A portable vehicle acceleration signal acquisition system is developed.E-Box

an embedded computer

is taken as the main control unit.3-axis acceleration sensor’s selected as sensing units.The signal conditioning circuit

and the software of upper computer within the LabVIEW environment are developed.By using this system

the low-frequency motion acceleration and high-frequency vibration acceleration signals could be collected

processed

recorded and displayed quickly.The system is small sized and portable and can collect large quantities of datas.The test result shows that the system is stable and reliable

and can monitor the vehicle acceleration status accurately.