DE2827489C2 - Digitales Ultraschall-Holografiegerät - Google Patents
Digitales Ultraschall-HolografiegerätInfo
- Publication number
- DE2827489C2 DE2827489C2 DE2827489A DE2827489A DE2827489C2 DE 2827489 C2 DE2827489 C2 DE 2827489C2 DE 2827489 A DE2827489 A DE 2827489A DE 2827489 A DE2827489 A DE 2827489A DE 2827489 C2 DE2827489 C2 DE 2827489C2
- Authority
- DE
- Germany
- Prior art keywords
- pulse
- signal
- clock
- signals
- ultrasonic
- 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
Links
- 238000001093 holography Methods 0.000 claims description 8
- 230000000737 periodic effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 26
- 238000007493 shaping process Methods 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 12
- 230000001360 synchronised effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 108010014172 Factor V Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (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)
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 |
|---|---|
| DE2827489A1 DE2827489A1 (de) | 1979-01-04 |
| DE2827489C2 true DE2827489C2 (de) | 1982-07-29 |
Family
ID=26414360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2827489A Expired DE2827489C2 (de) | 1977-06-22 | 1978-06-22 | Digitales Ultraschall-Holografiegerät |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4222273A (enExample) |
| CA (1) | CA1103489A (enExample) |
| DE (1) | DE2827489C2 (enExample) |
| FR (1) | FR2425099A1 (enExample) |
| GB (1) | GB2000291B (enExample) |
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 |
Family Cites Families (5)
| 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 |
| 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 |
| US4021771A (en) * | 1975-07-07 | 1977-05-03 | Holosonics, Inc. | Scan acoustical holographic imaging apparatus |
-
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 FR FR7818662A patent/FR2425099A1/fr active Granted
- 1978-06-22 DE DE2827489A patent/DE2827489C2/de not_active Expired
- 1978-06-22 CA CA306,033A patent/CA1103489A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2425099B1 (enExample) | 1984-09-21 |
| FR2425099A1 (fr) | 1979-11-30 |
| GB2000291B (en) | 1982-02-03 |
| CA1103489A (en) | 1981-06-23 |
| DE2827489A1 (de) | 1979-01-04 |
| US4222273A (en) | 1980-09-16 |
| GB2000291A (en) | 1979-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| D2 | Grant after examination | ||
| 8328 | Change in the person/name/address of the agent |
Free format text: STREHL, P., DIPL.-ING. DIPL.-WIRTSCH.-ING. SCHUEBEL-HOPF, U., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN |
|
| 8339 | Ceased/non-payment of the annual fee |