High speed train bogie wheel pair modal analysis's test device

The utility model provides a high speed train bogie wheel pair modal analysis's test device, includes signal generator, power amplifier, vibration exciter, acceleration sensor, data collection card and PC, signal generator passes through the wire and connects and power amplifier, power amplifier passes through the wire and links to each other with the vibration exciter, the excitation head and the measured piece high speed train bogie wheel pair of vibration exciter contact, acceleration sensor's positive pole links to each other the minus earth with data collection card's collection port, data collection card passes through the data line and links to each other with the PC. The utility model discloses a mode of single -point excitation encourages of survey component, single -point excitation easy operation, and the cost is lower, can reach relatively good excitation effect moreover. The utility model discloses a piezoelectric type acceleration sensor, the vibrational acceleration signal that records the comp