emc test facility for large spatially extended systems

摘要

According to the law on electromagnetic compatibility of 1 January 1995 all electrical apparatus must have a certain resistance to interference by electromagnetic fields. Especially in the case of systems having large dimensions, such as trains, it is at present not possible to carry out such a test economically using conventional methods. The invention relates to a test device which makes such testing possible and beneficial. According to the invention, a test device consists of a novel arrangement of an impulse-generating wave guide (IEW) which consists of parallel, electrically conductive individual rods which are connected by a head electrode and, via a rail-like spark gap which is in a straight line with an impulse-conducting waveguide (IFW) which is identical in structure but longer, is closed at right angles with a terminating resistor. A return line is connected to said terminating resistor. Several of these IEW, IFW, return lines and terminating resistors arranged as described above can be connected in parallel in a modular manner via a shared release mechanism and therefore create a testing space suitable for a large system.