Omni-directional crash sensor

Details Omni-directional crash sensor Omni-directional crash sensor

G - Physics

01

M

G01M 7/00 (2006.01) B60R 21/01 (2006.01)

Patent

CA 2473556

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).

L'invention concerne un capteur (1) d'ondes de contrainte comprenant un film piézoélectrique (28) et des moyens (50) de connexion à un dispositif électronique (42) de détection. Le film piézoélectrique (28) comprend, de préférence, du fluorure de polyvinylidène. L'invention concerne également un système de capteurs d'ondes de contrainte et des procédés dans lesquels sont utilisés un ou plusieurs de ces capteurs d'ondes de contrainte, de préférence fixés à un composant transparent du véhicule, et préférablement au pare-brise (12) du véhicule.

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