Displacement control device and actuator
    91.
    发明授权
    Displacement control device and actuator 失效
    位移控制装置和执行器

    公开(公告)号:US06411011B1

    公开(公告)日:2002-06-25

    申请号:US09515678

    申请日:2000-02-29

    IPC分类号: H01L4109

    摘要: A displacement control device is provided, including a substrate, two diaphragms joined to at least side surfaces of a recess section made in the substrate, and a connecting plate sandwiched between the two diaphragms and joined to a bottom surface of the recess section. At least one end portion of each of the two diaphragms is joined to the connecting plate and an opposite end portion thereof is joined to the substrate. At least two independent piezoelectric/electrostrictive elements are located at both the diaphragms, and the connecting plate is driven to create a hysteresis displacement locus. The displacement control device is properly applicable to mechanism for adjusting the displacement, the position or the angle of various kinds of precision parts, such as an optical unit, a rotating motor, a linear conveying apparatus, and others.

    摘要翻译: 提供了一种位移控制装置,包括基板,连接到在基板中形成的凹部的至少侧面的两个隔膜和夹在两个隔膜之间并连接到凹部的底面的连接板。 两个隔膜中的每一个的至少一个端部连接到连接板,并且其相对端部连接到基板。 至少两个独立的压电/电致伸缩元件位于两个隔膜处,并且连接板被驱动以产生磁滞位移轨迹。 位移控制装置适用于调整光学单元,旋转马达,线性输送装置等各种精密部件的位移,位置或角度的机构。

    Piezoelectric/electrostrictive device and production method thereof
    92.
    发明授权
    Piezoelectric/electrostrictive device and production method thereof 失效
    压电/电致伸缩器件及其制造方法

    公开(公告)号:US06335586B1

    公开(公告)日:2002-01-01

    申请号:US09441914

    申请日:1999-11-17

    IPC分类号: H01L4108

    摘要: A piezoelectric/elecrostrictive device comprising a driving portion to be driven by a displacement of a piezoelectric/electrostrictive element, a movable portion to be operated based on a drive of the driving portion, and a fixing portion for holding the driving portion and the movable portion. The driving portion comprises a pair of thin plate portions facing each other, and a film-like piezoelectric/electrostrictive element including at least a pair of electrode films and a piezoelectric/electrostrictive film formed at least on the outer surface of at least one thin plate portion of the thin plate portions. The fixing portion is coupled with the movable portion via the driving portion, a hole is defined by an inner wall of the driving portion, an inner wall of the movable portion, and an inner wall of the fixing portion, and at least one side of a piezoelectric operating portion of said piezoelectric/electrostrictive element in a direction in which said thin plate portion connects with said fixing portion with the movable portion is structured to exist on the fixing portion or the movable portion. A ratio a/b of the thickness a of said hole and the width b of said thin plate portion is 0.5 to 20. Since the movable portion can be largely operated, the device can be used as a displacement element which is hardly affected by a harmful vibration in operation, and superior in mechanical strength, handling property, impact resistance, and humidity resistance, and a sensor element capable of detecting a vibration of the movable portion with fine precision.

    摘要翻译: 一种压电/电子装置,包括由压电/电致伸缩元件的位移驱动的驱动部分,基于驱动部分的驱动而被操作的可动部分,以及用于保持驱动部分和可动部分的固定部分 。 驱动部分包括彼此面对的一对薄板部分,以及至少包括一对电极膜和至少在至少一个薄板的外表面上形成的压电/电致伸缩薄膜的薄膜状压电/电致伸缩元件 薄板部分的一部分。 固定部分经由驱动部分与可动部分联接,孔由驱动部分的内壁,可动部分的内壁和固定部分的内壁限定,至少一侧 所述压电/电致伸缩元件的压电操作部分在所述薄板部分与所述固定部分与所述可移动部分连接的方向上构造成存在于所述固定部分或所述可动部分上。 所述孔的厚度a和所述薄板部的宽度b的比率a / b为0.5〜20。由于可动部能够大幅度地动作,因此能够将该装置用作几乎不受 操作中的有害振动,机械强度,操作性,耐冲击性和耐湿性优异的传感器元件,以及能够精确地检测可动部的振动的传感器元件。

