Abstract
Surface and plate waves are commonly used to nondestructively inspect the near-surface region of a solid component for cracks and other defects due to, for example, structural fatigue. One particularly attractive method of generating and detecting such ultrasonic signals is laser based ultrasonics (LBU) [1]. In particular, because it is non-contact (i.e., does not require couplant), LBU can be implemented for inspection of limited access components using optical fibers, requiring only a small cross-sectional area for access. An example can be found in the inspection of internal surfaces of an aircraft wing as shown in Figure 1 where a contact method would obviously be difficult to apply. Furthermore, in cases where extremely high sensitivity is required, bandwidth reduction can be employed by concentrating the laser generated signal into a narrow frequency band.
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References
C. B. Scruby and L. E. Drain, Laser Ultrasonics (Adam Hilger, New York, 1990).
W. Wagner and J. B. Spicer, “Theoretical noise-limited sensitivity if classical interferometry,” J. Opt. Soc. Am. 4, 1316–1326 (1987).
Y. Yang, N. DeRidder, C. Ume and J. Jarzynski, “Non-contact optical fibre phased array generation of ultrasound for non-destructive evaluation of materials and processes,” Ultrasonics 31, 387–394 (1993).
A. J. A. Bruinsma and J. A. Vogel “Ultrasonic ncontact inspection system with optical fiber methods” Appl. Opt. 2722 4690–1695 1988.
P. Fomitchov, J. Scott Steckenrider, S. Krishnaswamy and J. D. Achenbach, “Low noise interferometric sensor for ultrasonic measurement,” in Review of Progress in Quantitative Nondestructive Evaluation (D. O. Thompson & D. E. Chimenti ed.), Vol 16 (these proceedings) (1996).
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© 1997 Springer Science+Business Media New York
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Wang, LS., Steckenrider, J.S., Achenbach, J.D. (1997). A Fiber-Based Laser Ultrasonic System for Remote Inspection of Limited Access Components. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Review of Progress in Quantitative Nondestructive Evaluation, vol 16. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5947-4_67
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DOI: https://doi.org/10.1007/978-1-4615-5947-4_67
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