FR2425099A1 - Appareil d'holographie ultrasonore de type numerique - Google Patents
Appareil d'holographie ultrasonore de type numeriqueInfo
- Publication number
- FR2425099A1 FR2425099A1 FR7818662A FR7818662A FR2425099A1 FR 2425099 A1 FR2425099 A1 FR 2425099A1 FR 7818662 A FR7818662 A FR 7818662A FR 7818662 A FR7818662 A FR 7818662A FR 2425099 A1 FR2425099 A1 FR 2425099A1
- Authority
- FR
- France
- Prior art keywords
- measured
- ultra
- pulses
- signal
- digital
- 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
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
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/0663—Imaging by acoustic holography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/10—Amplitude; Power
- G01H3/12—Amplitude; Power by electric means
- G01H3/125—Amplitude; Power by electric means for representing acoustic field distribution
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Radar, Positioning & Navigation (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Remote Sensing (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
APPAREIL D'HOLOGRAPHIE ULTRA-SONORE DE TYPE NUMERIQUE COMPRENANT UN GENERATEUR D'IMPULSIONS REGULIERES A FREQUENCE PREDETERMINEE, UN GENERATEUR DESTINE A ENVOYER UN FAISCEAU D'IMPULSIONS ULTRA-SONORES VERS UN OBJET A MESURER EN PHASE AVEC LESDITES IMPULSIONS REGULIERES, UN SYSTEME DESTINE A TRANSFORMER LES ONDES REFLECHIES DUDIT FAISCEAU D'IMPULSIONS ULTRA-SONORES PROVENANT DUDIT OBJET A MESURER EN IMPULSIONS NUMERIQUES, UN SYSTEME DESTINE A DETECTER LA COINCIDENCE DE TEMPS ENTRE LESDITES IMPULSIONS REGULIERES ET LESDITES IMPULSIONS NUMERIQUES CONTENUE DANS UNE PERIODE DE PORTE PREDETERMINEE ET PRODUISANT COMME SORTIE UN SIGNAL DE COINCIDENCE QUAND ELLES COINCIDENT L'UNE AVEC L'AUTRE, UN SYSTEME DESTINE A DEPLACER UN TRANSDUCTEUR ULTRA-SONORE DE PRODUCTION ET DE RECEPTION COMPRIS DANS LEDIT GENERATEUR DE FAISCEAU D'IMPULSIONS ULTRA-SONORES A UNE POSITION VOULUE, ET UN SYSTEME D'AFFICHAGE DE L'HOLOGRAMME DUDIT OBJET A MESURER UTILISANT LEDIT SIGNAL DE COINCIDENCE COMME SIGNAL LUMINEUX ET UN SIGNAL DE POSITION DUDIT TRANSDUCTEUR ULTRA-SONORE DE PRODUCTION ET DE RECEPTION COMME SIGNAL DE DEFLEXION DUDIT SIGNAL LUMINEUX CE QUI FAIT QUE L'HOLOGRAMME DUDIT OBJET A MESURER EST AFFICHE EN UN DESSIN FLOU ET LA POSITION AINSI QUE LA FORME DUDIT OBJET SONT MESUREES A PARTIR DE CES DONNEES.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52073206A JPS6049313B2 (ja) | 1977-06-22 | 1977-06-22 | デジタル方式超音波ホログラフィ装置 |
JP11561977A JPS5953555B2 (ja) | 1977-09-28 | 1977-09-28 | デジタル方式超音波ホログラフイ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2425099A1 true FR2425099A1 (fr) | 1979-11-30 |
FR2425099B1 FR2425099B1 (fr) | 1984-09-21 |
Family
ID=26414360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7818662A Granted FR2425099A1 (fr) | 1977-06-22 | 1978-06-22 | Appareil d'holographie ultrasonore de type numerique |
Country Status (5)
Country | Link |
---|---|
US (1) | US4222273A (fr) |
CA (1) | CA1103489A (fr) |
DE (1) | DE2827489C2 (fr) |
FR (1) | FR2425099A1 (fr) |
GB (1) | GB2000291B (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55120071A (en) * | 1979-03-12 | 1980-09-16 | Hitachi Ltd | Ultrasonic holography apparatus |
FR2465233B1 (fr) * | 1979-09-10 | 1985-11-08 | Plessey Overseas | Appareil de determination de gisement a radar ultrasonore |
