Method and system for laser ultrasonic imaging of an object

Details Method and system for laser ultrasonic imaging of an object Method and system for laser ultrasonic imaging of an object

1996-04-01

1998-09-01

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73620, 73643, 73655, 73657, 600443, 600444, G01N 2906, G01N 2910, G01N 2922

Patent

active

058013121

ABSTRACT:
The present invention discloses a method and system for laser ultrasonic imaging an object. In the present invention, a synthetic aperture focusing technique (SAFT) is used to generate a high resolution subsurface images of the object. In addition, the present invention filters low frequency components from detected laser ultrasound waveform data to further enhance resolution, SNR, and contrast. Geometric knowledge permits the present invention to generate images of objects having a complex and arbitrary-shape.

REFERENCES:
patent: 3548642 (1970-12-01), Flaherty et al.
patent: 3978713 (1976-09-01), Penney
patent: 4164740 (1979-08-01), Constant
patent: 4597292 (1986-07-01), Fujii et al.
patent: 4841489 (1989-06-01), Ozaki et al.
patent: 5384573 (1995-01-01), Turpin
patent: 5549002 (1996-08-01), Howard et al.
patent: 5608166 (1997-03-01), Monchalin et al.
patent: 5615675 (1997-04-01), O'Donnell et al.
"Imaging Defects With Laser Ultrasound" By DA Hutchins, et al, Nondestructive Testing Communications, vol. 5, No. 2-3, 1990 (UK), pp. 85-96.
"A New System for Real-Time Synthetic Aperture Ultrasonic Imaging" By Y. Ozaki, et al, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 35, No. 6, Nov. 1988, pp. 828-838.

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