GB1104676A - Acoustic coupling - Google Patents

Acoustic coupling

Info

Publication number
GB1104676A
GB1104676A GB28221/65A GB2822165A GB1104676A GB 1104676 A GB1104676 A GB 1104676A GB 28221/65 A GB28221/65 A GB 28221/65A GB 2822165 A GB2822165 A GB 2822165A GB 1104676 A GB1104676 A GB 1104676A
Authority
GB
United Kingdom
Prior art keywords
foils
plates
transducer
stack
sound
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
GB28221/65A
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.)
Realisations Ultrasoniques SA
Original Assignee
Realisations Ultrasoniques SA
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 Realisations Ultrasoniques SA filed Critical Realisations Ultrasoniques SA
Publication of GB1104676A publication Critical patent/GB1104676A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • 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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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

1,104,676. Acoustic relays; ultrasonic couplings. REALISATIONS ULTRASONIQUES. 2 July, 1965 [2 July, 1964], No. 28221/65. Headings- H3U and H4J. In order to avoid " wall-effect " echoes in a sound wave transmission system into which the sound waves are induced, e.g. by a piezo-electric transducer, the transmission system is formed by a multi-layer stack of thin plates or foils arranged so that the planes of the plates or foils are parallel to the direction of propagation of the waves, i.e. the transducer is in contact with the edges of the plates or-foils at one side of the stack, the thickness of each plate or foil being less than the wavelength of the sound. As shown in Fig. 10 a transducer 10 is connected to one side of a stack of foils 5 bent through 90 degrees, the foils being stuck together at their ends 6, 7 and assembled between plates 8, 9 to obtain rigidity. In a modification (Fig. 11, not shown) the foils (11) comprise a wedgeshaped assembly acting as an energy concentrator. In another modification (Figs. 12, 13, not shown) the foils (15) form an acoustic-prism.
GB28221/65A 1964-07-02 1965-07-02 Acoustic coupling Expired GB1104676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR980446A FR1411069A (en) 1964-07-02 1964-07-02 Structure allowing the propagation of elastic impulses without cliff echoes

Publications (1)

Publication Number Publication Date
GB1104676A true GB1104676A (en) 1968-02-28

Family

ID=8833743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28221/65A Expired GB1104676A (en) 1964-07-02 1965-07-02 Acoustic coupling

Country Status (3)

Country Link
US (1) US3352376A (en)
FR (1) FR1411069A (en)
GB (1) GB1104676A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138894A (en) * 1974-12-16 1979-02-13 L'electronique Appliquee Transversal acoustic wave operating device
US3973152A (en) * 1975-04-03 1976-08-03 The United States Of America As Represented By The United States Energy Research And Development Administration Ultrasonic transducer with laminated coupling wedge
JPS54162280A (en) * 1978-06-13 1979-12-22 Nippon Denshi Kogyo Kk Transmission cable of ultrasoniccwave device
DE10021187C1 (en) * 1999-11-03 2001-05-31 Krohne Ag Ultrasonic waveguide e.g. for flowmeter comprises rolled film of defined layer thickness to suppress dispersion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1583067A (en) * 1923-03-26 1926-05-04 Western Electric Co Vibration-responsive device
US1788519A (en) * 1926-05-26 1931-01-13 Western Electric Co Mechanical transmission system
US2458581A (en) * 1946-05-21 1949-01-11 Sperry Prod Inc Supersonic inspection
US2651148A (en) * 1949-11-23 1953-09-08 Raytheon Mfg Co Ultrasonic vibratory device
US2573168A (en) * 1950-05-23 1951-10-30 Bell Telephone Labor Inc Mechanical impedance transformer

Also Published As

Publication number Publication date
US3352376A (en) 1967-11-14
FR1411069A (en) 1965-09-17

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