Table 5 Test instrument.

Hammer

LC02

Sensitivity: 1 mV/N

Range: 5000 N

Size: 230 mm

Mass: 158 g

Generate excitation

Acceleration sensor

4335-B-001

Range: 0.3 Hz ~ 10 kHz

Sensitivity: 1 mv/ms²

Mass: 6 g

Collect vibration acceleration signals

Signal acquisition and analysis system

3050-A-060

Frequency range: 0 Hz ~ 51.2 kHz

Receive force signals and acceleration signals