NL161585C - METHOD FOR REDUCING THE SIDE MAXIMA IN THE ULTRASONIC ECHOLOOD METHOD AND APPARATUS FOR CARRYING OUT THIS METHOD - Google Patents

METHOD FOR REDUCING THE SIDE MAXIMA IN THE ULTRASONIC ECHOLOOD METHOD AND APPARATUS FOR CARRYING OUT THIS METHOD

Info

Publication number
NL161585C
NL161585C NL7316000.A NL7316000A NL161585C NL 161585 C NL161585 C NL 161585C NL 7316000 A NL7316000 A NL 7316000A NL 161585 C NL161585 C NL 161585C
Authority
NL
Netherlands
Prior art keywords
echolood
ultrasonic
reducing
carrying
side maxima
Prior art date
Application number
NL7316000.A
Other languages
Dutch (nl)
Other versions
NL161585B (en
NL7316000A (en
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 NL7316000A publication Critical patent/NL7316000A/xx
Publication of NL161585B publication Critical patent/NL161585B/en
Application granted granted Critical
Publication of NL161585C publication Critical patent/NL161585C/en

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)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (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)
NL7316000.A 1972-11-27 1973-11-22 METHOD FOR REDUCING THE SIDE MAXIMA IN THE ULTRASONIC ECHOLOOD METHOD AND APPARATUS FOR CARRYING OUT THIS METHOD NL161585C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1722272A CH558944A (en) 1972-11-27 1972-11-27 METHOD AND DEVICE FOR REDUCING THE SIDE MAXIMUM IN ULTRASONIC SOUNDING METHOD.

Publications (3)

Publication Number Publication Date
NL7316000A NL7316000A (en) 1974-05-29
NL161585B NL161585B (en) 1979-09-17
NL161585C true NL161585C (en) 1980-02-15

Family

ID=4423717

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7316000.A NL161585C (en) 1972-11-27 1973-11-22 METHOD FOR REDUCING THE SIDE MAXIMA IN THE ULTRASONIC ECHOLOOD METHOD AND APPARATUS FOR CARRYING OUT THIS METHOD

Country Status (9)

Country Link
JP (1) JPS537815B2 (en)
CA (1) CA998161A (en)
CH (1) CH558944A (en)
DD (1) DD109267A5 (en)
DE (1) DE2351352C3 (en)
DK (1) DK138863B (en)
FR (1) FR2208122B1 (en)
GB (1) GB1413740A (en)
NL (1) NL161585C (en)

Also Published As

Publication number Publication date
JPS501767A (en) 1975-01-09
DK138863B (en) 1978-11-06
FR2208122B1 (en) 1978-03-10
DK138863C (en) 1979-04-17
DE2351352C3 (en) 1978-12-07
CA998161A (en) 1976-10-05
FR2208122A1 (en) 1974-06-21
NL161585B (en) 1979-09-17
CH558944A (en) 1975-02-14
NL7316000A (en) 1974-05-29
JPS537815B2 (en) 1978-03-22
DE2351352A1 (en) 1974-05-30
DE2351352B2 (en) 1978-04-13
DD109267A5 (en) 1974-10-20
GB1413740A (en) 1975-11-12

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: HOFFMANN