| 专利名称： | Piezoelectric device |
| 公开（告）号： | |
| 公开（公告）日： | 2006-07-26 00:00:00 |
| 申请（专利）号： | EP20060250281,EP1684364 |
| 申请日： | |
| 发明（设计）人： | NGK INSULATORS LTD (JP) |
| (申请)专利权（人）： | SHIMIZU HIDEKI (JP);EBIGASE TAKASHI (JP); |
| 内容： | There is disclosed a piezoelectric device which has a remarkably high piezoelectric characteristic and which is superior in a vibration transmitting property between a substrate and a piezoelectric portion and in which linearity of a flexural displacement with respect to a voltage is high up to a high voltage region and which exhibits a high durability even in a case where the device is used with a large flexural displacement for a long period. The piezoelectric device is provided with: a substrate 2 made of a ceramic; a piezoelectric portion 1 constituted of a piezoelectric porcelain composition containing as a major component a Pb(Mg, Ni) 1/3 Nb 2/3 O 3 -PbZrO 3- PbTiO 3 ternary solid solution system composition represented by a predetermined formula; and an electrode 3 electrically connected to the piezoelectric portion 1, and the piezoelectric portion 1 is solidly attached onto the substrate 2 directly or via the electrode 3. |
发布日期：2006-11-26 20:29:00