公开(公告)号：US11486777B2

公开(公告)日：2022-11-01

申请号：US17259636

申请日：2019-07-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jinseok Kim ,  Sungwook Yang ,  Min Su Jang ,  Jun Sik Kim ,  Kyumin Kang ,  Bum-Jae You

IPC: G01L1/24 ,  G01L3/12

Abstract: Embodiments relate to a torsion sensor device which measures a degree of torsion of a measurement object by using a fiber Bragg gratings (FBG) sensor, the sensor device comprising: an FBG sensor including a sensing unit formed in one section of an elongated optical fiber; and a fixing device for fixing and supporting the FBG sensor to cause displacement of the FBG sensor according to motion of the measurement object, wherein the fixing device includes a bending prevention member to enable the sensing unit to have torsion displacement without bending displacement, according to the motion of the measurement object.

公开(公告)号：US11129553B2

公开(公告)日：2021-09-28

申请号：US16698590

申请日：2019-11-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CENTER OF HUMAN-CENTERED INTERACTION FOR COEXISTENCE

Inventor： Jinseok Kim ,  Hyun Joon Shin ,  Bum-Jae You ,  Sungwook Yang ,  Minsu Jang ,  Jun Sik Kim

IPC: A61B5/11 ,  A61B5/00 ,  G01B11/26 ,  G01L1/24

Abstract: A motion capture system includes a motion sensor having a flexible body and a fiber bragg gratings (FBG) sensor inserted into the body, a fixture configured to fix the motion sensor to a human body of a user, a light source configured to irradiate light to the motion sensor, and a measurer configured to analyze a reflected light output from the motion sensor, wherein the FBG sensor includes an optical fiber extending along a longitudinal direction of the body and a sensing unit formed in a partial region of the optical fiber and having a plurality of gratings, and wherein a change of a wavelength spectrum of the reflected light, caused by the change of an interval of the gratings due to a motion of the user, is detected to measure a motion state of the user.

公开(公告)号：US10524701B2

公开(公告)日：2020-01-07

申请号：US15612958

申请日：2017-06-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  CENTER OF HUMAN-CENTERED INTERACTION FOR COEXISTENCE

Inventor： Jinseok Kim ,  Hyun Joon Shin ,  Bum-Jae You ,  Sungwook Yang ,  Minsu Jang ,  Jun Sik Kim

IPC: A61B5/11 ,  A61B5/00 ,  G01B11/26 ,  G01L1/24

Abstract: A motion capture system includes a motion sensor having a flexible body and a fiber bragg gratings (FBG) sensor inserted into the body, a fixture configured to fix the motion sensor to a human body of a user, a light source configured to irradiate light to the motion sensor, and a measurer configured to analyze a reflected light output from the motion sensor, wherein the FBG sensor includes an optical fiber extending along a longitudinal direction of the body and a sensing unit formed in a partial region of the optical fiber and having a plurality of gratings, and wherein a change of a wavelength spectrum of the reflected light, caused by the change of an interval of the gratings due to a motion of the user, is detected to measure a motion state of the user.