GB1522693A – Waveguides for elastic waves
– Google Patents
GB1522693A – Waveguides for elastic waves
– Google Patents
Waveguides for elastic waves
Info
Publication number
GB1522693A
GB1522693A
GB32705/75A
GB3270575A
GB1522693A
GB 1522693 A
GB1522693 A
GB 1522693A
GB 32705/75 A
GB32705/75 A
GB 32705/75A
GB 3270575 A
GB3270575 A
GB 3270575A
GB 1522693 A
GB1522693 A
GB 1522693A
Authority
GB
United Kingdom
Prior art keywords
waves
radial
waveguide
disc
core
Prior art date
1974-08-12
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
GB32705/75A
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.)
AT&T Corp
Original Assignee
Western Electric Co 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.)
1974-08-12
Filing date
1975-08-05
Publication date
1978-08-23
1975-08-05
Application filed by Western Electric Co Inc
filed
Critical
Western Electric Co Inc
1978-08-23
Publication of GB1522693A
publication
Critical
patent/GB1522693A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
G10K11/24—Methods or devices for transmitting, conducting or directing sound for conducting sound through solid bodies, e.g. wires
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
H03H9/30—Time-delay networks
H03H9/36—Time-delay networks with non-adjustable delay time
Abstract
1522693 Acoustic waveguides WESTERN ELECTRIC CO Inc 5 Aug 1975 [12 Aug 1974] 32705/75 Heading H3U A waveguide for elastic waves comprises a core 12, which may be solid or liquid, surrounded by a cladding member 13 of circular cross-section which has a higher wave velocity and is of a thickness such that the particle displacement decreases to substantially zero within member 13. Torsional, radial or longitudinal waves may be employed. The waveguide may be mounted in a cushioning medium 18. The core and cladding may be separated by wedge-shaped members 31, Fig. 11, with the intervening space being evacuated. The core and cladding may be of the same material, e.g. silica, with doping being used to provide the desired velocity difference; the doping may vary gradually with radial distance. The waveguide may have enlarged ends (Fig. 8 not shown) and may be coiled (Fig. 10 not shown). The transducers 19, 20 may be of lead zirconate titanate. To generate radial waves a radially polarised disc Fig. 5, (not shown) has driving electrodes on its main surfaces; alternatively an orthogonally polarised disc may be radially driven. A circularly polarised disc, Fig. 7 (not shown) with driving electrodes on its main surfaces may be used to generate torsional waves. A square X-cut lithium niobate plate 36 with oppositely disposed sectored electrode pairs 37-40 may be used to generate either radial or torsional waves depending on the orientation of the crystallographic axes with respect to the electrodes.
GB32705/75A
1974-08-12
1975-08-05
Waveguides for elastic waves
Expired
GB1522693A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US496645A
US3922622A
(en)
1974-08-12
1974-08-12
Elastic waveguide utilizing an enclosed core member
Publications (1)
Publication Number
Publication Date
GB1522693A
true
GB1522693A
(en)
1978-08-23
Family
ID=23973544
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB32705/75A
Expired
GB1522693A
(en)
1974-08-12
1975-08-05
Waveguides for elastic waves
Country Status (9)
Country
Link
US
(1)
US3922622A
(en)
JP
(1)
JPS5142448A
(en)
BE
(1)
BE832211A
(en)
DE
(1)
DE2535928A1
(en)
FR
(1)
FR2282139A1
(en)
GB
(1)
GB1522693A
(en)
IT
(1)
IT1041554B
(en)
NL
(1)
NL7509544A
(en)
SE
(1)
SE7508774L
(en)
Families Citing this family (22)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4077023A
(en)
*
1976-11-26
1978-02-28
Bell Telephone Laboratories, Incorporated
Elastic waveguide
JPS54162280A
(en)
*
1978-06-13
1979-12-22
Nippon Denshi Kogyo Kk
Transmission cable of ultrasoniccwave device
US4328472A
(en)
*
1980-11-03
1982-05-04
United Technologies Corporation
Acoustic guided wave devices
US4510812A
(en)
*
1982-12-20
1985-04-16
Dunegan Corporation
Apparatus for acoustic emission detection including a waveguide made of aluminum or beryllium oxide
US4550325A
(en)
*
1984-12-26
1985-10-29
Polaroid Corporation
Drop dispensing device
DK399485D0
(en)
*
1985-09-02
1985-09-02
Herbert Renald Christian Drue
METHOD OF EXAMPLING ULTROID AND ULTROYD LEADERS FOR USE IN EXERCISING THE PROCEDURE
CA1257793A
(en)
*
1985-10-03
1989-07-25
Cheng Kuei-Jen
Longitudinal mode fiber acoustic waveguide with solid core and solid cladding
CA1253247A
(en)
*
1986-04-03
1989-04-25
Gerald W. Farnell
Ultrasonic image camera using arrays of acoustic waveguides
SE465946B
(en)
*
1986-09-11
1991-11-18
Bengt Henoch
DEVICE FOR TRANSFER OF ELECTRICAL ENERGY TO ELECTRICAL EQUIPMENT THROUGH OMAGNETIC AND ELECTRICALLY INSULATING MATERIALS
CA1288701C
(en)
*
1986-11-18
1991-09-10
Cheng-Kuei Jen
Birefringent single-mode acoustic fiber
US5037181A
(en)
*
1988-04-25
1991-08-06
The Board Of Trustees Of The Leland Stanford Junior University
Claddings for single crystal optical fibers and devices and methods and apparatus for making such claddings
US5077087A
(en)
*
1988-04-25
1991-12-31
The Board Of Trustees Of The Leland Stanford Junior Univ.
