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

IPC: G01B11/16 ,  G01B9/02 ,  G01D5/26 ,  G01D5/28 ,  G01R33/02 ,  G01R33/032 ,  G02B26/00

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.

公开(公告)号：CA2912750A1

公开(公告)日：2014-12-24

申请号：CA2912750

申请日：2014-06-20

Applicant: SINTEF TTO AS

Inventor： LACOLLE MATTHIEU ,  JOHANSEN IB-RUNE ,  BAKKE THOR ,  BJOR OLE-HERMANN

IPC: G01B11/14 ,  H04R23/00

Abstract: The present invention relates to an optical displacement sensor comprising a first at least partially reflective surface and a second surface having a diffractive pattern, the surfaces being provided on elements having a variable distance between them, each surface pair defining a cavity between them. The sensor also comprising at least one light source transmitting light at least one a chosen wavelength range into said cavities and at least one light detector receiving light from the cavities, wherein said diffractive patterns are adapted to direct light toward at least one detector provided in a known position relative to said diffractive surfaces..

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

IPC: G01B11/16 ,  G01B9/02 ,  G01D5/26 ,  G01D5/28 ,  G01R33/02 ,  G01R33/032 ,  G02B26/00

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.

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

IPC: G01B11/16 ,  G01B9/02 ,  G01D5/26 ,  G01D5/28 ,  G01R33/02 ,  G01R33/032 ,  G02B26/00

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.

公开(公告)号：CA2981690A1

公开(公告)日：2016-10-13

申请号：CA2981690

申请日：2016-04-11

Applicant: SINTEF TTO AS

Inventor： DAHL TOBIAS ,  LACOLLE MATTHIEU

IPC: H04R3/00 ,  G01S3/80 ,  G10L15/00 ,  G10L21/0216 ,  G10L25/78 ,  H04R1/40

Abstract: An optical microphone arrangement comprises: an array of optical microphones (4) on a substrate (8), each of said optical microphones (4) providing a signal indicative of displacement of a respective membrane (24) as a result of an incoming audible sound; at first processor (12) arranged to receive said signals from said optical microphones (4) and to perform a first processing step on said signals to produce a first output; and a second processor (14) arranged to receive at least one of said signals or said first output; wherein at least said second processor (14) determines presence of at least one element of human speech from said audible sound.