Location

Williamsburg, VA

Start Date

1-1-1986 12:00 AM

Description

Conventional ultrasonic investigation of defects in the bulk of complex materials is a common industrial technique. A usual procedure is to scan the specimen in a water bath, where the ultrasonic transducer transmits waves into the investigated material. When the propagating waves reach acoustical discontinuities such as defects, partial reflection occurs. The reflected waves are detected by the transducer, and a graphical representation of the integrity of the specimen is displayed. Some advanced systems even correct for simple attenuation.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

5A

Chapter

Chapter 3: Sensors and Signal Processing

Section

Signal Processing

Pages

767-772

DOI

10.1007/978-1-4615-7763-8_81

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Energy Shadowing Correction of Ultrasonic Pulse-Echo Records by Digital Signal Processing

Williamsburg, VA

Conventional ultrasonic investigation of defects in the bulk of complex materials is a common industrial technique. A usual procedure is to scan the specimen in a water bath, where the ultrasonic transducer transmits waves into the investigated material. When the propagating waves reach acoustical discontinuities such as defects, partial reflection occurs. The reflected waves are detected by the transducer, and a graphical representation of the integrity of the specimen is displayed. Some advanced systems even correct for simple attenuation.