GB1395933A - Method and apparatus for attenuating side maxima in ultrasonic echo sounding processes - Google Patents

Method and apparatus for attenuating side maxima in ultrasonic echo sounding processes

Info

Publication number
GB1395933A
GB1395933A GB636073A GB636073A GB1395933A GB 1395933 A GB1395933 A GB 1395933A GB 636073 A GB636073 A GB 636073A GB 636073 A GB636073 A GB 636073A GB 1395933 A GB1395933 A GB 1395933A
Authority
GB
United Kingdom
Prior art keywords
pulse
phase
transducers
transmitted
output
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
Application number
GB636073A
Other languages
English (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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1395933A publication Critical patent/GB1395933A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GB636073A 1972-02-11 1973-02-08 Method and apparatus for attenuating side maxima in ultrasonic echo sounding processes Expired GB1395933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH203272A CH549220A (de) 1972-02-11 1972-02-11 Verfahren und vorrichtung zur verrringerung der seitenmaxima bei ultraschall-echolotverfahren.

Publications (1)

Publication Number Publication Date
GB1395933A true GB1395933A (en) 1975-05-29

Family

ID=4224325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB636073A Expired GB1395933A (en) 1972-02-11 1973-02-08 Method and apparatus for attenuating side maxima in ultrasonic echo sounding processes

Country Status (6)

Country Link
JP (1) JPS5336791B2 (enrdf_load_stackoverflow)
CH (1) CH549220A (enrdf_load_stackoverflow)
DD (1) DD103967A5 (enrdf_load_stackoverflow)
FR (1) FR2171346B1 (enrdf_load_stackoverflow)
GB (1) GB1395933A (enrdf_load_stackoverflow)
NL (1) NL158618B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585385B2 (ja) * 1976-03-12 1983-01-31 沖電気工業株式会社 受信ビ−ムフォ−マ
JPS53145878U (enrdf_load_stackoverflow) * 1977-04-21 1978-11-16
JPS576377A (en) * 1980-06-13 1982-01-13 Hitachi Ltd Multiplication array type ultrasonic wave searching device
JPS62159263U (enrdf_load_stackoverflow) * 1986-03-28 1987-10-09

Also Published As

Publication number Publication date
FR2171346A1 (enrdf_load_stackoverflow) 1973-09-21
JPS5336791B2 (enrdf_load_stackoverflow) 1978-10-04
FR2171346B1 (enrdf_load_stackoverflow) 1976-06-11
DE2306247A1 (de) 1973-08-16
CH549220A (de) 1974-05-15
NL7300811A (enrdf_load_stackoverflow) 1973-08-14
JPS4931346A (enrdf_load_stackoverflow) 1974-03-20
DE2306247B2 (de) 1975-11-20
NL158618B (nl) 1978-11-15
DD103967A5 (enrdf_load_stackoverflow) 1974-02-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee