Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Nondestructive evaluation of buried layers finds important applications in industry. In this paper we describe a fast, non-contact photothermal technique for thermoacoustic characterization of a thermoplastic layer sandwiched between two metal foils used in heat sealed food containers. For this particular application a non-contact measurement was required of the thickness of the polymer layer between two layers of aluminum in a heat sealed container rim at a speed of four locations of the container in 60 sec.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17B

Chapter

Chapter 5: Engineered Materials

Section

Coatings, Films and Bond

Pages

1299-1306

DOI

10.1007/978-1-4615-5339-7_168

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Buried Thermoplastic Layer Diagnostics by the Use of Photo-Thermo-Acoustic Radiometry

La Jolla, CA

Nondestructive evaluation of buried layers finds important applications in industry. In this paper we describe a fast, non-contact photothermal technique for thermoacoustic characterization of a thermoplastic layer sandwiched between two metal foils used in heat sealed food containers. For this particular application a non-contact measurement was required of the thickness of the polymer layer between two layers of aluminum in a heat sealed container rim at a speed of four locations of the container in 60 sec.