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    • 4. 发明申请
    • Packaged strain actuator
    • 包装应变致动器
    • US20020047499A1
    • 2002-04-25
    • US09837773
    • 2001-04-18
    • Kenneth B. LazarusMark E. LundstromJeffrey W. MooreEdward Crawley
    • H05K003/20H02N002/00
    • H01L41/23G03F7/70725G03F7/70758G03F7/709H01L41/047H01L41/053H01L41/0926H01L41/0933H01L41/094H01L41/0953H01L41/0993H04R17/08Y10T29/42Y10T29/49126Y10T29/49128Y10T29/49146
    • A modular actuator assembly includes one or more plates or elements of electro-active material bonded to an electroded sheet, preferably by a structural polymer to form a card. The card is sealed, and may itself constitute a practical device, such as a vane, shaker, stirrer, lever, pusher or sonicator for direct contact with a solid or immersion in a fluid, or may be bonded by a stiff adhesive to make a surface-to-surface mechanical coupling with a solid workpiece, device, substrate, machine or sample. The structural polymer provides a bending stiffness such that the thin plate does not deform to its breaking point, and a mechanical stiffness such that shear forces are efficiently coupled from the plate to the workpiece. In further embodiments, the card may include active circuit elements for switching, powering or processing signals, and/or passive circuit elements for filtering, matching or damping signals, so that few or no connections to outside circuitry are required. The actuator assembly can be manufactured in quantity, to provide a versatile actuator with uniform mechanical and actuation characteristics, that introduces negligible mass loading to the workpiece. The cards themselves may be arranged as independent mechanical actuators, rather than strain-transfer actuators, in which the induced strain changes the position of the card. Various arrangements of pinned or cantilevered cards may act as a pusher, bender or other motive actuator, and structures such as powered bellows may be formed directly by folding one or more suitably patterned cards.
    • 模块化致动器组件包括一个或多个电活性材料的板或元件,其结合到电镀片材上,优选地通过结构聚合物形成卡片。 该卡被密封,并且本身可以构成用于与固体直接接触或浸入流体中的实际装置,例如叶片,摇动器,搅拌器,杠杆,推动器或超声波器,或者可以通过刚性粘合剂粘合以形成 与实体工件,器件,基板,机器或样品的表面到表面的机械耦合。 结构聚合物提供弯曲刚度,使得薄板不会变形到其断裂点,并且具有机械刚度,使得剪切力从板有效地耦合到工件。 在另外的实施例中,卡可以包括用于切换,供电或处理信号的有源电路元件,和/或用于滤波,匹配或阻尼信号的无源电路元件,使得很少或者不需要与外部电路的连接。 致动器组件可以大量制造,以提供具有均匀机械和致动特性的通用致动器,其将可忽略的质量负载引入到工件中。 卡本身可以被布置为独立的机械致动器,而不是应变传递致动器,其中感应应变改变卡的位置。 钉扎或悬臂卡的各种布置可以用作推动器,弯曲机或其它动作致动器,并且诸如动力波纹管的结构可以通过折叠一个或多个适当图案化的卡直接形成。
    • 5. 发明授权
    • Piezoelectric/electrostrictive film element
    • 压电/电致伸缩膜元件
    • US06217979B1
    • 2001-04-17
    • US09085853
    • 1998-05-27
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • C04B3700
    • C04B35/486C04B35/4885C04B35/6264C04B2235/3225C04B2235/6025H01L41/0973H01L41/314H04R17/08Y10T428/24273Y10T428/24322Y10T428/24331
    • 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.
    • 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 。
    • 6. 发明授权
    • Multi-segmented high deformation piezoelectric array
    • 多段高变形压电阵列
    • US6111967A
    • 2000-08-29
    • US963415
    • 1997-11-03
    • Samuel A Face, Jr.Norvell S. Rose, Jr.
    • Samuel A Face, Jr.Norvell S. Rose, Jr.
    • G10K9/12H01L41/09H04R17/00H04R17/08H04R25/00
    • G10K9/121H01L41/0933H04R17/00H04R17/08
    • A multi-segmented flextensional transducer includes a plurality of electroplated electroactive members which deform in concert when energized by an electrical field. Each electroactive member has a convex surface at both ends. A connection member with opposing concave surfaces is disposed between adjacent electroactive members. The electroactive members are arranged such that the convex faces of each intermediate electroactive member engage a concave face of an adjacent connection member, thus forming a cooperative array or "train" of electroactive members and connection members. The opposite ends of the train of electroactive members and connection members is received by a frame which holds the end electroactive members in fixed relative position. The electroactive members are high deformation flextensional piezoelectric elements. When energized, each electroactive member individually deforms, and the entire array deforms in concert an amount significantly exceeding that of the individual electroactive members.
    • 多分段屈曲变换器包括多个电镀电活性部件,当通过电场激励时,它们一起变形。 每个电活性构件在两端具有凸面。 具有相对的凹面的连接构件设置在相邻的电活性构件之间。 电活性构件被布置成使得每个中间电活性构件的凸面接合相邻连接构件的凹面,从而形成电活性构件和连接构件的协作阵列或“列车”。 电活性构件和连接构件的列的相对端由保持端电动构件固定在相对位置的框架接收。 电活性物质是高变形力的压电元件。 当通电时,每个电活性元件单独变形,并且整个阵列一致地显着超过单个电活性元件的量的变化。
    • 10. 发明授权
    • Process for producing a vibration angular-velocity sensor
    • 振动角速度传感器的制造方法
    • US5802684A
    • 1998-09-08
    • US504725
    • 1995-07-20
    • Takamitsu FujiuShunji Watanabe
    • Takamitsu FujiuShunji Watanabe
    • G01C19/56G01P9/04G01P15/08H04R17/08H04R17/00
    • G01P15/0802G01C19/5642G01C19/5656H04R17/08Y10T29/42
    • A vibrator is formed on a silicon substrate to become a base by the silicon-processing procedure and a thin film of a piezoelectric material is formed on the substrate by a method matching with the silicon-processing procedure. When an ac field of a frequency near the resonance frequency of the transverse vibration of the vibrator is applied to the thin film of the piezoelectric material, the piezoelectric reverse effect excites characteristic vibration in the vibrator. If a rotational motion is generated along the axis of the beam in that state, the Coriolis' force is generated in a direction perpendicular to both the axial direction and the vibration direction of the beam. This force deforms the beam in that direction. Detecting inductive charges produced in another piezoelectric thin film fixed on the vibrator because of the piezoelectric normal effect due to the deformation, the rotational, angular velocity can be obtained.
    • 通过硅处理工序在硅衬底上形成振动器以成为基底,并通过与硅加工步骤匹配的方法在衬底上形成压电材料薄膜。 当振动器的横向振动的共振频率附近的交流场被施加到压电材料的薄膜时,压电反向效应激发振动器中的特征振动。 如果在该状态下沿着轴的轴线产生旋转运动,则在与梁的轴向和振动方向垂直的方向上产生科里奥利力。 该力使梁在该方向变形。 检测由于变形引起的压电正常效应,旋转角速度可以获得固定在振动器上的另一个压电薄膜产生的感应电荷。