Event Title

Multi-Stage Adaptive Noise Cancellation for Ultrasonic Nondestructive Evaluation

Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

A major source of noise or clutter in ultrasonic nondestructive evaluation (NDE) applications is due to the grain structure of the material. The scattering of ultrasonic waves from grain boundaries can interfere and introduce artifacts in the received signal that can sometimes mask indications due to a small flaw. For instance, the grain noise can hinder the detection of small but potentially dangerous flaws, such as hard-α inclusion in titanium alloy components [1]. In general, the grains are randomly distributed within a material. The grain noise is therefore spatially varying and can be modeled as a stochastic process [2].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18A

Chapter

Chapter 3: Simulations, Signal Processing, Tomography, and Holography

Section

Signal Processing and Analysis

Pages

781-787

DOI

10.1007/978-1-4615-4791-4_100

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Multi-Stage Adaptive Noise Cancellation for Ultrasonic Nondestructive Evaluation

Snowbird, UT, USA

A major source of noise or clutter in ultrasonic nondestructive evaluation (NDE) applications is due to the grain structure of the material. The scattering of ultrasonic waves from grain boundaries can interfere and introduce artifacts in the received signal that can sometimes mask indications due to a small flaw. For instance, the grain noise can hinder the detection of small but potentially dangerous flaws, such as hard-α inclusion in titanium alloy components [1]. In general, the grains are randomly distributed within a material. The grain noise is therefore spatially varying and can be modeled as a stochastic process [2].