N4L的IEC61000系列EMC测试系统为EMC抗扰度测试提供了完整的交钥匙解决方案。所述N4A AC + DC电源，PPA55x1和阻抗网络在一个简单的，方便的，符合性测试包的组合，以及直观的EMC测试软件（IECSoft）结果。

IEC61000 EMC测试系统 - ISO17025认证

*符合IEC61000 EMC测试系统（IEC61000-3-2，IEC61000-3-3，IEC61000-3-11，IEC61000-3-12，IEC61000-4-11，IEC61000-4-13，IEC61000-4-17，IEC61000 -4-29）

N4L的IEC61000系列EMC测试系统为EMC抗扰度测试提供了完整的交钥匙解决方案。所述N4A AC + DC电源，PPA55x1和阻抗网络在一个简单的，方便的，符合性测试包的组合，以及直观的EMC测试软件（IECSoft）结果。

N4L是世界上 的IEC61000 EMC测试系统制造商*与现场UKAS ISO17025校准实验室认可提供给IEC61000-3-2，IEC61000-3-3，IEC61000-4-7和IEC61000-4-15。校准和跟踪能力是EMC N4L UKAS实验室的一个重要方面。 N4L的IEC61000-4-15校准程序特别值得注意，因为它符合IEC61000-4-15附录C中详细描述的整个测试协议。 IEC61000-4-15中的特定参数在典型的闪烁校准过程中保持未经测试是司空见惯的。附件C测试协议内的所有测试都包含在N4L的认证和校准程序范围内。

IECSoft是EMC测试包的一个组成部分，集成了各种硬件组件并以清晰的方式显示数据。作为IECSoft灵活性的一个例子，用户能够将全面的测试数据发送给设计部门内的外部客户或同事。这是如何以协调和闪烁的方式完成的，从而可以显示测试结果（以报告形式）。 IEC61000-3-2 IEC 6000-3-2谐波失效5，IECSoft可以在EUT中找到在符合性测试失败的情况下，设计工程师。过去的EMC测试系统不适用搜索限制。