Method of cladding single crystal optical fiber
US5400788A
(en)
*
1989-05-16
1995-03-28
Hewlett-Packard
Apparatus that generates acoustic signals at discrete multiple frequencies and that couples acoustic signals into a cladded-core acoustic waveguide
US5241287A
(en)
*
1991-12-02
1993-08-31
National Research Council Of Canada
Acoustic waveguides having a varying velocity distribution with reduced trailing echoes
US5488955A
(en)
*
1992-07-22
1996-02-06
Hewlett Packard Company
Magnetostriction transducer and an intraoperative probe for acoustic imaging
US5828274A
(en)
*
1996-05-28
1998-10-27
National Research Council Of Canada
Clad ultrasonic waveguides with reduced trailing echoes
US6476541B1
(en)
*
2001-02-23
2002-11-05
General Electric Company
Optically controlled ultrasonic sensor
JP2003116869A
(en)
*
2001-10-18
2003-04-22
Honda Seiki Kk
Ultrasonic curing apparatus and ultrasonic diagnostic apparatus
US9053737B2
(en)
*
2010-12-22
2015-06-09
Seagate Technology Llc
Heat assisted magnetic recording devices
EP3450678B1
(en)
2013-01-16
2020-01-15
Saudi Arabian Oil Company
Method and apparatus for in-well wireless control using infrasound sources
GB201507537D0
(en)
*
2015-05-01
2015-06-17
Univ Bath
Composite elastic wave waveguide
US10600402B2
(en)
2017-05-18
2020-03-24
Elwha Llc
Systems and methods for acoustic mode conversion
Family Cites Families (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2702885A
(en)
*
1946-04-17
1955-02-22
Shapiro Herbert
Supersonic delay line
US2727214A
(en)
*
1949-11-02
1955-12-13
Bell Telephone Labor Inc
Acoustic delay line using solid rods
US3098204A
(en)
*
1961-04-24
1963-07-16
Joseph B Brauer
Microwave delay line and method of fabrication
US3259858A
(en)
*
1962-04-27
1966-07-05
Bell Telephone Labor Inc
Nondispersive ultrasonic delay line using delay medium consisting of cubic symmetry crystal having particular orientation
US3231836A
(en)
*
1963-09-04
1966-01-25
Bell Telephone Labor Inc
Delay lines with gas lubricated bearings
US3327252A
(en)
*
1963-10-28
1967-06-20
Friden Inc
Vibratory delay line having novel support
US3406358A
(en)
*
1967-10-30
1968-10-15
Bell Telephone Labor Inc
Ultrasonic surface waveguides
NL6803692A
(en)
*
1968-03-15
1968-05-27
US3659915A
(en)
*
1970-05-11
1972-05-02
Corning Glass Works
Fused silica optical waveguide
DE2121213A1
(en)
*
1971-04-19
1973-03-22
Licentia Gmbh
ELECTROMECHANICAL DELAY CABLE
US3753157A
(en)
*
1971-06-30
1973-08-14
Ibm
Leaky wave couplers for guided elastic wave and guided optical wave devices
US3736532A
(en)
*
1971-07-14
1973-05-29
Us Navy
Ultrasonic delay lines
FR2152464B1
(en)
*
1971-09-16
1974-05-31
Thomson Csf
US3719907A
(en)
*
1971-12-03
1973-03-06
Zenith Radio Corp
Torsional wave transducer
US3778132A
(en)
*
1972-10-06
1973-12-11
Bell Telephone Labor Inc
Optical transmission line
1974
1974-08-12
US
US496645A
patent/US3922622A/en
not_active
Expired – Lifetime
1975
1975-08-04
SE
SE7508774A
patent/SE7508774L/en
unknown
1975-08-05
GB
GB32705/75A
patent/GB1522693A/en
not_active
Expired
1975-08-07
BE
BE159012A
patent/BE832211A/en
unknown
1975-08-11
IT
IT69069/75A
patent/IT1041554B/en
active
1975-08-11
FR
FR7524960A
patent/FR2282139A1/en
not_active
Withdrawn
1975-08-11
NL
NL7509544A
patent/NL7509544A/en
not_active
Application Discontinuation
1975-08-12
JP
JP50097239A
patent/JPS5142448A/ja
active
Pending
1975-08-12
DE
DE19752535928
patent/DE2535928A1/en
active
Pending
Also Published As
Publication number
Publication date
BE832211A
(en)
1975-12-01
SE7508774L
(en)
1976-02-13
NL7509544A
(en)
1976-02-16
DE2535928A1
(en)
1976-02-26
JPS5142448A
(en)
1976-04-10
IT1041554B
(en)
1980-01-10
US3922622A
(en)
1975-11-25
FR2282139A1
(en)
1976-03-12
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Legal Events
Date
Code
Title
Description
1979-05-02
CSNS
Application of which complete specification have been accepted and published, but patent is not sealed
