公开(公告)号：US07781940B1

公开(公告)日：2010-08-24

申请号：US12379127

申请日：2009-02-13

Applicant: Cheng Hsin Chuang

Inventor： Cheng Hsin Chuang

IPC: H01L41/113 ,  H01L41/18 ,  G01L1/00

CPC classification number: H01L41/1132 ,  H01L41/45 ,  Y10S310/80 ,  Y10T29/42

Abstract: A novel flexible tactile sensor for sensing the force direction was designed by introducing the concept of structural electrodes on a piezoelectric film. The structural electrodes comprised an elastomeric column and distributed microelectrodes between the column and piezoelectric film. As a periodic small force acts at the elastomeric column, the force is transferred to the piezoelectric film based on the column bending behavior therefore the scale of force can be detected by the output voltages from the distributed electrodes due to the corresponding force state under the column. In addition, two opposite output signals from different sides of the column can differentiate the force direction as the column is bent by external force. The resulting signal for sensing force and its direction depends on the size of column.

Abstract translation: 通过在压电膜上引入结构电极的概念，设计了一种用于感测力方向的新型柔性触觉传感器。 结构电极在柱和压电膜之间包括弹性体柱和分布的微电极。 由于周期性的小力作用在弹性体柱上，所以根据柱的弯曲行为将力转移到压电膜，因此由于柱下相应的力状态可以通过来自分布电极的输出电压来检测力的比例 。 另外，柱的不同侧的两个相反的输出信号可以通过外力使柱被弯曲而区分力方向。 所得到的感应力信号及其方向取决于色谱柱的大小。

公开(公告)号：US08158533B2

公开(公告)日：2012-04-17

申请号：US12828802

申请日：2010-07-01

Applicant: Cheng Hsin Chuang

Inventor： Cheng Hsin Chuang

IPC: H01L21/302 ,  H01L21/461

CPC classification number: H01L41/1132 ,  H01L41/45 ,  Y10S310/80 ,  Y10T29/42

Abstract: A piezoelectric tactile sensor comprises a piezoelectric membrane with a top surface, a transducer of elastic column with a bottom end surface to overlay over the top surface of the piezoelectric membrane and plural microelectrodes being sandwiched between the top surface of the piezoelectric membrane and the bottom end surface of the transducer in spread manner. When the transducer is subjected to an external stress, the piezoelectric membrane will generate uneven stress distribution to initiate dispersed microelectrodes output a corresponding induced voltage signal for being analyzed to figure out the direction and magnitude of the external stress.

Abstract translation: 一种压电触觉传感器包括具有顶表面的压电膜，具有底端表面的弹性柱的换能器覆盖在压电膜的顶表面上，并且多个微电极夹在压电膜的顶表面和底端之间 传感器的表面以传播方式。 当传感器受到外部应力时，压电膜将产生不均匀的应力分布，以引发分散的微电极输出相应的感应电压信号进行分析，以计算出外部应力的方向和幅度。