GB1491527A - Device for examination by means of ultrasonic vibrations - Google Patents

Device for examination by means of ultrasonic vibrations

Info

Publication number
GB1491527A
GB1491527A GB654375A GB654375A GB1491527A GB 1491527 A GB1491527 A GB 1491527A GB 654375 A GB654375 A GB 654375A GB 654375 A GB654375 A GB 654375A GB 1491527 A GB1491527 A GB 1491527A
Authority
GB
United Kingdom
Prior art keywords
transducers
transmit
receive
transducer
line
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
GB654375A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1491527A publication Critical patent/GB1491527A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means
    • G01H3/125—Amplitude; Power by electric means for representing acoustic field distribution
    • 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
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • 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
    • G01S15/8929—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a three-dimensional transducer configuration

Abstract

1491527 Ultrasonic inspection PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd 17 Feb 1975 [20 Feb 1974] 6543/73 Heading G1G A device for the ultrasonic examination of a cross-sectional plane P through an object comprises a line of transmit transducers each having a transmission direction in the plane P, and a plurality of pairs of receive transducers with the receive directions of the two transducers of a pair being situated in a plane P<SP>1</SP> which is perpendicular to both the line of transmit transducers and to the plane P. The transmit transducers are pulsed in turn and, following each transmission pulse, selected receiver pairs are operative in sequence to supply echo pulses to a unit which displays an image of the examined cross-section. In the Fig. 2 embodiment a flat mosaic of transmit transducers el - - - em and receive transducers r1A(1) - rrB(m) is used. In any column of the mosaic the two receive transducers equidistant from the line of transmit transducers form a pair (e.g. r2A(1) and r2B(1)) and are connected to a common terminal (t11 --- trm). Unit B provides pulses ae for controlling at DA the selection of transducers el - - - em in turn. The selected transducer is pulsed r times by generator G. The pulse interval is sufficient to allow spurious multiple echoes to die away. After each transmission pulse, multi-plexers MA1 --- MAm controlled by "row address" pulses al sample the echo signals and a unit DU passes the samples from a selected group of columns of receive transducers to the beam intensity control W of a CRT. The group typically comprises fifteen columns, extending to the seventh column either side of the active transmit transducer. The CRT X-scan and Y-scan are synchronized with the transmit transducer selection and pulsing and with the sampling of the echo signals. In a modification Fig. 3 (not shown) the multi-plexers are omitted, each column of receive transducers being used as a phased array with the signals from its transducer pairs being brought into phase and summed for application to unit DU. The line of transmit transducers need not be coplanar with the receive transducers.
GB654375A 1974-02-20 1975-02-17 Device for examination by means of ultrasonic vibrations Expired GB1491527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7405718A FR2279101A1 (en) 1974-02-20 1974-02-20 ULTRASONIC ANALYSIS SYSTEM

Publications (1)

Publication Number Publication Date
GB1491527A true GB1491527A (en) 1977-11-09

Family

ID=9135172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB654375A Expired GB1491527A (en) 1974-02-20 1975-02-17 Device for examination by means of ultrasonic vibrations

Country Status (11)

Country Link
JP (1) JPS5722578B2 (en)
AU (1) AU500791B2 (en)
BE (1) BE825677A (en)
CA (1) CA1051544A (en)
DE (1) DE2506506C3 (en)
ES (1) ES434822A1 (en)
FR (1) FR2279101A1 (en)
GB (1) GB1491527A (en)
IT (1) IT1030159B (en)
NL (1) NL169922C (en)
SE (1) SE415400B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55118740A (en) * 1979-03-07 1980-09-11 Tokyo Shibaura Electric Co Ultrasoniccwave diagnosis device
JPS5618854A (en) * 1979-07-25 1981-02-23 Fujitsu Ltd Ultrasonic diagnosing device
US11017833B2 (en) * 2018-05-24 2021-05-25 Micron Technology, Inc. Apparatuses and methods for pure-time, self adopt sampling for row hammer refresh sampling
US10685696B2 (en) 2018-10-31 2020-06-16 Micron Technology, Inc. Apparatuses and methods for access based refresh timing
CN113168861A (en) 2018-12-03 2021-07-23 美光科技公司 Semiconductor device for performing row hammer refresh operation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090030A (en) * 1957-09-09 1963-05-14 Honeywell Regulator Co Variable focus transducer
GB941573A (en) * 1959-11-06 1963-11-13 Kelvin & Hughes Ltd Improvements in flaw detection and like systems using pulsed sonic or ultrasonic waves
NL154011B (en) * 1967-04-15 1977-07-15 Philips Nv LISTENING SYSTEM.
GB1199425A (en) * 1967-11-29 1970-07-22 Ti Group Services Ltd Control of Ultrasonic Energy.
US3513439A (en) * 1968-12-23 1970-05-19 Parke Davis & Co Ultrasonic beam transducer
DE1948463A1 (en) * 1969-09-25 1971-04-01 Siemens Ag Device for examining bodies by scanning with ultrasound
NL169956C (en) * 1971-03-31 1982-09-16 Univ Erasmus DEVICE FOR DIAGNOSTIC EXAMINATION WITH ULTRA-SOUND BUNDLES.
JPS5224356B2 (en) * 1971-09-30 1977-06-30
US3847016A (en) * 1971-12-08 1974-11-12 Hoffmann La Roche Ultrasonic transducer assembly

Also Published As

Publication number Publication date
SE7501693L (en) 1975-08-21
SE415400B (en) 1980-09-29
IT1030159B (en) 1979-03-30
NL169922B (en) 1982-04-01
FR2279101A1 (en) 1976-02-13
JPS5722578B2 (en) 1982-05-13
ES434822A1 (en) 1976-11-16
DE2506506C3 (en) 1981-11-26
CA1051544A (en) 1979-03-27
FR2279101B1 (en) 1976-11-26
NL7501812A (en) 1975-08-22
JPS50124487A (en) 1975-09-30
NL169922C (en) 1982-09-01
BE825677A (en) 1975-08-18
AU500791B2 (en) 1979-05-31
DE2506506A1 (en) 1977-08-11
DE2506506B2 (en) 1981-02-26
AU7835475A (en) 1976-08-19

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Legal Events

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