Location

La Jolla ,CA

Start Date

1-1-1989 12:00 AM

Description

Acoustic microscopes have become important NDE tools in recent years. For accurate and quantitative characterization, it is desirable to have a system capable of dealing with a wide variety of materials, to evaluate both bulk and surface wave properties, and to detect surface damage, subsurface cracks, bulk defects, etc. For this purpose, we have built a new and versatile acoustic microscope which measures both amplitude and phase in the frequency range of 1–200 MHz with selectable operation modes with longitudinal waves, shear waves, or both. The wide frequency range allows us to evaluate a variety of materials. The selectable operation modes enable us to measure different properties of materials and to detect different types of defects.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

8A

Chapter

Chapter 4: Probes and Sensors

Section

Ultrasonic Transducer Models and Measurements

Pages

865-871

DOI

10.1007/978-1-4613-0817-1_108

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Acoustic Microscopy with Mixed Mode Transducers

La Jolla ,CA

Acoustic microscopes have become important NDE tools in recent years. For accurate and quantitative characterization, it is desirable to have a system capable of dealing with a wide variety of materials, to evaluate both bulk and surface wave properties, and to detect surface damage, subsurface cracks, bulk defects, etc. For this purpose, we have built a new and versatile acoustic microscope which measures both amplitude and phase in the frequency range of 1–200 MHz with selectable operation modes with longitudinal waves, shear waves, or both. The wide frequency range allows us to evaluate a variety of materials. The selectable operation modes enable us to measure different properties of materials and to detect different types of defects.