Sliding vibration warning switch

摘要

A vibration sensor includes a housing having an opening, and a movable trigger retained within the housing by a resilient member. The moveable trigger includes a projection of a dimension to fit at least partially through the opening. The resilient member retains the movable trigger within the housing until overcome by a predetermined acceleration. Whereas the moveable trigger is maintained within the housing the vibration sensor is minimally affected by radial acceleration while providing a calibrated resistance which must be overcome by an acceleration of predetermined severity along the measured direction. When the sensor experiences a predetermined acceleration, the trigger slides within the housing until the projection encounters the opening. The projection then "pops" through the opening such that the projection encounters a switch which awakes and activates a transmitter to send a signal to a warning device. <IMAGE>