公开(公告)号：US3676721A

公开(公告)日：1972-07-11

申请号：US3676721D

申请日：1970-08-28

Applicant: IIT RES INST

Inventor： HEUVEL ANTHONY P VAN DEN ,  RICHTER RONALD W ,  JOSHI SHRINIVAS G

IPC: H03H9/145 ,  H01V7/00

CPC classification number: H03H9/14502

Abstract: A transducer for generating and detecting surface elastic waves in a piezoelectric material may include a metalic grating on the material forming one electrode of the transducer and a counterelectrode separated from the grating by a dielectric layer.

公开(公告)号：US3665225A

公开(公告)日：1972-05-23

申请号：US3665225D

申请日：1970-08-28

Applicant: IIT RES INST

Inventor： HEUVEL ANTHONY P VAN DEN ,  OWEN RONALD B ,  JOSHI SHRINIVAS G

IPC: H03H9/02 ,  H03H9/145 ,  H01V7/00

CPC classification number: H03H9/14502 ,  H03H9/02574

Abstract: A 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.