| 摘要 |
<p>A sensor (20, 200) comprising: an inertial mass (90, 280) movable from a first position to a second position in response to an acceleration or deceleration signal of predetermined amplitude and duration; electrical contacts and a conductor on the inertial mass (32, 34, 244, 40, 260) for indicating that the inertial mass has moved to the second position; an electrical conductor (130, 320), reactive with other elements of the sensor for generating an electro-magnetic force tending to dampen the motion of the inertial mass; and a magnetically attractive element or magnet (92, 220) for biasing the inertial mass towards the first position.</p> |
