| 发明名称 | Acoustic sensor and acoustic sensor system | ||
| 摘要 | According to one embodiment, an acoustic sensor includes a base and a first strain sensing element. The base includes a support and a first film unit supported by the support. The first film unit is flexible. The first strain sensing element is provided on a first surface of the first film unit. The first strain sensing element includes a first magnetic layer, a second magnetic layer, and a first intermediate layer provided between the first magnetic layer and the second magnetic layer. An angle between a magnetization of the first magnetic layer and a magnetization of the second magnetic layer is variable by an acoustic wave. The acoustic wave is transmitted to a first film unit by a first transmitting material in contact with the first film unit. | ||
| 申请公布号 | US9581571(B2) | 申请公布日期 | 2017.02.28 |
| 申请号 | US201414465300 | 申请日期 | 2014.08.21 |
| 申请人 | Kabushiki Kaisha Toshiba | 发明人 | Otsu Kenji;Fukuzawa Hideaki;Hara Michiko;Ono Tomio |
| 分类号 | G01N29/14;G01N29/28;G01N29/12;G01N29/24 | 主分类号 | G01N29/14 |
| 代理机构 | Finnegan, Henderson, Farabrow, Garrett & Dunner LLP | 代理人 | Finnegan, Henderson, Farabrow, Garrett & Dunner LLP |
| 主权项 | 1. An acoustic sensor comprising: a base including a support and a first film unit supported by the support, the first film unit being flexible; and a first strain sensing element provided on a first surface of the first film unit, the first strain sensing element including a first magnetic layer, a second magnetic layer, and a first intermediate layer provided between the first magnetic layer and the second magnetic layer, an acoustic wave being transmitted to the first film unit via a first transmitting material, the first transmitting material being in contact with the first film unit, an electric resistance between the first magnetic layer and the second magnetic layer being variable in accordance with the acoustic wave. | ||
| 地址 | Tokyo JP | ||