BR112018002137A2 - detector de cancelamento de ruído - Google Patents

detector de cancelamento de ruído

Info

Publication number
BR112018002137A2
BR112018002137A2 BR112018002137A BR112018002137A BR112018002137A2 BR 112018002137 A2 BR112018002137 A2 BR 112018002137A2 BR 112018002137 A BR112018002137 A BR 112018002137A BR 112018002137 A BR112018002137 A BR 112018002137A BR 112018002137 A2 BR112018002137 A2 BR 112018002137A2
Authority
BR
Brazil
Prior art keywords
volume
gas
detector
rate
light source
Prior art date
Application number
BR112018002137A
Other languages
English (en)
Other versions
BR112018002137B1 (pt
Inventor
Johansen Ib-Rune
Original Assignee
Sintef Tto As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintef Tto As filed Critical Sintef Tto As
Publication of BR112018002137A2 publication Critical patent/BR112018002137A2/pt
Publication of BR112018002137B1 publication Critical patent/BR112018002137B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • G01L9/0079—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light with Fabry-Perot arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G01N2021/1704—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G01N2021/1708—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids with piezotransducers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N2021/3129—Determining multicomponents by multiwavelength light

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transplanting Machines (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Glass Compositions (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

a presente invenção refere-se a um detector de gás óptico para detectar um gás que absorve luz em um comprimento de onda conhecido, onde o detector de gás compreende duas membranas pa-ralelas essencialmente idênticas que definem um volume entre elas contendo o gás a ser investigado, e uma primeira fonte de luz modulada que emite luz no dito comprimento de onda conhecido para o dito volume em uma frequência escolhida, o detector sendo adaptado para detectar relativos movimentos entre as ditas membranas e os ditos movimentos apresentando uma frequência correspondendo à taxa ou a um múltiplo da taxa da dita fonte de luz pulsada, e onde o dito volume apresenta pelo menos uma abertura que permite que o gás flua sem restrições ou seja difundido no dito volume.
BR112018002137-7A 2015-09-29 2016-09-26 Detector de gás óptico BR112018002137B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20151276 2015-09-29
NO20151276A NO344002B1 (en) 2015-09-29 2015-09-29 Optical gas detector
PCT/EP2016/072865 WO2017055219A1 (en) 2015-09-29 2016-09-26 Noise canceling detector

Publications (2)

Publication Number Publication Date
BR112018002137A2 true BR112018002137A2 (pt) 2018-09-11
BR112018002137B1 BR112018002137B1 (pt) 2021-06-15

Family

ID=57044936

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018002137-7A BR112018002137B1 (pt) 2015-09-29 2016-09-26 Detector de gás óptico

Country Status (11)

Country Link
US (1) US10768096B2 (pt)
EP (1) EP3356797B1 (pt)
JP (1) JP6840134B2 (pt)
CN (1) CN108139319B (pt)
BR (1) BR112018002137B1 (pt)
CA (1) CA2994229A1 (pt)
DK (1) DK3356797T3 (pt)
EA (1) EA034832B1 (pt)
NO (1) NO344002B1 (pt)
TW (1) TWI735466B (pt)
WO (1) WO2017055219A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO343314B1 (no) * 2015-11-29 2019-01-28 Tunable As Optisk trykksensor
DE102018110689B4 (de) 2018-05-04 2023-09-21 Infineon Technologies Ag Photoaskustische Gassensoren und Verfahren zum Betreiben eines photoakustischen Gassensors
CN111323377B (zh) * 2020-04-16 2023-03-21 中国科学院电工研究所 一种具有主动降噪功能的光声光谱装置
CN111651874A (zh) * 2020-05-25 2020-09-11 国网江西省电力有限公司电力科学研究院 一种纤维材料吸声性能计算方法

Family Cites Families (27)

