EM tolerance test chamber for electrical appts. - sets max. resonance field strength for desired test frequency by moving wall

摘要

The chamber tests the e.m. tolerance of electrical appts., components and systems using a metallic enclosed chamber screening and generators of e.m. E and H test fields. The test chamber (1) has a screened, slidable wall (2) in electrically conductive contact with the screening (7) of fixed walls (4), base (5) and lid surfaces (6) via spring contacts (3). By changing the position of the movable wall and the object under test (8) a max. resonance field strength for the desired test frequency can be set. E and H antennae are provided for feeding the test fields. ADVANTAGE - Higher test field strength.