Specific items and contents of electromagnetic compatibility testing

Date：2023-07-07 15:50:26Views：245

In order to ensure Electromagnetic compatibility of electronic equipment, electromagnetic compatibility test is required. The main purpose of electromagnetic compatibility testing is to evaluate the compatibility of electronic devices in electromagnetic environments, that is, whether the devices can operate normally in electromagnetic environments and also whether they can cause interference to other devices and systems. This article summarizes some materials and hopes to provide valuable references for readers.

1. Radiation testing

Radiation testing evaluates compatibility by measuring the electromagnetic radiation generated by equipment in an electromagnetic environment. Radiation test needs to use antenna, Spectrum analyzer and other instruments, place the equipment in the EMC test room, and measure the intensity of radiated electromagnetic field of the equipment at different frequencies by adjusting the antenna and Spectrum analyzer. Specific projects include:

-Radiation field intensity test: measures the intensity of the radiated electromagnetic field of the equipment at different frequencies.

-Radiation emission test: Measure whether the radiated electromagnetic field intensity of the equipment at different frequencies meets national and regional standards.

-Radiation Immunity Test: Measure the equipment's ability to resist radiation interference at different frequencies.

2. Conduction test

Conduction testing evaluates compatibility by measuring the sensitivity of equipment to electromagnetic fields. Conduction testing requires the use of signal generators, power amplifiers, cables, and other instruments to apply electromagnetic fields to the input and output ports of the equipment, and to evaluate the compatibility of the equipment by measuring its output signals. Specific projects include:

-Conducted emission test: Measure whether the conducted electromagnetic field strength of the equipment at different frequencies meets national and regional standards.

-Conducted immunity test: measures the equipment's ability to resist conducted interference at different frequencies.

When conducting EMC testing, it is necessary to follow certain testing procedures and standards to ensure the accuracy and reliability of the testing. The testing process includes steps such as test preparation, test execution, test analysis, and test reports. At the same time, standards such as EN55022 and EN55024 formulated by the European Union or FCC Part 15 formulated by the Federal Communications Commission of the United States should be followed to ensure standardization and normalization of testing.

The specific projects of electromagnetic compatibility testing include two methods: radiation testing and conduction testing, which require the use of professional testing equipment and instruments and follow certain testing procedures and standards. The above is the "electromagnetic compatibility" related content brought about by this core detection, hoping to be helpful to everyone. We will bring more exciting content in the future. The company's testing services cover various testing projects, including electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection, and tape weaving. Welcome to call Chuangxin Testing, we will be happy to serve you.