Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

Techniques for determining the covering thickness and diameter of reinforcing bars are needed in the evaluation of the existing strength of reinforced concrete structures. When eddy current testing is used with a relatively high test frequency, the covering thickness and diameter of the rebar can be determined simultaneously using relations between amplitude versus covering thickness and phase versus diameter. Neural networks were employed to estimate covering and diameter of rebar in this study. The phase waveform of the eddy signal generated by scanning the test coil along the surface of concrete was used for input data for the neural network.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

14A

Chapter

Chapter 3: Interpretive Signal Processing and Image Analysis

Section

Neural Nets

Pages

841-847

DOI

10.1007/978-1-4615-1987-4_105

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

Covering Thickness and Diameter Measurement of Reinforcing Bars by Eddy Current Testing Using Neural Network

Snowmass Village, CO

Techniques for determining the covering thickness and diameter of reinforcing bars are needed in the evaluation of the existing strength of reinforced concrete structures. When eddy current testing is used with a relatively high test frequency, the covering thickness and diameter of the rebar can be determined simultaneously using relations between amplitude versus covering thickness and phase versus diameter. Neural networks were employed to estimate covering and diameter of rebar in this study. The phase waveform of the eddy signal generated by scanning the test coil along the surface of concrete was used for input data for the neural network.