We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Study of two-wave-mixing interferometric method in ultrasonic detection using BSO crystal

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Shitu Luo ; Coll. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China ; Yanling Wang ; Yukun Luo ; Chengguang Fan

Testing of the ultrasonic signal is an important matter in laser ultrasonic field. Because of the weakness of the surface vibration caused by ultrasonic, common methods can hardly satisfy the industry application commands. In this paper, a noncontact method, based on two-wave-mixing and the optical adaptivity of photorefractive crystals, is presented to detect the ultrasonic signal on a rough surface. The photorefractive effect and two-wave-mixing characteristics of photorefractive crystals are introduced, followed by the design of ultrasonic signal testing system using a photorefractive crystal, including the stray light collection, crystal protection from high voltage and noise suppression of optical maser. Finally, experiments are carried out to verify the performance of the system. The results show the ability of the system in ultrasonic vibration detection on a few? kinds of rough surfaces and material defect evaluation.

Published in:

Mechatronics and Automation (ICMA), 2012 International Conference on

Date of Conference:

5-8 Aug. 2012