CAPACITIVE TRANSDUCER, CAPACITIVE TRANSDUCER MANUFACTURING METHOD, AND OBJECT INFORMATION ACQUISITION APPARATUS

摘要

Provided is a capacitive transducer having broadband frequency characteristics. The capacitive transducer includes an element which has multiple kinds of cells. Each cell includes: a first electrode; a vibrating film including a second electrode facing the first electrode by having a gap therebetween; and a support portion for supporting the vibrating film to form the gap.