Deformation sensor for use in triggering a motor vehicle side impact air bag, comprises a resonating box that when compressed is de-tuned so that a resonance signal is lost

摘要

Deformation sensor, especially for detection of deformation of a motor vehicle side door, comprises a geometric construction (20), the deformation of which causes a loss of resonance. The loss of resonance is detected and indicates a deformation, causing an air bag to activate.