Location

La Jolla, CA

Start Date

1-1-1993 12:00 AM

Description

The U.S. Navy requires periodic ultrasonic inspection (UT) of many of its piping systems. The inspections, which measure the wall thickness of the pipes, are performed to prevent failures due to corrosion[l], and to guide decisions regarding component life span/replacement. Often, the inspections are performed with digital thickness gages. These thickness gages perform their best when used on flat, smooth, parallel surfaces, and obviously, shipboard piping systems do not always meet these criteria. Typically, pipe diameters vary from less than one inch to greater than twelve inches. Many pipes have surface corrosion which can cause inaccurate measurements when using digital thickness gages. Additional measurement inaccuracies can result from pipes being in difficult to access locations. A case-in-point and motivation for this work is as follows

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

12B

Chapter

Chapter 6: Material Properties

Section

Corrosion

Pages

1987-1994

DOI

10.1007/978-1-4615-2848-7_254

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Ultrasonic Measurement of Pipe Thickness

La Jolla, CA

The U.S. Navy requires periodic ultrasonic inspection (UT) of many of its piping systems. The inspections, which measure the wall thickness of the pipes, are performed to prevent failures due to corrosion[l], and to guide decisions regarding component life span/replacement. Often, the inspections are performed with digital thickness gages. These thickness gages perform their best when used on flat, smooth, parallel surfaces, and obviously, shipboard piping systems do not always meet these criteria. Typically, pipe diameters vary from less than one inch to greater than twelve inches. Many pipes have surface corrosion which can cause inaccurate measurements when using digital thickness gages. Additional measurement inaccuracies can result from pipes being in difficult to access locations. A case-in-point and motivation for this work is as follows