Welcome to CISPR 25: Automotive EMC Testing & Measurement Uncertainty, a technical training course designed for students, fresh graduates, engineers, technicians, and working professionals interested in automotive electromagnetic compatibility (EMC). In today’s automotive industry, vehicles are becoming increasingly dependent on electronic control units, sensors, communication systems, and electrical components. Ensuring that these electronic systems operate without generating unwanted electromagnetic interference is an important part of automotive EMC engineering.
CISPR 25 provides the framework for evaluating radio disturbance characteristics of automotive components and modules. This course introduces the essential concepts of CISPR 25 testing, with particular attention to conducted emissions, radiated emissions, test configurations, ALSE measurement techniques, and measurement uncertainty.
What Will You Learn?
Throughout this course, you will develop an understanding of:
- Fundamentals of CISPR 25 and automotive electromagnetic compatibility.
- Conducted emission testing using voltage and current measurement methods.
- Radiated emission testing using an Absorber-Lined Shielded Enclosure (ALSE).
- EMC test setup components, including LISN, current probes, antennas, cables, preamplifiers, and EMI receivers.
- ALSE validation concepts and standardized radiator arrangements.
- Antenna factor, cable attenuation, receiver characteristics, and mismatch.
- Frequency step uncertainty and noise-floor considerations.
- Measurement uncertainty sources and their contribution to overall test results.
- Combined standard uncertainty and expanded uncertainty.
- Interpretation of measurement uncertainty budgets for automotive EMC testing.
