公开(公告)号：US08242791B2

公开(公告)日：2012-08-14

申请号：US12453710

申请日：2009-05-20

Applicant: Daesil Kang ,  Wonkyu Moon

Inventor： Daesil Kang ,  Wonkyu Moon

IPC: G01R27/26

CPC classification number: G01B7/003 ,  G01D18/00

Abstract: An area-variable type capacitive displacement sensor includes: a stationary element; a movable element; an elastic member for providing a force biasing one of the stationary element and the movable member towards a remaining one thereof in a direction perpendicular to a driving direction so that the stationary element and the movable member are maintained in close contact with each other; a power supply; and a signal detecting circuit. The sensor further includes a guide means for correcting an initial alignment error and reducing an operation alignment error between the stationary element and the movable element.

Abstract translation: 面积可变型电容式位移传感器包括：静止元件; 可移动元件; 弹性构件，用于在与驱动方向垂直的方向上提供将固定元件和可动构件中的一个朝向其余的元件施加的力，使得静止元件和可动构件保持彼此紧密接触; 电源; 和信号检测电路。 传感器还包括用于校正初始对准误差并降低固定元件和可移动元件之间的操作对准误差的引导装置。

公开(公告)号：US20090289641A1

公开(公告)日：2009-11-26

申请号：US12453710

申请日：2009-05-20

Applicant: Daesil Kang ,  Wonkyu Moon

Inventor： Daesil Kang ,  Wonkyu Moon

IPC: G01R27/26

CPC classification number: G01B7/003 ,  G01D18/00

Abstract: An area-variable type capacitive displacement sensor includes: a stationary element; a movable element; an elastic member for providing a force biasing one of the stationary element and the movable member towards a remaining one thereof in a direction perpendicular to a driving direction so that the stationary element and the movable member are maintained in close contact with each other; a power supply; and a signal detecting circuit. The sensor further includes a guide means for correcting an initial alignment error and reducing an operation alignment error between the stationary element and the movable element.

Abstract translation: 面积可变型电容式位移传感器包括：静止元件; 可移动元件; 弹性构件，用于在与驱动方向垂直的方向上提供将固定元件和可动构件中的一个朝向其余的元件施加的力，使得静止元件和可动构件保持彼此紧密接触; 电源; 和信号检测电路。 传感器还包括用于校正初始对准误差并降低固定元件和可移动元件之间的操作对准误差的引导装置。

公开(公告)号：US09797750B2

公开(公告)日：2017-10-24

申请号：US13218604

申请日：2011-08-26

Applicant: Won Kyu Moon ,  Daesil Kang

Inventor： Won Kyu Moon ,  Daesil Kang

IPC: G01R27/26 ,  G01D5/24

CPC classification number: G01D5/24

Abstract: An area varying capacitive sensor for substantially reducing a drift and an offset without performing a complicated process by linearizing a signal while automatically compensating the offset and the drift by additionally disposing an electrode and performing a simple signal process without applying complicated signal processing to an area varying capacitive sensor having a periodic electrode, a self compensation and signal linearization method of the area varying capacitive sensor are provided. A self compensation and signal linearization method of the sensor having four electrode sets that are disposed to generate a phase difference signal of 90 degrees comprises: controlling the four electrode sets to respectively output a signal with a phase difference of 90 degrees; acquiring two signals from which common signal components including a drift and an offset are eliminated by subtracting the signals that have opposite phases from among the signals that are output by the four electrode sets; controlling peak values of the two signals from which the common signal components are eliminated to have the same size, and acquiring two signals from which absolute values are taken; and comparing sizes of the two signals from which the absolute values are taken, taking a lesser value, and acquiring a linearized triangular wave.

公开(公告)号：US20120074965A1

公开(公告)日：2012-03-29

申请号：US13218604

申请日：2011-08-26

Applicant: WON KYU MOON ,  Daesil Kang

Inventor： WON KYU MOON ,  Daesil Kang

IPC: G01R27/26

CPC classification number: G01D5/24

Abstract: An area varying capacitive sensor for substantially reducing a drift and an offset without performing a complicated process by linearizing a signal while automatically compensating the offset and the drift by additionally disposing an electrode and performing a simple signal process without applying complicated signal processing to an area varying capacitive sensor having a periodic electrode, a self compensation and signal linearization method of the area varying capacitive sensor are provided. A self compensation and signal linearization method of the sensor having four electrode sets that are disposed to generate a phase difference signal of 90 degrees comprises: controlling the four electrode sets to respectively output a signal with a phase difference of 90 degrees; acquiring two signals from which common signal components including a drift and an offset are eliminated by subtracting the signals that have opposite phases from among the signals that are output by the four electrode sets; controlling peak values of the two signals from which the common signal components are eliminated to have the same size, and acquiring two signals from which absolute values are taken; and comparing sizes of the two signals from which the absolute values are taken, taking a lesser value, and acquiring a linearized triangular wave.

Abstract translation: 一种区域变化的电容式传感器，用于通过线性化信号来实质地减少漂移和偏移而不进行复杂的处理，同时通过附加地设置电极并执行简单的信号处理而不对不同的区域进行复杂的信号处理来补偿偏移和漂移 提供具有周期性电极的电容式传感器，区域改变电容式传感器的自补偿和信号线性化方法。 具有设置成产生90度的相位差信号的四个电极组的传感器的自补偿和信号线性化方法包括：控制四个电极组以分别输出90度的相位差的信号; 通过从由四个电极组输出的信号中减去具有相反相位的信号来消除包括漂移和偏移的公共信号分量的两个信号; 将公共信号分量从其消除的两个信号的峰值控制为具有相同的大小，并且获取从其获取绝对值的两个信号; 并且比较绝对值的两个信号的大小，取较小的值，并获取线性化的三角波。