领域technical field
本发明涉及无线电电子学的电磁兼容领域,特别涉及EMI测量系统脉冲强度测量装置及测量方法。The invention relates to the electromagnetic compatibility field of radio electronics, in particular to a pulse strength measuring device and a measuring method of an EMI measuring system.
背景技术Background technique
随着武器型号系统的发展,系统中各种先进的电子设备越来越多,系统空间的电磁环境越来越复杂,电磁干扰对整个电子系统造成严重的影响。为了使电子系统能够稳定、可靠地工作,必须对系统中的部件进行电磁兼容测试,评估其是否满足总体电磁兼容设计的要求。电磁兼容测量设备的计量显得十分迫切。With the development of the weapon model system, there are more and more advanced electronic devices in the system, and the electromagnetic environment in the system space is becoming more and more complex. Electromagnetic interference has a serious impact on the entire electronic system. In order to make the electronic system work stably and reliably, the components in the system must be tested for electromagnetic compatibility to evaluate whether they meet the requirements of the overall electromagnetic compatibility design. The measurement of electromagnetic compatibility measuring equipment is very urgent.
国内每年举行电磁兼容测量试验室之间的比对, EMI测量系统中脉冲强度成为试验室之间测量不确定度的一个重要来源。根据国际标准CISPR16-1-1,将脉冲强度定义为某一脉冲电压对时间积分的面积,并按照工作频率将工作频段划分为4个波段,分别是 A波段(9 kHz~150kHz)、B波段(0.15MHz~30MHz)、C波段(30MHz~300MHz)、D波段(300MHz~1000MHz),同时规定各个波段输出脉冲信号要求,具体见表1。The comparison between electromagnetic compatibility measurement laboratories is held every year in China, and the pulse strength in the EMI measurement system has become an important source of measurement uncertainty between laboratories. According to the international standard CISPR16-1-1, the pulse intensity is defined as the area of a certain pulse voltage integrated with time, and the working frequency band is divided into 4 bands according to the working frequency, which are A band (9 kHz~150kHz), B band (0.15MHz~30MHz), C-band (30MHz~300MHz), D-band (300MHz~1000MHz), while specifying the output pulse signal requirements of each band, see Table 1 for details.
表1校准脉冲特性Table 1 Calibration Pulse Characteristics
综上,对脉冲强度参数的快速测量,是解决EMI测量系统脉冲强度的量值溯源的重要问题。In summary, the rapid measurement of pulse intensity parameters is an important problem in solving the traceability of the pulse intensity of the EMI measurement system.
发明内容Contents of the invention
本发明解决的问题是现有技术中需要一种可以实现对脉冲强度快速测量的技术;为解决所述问题,本发明提供一种EMI测量系统脉冲强度测量装置及测量方法。The problem solved by the present invention is that a technology that can realize rapid measurement of pulse strength is needed in the prior art; in order to solve the problem, the present invention provides a pulse strength measurement device and a measurement method for an EMI measurement system.
本发明提供的EMI测量系统脉冲强度测量装置包括:宽带衰减器、宽带示波器、PC机;宽带衰减器对脉冲信号作衰减处理;宽带示波器采集衰减处理后的脉冲信号,并计算脉冲强度;PC机控制宽带示波器。The EMI measurement system pulse strength measurement device provided by the invention comprises: broadband attenuator, broadband oscilloscope, PC; The broadband attenuator performs attenuation processing to pulse signal; The pulse signal after broadband oscilloscope collection attenuation process, and calculates pulse strength; PC Control a wideband oscilloscope.
进一步,所述宽带衰减器的峰值功率不小于100W。Further, the peak power of the broadband attenuator is not less than 100W.
进一步,所述宽带示波器的带宽大于11.7GHz。Further, the bandwidth of the broadband oscilloscope is greater than 11.7GHz.
