NO991555L - Todimensjonal gruppetransduser og -strÕleformer - Google Patents

Todimensjonal gruppetransduser og -strÕleformer

Info

Publication number
NO991555L
NO991555L NO991555A NO991555A NO991555L NO 991555 L NO991555 L NO 991555L NO 991555 A NO991555 A NO 991555A NO 991555 A NO991555 A NO 991555A NO 991555 L NO991555 L NO 991555L
Authority
NO
Norway
Prior art keywords
array
transducer
beam shapes
dimensional group
acoustic
Prior art date
Application number
NO991555A
Other languages
English (en)
Other versions
NO991555D0 (no
NO331521B1 (no
Inventor
Xiaolong Yu
Steven E Bradley
Francis D Rowe
Original Assignee
Rowe Deines Instr Inc
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 Rowe Deines Instr Inc filed Critical Rowe Deines Instr Inc
Publication of NO991555D0 publication Critical patent/NO991555D0/no
Publication of NO991555L publication Critical patent/NO991555L/no
Publication of NO331521B1 publication Critical patent/NO331521B1/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
    • B06B1/0629—Square array
    • 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
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
    • 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
    • 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
NO19991555A 1996-10-07 1999-03-30 Todimensjonal gruppetransduser og -straleformer NO331521B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/726,644 US5808967A (en) 1996-10-07 1996-10-07 Two-dimensional array transducer and beamformer
PCT/US1997/018061 WO1998015846A1 (en) 1996-10-07 1997-10-07 Two-dimensional array transducer and beamformer

Publications (3)

Publication Number Publication Date
NO991555D0 NO991555D0 (no) 1999-03-30
NO991555L true NO991555L (no) 1999-06-04
NO331521B1 NO331521B1 (no) 2012-01-16

Family

ID=24919434

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19991555A NO331521B1 (no) 1996-10-07 1999-03-30 Todimensjonal gruppetransduser og -straleformer

Country Status (7)

Country Link
US (1) US5808967A (no)
EP (1) EP0929825B1 (no)
JP (2) JP3995270B2 (no)
AT (1) ATE236409T1 (no)
DE (1) DE69720483T2 (no)
NO (1) NO331521B1 (no)
WO (1) WO1998015846A1 (no)

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Also Published As

Publication number Publication date
NO991555D0 (no) 1999-03-30
JP4087430B2 (ja) 2008-05-21
JP2007192830A (ja) 2007-08-02
JP3995270B2 (ja) 2007-10-24
EP0929825B1 (en) 2003-04-02
JP2001502058A (ja) 2001-02-13
NO331521B1 (no) 2012-01-16
ATE236409T1 (de) 2003-04-15
DE69720483T2 (de) 2003-12-24
US5808967A (en) 1998-09-15
WO1998015846A1 (en) 1998-04-16
DE69720483D1 (de) 2003-05-08
EP0929825A1 (en) 1999-07-21

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