Ultrasonic Transducers
Ultrasonic transducers are used for a variety of purposes such as flaw detection, thickness gauging, material research & medical diagnostics, biomedical applications , non-destructive application evaluations, penetration of thick materials. The basic mechanism used in these devices involves the transformation of sound energy into electrical energy and vice versa . The sound frequency used in these is usually in the range of one hundred kilohertz to fifty megahertz which is way above the normal human hearing range of twenty thousand hertz . The sound generated at these frequencies has a shorter wavelength that can reflect small surfaces and enable it to detect the defects inside solid materials such as metal and plastic. These devices use Piezo or ferroelectric material as an active element to detect flaws by converting the excitation pulse (electrical energy) generated from the flaw detector into ultrasonic energy. The transducer's performance is enhanced with the us...