Cylindrical guided waves for damage detection in underground pipes using wavelet transforms

Rais Ahmad, Sourav Banerjee, Tribikram Kundu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper investigates if cylindrical guided waves can be effectively used for pipe wall defect detection in soil-embedded pipes. For this purpose guided waves are propagated through pipes that are buried in the soil by placing transmitters on one end of the pipes and the receivers on the other end. Received signals for both defect-free and defective pipes are subjected to wavelet transforms. It is found that when a Continuous Wavelet Transform (CWT) based algorithm is applied to analyze the received signals then it is very easy to make distinction between damaged and undamaged pipes. To investigate whether embedding the pipe in the soil makes it more difficult to detect the pipe wall defects, the same set of defective and defect-free pipes are analyzed before and after burying them in the soil. In both cases the defects are easily detected after analyzing the wavelet transformed signals. Interestingly it can be detected more easily for the buried pipes because the difference between the received signal strengths from defect-free and defective pipes is found to be greater for the buried pipes. For soil embedded pipes the ultrasonic energy scattered by the defect is absorbed by the surrounding soil making the energy reaching the receiver significantly weaker than that for the defect-free soil embedded pipe.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6174 II
DOIs
StatePublished - 2006
EventSmart Structures and Materials 2006 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States
Duration: Feb 27 2006Mar 2 2006

Other

OtherSmart Structures and Materials 2006 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
CountryUnited States
CitySan Diego, CA
Period2/27/063/2/06

Fingerprint

Guided electromagnetic wave propagation
Damage detection
wavelet analysis
Wavelet transforms
Pipe
damage
soils
Soils
defects
Defects
receivers
embedding
transmitters
Transmitters

Keywords

  • Continuous Wavelet transform
  • Damage Detection
  • Guided wave
  • Pipe Inspection
  • Signal Processing
  • Ultrasonic Transducers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Ahmad, R., Banerjee, S., & Kundu, T. (2006). Cylindrical guided waves for damage detection in underground pipes using wavelet transforms. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6174 II). [61742F] https://doi.org/10.1117/12.658758

Cylindrical guided waves for damage detection in underground pipes using wavelet transforms. / Ahmad, Rais; Banerjee, Sourav; Kundu, Tribikram.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6174 II 2006. 61742F.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ahmad, R, Banerjee, S & Kundu, T 2006, Cylindrical guided waves for damage detection in underground pipes using wavelet transforms. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6174 II, 61742F, Smart Structures and Materials 2006 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, CA, United States, 2/27/06. https://doi.org/10.1117/12.658758
Ahmad R, Banerjee S, Kundu T. Cylindrical guided waves for damage detection in underground pipes using wavelet transforms. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6174 II. 2006. 61742F https://doi.org/10.1117/12.658758
Ahmad, Rais ; Banerjee, Sourav ; Kundu, Tribikram. / Cylindrical guided waves for damage detection in underground pipes using wavelet transforms. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6174 II 2006.
@inproceedings{f96e9971939f4864904b1d2149caad07,
title = "Cylindrical guided waves for damage detection in underground pipes using wavelet transforms",
abstract = "This paper investigates if cylindrical guided waves can be effectively used for pipe wall defect detection in soil-embedded pipes. For this purpose guided waves are propagated through pipes that are buried in the soil by placing transmitters on one end of the pipes and the receivers on the other end. Received signals for both defect-free and defective pipes are subjected to wavelet transforms. It is found that when a Continuous Wavelet Transform (CWT) based algorithm is applied to analyze the received signals then it is very easy to make distinction between damaged and undamaged pipes. To investigate whether embedding the pipe in the soil makes it more difficult to detect the pipe wall defects, the same set of defective and defect-free pipes are analyzed before and after burying them in the soil. In both cases the defects are easily detected after analyzing the wavelet transformed signals. Interestingly it can be detected more easily for the buried pipes because the difference between the received signal strengths from defect-free and defective pipes is found to be greater for the buried pipes. For soil embedded pipes the ultrasonic energy scattered by the defect is absorbed by the surrounding soil making the energy reaching the receiver significantly weaker than that for the defect-free soil embedded pipe.",
keywords = "Continuous Wavelet transform, Damage Detection, Guided wave, Pipe Inspection, Signal Processing, Ultrasonic Transducers",
author = "Rais Ahmad and Sourav Banerjee and Tribikram Kundu",
year = "2006",
doi = "10.1117/12.658758",
language = "English (US)",
isbn = "0819462276",
volume = "6174 II",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

}

TY - GEN

T1 - Cylindrical guided waves for damage detection in underground pipes using wavelet transforms

AU - Ahmad, Rais

AU - Banerjee, Sourav

AU - Kundu, Tribikram

PY - 2006

Y1 - 2006

N2 - This paper investigates if cylindrical guided waves can be effectively used for pipe wall defect detection in soil-embedded pipes. For this purpose guided waves are propagated through pipes that are buried in the soil by placing transmitters on one end of the pipes and the receivers on the other end. Received signals for both defect-free and defective pipes are subjected to wavelet transforms. It is found that when a Continuous Wavelet Transform (CWT) based algorithm is applied to analyze the received signals then it is very easy to make distinction between damaged and undamaged pipes. To investigate whether embedding the pipe in the soil makes it more difficult to detect the pipe wall defects, the same set of defective and defect-free pipes are analyzed before and after burying them in the soil. In both cases the defects are easily detected after analyzing the wavelet transformed signals. Interestingly it can be detected more easily for the buried pipes because the difference between the received signal strengths from defect-free and defective pipes is found to be greater for the buried pipes. For soil embedded pipes the ultrasonic energy scattered by the defect is absorbed by the surrounding soil making the energy reaching the receiver significantly weaker than that for the defect-free soil embedded pipe.

AB - This paper investigates if cylindrical guided waves can be effectively used for pipe wall defect detection in soil-embedded pipes. For this purpose guided waves are propagated through pipes that are buried in the soil by placing transmitters on one end of the pipes and the receivers on the other end. Received signals for both defect-free and defective pipes are subjected to wavelet transforms. It is found that when a Continuous Wavelet Transform (CWT) based algorithm is applied to analyze the received signals then it is very easy to make distinction between damaged and undamaged pipes. To investigate whether embedding the pipe in the soil makes it more difficult to detect the pipe wall defects, the same set of defective and defect-free pipes are analyzed before and after burying them in the soil. In both cases the defects are easily detected after analyzing the wavelet transformed signals. Interestingly it can be detected more easily for the buried pipes because the difference between the received signal strengths from defect-free and defective pipes is found to be greater for the buried pipes. For soil embedded pipes the ultrasonic energy scattered by the defect is absorbed by the surrounding soil making the energy reaching the receiver significantly weaker than that for the defect-free soil embedded pipe.

KW - Continuous Wavelet transform

KW - Damage Detection

KW - Guided wave

KW - Pipe Inspection

KW - Signal Processing

KW - Ultrasonic Transducers

UR - http://www.scopus.com/inward/record.url?scp=33745951885&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745951885&partnerID=8YFLogxK

U2 - 10.1117/12.658758

DO - 10.1117/12.658758

M3 - Conference contribution

AN - SCOPUS:33745951885

SN - 0819462276

SN - 9780819462275

VL - 6174 II

BT - Proceedings of SPIE - The International Society for Optical Engineering

ER -