Waiting
Login-Verarbeitung ...

Trial ends in Request Full Access Tell Your Colleague About Jove
Journal / Engineering / Subsurface Defect Localization by Structured…
JoVE Journal
Engineering

Ein Abonnement für JoVE ist erforderlich, um diesen Inhalt ansehen zu können. Melden Sie sich an oder starten Sie Ihre kostenlose Testversion.

JoVE Journal Engineering
Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
 

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

Article DOI: 10.3791/55733-v • 11:34 min • May 15th, 2017
May 15th, 2017 •
1, 1
1Department for Non-Destructive Testing, Thermographic Methods, Bundesanstalt für Materialforschung und -prüfung (BAM)

Kapitel

Summary
Automatic Translation

This method aims at locating vertical subsurface defects. Here, we couple a laser with a spatial light modulator and trigger its video input to heat a sample surface deterministically with two anti-phased modulated lines while acquiring highly resolved thermal images. The defect position is retrieved from evaluating thermal wave interference minima.

Tags

Subsurface Defect Localization Structured Heating Laser Projected Photothermal Thermography Non-destructive Testing Non-contact Inspection Thermal Imaging Perpendicularly Oriented Defects Thermal Wave Fields Laser Source Telescope Beam Sampler Power Meter Head Projector Development Kit Collimation
Read Article

Get cutting-edge science videos from JoVE sent straight to your inbox every month.

Waiting X
Simple Hit Counter