Abstract:
본 발명은 다축 촉각 센서에 관한 것이며, 본 발명의 다축 촉각 센서는 유전율을 가지는 유전탄성체; 사각형 단면을 가지며, 상기 유전탄성체의 양면에 상호 대향되게 배치되며 가해지는 외력에 의하여 이격거리가 변화하는 한 쌍의 수직력 센싱 전극을 구비하는 수직력 센싱유닛; 스트라이프 형상으로 마련되고 상기 수직력 센싱 전극의 테두리와 평행하며 상호 이격되게 배치되는 복수 개의 제1전극부재를 포함하고, 상기 유전탄성체의 양면에 상호 대향되게 배치되며 가해지는 외력에 의하여 대향면적이 변화하는 한 쌍의 전단력 센싱 전극을 구비하는 전단력 센싱유닛; 가해지는 외력에 의하여 상기 수직력 센싱유닛과 상기 전단력 센싱유닛으로부터 측정되는 캐패시턴스 값의 변화를 이용하여 상기 외력을 산출하는 외력 산출부;를 포함하며, 상기 수직력 센싱 유닛과 상기 전단력 센싱 유닛은 종방향 및 횡방향을 따라서 서로 교대로 배치되는 것을 특징으로 한다. 따라서, 본 발명에 의하면, 서로 다른 형상의 전극을 이용하여 수직력 및 전단력을 동시에 정밀하게 측정할 수 있는 다축 촉각 센서가 제공된다.
Abstract:
PURPOSE: A multi-axis tactile sensor is provided to separately include a sensing unit capable of sensing a normal force and a shear force, thereby improving the accuracy of measuring the direction and the intensity. CONSTITUTION: A multi-axis tactile sensor includes a dielectric-elastic body (110), normal force sensing units (120), shear force sensing units (130), and an external force measuring unit (140). The normal force sensing units are arranged on both sides of the dielectric-elastic body and include a pair of vertical force sensing electrodes in which an interval is changed by an external force. The shear force sensing units are arranged on both sides of the dielectric-elastic body to be adjacent to a first electrode unit. The shear force sensing units include a pair of shear force sensing electrode in which a facing area is changed by an external force. The external force measuring unit measures the external force by using a change in a capacitance value of the vertical force sensing unit and the shear force sensing unit caused by the applied external force. [Reference numerals] (140) External force measuring unit
Abstract:
PURPOSE: A method of making a carbon electrode structure be rigid and a rigid carbon electrode structure are provided to use an imprint, thereby easily measuring the change of resistance. CONSTITUTION: An elastomer substrate is prepared (S10). Carbon powder is coated on the elastomer substrate (S20). The carbon powder is hardened (S30). A metal plate is adhered to the carbon powder (S40). An imprint is performed on the elastomer substrate (S50). [Reference numerals] (S10) Step of preparing an elastomer substrate; (S20) Step of coating the elastomer substrate with carbon powder; (S30) Step of hardening the carbon powder; (S40) Step of attaching a metal plate to the carbon powder to cover both ends of the carbon powder; (S50) Step of imprinting the elastomer substrate
Abstract:
PURPOSE: A haptic display device, a module thereof, and a method thereof are provided to simplify a manufacturing process through a solid couple ring and to miniaturize the size of an integrated module. CONSTITUTION: An actuator(10) includes an electrode unit(12) expanded and contracted by receiving an external voltage. A frame unit(14) includes openings having different sizes, is connected to the actuator, and includes the electrode unit in the end of the openings. A deforming unit(18) is coupled with the frame unit through the openings, contacted to a side of the electrode unit, and is deformed by expanding and contracting power of the electrode unit. A touch spot(20) is formed on a surface of the deforming unit in the openings to move up and down by the deformation of the deforming unit with the expanding and contracting power.
Abstract:
본 발명은 지능형 최소 침습 수술 도구에 관한 것으로서, 본 발명에 따른 지능형 최소 침습 수술도구는 인체내의 영역을 치료하기 위하여 시술자가 사용하는 지능형 최소 침습 수술 도구에 있어서, 일단부에 접촉력이 전달되는 프로브; 상기 프로브의 타단부와 연결되며 치료시에 상기 프로브의 일단부에 전달되는 접촉력을 감지하되, 제1센서전극, 상기 제1센서전극의 상측에 구비되는 센서유전체, 상기 센서유전체의 상측에 마련되는 제2센서전극을 구비하는 센서부; 상기 감지된 접촉력에 대응되는 자극을 상기 시술자에게 제공하는 촉각부; 상기 센서부와 연결되어 상기 프로브에 가해지는 접촉력에 의하여 발생되는 상기 센서부의 캐패시턴스 변화를 감지하고, 이에 대응되는 전기신호를 상기 촉각부에 전달함으로써 상기 촉각부를 제어하는 제어부;를 포함하는 것을 특징으로 한다. 이에 의하여, 시술자가 촉감을 느끼며 인체를 절개하여 상처부위를 모두 개방한 것과 같이 정교한 시술을 진행할 수 있는 지능형 최소 침습 수술 도구가 제공된다.
Abstract:
PURPOSE: A capacitor sensor capable of sensitivity control is provided to simplify the structure by reducing the number of cells and to control the sensitivity of the sensor. CONSTITUTION: A capacitor sensor comprises a capacitor(100), electrodes(110,120), and a capacitance measurement unit. The capacitor is constituted with a dielectric material having a unique dielectric constant and has two faces facing to each other. The electrodes are respectively arranged in the two faces of the capacitor. The shape of the electrodes is a 2D shape having portions becoming narrow to one side. The electrodes are symmetrically arranged in order to make the portions becoming narrow face each other. The narrowing degree of the portions is varied. The capacitance measurement unit is connected to each of the two electrodes.
Abstract:
PURPOSE: A global position estimation and correction method for a mobile robot using a magnetic landmark is provided to easily estimate and correct a position error of a mobile robot which is out of sync with an estimated coordinate of the absolute position of the landmark. CONSTITUTION: A global position estimation and correction method for a mobile robot(10) using a magnetic landmark(21) comprises the following steps. A landmark pattern adjacent to a pattern of a specific landmark where the mobile robot is positioned is recognized. The coordinate of the absolute position of the landmark is estimated. A position error of the mobile robot, which is out of sync with the estimated absolute position coordinate, is estimated. The position error is corrected according to the estimated position error in order to move the mobile robot to the absolute position coordinate.
Abstract:
PURPOSE: A humanoid robot hand is provided to vary the motion range of the robot hand because a link unit is composed of three separated joint units. CONSTITUTION: A humanoid robot hand(100) comprises a thumb unit(130), a forefinger unit(121), and a link unit(150). The link unit connects the thumb unit and the forefinger unit. The link unit supports an object grasped by the thumb unit and the forefinger unit. The link unit comprises multiple link joints and multiple rods. The rods are rotatably connected to the link joint units.
Abstract:
PURPOSE: A solid electrolyte polymer and a polymer actuator are provided to enable low voltage operation and to obtain superior thermal stability and chemical resistance using a cross-linked PVDF-based polymer as the polymer for the actuator. CONSTITUTION: A method for manufacturing a polymer actuator comprises the following steps: putting a cross-linking agent into PVDF-based solution after forming the PVDF-based saluting using a PVDF-based polymer powder; forming a cross-linked PVDF polymer membrane through thermal treatment after forming the PVDF-based solution into a membrane shape; coating the cross-linked PVDF-based polymer membrane with a conductive polymer solution(34); and injecting an electrolyte into the PVDF polymer membrane.