NO20051214L - Fotoakustisk gassfoler og fremgangsmate for dens fremstilling - Google Patents
Fotoakustisk gassfoler og fremgangsmate for dens fremstillingInfo
- Publication number
- NO20051214L NO20051214L NO20051214A NO20051214A NO20051214L NO 20051214 L NO20051214 L NO 20051214L NO 20051214 A NO20051214 A NO 20051214A NO 20051214 A NO20051214 A NO 20051214A NO 20051214 L NO20051214 L NO 20051214L
- Authority
- NO
- Norway
- Prior art keywords
- microphone
- measuring
- conductor plate
- photoacoustic gas
- module
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
En fotoakustisk gassføler inneholder en måle- og en referansecelle (1 henholdsvis 2), en stråleinnretning med en lyskilde (4), og en mikrofonanordning for målingen av trykkforskjellen mellom måle- og referansecellen (1 henholdsvis 2). Mikrofonanordningen og lyskilden (4) er tilveiebrakt på en mikrofon- henholdsvis lampelederplate (8 henholdsvis 10) og er sammen med måle- og referansecellen (1 henholdsvis 2) plassert på en felles modullederplate (P). Mikrofonanordningen inneholder en differansemikrofon (3) som er utformet som en såkalt Noise Canceling mikrofon av den type som anvendes i mobiltelefoner. Fremgangsmåten for fremstilling av den fotoakustiske gassføler er kjennetegnet ved at den på lampelederplaten (10) tilveiebrakte lyskilde (4), den på mikrofonlederplaten (8) tilveiebrakte mikrofonanordning så vel som måle- og referansecellene (1 henholdsvis 2) formonteres til en målemodul (M) ved hjelp av en batch-prosess, hvilken målemodul (M) plasseres på modullederplaten (P).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04005481A EP1574840A1 (de) | 2004-03-08 | 2004-03-08 | Photoakustischer Gassensor und Verfahren zu dessen Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20051214D0 NO20051214D0 (no) | 2005-03-08 |
NO20051214L true NO20051214L (no) | 2005-09-09 |
Family
ID=34814266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20051214A NO20051214L (no) | 2004-03-08 | 2005-03-08 | Fotoakustisk gassfoler og fremgangsmate for dens fremstilling |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1574840A1 (no) |
KR (1) | KR20060043413A (no) |
CN (1) | CN100489495C (no) |
AU (1) | AU2005200848A1 (no) |
HK (1) | HK1083124A1 (no) |
NO (1) | NO20051214L (no) |
PL (1) | PL373063A1 (no) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006048839B4 (de) * | 2006-10-16 | 2010-01-07 | Eads Deutschland Gmbh | Photoakustische Gassensor-Vorrichtung mit mehreren Messzellen |
US7886576B2 (en) * | 2006-11-06 | 2011-02-15 | Mine Safety Appliances Company | Photoacoustic gas sensor |
US8848191B2 (en) | 2012-03-14 | 2014-09-30 | Honeywell International Inc. | Photoacoustic sensor with mirror |
US10302554B2 (en) | 2016-06-03 | 2019-05-28 | Ingineon Technologies Ag | Acoustic wave detector |
US10451589B2 (en) | 2016-06-03 | 2019-10-22 | Infineon Technologies Ag | Acoustic wave detector |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH679076A5 (no) * | 1989-06-13 | 1991-12-13 | Oscar Dr Sc Nat Oehler | |
US5651074A (en) * | 1995-05-11 | 1997-07-22 | Lucent Technologies Inc. | Noise canceling gradient microphone assembly |
PT760474E (pt) * | 1995-09-04 | 2004-10-29 | Siemens Building Tech Ag | Detector fotoacustico de gas e sua utilizacao |
DE59712692D1 (de) * | 1997-01-25 | 2006-08-24 | Siemens Schweiz Ag | Optoakustischer Gassensor |
EP1195597A1 (de) * | 2000-10-09 | 2002-04-10 | Siemens Building Technologies AG | Optoakustische Messanordnung und Verwendung der Messanordnung |
-
2004
- 2004-03-08 EP EP04005481A patent/EP1574840A1/de not_active Withdrawn
-
2005
- 2005-02-22 PL PL05373063A patent/PL373063A1/xx not_active Application Discontinuation
- 2005-02-25 AU AU2005200848A patent/AU2005200848A1/en not_active Abandoned
- 2005-03-04 KR KR1020050018168A patent/KR20060043413A/ko not_active Application Discontinuation
- 2005-03-08 CN CNB2005100543367A patent/CN100489495C/zh not_active Expired - Fee Related
- 2005-03-08 NO NO20051214A patent/NO20051214L/no not_active Application Discontinuation
-
2006
- 2006-03-10 HK HK06103098.9A patent/HK1083124A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN100489495C (zh) | 2009-05-20 |
AU2005200848A1 (en) | 2005-09-22 |
HK1083124A1 (en) | 2006-06-23 |
KR20060043413A (ko) | 2006-05-15 |
NO20051214D0 (no) | 2005-03-08 |
EP1574840A1 (de) | 2005-09-14 |
PL373063A1 (en) | 2005-09-19 |
CN1667395A (zh) | 2005-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CREP | Change of representative |
Representative=s name: ONSAGERS AS, POSTBOKS 6963 ST OLAVS PLASS, 0130 OS |
|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |