Many industrial buildings rely on ultrasound instruments that continually monitor the structural integrity of their systems without damaging or altering their features. One new technique draws on laser technology and candle soot to generate effective ultrasonic waves for nondestructive testing and evaluation. Researchers are using ultrasonic nondestructive testing that involves amplifying the signal from a photoacoustic laser source using laser-absorbing patch made from an array of nanoparticles from candle soot and polydimethylsiloxane.
from Top Technology News -- ScienceDaily https://ift.tt/2PJeDel
Wednesday, 4 September 2019
Laser-based ultrasound approach provides new direction for nondestructive testing
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