Solid state simulation of movements for the test of volumetric intrusion detectors

The determination of sensitivity changes of volumetric intrusion detectors by means of walk tests is current practice in many test laboratories but suffers from repeatability. This situation is of special importance in relation to approval tests. A concept was worked out in order to determine the response threshold value of intrusion detectors by means of a test apparatus which fits in a normal room and is able to test even dual technology detectors. The apparatus utilises a solid state design for passive infrared detector testing as well as for the test of Doppler detectors.