本发明还提供采用所提供的EMI测量系统脉冲强度测量装置的脉冲强度测量方法,包括:步骤一、宽带衰减器采集EMI测量系统输出的脉冲信号,并进行衰减处理;步骤二、宽带示波器采集衰减处理后的脉冲信号,并计算脉冲强度;步骤三、根据采集的脉冲波形数据自动截取单脉冲波形并计算脉冲强度。The present invention also provides the pulse strength measurement method that adopts the provided EMI measurement system pulse strength measuring device, comprising: step 1, the pulse signal that the broadband attenuator collects the EMI measurement system output, and carries out attenuation processing; Step 2, the broadband oscilloscope collects the attenuation The processed pulse signal, and calculate the pulse intensity; step 3, automatically intercept the single pulse waveform and calculate the pulse intensity according to the collected pulse waveform data.
进一步,所述步骤三单脉冲波形自动截取。首先,通过控制示波器单次触发获取多周期脉冲波形,并对脉冲波形数据作数值微分,根据数值微分结果判断脉冲边沿,最后,根据脉冲边沿,截取单脉冲波形。Further, the single-pulse waveform in step 3 is automatically intercepted. First, the multi-period pulse waveform is obtained by controlling the oscilloscope to trigger once, and the pulse waveform data is numerically differentiated, and the pulse edge is judged according to the numerical differentiation result. Finally, the single pulse waveform is intercepted according to the pulse edge.
本发明的优点包括:通过宽带衰减及脉冲波形自动截取技术智能截取EMI校准脉冲波形并获得脉冲强度结果,实现对脉冲强度参数的快速测量,解决EMI测量系统脉冲强度的量值溯源问题。The advantages of the present invention include: intelligently intercepting EMI calibration pulse waveforms and obtaining pulse intensity results through broadband attenuation and pulse waveform automatic interception technology, realizing rapid measurement of pulse intensity parameters, and solving the problem of traceability of pulse intensity in EMI measurement systems.
附图说明Description of drawings
图1是本发明实施例提供的EMI测量系统脉冲强度测量装置的原理框图;Fig. 1 is the functional block diagram of the EMI measuring system pulse intensity measuring device that the embodiment of the present invention provides;
图2是本发明实施例提供的EMI测量系统脉冲强度测量方法的流程示意图。Fig. 2 is a schematic flowchart of a method for measuring pulse strength in an EMI measurement system according to an embodiment of the present invention.
具体实施方式detailed description
下文中,结合附图和实施例对本发明进行详细阐述。Hereinafter, the present invention will be described in detail with reference to the drawings and embodiments.
如图1所示,本发明实施例提供的EMI测量系统脉冲强度测量装置的包括: 宽带衰减器1、宽带示波器2、PC机3;宽带衰减器1采集EMI测量系统中的脉冲信号,对脉冲信号作衰减处理;宽带示波器2采集衰减处理后的脉冲信号,并计算脉冲强度;PC机3控制宽带示波器1。As shown in Figure 1, the EMI measuring system pulse intensity measuring device that the embodiment of the present invention provides comprises: broadband attenuator 1, broadband oscilloscope 2, PC 3; Broadband attenuator 1 gathers the pulse signal in EMI measuring system, to pulse The signal is attenuated; the broadband oscilloscope 2 collects the attenuated pulse signal and calculates the pulse intensity; the PC 3 controls the broadband oscilloscope 1 .
考虑到EMI测量系统脉冲信号幅度高,不能直接采集波形数据,需对脉冲信号作衰减处理。取脉冲信号幅度最大值64V,计算其峰值功率为81.9W,但是由于其脉宽窄,占空比极小,尽管脉冲信号的幅度很高,但它的有效能量很小。故本发明的实施例中选取峰值功率不小于100W的宽带衰减器。Considering the high pulse signal amplitude of the EMI measurement system, the waveform data cannot be collected directly, and the pulse signal needs to be attenuated. Taking the maximum pulse signal amplitude of 64V, its peak power is calculated to be 81.9W. However, due to its narrow pulse width and extremely small duty cycle, although the pulse signal has a high amplitude, its effective energy is very small. Therefore, in the embodiment of the present invention, a broadband attenuator with a peak power not less than 100W is selected.
