Patent ID: 11879814
Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The system of claim 1, wherein:
the system further comprises an accelerometer coupled to the first laser Doppler vibrometer to measure the vibration of the first laser Doppler vibrometer while the mobile defect detection platform travels along the railway track and an accelerometer coupled to the second laser Doppler vibrometer to measure the vibration of the second laser Doppler vibrometer while the mobile defect detection platform travels along the railway track; and
to detect the internal defect, the modal parameter analyzer is configured to subtract the vibration of the first laser Doppler vibrometer measured by the accelerometer from the vibration data captured by the first laser Doppler vibrometer and to subtract the vibration of the second laser Doppler vibrometer measured by the accelerometer from the vibration data captured by the second laser Doppler vibrometer.