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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
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).
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公开(公告)号：CA3078863A1
公开(公告)日：2019-04-18
申请号：CA3078863
申请日：2018-10-10
Applicant: SINTEF TTO AS
Inventor： KNUDSEN SVERRE , LACOLLE MATTHIEU , STAMNES OYVIND NISTAD , KOLBERG SIGBJORN , SKOKIC ZELJIKO , HJELSTUEN MAGNUS BLIHOVDE , GJESSING JO , VOGL ANDREAS , JOHANSEN IB-RUNE
Abstract: A field detector (2) comprises a field-responsive element (10) which undergoes a dimensional change when exposed to a predetermined field; and an interferometric read-out arrangement arranged to detect the dimensional change of the field-responsive element. A light source (4) is arranged to provide a measurement beam reflected from the field-responsive element (10) and a reference beam not reflected from the field-responsive element (10), an optical detector (6) being disposed so as to detect at least part of an interference pattern produced by the measurement beam and the reference beam. The field-responsive element (10) has a shape comprising a curved surface and is constrained at least one edge (12) thereof such that the dimensional change causes the curved surface to be displaced in a direction which changes an optical path length of the measurement beam relative to the reference beam, thereby changing the interference pattern detected by said optical detector.
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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
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).
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公开(公告)号：AU2018349179B2
公开(公告)日：2024-02-15
申请号：AU2018349179
申请日：2018-10-10
Applicant: SINTEF TTO AS
Inventor： KNUDSEN SVERRE , LACOLLE MATTHIEU , STAMNES ØYVIND NISTAD , KOLBERG SIGBJØRN , SKOKIC ZELJIKO , HJELSTUEN MAGNUS BLIHOVDE , GJESSING JO , VOGL ANDREAS , JOHANSEN IB-RUNE
Abstract: A field detector (2) comprises a field-responsive element (10) which undergoes a dimensional change when exposed to a predetermined field; and an interferometric read-out arrangement arranged to detect the dimensional change of the field-responsive element. A light source (4) is arranged to provide a measurement beam reflected from the field-responsive element (10) and a reference beam not reflected from the field-responsive element (10), an optical detector (6) being disposed so as to detect at least part of an interference pattern produced by the measurement beam and the reference beam. The field-responsive element (10) has a shape comprising a curved surface and is constrained at least one edge (12) thereof such that the dimensional change causes the curved surface to be displaced in a direction which changes an optical path length of the measurement beam relative to the reference beam, thereby changing the interference pattern detected by said optical detector.
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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).
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Patent Agency Ranking
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
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).
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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
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).
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公开(公告)号：AU2018349179A1
公开(公告)日：2020-05-07
申请号：AU2018349179
申请日：2018-10-10
Applicant: SINTEF TTO AS
Inventor： KNUDSEN SVERRE , LACOLLE MATTHIEU , STAMNES ØYVIND NISTAD , KOLBERG SIGBJØRN , SKOKIC ZELJIKO , HJELSTUEN MAGNUS BLIHOVDE , GJESSING JO , VOGL ANDREAS , JOHANSEN IB-RUNE
Abstract: A field detector (2) comprises a field-responsive element (10) which undergoes a dimensional change when exposed to a predetermined field; and an interferometric read-out arrangement arranged to detect the dimensional change of the field-responsive element. A light source (4) is arranged to provide a measurement beam reflected from the field-responsive element (10) and a reference beam not reflected from the field-responsive element (10), an optical detector (6) being disposed so as to detect at least part of an interference pattern produced by the measurement beam and the reference beam. The field-responsive element (10) has a shape comprising a curved surface and is constrained at least one edge (12) thereof such that the dimensional change causes the curved surface to be displaced in a direction which changes an optical path length of the measurement beam relative to the reference beam, thereby changing the interference pattern detected by said optical detector.
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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).
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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).
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