Ultrasonic non-destructive testing

US8739629B2 · kind B2 · utility

Assignee

• IMPERIAL INNOVATIONS LIMITED · GB

Inventors

• Peter Cawley · Felton, GB
• Frederick Bert Cegla · Grafton, GB

Key dates

• Filing date: Dec 12, 2012
• Grant date: Jun 3, 2014
• Expiry date: Dec 12, 2032

Classification

• Technology area (CPC —): General

Abstract

An apparatus and method for ultrasonic non-destructive testing provides an elongate strip of ultrasound transmissive material coupled at a proximal end to an object under test. The elongate strip has a transverse cross-section with a width and thickness giving an aspect ratio greater than unity and matched to the ultrasonic transducer such that excitation induces a substantially non-dispersive ultrasonic signal to propagate along the elongate strip to the proximal end and to enter the object under test. These non-dispersive pulses are particularly suited for time-of-flight measurements, thickness measurements, crack measurements and the like. The elongate strip helps to separate the transducer from a potentially hostile environment associated with the object under test. The elongate strip also has a large area of contact with the object under test allowing efficient transmission of energy into the object under test.