JPS6227608U - - Google Patents

Info

Publication number
JPS6227608U
JPS6227608U JP1986113958U JP11395886U JPS6227608U JP S6227608 U JPS6227608 U JP S6227608U JP 1986113958 U JP1986113958 U JP 1986113958U JP 11395886 U JP11395886 U JP 11395886U JP S6227608 U JPS6227608 U JP S6227608U
Authority
JP
Japan
Prior art keywords
delay
phase
input
transducer
point
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
JP1986113958U
Other languages
English (en)
Other versions
JPH0127769Y2 (ja
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 filed Critical
Publication of JPS6227608U publication Critical patent/JPS6227608U/ja
Application granted granted Critical
Publication of JPH0127769Y2 publication Critical patent/JPH0127769Y2/ja
Expired legal-status Critical Current

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
    • 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
    • G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
    • G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
    • G01S15/8918—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being linear
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52046—Techniques for image enhancement involving transmitter or receiver
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52053—Display arrangements
    • G01S7/52057—Cathode ray tube displays
    • G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
    • G01S7/52063—Sector scan display
    • 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
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52023—Details of receivers
    • G01S7/52033—Gain control of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)

Description

【図面の簡単な説明】
第１図は従来技術による超音波システムを説明
した図、第２図は従来技術によるダイナミツク集
束を説明した図、第３図は本考案の一実施例を説
明したブロツク図、第４図は本考案の他実施例を
説明した図、第５Ａ図は従来技術によるトランス
デユーサ・チヤネルを示す図、第５Ｂ図は本考案
の一実施例によるトランスデユーサ・チヤネルを
示す図、第５Ｃ図及び第５Ｄ図は本考案の他実施
例によるトランスデユーサ・チヤネルを示す図、
第６図はアレイの中心線のまわりに対称的に配置
された８個のトランスデユーサを集束するのに必
要な理想的遅延を示すグラフ、第７Ａ図は本考案
の一実施例による音響映像装置を示す全体ブロツ
ク図（第一実施例）、第７Ｂ図は第７Ａ図に示さ
れた装置に音響遅延線を適用した場合の構成を示
すブロツク図（第２実施例）、第８図は中間周波
信号の位相を変化させる位相シフタを備えた音響
映像装置の一部を示すブロツク図（第３実施例）
、第９図は位相直交技術を用いた音響映像装置を
示すブロツク図（第４実施例）、第１０図は二重
変換方式を用いた音響映像装置を示すブロツク図
（第５実施例）、第１１図は２個のミキサ及び付
加遅延線を備えた二重変換方式による音響映像装
置を示すブロツク図である（第６実施例）。
補正 昭６１．８．２０ 実用新案登録請求の範囲を次のように補正する
。
【実用新案登録請求の範囲】 被試検物体に与えられた超音波パルスの反射よ
り映像を得る音響映像装置において、 入力する前記超音波パルスを電気信号に変換す
る複数のトランスデユーサから成るサレイと、 前記アレイ上の各トランスデユーサから前記電
気信号を受け取り前記電気信号の搬送波の位相を
変化させる複数の位相変化器と、 加算ポイントまでの相異なる遅延を与える複数
の入力端を持つ遅延器と、 前記位相変化器の夫々の出力を前記遅延器の適
切な入力端に接続することにより、当該入力端か
ら前記加算ポイントまでの遅延が、前記トランス
デユーサが所与の点に焦点を結ぶために必要な理
想遅延に最も近くなるようにする手段と、 前記位相変化器の位相変化量を変化させること
により、前記入力端から前記加算ポイントまでの
遅延と前記理想遅延との差を補償する位相制御手
段と を設けたことを特徴とする音響映像装置。

Claims (1)

  1. 【実用新案登録請求の範囲】 被試検物体に与えられた超音波パルスの反射よ
    り映像を得る音響映像装置において、 入力する前記超音波パルスを電気信号に変換す
    る複数のトランスデユーサから成るアレイと、 前記アレイ上の各トランスデユーサから前記電
    気信号を受け取る複数の位相変化器と、 加算ポイントまでの相異なる遅延を与える複数
    の入力端を持つ遅延器と、 前記位相変化器の夫々の出力を前記遅延器の適
    切な入力に接続することにより、当該入力端から
    前記加算ポイントまでの遅延が、前記トランスデ
    ユーサが所与の点に焦点を結ぶために必要な理想
    遅延に最も近くなるようにする手段と、 前記位相変化器の位相変化量を変化させること
    により、前記入力端から前記加算ポイントまでの
    遅延と前記理想遅延との差を補償する位想制御手
    段と、 を設けたことを特徴とする音響映像装置。
JP1986113958U 1977-12-20 1986-07-24 Expired JPH0127769Y2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05862454 US4140022B1 (en) 1977-12-20 1977-12-20 Acoustic imaging apparatus

Publications (2)

Publication Number Publication Date
JPS6227608U true JPS6227608U (ja) 1987-02-19
JPH0127769Y2 JPH0127769Y2 (ja) 1989-08-23

Family

ID=25338521

Family Applications (2)

Application Number Title Priority Date Filing Date
JP53159817A Expired JPS5816892B2 (ja) 1977-12-20 1978-12-20 音響映像装置
JP1986113958U Expired JPH0127769Y2 (ja) 1977-12-20 1986-07-24

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP53159817A Expired JPS5816892B2 (ja) 1977-12-20 1978-12-20 音響映像装置

Country Status (5)

Country Link
US (1) US4140022B1 (ja)
JP (2) JPS5816892B2 (ja)
DE (1) DE2854134C2 (ja)
FR (1) FR2412854A1 (ja)
GB (2) GB2097924B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241481A (ja) * 1987-03-30 1988-10-06 Yokogawa Medical Syst Ltd ソナ−システムのヘテロダイン受信機

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Also Published As

Publication number Publication date
JPS5496286A (en) 1979-07-30
JPS5816892B2 (ja) 1983-04-02
US4140022A (en) 1979-02-20
GB2097924A (en) 1982-11-10
DE2854134C2 (de) 1988-12-22
US4140022B1 (en) 1995-05-16
JPH0127769Y2 (ja) 1989-08-23
FR2412854B1 (ja) 1984-06-29
DE2854134A1 (de) 1979-06-21
GB2010482A (en) 1979-06-27
FR2412854A1 (fr) 1979-07-20
GB2097924B (en) 1983-06-08
GB2010482B (en) 1983-04-27

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