宽带示波器2通过与宽带衰减器1连接的端口采集衰减后的脉冲波形,针对脉冲信号脉宽窄,占空比小的特点,数据采集需使用宽带示波器。脉冲信号脉宽最小为380ps,按照上升时间30ps计算,信号带宽=0.35/t=11.7GHz,为满足测量需求,需选用带宽大于11.7GHz的宽带示波器实现脉冲数据采集,从而保留原始信号丰富的频谱信息。The broadband oscilloscope 2 collects the attenuated pulse waveform through the port connected to the broadband attenuator 1. For the pulse signal with narrow pulse width and small duty cycle, a broadband oscilloscope is required for data collection. The minimum pulse width of the pulse signal is 380ps, calculated according to the rise time of 30ps, the signal bandwidth = 0.35/t = 11.7GHz, in order to meet the measurement requirements, it is necessary to use a broadband oscilloscope with a bandwidth greater than 11.7GHz to achieve pulse data acquisition, thereby retaining the rich spectrum of the original signal information.
PC机通过与宽带示波器连接的端口控制宽带示波器自动截取脉冲波形。脉冲强度的计算主要关注正脉冲波形,而EMI测量系统的脉冲信号占空比极小,势必增加脉冲波形获取难度。为此通过示波器自动触发与脉冲边沿自动获取的方法实现正脉冲波形的获取,并通过数值积分计算脉冲强度。The PC controls the wideband oscilloscope to automatically intercept the pulse waveform through the port connected to the wideband oscilloscope. The calculation of pulse strength mainly focuses on the positive pulse waveform, and the pulse signal duty cycle of the EMI measurement system is extremely small, which will inevitably increase the difficulty of obtaining the pulse waveform. For this purpose, the acquisition of the positive pulse waveform is achieved by means of automatic triggering of the oscilloscope and automatic acquisition of the pulse edge, and the pulse intensity is calculated by numerical integration.
图2,所示为采用本发明所提供的EMI测量系统脉冲强度测量装置的脉冲强度测量方法流程图。Fig. 2 is a flowchart of a pulse strength measurement method using the pulse strength measurement device of the EMI measurement system provided by the present invention.
本发明虽然已以较佳实施例公开如上,但其并不是用来限定本发明,任何本领域技术人员在不脱离本发明的精神和范围内,都可以利用上述揭示的方法和技术内容对本发明技术方案做出可能的变动和修改,因此,凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化及修饰,均属于本发明技术方案的保护范围。Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the methods disclosed above and technical content to analyze the present invention without departing from the spirit and scope of the present invention. Possible changes and modifications are made in the technical solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention, which do not depart from the content of the technical solution of the present invention, all belong to the technical solution of the present invention. protected range.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611019471.2A CN106680618A (en) | 2016-11-17 | 2016-11-17 | Measuring device and measuring method for impulse intensity of EMI measuring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201611019471.2A CN106680618A (en) | 2016-11-17 | 2016-11-17 | Measuring device and measuring method for impulse intensity of EMI measuring system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106680618A true CN106680618A (en) | 2017-05-17 |
Family
ID=58865750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611019471.2A Pending CN106680618A (en) | 2016-11-17 | 2016-11-17 | Measuring device and measuring method for impulse intensity of EMI measuring system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106680618A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1055607A (en) * | 1990-03-30 | 1991-10-23 | 上海新亚无线电厂 | A kind of high-precision pulse power measurement and device |
JPH1151974A (en) * | 1997-07-31 | 1999-02-26 | Nec Home Electron Ltd | Probe adapter |
CN1510426A (en) * | 2002-12-16 | 2004-07-07 | 伟 吴 | Electromagnetic interference diagnostic method and system |
CN103487788A (en) * | 2013-09-03 | 2014-01-01 | 中国电子科技集团公司第四十一研究所 | Method for rapidly and automatically extracting train pulse signals |