产品图片

6kVA单相IEC61000 EMC测试系统

IEC61000-3-2谐波图，限值

IEC61000-3-2谐波图，限制百分比

IEC61000-3-2谐波合规报告摘要页面

IEC61000-3-2谐波报告，表格

IEC61000-3-3 / 12闪烁实时显示

测试系统配置示例

以下是本页顶部表格中列出的 IEC / EN标准的谐波和闪烁解决方案示例。

测量要求

合规

分析仪

阻抗网络

校准

（可选）

交流电源

IEC61000电磁兼容测试

16Arms单相

IEC61000-3-2

IEC61000-3-3

IEC61000-4-11

IEC61000-4-13

IEC61000-4-17

IEC61000-4-29

PPA5500功率分析仪前视图无bg切碎200px

PPA5511谐波和

闪烁分析器

+

IMP161前面板200px
IMP161阻抗网络

+

UKAS_Logo
+

n4a06_small

N4A06交流电源

IEC61000电磁兼容测试

16Arms三相

IEC61000-3-2

IEC61000-3-3

IEC61000-4-11

IEC61000-4-13

IEC61000-4-17

IEC61000-4-29

PPA5500功率分析仪前视图无bg切碎200px
PPA5531谐波和

闪烁分析器

+

imp163 200px蓝色
IMP163阻抗网络

+

UKAS_Logo
+

n4a06_small

N4A18交流电源

IEC61000电磁兼容测试

32Arms三相

IEC61000-3-2 / IEC61000-3-3

IEC61000-3-11 / IEC61000-3-12

IEC61000-4-11

IEC61000-4-13

IEC61000-4-17

IEC61000-4-29

 PPA5500功率分析仪前视图无bg切碎200px
PPA5531谐波和

闪烁分析器

+

imp163 200px蓝色
IMP323阻抗网络

图为IMP163

+

UKAS_Logo
+

n4a06_small

N4A30交流电源

IEC61000电磁兼容测试

75Arms三相

IEC61000-3-2 / IEC61000-3-3

IEC61000-3-11 / IEC61000-3-12

IEC61000-4-11

IEC61000-4-13

IEC61000-4-17

IEC61000-4-29

 PPA5500功率分析仪前视图无bg切碎200px
PPA5531谐波和

闪烁分析器

+

 imp163 200px蓝色
IMP753阻抗网络

图为IMP163

+

UKAS_Logo
+

n4a06_small

N4A67交流电源

特点和优点

0.01％基本精度频率范围DC和10mHz至1MHz
*符合IEC61000-3-2*符合IEC61000-3-3
*符合IEC61000-3-11*符合IEC61000-3-12
*符合IEC61000-4-11*符合IEC61000-4-13
*符合IEC61000-4-17*符合IEC61000-4-17
预兼容IEC61000-4-29预兼容IEC61000-4-17
高精度内部分流器对任何外部分流器都具有出色的精度5毫安相位精度对于低功率因数应用是必需的
50 Arms（1000 Apk）和1000 Vrms（3000 Vpk）直接输入Stan...

Frequency Response Analyzers

	SFRA45 - Transformer Sweep Frequency Response Analyzer	PSM1700 - High Accuracy 100Vpk Input	PSM1735 – High Accuracy 0.01dB 35MHz	PSM3750 - High Accuracy 50MHz Bandwidth
Basic Accuracy	0.02dB	0.02dB	0.01dB	0.01dB
Phase Accuracy	0.025°	0.02°	0.02°	0.05°
Frequency Range	5Hz ~ 45MHz	10uHz ~ 1MHz	10uHz ~ 35MHz	10uHz ~ 50MHz

What is a Frequency Response Analyzer?

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A Frequency Response Analyzer (FRA) is a high precision measurement instrument used to analyze components, circuits and systems (known as devices under test, or DUT’s) in the frequency domain. An FRA typically generates a sinusoidal signal and injects it  into a component, circuit or system under test. This signal is measured at the point of injection using one of the input channels on the FRA, usually channel 1. The injection signal travels through the device under test and the same signal is measured simultaneously by the frequency response analyzer at a second reference point – normally the output of the system, using channel 2. The use of sinewaves allows the frequency domain behavior (the frequency response) of a system to be determined.

Frequency Response Analyzer connection to DUT

The diagram on the left illustrates a basic overview for connecting an FRA to a DUT, the signal generator and reference channel (CH1) are connected to the input of the DUT, CH2 is connected to the output of the DUT.

This connection method enables the frequency domain behavior (also known as the frequency response) of the DUT to be determined. The response of the DUT over a specific frequency range can be determined by performing a “sweep”, this involves stepping the injected frequency across a range of frequencies pre-selected by the user.

Frequency Response Analyzer block diagram

Once the test signals reach the inputs of the frequency response analyzer, they are signal conditioned with N4L proprietary ranging circuitry and then digitized via a high linearity ADC.

After digitization, the data is passed to the FPGA/DSP for discrete fourier analysis.

The DFT acts as a “notch filter” to extract only the injected signal frequency, all other frequencies are rejected.

For example, if a 1kHz signal is injected into the circuit by the FRA generator, the frequency response analyzer utilizes the  DFT process to extract the 1kHz component only from the signal passed to the FPGA.

Without the DFT process, the signal digitized by the frequency response analyzer would also contain noise. The DFT process provides excellent selectivity and very high (120dB) dynamic range.

The output of the DFT from both CH1 and CH2 are compared, with respect to both magnitude and phase shift. The absolute gain (CH2/CH1) is converted into a dB value and both dB gain and phase shift in degrees are displayed.

How can I use a Frequency Analyzer for my development work?

A frequency response analyzer should be considered as important as an oscilloscope to any hardware engineer, it is a primary design tool that would play an important role on any hardware engineers test bench. It is important to remember that N4L FRA’s are precision instruments, featuring calibrated inputs and offering measurement accuracies usually only seen within metrology.

An FRA can be used to characterize the gain/phase response of an input filter circuit, determine the AC signal behavior of a transistor, determine whether or not a servo motor control system is stable, enable an engineer to determine the transfer function of a device or subsystem. These are only a few of the many thousands of applications a frequency response analyzer can be applied to.

