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1. (WO2010081739) PHOTOACOUSTIC GAS ANALYSER WITH INTERFEROMETRIC MODULATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/081739 International Application No.: PCT/EP2010/000255
Publication Date: 22.07.2010 International Filing Date: 18.01.2010
IPC:
G01N 21/17 (2006.01) ,G01N 29/24 (2006.01) ,G01B 9/02 (2006.01) ,G01J 3/433 (2006.01) ,G01J 3/45 (2006.01) ,G02B 27/14 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
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
22
Details
24
Probes
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9
Instruments as specified in the subgroups and characterised by the use of optical measuring means
02
Interferometers
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
42
Absorption spectrometry; Double-beam spectrometry; Flicker spectrometry; Reflection spectrometry
433
Modulation spectrometry; Derivative spectrometry
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
45
Interferometric spectrometry
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
10
Beam splitting or combining systems
14
operating by reflection only
Applicants:
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE/DE]; Hansastrasse 27c 80686 München, DE (AllExceptUS)
MIKLOS, Andras [DE/DE]; DE (UsOnly)
ANGSTER, Judit [DE/DE]; DE (UsOnly)
DUBOVSKI, Zlatko [DE/DE]; DE (UsOnly)
Inventors:
MIKLOS, Andras; DE
ANGSTER, Judit; DE
DUBOVSKI, Zlatko; DE
Priority Data:
09000625.516.01.2009EP
Title (EN) PHOTOACOUSTIC GAS ANALYSER WITH INTERFEROMETRIC MODULATION
(FR) ANALYSEUR DE GAZ PHOTOACOUSTIQUE AVEC MODULATION INTERFÉROMÉTRIQUE
Abstract:
(EN) Disclosed is a photoacoustic analysing system having a light source (1) designed to emit a broadband or band-limited light beam; an interferometer (2) designed to receive the light beam, to modulate the light and to transmit the light to a photoacoustic detector. The system differs from the state of the art, as the photoacoustic detector is a gas detector (3). Also disclosed is a method using the analysing system.
(FR) La présente invention concerne un système d'analyse photoacoustique ayant une source de lumière (1) destinée à émettre un faisceau de lumière à largeur de bande limitée ou à large bande ; un interféromètre (2) conçu pour recevoir le faisceau lumineux, pour moduler la lumière et transmettre la lumière à un détecteur photoacoustique. Le détecteur photoacoustique étant un détecteur à gaz (3), le système diffère de l'état de l'art. La présente invention concerne également un procédé utilisant le système d'analyse.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)