Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

Recently, improvements in instrumentation have provided the option of gas- or air-coupled ultrasonic testing as a realistic alternative to immersion or contact testing. In this paper we present theoretical and experimental results on resonant sound transmission methods mediated by ultrasonic coupling directly through ambient air. Although these methods are not new [1], they have only recently been considered for MHz applications. Advances in transducer technology [2–5] have further improved signal to noise ratios.

Volume

15A

Chapter

Chapter 4: NDE Sensors

Section

Ultrasonic Transducers (Air Coupled)

Pages

1059-1066

DOI

10.1007/978-1-4613-0383-1_138

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Air-Coupled Ultrasound and Leaky Lamb Waves in Composites

Seattle, WA

Recently, improvements in instrumentation have provided the option of gas- or air-coupled ultrasonic testing as a realistic alternative to immersion or contact testing. In this paper we present theoretical and experimental results on resonant sound transmission methods mediated by ultrasonic coupling directly through ambient air. Although these methods are not new [1], they have only recently been considered for MHz applications. Advances in transducer technology [2–5] have further improved signal to noise ratios.