DK138863B - Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder. - Google Patents

Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder.

Info

Publication number
DK138863B
DK138863B DK637073AA DK637073A DK138863B DK 138863 B DK138863 B DK 138863B DK 637073A A DK637073A A DK 637073AA DK 637073 A DK637073 A DK 637073A DK 138863 B DK138863 B DK 138863B
Authority
DK
Denmark
Prior art keywords
reducing side
ultrasonic sonar
echoes
sonar methods
side echoes
Prior art date
Application number
DK637073AA
Other languages
Danish (da)
English (en)
Other versions
DK138863C (US07655746-20100202-C00011.png
Inventor
Christoph Benedikt Burckhardt
Pierre-Andre Grandchamp
Heinz Hoffmann
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of DK138863B publication Critical patent/DK138863B/da
Application granted granted Critical
Publication of DK138863C publication Critical patent/DK138863C/da

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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DK637073AA 1972-11-27 1973-11-26 Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder. DK138863B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1722272A CH558944A (de) 1972-11-27 1972-11-27 Verfahren und vorrichtung zur verringerung der seitenmaxima bei ultraschall-echolotverfahren.

Publications (2)

Publication Number Publication Date
DK138863B true DK138863B (da) 1978-11-06
DK138863C DK138863C (US07655746-20100202-C00011.png) 1979-04-17

Family

ID=4423717

Family Applications (1)

Application Number Title Priority Date Filing Date
DK637073AA DK138863B (da) 1972-11-27 1973-11-26 Fremgangsmåde og apparat til formindskelse af side-ekkoer ved ultralyd-ekkolodfremgangsmåder.

Country Status (9)

Country Link
JP (1) JPS537815B2 (US07655746-20100202-C00011.png)
CA (1) CA998161A (US07655746-20100202-C00011.png)
CH (1) CH558944A (US07655746-20100202-C00011.png)
DD (1) DD109267A5 (US07655746-20100202-C00011.png)
DE (1) DE2351352C3 (US07655746-20100202-C00011.png)
DK (1) DK138863B (US07655746-20100202-C00011.png)
FR (1) FR2208122B1 (US07655746-20100202-C00011.png)
GB (1) GB1413740A (US07655746-20100202-C00011.png)
NL (1) NL161585C (US07655746-20100202-C00011.png)

Also Published As

Publication number Publication date
NL161585C (nl) 1980-02-15
DE2351352B2 (de) 1978-04-13
DD109267A5 (US07655746-20100202-C00011.png) 1974-10-20
FR2208122A1 (US07655746-20100202-C00011.png) 1974-06-21
CA998161A (en) 1976-10-05
DE2351352A1 (de) 1974-05-30
NL161585B (nl) 1979-09-17
JPS537815B2 (US07655746-20100202-C00011.png) 1978-03-22
GB1413740A (en) 1975-11-12
FR2208122B1 (US07655746-20100202-C00011.png) 1978-03-10
NL7316000A (US07655746-20100202-C00011.png) 1974-05-29
CH558944A (de) 1975-02-14
DE2351352C3 (de) 1978-12-07
JPS501767A (US07655746-20100202-C00011.png) 1975-01-09
DK138863C (US07655746-20100202-C00011.png) 1979-04-17

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Legal Events

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PBP Patent lapsed