CN104849524A (en) * | 2015-05-19 | 2015-08-19 | 重庆大学 | Data acquisition system orienting high-power pulse signal and method thereof |
-
2016
- 2016-11-17 CN CN201611019471.2A patent/CN106680618A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1055607A (en) * | 1990-03-30 | 1991-10-23 | 上海新亚无线电厂 | A kind of high-precision pulse power measurement and device |
JPH1151974A (en) * | 1997-07-31 | 1999-02-26 | Nec Home Electron Ltd | Probe adapter |
CN1510426A (en) * | 2002-12-16 | 2004-07-07 | 伟 吴 | Electromagnetic interference diagnostic method and system |
CN103487788A (en) * | 2013-09-03 | 2014-01-01 | 中国电子科技集团公司第四十一研究所 | Method for rapidly and automatically extracting train pulse signals |
CN104849524A (en) * | 2015-05-19 | 2015-08-19 | 重庆大学 | Data acquisition system orienting high-power pulse signal and method thereof |
Non-Patent Citations (1)
Title |
---|
沈正传等: ""示波器测量脉冲信号的扩展思路"", 《泰州职业技术学院学报》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205193215U (en) | Multi -functional partial discharge detector | |
CN107329002B (en) | Equivalent test method for shielding effectiveness of shielding body in time domain under the action of strong electromagnetic pulse | |
CN105425106B (en) | A kind of Cable fault examination pilot system and its method of work | |
WO2015027664A1 (en) | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection | |
CN105388367B (en) | The sign and acquisition methods of electromagnetic environment inside a kind of narrow and small bay section | |
CN101499862B (en) | Mobile phone noise signal distinguishing method in electric appliance extra-high-frequency local discharging detection | |
CN107797033A (en) | A kind of detection platform to analogue transformer partial discharge test | |
CN104214798A (en) | Igniter performance testing system and method | |
CN103439676B (en) | A kind of method that UHF sensor sensitivity detects | |
CN107192902A (en) | A kind of cable conducted susceptibility waving map method using many Gaussian pulses | |
CN206114797U (en) | Anti interference test system of microwave frequency converter | |
CN106680618A (en) | Measuring device and measuring method for impulse intensity of EMI measuring system | |
CN204759426U (en) | Electromagnetism analytic system of crypto chip | |
CN104865508B (en) | The Recognition of Partial Discharge quantified based on packet | |
CN106680756A (en) | Testing method, system and device for accuracy grade of direct-current voltage transformer | |
CN102508124A (en) | Detection method of partial discharge of electrical equipment and device thereof | |
CN109975722B (en) | Detection method of radio frequency power supply | |
CN207281236U (en) | A kind of partial discharge of transformer emulation test system | |
CN103675593A (en) | Electrification testing system and method for zinc oxide arrester in armored cabinet | |
CN114509629B (en) | Precision self-adaptive cable conduction sensitivity time domain testing device and method | |
CN110045199A (en) | A kind of EFT/ESD/CS analysis of electromagnetic interference instrument | |
CN106019042A (en) | Method of identifying high voltage cable inner insulation defect type based on specific chromatograms | |
CN205142160U (en) | Synchronous degree of depth storage ns level pulse many reference amounts generator of power frequency | |
RU151305U1 (en) | MOBILE HARDWARE AND SOFTWARE COMPLEX FOR RESEARCH OF MEANS OF COMPUTING EQUIPMENT FOR SIDE ELECTROMAGNETIC RADIATIONS AND CIRCUITS | |
CN1841971A (en) | Method and system for debugging time-division duplex system power amplifier linearity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |