Location

Brunswick, ME

Start Date

1-1-1992 12:00 AM

Description

In a recent paper Huang and Achenbach [1] have reported the development of a dual-probe laser interferometer. In addition to the usual advantages of a laser interferometer such as no contact and point detection, the dual-probe interferometer measures the same signal at two points along its propagation path. Hence the instrument is particularly useful for the measurement of surface wave speed and attenuation. Such measurements provide valuable information on the near-surface material properties as well as the condition of the surface.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

11A

Chapter

Chapter 2: Evolving Techniques

Section

Laser Ultrasonics

Pages

593-600

DOI

10.1007/978-1-4615-3344-3_76

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Measurements of Local Surface Wave Speeds by a Dual-Probe Laser Interferometer

Brunswick, ME

In a recent paper Huang and Achenbach [1] have reported the development of a dual-probe laser interferometer. In addition to the usual advantages of a laser interferometer such as no contact and point detection, the dual-probe interferometer measures the same signal at two points along its propagation path. Hence the instrument is particularly useful for the measurement of surface wave speed and attenuation. Such measurements provide valuable information on the near-surface material properties as well as the condition of the surface.