GB9104911D0 - Reflection type of acoustic microscope with acoustic lens having concave transducer - Google Patents

Reflection type of acoustic microscope with acoustic lens having concave transducer

Info

Publication number
GB9104911D0
GB9104911D0 GB919104911A GB9104911A GB9104911D0 GB 9104911 D0 GB9104911 D0 GB 9104911D0 GB 919104911 A GB919104911 A GB 919104911A GB 9104911 A GB9104911 A GB 9104911A GB 9104911 D0 GB9104911 D0 GB 9104911D0
Authority
GB
United Kingdom
Prior art keywords
acoustic
reflection type
microscope
concave transducer
lens
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.)
Withdrawn
Application number
GB919104911A
Other versions
GB2242270A (en
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.)
Tsinghua University
Original Assignee
Tsinghua University
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 Tsinghua University filed Critical Tsinghua University
Publication of GB9104911D0 publication Critical patent/GB9104911D0/en
Publication of GB2242270A publication Critical patent/GB2242270A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/30—Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses
    • 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
    • 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
    • G01N29/0609—Display arrangements, e.g. colour displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • 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
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
GB9104911A 1990-03-08 1991-03-08 Acoustic microscope with concave transducer Withdrawn GB2242270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90101053 CN1019919C (en) 1990-03-08 1990-03-08 Reflecting sound microscope with acoustic mirror

Publications (2)

Publication Number Publication Date
GB9104911D0 true GB9104911D0 (en) 1991-04-24
GB2242270A GB2242270A (en) 1991-09-25

Family

ID=4876921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9104911A Withdrawn GB2242270A (en) 1990-03-08 1991-03-08 Acoustic microscope with concave transducer

Country Status (2)

Country Link
CN (1) CN1019919C (en)
GB (1) GB2242270A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363306B (en) 2000-05-05 2002-11-13 Acoustical Tech Sg Pte Ltd Acoustic microscope
EP2106531A2 (en) 2007-01-22 2009-10-07 California Institute Of Technology Method for quantitative 3-d imaging
US20080278572A1 (en) 2007-04-23 2008-11-13 Morteza Gharib Aperture system with spatially-biased aperture shapes and positions (SBPSP) for static and dynamic 3-D defocusing-based imaging
US8089635B2 (en) 2007-01-22 2012-01-03 California Institute Of Technology Method and system for fast three-dimensional imaging using defocusing and feature recognition
WO2008135922A1 (en) * 2007-05-03 2008-11-13 Koninklijke Philips Electronics N.V. Methods and apparatuses of microbeamforming with adjustable fluid lenses
WO2010027391A2 (en) 2008-08-27 2010-03-11 California Institute Of Technology Method and device for high-resolution three-dimensional imaging which obtains camera pose using defocusing
US8773507B2 (en) 2009-08-11 2014-07-08 California Institute Of Technology Defocusing feature matching system to measure camera pose with interchangeable lens cameras
US8773514B2 (en) 2009-08-27 2014-07-08 California Institute Of Technology Accurate 3D object reconstruction using a handheld device with a projected light pattern
US10182223B2 (en) 2010-09-03 2019-01-15 California Institute Of Technology Three-dimensional imaging system
JP6235127B2 (en) 2013-08-13 2017-11-22 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Smoking articles containing blind flammable heat sources
CN104122333B (en) * 2014-04-12 2017-04-05 北京工业大学 Array analytic expression focusing ultrasonic wave transducer
WO2017132165A1 (en) 2016-01-25 2017-08-03 California Institute Of Technology Non-invasive measurement of intraocular pressure
CN109374739B (en) * 2018-09-05 2021-07-27 广州联声电子科技有限公司 Ultrasonic microscope and method based on annular area array
CN109374738B (en) * 2018-09-05 2021-07-27 广州联声电子科技有限公司 Ultrasonic microscope and method based on annular array

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56103327A (en) * 1980-01-21 1981-08-18 Hitachi Ltd Ultrasonic image pickup apparatus
JPS60146152A (en) * 1984-01-11 1985-08-01 Hitachi Ltd Ultrasonic microscope
DE3574621D1 (en) * 1984-07-08 1990-01-11 Noriyoshi Chubachi SURFACE ULTRASONIC INTERFERENCE MICROSCOPE.
US4659956A (en) * 1985-01-24 1987-04-21 General Electric Company Compound focus ultrasonic transducer
JP2730756B2 (en) * 1988-04-13 1998-03-25 日立建機株式会社 Ultrasonic probe and manufacturing method thereof

Also Published As

Publication number Publication date
CN1019919C (en) 1993-02-17
GB2242270A (en) 1991-09-25
CN1054667A (en) 1991-09-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)