Method and apparatus for testing a composite object, using tension waves

摘要

A method and apparatus for generating a tension wave (868). A beam of coherent light (864) is directed to an absorber surface (847) of a transducer structure (842). A compression wave (872) is generated within the transducer structure (842). The compression wave (872) is reflected on a reflecting surface (846) of the transducer structure (842) to form the tension wave (868). The tension wave (868) is directed through a test object (810) in a desired direction (867) using a configuration of the reflecting surface (846) relative to the test object (810).