Modal analysis of rotating plate using tracking laser Doppler vibrometer: algorithm modification

Hossam Khalil; Dongkyu Kim; Joonsik Nam; Kyihwan Park

doi:10.1117/12.2184447

1 July 2015 Modal analysis of rotating plate using tracking laser Doppler vibrometer: algorithm modification

Hossam Khalil, Dongkyu Kim, Joonsik Nam, Kyihwan Park

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 965524 (2015) https://doi.org/10.1117/12.2184447
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

A modified algorithm for tracking laser Doppler vibrometer (TLDV) is introduced to measure the vibration of rotating objects. The proposed algorithm unlike the old algorithm for TLDV can be used when the speed of the object to be tracked varies continuously or alternating in a small range. The proposed algorithm is to use encoder only as a position sensor. The position from the encoder is used to calculate the driving signals to the galvanometers. To verify the proposed method, experimental modal analysis of the circular plate in stationary and rotating cases are made.

Citation Download Citation

Hossam Khalil, Dongkyu Kim, Joonsik Nam, and Kyihwan Park "Modal analysis of rotating plate using tracking laser Doppler vibrometer: algorithm modification", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965524 (1 July 2015); https://doi.org/10.1117/12.2184447

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