BE879878A - Pavillon acoustique perfectionne et agencement transducteur-pavillon - Google Patents

Pavillon acoustique perfectionne et agencement transducteur-pavillon

Info

Publication number
BE879878A
BE879878A BE0/198008A BE198008A BE879878A BE 879878 A BE879878 A BE 879878A BE 0/198008 A BE0/198008 A BE 0/198008A BE 198008 A BE198008 A BE 198008A BE 879878 A BE879878 A BE 879878A
Authority
BE
Belgium
Prior art keywords
pavilion
transducer
arrangement
improved acoustic
improved
Prior art date
Application number
BE0/198008A
Other languages
English (en)
Inventor
R Salem
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of BE879878A publication Critical patent/BE879878A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • 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
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
    • 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
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
BE0/198008A 1978-11-09 1979-11-07 Pavillon acoustique perfectionne et agencement transducteur-pavillon BE879878A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/959,106 US4260928A (en) 1978-11-09 1978-11-09 Electro-acoustic transducer with horn and reflector

Publications (1)

Publication Number Publication Date
BE879878A true BE879878A (fr) 1980-03-03

Family

ID=25501674

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/198008A BE879878A (fr) 1978-11-09 1979-11-07 Pavillon acoustique perfectionne et agencement transducteur-pavillon

Country Status (10)

Country Link
US (1) US4260928A (fr)
JP (1) JPS5588498A (fr)
AU (1) AU5261379A (fr)
BE (1) BE879878A (fr)
BR (1) BR7907303A (fr)
CA (1) CA1136262A (fr)
DE (1) DE2944998A1 (fr)
FR (1) FR2441311A1 (fr)
GB (1) GB2035009A (fr)
NL (1) NL7908226A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE53117B1 (en) * 1982-05-14 1988-07-06 Sonic Tape Plc Improvements relating to focussing apparatus
GB2145905B (en) * 1983-08-31 1987-05-07 Kobishi Electric Co Ltd Audible warning device
US4825116A (en) * 1987-05-07 1989-04-25 Yokogawa Electric Corporation Transmitter-receiver of ultrasonic distance measuring device
FI95781C (fi) * 1994-04-19 1996-03-25 Outokumpu Mintec Oy Menetelmä ja laitteisto imukuivainlaitteen suodatinväliaineen puhdistamiseksi
US5543783A (en) * 1994-05-20 1996-08-06 Caddx-Caddi Controls, Inc. Glass break detector and a method therefor
DE102004011486A1 (de) * 2004-03-09 2005-09-29 Shih-Hsiung Li Sensoreinrichtung für ein System zur Hinderniserfassung
US7652411B2 (en) * 2006-09-18 2010-01-26 Medicis Technologies Corporation Transducer with shield
US8334637B2 (en) * 2006-09-18 2012-12-18 Liposonix, Inc. Transducer with shield
JP4547030B2 (ja) * 2009-02-10 2010-09-22 パナソニック株式会社 空気調和機
JP5755993B2 (ja) * 2011-10-21 2015-07-29 理想科学工業株式会社 超音波センサ
US10261167B2 (en) * 2014-09-22 2019-04-16 Symbol Technologies, Llc Co-located locationing technologies
US10641013B2 (en) 2016-02-16 2020-05-05 Go Lock Technology, Inc. Portable lock with integrity sensors
RU2647509C1 (ru) * 2016-12-14 2018-03-16 Владимир Борисович Комиссаренко Электроакустический преобразователь
US10778285B2 (en) 2017-01-04 2020-09-15 Go Lock Technology, Inc. Cable with integral sensing elements for fault detection
US10544605B2 (en) 2017-05-19 2020-01-28 Douglas A. Yates Sliding lockable housing with supplemental openings

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967957A (en) * 1957-09-17 1961-01-10 Massa Frank Electroacoustic transducer
US3058539A (en) * 1958-05-15 1962-10-16 Zenith Radio Corp Transducer with impedance-matching bridge
US3262307A (en) * 1963-10-28 1966-07-26 Stephen D Hart Omnidirectional ultrasonic search system
US3271596A (en) * 1963-11-12 1966-09-06 Boeing Co Electromechanical transducers
US3510698A (en) * 1967-04-17 1970-05-05 Dynamics Corp America Electroacoustical transducer
US3849679A (en) * 1970-02-12 1974-11-19 Dynamics Corp Massa Div Electroacoustic transducer with controlled beam pattern
US3716681A (en) * 1970-10-19 1973-02-13 Dynamics Corp Massa Div Piezolectric transducer having spider-like frame structure
JPS4963860U (fr) * 1972-06-26 1974-06-04
US3965455A (en) * 1974-04-25 1976-06-22 The United States Of America As Represented By The Secretary Of The Navy Focused arc beam transducer-reflector

Also Published As

Publication number Publication date
NL7908226A (nl) 1980-05-13
JPS5588498A (en) 1980-07-04
FR2441311A1 (fr) 1980-06-06
AU5261379A (en) 1980-05-15
GB2035009A (en) 1980-06-11
BR7907303A (pt) 1980-07-22
DE2944998A1 (de) 1980-05-22
CA1136262A (fr) 1982-11-23
US4260928A (en) 1981-04-07

Similar Documents

Publication Publication Date Title
TR21071A (tr) Ensektisid perholoalkilvinilsiklopropankarboksilatlar ve bunlara mahsus ara ueruenler
TR21804A (tr) Zirai uereler ve izouereler
BR7900663A (pt) Dispositivo e conjunto ministradores
DK74879A (da) Hoejtaler
BE879878A (fr) Pavillon acoustique perfectionne et agencement transducteur-pavillon
NO149596C (no) Lyd- og svingningsisolerende festeelement
IT1114278B (it) Agnete chelante e chelati
LU81239A1 (de) Wasch-und reinigungsmittel
BR7905167A (pt) Iglu
BR7902346A (pt) Transdutor
BE867144A (nl) Verbeterde stijl voorspouwwanden en dergelijke
BR7907193A (pt) Unidade agitadora e conunto agitador
BR7906592A (pt) 2-propil-pent-4-eno-l-al e sua obtencao
FI801064A (fi) Helisolerad klaemma foer isolerade ledningar
DK529378A (da) Anilidderivater
SE7810509L (sv) Sjelvgenomtrengande och sjelvgengande skruv
DK98479A (da) Rummelfri mikrofonkombination
TR19891A (tr) Ensektisid ve akarisid maddeler
DK437079A (da) Hoejttaler
DK101079A (da) Brokoblet forstaerker
DK567278A (da) Vaske og rensemiddel
IT1117409B (it) Procedimento per depurare etildiclicole e dipropilenglicole
IT1124688B (it) Amplificatore in controfase
FR2423918B1 (fr) Amplificateur
TR19933A (tr) N-hidroksi-n-fosfonometilglisinler ve bunlarin herbsitmadde olarak kullanilmalari