    Piezoelectric/electrostrictive device
    93.
    发明授权
    Piezoelectric/electrostrictive device 失效
    压电/电致伸缩器件

    公开(公告)号:US06333681B1

    公开(公告)日:2001-12-25

    申请号:US09491171

    申请日:2000-01-25

    IPC分类号: H01L4108

    CPC分类号: H01L41/43 H01L41/0946

    摘要: A piezoelectric/electrostrictive device is disclosed comprising a driving portion to be driven by a displacement of a piezoelectric/electrostrictive element, a movable portion to be operated by a drive of the driving portion, a fixing portion for holding the driving portion and the movable portion, the movable portion being coupled with the fixing portion via the driving portion, and a hole formed by inner walls of the driving portion, an inner wall of the movable portion, and an inner wall of the fixing portion. The driving portion comprises a pair of mutually opposing thin plate portions, and a piezoelectric/electrostrictive element including a piezoelectric/electrostrictive operating portion comprising at least a pair or more of electrodes and a piezoelectric/electrostrictive layer formed on at least a part of the outer surface of at least one thin plate portion out of the thin plate portions, one end of the piezoelectric/electrostrictive operating portion in a direction in which the fixing portion is connected with the movable portion exists on the fixing portion or the movable portion, and the other end of the piezoelectric/electrostrictive operating portion is arranged on the thin plate portion, and at least a piezoelectric/electrostrictive layer of the piezoelectric/electrostrictive element exists extending over the movable portion and the fixing portion. The device of the present invention, having high rigidity in the width direction of the thin plate portions, namely in the Y-axis direction, enables rigid joining when functional parts such as sensors, magnetic heads, or the like are fixed to the present device, and further when the present device per se is fixed to another structure.

    摘要翻译: 公开了一种压电/电致伸缩器件,其包括驱动部分,该驱动部分由压电/电致伸缩元件的位移驱动,通过驱动部分的驱动而操作的可动部分,用于保持驱动部分和可动部分的固定部分 所述可移动部分经由所述驱动部分与所述固定部分联接,以及由所述驱动部分的内壁,所述可移动部分的内壁和所述固定部分的内壁形成的孔。 驱动部分包括一对相互相对的薄板部分,以及包括压电/电致伸缩操作部分的压电/电致伸缩元件,所述压电/电致伸缩操作部分包括至少一对或多个电极和形成在外部的至少一部分上的压电/电致伸缩层 至少一个薄板部分的表面在薄板部分之外,压电/电致伸缩操作部分的固定部分与可动部分连接的方向的一端存在于固定部分或可移动部分上,并且 压电/电致伸缩操作部分的另一端设置在薄板部分上,至少压电/电致伸缩元件的压电/电致伸缩层存在于可移动部分和固定部分上方延伸。 本发明的薄板部的宽度方向的刚性即Y轴方向的本发明的装置能够在诸如传感器,磁头等的功能部件固定在本装置上时进行刚性接合 并且当本装置本身固定到另一结构时。

    Piezoelectric/electrostrictive device and production method thereof
    94.
    发明授权
    Piezoelectric/electrostrictive device and production method thereof 失效
    压电/电致伸缩器件及其制造方法

    公开(公告)号:US06329740B1

    公开(公告)日:2001-12-11

    申请号:US09413127

    申请日:1999-10-06

    IPC分类号: H01L4108

    摘要: A piezoelectric/electrostrictive device includes: a driving portion which is driven by displacement of a piezo-electric/electrostrictive element, a movable portion which operates on the basis of a drive of the driving portion, and a fixed portion for supporting the above driving portion and movable portion. It has a driving portion including thin plates facing each other and a thin film piezoelectric/electrostrictive element formed on the surface of at least one of the thin plates, and the above fixed portion and the above movable portion are joined by the driving portion. In this piezoelectric/electrostrictive element, the movable portion can largely be displaced, and it is not easily affected by a harmful vibration in operation, and it is excellent in mechanical strength, handling efficiency, impact resistance, and moisture resistance.

