公开(公告)号：WO2023022801A1

公开(公告)日：2023-02-23

申请号：PCT/US2022/035909

申请日：2022-07-01

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： HAN, Jinchi ,  LANG, Jeffrey, H. ,  BULOVIC, Vladimir

IPC: B06B1/06 ,  H01L41/04 ,  H01L41/107 ,  H01L41/31

Abstract: An active acoustic system includes a thin-film sheet having an array of piezoelectric microstructures embossed in the film. Each piezoelectric microstructure may act as a speaker and/or a microphone. A control circuit is configured to individually address the piezoelectric microstructures to provide a separate voltage signal to, or receive a separate voltage signal from, each piezoelectric microstructure.

公开(公告)号：WO2020190732A1

公开(公告)日：2020-09-24

申请号：PCT/US2020/022661

申请日：2020-03-13

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： BULOVIC, Vladimir ,  MURARKA, Apoorva ,  REARDON, Damien ,  LANG, Jeffrey, H. ,  HAN, Jinchi

IPC: G01L1/14 ,  G01L9/12

Abstract: Described embodiments provide an electromechanical transducer including a mechanically compliant, elastically deformable array of dielectric shells. A first electrically conductive electrode is disposed on a first surface of the array. A second electrically conductive electrode is disposed on a second surface of the array, where the second surface opposes the first surface. The array is configured to be mechanically compliant and elastically deformable in response to one or more incident forces applied to the electromechanical transducer.