The high frequency resonance is generated usually by velocity detector used inseam survey. It is resulted from the secondary resonance due to the transverseexcitation.
槽波测量用速度检波器常产生高频谐振，是由于横向激励引起的二次谐振所致。
2
By the adoption of transverse light excitation and differential reception the detection SNR is increased.
由于采用了横向光激发和差动接收，使检测的信噪比得到了提高。
3
The mode response of a steel truss bridge was analyzed by ANSYS and its seismic responses under transverse and longitudinal excitation were calculated using time-history analysis function.