How to ensure EMC for industrial servo systems under high and low temperature vibration?

Servo systems operating in wide temperature ranges (e.g., -25°C to +70°C) and vibration environments may experience EMC performance degradation due to changes in material properties and loose connections. E-Tech Electronics' assurance measures include:

1) Component selection: Selecting components with operating temperature ranges that meet requirements, especially filter inductors (CMZ, PWR series) and capacitors (e.g., X7R, C0G).

2) Mechanical design: Ensuring all EMC-related connections (grounding bolts, shielding gaskets, filter mounting) have anti-loosening designs (e.g., toothed washers, spring washers).

3) Material stability: Conductive gaskets, shielding coatings, and other materials must undergo high and low temperature cycling tests to ensure their conductivity does not deteriorate.

4) Environmental testing: Products must undergo temperature cycling and vibration tests before EMC testing to verify their stability. For example, after vibration testing, the grounding resistance should still be <10mΩ, and the filter insertion loss change should be <20% at high temperatures.

Through targeted design and verification, the EMC reliability of servo products can be guaranteed for long-term operation in harsh environments, meeting the requirements of applications such as rail transportation and marine engineering.