FR2690994A1 - Analyseur de spectre à ondes acoustiques de volume. - Google Patents

Analyseur de spectre à ondes acoustiques de volume. Download PDF

Info

Publication number
FR2690994A1
FR2690994A1 FR9205499A FR9205499A FR2690994A1 FR 2690994 A1 FR2690994 A1 FR 2690994A1 FR 9205499 A FR9205499 A FR 9205499A FR 9205499 A FR9205499 A FR 9205499A FR 2690994 A1 FR2690994 A1 FR 2690994A1
Authority
FR
France
Prior art keywords
transducer
transducers
volume
face
analyzer according
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.)
Granted
Application number
FR9205499A
Other languages
English (en)
French (fr)
Other versions
FR2690994B1 (enrdf_load_stackoverflow
Inventor
Desbois Jean
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9205499A priority Critical patent/FR2690994A1/fr
Priority to PCT/FR1993/000427 priority patent/WO1993022832A1/fr
Publication of FR2690994A1 publication Critical patent/FR2690994A1/fr
Application granted granted Critical
Publication of FR2690994B1 publication Critical patent/FR2690994B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/17—Spectrum analysis; Fourier analysis with optical or acoustical auxiliary devices
    • 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
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/42—Detecting the response signal, e.g. electronic circuits specially adapted therefor by frequency filtering or by tuning to resonant frequency
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0426—Bulk waves, e.g. quartz crystal microbalance, torsional waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR9205499A 1992-05-05 1992-05-05 Analyseur de spectre à ondes acoustiques de volume. Granted FR2690994A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9205499A FR2690994A1 (fr) 1992-05-05 1992-05-05 Analyseur de spectre à ondes acoustiques de volume.
PCT/FR1993/000427 WO1993022832A1 (fr) 1992-05-05 1993-05-04 Analyseur de spectre a ondes acoutiques de volume

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9205499A FR2690994A1 (fr) 1992-05-05 1992-05-05 Analyseur de spectre à ondes acoustiques de volume.

Publications (2)

Publication Number Publication Date
FR2690994A1 true FR2690994A1 (fr) 1993-11-12
FR2690994B1 FR2690994B1 (enrdf_load_stackoverflow) 1997-02-28

Family

ID=9429525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9205499A Granted FR2690994A1 (fr) 1992-05-05 1992-05-05 Analyseur de spectre à ondes acoustiques de volume.

Country Status (2)

Country Link
FR (1) FR2690994A1 (enrdf_load_stackoverflow)
WO (1) WO1993022832A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB988102A (en) * 1962-08-03 1965-04-07 Marconi Co Ltd Improvements in or relating to wave-energy delay cells
US4259649A (en) * 1979-07-26 1981-03-31 Westinghouse Electric Corp. Electroacoustic delay line apparatus
US4292608A (en) * 1979-07-26 1981-09-29 Westinghouse Electric Corp. Electroacoustic delay line apparatus
US4827229A (en) * 1987-06-30 1989-05-02 Litton Systems, Inc. Broad band bulk acoustic wave spectrum analyzer/channelizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB988102A (en) * 1962-08-03 1965-04-07 Marconi Co Ltd Improvements in or relating to wave-energy delay cells
US4259649A (en) * 1979-07-26 1981-03-31 Westinghouse Electric Corp. Electroacoustic delay line apparatus
US4292608A (en) * 1979-07-26 1981-09-29 Westinghouse Electric Corp. Electroacoustic delay line apparatus
US4827229A (en) * 1987-06-30 1989-05-02 Litton Systems, Inc. Broad band bulk acoustic wave spectrum analyzer/channelizer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON SONICS AND ULTRASONICS vol. 31, no. 2, Mars 1984, NEW YORK US pages 67 - 76 M.A.GOODBERLET ET AL. 'The Excitation and Detection of Surface-Generated Bulk Waves' *

Also Published As

Publication number Publication date
WO1993022832A1 (fr) 1993-11-11
FR2690994B1 (enrdf_load_stackoverflow) 1997-02-28

Similar Documents

Publication Publication Date Title
EP0285482B1 (fr) Transducteur acoustique multifréquences, notamment pour imagerie médicale
CA2121477C (fr) Filtre a ondes de surface et a trajet acoustique replie
EP2203976B1 (fr) Resonateur a ondes de lamb
CH623182A5 (enrdf_load_stackoverflow)
EP0002642B1 (fr) Système d'antenne à pouvoir séparateur élevé
FR2601824A1 (fr) Filtre d'onde elastique de surface
EP0084466B1 (fr) Système d'antenne à pouvoir séparateur élevé
EP0733408A1 (fr) Capteur à ultrasons et procédés de détection utilisant un tel capteur
EP0040559A1 (fr) Dispositif convoluteur piézoélectrique à ondes élastiques
FR2520171A1 (fr) Ligne a retard acoustique dispersive a ondes de surface
EP0106418B1 (fr) Appareil d'exploration de milieux par échographie ultrasonore
EP1191630A1 (fr) Lentille divergente à dôme pour ondes hyperfréquences et antenne comportant une telle lentille
EP0369835B1 (fr) Transducteur interdigité pour filtre à ondes de surface
FR2690994A1 (fr) Analyseur de spectre à ondes acoustiques de volume.
CA1266910A (fr) Sonar interferometrique a large bande et emission comprimee
EP1351333A2 (fr) Antenne adaptative et radar comportant une telle antenne
CA2280422C (fr) Filtre acoustique a deux canaux differents a compensation de rejection
EP0262170A1 (fr) Procede de supression des echos parasites dans les lignes a retard electroacoustiques a ondes de volume, et ligne a retard mettant en uvre ce procede
EP0014117B1 (fr) Transducteur d'ondes élastiques de surface et filtre comprenant un tel transducteur
US4146852A (en) Phase weighted acoustic reflective array compressor
FR2503517A1 (fr) Transducteur piezo-electrique
EP0136942B1 (fr) Résonateur auto-suspendu de haute surtension
WO1995014332A1 (fr) Filtre a ondes de surface a trajet acoustique replie
EP0572293B1 (fr) Dispositif de compression d'impulsions, notamment en émission hyperfréquence
EP0093058B1 (fr) Dispositif d'excitation d'une source de révolution rainurée hyperfréquence bi-bande

Legal Events

Date Code Title Description
ST Notification of lapse