MIL STD 461 CE102 Conducted Emissions AC DC Power Lines Test
The MIL STD 461 CE102 test is a critical part of the conducted emissions testing suite, which evaluates how electronic devices and systems behave under various interference conditions. This test specifically measures the level of conducted electromagnetic interference (EMI) that a device emits on its AC/DC power lines. Conducted Emissions testing ensures that the equipment does not emit excessive levels of EMI that could interfere with other nearby electrical or electronic devices.
The MIL STD 461 standard is widely used by the military, aerospace, and defense industries to ensure compliance with electromagnetic compatibility (EMC) requirements for their products. The CE102 test is part of a comprehensive suite of tests designed to evaluate the susceptibility and robustness of equipment in various environments.
The conducted emissions test focuses on the power lines connecting the device under test (DUT) to its AC/DC supply. The goal is to measure how much EMI the DUT injects into the power lines, which could then propagate further into other devices connected to the same power infrastructure. Excessive emissions can cause interference with nearby systems, leading to malfunctions or even complete failure of critical equipment.
The test setup typically involves a calibrated AC/DC supply and a spectrum analyzer capable of measuring the conducted EMI over a specified frequency range. The DUT is powered through the AC/DC supply, and the emissions are measured as it operates under normal conditions. The frequency range for this test can vary depending on the specific requirements but commonly covers from 10 kHz to 30 MHz.
Preparation of the specimen involves ensuring that all components of the device under test are properly connected and configured in a way that mimics real-world use. This includes checking that all power connections, grounding, and other relevant interfaces are correctly set up before testing begins. The DUT should be powered on for at least 10 minutes to allow any transients to settle before measurements are taken.
The test setup also requires a controlled environment, such as an anechoic chamber or a屏蔽了
