A transducer for generating and detecting surface elastic waves in a non-piezoelectric material may include an interdigital electrode array... Show moreA transducer for generating and detecting surface elastic waves in a non-piezoelectric material may include an interdigital electrode array coupled to a piezoelectric crystal. The crystal is mechanically coupled to the non-piezoelectric material through an acoustical transmissive medium. Sponsorship: IIT Research Institute United States Patent Show less