Speeding

What is the force required for the shock sensor send a signal to the airbag?

when a car accident and moved with a speed unknown (eg 90 km / h), and suddenly the car hit a wall great and airbag on, this means that a force stopped the car to follow forward and let the shock sensors send a signal to the air bag light, I need to know how to determine this force? or the force related to the rate of car or human weight?

Some of them are little more than touch sensors mounted under the car near the front and "fire" in the front of vehicle has been deformed more than a certain amount. It takes a certain amount of force to deform the front of the car, and that force is related to the slowdown by "F = m * a". F is the force of deceleration, m is the mass of passengers in the car + +, etc lugage, a being of the slowdown (/ acceleration) I think the newer measure deceleration rates directly (so it's not triggered by the Vandals kicked in the underside of the car! But it does also simplify the design of the front of the car or the placement of the sensor). Some systems measure the mass of the driver and use that to determine quite what the slowing of firing the air bag.

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