FIELD: physics.
SUBSTANCE: invention relates to methods of testing lighting systems of vehicles for resistance to electromagnetic field. Vehicle is placed in a chamber protected from external factors and oriented relative to the field-forming system located in the chamber. In the area of the chamber with a minimum EMF level, a light flux parameter meter is installed. Optical interface is positioned with possibility of re-reflection of part of the light flux emitted by the lighting system to the light flux parameter meter. Calibration cycle of measurements of the light flux parameter of the system operating in a given mode with no high-frequency EMF is realized. Measured data are stored as calibration data. Then, a test cycle is performed to measure the light flux parameter of the system operating in a given mode when high-frequency EMF are present. Measured data are compared with calibration values. Lighting engineering system of the vehicle is considered to be noise-protected if the relative change of the redirected light flux parameter does not exceed the value of the standard noise-immunity of the system when exposed to high-frequency electromagnetic waves.
EFFECT: technical result when implementing the disclosed solution is the method of testing lighting systems for susceptibility to the electromagnetic field, which enables to verify the operability of systems by measuring and determination of quantitative parameters of light flux, taking into account measurement error, when exposed to high-frequency electromagnetic interference.
1 cl, 1 dwg
