Research on Application of Micro-Nano Acceleration Sensor in Monitoring the Vibration State of Vehicles

摘要

In order to master the real-time vibration state information of vehicles in driving process and reduce the rollover probability of vehicles. A kind of method based on micro-nano acceleration sensor of monitoring the vibration of vehicles on-line is proposed. The change of capacitance in the sensor is in proportional relation to the vibration acceleration of vehicles. According to this characteristic, we can acquire the vibration acceleration magnitude by monitoring the change magnitude and direction of the capacitance. The experimental results and theoretical analysis show that this sensor has the advantages of high precision, good stability and linearity, high sensitivity. It can correctly reflect the vibration state of vehicle when running