Generation Laser Scanning Method for the Visualization of Ultrasounds Propagating on a 3-D Object with an Arbitrary Shape

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概要

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• We propose a generation laser scanning method for imaging of the propagation of ultrasounds. By scanning a pulsed-laser beam on an object for the generation of ultrasounds, the propagated ultrasounds were detected by a fixed PZT transducer. Although the detected waves were ultrasounds generated from different irradiation points, we could, by means of simple data processing, produce the dynamic images of the ultrasounds generated from the reception transducer position. Since this method requires no adjustment of the beam incident angle or beam focus, we can easily visualize the ultrasound propagating on a solid media having a complicated shape. The distinguishing feature of this method is its applicability in the field of inspection work.

• 一般社団法人 日本機械学会の論文

著者

• Toyama Nobuyuki

  Research Institute Of Instrumentation Frontier National Institute Of Advanced Industrial Science And

• Tsuda Hiroshi

  Research Institute of Instrumentation Fontier (RIIF)

• Takatsubo Junji

  Research Institute Of Instrumentation Frontier National Institute Of Advanced Industrial Science And

• WANG Bo

  Research Institute of Instrumentation Frontier, AIST

関連論文

• Nondestructive Evaluation of Holed CFRP Laminates by a New Technique to Visualize Propagation of Ultrasonic Waves
• Hybrid Sensing Technology and Diagnostic Technology(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering
• Laser-Generation Based Imaging of Ultrasonic Wave Propagation on Welded Steel Plates and Its Application to Defect Detection
• Generation Laser Scanning Method for the Visualization of Ultrasounds Propagating on a 3-D Object with an Arbitrary Shape
• Ultrasonic Spectroscopy for the Identification of Defects and Environmental Disturbances

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