    摘要翻译: 压电/电致伸缩器件包括:通过压电/电致伸缩元件的位移驱动的驱动部分,基于驱动部分的驱动而操作的可动部分和用于支撑上述驱动部分的固定部分 和可动部。 它具有包括彼此相对的薄板的驱动部分和形成在至少一个薄板的表面上的薄膜压电/电致伸缩元件,并且上述固定部分和上述可移动部分由驱动部分接合。 在这种压电/电致伸缩元件中,可移动部分可以大大移位,并且不容易受到操作中的有害振动的影响,并且机械强度,处理效率,耐冲击性和耐湿性都优异。

    Piezoelectric/electrostrictive film element
    95.
    发明授权
    Piezoelectric/electrostrictive film element 失效
    压电/电致伸缩膜元件

    公开(公告)号:US06217979B1

    公开(公告)日:2001-04-17

    申请号:US09085853

    申请日:1998-05-27

    IPC分类号: C04B3700

    摘要: A method of producing a piezoelectric/electrostrictive film element is disclosed. The film element includes a zirconia substrate having a window which is closed by a diaphragm portion, and a piezoelectric or electrostrictive unit formed on the substrate and including a piezoelectric or electrostrictive layer between upper and lower electrodes. The method comprises the steps of: (a) preparing the substrate which has been sintered and in which at least the diaphragm portion contains alumina in an amount of 1.1-5.0 parts by weight; (b) forming, by a film-forming process, the lower electrode on the diaphragm portion, and the piezoelectric/electrostrictive layer on the lower electrode by using a piezoelectric/electrostrictive material which contains magnesia or a component which gives magnesia, in an independent form or in a compound form; and (c) firing the piezoelectric/electrostrictive layer, so as to deposit particles consisting principally of a compound of alumina and magnesia at least on an interface between the diaphragm portion and the lower electrode, the interface being located right under the piezoelectric/electrostrictive layer.

    摘要翻译: 公开了制造压电/电致伸缩薄膜元件的方法。 薄膜元件包括具有由隔膜部分封闭的窗口的氧化锆基板,以及形成在基板上并且在上部和下部电极之间包括压电或电致伸缩层的压电或电致伸缩单元。 该方法包括以下步骤:(a)制备已经烧结的衬底,其中至少隔膜部分含有1.1-5.0重量份的氧化铝; (b)通过使用含有氧化镁或氧化镁的成分的压电/电致伸缩材料,通过成膜工艺在隔膜部分上形成下电极和下电极上的压电/电致伸缩层,在独立的 形式或复合形式; 和(c)对压电/电致伸缩层进行烧制,至少在隔膜部分和下电极之间的界面上沉积主要由氧化铝和氧化镁组成的颗粒,界面位于压电/电致伸缩层的正下方 。

    Method of producing a piezoelectric/electrostrictive film element
    96.
    发明授权
    Method of producing a piezoelectric/electrostrictive film element 失效
    压电/电致伸缩薄膜元件的制造方法

