ACCELERATION RESPONSIVE DEVICE

摘要

It is proposed to improve acceleration responsive devices which comprise an electronic accelerometer (11) adapted to provide an analogue electrical signal output representative of acceleration detected together with an integrator (14) and an operating circuit (22) enabled by the integrator output above a predetermined level, the improvement comprising an analogue/digital converter (12) to provide a digital signal in response to the accelerometer output representative to the acceleration detected, the integrator (14) being arranged to integrate the digital signal.