Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

The current method for measuring chrome loss in chrome-plated barrels is by manually operated borescopes. The operator slowly translates the borescope down the barrel and notes the location and area of each patch of chrome loss. This method is time consuming and subjective. This paper describes an automated system for quantitative measurement of chrome loss in the 120-mm M1A1 tank barrel. The same principles used to determine chrome loss are also used in other systems to identify and quantify a wide variety of internal flaws in barrels or tubes. Along with quantification of internal surface flaws, the described system precisely measures the inside diameter of the tube being inspected. This capability allows chrome loss and diameter measurements to be taken during one measurement sequence and eliminates the need for two separate inspections and associated setup times.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

15B

Chapter

Chapter 8: Systems, New Techniques and Process Control

Section

New Techniques

Pages

2181-2188

DOI

10.1007/978-1-4613-0383-1_286

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Quantitative Measurement of Chrome Loss by Optical Means

Seattle, WA

The current method for measuring chrome loss in chrome-plated barrels is by manually operated borescopes. The operator slowly translates the borescope down the barrel and notes the location and area of each patch of chrome loss. This method is time consuming and subjective. This paper describes an automated system for quantitative measurement of chrome loss in the 120-mm M1A1 tank barrel. The same principles used to determine chrome loss are also used in other systems to identify and quantify a wide variety of internal flaws in barrels or tubes. Along with quantification of internal surface flaws, the described system precisely measures the inside diameter of the tube being inspected. This capability allows chrome loss and diameter measurements to be taken during one measurement sequence and eliminates the need for two separate inspections and associated setup times.