Example Applications

Control Loop Stability Analysis	Transistor Performance Analysis	Filter Design	Audio Amplifier Design	OptoCoupler Evaluation	Coax Cable Frequency Response	LDO Regulator Evaluation	Signal Transformer Performance Evaluation	Cross Talk Testing	RFI/EMC Filter Design

 

 

Wide bandwidth Frequency Response Analyzers Combined with Multi Function Measurement

In a world where engineers from many different application areas require ever increasing speed, flexibility and measurement accuracy, the PSM range is a new generation of versatile frequency response analyzers that offer leading performance in every mode without the compromise on accuracy or the additional cost that is commonly associated with such flexible instruments. Newtons4th utilise innovative modern technology and unique circuit design in our instruments to achieve such high accuracy without excessive cost.

The PSM range of instrumentation provide not just conventional frequency response measurements but can also be combined with an Impedance Analysis Interface to form a high accuracy impedance analyser, in the case of the PSM3750 this solution is able to provide impedance analysis up to 50MHz

Additional features include an oscilloscope function (PSM3750 + SFRA45) as well as Power Analyzer, Harmonic Analyzer and Vector Voltmeter modes.

Comparison table of complete Frequency Response Analyzer Range

 Standard         Option         Not Available

	SFRA45 - Transformer Sweep Frequency Response Analyzer	PSM1700 - High Accuracy 100Vpk Input	PSM1735 – High Accuracy 0.01dB 35MHz	PSM3750 - High Accuracy 50MHz Bandwidth
Basic Accuracy	0.02dB	0.02dB	0.01dB	0.01dB
Phase Accuracy	0.025°	0.02°	0.02°	0.05°
Frequency Range	5Hz ~ 45MHz	10uHz ~ 1MHz	10uHz ~ 35MHz	10uHz ~ 50MHz
Measurement	Real Time DFT	Real Time DFT	Real Time DFT	Real Time DFT
IAI Impedance Analysis Option Available
IAI Impedance Analysis Basic Accuracy		0.1%	0.1%	0.1%
LCR Active Head Option Available
LCR Active Head Accuracy		0.2%	0.2%
No. of Channels	2	2	2	2 or 3
True RMS Voltmeter
Oscilloscope
Isolated Generator
Isolated Inputs
Harmonic Analyzer
Power Analyzer
Input Max Voltage	10Vpk	100Vpk	10Vpk	500Vpk
No. of Ranges	9	9	9	16
USB Memory Port
LAN Port
GPIB Port
RS232 Port
Real Time Clock
19in Rack Mount Option
Internal Memory	1000 Records	8000 Records	8000 Records	16000 Records
Dimensions Excl. Feet (HxD mm)	305 x 230 x 45	170 x 350 x 250	170 x 350 x 250	92 x 215 x 312
Weight (Instrument)	2.7kg	4kg	4kg	3.3 - 3.5kg

Products in this series

• PSM1700 Frequency Response Analyzer

  PSM1700 Frequency Response Analyzer – Gain/Phase analysis of SMPS Feedback Loops, Filter Analysis and LCR Measurement capabilities

   View Product Details

• IAI Impedance Analyzer

  IAI: 4 wire Kelvin connected impedance analysis with increased measurement range and accuracy at frequencies up to 35MHz

   View Product Details

• PSM1735 – 10uHz to 35MHz Frequency Response Analyzer

  The PSM1735 offers a bandwidth of 35Mhz, able to provide 0.01dB and 0.01° accuracy. The PSM1735 is perfect for sensitive frequency response measurements.

   View Product Details

• PSM3750 Frequency Response Analyzer: 10µHz–50MHz – High Performance

  PSM3750 – Frequency Response Analyzer: Offers FRA, VVM, RMS Voltmeter, Oscilloscope, Harmonic Analyzer, Power Meter

   View Product Details

• SFRA45 Sweep Frequency Response Analyzer

  The N4L SFRA45 is the perfect measurement solution for sweep frequency response analysis of power transformers. Providing fast, reliable repeatable measurements.

   View Product Details

• PSM2201 – Discontinued May 2013

  Veqtor: 10µHz–2.4MHz – Low Signal Level High accuracy Frequency response analyser has now been replaced by the PSM3750

   View Product Details

• PSM2200 – Discontinued May 2013

  QuanteQ: 10µHz–2.4MHz – High voltage isolated Frequency Response Analyser has now been replaced by the PSM3750

   View Product Details

• Kanggaote Science and Technology

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