FREQUENCY SPECTRUM ANALYSIS OF ULTRASONIC PULSE EXCITED BY LASER AT METAL SURFACES
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Abstract
The frequency spectrum of laser-excited ultrasonic wave has been measured in various metals including aluminum, steel and copper, at both free and modified surfaces. The result shows that the material and surface modification affect the spectrum.
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BAI Yuhai, PEI Liwei, FANG Qiping, YAN Yuping. FREQUENCY SPECTRUM ANALYSIS OF ULTRASONIC PULSE EXCITED BY LASER AT METAL SURFACES[J]. Chin. Phys. Lett., 1990, 7(11): 500-502.
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BAI Yuhai, PEI Liwei, FANG Qiping, YAN Yuping. FREQUENCY SPECTRUM ANALYSIS OF ULTRASONIC PULSE EXCITED BY LASER AT METAL SURFACES[J]. Chin. Phys. Lett., 1990, 7(11): 500-502.
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BAI Yuhai, PEI Liwei, FANG Qiping, YAN Yuping. FREQUENCY SPECTRUM ANALYSIS OF ULTRASONIC PULSE EXCITED BY LASER AT METAL SURFACES[J]. Chin. Phys. Lett., 1990, 7(11): 500-502.
|
BAI Yuhai, PEI Liwei, FANG Qiping, YAN Yuping. FREQUENCY SPECTRUM ANALYSIS OF ULTRASONIC PULSE EXCITED BY LASER AT METAL SURFACES[J]. Chin. Phys. Lett., 1990, 7(11): 500-502.
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