Detection of a subsurface flaw with the total Internal Reflection Ultrasonic Sensor

Autor:	V. V. Danilov, Yuriy Pilgun, Alexander Yurchenko, Eugene Smirnov
Rok vydání:	2013
Předmět:	Fused quartz Total internal reflection Materials science business.industry Ultrasonic testing law.invention Optics law Insertion loss Ultrasonic sensor Prism business Single crystal Quartz health care economics and organizations
Zdroj:	2013 IEEE International Ultrasonics Symposium (IUS).
DOI:	10.1109/ultsym.2013.0049
Popis:	A novel ultrasonic sensor aimed specifically at detecting subsurface flaws is developed and investigated experimentally. The sensor exploits the phenomenon of frustrated total internal reflection and operates as a two-port device whose insertion loss is affected by a flaw beneath the surface of a tested object. It is designed as a prism of a TeO2 single crystal, which in the experiment was put in contact with tested specimens using an optical contact technique. An artificial “defect” in the defected specimen of fused quartz was an epoxy layer of 28 μm in thickness. Testing the flawless and defected specimens has shown a distinctive difference between the sensor responses that proves the sensor capability to detect a subsurface flaw.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ed01681143e14740e85bb2d9b2544afc https://doi.org/10.1109/ultsym.2013.0049 Zobrazit plný text záznamu