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lock-in thermography

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Published: 01 August 2018
Fig. 12 Lock-in thermography (from left) with different modulation frequencies and flaw depth greater than, less than, and approximately equal to the thermal diffusion length More
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006464
EISBN: 978-1-62708-190-0
... surface. This article discusses the strategies for implementing thermography for NDE, including the steady-state/whole-body approach and transient heat conduction. It describes the most common signal-processing methods, such as thermographic signal reconstruction, lock-in thermography, and pulsed-phase...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006451
EISBN: 978-1-62708-190-0
... of components has become increasingly viable. Rajic et al. ( Ref 10 ) describes the use of low-cost microbolometers for structural health monitoring applications. It is important to differentiate between active thermography techniques such as lock-in thermography and TSA. In TSA the heat generation is a result...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003657
EISBN: 978-1-62708-182-5
.... Instrum. , Vol 71 , 2000 , p 2418 12. Rantala J. , Wu D. , and Busse G. , Amplitude Modulated Lock-in Vibrothermography for NDE of Polymers and Composites , Research in Nondestructive Evaluation , Vol 7 , No. 4 , 1995 , p 215 – 228 13. Perez I. and Davis...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003068
EISBN: 978-1-62708-200-6
... also alumina. ined in profile. Occur. alpha (Ix) cellulose. A very pure cellulose prepared andalusite. A mineral of composition Al2OySiO2 by special chemical treatment. used as a componem in refractories, spark plugs, insu- annealing point. That temperature at which internal lators, and wniteware...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6