This diploma thesis focuses on electromagnetic immunity testing of left and right automotive
lights using the radiated immunity test method in accordance with ISO 11452-2 and the
manufacturer-specific standard BMW GS 95002-2. The theoretical part covers the basic
principles of electromagnetic compatibility, provides an overview of relevant EMC
(Electromagnetic Compatibility) standards, and describes the requirements for testing in an
anechoic chamber.
The practical part describes the preparation of the measurement system, electric field
calibration, test sample setup, and the measurement procedure over the frequency range from
200 MHz to 6 GHz. Changes in light output were monitored using an optical system that
allowed variations in light intensity to be detected.
The measurement results showed that the right automotive light met the requirements of the
manufacturer’s standard across the entire frequency range, as changes in light output
remained within the permitted limits. In contrast, the left automotive light showed increased
sensitivity at around 328 MHz, where the light output fell below the permitted limit. This
indicates that the component did not meet the electromagnetic immunity requirements at this
frequency.
The results show that even seemingly identical automotive lights can differ significantly in
their electromagnetic immunity. The thesis therefore highlights the importance of testing
automotive lights individually and of identifying and addressing potential EMC issues early in
the product development process.
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