| 摘要 |
The invention relates to an airbag device for a vehicle, especially for a motor vehicle, comprising an airbag which can be inflated with gas by means of a filling device. A sensor element is located on the side of the airbag which moves towards the passenger and is formed by two intersecting sensor strips (1,2) detecting pressure changes. The sensor strips (1,2) respond to local pressure changes and transmit said sensed pressure change in the form of a sensor signal to a control device. The amount of gas supplied by the filling device can be controlled in response to said sensor signal, enabling the inflation characteristics of the airbag to be controlled. The invention also relates to a sensor for local and/or time resolution force or pressure measurement. The sensor has resistor elements (5', 15') forming a matrix-type grid consisting of lines and columns of distanced contact areas (K) of the resistor elements (5', 15') . One electric resistor in a contact area (K) of two resistor elements (5', 15') is dependent on the force or pressure load of the contact area (K). The invention is characterized in that a voltage can be applied to least one of the resistor elements (5', 15') at least in one of the contact areas(K) by means of an electrically conducting element (4', 14', 20') which is electrically contacted to a resistor element (5', 15') in said contact area (K). |