* Cited by examiner, † Cited by third party
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JPS5471682A (en) * 1977-11-17 1979-06-08 Horiba Ltd Photooacoustic gas analyzer
US4641377A (en) * 1984-04-06 1987-02-03 Institute Of Gas Technology Photoacoustic speaker and method
DK247786D0 (da) * 1986-05-27 1986-05-27 Brueel & Kjaer As Fotoakustisk gasanalysator
JPH01277000A (ja) * 1988-04-28 1989-11-07 Matsushita Electric Ind Co Ltd 音響センサ
CH686589A5 (de) * 1994-07-14 1996-04-30 Aritron Instr Ag Photoakustischer Gasdetektor mit optischem Infraschallmikrophon.
JPH09145683A (ja) * 1995-11-24 1997-06-06 Hitachi Ltd 光音響分析方法及び光音響分析装置
NO315177B1 (no) 2001-11-29 2003-07-21 Sinvent As Optisk forskyvnings-sensor
US7245380B2 (en) 2002-06-10 2007-07-17 William Marsh Rice University Quartz-enhanced photoacoustic spectroscopy
FI116859B (fi) * 2002-09-30 2006-03-15 Noveltech Solutions Ltd Fotoakustinen detektori
US7263871B2 (en) 2004-12-08 2007-09-04 Finesse Solutions Llc. System and method for gas analysis using doubly resonant photoacoustic spectroscopy
NO322368B1 (no) 2005-04-15 2006-09-25 Sinvent As Infrarod deteksjon av gass - diffraktiv.
NO20051851A (no) 2005-04-15 2006-10-02 Sinvent As Justerbart interferensfilter
DE102005030151B3 (de) * 2005-06-28 2006-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Photoakustischer Freifelddetektor
ITTO20050887A1 (it) * 2005-12-20 2007-06-21 Consiglio Nazionale Ricerche Spettrofotometro e procedimento spettrofotometrico utilizzanti un risonatore a cavita' fabry-perot
EP2059787A1 (en) * 2006-08-31 2009-05-20 Koninklijke Philips Electronics N.V. Optical cavity-enhanced photo acoustic trace gas detector with variable light intensity modulator
CN201034929Y (zh) * 2007-04-04 2008-03-12 南京旭飞光电有限公司 光纤气体传感器
JP2009036578A (ja) * 2007-07-31 2009-02-19 Nippon Telegr & Teleph Corp <Ntt> 光吸収測定装置
JP2009294023A (ja) * 2008-06-04 2009-12-17 National Institute Of Advanced Industrial & Technology 超音波計測装置及び計測方法
US8342005B2 (en) * 2008-12-01 2013-01-01 Lawrence Livermore National Security, Llc Micro-optical-mechanical system photoacoustic spectrometer
NO336140B1 (no) 2009-09-18 2015-05-26 Sintef Aktuator for mikro optisk enhet
JP5471682B2 (ja) 2010-03-23 2014-04-16 ヤマハ株式会社 鍵盤装置
CN102374970A (zh) * 2010-08-17 2012-03-14 西安金和光学科技有限公司 波纹管型光纤气体感测装置
JP5832182B2 (ja) * 2011-07-19 2015-12-16 キヤノン株式会社 音響信号受信装置およびイメージング装置
JP6049293B2 (ja) * 2011-12-26 2016-12-21 キヤノン株式会社 音響波取得装置
EP2770319B2 (de) * 2013-02-25 2022-01-26 Sick Ag Gasmessgerät
NO20130884A1 (no) 2013-06-21 2014-12-22 Sinvent As Sensorelement med optisk forskyvning
JP6117639B2 (ja) * 2013-07-03 2017-04-19 浜松ホトニクス株式会社 音圧分布測定装置

Also Published As

Publication number Publication date
US20180224370A1 (en) 2018-08-09
CN108139319A (zh) 2018-06-08
TW201721128A (zh) 2017-06-16
EA034832B1 (ru) 2020-03-26
WO2017055219A1 (en) 2017-04-06
JP6840134B2 (ja) 2021-03-10
US10768096B2 (en) 2020-09-08
NO20151276A1 (en) 2017-03-30
JP2018528426A (ja) 2018-09-27
CA2994229A1 (en) 2017-04-06
CN108139319B (zh) 2021-08-27
TWI735466B (zh) 2021-08-11
DK3356797T3 (da) 2021-11-08
EP3356797B1 (en) 2021-08-04
EP3356797A1 (en) 2018-08-08
BR112018002137B1 (pt) 2021-06-15
NO344002B1 (en) 2019-08-12
EA201890624A1 (ru) 2018-08-31

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/09/2016, OBSERVADAS AS CONDICOES LEGAIS.