- 专利标题: Highly Sensitive Acoustic Fabric Including An Acoustic Fiber Transducer
-
申请号: US18021619申请日: 2021-07-09
-
公开(公告)号: US20230304197A1公开(公告)日: 2023-09-28
- 发明人: YOEL FINK , WEI YAN
- 申请人: Massachusetts Institute of Technology
- 申请人地址: US MA Cambridge
- 专利权人: Massachusetts Institute of Technology
- 当前专利权人: Massachusetts Institute of Technology
- 当前专利权人地址: US MA Cambridge
- 国际申请: PCT/US2021/041080 2021.07.09
- 进入国家日期: 2023-02-16
- 主分类号: D03D1/00
- IPC分类号: D03D1/00 ; H04R17/00 ; H10N30/00 ; H10N30/857
摘要:
The acoustic fiber transducer has a piezoelectric domain with Young's modulus, Epiezo, and including a non-centrosymmetric crystalline-phase piezoelectric material and inorganic piezoelectric particles. At least one charge collector domain is in electrical connection with the piezoelectric domain and includes an electrically conductive material operative to collect electrical charge generated in the piezoelectric domain. At least one electrical conductor is in electrical contact with the at least one charge collector domain and includes an electrically conductive material operative to transport electrical charge from a charge collector domain to an end of the acoustic fiber transducer as an electrical signal indicative of input acoustic sound pressure on a matrix of textile fibers that includes the acoustic fiber transducer. Outer acoustic energy transmission material has a Young's modulus Etrans, of 0.3 Pa-500 MPa, for matching vibrational modes of the textile fiber matrix. A ratio of Epiezo/Etrans is between about 5 and about 70,000.
信息查询