Title:
【発明の名称】金属―電気活性セラミック複合変換器
Document Type and Number:
Japanese Patent JP2000502210
Kind Code:
A
Abstract:
A metal-ceramic device includes an electroactive ceramic substrate having a pair of opposed planar surfaces and a thickness aspect. Conductive electrodes sandwich the ceramic substrate and a first sheet metal cap having a concave shape, a substantially unchanging thickness and a rim is joined to a first planar surface of the ceramic substrate. A second sheet metal cap having a concave shape, a substantially unchanging thickness and a rim is bonded to a second planar surface of the ceramic substrate, the second planar surface opposed to the first planar surface. In an actuator embodiment, a potential is applied across the conductive electrodes to cause an expansion of the ceramic substrate in the thickness dimension and a concomitant contraction in its planar dimensions. The contraction causes a flexure of the sheet metal caps, which flexures are used for actuation purposes. In a sensor embodiment, the sheet metal caps are subjected to a displacement by an instrumentality, and a resulting change in voltage across the ceramic substrate is sensed.
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Inventors:
Robert E. Newnam
Dogan, Aydin
Dogan, Aydin
Application Number:
JP52229697A
Publication Date:
February 22, 2000
Filing Date:
December 12, 1996
Export Citation:
Assignee:
The Penn State Research Foundation
International Classes:
H01L41/083; H01L41/09; H01H57/00; (IPC1-7): H01L41/083
Domestic Patent References:
| JPH07302937A | 1995-11-14 | |||
| JPH06338640A | 1994-12-06 | |||
| JPH0786650A | 1995-03-31 | |||
| JPH07162051A | 1995-06-23 | |||
| JPH07162050A | 1995-06-23 | |||
| JPH04337681A | 1992-11-25 | |||
| JPH03174784A | 1991-07-29 |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)