DE3509532C2 - - Google Patents

Info

Publication number
DE3509532C2
DE3509532C2 DE19853509532 DE3509532A DE3509532C2 DE 3509532 C2 DE3509532 C2 DE 3509532C2 DE 19853509532 DE19853509532 DE 19853509532 DE 3509532 A DE3509532 A DE 3509532A DE 3509532 C2 DE3509532 C2 DE 3509532C2
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Expired
Application number
DE19853509532
Other languages
German (de)
Other versions
DE3509532A1 (de
Inventor
Walter Dipl.-Ing. 6239 Kriftel De Fabinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Priority to DE19853509532 priority Critical patent/DE3509532A1/de
Publication of DE3509532A1 publication Critical patent/DE3509532A1/de
Application granted granted Critical
Publication of DE3509532C2 publication Critical patent/DE3509532C2/de
Granted legal-status Critical Current

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
    • 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
    • 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
    • G01N21/03—Cuvette constructions
    • G01N2021/0385—Diffusing membrane; Semipermeable membrane
    • 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
DE19853509532 1985-03-16 1985-03-16 Fotometer Granted DE3509532A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853509532 DE3509532A1 (de) 1985-03-16 1985-03-16 Fotometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853509532 DE3509532A1 (de) 1985-03-16 1985-03-16 Fotometer

Publications (2)

Publication Number Publication Date
DE3509532A1 DE3509532A1 (de) 1986-09-18
DE3509532C2 true DE3509532C2 (ja) 1987-04-16

Family

ID=6265431

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853509532 Granted DE3509532A1 (de) 1985-03-16 1985-03-16 Fotometer

Country Status (1)

Country Link
DE (1) DE3509532A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214572A1 (de) * 1992-05-03 1993-11-04 Roland Dr Ing Emmrich Hohler formkoerper aus keramischem werkstoff
DE19742053C1 (de) * 1997-09-24 1999-01-28 Draeger Sicherheitstech Gmbh Infrarotmeßanordnung mit erweitertem Meßbereich

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866681A (en) * 1988-03-09 1989-09-12 Mine Safety Appliances Company Photo-acoustic detector
WO1995011444A1 (de) * 1993-10-20 1995-04-27 Roland Emmrich Hohler vakuumdichter formkörper aus keramischem werkstoff
ATE266861T1 (de) * 1995-09-04 2004-05-15 Siemens Building Tech Ag Photoakustischer gassensor und dessen verwendung
US5933245A (en) * 1996-12-31 1999-08-03 Honeywell Inc. Photoacoustic device and process for multi-gas sensing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD112174A1 (ja) * 1974-05-16 1975-03-20
JPS5471682A (en) * 1977-11-17 1979-06-08 Horiba Ltd Photooacoustic gas analyzer
WO1985003574A1 (en) * 1984-02-07 1985-08-15 Oskar Oehler Device for the photoacoustic detection of gas
DE3426472A1 (de) * 1984-07-18 1986-01-30 Hartmann & Braun Ag, 6000 Frankfurt Fotometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214572A1 (de) * 1992-05-03 1993-11-04 Roland Dr Ing Emmrich Hohler formkoerper aus keramischem werkstoff
DE19742053C1 (de) * 1997-09-24 1999-01-28 Draeger Sicherheitstech Gmbh Infrarotmeßanordnung mit erweitertem Meßbereich
US6075246A (en) * 1997-09-24 2000-06-13 Drager Sicherheitstechnik Gmbh Infrared measuring arrangement with expanded measuring range

Also Published As

Publication number Publication date
DE3509532A1 (de) 1986-09-18

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8380 Miscellaneous part iii

Free format text: SPALTE 1, ZEILE 33 "POLYRINYLFLOURID" AENDERN IN "POLYRINYLIDENFLOURID"

8339 Ceased/non-payment of the annual fee