SHOCK DETECTOR Russian patent published in 2000 - IPC

FIELD: alarm security systems. SUBSTANCE: device has magnetic unit and inductance coil, which are mounted in housing stationary. Said inductance coil is connected to input of second converter, second output is connected to first input of triggering unit. Second input of triggering unit is connected to control input of detector. Outputs of triggering unit are designed as outputs for alarm and warning signal of detector. In addition device has hollow cylindrical working chamber, which is mounted stationary in close proximity to inductance coil. Central longitudinal axis of working chamber passes through both poles of magnetic unit. Inner hollow of working chamber contains permanent magnet, which is mounted for free longitudinal movement. Poles of permanent magnet are oriented about longitudinal axis of working chamber according poles of magnetic unit. EFFECT: increased sensitivity. 10 cl, 2 dwg