Real-time monitoring of structural vibration using spectral-domain optical coherence tomography

We report in this paper the development of a spectral-domain optical coherence vibration tomography (OCVT) using a broadband CCD-based spectrometer and a short-coherence white light source. We demonstrate that both the vibration amplitude and frequency can be quantified, in the frequency range 0–250 Hz, with an axial resolution of 1 μm. Furthermore, the inner structure (layer thickness) of a vibrating sample can also be quantified simultaneously. The developed OCVT is non-contact and noninvasive in nature, thus is ideal for real time and in situ monitoring of low-frequency micro-vibrations that have critical impacts on many high-precision manufacturing and engineering processes.

[1]  B. Ramamoorthy,et al.  Digital speckle interferometry for assessment of surface roughness , 2008 .

[2]  Shen Dong,et al.  An Ultra-Low Frequency Parallel Connection Nonlinear Isolator for Precision Instruments , 2004 .

[3]  P. Taday,et al.  Development and Application of Terahertz Pulsed Imaging for Nondestructive Inspection of Pharmaceutical Tablet , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[4]  Bo Chen,et al.  Lissajous figures in the application of micro-vibration measurement , 2008 .

[5]  Robert B. Northrop,et al.  Introduction to Instrumentation and Measurements , 2018 .

[6]  A. Fercher,et al.  Optical coherence tomography - principles and applications , 2003 .

[7]  Takafumi Fujita,et al.  Application of Active Micro-vibration Control System using a Giant Magnetostrictive Actuator , 2007 .

[8]  Xide Li,et al.  Low-frequency harmonic vibration analysis with temporal speckle pattern interferometry , 2002 .

[9]  R. Newnham,et al.  Materials for high temperature acoustic and vibration sensors: A review , 1994 .

[10]  Shuncong Zhong,et al.  Response-only method for damage detection of beam-like structures using high accuracy frequencies with auxiliary mass spatial probing , 2008 .

[11]  Mark Bashkansky,et al.  Subsurface detection and characterization of Hertzian cracks in Si3N4 balls using optical coherence tomography , 2001 .

[12]  E. Jonathan.  In vivo sweat film layer thickness measured with Fourier-domain optical coherence tomography (FD-OCT) , 2008 .

[13]  张帆,et al.  Spectral Optical Coherence Tomography Using Two-Phase Shifting Method , 2005 .

[14]  T. Ichimura,et al.  Optical multimode frequency-domain reflectometer. , 1994, Optics letters.

[15]  Harald Sattmann,et al.  A thermal light source technique for optical coherence tomography , 2000 .

[16]  Scott Jordan,et al.  Vibration nullification of MEMS device using input shaping , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[17]  S. Boppart,et al.  Optical micro-scale mapping of dynamic biomechanical tissue properties. , 2008, Optics express.

[18]  M. Kaivola,et al.  Scanning heterodyne laser interferometer for phase-sensitive absolute-amplitude measurements of surface vibrations , 2008 .

[19]  Yaochun Shen,et al.  Real-time detection of laser-induced transient gratings and surface acoustic wave pulses with a Michelson interferometer , 1997 .

[20]  Kazuro Kageyama,et al.  Smart marine structures: an approach to the monitoring of ship structures with fiber-optic sensors , 1998 .

[21]  Ruikang K. Wang,et al.  Phase-sensitive optical coherence elastography for mapping tissue microstrains in real time , 2007 .

[22]  Pramod Rastogi,et al.  Phase shifting interferometry using a robust parameter estimation method , 2007 .