WO2009145578A3 - Optical hydrogen sensor - Google Patents

Optical hydrogen sensor Download PDF

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Publication number
WO2009145578A3
WO2009145578A3 PCT/KR2009/002849 KR2009002849W WO2009145578A3 WO 2009145578 A3 WO2009145578 A3 WO 2009145578A3 KR 2009002849 W KR2009002849 W KR 2009002849W WO 2009145578 A3 WO2009145578 A3 WO 2009145578A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical
light
hydrogen sensor
sensing module
module
Prior art date
Application number
PCT/KR2009/002849
Other languages
French (fr)
Korean (ko)
Other versions
WO2009145578A2 (en
Inventor
정현식
이세희
심재영
이재동
진정모
Original Assignee
서강대학교 산학협력단
동아공업 주식회사
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 서강대학교 산학협력단, 동아공업 주식회사 filed Critical 서강대학교 산학협력단
Publication of WO2009145578A2 publication Critical patent/WO2009145578A2/en
Publication of WO2009145578A3 publication Critical patent/WO2009145578A3/en

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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/14—Arrangements for focusing or reflecting ray or beam

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The present invention relates to an optical hydrogen sensor which comprises: (a) a sensing module including gasochromic thin film; (b) an optical module; and (c) an optical fiber which optically connects the sensing module and optical module. The optical module comprises (i) a light source which generates a light beam, (ⅱ) a light splitter which splits the light beam from the light source, (ⅲ) a collimating lens which converts the light beam split by the light splitter into parallel lights, (ⅳ) a quarter-wave plate which changes the polarizing direction of the parallel light beams having passed through the collimating lens by 90 °, (v) an object lens which collects the light beams that have passed through the quarter-wave plate, and (vi) a detector which detects the light reflected from the sensing module. The present invention applies an optical pickup such as a conventional CD-ROM or DVD-ROM, and consequently the optical hydrogen sensor can be smaller. Furthermore, time and costs needed for manufacture can be greatly cut down if a cheap optical pick-up device is simply changed and applied to the optical hydrogen sensor.
PCT/KR2009/002849 2008-05-28 2009-05-28 Optical hydrogen sensor WO2009145578A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080049420A KR20090123376A (en) 2008-05-28 2008-05-28 Optical hydrogen sensor
KR10-2008-0049420 2008-05-28

Publications (2)

Publication Number Publication Date
WO2009145578A2 WO2009145578A2 (en) 2009-12-03
WO2009145578A3 true WO2009145578A3 (en) 2010-03-04

Family

ID=41377800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002849 WO2009145578A2 (en) 2008-05-28 2009-05-28 Optical hydrogen sensor

Country Status (2)

Country Link
KR (1) KR20090123376A (en)
WO (1) WO2009145578A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101282768B1 (en) * 2010-12-21 2013-07-05 서강대학교산학협력단 Hydrogen sensing apparatus and method for producing sensor thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0127519B1 (en) * 1994-06-29 1998-04-04 배순훈 Light pick-up apparatus
JP2005265590A (en) * 2004-03-18 2005-09-29 Fujikura Ltd Hydrogen sensor and its use

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0127519B1 (en) * 1994-06-29 1998-04-04 배순훈 Light pick-up apparatus
JP2005265590A (en) * 2004-03-18 2005-09-29 Fujikura Ltd Hydrogen sensor and its use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JEONG, H. S.: "Hydrogen Gas sensor.", THE MAGAZINE OF THE SOCIETY OF AIR-CONDITIONING AND REFRIGERATION ENGINEERING OF KOREA., vol. 11, no. 9, September 2007 (2007-09-01), pages 23 - 28 *

Also Published As

Publication number Publication date
WO2009145578A2 (en) 2009-12-03
KR20090123376A (en) 2009-12-02

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