JPS56102883A (en) * | 1980-01-21 | 1981-08-17 | Hitachi Ltd | Ultrasonic holography apparatus |
JPS5714725A (en) * | 1980-07-02 | 1982-01-26 | Hitachi Ltd | Digital phase detector |
US4476434A (en) * | 1982-01-25 | 1984-10-09 | The United States Of America As Represented By The United States Department Of Energy | Non-destructive testing method and apparatus utilizing phase multiplication holography |
US4531410A (en) * | 1982-05-10 | 1985-07-30 | Crostack Horst Artur | Method of and apparatus for detecting flaws inside articles, more particularly structural components, by means of acoustic holography |
DE3217530A1 (de) * | 1982-05-10 | 1984-02-23 | Gewertec Gmbh | Verfahren und vorrichtung zum erfassen von fehlern im inneren von koerpern, insbesondere bauteilen, mit hilfe der akustischen holographie |
US6702747B2 (en) * | 2000-06-08 | 2004-03-09 | Advanced Imaging Technologies, Ii Llc | Acoustically generated images having selected components |
US8438927B2 (en) * | 2003-08-12 | 2013-05-14 | Northwestern University | Scanning near field thermoelastic acoustic holography (SNFTAH) |
US7448269B2 (en) * | 2003-08-12 | 2008-11-11 | Northwestern University | Scanning near field ultrasound holography |
US7626692B2 (en) * | 2006-12-18 | 2009-12-01 | The Boeing Company | Automated imaging of part inconsistencies |
US10025272B2 (en) | 2013-01-25 | 2018-07-17 | General Electric Company | Ultrasonic holography imaging system and method |
US9639056B2 (en) * | 2013-09-17 | 2017-05-02 | General Electric Company | Acoustical holography with multi-level square wave excitation signals |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632183A (en) * | 1968-07-15 | 1972-01-04 | Holotron Corp | Holographic imaging by simultaneous source and receiver scanning |
US3712119A (en) * | 1970-01-30 | 1973-01-23 | Automation Ind Inc | Material tester |
US4021771A (en) * | 1975-07-07 | 1977-05-03 | Holosonics, Inc. | Scan acoustical holographic imaging apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2020566C3 (de) * | 1970-04-27 | 1978-10-26 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Erzeugung hochaufgelöster Sonarbilder |
US3678452A (en) * | 1970-04-30 | 1972-07-18 | Amoco Prod Co | Recording elastic-wave phase holographic data |
-
1978
- 1978-06-21 GB GB7827559A patent/GB2000291B/en not_active Expired
- 1978-06-21 US US05/917,600 patent/US4222273A/en not_active Expired - Lifetime
- 1978-06-22 DE DE2827489A patent/DE2827489C2/de not_active Expired
- 1978-06-22 FR FR7818662A patent/FR2425099A1/fr active Granted
- 1978-06-22 CA CA306,033A patent/CA1103489A/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632183A (en) * | 1968-07-15 | 1972-01-04 | Holotron Corp | Holographic imaging by simultaneous source and receiver scanning |
US3712119A (en) * | 1970-01-30 | 1973-01-23 | Automation Ind Inc | Material tester |
US4021771A (en) * | 1975-07-07 | 1977-05-03 | Holosonics, Inc. | Scan acoustical holographic imaging apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2425099B1 (fr) | 1984-09-21 |
US4222273A (en) | 1980-09-16 |
DE2827489C2 (de) | 1982-07-29 |
DE2827489A1 (de) | 1979-01-04 |
CA1103489A (fr) | 1981-06-23 |
GB2000291A (en) | 1979-01-04 |
GB2000291B (en) | 1982-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |