Location

La Jolla, CA

Start Date

1-1-1987 12:00 AM

Description

The Air Force’s Retirement For Cause (RFC) ultrasonic system uses a low pressure water squirter system to couple the ultrasound to the engine part undergoing inspection. From an overall system point-of-view, there are many advantages in the use of the squirter as compared to the use of a standard immersion tank. Foremost of the advantages are the ease of use and ease of maintenance. However, from an NDE point of view (the reliable detection of small flaws) the squirter technique has several disadvantages. The squirter complicates the inspection process by adding factors such as a dynamic water column serving as the couplant, additional size, and many reflecting surfaces to the already difficult task of detecting flaws in the complex shapes of gas turbine engine components. The details of these problems and their solutions are discussed in this paper.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

6A

Chapter

Chapter 5: NDE Systems and Reliability

Section

System Design and Performance

Pages

915-923

DOI

10.1007/978-1-4613-1893-4_105

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Using a Squirter to Perform Pulse-Echo Ultrasonic Inspections of Gas Turbine Engine Components: The Pros and Cons

La Jolla, CA

The Air Force’s Retirement For Cause (RFC) ultrasonic system uses a low pressure water squirter system to couple the ultrasound to the engine part undergoing inspection. From an overall system point-of-view, there are many advantages in the use of the squirter as compared to the use of a standard immersion tank. Foremost of the advantages are the ease of use and ease of maintenance. However, from an NDE point of view (the reliable detection of small flaws) the squirter technique has several disadvantages. The squirter complicates the inspection process by adding factors such as a dynamic water column serving as the couplant, additional size, and many reflecting surfaces to the already difficult task of detecting flaws in the complex shapes of gas turbine engine components. The details of these problems and their solutions are discussed in this paper.