1-11 of 11 Search Results for

thermographic signal reconstruction

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 August 2018
Fig. 10 (a) Unprocessed and (b) thermographic signal reconstruction first-derivative images of a five-ply carbon-fiber-reinforced polymer panel on aluminum honeycomb core with polymer foreign object debris at the skin-core interface 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...
Image
Published: 01 August 2018
Fig. 1 Frame from a vibrothermography thermal image sequence showing a crack heating at the center of a rectangular specimen. A thermographic signal reconstruction enhancement of the background-subtracted temperature increase is superimposed on the raw thermal image. This frame also More
Image
Published: 01 August 2018
inserts at the same depth (between plies 6 and 7) only appear in (b) the thermographic signal reconstruction (TSR) second-derivative maximum time image, which shows the transit time of heat through the panel. The inserts act to delay the arrival of heat at the back wall in the plot of (d) the second More
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006444
EISBN: 978-1-62708-190-0
... a vibrothermography thermal image sequence showing a crack heating at the center of a rectangular specimen. A thermographic signal reconstruction enhancement of the background-subtracted temperature increase is superimposed on the raw thermal image. This frame also illustrates several sources of thermal interference...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006954
EISBN: 978-1-62708-439-0
... and is related to the collection angle of the optics ( Ref 36 , 37 ), which is typically constant for a thermographic system. For a linear camera (see the section “ Detector Linearity and Dynamic Range ” in this article), the signal S is proportional to the received radiant energy (received radiant power...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
...-transmission (TT) ultrasonics and pulse-echo (PE) ultrasonics. The TT method uses two transducers, one on each side of the part, to measure the acoustic attenuation through the structure. One transducer is the transmitter and is electronically pulsed to produce an ultrasonic signal, and the other transducer...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
...-transmission (TT) ultrasonics and pulse-echo (PE) ultrasonics. The TT method uses two transducers, one on each side of the part, to measure the acoustic attenuation through the structure. One transducer is the transmitter and is electronically pulsed to produce an ultrasonic signal, and the other transducer...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.9781627081900
EISBN: 978-1-62708-190-0
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006447
EISBN: 978-1-62708-190-0
... the signals to recognizable image patterns. Sight clarity is affected by the threshold of the inspector’s eye resolution capability, aging, and fatigue, while information processing is affected by attention, perception, and memory capabilities. Two point sources produce two point spread functions (PSFs...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.9781627084390
EISBN: 978-1-62708-439-0