Title:
【発明の名称】圧電素子及びその製造方法
Document Type and Number:
Japanese Patent JP2567753
Kind Code:
B2
Abstract:
PURPOSE:To enable a stable detection signal with a high sensitivity and a low temperature dependency to be output. CONSTITUTION:A piezoelectric element 21 is constituted by an element main body 22 with a crystal orientation which is inclined by a specified angle alphato an axis line O2-O2, a polarization axis P2 which is placed in a direction of crystal orientation of the element body 22 and is provided in a direction crossing the axis line O2-O2, an upper-side electrode 23 and a lower-side electrode 24 which are provided on upper and lower surfaces of the element main body 22. When a stress F is applied to the element main body 22 in a direction which is in parallel with the axis line O2-O2, a slippage occurs on a crystalline interface of each crystal 22A, thus enabling one portion of the stress F to be transmitted in a direction of the polarization axis P2. Therefore, an electric charge corresponding to the stress F is generated in a direction of the polarization axis P2 within the element main body 22 and this electric charge is led in a direction of a signal axis V2 from the electrodes 23 and 24.
Inventors:
OOKUMA SHIGEO
Application Number:
JP14102991A
Publication Date:
December 25, 1996
Filing Date:
May 16, 1991
Export Citation:
Assignee:
YUNISHIA JETSUKUSU KK
International Classes:
G01L1/16; G01L23/10; H01L29/84; H01L41/113; (IPC1-7): G01L1/16; G01L23/10; H01L29/84; H01L41/113
Domestic Patent References:
| JP1160069A | ||||
| JP1114086A | ||||
| JP5432520B2 |
Attorney, Agent or Firm:
Kazuhiko Hirose