What are the types of airbag sensors?

[Jayce]

There are two types of airbag sensors: trigger collision sensors and protective collision sensors. Trigger collision sensors are used to detect changes in acceleration during a collision and transmit the collision signal to the airbag control unit. Protective collision sensors are connected in series with trigger collision sensors to prevent accidental airbag deployment. Based on their structure, collision sensors can also be classified into electromechanical collision sensors, electronic collision sensors, and mechanical collision sensors. Protective collision sensors typically use an electronic structure, while trigger collision sensors usually employ an electromechanical hybrid or mechanical structure. Electronic collision sensors do not have electrical contacts, and the commonly used types include resistance strain type and piezoelectric effect type. Mechanical collision sensors utilize the conductive properties of mercury to control the connection and disconnection of the airbag circuit.