    公开(公告)号:US5853514A

    公开(公告)日:1998-12-29

    申请号:US716876

    申请日:1996-09-20

    摘要: A method of producing a piezoelectric/electrostrictive film element is disclosed. The film element includes a zirconia substrate having a window which is closed by a diaphragm portion, and a piezoelectric or electrostrictive unit formed on the substrate and including a piezoelectric or electrostrictive layer between upper and lower electrodes. The method comprises the steps of: (a) preparing the substrate which has been sintered and in which at least the diaphragm portion contains alumina in an amount of 1.1-5.0 parts by weight; (b) forming, by a film-forming process, the lower electrode on the diaphragm portion, and the piezoelectric/electrostrictive layer on the lower electrode by using a piezoelectric/electrostrictive material which contains magnesia or a component which gives magnesia, in an independent form or in a compound form; and (c) firing the piezoelectric/electrostrictive layer, so as to deposit particles consisting principally of a compound of alumina and magnesia at least on an interface between the diaphragm portion and the lower electrode, the interface being located right under the piezoelectric/electrostrictive layer.

    摘要翻译: 公开了制造压电/电致伸缩薄膜元件的方法。 薄膜元件包括具有由隔膜部分封闭的窗口的氧化锆基板,以及形成在基板上并且在上部和下部电极之间包括压电或电致伸缩层的压电或电致伸缩单元。 该方法包括以下步骤:(a)制备已经烧结的衬底,其中至少隔膜部分含有1.1-5.0重量份的氧化铝; (b)通过使用含有氧化镁或氧化镁的成分的压电/电致伸缩材料,通过成膜工艺在隔膜部分上形成下电极和下电极上的压电/电致伸缩层,在独立的 形式或复合形式; 和(c)对压电/电致伸缩层进行烧制,至少在隔膜部分和下电极之间的界面上沉积主要由氧化铝和氧化镁组成的颗粒,界面位于压电/电致伸缩层的正下方 。

    Piezoelectric device
    98.
    发明授权
    Piezoelectric device 失效
    压电元件

    公开(公告)号:US5376857A

    公开(公告)日:1994-12-27

    申请号:US206939

    申请日:1994-03-07

    摘要: A piezoelectric device (1) includes an at least locally thin-walled ceramic substrate (2) and at least one piezoelectric transducer (3) on the substrate (2). The piezoelectric transducer (3) includes a lower electrode layer (4), a piezoelectric layer (5) and an upper electrode layer (6) which are sequentially laminated with each other. The piezoelectric layer (5) has a dimension which is sufficient to cover substantially completely the lower electrode layer (4). The piezoelectric layer (5) has at least one edge (7) which protrudes beyond the lower electrode layer (4) and which is at least locally incompletely bonded to the ceramic substrate (2).

    摘要翻译: 压电器件(1)包括至少局部薄壁陶瓷衬底(2)和在衬底(2)上的至少一个压电换能器(3)。 压电换能器(3)包括相互层叠的下电极层(4),压电层(5)和上电极层(6)。 压电层(5)的尺寸足以完全覆盖下电极层(4)。 压电层(5)具有至少一个突出超过下电极层(4)的边缘(7),并且至少局部地不完全地结合到陶瓷衬底(2)上。

    Piezoelectric/electrostrictive actuator having at least one
piezoelectric/electrostrictive film
    99.
    发明授权
    Piezoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive film 失效
    具有至少一个压电/电绝缘膜的压电/电致动器

    公开(公告)号:US5126615A

    公开(公告)日:1992-06-30

    申请号:US672330

    申请日:1991-03-20

    摘要: A piezoelectric/electrostrictive actuator having at least one piezoelectric/electrostrictive unit each including a first electrode film, a piezoelectric/electrostrictive film and a second electrode film which are superposed on each other on a ceramic substrate, or at least one piezoelectric/electrostrictive unit each including a plurality of patterned spaced-apart electrode film strips formed on a ceramic substrate, and a plurality of patterned spaced-apart piezoelectric/electrostrictive film strips each formed on the ceramic substrate and disposed between and in contact with adjacent ones of the electrode film strips. The ceramic substrate includes ceramic particles and grain boundaries defined by the ceramic particles. Lead is included in the grain boundaries which exist in at least a selected portion of the ceramic substrate on which the unit or units is/are disposed.