Quantification of the Effectiveness of Handheld Equipment for Ground Verification of Detected Rail Internal Defects

Al-Nazer, Leith; Raslear, Thomas; Welander, Lucas R.; United States. Federal Railroad Administration. Office of Research and Development

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Quantification of the Effectiveness of Handheld Equipment for Ground Verification of Detected Rail Internal Defects

2014-04-01
By Al-Nazer, Leith ; Raslear, Thomas ; Welander, Lucas R.

[PDF-586.31 KB]

English

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Creators:

Al-Nazer, Leith ; Raslear, Thomas ; Welander, Lucas R.

Al-Nazer, Leith ; Raslear, Thomas ; Welander, Lucas R. Less -
Corporate Creators:

United States. Federal Railroad Administration. Office of Research and Development
Corporate Contributors:

Transportation Technology Center, Inc.
Subject/TRT Terms:

[+]

Defects Inspection Equipment Measures Of Effectiveness Phased Arrays Probes (Measuring Devices) Railroad Tracks Research Hub Testing Equipment Ultrasonic Tests
Publication/ Report Number:

DOT/FRA/ORD-14/07
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Railroad Administration. Office of Research and Development
Abstract:

The objective of this project was to quantify the effectiveness of the rail inspection ground verification process. More specifically, the project focused on comparing the effectiveness of conventional versus phased array probes to manually detect and size internal rail defects. Signal detection theory was used to quantify the effectiveness parameter. The results tentatively indicate that phased array technology has approximately the same sensitivity as conventional ultrasonic equipment, but there are preliminary indications that phased array technology may be more effective at sizing internal defects. However, follow-on studies with additional data collection are necessary in order to draw a more definitive conclusion.
Format:

PDF
Collection(s):

Federal Railroad Administration US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:65922f4420065a19bc06008d882fd5a52994b6ca3b361be275a64ee3daec067a
Download URL:

https://rosap.ntl.bts.gov/view/dot/28262/dot_28262_DS1.pdf
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Quantification of the Effectiveness of Handheld Equipment for Ground Verification of Detected Rail Internal Defects

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