-
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.
-
公开(公告)号：NO20151276A1
公开(公告)日：2017-03-30
申请号：NO20151276
申请日：2015-09-29
Applicant: SINTEF TTO AS
Inventor： JOHANSEN IB-RUNE
Abstract: The present invention relates to an optical gas detector for detecting a gas absorbing light at a known wavelength, wherein the gas detector comprises two essentially identical, parallel membranes defining a volume between them containing the gas to be investigated, and a modulated first light source emitting light at said known wavelength into said volume at a chosen frequency, the detector is adapted to detect relative movements between said membranes and said movements having a frequency corresponding to the rate or a multiple of the rate of said pulsed light source, and wherein the said volume has at least one opening allowing the gas to unrestricted flow or diffuse into said volume.
-
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
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：DK2478404T3
公开(公告)日：2020-05-11
申请号：DK10765764
申请日：2010-09-16
Applicant: SINTEF TTO AS
Inventor： TYHOLT FRODE , BAKKE THOR , JOHANSEN IB-RUNE , WANG DAG THORSTEIN , VOGL ANDREAS
-
Patent Agency Ranking
公开(公告)号：EA034832B1
公开(公告)日：2020-03-26
申请号：EA201890624
申请日：2016-09-26
Applicant: SINTEF TTO AS
Inventor： JOHANSEN IB-RUNE
IPC: G01N21/17
Abstract: Изобретениеотноситсяк оптическомудетекторугазадляобнаружениягаза, поглощающегосветнаизвестнойдлиневолны, приэтомдетекторгазасодержитпоменьшеймередвепосуществуидентичныепараллельныемембраны, определяющиеобъеммеждуними, которыйсодержитподлежащийисследованиюгаз, имодулированныйпервыйисточниксвета, испускающийсветнаупомянутойизвестнойдлиневолныв упомянутыйобъемпривыбраннойчастоте, причемдетекторприспособлендляобнаруженияотносительныхперемещенийупомянутыхмембран, аупомянутыеперемещенияимеютчастоту, соответствующуючастотеилимножествучастотупомянутогоимпульсногоисточникасвета, причемупомянутыйобъемимеетпоменьшеймереодноотверстие, позволяющеегазунеограниченнотечьилидиффундироватьв упомянутыйобъем.
-
公开(公告)号：DK3356797T3
公开(公告)日：2021-11-08
申请号：DK16774908
申请日：2016-09-26
Applicant: SINTEF TTO AS
Inventor： JOHANSEN IB-RUNE
IPC: G01N21/17
-
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.
-
公开(公告)号：NO344002B1
公开(公告)日：2019-08-12
申请号：NO20151276
申请日：2015-09-29
Applicant: SINTEF TTO AS
Inventor： JOHANSEN IB-RUNE
Abstract: The present invention relates to an optical gas detector for detecting a gas absorbing light at a known wavelength, wherein the gas detector comprises two essentially identical, parallel membranes defining a volume between them containing the gas to be investigated, and a modulated first light source emitting light at said known wavelength into said volume at a chosen frequency, the detector is adapted to detect relative movements between said membranes and said movements having a frequency corresponding to the rate or a multiple of the rate of said pulsed light source, and wherein the said volume has at least one opening allowing the gas to unrestricted flow or diffuse into said volume.
-
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.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.045 seconds)
