Car air bag sensor. Coloured scanning electron micrograph (SEM) of the surface of a micro- accelerometer from a car's air bag. A pencil tip is shown for scale. The mauve squares are tiny pressure sensors which detect the rapid deceleration which occurs in a crash. They trigger a circuit which starts the rapid inflation of a plastic bag with air or nitrogen gas. The air bag deploys between the driver and the steering wheel in about one fifth of a second,preventing injury as the driver is thrown forward. Magnification: x35 at 7x4.5cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Steger, Volker |
Taille de l’image : | 3138 px × 2149 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |