Impact Sensor: Description and Operation
Safety Sensor and Electric Sensor are built into the airbag control module.SAFETY SENSOR:
Safety Sensor is the pendulum type sensor. If the sensor receives a frontal impact exceeding a certain limit, the mass in the sensor revolves forward to turn the switch ON.
ELECTRIC SENSOR:
Electric sensor consists of the semiconductor type sensor which senses the deceleration at collision by the change of the electrical resistance and the impact sensing circuit.