IT1248992B - Cella optoacustica per la misura di concentrazioni di specie chimiche in fluidi in genere - Google Patents

Cella optoacustica per la misura di concentrazioni di specie chimiche in fluidi in genere

Info

Publication number
IT1248992B
IT1248992B IT02075690A IT2075690A IT1248992B IT 1248992 B IT1248992 B IT 1248992B IT 02075690 A IT02075690 A IT 02075690A IT 2075690 A IT2075690 A IT 2075690A IT 1248992 B IT1248992 B IT 1248992B
Authority
IT
Italy
Prior art keywords
chemical species
fluids
concentrations
general
opto
Prior art date
Application number
IT02075690A
Other languages
English (en)
Other versions
IT9020756A1 (it
IT9020756A0 (it
Inventor
Eugenio Zanzottera
Isabella Carrer
Lorenzo Fiorina
Original Assignee
Cise 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 Spa filed Critical Cise Spa
Priority to IT02075690A priority Critical patent/IT1248992B/it
Publication of IT9020756A0 publication Critical patent/IT9020756A0/it
Priority to AT91201568T priority patent/ATE131932T1/de
Priority to DE69115577T priority patent/DE69115577T2/de
Priority to EP91201568A priority patent/EP0464902B1/en
Publication of IT9020756A1 publication Critical patent/IT9020756A1/it
Application granted granted Critical
Publication of IT1248992B publication Critical patent/IT1248992B/it

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
IT02075690A 1990-06-25 1990-06-25 Cella optoacustica per la misura di concentrazioni di specie chimiche in fluidi in genere IT1248992B (it)

Priority Applications (4)

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
AT91201568T ATE131932T1 (de) 1990-06-25 1991-06-20 Optoakustische zelle zur messung von konzentrationen chemischer stoffe in flüssigkeiten im allgemeinen
DE69115577T DE69115577T2 (de) 1990-06-25 1991-06-20 Optoakustische Zelle zur Messung von Konzentrationen chemischer Stoffe in Flüssigkeiten im allgemeinen
EP91201568A EP0464902B1 (en) 1990-06-25 1991-06-20 Optoacoustic cell for measuring concentrations of chemical species in fluids in general

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 (3)

Publication Number Publication Date
IT9020756A0 IT9020756A0 (it) 1990-06-25
IT9020756A1 IT9020756A1 (it) 1991-12-25
IT1248992B true IT1248992B (it) 1995-02-11

Family

ID=11171606

Family Applications (1)

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

Country Status (4)

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

Families Citing this family (6)

* 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
DE10200349A1 (de) * 2002-01-08 2003-07-17 Gerhart Schroff Verfahren und Anordnung zur Fremdgaserkennung im Strahlengang optischer Abbildungs- und/oder Strahlführungssysteme
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 (en) * 1983-07-19 1985-01-23 N.V. Optische Industrie "De Oude Delft" Apparatus for the non-contact disintegration of stony objects present in a body by means of sound shockwaves
US4844198A (en) * 1988-04-07 1989-07-04 Ferralli Michael W Plane wave focusing lens

Also Published As

Publication number Publication date
DE69115577D1 (de) 1996-02-01
DE69115577T2 (de) 1996-08-14
ATE131932T1 (de) 1996-01-15
EP0464902B1 (en) 1995-12-20
IT9020756A1 (it) 1991-12-25
EP0464902A1 (en) 1992-01-08
IT9020756A0 (it) 1990-06-25

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970730