Next Article in Journal
Theoretical Study: High Harmonic Generation by Light Transients
Previous Article in Journal
Contact Pressure Algorithm of Multi-Layer Interference Fit Considering Centrifugal Force and Temperature Gradient
Previous Article in Special Issue
Rapid High-Resolution Wavenumber Extraction from Ultrasonic Guided Waves Using Adaptive Array Signal Processing
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Appl. Sci. 2018, 8(5), 727; https://doi.org/10.3390/app8050727

A Hybrid Ultrasonic Guided Wave-Fiber Optic System for Flaw Detection in Pipe

1
FBS, Inc. dba Guidedwave, 450 Rolling Ridge Drive, Bellefonte, PA 16823, USA
2
Department of Earth and Engineering Sciences, Pennsylvania State University, University Park, PA 16802, USA
3
Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824-1226, USA
*
Author to whom correspondence should be addressed.
Received: 11 April 2018 / Revised: 30 April 2018 / Accepted: 2 May 2018 / Published: 5 May 2018
(This article belongs to the Special Issue Ultrasonic Guided Waves)
View Full-Text   |   Download PDF [2421 KB, uploaded 5 May 2018]   |  

Abstract

The work presented in this paper shows that Fiber Bragg Grating (FBG) optical fiber sensors can potentially be used as receivers in a long-range guided wave torsional-mode pipe inspection system. Benefits over the conventional pulse-echo method arise due to reduced total travel distance of the ultrasonic guided wave reflections, since reflections from defects and structural features do not need to propagate a full round trip back to the transmitting collar. This is especially important in pipe configurations with high attenuation, such as coated and buried pipelines. The use of FBGs as receivers instead of conventional piezoelectric or magnetostrictive elements also significantly reduces cabling, since multiple FBG receivers can be placed along a single optical fiber which has a diameter on the order of only around 100 μm. The basic approach and sample results are presented in the paper. Additionally, a brief overview of some topics in ultrasonic guided waves is presented as a background to understand the inspection problem presented here. View Full-Text
Keywords: ultrasonic guided waves; fiber optics; fiber Bragg grating; nondestructive testing; structural health monitoring; pipe inspection ultrasonic guided waves; fiber optics; fiber Bragg grating; nondestructive testing; structural health monitoring; pipe inspection
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Rose, J.L.; Philtron, J.; Liu, G.; Zhu, Y.; Han, M. A Hybrid Ultrasonic Guided Wave-Fiber Optic System for Flaw Detection in Pipe. Appl. Sci. 2018, 8, 727.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top