Localization of Subsurface Defects in Uncoated Aluminum with Structured Heating Using High-Power VCSEL Laser Arrays

Abstract We report on photothermal detection of subsurface defects by coherent superposition of thermal wave fields. This is made possible by structured heating using high-power VCSEL laser arrays whose individual emitter groups can be arbitrarily controlled. In order to locate the defects, we have...
Ausführliche Beschreibung

Gespeichert in:
Autor*in:

Thiel, E. [verfasserIn]

Ziegler, M. [verfasserIn]

Studemund, T. [verfasserIn]

Format:

E-Artikel

Sprache:

Englisch

Erschienen:

2019

Schlagwörter:

Heat diffusion

Structured heating

Subsurface defects

Thermal wave

VCSEL

Wavelet transformation

Übergeordnetes Werk:

Enthalten in: International journal of thermophysics - New York, NY : Springer Science + Business Media B.V., 1980, 40(2019), 2 vom: 10. Jan.

Übergeordnetes Werk:

volume:40 ; year:2019 ; number:2 ; day:10 ; month:01

Links:

Volltext

DOI / URN:

10.1007/s10765-018-2478-9

Katalog-ID:

SPR013119419

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