DE69115577T2 - Optoakustische Zelle zur Messung von Konzentrationen chemischer Stoffe in Flüssigkeiten im allgemeinen - Google Patents

Optoakustische Zelle zur Messung von Konzentrationen chemischer Stoffe in Flüssigkeiten im allgemeinen

Info

Publication number
DE69115577T2
DE69115577T2 DE69115577T DE69115577T DE69115577T2 DE 69115577 T2 DE69115577 T2 DE 69115577T2 DE 69115577 T DE69115577 T DE 69115577T DE 69115577 T DE69115577 T DE 69115577T DE 69115577 T2 DE69115577 T2 DE 69115577T2
Authority
DE
Germany
Prior art keywords
concentration
measuring
general
liquids
optoacoustic cell
Prior art date
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 - Fee Related
Application number
DE69115577T
Other languages
English (en)
Other versions
DE69115577D1 (de
Inventor
Eugenio Zanzottera
Isabella Carrer
Lorenzo Fiorina
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.)
CISE Centro Informazioni Studi e Esperienze SpA
Original Assignee
CISE Centro Informazioni Studi e Esperienze SpA
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 CISE Centro Informazioni Studi e Esperienze SpA filed Critical CISE Centro Informazioni Studi e Esperienze SpA
Publication of DE69115577D1 publication Critical patent/DE69115577D1/de
Application granted granted Critical
Publication of DE69115577T2 publication Critical patent/DE69115577T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2462—Probes with waveguides, e.g. SAW devices
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/221—Arrangements for directing or focusing the acoustical waves
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2456—Focusing probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/022—Liquids
    • G01N2291/0222—Binary liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver
DE69115577T 1990-06-25 1991-06-20 Optoakustische Zelle zur Messung von Konzentrationen chemischer Stoffe in Flüssigkeiten im allgemeinen Expired - Fee Related DE69115577T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02075690A IT1248992B (it) 1990-06-25 1990-06-25 Cella optoacustica per la misura di concentrazioni di specie chimiche in fluidi in genere

Publications (2)

Publication Number Publication Date
DE69115577D1 DE69115577D1 (de) 1996-02-01
DE69115577T2 true DE69115577T2 (de) 1996-08-14

Family

ID=11171606

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69115577T Expired - Fee Related DE69115577T2 (de) 1990-06-25 1991-06-20 Optoakustische Zelle zur Messung von Konzentrationen chemischer Stoffe in Flüssigkeiten im allgemeinen

Country Status (4)

Country Link
EP (1) EP0464902B1 (de)
AT (1) ATE131932T1 (de)
DE (1) DE69115577T2 (de)
IT (1) IT1248992B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200349A1 (de) * 2002-01-08 2003-07-17 Gerhart Schroff Verfahren und Anordnung zur Fremdgaserkennung im Strahlengang optischer Abbildungs- und/oder Strahlführungssysteme

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO300078B1 (no) * 1995-02-10 1997-04-01 Sinvent As Fotoakustisk gassdetektor
GB9615268D0 (en) * 1996-07-20 1996-09-04 Optel Instr Limited Measurement sensor and method
DE102005030151B3 (de) * 2005-06-28 2006-11-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Photoakustischer Freifelddetektor
GR1010249B (el) 2020-10-29 2022-06-16 Αριστοτελειο Πανεπιστημιο Θεσσαλονικης-Ειδικος Λογαριασμος Κονδυλιων Ερευνας, Διαταξη με αισθητηρα οπτικης απορροφησης με μεγαλη ευαισθησια και μεθοδος χρησης της για περιβαλλοντικες εφαρμογες
CN113075130A (zh) * 2021-02-26 2021-07-06 深圳市美思先端电子有限公司 光声学气体浓度检测装置及其控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE694806C (de) * 1936-07-14 1940-08-08 Siemens App Schallspiegel fuer Peilgeraete zur Richtungsbestimmung von Flugzeuggeraeuschen
US4372149A (en) * 1980-11-17 1983-02-08 Zharov Vladimir P Laser-excited spectrophone
EP0131654A1 (de) * 1983-07-19 1985-01-23 N.V. Optische Industrie "De Oude Delft" Einrichtung zum berührungsfreien Zertrümmern von im Körper befindlichen steinigen Gegenständen mittels Schallschockwellen
US4844198A (en) * 1988-04-07 1989-07-04 Ferralli Michael W Plane wave focusing lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200349A1 (de) * 2002-01-08 2003-07-17 Gerhart Schroff Verfahren und Anordnung zur Fremdgaserkennung im Strahlengang optischer Abbildungs- und/oder Strahlführungssysteme

Also Published As

Publication number Publication date
DE69115577D1 (de) 1996-02-01
IT9020756A1 (it) 1991-12-25
IT1248992B (it) 1995-02-11
ATE131932T1 (de) 1996-01-15
IT9020756A0 (de) 1990-06-25
EP0464902A1 (de) 1992-01-08
EP0464902B1 (de) 1995-12-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee