GB1413740A - Method of reducing the amplitude of spurious echoes in ultrasonic echo sounding - Google Patents

Method of reducing the amplitude of spurious echoes in ultrasonic echo sounding

Info

Publication number
GB1413740A
GB1413740A GB5367173A GB5367173A GB1413740A GB 1413740 A GB1413740 A GB 1413740A GB 5367173 A GB5367173 A GB 5367173A GB 5367173 A GB5367173 A GB 5367173A GB 1413740 A GB1413740 A GB 1413740A
Authority
GB
United Kingdom
Prior art keywords
echoes
sectors
pulse
transmitted
switches
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
GB5367173A
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 GB1413740A publication Critical patent/GB1413740A/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
    • 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)
GB5367173A 1972-11-27 1973-11-19 Method of reducing the amplitude of spurious echoes in ultrasonic echo sounding Expired GB1413740A (en)

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 (1)

Publication Number Publication Date
GB1413740A true GB1413740A (en) 1975-11-12

Family

ID=4423717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5367173A Expired GB1413740A (en) 1972-11-27 1973-11-19 Method of reducing the amplitude of spurious echoes in ultrasonic echo sounding

Country Status (9)

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

Also Published As

Publication number Publication date
DE2351352A1 (de) 1974-05-30
DD109267A5 (enrdf_load_html_response) 1974-10-20
CH558944A (de) 1975-02-14
DK138863C (enrdf_load_html_response) 1979-04-17
FR2208122B1 (enrdf_load_html_response) 1978-03-10
NL161585B (nl) 1979-09-17
DK138863B (da) 1978-11-06
DE2351352C3 (de) 1978-12-07
DE2351352B2 (de) 1978-04-13
CA998161A (en) 1976-10-05
JPS537815B2 (enrdf_load_html_response) 1978-03-22
NL7316000A (enrdf_load_html_response) 1974-05-29
JPS501767A (enrdf_load_html_response) 1975-01-09
NL161585C (nl) 1980-02-15
FR2208122A1 (enrdf_load_html_response) 1974-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee