OMNIDIREKTIONALER KOLLISIONSSENSOR

摘要

A stress wave sensor 1 comprising a piezoelectric film 28 and means therein 50 for connection to sensor electronics 42. The piezoelectric film 28 preferably comprises polyvinylidene fluoride. Also a stress wave sensor system and methods employing one or more such stress wave sensors, preferably attached to a vehicle transparent component, most preferably to the vehicle windshield 12.