公开(公告)号：CA3025452A1

公开(公告)日：2017-11-30

申请号：CA3025452

申请日：2017-05-26

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS

IPC: G01P15/093

Abstract: An optical accelerometer arrangement (20) comprises an array of optical accelerometers (26)attached to a common structure (22). Each oftheoptical accelerometers (26) providesa signal indicative of displacement of a measurement mass (6) as a result of an acceleration along a given axis applied to the common structure (22). The arrangement (20) also comprises a processor (31a) configured to determine an estimate of the acceleration using the signals provided by the accelerometers (26). The arrangement (20) may be attached to an object (40; 46; 0; 52) which also comprises a gyroscope (44) and/or a camera (48).

公开(公告)号：CA3063819A1

公开(公告)日：2018-11-22

申请号：CA3063819

申请日：2018-05-17

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS ,  PETTERSEN ODD KRISTEN OSTERN

IPC: G06F3/043 ,  G01H9/00

Abstract: An input device (4) comprises a plurality of optical vibration sensors (2) mounted in a common housing. Each optical vibration sensor (2) comprises a diffractive optical element (14); a light source (10) arranged to illuminate the diffractive optical element (10) such that a first portion of light (32) passes through the diffractive optical element (14) and a second portion of light (30) is reflected from the diffractive optical element (14); and a photo detector (12) arranged to detect an interference pattern generated by said first and second portions of light (10, 12). The optical vibration sensor (2) is configured so that in use, after the first portion of light (32) passes through the diffractive optical element (14), the first portion of light (32) is reflected from a reflective surface (26) onto the photo detector (12). The input device (4) is placed in contact with a surface of a solid body (24), and an object is brought into physical contact with the surface of the solid body (24), thereby causing vibrations in the solid body (24). The vibrations are detected using two or more of the optical vibration sensors (2). The relative phase(s) of the vibrations are used to determine information regarding the point of contact of the object on the surface of the solid body (24).

公开(公告)号：AU2018268363A1

公开(公告)日：2020-01-16

申请号：AU2018268363

申请日：2018-05-17

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS ,  PETTERSEN ODD KRISTEN ØSTERN

IPC: G06F3/043 ,  G01H9/00

Abstract: An input device (4) comprises a plurality of optical vibration sensors (2) mounted in a common housing. Each optical vibration sensor (2) comprises a diffractive optical element (14); a light source (10) arranged to illuminate the diffractive optical element (10) such that a first portion of light (32) passes through the diffractive optical element (14) and a second portion of light (30) is reflected from the diffractive optical element (14); and a photo detector (12) arranged to detect an interference pattern generated by said first and second portions of light (10, 12). The optical vibration sensor (2) is configured so that in use, after the first portion of light (32) passes through the diffractive optical element (14), the first portion of light (32) is reflected from a reflective surface (26) onto the photo detector (12). The input device (4) is placed in contact with a surface of a solid body (24), and an object is brought into physical contact with the surface of the solid body (24), thereby causing vibrations in the solid body (24). The vibrations are detected using two or more of the optical vibration sensors (2). The relative phase(s) of the vibrations are used to determine information regarding the point of contact of the object on the surface of the solid body (24).

公开(公告)号：AU2017271003B2

公开(公告)日：2022-05-26

申请号：AU2017271003

申请日：2017-05-26

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS

IPC: G01P15/093

Abstract: An optical accelerometer arrangement (20) comprises an array of optical accelerometers (26)attached to a common structure (22). Each oftheoptical accelerometers (26) providesa signal indicative of displacement of a measurement mass (6) as a result of an acceleration along a given axis applied to the common structure (22). The arrangement (20) also comprises a processor (31a) configured to determine an estimate of the acceleration using the signals provided by the accelerometers (26). The arrangement (20) may be attached to an object (40; 46; 0; 52) which also comprises a gyroscope (44) and/or a camera (48).

公开(公告)号：FI4280039T3

公开(公告)日：2025-01-10

申请号：FI23196990

申请日：2018-05-17

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS ,  PETTERSEN ODD KRISTEN ØSTERN

IPC: G06F3/043 ,  G01H9/00

Abstract: An input device (4), which is for detecting vibrations in a solid body (24) when the input device (4) is in contact with a surface of said solid body (24), comprises a plurality of sensor units mounted in a main housing (16). Each sensor unit comprises a sensor housing (6) and an optical vibration sensor (2) mounted in the sensor housing (6). Each optical vibration sensor (2) comprises a diffractive optical element (14); a light source (10) arranged to illuminate said diffractive optical element (14) such that a first portion of light (32) passes through the diffractive optical element (14) and a second portion of light (30) is reflected from the diffractive optical element (14); and a photo detector (12) arranged to detect an interference pattern generated by said first and second portions of light (32, 30). The optical vibration sensor (2) is configured so that in use, after the first portion of light (32) passes through the diffractive optical element (14), the first portion of light (32) is reflected from a reflective surface (26) onto the photo detector (12). The average density of each sensor housing (6) is higher than the average density of the portion (20) of the main housing (16) connecting the sensors (2).

公开(公告)号：AU2018268363B2

公开(公告)日：2022-09-22

申请号：AU2018268363

申请日：2018-05-17

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS ,  PETTERSEN ODD KRISTEN ØSTERN

IPC: G06F3/043 ,  G01H9/00

Abstract: An input device (4) comprises a plurality of optical vibration sensors (2) mounted in a common housing. Each optical vibration sensor (2) comprises a diffractive optical element (14); a light source (10) arranged to illuminate the diffractive optical element (10) such that a first portion of light (32) passes through the diffractive optical element (14) and a second portion of light (30) is reflected from the diffractive optical element (14); and a photo detector (12) arranged to detect an interference pattern generated by said first and second portions of light (10, 12). The optical vibration sensor (2) is configured so that in use, after the first portion of light (32) passes through the diffractive optical element (14), the first portion of light (32) is reflected from a reflective surface (26) onto the photo detector (12). The input device (4) is placed in contact with a surface of a solid body (24), and an object is brought into physical contact with the surface of the solid body (24), thereby causing vibrations in the solid body (24). The vibrations are detected using two or more of the optical vibration sensors (2). The relative phase(s) of the vibrations are used to determine information regarding the point of contact of the object on the surface of the solid body (24).

公开(公告)号：AU2017271003A1

公开(公告)日：2019-01-17

申请号：AU2017271003

申请日：2017-05-26

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS GULDEN ,  BJERKENG MAGNUS CHRISTIAN ,  VOGL ANDREAS

IPC: G01P15/093

Abstract: An optical accelerometer arrangement (20) comprises an array of optical accelerometers (26)attached to a common structure (22). Each oftheoptical accelerometers (26) providesa signal indicative of displacement of a measurement mass (6) as a result of an acceleration along a given axis applied to the common structure (22). The arrangement (20) also comprises a processor (31a) configured to determine an estimate of the acceleration using the signals provided by the accelerometers (26). The arrangement (20) may be attached to an object (40; 46; 0; 52) which also comprises a gyroscope (44) and/or a camera (48).